No BUCK files to build with buck? #3
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We will probably eventually move towards buck, but this is likely still several months away for us. We will probably wait for folly and fbthrift to provide open source BUCK files first. Internally at Facebook we do intend to switch most projects to use buck. However, buck still needs some more features and improvements to make this happen. (Mostly around handling of third-party libraries.) When we switch to buck internally we will probably switch the open source build to use buck as well. In the meantime, we figured that cmake would be easier for most external users, rather than requiring them to also download and build buck as a prerequisite to building fboss. |
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Thank you for reporting this issue and appreciate your patience. We've notified the core team for an update on this issue. We're looking for a response within the next 30 days or the issue may be closed. |
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I know this issue is very old, but I just revisited this thread with the other open source teams at FB. Short story: the common wisdom is that open source buck is not yet ready to easily do this. I'm going to leave this issue open to continue to track it, because right now we're maintaining two parallel build systems, which is... suboptimal. |
facebook-github-bot
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Summary: This should fix the Travis CI builds. It adds rust toolchain support inside docker and sets the required THRIFT env variable. Pull Request resolved: facebookexperimental/rust-shed#3 Reviewed By: krallin Differential Revision: D18905608 Pulled By: lukaspiatkowski fbshipit-source-id: 5db1eff6f215a6617d8acaa0c99a62d45225956b
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Nov 17, 2021
Summary:
Also fixes an undefined behavior in our code:
```
#0 0xca4b378 in facebook::fboss::phy::BaldEagle::fwSerdesParamsEyes(facebook::fboss::MdioController<facebook::fboss::YampMdio>::FullyLockedMdio&, facebook::fboss::phy::BaldEagle::LaneMode, facebook::fboss::LaneID)::$_46::operator()(int) const (/tmp/setup_link_test_bin-6.5.21+0xca4b378)
#1 0xca3d48c in facebook::fboss::phy::BaldEagle::fwSerdesParamsEyes(facebook::fboss::MdioController<facebook::fboss::YampMdio>::FullyLockedMdio&, facebook::fboss::phy::BaldEagle::LaneMode, facebook::fboss::LaneID) (/tmp/setup_link_test_bin-6.5.21+0xca3d48c)
#2 0xca3a8b1 in facebook::fboss::phy::BaldEagle::getPortInfo(facebook::fboss::Port const*, std::vector<facebook::fboss::LaneID, std::allocator<facebook::fboss::LaneID> > const&, std::vector<facebook::fboss::LaneID, std::allocator<facebook::fboss::LaneID> > const&) (/tmp/setup_link_test_bin-6.5.21+0xca3a8b1)
#3 0x72b0706 in facebook::fboss::YampPhyInterfaceHandler::getPortInfo(int, facebook::fboss::Port const*, facebook::fboss::phy::PhyPortConfig) (/tmp/setup_link_test_bin-6.5.21+0x72b0706)
#4 0x71c15d6 in std::_Function_handler<void (), facebook::fboss::YampPort::updateStats()::$_10>::_M_invoke(std::_Any_data const&) (/tmp/setup_link_test_bin-6.5.21+0x71c15d6)
#5 0x71a0578 in facebook::fboss::Pim::runOnPimThreadAfterDelay(std::function<void ()>, unsigned int)::'lambda'()::operator()() const::'lambda'()::operator()() const (/tmp/setup_link_test_bin-6.5.21+0x71a0578)
#6 0x1073e68e in folly::TimeoutManager::CobTimeouts::CobTimeout::timeoutExpired() (/tmp/setup_link_test_bin-6.5.21+0x1073e68e)
#7 0x107182ef in folly::AsyncTimeout::libeventCallback(int, short, void*) (/tmp/setup_link_test_bin-6.5.21+0x107182ef)
#8 0x14b144f7 in event_process_active (/tmp/setup_link_test_bin-6.5.21+0x14b144f7)
#9 0x14b14717 in event_base_loop (/tmp/setup_link_test_bin-6.5.21+0x14b14717)
#10 0x1071e2b3 in folly::EventBase::loopBody(int, bool) (/tmp/setup_link_test_bin-6.5.21+0x1071e2b3)
#11 0x1071d780 in folly::EventBase::loop() (/tmp/setup_link_test_bin-6.5.21+0x1071d780)
#12 0x107216fd in folly::EventBase::loopForever() (/tmp/setup_link_test_bin-6.5.21+0x107216fd)
#13 0x7fc324218660 in execute_native_thread_routine (/usr/local/fbcode/platform009/lib/libstdc++.so.6+0xd9660)
#14 0x7fc3240da20b in start_thread (/usr/local/fbcode/platform009/lib/libpthread.so.0+0x920b)
#15 0x7fc323feb16e in clone (/usr/local/fbcode/platform009/lib/libc.so.6+0x11816e)
UndefinedBehaviorSanitizer: float-cast-overflow fboss/lib/phy/facebook/credo/yamp/BaldEagle.cpp:1455:22 in
```
Reviewed By: birdsoup
Differential Revision: D32162784
fbshipit-source-id: f12a5d5a4f1dd2e9a2b7cef89fb6c268e2d4e587
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Mar 15, 2022
Summary: On Elbert, sometimes when we fail a test, we trigger ThreadSanitizer error due to thread leakage. This is messing up the logs for finding the real error. Example: https://www.internalfb.com/intern/sandcastle/job/18014399092681044/insights ``` WARNING: ThreadSanitizer: thread leak (pid=1196365) Thread T114 (tid=1197183, finished) created by main thread at: #0 pthread_create <null> (setup_qsfp_test_bin-credo-0.7.2+0xb4e184d) #1 CredoDebugCreateInterface(CredoContext*, CredoDebugInterface**) <null> (setup_qsfp_test_bin-credo-0.7.2+0xb2ff2c7) #2 facebook::fboss::SaiApiTable::queryApis(_sai_service_method_table_t*, std::set<_sai_api_t, std::less<_sai_api_t>, std::allocator<_sai_api_t> > const&) <null> (setup_qsfp_test_bin-credo-0.7.2+0x7a2b979) #3 facebook::fboss::SaiElbert8DDPhyPlatform::preHwInitialized() <null> (setup_qsfp_test_bin-credo-0.7.2+0x3fe8e50) #4 facebook::fboss::ElbertPhyManager::initExternalPhyMap() <null> (setup_qsfp_test_bin-credo-0.7.2+0x3f52e01) #5 facebook::fboss::WedgeManager::initExternalPhyMap() <null> (setup_qsfp_test_bin-credo-0.7.2+0x3ede87d) #6 facebook::fboss::ElbertManager::initExternalPhyMap() <null> (setup_qsfp_test_bin-credo-0.7.2+0x3f01cbb) #7 facebook::fboss::QsfpServiceHandler::init() <null> (setup_qsfp_test_bin-credo-0.7.2+0x3eb01bc) #8 facebook::fboss::setupThriftServer(std::unique_ptr<facebook::fboss::WedgeManager, std::default_delete<facebook::fboss::WedgeManager> >) <null> (setup_qsfp_test_bin-credo-0.7.2+0x3ead2b6) #9 facebook::fboss::HwQsfpEnsemble::init() <null> (setup_qsfp_test_bin-credo-0.7.2+0x3eabd50) #10 facebook::fboss::HwTest::SetUp() <null> (setup_qsfp_test_bin-credo-0.7.2+0x3e95920) #11 void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) <null> (setup_qsfp_test_bin-credo-0.7.2+0xabcdb8f) #12 __libc_start_main <null> (libc.so.6+0x25dc4) ThreadSanitizer: thread leak (/tmp/setup_qsfp_test_bin-credo-0.7.2+0xb4e184d) in pthread_create ================== ThreadSanitizer: reported 1 warnings ``` Calling the SAI destructor from our destructor should clean that up no matter how the program ends. (exception, gtest abort, normal exit, etc.) Also, when we fail in Setup(), the error is condition never satisfied. It's not clear which condition is failing. Reviewed By: jasmeetbagga Differential Revision: D34468555 fbshipit-source-id: dd0adf4579c404cf7e98e18d1b4f903bc16b5aa6
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Jun 2, 2022
Summary: The current write method goes in 4 steps. 1. disableRead 2. write request 3. wait for LSR assert. 4. enableRead 5. Read response Normally, a response would arrive after #4 thus, marking the transaction as successful. But occationally (1/10 times) the response arrives before #4 thus causing the device to completely miss the response -- resulting in a timeout. This change, replaces this with 1. Keeping read enabled throughout. 2. ignore LSR changes (Do not do #3). This change completely eliminates timeouts on wedge400+ with an FTDI USB device which do not need this sequencing. But we would still need this functionality for wedge100 where we use the native aspeed device (Pending a verification on wedge100. If it is not needed even on that platform, that functionality can be completely stripped.) Imported from: D35445732 Reviewed By: jasmeetbagga Differential Revision: D36388930 fbshipit-source-id: 3bfe0aa1e633732fecd48a14b478da01dc0a8f8b
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Aug 12, 2022
Summary:
This happened during an on-diff link test:
```
ThreadSanitizer:DEADLYSIGNAL
==3804651==ERROR: ThreadSanitizer: SEGV on unknown address 0x0000003a0deb (pc 0x56253d46afc2 bp 0x7f5fceda87e0 sp 0x7f5fceda87d0 T3804675)
==3804651==The signal is caused by a READ memory access.
#0 facebook::fboss::fsdb::FsdbPubSubManager::publishState(facebook::fboss::fsdb::OperDelta&&) <null> (setup_qsfp_test_bin-credo-0.7.2+0x4b04fc2)
#1 facebook::fboss::fsdb::FsdbComponentSyncer::publishDelta(facebook::fboss::fsdb::OperDelta&&, bool) <null> (setup_qsfp_test_bin-credo-0.7.2+0x4afb231)
#2 facebook::fboss::fsdb::FsdbStateComponentSyncer<facebook::fboss::cfg::QsfpServiceConfig>::publisherStateChanged(facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)::'lambda'()::operator()() const <null> (setup_qsfp_test_bin-credo-0.7.2+0x4af553e)
#3 void folly::detail::function::FunctionTraits<void ()>::callSmall<facebook::fboss::fsdb::FsdbStateComponentSyncer<facebook::fboss::cfg::QsfpServiceConfig>::publisherStateChanged(facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)::'lambda'()>(folly::detail::function::Data&) <null> (setup_qsfp_test_bin-credo-0.7.2+0x4af5389)
#4 void folly::detail::function::FunctionTraits<void ()>::callBig<folly::EventBase::runInEventBaseThreadAndWait(folly::Function<void ()>)::$_4>(folly::detail::function::Data&) <null> (setup_qsfp_test_bin-credo-0.7.2+0xc1dda4a)
#5 bool folly::AtomicNotificationQueue<folly::Function<void ()> >::drive<folly::EventBase::FuncRunner&>(folly::EventBase::FuncRunner&) <null> (setup_qsfp_test_bin-credo-0.7.2+0xc1dcd22)
#6 folly::EventBaseAtomicNotificationQueue<folly::Function<void ()>, folly::EventBase::FuncRunner>::execute() <null> (setup_qsfp_test_bin-credo-0.7.2+0xc1d722c)
#7 non-virtual thunk to folly::EventBaseAtomicNotificationQueue<folly::Function<void ()>, folly::EventBase::FuncRunner>::handlerReady(unsigned short) <null> (setup_qsfp_test_bin-credo-0.7.2+0xc1dedfd)
#8 folly::EventHandler::libeventCallback(int, short, void*) <null> (setup_qsfp_test_bin-credo-0.7.2+0xc1e287c)
#9 event_base_loop <null> (setup_qsfp_test_bin-credo-0.7.2+0xcd43578)
#10 (anonymous namespace)::EventBaseBackend::eb_event_base_loop(int) <null> (setup_qsfp_test_bin-credo-0.7.2+0xc1d95aa)
#11 folly::EventBase::loopMain(int, bool) <null> (setup_qsfp_test_bin-credo-0.7.2+0xc1d6127)
#12 folly::EventBase::loopForever() <null> (setup_qsfp_test_bin-credo-0.7.2+0xc1d9fa4)
#13 folly::run(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&) <null> (setup_qsfp_test_bin-credo-0.7.2+0xc140edf)
#14 std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (*)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> > > >::_M_run() <null> (setup_qsfp_test_bin-credo-0.7.2+0xc14190b)
#15 execute_native_thread_routine <null> (libstdc++.so.6+0xdf2e4)
#16 __tsan_thread_start_func <null> (setup_qsfp_test_bin-credo-0.7.2+0xd17efae)
#17 start_thread <null> (libc.so.6+0x979be)
#18 clone <null> (libc.so.6+0x127b9f)
```
Publishers are currently protected by publisherMutex_. But here we have publishState()->publishImpl(). We lock in publishImpl(). But publishState() does this without lock:
```
publishImpl(statePathPublisher_.get(), std::move(pubUnit));
```
If the other thread is calling createStateDeltaPublisher(), this pointer could be half written. We obtain this garbage pointer. Then obtain the lock while trying to use this garbage.
Also, removeStateDeltaPublisher() is completely unprotected. It seems to be used only in tests. But adding locks there for completeness.
Reviewed By: jasmeetbagga
Differential Revision: D38337566
fbshipit-source-id: 08c2f83bfaae649baa591549a53fa1a94d22e313
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Aug 12, 2022
Summary:
Using command from test plan:
```
==================
WARNING: ThreadSanitizer: data race on vptr (ctor/dtor vs virtual call) (pid=2900615)
Read of size 8 at 0x7b5400005000 by thread T7:
#0 folly::AsyncTimeout::libeventCallback(int, short, void*) folly/io/async/AsyncTimeout.cpp:174 (libfolly_io_async_async_base.so+0x46551)
#1 event_process_active /home/engshare/third-party2/libevent/1.4.14b_hphp/src/libevent-1.4.14b-stable/event.c:390:5 (libevent-1.4.so.2+0x85e8)
#2 event_base_loop /home/engshare/third-party2/libevent/1.4.14b_hphp/src/libevent-1.4.14b-stable/event.c:532:4 (libevent-1.4.so.2+0x85e8)
#3 folly::EventBase::loopMain(int, bool) folly/io/async/EventBase.cpp:400 (libfolly_io_async_async_base.so+0x55033)
#4 folly::EventBase::loopBody(int, bool) folly/io/async/EventBase.cpp:326 (libfolly_io_async_async_base.so+0x54655)
#5 folly::EventBase::loop() folly/io/async/EventBase.cpp:305 (libfolly_io_async_async_base.so+0x544cd)
#6 folly::EventBase::loopForever() folly/io/async/EventBase.cpp:545 (libfolly_io_async_async_base.so+0x58632)
#7 folly::run(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&) folly/io/async/ScopedEventBaseThread.cpp:40 (libfolly_io_async_scoped_event_base_thread.so+0xc592)
#8 void std::__invoke_impl<void, void (*)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> >(std::__invoke_other, void (*&&)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*&&, folly::EventBase*&&, folly::Baton<true, std::atomic>*&&, folly::Range<char const*>&&) third-party-buck/platform009/build/libgcc/include/c++/9.x/bits/invoke.h:60 (libfolly_io_async_scoped_event_base_thread.so+0x18545)
#9 std::__invoke_result<void (*)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> >::type std::__invoke<void (*)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> >(void (*&&)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*&&, folly::EventBase*&&, folly::Baton<true, std::atomic>*&&, folly::Range<char const*>&&) third-party-buck/platform009/build/libgcc/include/c++/9.x/bits/invoke.h:95 (libfolly_io_async_scoped_event_base_thread.so+0x18267)
#10 void std::thread::_Invoker<std::tuple<void (*)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> > >::_M_invoke<0ul, 1ul, 2ul, 3ul, 4ul>(std::_Index_tuple<0ul, 1ul, 2ul, 3ul, 4ul>) third-party-buck/platform009/build/libgcc/include/c++/9.x/thread:244 (libfolly_io_async_scoped_event_base_thread.so+0x18193)
#11 std::thread::_Invoker<std::tuple<void (*)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> > >::operator()() third-party-buck/platform009/build/libgcc/include/c++/9.x/thread:251 (libfolly_io_async_scoped_event_base_thread.so+0x180c8)
#12 std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (*)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> > > >::_M_run() third-party-buck/platform009/build/libgcc/include/c++/9.x/thread:195 (libfolly_io_async_scoped_event_base_thread.so+0x1784f)
#13 execute_native_thread_routine /home/engshare/third-party2/libgcc/9.x/src/gcc-9.x/x86_64-facebook-linux/libstdc++-v3/src/c++11/../../../.././libstdc++-v3/src/c++11/thread.cc:80:18 (libstdc++.so.6+0xd9660)
Previous write of size 8 at 0x7b5400005000 by main thread (mutexes: write M118355245544776416):
#0 facebook::fboss::fsdb::FsdbSubscriber<facebook::fboss::fsdb::OperState>::FsdbSubscriber(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, folly::EventBase*, folly::EventBase*, std::function<void (facebook::fboss::fsdb::OperState&&)>, bool, std::function<void (facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)>) fboss/fsdb/client/FsdbSubscriber.h:44 (libfboss_fsdb_client_fsdb_pub_sub.so+0x16eb06)
#1 facebook::fboss::fsdb::FsdbStateSubscriber::FsdbStateSubscriber(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, folly::EventBase*, folly::EventBase*, std::function<void (facebook::fboss::fsdb::OperState&&)>, bool, std::function<void (facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)>) fboss/fsdb/client/FsdbStateSubscriber.h:14 (libfboss_fsdb_client_fsdb_pub_sub.so+0x16e7d4)
#2 std::_MakeUniq<facebook::fboss::fsdb::FsdbStateSubscriber>::__single_object std::make_unique<facebook::fboss::fsdb::FsdbStateSubscriber, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, folly::EventBase*, folly::EventBase*, std::function<void (facebook::fboss::fsdb::OperState&&)>&, bool&, std::function<void (facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)>&>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, folly::EventBase*&&, folly::EventBase*&&, std::function<void (facebook::fboss::fsdb::OperState&&)>&, bool&, std::function<void (facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)>&) third-party-buck/platform009/build/libgcc/include/c++/9.x/bits/unique_ptr.h:857 (libfboss_fsdb_client_fsdb_pub_sub.so+0x16d101)
#3 _ZZN8facebook5fboss4fsdb17FsdbPubSubManager19addSubscriptionImplINS1_19FsdbStateSubscriberEEEvRKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaISB_EESt8functionIFvNS1_16FsdbStreamClient5StateESI_EENT_19FsdbSubUnitUpdateCbEbRKSB_iENKUlTyRSL_E_clISt13unordered_mapISB_St10unique_ptrISH_St14default_deleteISH_EESt4hashISB_ESt8equal_toISB_ESaISt4pairISN_SW_EEEEEDaSP_ fboss/fsdb/client/FsdbPubSubManager.cpp:243 (libfboss_fsdb_client_fsdb_pub_sub.so+0x16c8cd)
#4 _ZN5folly16SynchronizedBaseINS_12SynchronizedISt13unordered_mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt10unique_ptrIN8facebook5fboss4fsdb16FsdbStreamClientESt14default_deleteISD_EESt4hashIS8_ESt8equal_toIS8_ESaISt4pairIKS8_SG_EEENS_15SharedMutexImplILb0EvSt6atomicNS_24SharedMutexPolicyDefaultEEEEELNS_6detail22SynchronizedMutexLevelE2EE9withWLockIZNSC_17FsdbPubSubManager19addSubscriptionImplINSC_19FsdbStateSubscriberEEEvRKSt6vectorIS8_SaIS8_EESt8functionIFvNSD_5StateES18_EENT_19FsdbSubUnitUpdateCbEbRSM_iEUlTyRS1B_E_EEDaOS1B_ folly/Synchronized.h:305 (libfboss_fsdb_client_fsdb_pub_sub.so+0x16c6a7)
#5 void facebook::fboss::fsdb::FsdbPubSubManager::addSubscriptionImpl<facebook::fboss::fsdb::FsdbStateSubscriber>(std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, std::function<void (facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)>, facebook::fboss::fsdb::FsdbStateSubscriber::FsdbSubUnitUpdateCb, bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int) fboss/fsdb/client/FsdbPubSubManager.cpp:240 (libfboss_fsdb_client_fsdb_pub_sub.so+0x139f75)
#6 facebook::fboss::fsdb::FsdbPubSubManager::addStatePathSubscription(std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, std::function<void (facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)>, std::function<void (facebook::fboss::fsdb::OperState&&)>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int) fboss/fsdb/client/FsdbPubSubManager.cpp:190 (libfboss_fsdb_client_fsdb_pub_sub.so+0x139d50)
#7 facebook::fboss::TestSubscription<thriftpath::ChildThriftPath<facebook::fboss::cfg::QsfpServiceConfig, facebook::fboss::fsdb::FsdbOperStateRoot, thriftpath::Path<facebook::fboss::fsdb::QsfpServiceData, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, thriftpath::Path<facebook::fboss::fsdb::FsdbOperStateRoot, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, folly::Unit> > > >::TestSubscription(facebook::fboss::fsdb::FsdbPubSubManager*, thriftpath::ChildThriftPath<facebook::fboss::cfg::QsfpServiceConfig, facebook::fboss::fsdb::FsdbOperStateRoot, thriftpath::Path<facebook::fboss::fsdb::QsfpServiceData, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, thriftpath::Path<facebook::fboss::fsdb::FsdbOperStateRoot, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, folly::Unit> > >) fboss/qsfp_service/fsdb/facebook/test/QsfpFsdbSyncerTest.cpp:69 (fsdb-syncer-test+0x104e5d)
#8 facebook::fboss::TestSubscription<thriftpath::ChildThriftPath<facebook::fboss::cfg::QsfpServiceConfig, facebook::fboss::fsdb::FsdbOperStateRoot, thriftpath::Path<facebook::fboss::fsdb::QsfpServiceData, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, thriftpath::Path<facebook::fboss::fsdb::FsdbOperStateRoot, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, folly::Unit> > > > facebook::fboss::QsfpFsdbTcvrMgrTest::subscribe<thriftpath::ChildThriftPath<facebook::fboss::cfg::QsfpServiceConfig, facebook::fboss::fsdb::FsdbOperStateRoot, thriftpath::Path<facebook::fboss::fsdb::QsfpServiceData, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, thriftpath::Path<facebook::fboss::fsdb::FsdbOperStateRoot, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, folly::Unit> > > >(thriftpath::ChildThriftPath<facebook::fboss::cfg::QsfpServiceConfig, facebook::fboss::fsdb::FsdbOperStateRoot, thriftpath::Path<facebook::fboss::fsdb::QsfpServiceData, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, thriftpath::Path<facebook::fboss::fsdb::FsdbOperStateRoot, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, folly::Unit> > >) fboss/qsfp_service/fsdb/facebook/test/QsfpFsdbSyncerTest.cpp:158 (fsdb-syncer-test+0xe3417)
#9 facebook::fboss::QsfpFsdbTcvrMgrTest_testTcvrMgrConfigUpdate_Test::TestBody() fboss/qsfp_service/fsdb/facebook/test/QsfpFsdbSyncerTest.cpp:195 (fsdb-syncer-test+0xe2cd0)
#10 testing::Test::Run() /home/engshare/third-party2/googletest/20201023/src/googletest/googletest/src/gtest.cc:2680:50 (libgtest.so.1.10.0+0x4d6a5)
#11 testing::Test::Run() /home/engshare/third-party2/googletest/20201023/src/googletest/googletest/src/gtest.cc:2670:6 (libgtest.so.1.10.0+0x4d6a5)
#12 main common/gtest/LightMain.cpp:20 (libcommon_gtest_light_main.so+0x218a)
Location is heap block of size 592 at 0x7b5400005000 allocated by main thread:
#0 operator new(unsigned long) <null> (fsdb-syncer-test+0x110b2c)
#1 std::_MakeUniq<facebook::fboss::fsdb::FsdbStateSubscriber>::__single_object std::make_unique<facebook::fboss::fsdb::FsdbStateSubscriber, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, folly::EventBase*, folly::EventBase*, std::function<void (facebook::fboss::fsdb::OperState&&)>&, bool&, std::function<void (facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)>&>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, folly::EventBase*&&, folly::EventBase*&&, std::function<void (facebook::fboss::fsdb::OperState&&)>&, bool&, std::function<void (facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)>&) third-party-buck/platform009/build/libgcc/include/c++/9.x/bits/unique_ptr.h:857 (libfboss_fsdb_client_fsdb_pub_sub.so+0x16cf9f)
#2 _ZZN8facebook5fboss4fsdb17FsdbPubSubManager19addSubscriptionImplINS1_19FsdbStateSubscriberEEEvRKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaISB_EESt8functionIFvNS1_16FsdbStreamClient5StateESI_EENT_19FsdbSubUnitUpdateCbEbRKSB_iENKUlTyRSL_E_clISt13unordered_mapISB_St10unique_ptrISH_St14default_deleteISH_EESt4hashISB_ESt8equal_toISB_ESaISt4pairISN_SW_EEEEEDaSP_ fboss/fsdb/client/FsdbPubSubManager.cpp:243 (libfboss_fsdb_client_fsdb_pub_sub.so+0x16c8cd)
#3 _ZN5folly16SynchronizedBaseINS_12SynchronizedISt13unordered_mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt10unique_ptrIN8facebook5fboss4fsdb16FsdbStreamClientESt14default_deleteISD_EESt4hashIS8_ESt8equal_toIS8_ESaISt4pairIKS8_SG_EEENS_15SharedMutexImplILb0EvSt6atomicNS_24SharedMutexPolicyDefaultEEEEELNS_6detail22SynchronizedMutexLevelE2EE9withWLockIZNSC_17FsdbPubSubManager19addSubscriptionImplINSC_19FsdbStateSubscriberEEEvRKSt6vectorIS8_SaIS8_EESt8functionIFvNSD_5StateES18_EENT_19FsdbSubUnitUpdateCbEbRSM_iEUlTyRS1B_E_EEDaOS1B_ folly/Synchronized.h:305 (libfboss_fsdb_client_fsdb_pub_sub.so+0x16c6a7)
#4 void facebook::fboss::fsdb::FsdbPubSubManager::addSubscriptionImpl<facebook::fboss::fsdb::FsdbStateSubscriber>(std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, std::function<void (facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)>, facebook::fboss::fsdb::FsdbStateSubscriber::FsdbSubUnitUpdateCb, bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int) fboss/fsdb/client/FsdbPubSubManager.cpp:240 (libfboss_fsdb_client_fsdb_pub_sub.so+0x139f75)
#5 facebook::fboss::fsdb::FsdbPubSubManager::addStatePathSubscription(std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, std::function<void (facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)>, std::function<void (facebook::fboss::fsdb::OperState&&)>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int) fboss/fsdb/client/FsdbPubSubManager.cpp:190 (libfboss_fsdb_client_fsdb_pub_sub.so+0x139d50)
#6 facebook::fboss::TestSubscription<thriftpath::ChildThriftPath<facebook::fboss::cfg::QsfpServiceConfig, facebook::fboss::fsdb::FsdbOperStateRoot, thriftpath::Path<facebook::fboss::fsdb::QsfpServiceData, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, thriftpath::Path<facebook::fboss::fsdb::FsdbOperStateRoot, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, folly::Unit> > > >::TestSubscription(facebook::fboss::fsdb::FsdbPubSubManager*, thriftpath::ChildThriftPath<facebook::fboss::cfg::QsfpServiceConfig, facebook::fboss::fsdb::FsdbOperStateRoot, thriftpath::Path<facebook::fboss::fsdb::QsfpServiceData, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, thriftpath::Path<facebook::fboss::fsdb::FsdbOperStateRoot, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, folly::Unit> > >) fboss/qsfp_service/fsdb/facebook/test/QsfpFsdbSyncerTest.cpp:69 (fsdb-syncer-test+0x104e5d)
#7 facebook::fboss::TestSubscription<thriftpath::ChildThriftPath<facebook::fboss::cfg::QsfpServiceConfig, facebook::fboss::fsdb::FsdbOperStateRoot, thriftpath::Path<facebook::fboss::fsdb::QsfpServiceData, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, thriftpath::Path<facebook::fboss::fsdb::FsdbOperStateRoot, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, folly::Unit> > > > facebook::fboss::QsfpFsdbTcvrMgrTest::subscribe<thriftpath::ChildThriftPath<facebook::fboss::cfg::QsfpServiceConfig, facebook::fboss::fsdb::FsdbOperStateRoot, thriftpath::Path<facebook::fboss::fsdb::QsfpServiceData, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, thriftpath::Path<facebook::fboss::fsdb::FsdbOperStateRoot, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, folly::Unit> > > >(thriftpath::ChildThriftPath<facebook::fboss::cfg::QsfpServiceConfig, facebook::fboss::fsdb::FsdbOperStateRoot, thriftpath::Path<facebook::fboss::fsdb::QsfpServiceData, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, thriftpath::Path<facebook::fboss::fsdb::FsdbOperStateRoot, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, folly::Unit> > >) fboss/qsfp_service/fsdb/facebook/test/QsfpFsdbSyncerTest.cpp:158 (fsdb-syncer-test+0xe3417)
#8 facebook::fboss::QsfpFsdbTcvrMgrTest_testTcvrMgrConfigUpdate_Test::TestBody() fboss/qsfp_service/fsdb/facebook/test/QsfpFsdbSyncerTest.cpp:195 (fsdb-syncer-test+0xe2cd0)
#9 testing::Test::Run() /home/engshare/third-party2/googletest/20201023/src/googletest/googletest/src/gtest.cc:2680:50 (libgtest.so.1.10.0+0x4d6a5)
#10 testing::Test::Run() /home/engshare/third-party2/googletest/20201023/src/googletest/googletest/src/gtest.cc:2670:6 (libgtest.so.1.10.0+0x4d6a5)
#11 main common/gtest/LightMain.cpp:20 (libcommon_gtest_light_main.so+0x218a)
Mutex M118355245544776416 is already destroyed.
Thread T7 'FsdbReconnectTh' (tid=2901715, running) created by main thread at:
#0 pthread_create <null> (fsdb-syncer-test+0x1744ed)
#1 __gthread_create /home/engshare/third-party2/libgcc/9.x/src/gcc-9.x/x86_64-facebook-linux/libstdc++-v3/include/x86_64-facebook-linux/bits/gthr-default.h:663:35 (libstdc++.so.6+0xd993c)
#2 std::thread::_M_start_thread(std::unique_ptr<std::thread::_State, std::default_delete<std::thread::_State> >, void (*)()) /home/engshare/third-party2/libgcc/9.x/src/gcc-9.x/x86_64-facebook-linux/libstdc++-v3/src/c++11/../../../.././libstdc++-v3/src/c++11/thread.cc:135:37 (libstdc++.so.6+0xd993c)
#3 folly::ScopedEventBaseThread::ScopedEventBaseThread(folly::EventBase::Options, folly::EventBaseManager*, folly::Range<char const*>) folly/io/async/ScopedEventBaseThread.cpp:68 (libfolly_io_async_scoped_event_base_thread.so+0xc060)
#4 folly::ScopedEventBaseThread::ScopedEventBaseThread(folly::EventBaseManager*, folly::Range<char const*>) folly/io/async/ScopedEventBaseThread.cpp:60 (libfolly_io_async_scoped_event_base_thread.so+0xb4b8)
#5 folly::ScopedEventBaseThread::ScopedEventBaseThread(folly::Range<char const*>) folly/io/async/ScopedEventBaseThread.cpp:53 (libfolly_io_async_scoped_event_base_thread.so+0xb672)
#6 facebook::fboss::fsdb::FsdbPubSubManager::FsdbPubSubManager(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) fboss/fsdb/client/FsdbPubSubManager.h:139 (libfboss_fsdb_client_fsdb_pub_sub.so+0x1371f2)
#7 std::_MakeUniq<facebook::fboss::fsdb::FsdbPubSubManager>::__single_object std::make_unique<facebook::fboss::fsdb::FsdbPubSubManager, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) third-party-buck/platform009/build/libgcc/include/c++/9.x/bits/unique_ptr.h:857 (libfboss_fsdb_client_fsdb_syncer.so+0x10247)
#8 facebook::fboss::fsdb::FsdbSyncManager::FsdbSyncManager(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&) fboss/fsdb/client/FsdbSyncManager.cpp:12 (libfboss_fsdb_client_fsdb_syncer.so+0x100be)
#9 facebook::fboss::QsfpFsdbSyncManager::QsfpFsdbSyncManager() fboss/qsfp_service/fsdb/QsfpFsdbSyncManager.cpp:17 (libfboss_qsfp_service_fsdb_fsdb-syncer.so+0x33191)
#10 std::_MakeUniq<facebook::fboss::QsfpFsdbSyncManager>::__single_object std::make_unique<facebook::fboss::QsfpFsdbSyncManager>() third-party-buck/platform009/build/libgcc/include/c++/9.x/bits/unique_ptr.h:857 (libfboss_qsfp_service_platforms_wedge_wedge-platform.so+0x1ec45f)
#11 facebook::fboss::WedgeManager::WedgeManager(std::unique_ptr<facebook::fboss::TransceiverPlatformApi, std::default_delete<facebook::fboss::TransceiverPlatformApi> >, std::unique_ptr<facebook::fboss::PlatformMapping, std::default_delete<facebook::fboss::PlatformMapping> >, facebook::fboss::PlatformMode) fboss/qsfp_service/platforms/wedge/WedgeManager.cpp:63 (libfboss_qsfp_service_platforms_wedge_wedge-platform.so+0x1ebcab)
#12 facebook::fboss::MockWedgeManager::MockWedgeManager(int, int) fboss/qsfp_service/platforms/wedge/tests/MockWedgeManager.h:25 (libfboss_qsfp_service_test_transceiver_manager_test_helper.so+0x5408f)
#13 std::_MakeUniq<facebook::fboss::MockWedgeManager>::__single_object std::make_unique<facebook::fboss::MockWedgeManager, int const&>(int const&) third-party-buck/platform009/build/libgcc/include/c++/9.x/bits/unique_ptr.h:857 (libfboss_qsfp_service_test_transceiver_manager_test_helper.so+0x42edb)
#14 facebook::fboss::TransceiverManagerTestHelper::resetTransceiverManager() fboss/qsfp_service/test/TransceiverManagerTestHelper.cpp:35 (libfboss_qsfp_service_test_transceiver_manager_test_helper.so+0x43138)
#15 facebook::fboss::QsfpFsdbTcvrMgrTest_testTcvrMgrConfigUpdate_Test::TestBody() fboss/qsfp_service/fsdb/facebook/test/QsfpFsdbSyncerTest.cpp:191 (fsdb-syncer-test+0xe2c53)
#16 testing::Test::Run() /home/engshare/third-party2/googletest/20201023/src/googletest/googletest/src/gtest.cc:2680:50 (libgtest.so.1.10.0+0x4d6a5)
#17 testing::Test::Run() /home/engshare/third-party2/googletest/20201023/src/googletest/googletest/src/gtest.cc:2670:6 (libgtest.so.1.10.0+0x4d6a5)
#18 main common/gtest/LightMain.cpp:20 (libcommon_gtest_light_main.so+0x218a)
ThreadSanitizer: data race on vptr (ctor/dtor vs virtual call) folly/io/async/AsyncTimeout.cpp:174 in folly::AsyncTimeout::libeventCallback(int, short, void*)
==================
```
What's going on here?
In FsdbStreamClient constructor, we immediately schedule the periodic reconnect on the reconnect thread. The periodic call back is implemented in folly::AsyncTimeout like this:
```
auto timeout = reinterpret_cast<AsyncTimeout*>(arg);
...
timeout->timeoutExpired();
```
We're arg being passed in as a void*. timeoutExpired() is a virtual function we overrided.
If this gets called after the base class constructor FsdbStreamClient has finished but before child constructor classes like FsdbDeltaSubscriber has started, the vtable will point at the base class so virtual method calls have incorrect behavior.
See https://github.com/google/sanitizers/wiki/ThreadSanitizerPopularDataRaces#data-race-on-vptr-during-construction
IMHO, this is probably benign. Because the wrong vtable doesn't actually trigger wrong behavior if nobody override timeoutExpired() in child classes or call virtual methods from the base class implementation. But let's fix this to shut up the warning and prevent future problems.
FsdbStreamClient is not an AsyncTimeout. It needed an AsyncTimeout. So making it a member instead of a parent is probably a better fit. That avoids this hard problem altogether. So we don't need to add start() and stop() from everywhere.
Reviewed By: jasmeetbagga
Differential Revision: D37692128
fbshipit-source-id: fadf86ff7850d37cae49c651cca29c1d2b819b2b
facebook-github-bot
pushed a commit
that referenced
this issue
Aug 16, 2022
…members
Summary:
```
❯ buck test mode/dev-tsan //fboss/facebook/mka_service/mka_module/tests:MKAModuleTest -- --stress-runs 100 --regex MKAModuleTest.WarmBootConfigLoad
...
Summary
Pass: 78
Fail: 1
✗ fboss/facebook/mka_service/mka_module/tests:MKAModuleTest - MKAModuleTest.WarmBootConfigLoad
Fatal: 21
☢ fboss/facebook/mka_service/mka_module/tests:MKAModuleTest - MKAModuleTest.WarmBootConfigLoad
☢ fboss/facebook/mka_service/mka_module/tests:MKAModuleTest - MKAModuleTest.WarmBootConfigLoad
☢ fboss/facebook/mka_service/mka_module/tests:MKAModuleTest - MKAModuleTest.WarmBootConfigLoad
☢ fboss/facebook/mka_service/mka_module/tests:MKAModuleTest - MKAModuleTest.WarmBootConfigLoad
☢ fboss/facebook/mka_service/mka_module/tests:MKAModuleTest - MKAModuleTest.WarmBootConfigLoad
☢ fboss/facebook/mka_service/mka_module/tests:MKAModuleTest - MKAModuleTest.WarmBootConfigLoad
☢ fboss/facebook/mka_service/mka_module/tests:MKAModuleTest - MKAModuleTest.WarmBootConfigLoad
☢ fboss/facebook/mka_service/mka_module/tests:MKAModuleTest - MKAModuleTest.WarmBootConfigLoad
☢ fboss/facebook/mka_service/mka_module/tests:MKAModuleTest - MKAModuleTest.WarmBootConfigLoad
☢ fboss/facebook/mka_service/mka_module/tests:MKAModuleTest - MKAModuleTest.WarmBootConfigLoad
...and 11 more not shown...
```
Problem 1:
```
ThreadSanitizer: data race third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/basic_string.h:926 in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::length() const
==================
==================
WARNING: ThreadSanitizer: data race (pid=1286130)
Read of size 8 at 0x7b84000a3548 by thread T50 (mutexes: write M341564816177216360, read M730281896454009712):
#0 memcmp <null> (MKAModuleTest+0x26ebb7)
#1 std::char_traits<char>::compare(char const*, char const*, unsigned long) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/char_traits.h:361 (libfboss_agent_thrift_packet_stream_packet_stream_server.so+0x8931c)
#2 __gnu_cxx::__enable_if<__is_char<char>::__value, bool>::__type std::operator==<char>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/basic_string.h:6236 (libfboss_agent_thrift_packet_stream_packet_stream_server.so+0x89286)
#3 std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >::operator()(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) const third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/stl_function.h:356 (libfboss_agent_thrift_packet_stream_packet_stream_server.so+0x89141)
#4 std::__detail::_Hashtable_base<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, facebook::fboss::PacketStreamService::ClientInfo>, std::__detail::_Select1st, std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::hash<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<true, false, true> >::_M_equals(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, std::__detail::_Hash_node_value<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, facebook::fboss::PacketStreamService::ClientInfo>, true> const&) const third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/hashtable_policy.h:1616 (libfboss_agent_thrift_packet_stream_packet_stream_server.so+0x88f93)
#5 std::_Hashtable<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, facebook::fboss::PacketStreamService::ClientInfo>, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, facebook::fboss::PacketStreamService::ClientInfo> >, std::__detail::_Select1st, std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::hash<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true> >::_M_find_before_node(unsigned long, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long) const third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/hashtable.h:1821 (libfboss_agent_thrift_packet_stream_packet_stream_server.so+0x88a98)
#6 std::_Hashtable<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, facebook::fboss::PacketStreamService::ClientInfo>, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, facebook::fboss::PacketStreamService::ClientInfo> >, std::__detail::_Select1st, std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::hash<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true> >::_M_find_node(unsigned long, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long) const third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/hashtable.h:795 (libfboss_agent_thrift_packet_stream_packet_stream_server.so+0x89ed5)
#7 std::_Hashtable<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, facebook::fboss::PacketStreamService::ClientInfo>, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, facebook::fboss::PacketStreamService::ClientInfo> >, std::__detail::_Select1st, std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::hash<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true> >::find(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) const third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/hashtable.h:1591 (libfboss_agent_thrift_packet_stream_packet_stream_server.so+0x8d553)
#8 std::unordered_map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, facebook::fboss::PacketStreamService::ClientInfo, std::hash<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, facebook::fboss::PacketStreamService::ClientInfo> > >::find(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) const third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/unordered_map.h:880 (libfboss_agent_thrift_packet_stream_packet_stream_server.so+0x8cf85)
#9 auto facebook::fboss::PacketStreamService::send(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, facebook::fboss::TPacket&&)::$_3::operator()<std::unordered_map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, facebook::fboss::PacketStreamService::ClientInfo, std::hash<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, facebook::fboss::PacketStreamService::ClientInfo> > > const>(std::unordered_map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, facebook::fboss::PacketStreamService::ClientInfo, std::hash<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, facebook::fboss::PacketStreamService::ClientInfo> > > const&) const fboss/agent/thrift_packet_stream/PacketStreamService.cpp:71 (libfboss_agent_thrift_packet_stream_packet_stream_server.so+0x8c334)
#10 auto folly::SynchronizedBase<folly::Synchronized<std::unordered_map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, facebook::fboss::PacketStreamService::ClientInfo, std::hash<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, facebook::fboss::PacketStreamService::ClientInfo> > >, folly::SharedMutexImpl<false, void, std::atomic, folly::SharedMutexPolicyDefault> >, (folly::detail::SynchronizedMutexLevel)2>::withRLock<facebook::fboss::PacketStreamService::send(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, facebook::fboss::TPacket&&)::$_3>(facebook::fboss::PacketStreamService::send(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, facebook::fboss::TPacket&&)::$_3&&) const folly/Synchronized.h:342 (libfboss_agent_thrift_packet_stream_packet_stream_server.so+0x8c254)
#11 facebook::fboss::PacketStreamService::send(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, facebook::fboss::TPacket&&) fboss/agent/thrift_packet_stream/PacketStreamService.cpp:70 (libfboss_agent_thrift_packet_stream_packet_stream_server.so+0x8c1cb)
#12 facebook::fboss::BidirectionalPacketStream::send(facebook::fboss::TPacket&&) fboss/agent/thrift_packet_stream/BidirectionalPacketStream.cpp:265 (libfboss_agent_thrift_packet_stream_bidirectional_packet_stream.so+0xb92b0)
#13 facebook::fboss::AsyncThriftPacketTransport::send(std::unique_ptr<folly::IOBuf, std::default_delete<folly::IOBuf> > const&) fboss/agent/thrift_packet_stream/AsyncThriftPacketTransport.cpp:19 (libfboss_agent_thrift_packet_stream_bidirectional_packet_stream.so+0x6e131)
#14 auto facebook::fboss::mka::MKASession::timeoutExpired(folly::Synchronized<std::unique_ptr<facebook::fboss::mka::MKAParticipant, std::default_delete<facebook::fboss::mka::MKAParticipant> >, folly::SharedMutexImpl<false, void, std::atomic, folly::SharedMutexPolicyDefault> >&)::$_8::operator()<std::unique_ptr<facebook::fboss::mka::MKAParticipant, std::default_delete<facebook::fboss::mka::MKAParticipant> > >(std::unique_ptr<facebook::fboss::mka::MKAParticipant, std::default_delete<facebook::fboss::mka::MKAParticipant> >&) const fboss/facebook/mka_service/mka_module/MKASession.cpp:627 (libfboss_facebook_mka_service_mka_module_mka_module.so+0x15e1c3)
#15 auto folly::SynchronizedBase<folly::Synchronized<std::unique_ptr<facebook::fboss::mka::MKAParticipant, std::default_delete<facebook::fboss::mka::MKAParticipant> >, folly::SharedMutexImpl<false, void, std::atomic, folly::SharedMutexPolicyDefault> >, (folly::detail::SynchronizedMutexLevel)2>::withWLock<facebook::fboss::mka::MKASession::timeoutExpired(folly::Synchronized<std::unique_ptr<facebook::fboss::mka::MKAParticipant, std::default_delete<facebook::fboss::mka::MKAParticipant> >, folly::SharedMutexImpl<false, void, std::atomic, folly::SharedMutexPolicyDefault> >&)::$_8>(facebook::fboss::mka::MKASession::timeoutExpired(folly::Synchronized<std::unique_ptr<facebook::fboss::mka::MKAParticipant, std::default_delete<facebook::fboss::mka::MKAParticipant> >, folly::SharedMutexImpl<false, void, std::atomic, folly::SharedMutexPolicyDefault> >&)::$_8&&) folly/Synchronized.h:305 (libfboss_facebook_mka_service_mka_module_mka_module.so+0x11c014)
#16 facebook::fboss::mka::MKASession::timeoutExpired(folly::Synchronized<std::unique_ptr<facebook::fboss::mka::MKAParticipant, std::default_delete<facebook::fboss::mka::MKAParticipant> >, folly::SharedMutexImpl<false, void, std::atomic, folly::SharedMutexPolicyDefault> >&) fboss/facebook/mka_service/mka_module/MKASession.cpp:619 (libfboss_facebook_mka_service_mka_module_mka_module.so+0x11bf1a)
#17 facebook::fboss::mka::MKASession::timeoutExpired() fboss/facebook/mka_service/mka_module/MKASession.cpp:659 (libfboss_facebook_mka_service_mka_module_mka_module.so+0x11c219)
#18 facebook::fboss::mka::MKASession::MKASession(facebook::fboss::mka::MKASessionConfig const&, folly::EventBase*, std::unique_ptr<facebook::fboss::AsyncPacketTransport::ReadCallback, std::default_delete<facebook::fboss::AsyncPacketTransport::ReadCallback> >, std::shared_ptr<facebook::fboss::AsyncPacketTransport>, std::shared_ptr<facebook::fboss::mka::MacsecHandler>, std::function<void (std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>)::$_37::operator()() const fboss/facebook/mka_service/mka_module/MKASession.cpp:133 (libfboss_facebook_mka_service_mka_module_mka_module.so+0x131375)
#19 folly::detail::async_timeout_wrapper<facebook::fboss::mka::MKASession::MKASession(facebook::fboss::mka::MKASessionConfig const&, folly::EventBase*, std::unique_ptr<facebook::fboss::AsyncPacketTransport::ReadCallback, std::default_delete<facebook::fboss::AsyncPacketTransport::ReadCallback> >, std::shared_ptr<facebook::fboss::AsyncPacketTransport>, std::shared_ptr<facebook::fboss::mka::MacsecHandler>, std::function<void (std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>)::$_37>::timeoutExpired() folly/io/async/AsyncTimeout.h:255 (libfboss_facebook_mka_service_mka_module_mka_module.so+0x13132c)
#20 folly::AsyncTimeout::libeventCallback(int, short, void*) folly/io/async/AsyncTimeout.cpp:174 (libfolly_io_async_async_base.so+0x41e6b)
#21 event_process_active /home/engshare/third-party2/libevent/1.4.14b_hphp/src/libevent-1.4.14b-stable/event.c:390:5 (libevent-1.4.so.2+0x8608)
#22 event_base_loop /home/engshare/third-party2/libevent/1.4.14b_hphp/src/libevent-1.4.14b-stable/event.c:532:4 (libevent-1.4.so.2+0x8608)
#23 folly::EventBase::loopMain(int, bool) folly/io/async/EventBase.cpp:400 (libfolly_io_async_async_base.so+0x49c47)
#24 folly::EventBase::loopBody(int, bool) folly/io/async/EventBase.cpp:326 (libfolly_io_async_async_base.so+0x4940f)
#25 folly::EventBase::loop() folly/io/async/EventBase.cpp:305 (libfolly_io_async_async_base.so+0x49298)
#26 folly::EventBase::loopForever() folly/io/async/EventBase.cpp:545 (libfolly_io_async_async_base.so+0x5c7bf)
#27 folly::IOThreadPoolExecutor::threadRun(std::shared_ptr<folly::ThreadPoolExecutor::Thread>) folly/executors/IOThreadPoolExecutor.cpp:250 (libfolly_executors_io_thread_pool_executor.so+0x15b72)
#28 void std::__invoke_impl<void, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&>(std::__invoke_memfun_deref, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/invoke.h:74 (libfolly_executors_thread_pool_executor.so+0x56191)
#29 std::__invoke_result<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&>::type std::__invoke<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&>(void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/invoke.h:96 (libfolly_executors_thread_pool_executor.so+0x55f07)
#30 void std::_Bind<void (folly::ThreadPoolExecutor::* (folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)>::__call<void, 0ul, 1ul>(std::tuple<>&&, std::_Index_tuple<0ul, 1ul>) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/functional:420 (libfolly_executors_thread_pool_executor.so+0x55e6a)
#31 void std::_Bind<void (folly::ThreadPoolExecutor::* (folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)>::operator()<void>() third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/functional:503 (libfolly_executors_thread_pool_executor.so+0x55dc6)
#32 void folly::detail::function::FunctionTraits<void ()>::callSmall<std::_Bind<void (folly::ThreadPoolExecutor::* (folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) folly/Function.h:363 (libfolly_executors_thread_pool_executor.so+0x55a5d)
#33 folly::detail::function::FunctionTraits<void ()>::operator()() folly/Function.h:392 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xad423)
#34 folly::NamedThreadFactory::newThread(folly::Function<void ()>&&)::'lambda'()::operator()() folly/executors/thread_factory/NamedThreadFactory.h:40 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xad3bc)
#35 void std::__invoke_impl<void, folly::NamedThreadFactory::newThread(folly::Function<void ()>&&)::'lambda'()>(std::__invoke_other, folly::NamedThreadFactory::newThread(folly::Function<void ()>&&)::'lambda'()&&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/invoke.h:61 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xad34d)
#36 std::__invoke_result<folly::NamedThreadFactory::newThread(folly::Function<void ()>&&)::'lambda'()>::type std::__invoke<folly::NamedThreadFactory::newThread(folly::Function<void ()>&&)::'lambda'()>(folly::NamedThreadFactory::newThread(folly::Function<void ()>&&)::'lambda'()&&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/invoke.h:96 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xad29d)
#37 void std::thread::_Invoker<std::tuple<folly::NamedThreadFactory::newThread(folly::Function<void ()>&&)::'lambda'()> >::_M_invoke<0ul>(std::_Index_tuple<0ul>) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/std_thread.h:253 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xad245)
#38 std::thread::_Invoker<std::tuple<folly::NamedThreadFactory::newThread(folly::Function<void ()>&&)::'lambda'()> >::operator()() third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/std_thread.h:260 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xad1e5)
#39 std::thread::_State_impl<std::thread::_Invoker<std::tuple<folly::NamedThreadFactory::newThread(folly::Function<void ()>&&)::'lambda'()> > >::_M_run() third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/std_thread.h:211 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xacf79)
#40 execute_native_thread_routine <null> (libstdc++.so.6+0xdf2e4)
Previous write of size 8 at 0x7b84000a3548 by thread T44:
#0 memcpy <null> (MKAModuleTest+0x26d4b6)
#1 std::char_traits<char>::copy(char*, char const*, unsigned long) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/char_traits.h:409 (libfboss_agent_thrift_packet_stream_bidirectional_packet_stream.so+0x70881)
#2 std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_S_copy(char*, char const*, unsigned long) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/basic_string.h:359 (libfboss_agent_thrift_packet_stream_bidirectional_packet_stream.so+0x703d2)
#3 std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_assign(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/basic_string.tcc:272 (libfboss_agent_thrift_packet_stream_bidirectional_packet_stream.so+0x6ff46)
#4 std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::assign(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/basic_string.h:1386 (libfboss_agent_thrift_packet_stream_bidirectional_packet_stream.so+0x6fe19)
#5 std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::operator=(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/basic_string.h:680 (libfboss_agent_thrift_packet_stream_bidirectional_packet_stream.so+0x6e7b5)
#6 facebook::fboss::BidirectionalPacketStream::clientConnected(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) fboss/agent/thrift_packet_stream/BidirectionalPacketStream.cpp:280 (libfboss_agent_thrift_packet_stream_bidirectional_packet_stream.so+0x77e3a)
#7 facebook::fboss::PacketStreamService::connect(std::unique_ptr<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::default_delete<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >) fboss/agent/thrift_packet_stream/PacketStreamService.cpp:59 (libfboss_agent_thrift_packet_stream_packet_stream_server.so+0x5aab9)
#8 virtual thunk to facebook::fboss::PacketStreamService::connect(std::unique_ptr<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::default_delete<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >) fboss/agent/thrift_packet_stream/PacketStreamService.cpp (libfboss_agent_thrift_packet_stream_packet_stream_server.so+0x5bf5d)
#9 apache::thrift::ServiceHandler<facebook::fboss::PacketStream>::semifuture_connect(std::unique_ptr<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::default_delete<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >) buck-out/dev/gen/aab7ed39/fboss/agent/if/packet_stream-cpp2-packet_stream.thrift/gen-cpp2/PacketStream.cpp:35 (libfboss_agent_if_packet_stream-cpp2-services.so+0x91d45)
#10 apache::thrift::ServiceHandler<facebook::fboss::PacketStream>::future_connect(std::unique_ptr<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::default_delete<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >) buck-out/dev/gen/aab7ed39/fboss/agent/if/packet_stream-cpp2-packet_stream.thrift/gen-cpp2/PacketStream.cpp:41 (libfboss_agent_if_packet_stream-cpp2-services.so+0x91b8e)
#11 apache::thrift::ServiceHandler<facebook::fboss::PacketStream>::async_tm_connect(std::unique_ptr<apache::thrift::HandlerCallback<apache::thrift::ServerStream<facebook::fboss::TPacket> >, std::default_delete<apache::thrift::HandlerCallback<apache::thrift::ServerStream<facebook::fboss::TPacket> > > >, std::unique_ptr<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::default_delete<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >) buck-out/dev/gen/aab7ed39/fboss/agent/if/packet_stream-cpp2-packet_stream.thrift/gen-cpp2/PacketStream.cpp:60 (libfboss_agent_if_packet_stream-cpp2-services.so+0x8cc76)
#12 void facebook::fboss::PacketStreamAsyncProcessor::executeRequest_connect<apache::thrift::CompactProtocolReader, apache::thrift::CompactProtocolWriter>(apache::thrift::ServerRequest&&) buck-out/dev/gen/aab7ed39/fboss/agent/if/packet_stream-cpp2-packet_stream.thrift/gen-cpp2/PacketStream.tcc:71 (libfboss_agent_if_packet_stream-cpp2-services.so+0xbdf18)
#13 void apache::thrift::detail::ap::execute<facebook::fboss::PacketStreamAsyncProcessor>(facebook::fboss::PacketStreamAsyncProcessor*, apache::thrift::ServerRequest&&, apache::thrift::protocol::PROTOCOL_TYPES, apache::thrift::AsyncProcessorFactory::MethodMetadata const&) thrift/lib/cpp2/GeneratedCodeHelper.h:1235 (libfboss_agent_if_packet_stream-cpp2-services.so+0xba361)
#14 facebook::fboss::PacketStreamAsyncProcessor::executeRequest(apache::thrift::ServerRequest&&, apache::thrift::AsyncProcessorFactory::MethodMetadata const&) buck-out/dev/gen/aab7ed39/fboss/agent/if/packet_stream-cpp2-packet_stream.thrift/gen-cpp2/PacketStream.cpp:295 (libfboss_agent_if_packet_stream-cpp2-services.so+0x9081c)
#15 apache::thrift::(anonymous namespace)::MultiplexAsyncProcessor::executeRequest(apache::thrift::ServerRequest&&, apache::thrift::AsyncProcessorFactory::MethodMetadata const&) thrift/lib/cpp2/async/MultiplexAsyncProcessor.cpp:332 (libthrift_lib_cpp2_async_multiplex_async_processor.so+0x7f3df)
#16 apache::thrift::detail::ap::processViaExecuteRequest(apache::thrift::AsyncProcessor*, std::unique_ptr<apache::thrift::ResponseChannelRequest, apache::thrift::RequestsRegistry::Deleter>, apache::thrift::SerializedCompressedRequest&&, apache::thrift::AsyncProcessorFactory::MethodMetadata const&, apache::thrift::protocol::PROTOCOL_TYPES, apache::thrift::Cpp2RequestContext*, apache::thrift::concurrency::ThreadManager*)::'lambda'(bool)::operator()(bool) thrift/lib/cpp2/GeneratedCodeHelper.h:1023 (libthrift_lib_cpp2_server.so+0x385b76)
#17 apache::thrift::detail::ap::processViaExecuteRequest(apache::thrift::AsyncProcessor*, std::unique_ptr<apache::thrift::ResponseChannelRequest, apache::thrift::RequestsRegistry::Deleter>, apache::thrift::SerializedCompressedRequest&&, apache::thrift::AsyncProcessorFactory::MethodMetadata const&, apache::thrift::protocol::PROTOCOL_TYPES, apache::thrift::Cpp2RequestContext*, apache::thrift::concurrency::ThreadManager*)::'lambda'()::operator()() thrift/lib/cpp2/GeneratedCodeHelper.h:1032 (libthrift_lib_cpp2_server.so+0x385ed7)
#18 void folly::detail::function::FunctionTraits<void ()>::callBig<apache::thrift::detail::ap::processViaExecuteRequest(apache::thrift::AsyncProcessor*, std::unique_ptr<apache::thrift::ResponseChannelRequest, apache::thrift::RequestsRegistry::Deleter>, apache::thrift::SerializedCompressedRequest&&, apache::thrift::AsyncProcessorFactory::MethodMetadata const&, apache::thrift::protocol::PROTOCOL_TYPES, apache::thrift::Cpp2RequestContext*, apache::thrift::concurrency::ThreadManager*)::'lambda'()>(folly::detail::function::Data&) folly/Function.h:377 (libthrift_lib_cpp2_server.so+0x385d7d)
#19 folly::detail::function::FunctionTraits<void ()>::operator()() folly/Function.h:392 (libthrift_lib_cpp_concurrency_thread_manager.so+0x985b3)
#20 apache::thrift::concurrency::FunctionRunner::run() thrift/lib/cpp/concurrency/FunctionRunner.h:138 (libthrift_lib_cpp_concurrency_thread_manager.so+0x97f1a)
#21 virtual thunk to apache::thrift::concurrency::FunctionRunner::run() thrift/lib/cpp/concurrency/FunctionRunner.h (libthrift_lib_cpp_concurrency_thread_manager.so+0x98131)
#22 apache::thrift::concurrency::ThreadManager::Task::run()::'lambda'()::operator()() const thrift/lib/cpp/concurrency/ThreadManager.cpp:178 (libthrift_lib_cpp_concurrency_thread_manager.so+0xb73d9)
#23 apache::thrift::concurrency::ThreadManager::Task::run() folly/lang/Exception.h:285 (libthrift_lib_cpp_concurrency_thread_manager.so+0xb6a85)
#24 apache::thrift::concurrency::ThreadManager::Impl::Worker::run() thrift/lib/cpp/concurrency/ThreadManager.cpp:653 (libthrift_lib_cpp_concurrency_thread_manager.so+0xb63b8)
#25 apache::thrift::concurrency::PthreadThread::threadMain(void*) thrift/lib/cpp/concurrency/PosixThreadFactory.cpp:210 (libthrift_lib_cpp_concurrency_posix_thread_factory.so+0xacd7)
Location is heap block of size 4736 at 0x7b84000a2800 allocated by main thread:
#0 operator new(unsigned long, std::align_val_t) <null> (MKAModuleTest+0x202b2b)
#1 __gnu_cxx::new_allocator<std::_Sp_counted_ptr_inplace<facebook::fboss::BidirectionalPacketStream, std::allocator<facebook::fboss::BidirectionalPacketStream>, (__gnu_cxx::_Lock_policy)2> >::allocate(unsigned long, void const*) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/ext/new_allocator.h:125 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xb1046)
#2 std::allocator_traits<std::allocator<std::_Sp_counted_ptr_inplace<facebook::fboss::BidirectionalPacketStream, std::allocator<facebook::fboss::BidirectionalPacketStream>, (__gnu_cxx::_Lock_policy)2> > >::allocate(std::allocator<std::_Sp_counted_ptr_inplace<facebook::fboss::BidirectionalPacketStream, std::allocator<facebook::fboss::BidirectionalPacketStream>, (__gnu_cxx::_Lock_policy)2> >&, unsigned long) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/allocator.h:197 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xb0f09)
#3 std::__allocated_ptr<std::allocator<std::_Sp_counted_ptr_inplace<facebook::fboss::BidirectionalPacketStream, std::allocator<facebook::fboss::BidirectionalPacketStream>, (__gnu_cxx::_Lock_policy)2> > > std::__allocate_guarded<std::allocator<std::_Sp_counted_ptr_inplace<facebook::fboss::BidirectionalPacketStream, std::allocator<facebook::fboss::BidirectionalPacketStream>, (__gnu_cxx::_Lock_policy)2> > >(std::allocator<std::_Sp_counted_ptr_inplace<facebook::fboss::BidirectionalPacketStream, std::allocator<facebook::fboss::BidirectionalPacketStream>, (__gnu_cxx::_Lock_policy)2> >&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/allocated_ptr.h:97 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xb0b1e)
#4 std::__shared_count<(__gnu_cxx::_Lock_policy)2>::__shared_count<facebook::fboss::BidirectionalPacketStream, std::allocator<facebook::fboss::BidirectionalPacketStream>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, folly::EventBase*, folly::EventBase*, double&>(facebook::fboss::BidirectionalPacketStream*&, std::_Sp_alloc_shared_tag<std::allocator<facebook::fboss::BidirectionalPacketStream> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, folly::EventBase*&&, folly::EventBase*&&, double&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/shared_ptr_base.h:704 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xb082c)
#5 std::__shared_ptr<facebook::fboss::BidirectionalPacketStream, (__gnu_cxx::_Lock_policy)2>::__shared_ptr<std::allocator<facebook::fboss::BidirectionalPacketStream>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, folly::EventBase*, folly::EventBase*, double&>(std::_Sp_alloc_shared_tag<std::allocator<facebook::fboss::BidirectionalPacketStream> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, folly::EventBase*&&, folly::EventBase*&&, double&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/shared_ptr_base.h:1398 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xb073f)
#6 std::shared_ptr<facebook::fboss::BidirectionalPacketStream>::shared_ptr<std::allocator<facebook::fboss::BidirectionalPacketStream>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, folly::EventBase*, folly::EventBase*, double&>(std::_Sp_alloc_shared_tag<std::allocator<facebook::fboss::BidirectionalPacketStream> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, folly::EventBase*&&, folly::EventBase*&&, double&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/shared_ptr.h:409 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xb0617)
#7 std::shared_ptr<facebook::fboss::BidirectionalPacketStream> std::allocate_shared<facebook::fboss::BidirectionalPacketStream, std::allocator<facebook::fboss::BidirectionalPacketStream>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, folly::EventBase*, folly::EventBase*, double&>(std::allocator<facebook::fboss::BidirectionalPacketStream> const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, folly::EventBase*&&, folly::EventBase*&&, double&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/shared_ptr.h:862 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xb0496)
#8 std::shared_ptr<facebook::fboss::BidirectionalPacketStream> std::make_shared<facebook::fboss::BidirectionalPacketStream, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, folly::EventBase*, folly::EventBase*, double&>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, folly::EventBase*&&, folly::EventBase*&&, double&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/shared_ptr.h:878 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xa7095)
#9 facebook::fboss::mka::MKAModule::MKAModule(bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, double, unsigned short, unsigned short, unsigned short, bool) fboss/facebook/mka_service/mka_module/MKAModule.cpp:149 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xa5f5a)
#10 std::_MakeUniq<facebook::fboss::mka::MKAModule>::__single_object std::make_unique<facebook::fboss::mka::MKAModule, bool, char const (&) [12], double const&, unsigned short&, unsigned short, unsigned short, bool&>(bool&&, char const (&) [12], double const&, unsigned short&, unsigned short&&, unsigned short&&, bool&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/unique_ptr.h:962 (MKAModuleTest+0x1dd436)
#11 MKAModuleTest::startMKAModule(bool) fboss/facebook/mka_service/mka_module/tests/MKAModuleTest.cpp:149 (MKAModuleTest+0x1bc348)
#12 MKAModuleTest_WarmBootConfigLoad_Test::TestBody() fboss/facebook/mka_service/mka_module/tests/MKAModuleTest.cpp:466 (MKAModuleTest+0x15e1c7)
#13 testing::Test::Run() /home/engshare/third-party2/googletest/1.11.0/src/googletest/googletest/src/gtest.cc:2682:50 (libgtest.so.1.11.0+0x50f35)
#14 testing::Test::Run() /home/engshare/third-party2/googletest/1.11.0/src/googletest/googletest/src/gtest.cc:2672:6 (libgtest.so.1.11.0+0x50f35)
#15 main common/gtest/LightMain.cpp:20 (libcommon_gtest_light_main.so+0x2161)
Mutex M341564816177216360 is already destroyed.
Mutex M730281896454009712 is already destroyed.
Thread T50 'MkaIOWorker0' (tid=1291160, running) created by main thread at:
#0 pthread_create <null> (MKAModuleTest+0x26952d)
#1 std::thread::_M_start_thread(std::unique_ptr<std::thread::_State, std::default_delete<std::thread::_State> >, void (*)()) <null> (libstdc++.so.6+0xdf5ee)
#2 folly::NamedThreadFactory::newThread(folly::Function<void ()>&&) folly/executors/thread_factory/NamedThreadFactory.h:37 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xaab23)
#3 folly::ThreadPoolExecutor::addThreads(unsigned long) folly/executors/ThreadPoolExecutor.cpp:218 (libfolly_executors_thread_pool_executor.so+0x1ed65)
#4 folly::ThreadPoolExecutor::ensureActiveThreads() folly/executors/ThreadPoolExecutor.cpp:502 (libfolly_executors_thread_pool_executor.so+0x217ab)
#5 folly::IOThreadPoolExecutor::getEventBase() folly/executors/IOThreadPoolExecutor.cpp:173 (libfolly_executors_io_thread_pool_executor.so+0x163dc)
#6 facebook::fboss::mka::MKAModule::MKAModule(bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, double, unsigned short, unsigned short, unsigned short, bool) fboss/facebook/mka_service/mka_module/MKAModule.cpp:152 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xa5f05)
#7 std::_MakeUniq<facebook::fboss::mka::MKAModule>::__single_object std::make_unique<facebook::fboss::mka::MKAModule, bool, char const (&) [12], double const&, unsigned short&, unsigned short, unsigned short, bool&>(bool&&, char const (&) [12], double const&, unsigned short&, unsigned short&&, unsigned short&&, bool&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/unique_ptr.h:962 (MKAModuleTest+0x1dd436)
#8 MKAModuleTest::startMKAModule(bool) fboss/facebook/mka_service/mka_module/tests/MKAModuleTest.cpp:149 (MKAModuleTest+0x1bc348)
#9 MKAModuleTest_WarmBootConfigLoad_Test::TestBody() fboss/facebook/mka_service/mka_module/tests/MKAModuleTest.cpp:466 (MKAModuleTest+0x15e1c7)
#10 testing::Test::Run() /home/engshare/third-party2/googletest/1.11.0/src/googletest/googletest/src/gtest.cc:2682:50 (libgtest.so.1.11.0+0x50f35)
#11 testing::Test::Run() /home/engshare/third-party2/googletest/1.11.0/src/googletest/googletest/src/gtest.cc:2672:6 (libgtest.so.1.11.0+0x50f35)
#12 main common/gtest/LightMain.cpp:20 (libcommon_gtest_light_main.so+0x2161)
Thread T44 (tid=1291175, running) created by thread T45 at:
#0 pthread_create <null> (MKAModuleTest+0x26952d)
#1 apache::thrift::concurrency::PthreadThread::start() thrift/lib/cpp/concurrency/PosixThreadFactory.cpp:110 (libthrift_lib_cpp_concurrency_posix_thread_factory.so+0xbf92)
#2 apache::thrift::concurrency::ThreadManager::Impl::addWorker(unsigned long) thrift/lib/cpp/concurrency/ThreadManager.cpp:679 (libthrift_lib_cpp_concurrency_thread_manager.so+0x62028)
#3 apache::thrift::concurrency::(anonymous namespace)::SimpleThreadManagerImpl::start() thrift/lib/cpp/concurrency/ThreadManager.cpp:446 (libthrift_lib_cpp_concurrency_thread_manager.so+0x776c4)
#4 apache::thrift::ThriftServer::setupThreadManager() thrift/lib/cpp2/server/ThriftServer.cpp:725 (libthrift_lib_cpp2_server.so+0x42a776)
#5 apache::thrift::ThriftServer::setup() thrift/lib/cpp2/server/ThriftServer.cpp:471 (libthrift_lib_cpp2_server.so+0x4270ba)
#6 apache::thrift::ThriftServer::serve() thrift/lib/cpp2/server/ThriftServer.cpp:1079 (libthrift_lib_cpp2_server.so+0x43be58)
#7 apache::thrift::util::ScopedServerThread::Helper::run() thrift/lib/cpp2/util/ScopedServerThread.cpp:186 (libthrift_lib_cpp2_util_scoped_server_thread.so+0x118f9)
#8 apache::thrift::concurrency::PthreadThread::threadMain(void*) thrift/lib/cpp/concurrency/PosixThreadFactory.cpp:210 (libthrift_lib_cpp_concurrency_posix_thread_factory.so+0xacd7)
```
In BidirectionalPacketStream::send(), we check clientConnected_. Then use connectedClientId_ to send. In BidirectionalPacketStream::clientConnected(), we immediately set clientConnected_ to true. Then store connectedClientId_. So it's possible for connectedClientId_ to be half baked when send() is using it.
Setting clientConnected_ after connectedClientId_ will make sure we exit send() instead of using half baked members.
Problem 2:
```
==================
WARNING: ThreadSanitizer: data race (pid=1423249)
Write of size 8 at 0x7b840000bfc0 by thread T44:
#0 std::__uniq_ptr_impl<apache::thrift::Client<facebook::fboss::PacketStream>, std::default_delete<apache::thrift::Client<facebook::fboss::PacketStream> > >::reset(apache::thrift::Client<facebook::fboss::PacketStream>*) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/unique_ptr.h:180 (libfboss_agent_thrift_packet_stream_packet_stream_client.so+0x70cc9)
#1 std::unique_ptr<apache::thrift::Client<facebook::fboss::PacketStream>, std::default_delete<apache::thrift::Client<facebook::fboss::PacketStream> > >::reset(apache::thrift::Client<facebook::fboss::PacketStream>*) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/unique_ptr.h:456 (libfboss_agent_thrift_packet_stream_packet_stream_client.so+0x8677e)
#2 facebook::fboss::PacketStreamClient::cancel()::$_5::operator()() const fboss/agent/thrift_packet_stream/PacketStreamClient.cpp:156 (libfboss_agent_thrift_packet_stream_packet_stream_client.so+0x8670d)
#3 void folly::detail::function::FunctionTraits<void ()>::callSmall<facebook::fboss::PacketStreamClient::cancel()::$_5>(folly::detail::function::Data&) folly/Function.h:363 (libfboss_agent_thrift_packet_stream_packet_stream_client.so+0x866bd)
#4 folly::detail::function::FunctionTraits<void ()>::operator()() folly/Function.h:392 (libfolly_io_async_async_base.so+0x4c4c3)
#5 folly::EventBase::runInEventBaseThreadAndWait(folly::Function<void ()>)::$_4::operator()() folly/io/async/EventBase.cpp:681 (libfolly_io_async_async_base.so+0x72f02)
#6 void folly::detail::function::FunctionTraits<void ()>::callBig<folly::EventBase::runInEventBaseThreadAndWait(folly::Function<void ()>)::$_4>(folly::detail::function::Data&) folly/Function.h:377 (libfolly_io_async_async_base.so+0x72d5d)
#7 folly::detail::function::FunctionTraits<void ()>::operator()() folly/Function.h:392 (libfolly_io_async_async_base.so+0x4c4c3)
#8 folly::EventBase::FuncRunner::operator()(folly::Function<void ()>) folly/io/async/EventBase.cpp:124 (libfolly_io_async_async_base.so+0x6ecd9)
#9 folly::AtomicNotificationQueueTaskStatus folly::detail::invokeConsumerWithTask<folly::Function<void ()>, folly::EventBase::FuncRunner&, void, void, void>(folly::EventBase::FuncRunner&, folly::Function<void ()>&&, std::shared_ptr<folly::RequestContext>&&) folly/io/async/AtomicNotificationQueue-inl.h:281 (libfolly_io_async_async_base.so+0x6e45a)
#10 bool folly::AtomicNotificationQueue<folly::Function<void ()> >::drive<folly::EventBase::FuncRunner&>(folly::EventBase::FuncRunner&) folly/io/async/AtomicNotificationQueue-inl.h:339 (libfolly_io_async_async_base.so+0x6e066)
#11 bool folly::EventBaseAtomicNotificationQueue<folly::Function<void ()>, folly::EventBase::FuncRunner>::drive<folly::EventBase::FuncRunner&>(folly::EventBase::FuncRunner&) folly/io/async/EventBaseAtomicNotificationQueue-inl.h:250 (libfolly_io_async_async_base.so+0x6d9cf)
#12 folly::EventBaseAtomicNotificationQueue<folly::Function<void ()>, folly::EventBase::FuncRunner>::execute() folly/io/async/EventBaseAtomicNotificationQueue-inl.h:269 (libfolly_io_async_async_base.so+0x4c747)
#13 folly::EventBaseAtomicNotificationQueue<folly::Function<void ()>, folly::EventBase::FuncRunner>::handlerReady(unsigned short) folly/io/async/EventBaseAtomicNotificationQueue-inl.h:261 (libfolly_io_async_async_base.so+0x78194)
#14 non-virtual thunk to folly::EventBaseAtomicNotificationQueue<folly::Function<void ()>, folly::EventBase::FuncRunner>::handlerReady(unsigned short) folly/io/async/EventBaseAtomicNotificationQueue.h (libfolly_io_async_async_base.so+0x7826c)
#15 folly::EventHandler::libeventCallback(int, short, void*) folly/io/async/EventHandler.cpp:159 (libfolly_io_async_async_base.so+0x84b78)
#16 event_process_active /home/engshare/third-party2/libevent/1.4.14b_hphp/src/libevent-1.4.14b-stable/event.c:390:5 (libevent-1.4.so.2+0x8608)
#17 event_base_loop /home/engshare/third-party2/libevent/1.4.14b_hphp/src/libevent-1.4.14b-stable/event.c:532:4 (libevent-1.4.so.2+0x8608)
#18 folly::EventBase::loopMain(int, bool) folly/io/async/EventBase.cpp:400 (libfolly_io_async_async_base.so+0x49c47)
#19 folly::EventBase::loopBody(int, bool) folly/io/async/EventBase.cpp:326 (libfolly_io_async_async_base.so+0x4940f)
#20 folly::EventBase::loop() folly/io/async/EventBase.cpp:305 (libfolly_io_async_async_base.so+0x49298)
#21 folly::EventBase::loopForever() folly/io/async/EventBase.cpp:545 (libfolly_io_async_async_base.so+0x5c7bf)
#22 folly::run(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&) folly/io/async/ScopedEventBaseThread.cpp:40 (libfolly_io_async_scoped_event_base_thread.so+0x8b78)
#23 void std::__invoke_impl<void, void (*)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> >(std::__invoke_other, void (*&&)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*&&, folly::EventBase*&&, folly::Baton<true, std::atomic>*&&, folly::Range<char const*>&&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/invoke.h:61 (libfolly_io_async_scoped_event_base_thread.so+0x101e0)
#24 std::__invoke_result<void (*)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> >::type std::__invoke<void (*)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> >(void (*&&)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*&&, folly::EventBase*&&, folly::Baton<true, std::atomic>*&&, folly::Range<char const*>&&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/invoke.h:96 (libfolly_io_async_scoped_event_base_thread.so+0xff14)
#25 void std::thread::_Invoker<std::tuple<void (*)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> > >::_M_invoke<0ul, 1ul, 2ul, 3ul, 4ul>(std::_Index_tuple<0ul, 1ul, 2ul, 3ul, 4ul>) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/std_thread.h:253 (libfolly_io_async_scoped_event_base_thread.so+0xfe4d)
#26 std::thread::_Invoker<std::tuple<void (*)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> > >::operator()() third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/std_thread.h:260 (libfolly_io_async_scoped_event_base_thread.so+0xfd85)
#27 std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (*)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> > > >::_M_run() third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/std_thread.h:211 (libfolly_io_async_scoped_event_base_thread.so+0xf759)
#28 execute_native_thread_routine <null> (libstdc++.so.6+0xdf2e4)
Previous read of size 8 at 0x7b840000bfc0 by thread T43:
#0 std::__uniq_ptr_impl<apache::thrift::Client<facebook::fboss::PacketStream>, std::default_delete<apache::thrift::Client<facebook::fboss::PacketStream> > >::_M_ptr() const third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/unique_ptr.h:173 (libfboss_agent_thrift_packet_stream_packet_stream_client.so+0x6e211)
#1 std::unique_ptr<apache::thrift::Client<facebook::fboss::PacketStream>, std::default_delete<apache::thrift::Client<facebook::fboss::PacketStream> > >::get() const third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/unique_ptr.h:422 (libfboss_agent_thrift_packet_stream_packet_stream_client.so+0x6e1b5)
#2 std::unique_ptr<apache::thrift::Client<facebook::fboss::PacketStream>, std::default_delete<apache::thrift::Client<facebook::fboss::PacketStream> > >::operator bool() const third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/unique_ptr.h:436 (libfboss_agent_thrift_packet_stream_packet_stream_client.so+0x33fb5)
#3 facebook::fboss::PacketStreamClient::isConnectedToServer() fboss/agent/thrift_packet_stream/PacketStreamClient.cpp:29 (libfboss_agent_thrift_packet_stream_packet_stream_client.so+0x33e41)
#4 facebook::fboss::BidirectionalPacketStream::close(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) fboss/agent/thrift_packet_stream/BidirectionalPacketStream.cpp:208 (libfboss_agent_thrift_packet_stream_bidirectional_packet_stream.so+0xb5378)
#5 facebook::fboss::AsyncThriftPacketTransport::close() fboss/agent/thrift_packet_stream/AsyncThriftPacketTransport.cpp:27 (libfboss_agent_thrift_packet_stream_bidirectional_packet_stream.so+0x6e543)
#6 facebook::fboss::mka::MKASession::stop()::$_0::operator()() const fboss/facebook/mka_service/mka_module/MKASession.cpp:149 (libfboss_facebook_mka_service_mka_module_mka_module.so+0x157127)
#7 void folly::detail::function::FunctionTraits<void ()>::callSmall<facebook::fboss::mka::MKASession::stop()::$_0>(folly::detail::function::Data&) folly/Function.h:363 (libfboss_facebook_mka_service_mka_module_mka_module.so+0x15704d)
#8 folly::detail::function::FunctionTraits<void ()>::operator()() folly/Function.h:392 (libfolly_io_async_async_base.so+0x4c4c3)
#9 folly::EventBase::runInEventBaseThreadAndWait(folly::Function<void ()>)::$_4::operator()() folly/io/async/EventBase.cpp:681 (libfolly_io_async_async_base.so+0x72f02)
#10 void folly::detail::function::FunctionTraits<void ()>::callBig<folly::EventBase::runInEventBaseThreadAndWait(folly::Function<void ()>)::$_4>(folly::detail::function::Data&) folly/Function.h:377 (libfolly_io_async_async_base.so+0x72d5d)
#11 folly::detail::function::FunctionTraits<void ()>::operator()() folly/Function.h:392 (libfolly_io_async_async_base.so+0x4c4c3)
#12 folly::EventBase::FuncRunner::operator()(folly::Function<void ()>) folly/io/async/EventBase.cpp:124 (libfolly_io_async_async_base.so+0x6ecd9)
#13 folly::AtomicNotificationQueueTaskStatus folly::detail::invokeConsumerWithTask<folly::Function<void ()>, folly::EventBase::FuncRunner&, void, void, void>(folly::EventBase::FuncRunner&, folly::Function<void ()>&&, std::shared_ptr<folly::RequestContext>&&) folly/io/async/AtomicNotificationQueue-inl.h:281 (libfolly_io_async_async_base.so+0x6e45a)
#14 bool folly::AtomicNotificationQueue<folly::Function<void ()> >::drive<folly::EventBase::FuncRunner&>(folly::EventBase::FuncRunner&) folly/io/async/AtomicNotificationQueue-inl.h:339 (libfolly_io_async_async_base.so+0x6e066)
#15 bool folly::EventBaseAtomicNotificationQueue<folly::Function<void ()>, folly::EventBase::FuncRunner>::drive<folly::EventBase::FuncRunner&>(folly::EventBase::FuncRunner&) folly/io/async/EventBaseAtomicNotificationQueue-inl.h:250 (libfolly_io_async_async_base.so+0x6d9cf)
#16 folly::EventBaseAtomicNotificationQueue<folly::Function<void ()>, folly::EventBase::FuncRunner>::execute() folly/io/async/EventBaseAtomicNotificationQueue-inl.h:269 (libfolly_io_async_async_base.so+0x4c747)
#17 folly::EventBaseAtomicNotificationQueue<folly::Function<void ()>, folly::EventBase::FuncRunner>::handlerReady(unsigned short) folly/io/async/EventBaseAtomicNotificationQueue-inl.h:261 (libfolly_io_async_async_base.so+0x78194)
#18 non-virtual thunk to folly::EventBaseAtomicNotificationQueue<folly::Function<void ()>, folly::EventBase::FuncRunner>::handlerReady(unsigned short) folly/io/async/EventBaseAtomicNotificationQueue.h (libfolly_io_async_async_base.so+0x7826c)
#19 folly::EventHandler::libeventCallback(int, short, void*) folly/io/async/EventHandler.cpp:159 (libfolly_io_async_async_base.so+0x84b78)
#20 event_process_active /home/engshare/third-party2/libevent/1.4.14b_hphp/src/libevent-1.4.14b-stable/event.c:390:5 (libevent-1.4.so.2+0x8608)
#21 event_base_loop /home/engshare/third-party2/libevent/1.4.14b_hphp/src/libevent-1.4.14b-stable/event.c:532:4 (libevent-1.4.so.2+0x8608)
#22 folly::EventBase::loopMain(int, bool) folly/io/async/EventBase.cpp:400 (libfolly_io_async_async_base.so+0x49c47)
#23 folly::EventBase::loopBody(int, bool) folly/io/async/EventBase.cpp:326 (libfolly_io_async_async_base.so+0x4940f)
#24 folly::EventBase::loop() folly/io/async/EventBase.cpp:305 (libfolly_io_async_async_base.so+0x49298)
#25 folly::EventBase::loopForever() folly/io/async/EventBase.cpp:545 (libfolly_io_async_async_base.so+0x5c7bf)
#26 folly::IOThreadPoolExecutor::threadRun(std::shared_ptr<folly::ThreadPoolExecutor::Thread>) folly/executors/IOThreadPoolExecutor.cpp:250 (libfolly_executors_io_thread_pool_executor.so+0x15b72)
#27 void std::__invoke_impl<void, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&>(std::__invoke_memfun_deref, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/invoke.h:74 (libfolly_executors_thread_pool_executor.so+0x56191)
#28 std::__invoke_result<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&>::type std::__invoke<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&>(void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/invoke.h:96 (libfolly_executors_thread_pool_executor.so+0x55f07)
#29 void std::_Bind<void (folly::ThreadPoolExecutor::* (folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)>::__call<void, 0ul, 1ul>(std::tuple<>&&, std::_Index_tuple<0ul, 1ul>) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/functional:420 (libfolly_executors_thread_pool_executor.so+0x55e6a)
#30 void std::_Bind<void (folly::ThreadPoolExecutor::* (folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)>::operator()<void>() third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/functional:503 (libfolly_executors_thread_pool_executor.so+0x55dc6)
#31 void folly::detail::function::FunctionTraits<void ()>::callSmall<std::_Bind<void (folly::ThreadPoolExecutor::* (folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) folly/Function.h:363 (libfolly_executors_thread_pool_executor.so+0x55a5d)
#32 folly::detail::function::FunctionTraits<void ()>::operator()() folly/Function.h:392 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xa9603)
#33 folly::NamedThreadFactory::newThread(folly::Function<void ()>&&)::'lambda'()::operator()() folly/executors/thread_factory/NamedThreadFactory.h:40 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xa959c)
#34 void std::__invoke_impl<void, folly::NamedThreadFactory::newThread(folly::Function<void ()>&&)::'lambda'()>(std::__invoke_other, folly::NamedThreadFactory::newThread(folly::Function<void ()>&&)::'lambda'()&&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/invoke.h:61 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xa952d)
#35 std::__invoke_result<folly::NamedThreadFactory::newThread(folly::Function<void ()>&&)::'lambda'()>::type std::__invoke<folly::NamedThreadFactory::newThread(folly::Function<void ()>&&)::'lambda'()>(folly::NamedThreadFactory::newThread(folly::Function<void ()>&&)::'lambda'()&&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/invoke.h:96 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xa947d)
#36 void std::thread::_Invoker<std::tuple<folly::NamedThreadFactory::newThread(folly::Function<void ()>&&)::'lambda'()> >::_M_invoke<0ul>(std::_Index_tuple<0ul>) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/std_thread.h:253 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xa9425)
#37 std::thread::_Invoker<std::tuple<folly::NamedThreadFactory::newThread(folly::Function<void ()>&&)::'lambda'()> >::operator()() third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/std_thread.h:260 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xa93c5)
#38 std::thread::_State_impl<std::thread::_Invoker<std::tuple<folly::NamedThreadFactory::newThread(folly::Function<void ()>&&)::'lambda'()> > >::_M_run() third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/std_thread.h:211 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xa9159)
#39 execute_native_thread_routine <null> (libstdc++.so.6+0xdf2e4)
Location is heap block of size 4736 at 0x7b840000b400 allocated by main thread:
#0 operator new(unsigned long, std::align_val_t) <null> (MKAModuleTest+0x1c960b)
#1 __gnu_cxx::new_allocator<std::_Sp_counted_ptr_inplace<facebook::fboss::BidirectionalPacketStream, std::allocator<facebook::fboss::BidirectionalPacketStream>, (__gnu_cxx::_Lock_policy)2> >::allocate(unsigned long, void const*) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/ext/new_allocator.h:125 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xad076)
#2 std::allocator_traits<std::allocator<std::_Sp_counted_ptr_inplace<facebook::fboss::BidirectionalPacketStream, std::allocator<facebook::fboss::BidirectionalPacketStream>, (__gnu_cxx::_Lock_policy)2> > >::allocate(std::allocator<std::_Sp_counted_ptr_inplace<facebook::fboss::BidirectionalPacketStream, std::allocator<facebook::fboss::BidirectionalPacketStream>, (__gnu_cxx::_Lock_policy)2> >&, unsigned long) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/allocator.h:197 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xacf39)
#3 std::__allocated_ptr<std::allocator<std::_Sp_counted_ptr_inplace<facebook::fboss::BidirectionalPacketStream, std::allocator<facebook::fboss::BidirectionalPacketStream>, (__gnu_cxx::_Lock_policy)2> > > std::__allocate_guarded<std::allocator<std::_Sp_counted_ptr_inplace<facebook::fboss::BidirectionalPacketStream, std::allocator<facebook::fboss::BidirectionalPacketStream>, (__gnu_cxx::_Lock_policy)2> > >(std::allocator<std::_Sp_counted_ptr_inplace<facebook::fboss::BidirectionalPacketStream, std::allocator<facebook::fboss::BidirectionalPacketStream>, (__gnu_cxx::_Lock_policy)2> >&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/allocated_ptr.h:97 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xacb4e)
#4 std::__shared_count<(__gnu_cxx::_Lock_policy)2>::__shared_count<facebook::fboss::BidirectionalPacketStream, std::allocator<facebook::fboss::BidirectionalPacketStream>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, folly::EventBase*, folly::EventBase*, double&>(facebook::fboss::BidirectionalPacketStream*&, std::_Sp_alloc_shared_tag<std::allocator<facebook::fboss::BidirectionalPacketStream> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, folly::EventBase*&&, folly::EventBase*&&, double&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/shared_ptr_base.h:704 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xac85c)
#5 std::__shared_ptr<facebook::fboss::BidirectionalPacketStream, (__gnu_cxx::_Lock_policy)2>::__shared_ptr<std::allocator<facebook::fboss::BidirectionalPacketStream>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, folly::EventBase*, folly::EventBase*, double&>(std::_Sp_alloc_shared_tag<std::allocator<facebook::fboss::BidirectionalPacketStream> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, folly::EventBase*&&, folly::EventBase*&&, double&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/shared_ptr_base.h:1398 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xac76f)
#6 std::shared_ptr<facebook::fboss::BidirectionalPacketStream>::shared_ptr<std::allocator<facebook::fboss::BidirectionalPacketStream>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, folly::EventBase*, folly::EventBase*, double&>(std::_Sp_alloc_shared_tag<std::allocator<facebook::fboss::BidirectionalPacketStream> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, folly::EventBase*&&, folly::EventBase*&&, double&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/shared_ptr.h:409 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xac647)
#7 std::shared_ptr<facebook::fboss::BidirectionalPacketStream> std::allocate_shared<facebook::fboss::BidirectionalPacketStream, std::allocator<facebook::fboss::BidirectionalPacketStream>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, folly::EventBase*, folly::EventBase*, double&>(std::allocator<facebook::fboss::BidirectionalPacketStream> const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, folly::EventBase*&&, folly::EventBase*&&, double&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/shared_ptr.h:862 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xac4c6)
#8 std::shared_ptr<facebook::fboss::BidirectionalPacketStream> std::make_shared<facebook::fboss::BidirectionalPacketStream, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, folly::EventBase*, folly::EventBase*, double&>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, folly::EventBase*&&, folly::EventBase*&&, double&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/shared_ptr.h:878 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xa34b5)
#9 facebook::fboss::mka::MKAModule::MKAModule(bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, double, unsigned short, unsigned short, unsigned short, bool) fboss/facebook/mka_service/mka_module/MKAModule.cpp:149 (libfboss_facebook_mka_service_mka_module_mka_module.so+0xa24c0)
#10 std::_MakeUniq<facebook::fboss::mka::MKAModule>::__single_object std::make_unique<facebook::fboss::mka::MKAModule, bool, char const (&) [12], double const&, unsigned short&, unsigned short, unsigned short, bool&>(bool&&, char const (&) [12], double const&, unsigned short&, unsigned short&&, unsigned short&&, bool&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/unique_ptr.h:962 (MKAModuleTest+0x1b7f66)
#11 MKAModuleTest::startMKAModule(bool) fboss/facebook/mka_service/mka_module/tests/MKAModuleTest.cpp:129 (MKAModuleTest+0x194ff8)
#12 MKAModuleTest::SetUp() fboss/facebook/mka_service/mka_module/tests/MKAModuleTest.cpp:178 (MKAModuleTest+0x14158c)
#13 testing::Test::Run() /home/engshare/third-party2/googletest/1.11.0/src/googletest/googletest/src/gtest.cc:2677:48 (libgtest.so.1.11.0+0x50eb8)
#14 testing::Test::Run() /home/engshare/third-party2/googletest/1.11.0/src/googletest/googletest/src/gtest.cc:2672:6 (libgtest.so.1.11.0+0x50eb8)
#15 main common/gtest/LightMain.cpp:20 (libcommon_gtest_light_main.so+0x2161)
Thread T44 'mka_service' (tid=1424413, running) created by main thread at:
#0 pthread_create <null> (MKAModuleTest+0x23000d)
#1 std::thread::_M_start_thread(std::unique_ptr<std::thread::_State, std::default_delete<std::thread::_State> >, void (*)()) <null> (libstdc++.so.6+0xdf5ee)
#2 folly::ScopedEventBaseThread::ScopedEventBaseThread(folly::EventBase::Options, folly::EventBaseManager*, folly::Range<char const*>) folly/io/async/ScopedEventBaseThread.cpp:68 (libfolly_io_async_scoped_event_base_thread.so+0x86f4)
#3 folly::ScopedEventBaseThread::ScopedEventBaseThread(folly::EventBaseManager*, folly::Range<char const*>) folly/io/async/ScopedEventBaseThread.cpp:60 (…
facebook-github-bot
pushed a commit
that referenced
this issue
Aug 18, 2022
Summary:
We have a race between FsdbStreamClient::setServerToConnect() setting serverAddress_ and FsdbStreamClient::timeoutExpired() from reconnect thread checking if it has an address for us to reconnect to.
With tests from D37376542:
```
❯ buck test mode/dev-tsan //fboss/facebook/mka_service/fsdb/tests:MKAFsdbSyncerTest -- --stress-runs 10
...
Summary
Pass: 10
Fatal: 10
```
```
==================
WARNING: ThreadSanitizer: data race (pid=708956)
Read of size 2 at 0x7b4c00001c88 by thread T79:
#0 folly::SocketAddress::getPort() const folly/SocketAddress.cpp:413 (libfolly_network_address.so+0x8bfda)
#1 facebook::fboss::fsdb::FsdbStreamClient::timeoutExpired() fboss/fsdb/client/FsdbStreamClient.cpp:98 (libfboss_fsdb_client_fsdb_stream_client.so+0x2e858)
#2 facebook::fboss::fsdb::FsdbStreamClient::FsdbStreamClient(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, folly::EventBase*, folly::EventBase*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::function<void (facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)>)::$_16::operator()() const fboss/fsdb/client/FsdbStreamClient.cpp:34 (libfboss_fsdb_client_fsdb_stream_client.so+0x328e5)
#3 folly::detail::async_timeout_wrapper<facebook::fboss::fsdb::FsdbStreamClient::FsdbStreamClient(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, folly::EventBase*, folly::EventBase*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::function<void (facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)>)::$_16>::timeoutExpired() folly/io/async/AsyncTimeout.h:255 (libfboss_fsdb_client_fsdb_stream_client.so+0x3289c)
#4 folly::AsyncTimeout::libeventCallback(int, short, void*) folly/io/async/AsyncTimeout.cpp:174 (libfolly_io_async_async_base.so+0x41e6b)
#5 event_process_active /home/engshare/third-party2/libevent/1.4.14b_hphp/src/libevent-1.4.14b-stable/event.c:390:5 (libevent-1.4.so.2+0x8608)
#6 event_base_loop /home/engshare/third-party2/libevent/1.4.14b_hphp/src/libevent-1.4.14b-stable/event.c:532:4 (libevent-1.4.so.2+0x8608)
#7 folly::EventBase::loopMain(int, bool) folly/io/async/EventBase.cpp:400 (libfolly_io_async_async_base.so+0x49c47)
#8 folly::EventBase::loopBody(int, bool) folly/io/async/EventBase.cpp:326 (libfolly_io_async_async_base.so+0x4940f)
#9 folly::EventBase::loop() folly/io/async/EventBase.cpp:305 (libfolly_io_async_async_base.so+0x49298)
#10 folly::EventBase::loopForever() folly/io/async/EventBase.cpp:545 (libfolly_io_async_async_base.so+0x5c7bf)
#11 folly::run(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&) folly/io/async/ScopedEventBaseThread.cpp:40 (libfolly_io_async_scoped_event_base_thread.so+0x8b78)
#12 void std::__invoke_impl<void, void (*)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> >(std::__invoke_other, void (*&&)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*&&, folly::EventBase*&&, folly::Baton<true, std::atomic>*&&, folly::Range<char const*>&&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/invoke.h:61 (libfolly_io_async_scoped_event_base_thread.so+0x101e0)
#13 std::__invoke_result<void (*)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> >::type std::__invoke<void (*)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> >(void (*&&)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*&&, folly::EventBase*&&, folly::Baton<true, std::atomic>*&&, folly::Range<char const*>&&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/invoke.h:96 (libfolly_io_async_scoped_event_base_thread.so+0xff14)
#14 void std::thread::_Invoker<std::tuple<void (*)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> > >::_M_invoke<0ul, 1ul, 2ul, 3ul, 4ul>(std::_Index_tuple<0ul, 1ul, 2ul, 3ul, 4ul>) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/std_thread.h:253 (libfolly_io_async_scoped_event_base_thread.so+0xfe4d)
#15 std::thread::_Invoker<std::tuple<void (*)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> > >::operator()() third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/std_thread.h:260 (libfolly_io_async_scoped_event_base_thread.so+0xfd85)
#16 std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (*)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> > > >::_M_run() third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/std_thread.h:211 (libfolly_io_async_scoped_event_base_thread.so+0xf759)
#17 execute_native_thread_routine <null> (libstdc++.so.6+0xdf2e4)
Previous write of size 2 at 0x7b4c00001c88 by main thread (mutexes: write M477235840850862816):
#0 folly::SocketAddress::SocketAddress(folly::SocketAddress&&) folly/SocketAddress.h:598 (libfboss_fsdb_client_fsdb_stream_client.so+0x4ca07)
#1 void std::_Optional_base_impl<folly::SocketAddress, std::_Optional_base<folly::SocketAddress, false, false> >::_M_construct<folly::SocketAddress>(folly::SocketAddress&&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/optional:420 (libfboss_fsdb_client_fsdb_stream_client.so+0x4c70e)
#2 std::enable_if<__and_v<std::__not_<std::is_same<std::optional<folly::SocketAddress>, std::remove_cv<std::remove_reference<folly::SocketAddress>::type>::type> >, std::__not_<std::__and_<std::is_scalar<folly::SocketAddress>, std::is_same<folly::SocketAddress, std::decay<folly::SocketAddress>::type> > >, std::is_constructible<folly::SocketAddress, folly::SocketAddress>, std::is_assignable<folly::SocketAddress&, folly::SocketAddress> >, std::optional<folly::SocketAddress>&>::type std::optional<folly::SocketAddress>::operator=<folly::SocketAddress>(folly::SocketAddress&&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/optional:810 (libfboss_fsdb_client_fsdb_stream_client.so+0x4c4a6)
#3 facebook::fboss::fsdb::FsdbStreamClient::setServerToConnect(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned short, bool) fboss/fsdb/client/FsdbStreamClient.cpp:92 (libfboss_fsdb_client_fsdb_stream_client.so+0x4c2a7)
#4 auto void facebook::fboss::fsdb::FsdbPubSubManager::addSubscriptionImpl<facebook::fboss::fsdb::FsdbStateSubscriber>(std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, std::function<void (facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)>, facebook::fboss::fsdb::FsdbStateSubscriber::FsdbSubUnitUpdateCb, bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int)::'lambda'(facebook::fboss::fsdb::FsdbStateSubscriber&)::operator()<std::unordered_map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::unique_ptr<facebook::fboss::fsdb::FsdbStreamClient, std::default_delete<facebook::fboss::fsdb::FsdbStreamClient> >, std::hash<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::unique_ptr<facebook::fboss::fsdb::FsdbStreamClient, std::default_delete<facebook::fboss::fsdb::FsdbStreamClient> > > > > >(facebook::fboss::fsdb::FsdbStateSubscriber&) const fboss/fsdb/client/FsdbPubSubManager.cpp:263 (libfboss_fsdb_client_fsdb_pub_sub.so+0x155e9b)
#5 auto folly::SynchronizedBase<folly::Synchronized<std::unordered_map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::unique_ptr<facebook::fboss::fsdb::FsdbStreamClient, std::default_delete<facebook::fboss::fsdb::FsdbStreamClient> >, std::hash<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::unique_ptr<facebook::fboss::fsdb::FsdbStreamClient, std::default_delete<facebook::fboss::fsdb::FsdbStreamClient> > > > >, folly::SharedMutexImpl<false, void, std::atomic, folly::SharedMutexPolicyDefault> >, (folly::detail::SynchronizedMutexLevel)2>::withWLock<void facebook::fboss::fsdb::FsdbPubSubManager::addSubscriptionImpl<facebook::fboss::fsdb::FsdbStateSubscriber>(std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, std::function<void (facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)>, facebook::fboss::fsdb::FsdbStateSubscriber::FsdbSubUnitUpdateCb, bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int)::'lambda'(facebook::fboss::fsdb::FsdbStateSubscriber&)>(facebook::fboss::fsdb::FsdbStateSubscriber&&) folly/Synchronized.h:305 (libfboss_fsdb_client_fsdb_pub_sub.so+0x155814)
#6 void facebook::fboss::fsdb::FsdbPubSubManager::addSubscriptionImpl<facebook::fboss::fsdb::FsdbStateSubscriber>(std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, std::function<void (facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)>, facebook::fboss::fsdb::FsdbStateSubscriber::FsdbSubUnitUpdateCb, bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int) fboss/fsdb/client/FsdbPubSubManager.cpp:247 (libfboss_fsdb_client_fsdb_pub_sub.so+0x1555ae)
#7 facebook::fboss::fsdb::FsdbPubSubManager::addStatePathSubscription(std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, std::function<void (facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)>, std::function<void (facebook::fboss::fsdb::OperState&&)>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int) fboss/fsdb/client/FsdbPubSubManager.cpp:197 (libfboss_fsdb_client_fsdb_pub_sub.so+0x15539c)
#8 facebook::fboss::mka::TestSubscription<thriftpath::ChildThriftPath<facebook::fboss::mka::MkaState, facebook::fboss::fsdb::FsdbOperStateRoot, thriftpath::Path<facebook::fboss::fsdb::MkaData, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, thriftpath::Path<facebook::fboss::fsdb::FsdbOperStateRoot, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, folly::Unit> > > >::TestSubscription(facebook::fboss::fsdb::FsdbPubSubManager*, thriftpath::ChildThriftPath<facebook::fboss::mka::MkaState, facebook::fboss::fsdb::FsdbOperStateRoot, thriftpath::Path<facebook::fboss::fsdb::MkaData, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, thriftpath::Path<facebook::fboss::fsdb::FsdbOperStateRoot, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, folly::Unit> > >) fboss/facebook/mka_service/fsdb/tests/MKAFsdbTestUtils.h:57 (MKAFsdbSyncerTest+0x132899)
#9 facebook::fboss::mka::TestSubscription<thriftpath::ChildThriftPath<facebook::fboss::mka::MkaState, facebook::fboss::fsdb::FsdbOperStateRoot, thriftpath::Path<facebook::fboss::fsdb::MkaData, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, thriftpath::Path<facebook::fboss::fsdb::FsdbOperStateRoot, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, folly::Unit> > > > facebook::fboss::mka::MKAFsdbSyncerTest::subscribe<thriftpath::ChildThriftPath<facebook::fboss::mka::MkaState, facebook::fboss::fsdb::FsdbOperStateRoot, thriftpath::Path<facebook::fboss::fsdb::MkaData, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, thriftpath::Path<facebook::fboss::fsdb::FsdbOperStateRoot, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, folly::Unit> > > >(thriftpath::ChildThriftPath<facebook::fboss::mka::MkaState, facebook::fboss::fsdb::FsdbOperStateRoot, thriftpath::Path<facebook::fboss::fsdb::MkaData, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, thriftpath::Path<facebook::fboss::fsdb::FsdbOperStateRoot, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, folly::Unit> > >) fboss/facebook/mka_service/fsdb/tests/MKAFsdbSyncerTest.cpp:79 (MKAFsdbSyncerTest+0x131b37)
#10 facebook::fboss::mka::MKAFsdbSyncerTest_testSessionUpdate_Test::TestBody() fboss/facebook/mka_service/fsdb/tests/MKAFsdbSyncerTest.cpp:102 (MKAFsdbSyncerTest+0x10a03c)
#11 testing::Test::Run() /home/engshare/third-party2/googletest/1.11.0/src/googletest/googletest/src/gtest.cc:2682:50 (libgtest.so.1.11.0+0x50f35)
#12 testing::Test::Run() /home/engshare/third-party2/googletest/1.11.0/src/googletest/googletest/src/gtest.cc:2672:6 (libgtest.so.1.11.0+0x50f35)
#13 main common/gtest/LightMain.cpp:20 (libcommon_gtest_light_main.so+0x2161)
Location is heap block of size 408 at 0x7b4c00001c00 allocated by main thread:
#0 operator new(unsigned long) <null> (MKAFsdbSyncerTest+0x14143c)
#1 std::_MakeUniq<facebook::fboss::fsdb::FsdbStateSubscriber>::__single_object std::make_unique<facebook::fboss::fsdb::FsdbStateSubscriber, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, folly::EventBase*, folly::EventBase*, std::function<void (facebook::fboss::fsdb::OperState&&)>&, bool&, std::function<void (facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)>&>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, folly::EventBase*&&, folly::EventBase*&&, std::function<void (facebook::fboss::fsdb::OperState&&)>&, bool&, std::function<void (facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)>&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/unique_ptr.h:962 (libfboss_fsdb_client_fsdb_pub_sub.so+0x1560f8)
#2 auto void facebook::fboss::fsdb::FsdbPubSubManager::addSubscriptionImpl<facebook::fboss::fsdb::FsdbStateSubscriber>(std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, std::function<void (facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)>, facebook::fboss::fsdb::FsdbStateSubscriber::FsdbSubUnitUpdateCb, bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int)::'lambda'(facebook::fboss::fsdb::FsdbStateSubscriber&)::operator()<std::unordered_map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::unique_ptr<facebook::fboss::fsdb::FsdbStreamClient, std::default_delete<facebook::fboss::fsdb::FsdbStreamClient> >, std::hash<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::unique_ptr<facebook::fboss::fsdb::FsdbStreamClient, std::default_delete<facebook::fboss::fsdb::FsdbStreamClient> > > > > >(facebook::fboss::fsdb::FsdbStateSubscriber&) const fboss/fsdb/client/FsdbPubSubManager.cpp:250 (libfboss_fsdb_client_fsdb_pub_sub.so+0x155a21)
#3 auto folly::SynchronizedBase<folly::Synchronized<std::unordered_map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::unique_ptr<facebook::fboss::fsdb::FsdbStreamClient, std::default_delete<facebook::fboss::fsdb::FsdbStreamClient> >, std::hash<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::unique_ptr<facebook::fboss::fsdb::FsdbStreamClient, std::default_delete<facebook::fboss::fsdb::FsdbStreamClient> > > > >, folly::SharedMutexImpl<false, void, std::atomic, folly::SharedMutexPolicyDefault> >, (folly::detail::SynchronizedMutexLevel)2>::withWLock<void facebook::fboss::fsdb::FsdbPubSubManager::addSubscriptionImpl<facebook::fboss::fsdb::FsdbStateSubscriber>(std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, std::function<void (facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)>, facebook::fboss::fsdb::FsdbStateSubscriber::FsdbSubUnitUpdateCb, bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int)::'lambda'(facebook::fboss::fsdb::FsdbStateSubscriber&)>(facebook::fboss::fsdb::FsdbStateSubscriber&&) folly/Synchronized.h:305 (libfboss_fsdb_client_fsdb_pub_sub.so+0x155814)
#4 void facebook::fboss::fsdb::FsdbPubSubManager::addSubscriptionImpl<facebook::fboss::fsdb::FsdbStateSubscriber>(std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, std::function<void (facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)>, facebook::fboss::fsdb::FsdbStateSubscriber::FsdbSubUnitUpdateCb, bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int) fboss/fsdb/client/FsdbPubSubManager.cpp:247 (libfboss_fsdb_client_fsdb_pub_sub.so+0x1555ae)
#5 facebook::fboss::fsdb::FsdbPubSubManager::addStatePathSubscription(std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, std::function<void (facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)>, std::function<void (facebook::fboss::fsdb::OperState&&)>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int) fboss/fsdb/client/FsdbPubSubManager.cpp:197 (libfboss_fsdb_client_fsdb_pub_sub.so+0x15539c)
#6 facebook::fboss::mka::TestSubscription<thriftpath::ChildThriftPath<facebook::fboss::mka::MkaState, facebook::fboss::fsdb::FsdbOperStateRoot, thriftpath::Path<facebook::fboss::fsdb::MkaData, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, thriftpath::Path<facebook::fboss::fsdb::FsdbOperStateRoot, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, folly::Unit> > > >::TestSubscription(facebook::fboss::fsdb::FsdbPubSubManager*, thriftpath::ChildThriftPath<facebook::fboss::mka::MkaState, facebook::fboss::fsdb::FsdbOperStateRoot, thriftpath::Path<facebook::fboss::fsdb::MkaData, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, thriftpath::Path<facebook::fboss::fsdb::FsdbOperStateRoot, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, folly::Unit> > >) fboss/facebook/mka_service/fsdb/tests/MKAFsdbTestUtils.h:57 (MKAFsdbSyncerTest+0x132899)
#7 facebook::fboss::mka::TestSubscription<thriftpath::ChildThriftPath<facebook::fboss::mka::MkaState, facebook::fboss::fsdb::FsdbOperStateRoot, thriftpath::Path<facebook::fboss::fsdb::MkaData, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, thriftpath::Path<facebook::fboss::fsdb::FsdbOperStateRoot, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, folly::Unit> > > > facebook::fboss::mka::MKAFsdbSyncerTest::subscribe<thriftpath::ChildThriftPath<facebook::fboss::mka::MkaState, facebook::fboss::fsdb::FsdbOperStateRoot, thriftpath::Path<facebook::fboss::fsdb::MkaData, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, thriftpath::Path<facebook::fboss::fsdb::FsdbOperStateRoot, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, folly::Unit> > > >(thriftpath::ChildThriftPath<facebook::fboss::mka::MkaState, facebook::fboss::fsdb::FsdbOperStateRoot, thriftpath::Path<facebook::fboss::fsdb::MkaData, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, thriftpath::Path<facebook::fboss::fsdb::FsdbOperStateRoot, facebook::fboss::fsdb::FsdbOperStateRoot, apache::thrift::type_class::structure, folly::Unit> > >) fboss/facebook/mka_service/fsdb/tests/MKAFsdbSyncerTest.cpp:79 (MKAFsdbSyncerTest+0x131b37)
#8 facebook::fboss::mka::MKAFsdbSyncerTest_testSessionUpdate_Test::TestBody() fboss/facebook/mka_service/fsdb/tests/MKAFsdbSyncerTest.cpp:102 (MKAFsdbSyncerTest+0x10a03c)
#9 testing::Test::Run() /home/engshare/third-party2/googletest/1.11.0/src/googletest/googletest/src/gtest.cc:2682:50 (libgtest.so.1.11.0+0x50f35)
#10 testing::Test::Run() /home/engshare/third-party2/googletest/1.11.0/src/googletest/googletest/src/gtest.cc:2672:6 (libgtest.so.1.11.0+0x50f35)
#11 main common/gtest/LightMain.cpp:20 (libcommon_gtest_light_main.so+0x2161)
Mutex M477235840850862816 is already destroyed.
Thread T79 'FsdbReconnectTh' (tid=710754, running) created by main thread at:
#0 pthread_create <null> (MKAFsdbSyncerTest+0x1a803d)
#1 std::thread::_M_start_thread(std::unique_ptr<std::thread::_State, std::default_delete<std::thread::_State> >, void (*)()) <null> (libstdc++.so.6+0xdf5ee)
#2 folly::ScopedEventBaseThread::ScopedEventBaseThread(folly::EventBase::Options, folly::EventBaseManager*, folly::Range<char const*>) folly/io/async/ScopedEventBaseThread.cpp:68 (libfolly_io_async_scoped_event_base_thread.so+0x86f4)
#3 folly::ScopedEventBaseThread::ScopedEventBaseThread(folly::EventBaseManager*, folly::Range<char const*>) folly/io/async/ScopedEventBaseThread.cpp:60 (libfolly_io_async_scoped_event_base_thread.so+0x83ed)
#4 folly::ScopedEventBaseThread::ScopedEventBaseThread(folly::Range<char const*>) folly/io/async/ScopedEventBaseThread.cpp:53 (libfolly_io_async_scoped_event_base_thread.so+0xac91)
#5 facebook::fboss::fsdb::FsdbPubSubManager::FsdbPubSubManager(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) fboss/fsdb/client/FsdbPubSubManager.h:139 (libfboss_fsdb_client_fsdb_pub_sub.so+0x124f18)
#6 std::_MakeUniq<facebook::fboss::fsdb::FsdbPubSubManager>::__single_object std::make_unique<facebook::fboss::fsdb::FsdbPubSubManager, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/unique_ptr.h:962 (libfboss_fsdb_client_fsdb_syncer.so+0x9b52)
#7 facebook::fboss::fsdb::FsdbSyncManager::FsdbSyncManager(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&) fboss/fsdb/client/FsdbSyncManager.cpp:12 (libfboss_fsdb_client_fsdb_syncer.so+0x99d4)
#8 facebook::fboss::mka::MKAFsdbSyncManager::MKAFsdbSyncManager() fboss/facebook/mka_service/fsdb/MKAFsdbSyncManager.cpp:30 (libfboss_facebook_mka_service_fsdb_fsdb_syncer.so+0x954a5)
#9 std::_MakeUniq<facebook::fboss::mka::MKAFsdbSyncManager>::__single_object std::make_unique<facebook::fboss::mka::MKAFsdbSyncManager>() third-party-buck/platform010-compat/build/libgcc/include/c++/trunk/bits/unique_ptr.h:962 (MKAFsdbSyncerTest+0x13d1a9)
#10 facebook::fboss::mka::MKAFsdbSyncerTest::SetUp() fboss/facebook/mka_service/fsdb/tests/MKAFsdbSyncerTest.cpp:51 (MKAFsdbSyncerTest+0x108d91)
#11 testing::Test::Run() /home/engshare/third-party2/googletest/1.11.0/src/googletest/googletest/src/gtest.cc:2677:48 (libgtest.so.1.11.0+0x50eb8)
#12 testing::Test::Run() /home/engshare/third-party2/googletest/1.11.0/src/googletest/googletest/src/gtest.cc:2672:6 (libgtest.so.1.11.0+0x50eb8)
#13 main common/gtest/LightMain.cpp:20 (libcommon_gtest_light_main.so+0x2161)
ThreadSanitizer: data race folly/SocketAddress.cpp:413 in folly::SocketAddress::getPort() const
```
Reviewed By: peygar
Differential Revision: D38721759
fbshipit-source-id: 43570bd23ff2bf75cb812541ee7d022d1c012697
facebook-github-bot
pushed a commit
that referenced
this issue
Sep 21, 2022
Summary:
Our FsdbStreamClient service loop currently fails TSAN because we've been using separate thread for Thrift and service loop, which is not supported by Thrift team. As discussed in chat, this will require considerable restructuring to fix. So temporarily ignoring TSAN here for tests to pass.
```
WARNING: ThreadSanitizer: data race on vptr (ctor/dtor vs virtual call) (pid=3501845)
Write of size 8 at 0x7b3000070280 by thread T209:
#0 apache::thrift::transport::TTransportException::~TTransportException() <null> (setup_qsfp_test_bin-millenio-5.5+0x4cf57ab)
#1 void std::__exception_ptr::__dest_thunk<apache::thrift::transport::TTransportException>(void*) <null> (setup_qsfp_test_bin-millenio-5.5+0x55f1ab1)
#2 std::__exception_ptr::exception_ptr::_M_release() <null> (libstdc++.so.6+0xa193b)
#3 apache::thrift::rocket::RequestContextQueue::failAllScheduledWrites(folly::exception_wrapper) <null> (setup_qsfp_test_bin-millenio-5.5+0xae221ad)
#4 apache::thrift::rocket::RocketClient::close(folly::exception_wrapper) <null> (setup_qsfp_test_bin-millenio-5.5+0xadfbaa4)
#5 apache::thrift::rocket::Parser<apache::thrift::rocket::RocketClient>::readErr(folly::AsyncSocketException const&) <null> (setup_qsfp_test_bin-millenio-5.5+0xae1b5d6)
#6 folly::AsyncSocket::failConnect(char const*, folly::AsyncSocketException const&) <null> (setup_qsfp_test_bin-millenio-5.5+0xc2e0035)
#7 folly::AsyncSocket::handleConnect() <null> (setup_qsfp_test_bin-millenio-5.5+0xc2ebdf0)
#8 folly::AsyncSocket::handleWrite() <null> (setup_qsfp_test_bin-millenio-5.5+0xc2ea9c4)
#9 folly::AsyncSocket::ioReady(unsigned short) <null> (setup_qsfp_test_bin-millenio-5.5+0xc2e692f)
#10 folly::AsyncSocket::IoHandler::handlerReady(unsigned short) <null> (setup_qsfp_test_bin-millenio-5.5+0xc2f3320)
#11 folly::EventHandler::libeventCallback(int, short, void*) <null> (setup_qsfp_test_bin-millenio-5.5+0xc402afc)
#12 event_base_loop <null> (setup_qsfp_test_bin-millenio-5.5+0xcf5c1b8)
#13 folly::EventBase::loopMain(int, bool) <null> (setup_qsfp_test_bin-millenio-5.5+0xc3f63a7)
#14 folly::EventBase::loopForever() <null> (setup_qsfp_test_bin-millenio-5.5+0xc3fa224)
#15 folly::run(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&) <null> (setup_qsfp_test_bin-millenio-5.5+0xc361bff)
#16 std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (*)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> > > >::_M_run() <null> (setup_qsfp_test_bin-millenio-5.5+0xc36262b)
#17 execute_native_thread_routine <null> (libstdc++.so.6+0xdf2e4)
Previous read of size 8 at 0x7b3000070280 by thread T58:
#0 folly::exceptionStr(std::exception const&) <null> (setup_qsfp_test_bin-millenio-5.5+0xc63fdb3)
#1 facebook::fboss::fsdb::FsdbStreamClient::serviceLoopWrapper() (.resume) <null> (setup_qsfp_test_bin-millenio-5.5+0x4c69842)
#2 folly::resumeCoroutineWithNewAsyncStackRoot(std::__n4861::coroutine_handle<void>, folly::AsyncStackFrame&) <null> (setup_qsfp_test_bin-millenio-5.5+0xc651151)
#3 void folly::detail::function::FunctionTraits<void ()>::callSmall<folly::coro::detail::ViaCoroutinePromiseBase::scheduleContinuation()::'lambda'()>(folly::detail::function::Data&) <null> (setup_qsfp_test_bin-millenio-5.5+0x4c47168)
#4 bool folly::AtomicNotificationQueue<folly::Function<void ()> >::drive<folly::EventBase::FuncRunner&>(folly::EventBase::FuncRunner&) <null> (setup_qsfp_test_bin-millenio-5.5+0xc3fcfa2)
#5 folly::EventBaseAtomicNotificationQueue<folly::Function<void ()>, folly::EventBase::FuncRunner>::execute() <null> (setup_qsfp_test_bin-millenio-5.5+0xc3f74ac)
#6 non-virtual thunk to folly::EventBaseAtomicNotificationQueue<folly::Function<void ()>, folly::EventBase::FuncRunner>::handlerReady(unsigned short) <null> (setup_qsfp_test_bin-millenio-5.5+0xc3ff07d)
#7 folly::EventHandler::libeventCallback(int, short, void*) <null> (setup_qsfp_test_bin-millenio-5.5+0xc402afc)
#8 event_base_loop <null> (setup_qsfp_test_bin-millenio-5.5+0xcf5c1b8)
#9 folly::EventBase::loopMain(int, bool) <null> (setup_qsfp_test_bin-millenio-5.5+0xc3f63a7)
#10 folly::EventBase::loopForever() <null> (setup_qsfp_test_bin-millenio-5.5+0xc3fa224)
#11 folly::run(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&) <null> (setup_qsfp_test_bin-millenio-5.5+0xc361bff)
#12 std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (*)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> > > >::_M_run() <null> (setup_qsfp_test_bin-millenio-5.5+0xc36262b)
#13 execute_native_thread_routine <null> (libstdc++.so.6+0xdf2e4)
Location is heap block of size 184 at 0x7b3000070200 allocated by thread T209:
#0 malloc <null> (setup_qsfp_test_bin-millenio-5.5+0xd39d3c4)
#1 __cxa_allocate_exception <null> (libstdc++.so.6+0xa045c)
#2 folly::exception_wrapper::exception_wrapper<apache::thrift::transport::TTransportException, apache::thrift::transport::TTransportException, 325l>(apache::thrift::transport::TTransportException&&) <null> (setup_qsfp_test_bin-millenio-5.5+0xac66e06)
#3 apache::thrift::rocket::RequestContextQueue::failAllScheduledWrites(folly::exception_wrapper) <null> (setup_qsfp_test_bin-millenio-5.5+0xae22180)
#4 apache::thrift::rocket::RocketClient::close(folly::exception_wrapper) <null> (setup_qsfp_test_bin-millenio-5.5+0xadfbaa4)
#5 apache::thrift::rocket::Parser<apache::thrift::rocket::RocketClient>::readErr(folly::AsyncSocketException const&) <null> (setup_qsfp_test_bin-millenio-5.5+0xae1b5d6)
#6 folly::AsyncSocket::failConnect(char const*, folly::AsyncSocketException const&) <null> (setup_qsfp_test_bin-millenio-5.5+0xc2e0035)
#7 folly::AsyncSocket::handleConnect() <null> (setup_qsfp_test_bin-millenio-5.5+0xc2ebdf0)
#8 folly::AsyncSocket::handleWrite() <null> (setup_qsfp_test_bin-millenio-5.5+0xc2ea9c4)
#9 folly::AsyncSocket::ioReady(unsigned short) <null> (setup_qsfp_test_bin-millenio-5.5+0xc2e692f)
#10 folly::AsyncSocket::IoHandler::handlerReady(unsigned short) <null> (setup_qsfp_test_bin-millenio-5.5+0xc2f3320)
#11 folly::EventHandler::libeventCallback(int, short, void*) <null> (setup_qsfp_test_bin-millenio-5.5+0xc402afc)
#12 event_base_loop <null> (setup_qsfp_test_bin-millenio-5.5+0xcf5c1b8)
#13 folly::EventBase::loopMain(int, bool) <null> (setup_qsfp_test_bin-millenio-5.5+0xc3f63a7)
#14 folly::EventBase::loopForever() <null> (setup_qsfp_test_bin-millenio-5.5+0xc3fa224)
#15 folly::run(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&) <null> (setup_qsfp_test_bin-millenio-5.5+0xc361bff)
#16 std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (*)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> > > >::_M_run() <null> (setup_qsfp_test_bin-millenio-5.5+0xc36262b)
#17 execute_native_thread_routine <null> (libstdc++.so.6+0xdf2e4)
Thread T209 'qsfp_service' (tid=3503104, running) created by thread T56 at:
#0 pthread_create <null> (setup_qsfp_test_bin-millenio-5.5+0xd3d5c0d)
#1 std::thread::_M_start_thread(std::unique_ptr<std::thread::_State, std::default_delete<std::thread::_State> >, void (*)()) <null> (libstdc++.so.6+0xdf5ee)
#2 folly::ScopedEventBaseThread::ScopedEventBaseThread(folly::Range<char const*>) <null> (setup_qsfp_test_bin-millenio-5.5+0xc362370)
#3 facebook::fboss::fsdb::FsdbStreamClient::FsdbStreamClient(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, folly::EventBase*, folly::EventBase*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::function<void (facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)>) <null> (setup_qsfp_test_bin-millenio-5.5+0x4c628b6)
#4 facebook::fboss::fsdb::FsdbPublisher<facebook::fboss::fsdb::OperState>::FsdbPublisher(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, folly::EventBase*, folly::EventBase*, bool, std::function<void (facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)>) <null> (setup_qsfp_test_bin-millenio-5.5+0x4c3b669)
#5 std::unique_ptr<facebook::fboss::fsdb::FsdbStatePublisher, std::default_delete<facebook::fboss::fsdb::FsdbStatePublisher> > facebook::fboss::fsdb::FsdbPubSubManager::createPublisherImpl<facebook::fboss::fsdb::FsdbStatePublisher>(std::lock_guard<std::mutex> const&, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, bool, std::function<void (facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)>, int) const <null> (setup_qsfp_test_bin-millenio-5.5+0x4c3b05d)
#6 facebook::fboss::fsdb::FsdbPubSubManager::createStatPathPublisher(std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, std::function<void (facebook::fboss::fsdb::FsdbStreamClient::State, facebook::fboss::fsdb::FsdbStreamClient::State)>, int) <null> (setup_qsfp_test_bin-millenio-5.5+0x4c3e585)
#7 facebook::fboss::fsdb::FsdbSyncManager::start() <null> (setup_qsfp_test_bin-millenio-5.5+0x4c35212)
#8 void folly::detail::function::FunctionTraits<void (folly::futures::detail::CoreBase&, folly::Executor::KeepAlive<folly::Executor>&&, folly::exception_wrapper*)>::callSmall<void folly::futures::detail::Core<std::vector<folly::Try<folly::Unit>, std::allocator<folly::Try<folly::Unit> > > >::setCallback<std::enable_if<!(folly::Future<folly::futures::detail::tryCallableResult<std::vector<folly::Try<folly::Unit>, std::allocator<folly::Try<folly::Unit> > >, facebook::fboss::WedgeManager::WedgeManager(std::unique_ptr<facebook::fboss::TransceiverPlatformApi, std::default_delete<facebook::fboss::TransceiverPlatformApi> >, std::unique_ptr<facebook::fboss::PlatformMapping, std::default_delete<facebook::fboss::PlatformMapping> >, facebook::fboss::PlatformMode)::$_0, std::enable_if<is_invocable_v<facebook::fboss::WedgeManager::WedgeManager(std::unique_ptr<facebook::fboss::TransceiverPlatformApi, std::default_delete<facebook::fboss::TransceiverPlatformApi> >, std::unique_ptr<facebook::fboss::PlatformMapping, std::default_delete<facebook::fboss::PlatformMapping> >, facebook::fboss::PlatformMode)::$_0, folly::Try<std::vector<folly::Try<folly::Unit>, std::allocator<folly::Try<folly::Unit> > > >&&>, void>::type>::value_type> folly::Future<std::vector<folly::Try<folly::Unit>, std::allocator<folly::Try<folly::Unit> > > >::thenTry<facebook::fboss::WedgeManager::WedgeManager(std::unique_ptr<facebook::fboss::TransceiverPlatformApi, std::default_delete<facebook::fboss::TransceiverPlatformApi> >, std::unique_ptr<facebook::fboss::PlatformMapping, std::default_delete<facebook::fboss::PlatformMapping> >, facebook::fboss::PlatformMode)::$_0>(facebook::fboss::WedgeManager::WedgeManager(std::unique_ptr<facebook::fboss::TransceiverPlatformApi, std::default_delete<facebook::fboss::TransceiverPlatformApi> >, std::unique_ptr<facebook::fboss::PlatformMapping, std::default_delete<facebook::fboss::PlatformMapping> >, facebook::fboss::PlatformMode)::$_0&&) &&::'lambda'(folly::Executor::KeepAlive<folly::Executor>&&, folly::Try<std::vector<folly::Try<folly::Unit>, std::allocator<folly::Try<folly::Unit> > > >&&)::ReturnsFuture::value), folly::Future<folly::futures::detail::tryCallableResult<std::vector<folly::Try<folly::Unit>, std::allocator<folly::Try<folly::Unit> > >, facebook::fboss::WedgeManager::WedgeManager(std::unique_ptr<facebook::fboss::TransceiverPlatformApi, std::default_delete<facebook::fboss::TransceiverPlatformApi> >, std::unique_ptr<facebook::fboss::PlatformMapping, std::default_delete<facebook::fboss::PlatformMapping> >, facebook::fboss::PlatformMode)::$_0, std::enable_if<is_invocable_v<facebook::fboss::WedgeManager::WedgeManager(std::unique_ptr<facebook::fboss::TransceiverPlatformApi, std::default_delete<facebook::fboss::TransceiverPlatformApi> >, std::unique_ptr<facebook::fboss::PlatformMapping, std::default_delete<facebook::fboss::PlatformMapping> >, facebook::fboss::PlatformMode)::$_0, folly::Try<std::vector<folly::Try<folly::Unit>, std::allocator<folly::Try<folly::Unit> > > >&&>, void>::type>::value_type> folly::Future<std::vector<folly::Try<folly::Unit>, std::allocator<folly::Try<folly::Unit> > > >::thenTry<facebook::fboss::WedgeManager::WedgeManager(std::unique_ptr<facebook::fboss::TransceiverPlatformApi, std::default_delete<facebook::fboss::TransceiverPlatformApi> >, std::unique_ptr<facebook::fboss::PlatformMapping, std::default_delete<facebook::fboss::PlatformMapping> >, facebook::fboss::PlatformMode)::$_0>(facebook::fboss::WedgeManager::WedgeManager(std::unique_ptr<facebook::fboss::TransceiverPlatformApi, std::default_delete<facebook::fboss::TransceiverPlatformApi> >, std::unique_ptr<facebook::fboss::PlatformMapping, std::default_delete<facebook::fboss::PlatformMapping> >, facebook::fboss::PlatformMode)::$_0&&) &&::'lambda'(folly::Executor::KeepAlive<folly::Executor>&&, folly::Try<std::vector<folly::Try<folly::Unit>, std::allocator<folly::Try<folly::Unit> > > >&&)::Return>::type folly::futures::detail::FutureBase<std::vector<folly::Try<folly::Unit>, std::allocator<folly::Try<folly::Unit> > > >::thenImplementation<folly::Future<folly::futures::detail::tryCallableResult<std::vector<folly::Try<folly::Unit>, std::allocator<folly::Try<folly::Unit> > >, facebook::fboss::WedgeManager::WedgeManager(std::unique_ptr<facebook::fboss::TransceiverPlatformApi, std::default_delete<facebook::fboss::TransceiverPlatformApi> >, std::unique_ptr<facebook::fboss::PlatformMapping, std::default_delete<facebook::fboss::PlatformMapping> >, facebook::fboss::PlatformMode)::$_0, std::enable_if<is_invocable_v<facebook::fboss::WedgeManager::WedgeManager(std::unique_ptr<facebook::fboss::TransceiverPlatformApi, std::default_delete<facebook::fboss::TransceiverPlatformApi> >, std::unique_ptr<facebook::fboss::PlatformMapping, std::default_delete<facebook::fboss::PlatformMapping> >, facebook::fboss::PlatformMode)::$_0, folly::Try<std::vector<folly::Try<folly::Unit>, std::allocator<folly::Try<folly::Unit> > > >&&>, void>::type>::value_type> folly::Future<std::vector<folly::Try<folly::Unit>, std::allocator<folly::Try<folly::Unit> > > >::thenTry<facebook::fboss::WedgeManager::WedgeManager(std::unique_ptr<facebook::fboss::TransceiverPlatformApi, std::default_delete<facebook::fboss::TransceiverPlatformApi> >, std::unique_ptr<facebook::fboss::PlatformMapping, std::default_delete<facebook::fboss::PlatformMapping> >, facebook::fboss::PlatformMode)::$_0>(facebook::fboss::WedgeManager::WedgeManager(std::unique_ptr<facebook::fboss::TransceiverPlatformApi, std::default_delete<facebook::fboss::TransceiverPlatformApi> >, std::unique_ptr<facebook::fboss::PlatformMapping, std::default_delete<facebook::fboss::PlatformMapping> >, facebook::fboss::PlatformMode)::$_0&&) &&::'lambda'(folly::Executor::KeepAlive<folly::Executor>&&, folly::Try<std::vector<folly::Try<folly::Unit>, std::allocator<folly::Try<folly::Unit> > > >&&), folly::futures::detail::tryExecutorCallableResult<std::vector<folly::Try<folly::Unit>, std::allocator<folly::Try<folly::Unit> > >, folly::Future<folly::futures::detail::tryCallableResult<std::vector<folly::Try<folly::Unit>, std::allocator<folly::Try<folly::Unit> > >, facebook::fboss::WedgeManager::WedgeManager(std::unique_ptr<facebook::fboss::TransceiverPlatformApi, std::default_delete<facebook::fboss::TransceiverPlatformApi> >, std::unique_ptr<facebook::fboss::PlatformMapping, std::default_delete<facebook::fboss::PlatformMapping> >, facebook::fboss::PlatformMode)::$_0, std::enable_if<is_invocable_v<facebook::fboss::WedgeManager::WedgeManager(std::unique_ptr<facebook::fboss::TransceiverPlatformApi, std::default_delete<facebook::fboss::TransceiverPlatformApi> >, std::unique_ptr<facebook::fboss::PlatformMapping, std::default_delete<facebook::fboss::PlatformMapping> >, facebook::fboss::PlatformMode)::$_0, folly::Try<std::vector<folly::Try<folly::Unit>, std::allocator<folly::Try<folly::Unit> > > >&&>, void>::type>::value_type> folly::Future<std::vector<folly::Try<folly::Unit>, std::allocator<folly::Try<folly::Unit> > > >::thenTry<facebook::fboss::WedgeManager::WedgeManager(std::unique_ptr<facebook::fboss::TransceiverPlatformApi, std::default_delete<facebook::fboss::TransceiverPlatformApi> >, std::unique_ptr<facebook::fboss::PlatformMapping, std::default_delete<facebook::fboss::PlatformMapping> >, facebook::fboss::PlatformMode)::$_0>(facebook::fboss::WedgeManager::WedgeManager(std::unique_ptr<facebook::fboss::TransceiverPlatformApi, std::default_delete<facebook::fboss::TransceiverPlatformApi> >, std::unique_ptr<facebook::fboss::PlatformMapping, std::default_delete<facebook::fboss::PlatformMapping> >, facebook::fboss::PlatformMode)::$_0&&) &&::'lambda'(folly::Executor::KeepAlive<folly::Executor>&&, folly::Try<std::vector<folly::Try<folly::Unit>, std::allocator<folly::Try<folly::Unit> > > >&&), void> >(facebook::fboss::WedgeManager::WedgeManager(std::unique_ptr<facebook::fboss::TransceiverPlatformApi, std::default_delete<facebook::fboss::TransceiverPlatformApi> >, std::unique_ptr<facebook::fboss::PlatformMapping, std::default_delete<facebook::fboss::PlatformMapping> >, facebook::fboss::PlatformMode)::$_0&&, folly::Future<folly::futures::detail::tryCallableResult<std::vector<folly::Try<folly::Unit>, std::allocator<folly::Try<folly::Unit> > >, facebook::fboss::WedgeManager::WedgeManager(std::unique_ptr<facebook::fboss::TransceiverPlatformApi, std::default_delete<facebook::fboss::TransceiverPlatformApi> >, std::unique_ptr<facebook::fboss::PlatformMapping, std::default_delete<facebook::fboss::PlatformMapping> >, facebook::fboss::PlatformMode)::$_0, std::enable_if<is_invocable_v<facebook::fboss::WedgeManager::WedgeManager(std::unique_ptr<facebook::fboss::TransceiverPlatformApi, std::default_delete<facebook::fboss::TransceiverPlatformApi> >, std::unique_ptr<facebook::fboss::PlatformMapping, std::default_delete<facebook::fboss::PlatformMapping> >, facebook::fboss::PlatformMode)::$_0, folly::Try<std::vector<folly::Try<folly::Unit>, std::allocator<folly::Try<folly::Unit> > > >&&>, void>::type>::value_type> folly::Future<std::vector<folly::Try<folly::Unit>, std::allocator<folly::Try<folly::Unit> > > >::thenTry<facebook::fboss::WedgeManager::WedgeManager(std::unique_ptr<facebook::fboss::TransceiverPlatformApi, std::default_delete<facebook::fboss::TransceiverPlatformApi> >, std::unique_ptr<facebook::fboss::PlatformMapping, std::default_delete<facebook::fboss::PlatformMapping> >, facebook::fboss::PlatformMode)::$_0>(facebook::fboss::WedgeManager::WedgeManager(std::unique_ptr<facebook::fboss::TransceiverPlatformApi, std::default_delete<facebook::fboss::TransceiverPlatformApi> >, std::unique_ptr<facebook::fboss::PlatformMapping, std::default_delete<facebook::fboss::PlatformMapping> >, facebook::fboss::PlatformMode)::$_0&&) &&::'lambda'(folly::Executor::KeepAlive<folly::Executor>&&, folly::Try<std::vector<folly::Try<folly::Unit>, std::allocator<folly::Try<folly::Unit> > > >&&), folly::futures::detail::InlineContinuation)::'lambda'(folly::Executor::KeepAlive<folly::Executor>&&, folly::Try<std::vector<folly::Try<folly::Unit>, std::allocator<folly::Try<folly::Unit> > > >&&)>(facebook::fboss::WedgeManager::WedgeManager(std::unique_ptr<facebook::fboss::TransceiverPlatformApi, std::default_delete<facebook::fboss::TransceiverPlatformApi> >, std::unique_ptr<facebook::fboss::PlatformMapping, std::default_delete<facebook::fboss::PlatformMapping> >, facebook::fboss::PlatformMode)::$_0&&, std::shared_ptr<folly::RequestContext>&&, folly::futures::detail::InlineContinuation)::'lambda'(folly::futures::detail::CoreBase&, folly::Executor::KeepAlive<folly::Executor>&&, folly::exception_wrapper*)>(folly::futures::detail::CoreBase&, folly::Executor::KeepAlive<folly::Executor>&&, folly::exception_wrapper*, folly::detail::function::Data&) <null> (setup_qsfp_test_bin-millenio-5.5+0x3fa2bda)
#9 void folly::detail::function::FunctionTraits<void ()>::callSmall<void folly::Executor::KeepAlive<folly::Executor>::add<folly::futures::detail::CoreBase::doCallback(folly::Executor::KeepAlive<folly::Executor>&&, folly::futures::detail::State)::$_0>(folly::futures::detail::CoreBase::doCallback(folly::Executor::KeepAlive<folly::Executor>&&, folly::futures::detail::State)::$_0&&) &&::'lambda'()>(folly::detail::function::Data&) <null> (setup_qsfp_test_bin-millenio-5.5+0xc410445)
#10 folly::EventBase::FunctionLoopCallback::runLoopCallback() <null> (setup_qsfp_test_bin-millenio-5.5+0xc3fb315)
#11 folly::EventBase::runLoopCallbacks() <null> (setup_qsfp_test_bin-millenio-5.5+0xc3f5590)
#12 folly::EventBase::loopMain(int, bool) <null> (setup_qsfp_test_bin-millenio-5.5+0xc3f63b9)
#13 folly::EventBase::loopForever() <null> (setup_qsfp_test_bin-millenio-5.5+0xc3fa224)
#14 folly::run(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&) <null> (setup_qsfp_test_bin-millenio-5.5+0xc361bff)
#15 std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (*)(folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> const&), folly::EventBaseManager*, folly::EventBase*, folly::Baton<true, std::atomic>*, folly::Range<char const*> > > >::_M_run() <null> (setup_qsfp_test_bin-millenio-5.5+0xc36262b)
#16 execute_native_thread_routine <null> (libstdc++.so.6+0xdf2e4)
Thread T58 'FsdbStatsPublis' (tid=3501909, running) created by main thread at:
#0 pthread_create <null> (setup_qsfp_test_bin-millenio-5.5+0xd3d5c0d)
#1 std::thread::_M_start_thread(std::unique_ptr<std::thread::_State, std::default_delete<std::thread::_State> >, void (*)()) <null> (libstdc++.so.6+0xdf5ee)
#2 folly::ScopedEventBaseThread::ScopedEventBaseThread(folly::Range<char const*>) <null> (setup_qsfp_test_bin-millenio-5.5+0xc362370)
#3 facebook::fboss::fsdb::FsdbPubSubManager::FsdbPubSubManager(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) <null> (setup_qsfp_test_bin-millenio-5.5+0x4c368b2)
#4 facebook::fboss::fsdb::FsdbSyncManager::FsdbSyncManager(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&) <null> (setup_qsfp_test_bin-millenio-5.5+0x4c34d3a)
#5 facebook::fboss::QsfpFsdbSyncManager::QsfpFsdbSyncManager() <null> (setup_qsfp_test_bin-millenio-5.5+0x4c303d8)
#6 facebook::fboss::WedgeManager::WedgeManager(std::unique_ptr<facebook::fboss::TransceiverPlatformApi, std::default_delete<facebook::fboss::TransceiverPlatformApi> >, std::unique_ptr<facebook::fboss::PlatformMapping, std::default_delete<facebook::fboss::PlatformMapping> >, facebook::fboss::PlatformMode) <null> (setup_qsfp_test_bin-millenio-5.5+0x3f9c26f)
#7 facebook::fboss::Minipack16QManager::Minipack16QManager() <null> (setup_qsfp_test_bin-millenio-5.5+0x3fff408)
#8 facebook::fboss::createFBWedgeManager(std::unique_ptr<facebook::fboss::PlatformProductInfo, std::default_delete<facebook::fboss::PlatformProductInfo> >) <null> (setup_qsfp_test_bin-millenio-5.5+0x3fbfa1c)
#9 facebook::fboss::createWedgeManager() <null> (setup_qsfp_test_bin-millenio-5.5+0x4008efe)
#10 facebook::fboss::HwQsfpEnsemble::init() <null> (setup_qsfp_test_bin-millenio-5.5+0x3f87775)
#11 facebook::fboss::HwTest::SetUp() <null> (setup_qsfp_test_bin-millenio-5.5+0x3f7624e)
#12 void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) <null> (setup_qsfp_test_bin-millenio-5.5+0xc71b5cf)
#13 __libc_start_call_main <null> (libc.so.6+0x2c656)
```
Reviewed By: peygar
Differential Revision: D39152941
fbshipit-source-id: ed2351d691340eb5c1ca486fa7066b1a33f1411b
facebook-github-bot
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Dec 20, 2022
Summary: This is the first diff of the stack that adds a speed change test. The overall idea for the test is - 1. Create a copy of the config, and modify the speeds in the original config in the cold boot iteration. Need to modify the original config and not the copy so that the trunk step of prod->trunk->prod warm boots with the new speeds 2. Verify link sanity 3. Revert back the config at the end of warm boot iteration so that the next test works with the original config. This diff adds helper functions to do #1. Next diff adds #2 and #3. Reviewed By: rajank7 Differential Revision: D40725414 Privacy Context Container: L1125642 fbshipit-source-id: 83e4206db5bd9140ea5194909257ea8f2dec162e
facebook-github-bot
pushed a commit
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Feb 10, 2023
Summary: Fixes the following TSAN data race - ``` Write of size 8 at 0x7b8400009888 by thread T40 (mutexes: write M507916304074681368, read M61215687833552496): #0 facebook::fboss::QsfpModule::markLastDownTime() fboss/qsfp_service/module/QsfpModule.cpp:951 (qsfp_service+0x206ea68) #1 facebook::fboss::TransceiverManager::markLastDownTime(facebook::fboss::TransceiverID) fboss/qsfp_service/TransceiverManager.cpp:1279 (qsfp_service+0x2143c4a) #2 void facebook::fboss::markLastDownTime_impl::operator()<facebook::fboss::ALL_PORTS_DOWN_helper Previous read of size 8 at 0x7b8400009888 by thread T75 (mutexes: read M61215687833552496, write M401237648678623312): #0 facebook::fboss::QsfpModule::shouldRemediateLocked() fboss/qsfp_service/module/QsfpModule.cpp:649 (qsfp_service+0x206dbeb) #1 facebook::fboss::QsfpModule::shouldRemediate()::$_36::operator()() const fboss/qsfp_service/module/QsfpModule.cpp:590 (qsfp_service+0x20722b0) #2 facebook::fboss::QsfpModule::shouldRemediate() fboss/qsfp_service/module/QsfpModule.cpp:596 (qsfp_service+0x20722b0) #3 facebook::fboss::TransceiverManager::triggerRemediateEvents(std::vector<facebook::fboss::TransceiverID, std::allocator<facebook::fboss::TransceiverID> > const&) fboss/qsfp_service/TransceiverManager.cpp:1257 (qsfp_service+0x212d79a) #4 facebook::fboss::TransceiverManager::refreshStateMachines() fboss/qsfp_service/TransceiverManager.cpp:978 (qsfp_service+0x2142a52) ``` Reviewed By: rajank7 Differential Revision: D43183960 Privacy Context Container: L1125642 fbshipit-source-id: 9169d1ea2f03db86cbfa20b9f3e615b0871ea2ec
arajeev-ARISTA
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Sep 26, 2023
Pull upstream changes from 2/13/2023
facebook-github-bot
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May 25, 2024
Summary: Fixes the following TSAN error. isExiting_ is accessed by different threads ``` May 24 20:13:06 fboss323865747.snc1.facebook.com qsfp_service_for_testing[2492898]: WARNING: ThreadSanitizer: data race (pid=2492898) May 24 20:13:06 fboss323865747.snc1.facebook.com qsfp_service_for_testing[2492898]: Read of size 1 at 0x7b6400047670 by thread T105: May 24 20:13:06 fboss323865747.snc1.facebook.com qsfp_service_for_testing[2492898]: #0 facebook::fboss::TransceiverManager::updateState(std::unique_ptr<facebook::fboss::TransceiverStateMachineUpdate, std::default_delete<facebook::fboss::TransceiverStateMachineUpdate>>) <null> (qsfp_service+0x3ebb67e) (BuildId: b2acbcaa66db571598102646487722e03e26433d) May 24 20:13:06 fboss323865747.snc1.facebook.com qsfp_service_for_testing[2492898]: #1 facebook::fboss::TransceiverManager::updateStateBlockingWithoutWait(facebook::fboss::TransceiverID, facebook::fboss::TransceiverStateMachineEvent) <null> (qsfp_service+0x3ebb0d9) (BuildId: b2acbcaa66db571598102646487722e03e26433d) May 24 20:13:06 fboss323865747.snc1.facebook.com qsfp_service_for_testing[2492898]: #2 facebook::fboss::TransceiverManager::triggerProgrammingEvents() <null> (qsfp_service+0x3ebdc71) (BuildId: b2acbcaa66db571598102646487722e03e26433d) May 24 20:13:06 fboss323865747.snc1.facebook.com qsfp_service_for_testing[2492898]: #3 facebook::fboss::TransceiverManager::refreshStateMachines() <null> (qsfp_service+0x3ed0f97) (BuildId: b2acbcaa66db571598102646487722e03e26433d) May 24 20:13:06 fboss323865747.snc1.facebook.com qsfp_service_for_testing[2492898]: #4 void folly::detail::function::call_<main::$_1, true, false, void>(folly::detail::function::Data&) <null> (qsfp_service+0x2ae3ed1) (BuildId: b2acbcaa66db571598102646487722e03e26433d) May 24 20:13:06 fboss323865747.snc1.facebook.com qsfp_service_for_testing[2492898]: #5 folly::FunctionScheduler::runOneFunction(std::unique_lock<std::mutex>&, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l>>>) <null> (qsfp_service+0x2b99dce) (BuildId: b2acbcaa66db571598102646487722e03e26433d) May 24 20:13:06 fboss323865747.snc1.facebook.com qsfp_service_for_testing[2492898]: #6 folly::FunctionScheduler::run() <null> (qsfp_service+0x2b999ce) (BuildId: b2acbcaa66db571598102646487722e03e26433d) May 24 20:13:06 fboss323865747.snc1.facebook.com qsfp_service_for_testing[2492898]: #7 std::thread::_State_impl<std::thread::_Invoker<std::tuple<folly::FunctionScheduler::start()::$_2>>>::_M_run() <null> (qsfp_service+0x2b996b3) (BuildId: b2acbcaa66db571598102646487722e03e26433d) May 24 20:13:06 fboss323865747.snc1.facebook.com qsfp_service_for_testing[2492898]: #8 execute_native_thread_routine <null> (libstdc++.so.6+0xdf2e4) (BuildId: a70ae4d21aeb1a5dc28aa714c5135b5d4bf393c9) May 24 20:13:06 fboss323865747.snc1.facebook.com qsfp_service_for_testing[2492898]: Previous write of size 1 at 0x7b6400047670 by main thread: May 24 20:13:06 fboss323865747.snc1.facebook.com qsfp_service_for_testing[2492898]: #0 facebook::fboss::QsfpServiceSignalHandler::signalReceived(int) <null> (qsfp_service+0x2aecacf) (BuildId: b2acbcaa66db571598102646487722e03e26433d) May 24 20:13:06 fboss323865747.snc1.facebook.com qsfp_service_for_testing[2492898]: #1 folly::AsyncSignalHandler::libeventCallback(int, short, void*) <null> (qsfp_service+0x5d857d9) (BuildId: b2acbcaa66db571598102646487722e03e26433d) ``` Reviewed By: rajank7 Differential Revision: D57809004 Privacy Context Container: L1125642 fbshipit-source-id: 92efcd54b676a14badabe32ef86faf039a246fdb
|
Any chance of an update on buck support? It'd be nice to get the speed and parallelization advantages from buck on this project. |
facebook-github-bot
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Feb 12, 2025
Summary:
Test cases from different platform failed with this stack trace:
```
==12772==ERROR: AddressSanitizer: SEGV on unknown address 0x0000000015b0 (pc 0x00004dfe8a72 bp 0x7ffd4ede0f70 sp 0x7ffd4ede0f50 T0)
==12772==The signal is caused by a READ memory access.
SCARINESS: 20 (wild-addr-read)
#0 0x4dfe8a72 in facebook::fboss::SwAgentInitializer::stopAgent(bool, bool) (/tmp/sai_setup_bin-11.7.0.0_dnx_odp+0x4dfe8a72) (BuildId: 0479bd9c683c0ce782f9ddd67f7bdff48e35ef9e)
#1 0x59304e1a in facebook::fboss::MonoAgentEnsemble::~MonoAgentEnsemble() (/tmp/sai_setup_bin-11.7.0.0_dnx_odp+0x59304e1a) (BuildId: 0479bd9c683c0ce782f9ddd67f7bdff48e35ef9e)
#2 0x59303b5d in facebook::fboss::MonoAgentEnsemble::~MonoAgentEnsemble() (/tmp/sai_setup_bin-11.7.0.0_dnx_odp+0x59303b5d) (BuildId: 0479bd9c683c0ce782f9ddd67f7bdff48e35ef9e)
#3 0x5930574e in facebook::fboss::createAgentEnsemble(std::function<facebook::fboss::cfg::SwitchConfig (facebook::fboss::AgentEnsemble const&)>, bool, std::function<void (facebook::fboss::cfg::SwitchConfig const&, facebook::fboss::cfg::PlatformConfig&)>, unsigned int, bool) (/tmp/sai_setup_bin-11.7.0.0_dnx_odp+0x5930574e) (BuildId: 0479bd9c683c0ce782f9ddd67f7bdff48e35ef9e)
#4 0x59293da3 in facebook::fboss::AgentHwTest::SetUp() (/tmp/sai_setup_bin-11.7.0.0_dnx_odp+0x59293da3) (BuildId: 0479bd9c683c0ce782f9ddd67f7bdff48e35ef9e)
#5 0x171a104d in void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) (/tmp/sai_setup_bin-11.7.0.0_dnx_odp+0x171a104d) (BuildId: 0479bd9c683c0ce782f9ddd67f7bdff48e35ef9e)
```
J3: https://www.internalfb.com/sandcastle/workflow/1301540292316074160/artifact/actionlog.1301540292424123608.stderr.1?selectedLines=922-931-1-3
TH4:
https://www.internalfb.com/phabricator/paste/view/P1730442738
This can happens once exception in [createSwitch](https://www.internalfb.com/code/fbsource/[812e06694e40e840e99ed1c57e2816a2c90cbba9]/fbcode/fboss/agent/test/AgentEnsemble.cpp?lines=70), then ASAN/stack unwinding put memory error in the log and skipped the true issue (null pointer).
Add pointer check here so we can log the error in createSwitch
Reviewed By: vasantspatil
Differential Revision:
D69540697
Privacy Context Container: L1125642
fbshipit-source-id: 240e813b78f37a235e54a47bf4515cc54fdfeb68
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Buck has support for C++, so it would be awesome if BUCK files were provided instead of CMake files.
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