Automated fix for refs/heads/create-pull-request/patch-50b02da #9
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Bradshawz
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Jun 11, 2025
…haned (grpc#37683) Sample race - https://btx.cloud.google.com/invocations/0c4e65f2-3a38-4b4f-b67e-c53a4a4650ea/targets/%2F%2Ftest%2Fcore%2Fend2end:connectivity_test@poller%3Dpoll;config=2aed862ff4fd4384687d63aa95df415c7cb955355c2ab6dc6c6d7a9d123a76ec/log ``` WARNING: ThreadSanitizer: data race (pid=18) Write of size 8 at 0x72300000c318 by thread T29: #0 grpc_core::Chttp2ServerListener* std::__exchange(grpc_core::Chttp2ServerListener*&, grpc_core::Chttp2ServerListener*&) /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/move.h:152:13 (libsrc_Score_Slibgrpc_Utransport_Uchttp2_Userver.so+0x68c85) #1 grpc_core::Chttp2ServerListener* std::exchange(grpc_core::Chttp2ServerListener*&, grpc_core::Chttp2ServerListener*&) /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/utility:287:14 (libsrc_Score_Slibgrpc_Utransport_Uchttp2_Userver.so+0x68c05) #2 grpc_core::RefCountedPtr::reset(grpc_core::Chttp2ServerListener*) /proc/self/cwd/./src/core/lib/gprpp/ref_counted_ptr.h:126:20 (libsrc_Score_Slibgrpc_Utransport_Uchttp2_Userver.so+0x68b32) #3 grpc_core::RefCountedPtr::operator=(grpc_core::RefCountedPtr&&) /proc/self/cwd/./src/core/lib/gprpp/ref_counted_ptr.h:66:5 (libsrc_Score_Slibgrpc_Utransport_Uchttp2_Userver.so+0x54380) #4 grpc_core::Chttp2ServerListener::ActiveConnection::Start(grpc_core::RefCountedPtr, std::unique_ptr, grpc_core::ChannelArgs const&) /proc/self/cwd/src/core/ext/transport/chttp2/server/chttp2_server.cc:615:13 (libsrc_Score_Slibgrpc_Utransport_Uchttp2_Userver.so+0x48914) #5 grpc_core::Chttp2ServerListener::OnAccept(void*, grpc_endpoint*, grpc_pollset*, grpc_tcp_server_acceptor*) /proc/self/cwd/src/core/ext/transport/chttp2/server/chttp2_server.cc:881:21 (libsrc_Score_Slibgrpc_Utransport_Uchttp2_Userver.so+0x49ce2) #6 CreateEventEngineListener(grpc_tcp_server*, grpc_closure*, grpc_event_engine::experimental::EndpointConfig const&, grpc_tcp_server**)::$_2::operator()(std::unique_ptr>, grpc_event_engine::experimental::MemoryAllocator) const /proc/self/cwd/src/core/lib/iomgr/tcp_server_posix.cc:228:11 (liblibiomgr.so+0xef627) #7 decltype(std::declval()(std::declval>>(), std::declval())) absl::lts_20240116::base_internal::Callable::Invoke>, grpc_event_engine::experimental::MemoryAllocator>(CreateEventEngineListener(grpc_tcp_server*, grpc_closure*, grpc_event_engine::experimental::EndpointConfig const&, grpc_tcp_server**)::$_2&, std::unique_ptr>&&, grpc_event_engine::experimental::MemoryAllocator&&) /proc/self/cwd/external/com_google_absl/absl/base/internal/invoke.h:185:12 (liblibiomgr.so+0xef3c2) #8 decltype(Invoker>, grpc_event_engine::experimental::MemoryAllocator>::type::Invoke(std::declval(), std::declval>>(), std::declval())) absl::lts_20240116::base_internal::invoke>, grpc_event_engine::experimental::MemoryAllocator>(CreateEventEngineListener(grpc_tcp_server*, grpc_closure*, grpc_event_engine::experimental::EndpointConfig const&, grpc_tcp_server**)::$_2&, std::unique_ptr>&&, grpc_event_engine::experimental::MemoryAllocator&&) /proc/self/cwd/external/com_google_absl/absl/base/internal/invoke.h:212:10 (liblibiomgr.so+0xef325) #9 void absl::lts_20240116::internal_any_invocable::InvokeR>, grpc_event_engine::experimental::MemoryAllocator, void>(CreateEventEngineListener(grpc_tcp_server*, grpc_closure*, grpc_event_engine::experimental::EndpointConfig const&, grpc_tcp_server**)::$_2&, std::unique_ptr>&&, grpc_event_engine::experimental::MemoryAllocator&&) /proc/self/cwd/external/com_google_absl/absl/functional/internal/any_invocable.h:132:3 (liblibiomgr.so+0xef2b5) #10 void absl::lts_20240116::internal_any_invocable::LocalInvoker>, grpc_event_engine::experimental::MemoryAllocator>(absl::lts_20240116::internal_any_invocable::TypeErasedState*, absl::lts_20240116::internal_any_invocable::ForwardedParameter>>::type, absl::lts_20240116::internal_any_invocable::ForwardedParameter::type) /proc/self/cwd/external/com_google_absl/absl/functional/internal/any_invocable.h:310:10 (liblibiomgr.so+0xef1e2) #11 absl::lts_20240116::internal_any_invocable::Impl>, grpc_event_engine::experimental::MemoryAllocator)>::operator()(std::unique_ptr>, grpc_event_engine::experimental::MemoryAllocator) /proc/self/cwd/external/com_google_absl/absl/functional/internal/any_invocable.h:868:1 (libsrc_Score_Slibposix_Uevent_Uengine.so+0xa754f) #12 grpc_event_engine::experimental::ThreadyEventEngine::CreateListener(absl::lts_20240116::AnyInvocable>, grpc_event_engine::experimental::MemoryAllocator)>, absl::lts_20240116::AnyInvocable, grpc_event_engine::experimental::EndpointConfig const&, std::unique_ptr>)::$_0::operator()(std::unique_ptr>, grpc_event_engine::experimental::MemoryAllocator) const::'lambda'()::operator()() /proc/self/cwd/src/core/lib/event_engine/thready_event_engine/thready_event_engine.cc:61:15 (libsrc_Score_Slibthready_Uevent_Uengine.so+0x27cdb) #13 decltype(std::declval>, grpc_event_engine::experimental::MemoryAllocator)>, absl::lts_20240116::AnyInvocable, grpc_event_engine::experimental::EndpointConfig const&, std::unique_ptr>)::$_0::operator()(std::unique_ptr>, grpc_event_engine::experimental::MemoryAllocator) const::'lambda'()&>()()) absl::lts_20240116::base_internal::Callable::Invoke>, grpc_event_engine::experimental::MemoryAllocator)>, absl::lts_20240116::AnyInvocable, grpc_event_engine::experimental::EndpointConfig const&, std::unique_ptr>)::$_0::operator()(std::unique_ptr>, grpc_event_engine::experimental::MemoryAllocator) const::'lambda'()&>(grpc_event_engine::experimental::ThreadyEventEngine::CreateListener(absl::lts_20240116::AnyInvocable>, grpc_event_engine::experimental::MemoryAllocator)>, absl::lts_20240116::AnyInvocable, grpc_event_engine::experimental::EndpointConfig const&, std::unique_ptr>)::$_0::operator()(std::unique_ptr>, grpc_event_engine::experimental::MemoryAllocator) const::'lambda'()&) /proc/self/cwd/external/com_google_absl/absl/base/internal/invoke.h:185:12 (libsrc_Score_Slibthready_Uevent_Uengine.so+0x27c45) #14 decltype(Invoker>, grpc_event_engine::experimental::MemoryAllocator)>, absl::lts_20240116::AnyInvocable, grpc_event_engine::experimental::EndpointConfig const&, std::unique_ptr>)::$_0::operator()(std::unique_ptr>, grpc_event_engine::experimental::MemoryAllocator) const::'lambda'()&>::type::Invoke(std::declval>, grpc_event_engine::experimental::MemoryAllocator)>, absl::lts_20240116::AnyInvocable, grpc_event_engine::experimental::EndpointConfig const&, std::unique_ptr>)::$_0::operator()(std::unique_ptr>, grpc_event_engine::experimental::MemoryAllocator) const::'lambda'()&>())) absl::lts_20240116::base_internal::invoke>, grpc_event_engine::experimental::MemoryAllocator)>, absl::lts_20240116::AnyInvocable, grpc_event_engine::experimental::EndpointConfig const&, std::unique_ptr>)::$_0::operator()(std::unique_ptr>, grpc_event_engine::experimental::MemoryAllocator) const::'lambda'()&>(grpc_event_engine::experimental::ThreadyEventEngine::CreateListener(absl::lts_20240116::AnyInvocable>, grpc_event_engine::experimental::MemoryAllocator)>, absl::lts_20240116::AnyInvocable, grpc_event_engine::experimental::EndpointConfig const&, std::unique_ptr>)::$_0::operator()(std::unique_ptr>, grpc_event_engine::experimental::MemoryAllocator) const::'lambda'()&) /proc/self/cwd/external/com_google_absl/absl/base/internal/invoke.h:212:10 (libsrc_Score_Slibthready_Uevent_Uengine.so+0x27bf5) #15 void absl::lts_20240116::internal_any_invocable::InvokeR>, grpc_event_engine::experimental::MemoryAllocator)>, absl::lts_20240116::AnyInvocable, grpc_event_engine::experimental::EndpointConfig const&, std::unique_ptr>)::$_0::operator()(std::unique_ptr>, grpc_event_engine::experimental::MemoryAllocator) const::'lambda'()&, void>(grpc_event_engine::experimental::ThreadyEventEngine::CreateListener(absl::lts_20240116::AnyInvocable>, grpc_event_engine::experimental::MemoryAllocator)>, absl::lts_20240116::AnyInvocable, grpc_event_engine::experimental::EndpointConfig const&, std::unique_ptr>)::$_0::operator()(std::unique_ptr>, grpc_event_engine::experimental::MemoryAllocator) const::'lambda'()&) /proc/self/cwd/external/com_google_absl/absl/functional/internal/any_invocable.h:132:3 (libsrc_Score_Slibthready_Uevent_Uengine.so+0x27ba5) #16 void absl::lts_20240116::internal_any_invocable::RemoteInvoker>, grpc_event_engine::experimental::MemoryAllocator)>, absl::lts_20240116::AnyInvocable, grpc_event_engine::experimental::EndpointConfig const&, std::unique_ptr>)::$_0::operator()(std::unique_ptr>, grpc_event_engine::experimental::MemoryAllocator) const::'lambda'()&>(absl::lts_20240116::internal_any_invocable::TypeErasedState*) /proc/self/cwd/external/com_google_absl/absl/functional/internal/any_invocable.h:368:10 (libsrc_Score_Slibthready_Uevent_Uengine.so+0x279cd) #17 absl::lts_20240116::internal_any_invocable::Impl::operator()() /proc/self/cwd/external/com_google_absl/absl/functional/internal/any_invocable.h:868:1 (libtest_Score_Send2end_Slibconnectivity_Ulibrary.so+0x337ff) #18 grpc_core::Thread::Thread(char const*, absl::lts_20240116::AnyInvocable, bool*, grpc_core::Thread::Options const&)::'lambda'(void*)::operator()(void*) const /proc/self/cwd/./src/core/lib/gprpp/thd.h:108:15 (libsrc_Score_Slibthready_Uevent_Uengine.so+0x2e264) grpc#19 grpc_core::Thread::Thread(char const*, absl::lts_20240116::AnyInvocable, bool*, grpc_core::Thread::Options const&)::'lambda'(void*)::__invoke(void*) /proc/self/cwd/./src/core/lib/gprpp/thd.h:105:13 (libsrc_Score_Slibthready_Uevent_Uengine.so+0x2e1e9) grpc#20 grpc_core::(anonymous namespace)::ThreadInternalsPosix::ThreadInternalsPosix(char const*, void (*)(void*), void*, bool*, grpc_core::Thread::Options const&)::'lambda'(void*)::operator()(void*) const /proc/self/cwd/src/core/lib/gprpp/posix/thd.cc:148:11 (liblibgpr.so+0x1d830) grpc#21 grpc_core::(anonymous namespace)::ThreadInternalsPosix::ThreadInternalsPosix(char const*, void (*)(void*), void*, bool*, grpc_core::Thread::Options const&)::'lambda'(void*)::__invoke(void*) /proc/self/cwd/src/core/lib/gprpp/posix/thd.cc:118:9 (liblibgpr.so+0x1d659) Previous read of size 8 at 0x72300000c318 by main thread: #0 grpc_core::RefCountedPtr::operator!=(std::nullptr_t) const /proc/self/cwd/./src/core/lib/gprpp/ref_counted_ptr.h:192:50 (libsrc_Score_Slibgrpc_Utransport_Uchttp2_Userver.so+0x52345) #1 grpc_core::Chttp2ServerListener::ActiveConnection::HandshakingState::~HandshakingState() /proc/self/cwd/src/core/ext/transport/chttp2/server/chttp2_server.cc:394:30 (libsrc_Score_Slibgrpc_Utransport_Uchttp2_Userver.so+0x463ed) #2 std::enable_if::value, grpc_core::Chttp2ServerListener::ActiveConnection::HandshakingState*>::type grpc_event_engine::experimental::MemoryAllocator::New, grpc_pollset*&, std::unique_ptr, grpc_core::ChannelArgs const&>(grpc_core::RefCountedPtr&&, grpc_pollset*&, std::unique_ptr&&, grpc_core::ChannelArgs const&)::Wrapper::~Wrapper() /proc/self/cwd/include/grpc/event_engine/memory_allocator.h:117:65 (libsrc_Score_Slibgrpc_Utransport_Uchttp2_Userver.so+0x67a1c) #3 std::enable_if::value, grpc_core::Chttp2ServerListener::ActiveConnection::HandshakingState*>::type grpc_event_engine::experimental::MemoryAllocator::New, grpc_pollset*&, std::unique_ptr, grpc_core::ChannelArgs const&>(grpc_core::RefCountedPtr&&, grpc_pollset*&, std::unique_ptr&&, grpc_core::ChannelArgs const&)::Wrapper::~Wrapper() /proc/self/cwd/include/grpc/event_engine/memory_allocator.h:117:27 (libsrc_Score_Slibgrpc_Utransport_Uchttp2_Userver.so+0x67a59) #4 void grpc_core::UnrefDelete::operator()(grpc_core::Chttp2ServerListener::ActiveConnection::HandshakingState*) const /proc/self/cwd/./src/core/lib/gprpp/ref_counted.h:224:5 (libsrc_Score_Slibgrpc_Utransport_Uchttp2_Userver.so+0x6449d) #5 grpc_core::InternallyRefCounted::Unref() /proc/self/cwd/./src/core/lib/gprpp/orphanable.h:132:7 (libsrc_Score_Slibgrpc_Utransport_Uchttp2_Userver.so+0x52581) #6 grpc_core::Chttp2ServerListener::ActiveConnection::HandshakingState::Orphan() /proc/self/cwd/src/core/ext/transport/chttp2/server/chttp2_server.cc:407:3 (libsrc_Score_Slibgrpc_Utransport_Uchttp2_Userver.so+0x466ac) #7 void grpc_core::OrphanableDelete::operator()(grpc_core::Chttp2ServerListener::ActiveConnection::HandshakingState*) /proc/self/cwd/./src/core/lib/gprpp/orphanable.h:60:8 (libsrc_Score_Slibgrpc_Utransport_Uchttp2_Userver.so+0x653b1) #8 std::unique_ptr::~unique_ptr() /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/unique_ptr.h:292:4 (libsrc_Score_Slibgrpc_Utransport_Uchttp2_Userver.so+0x53ddf) #9 grpc_core::Chttp2ServerListener::ActiveConnection::Orphan() /proc/self/cwd/src/core/ext/transport/chttp2/server/chttp2_server.cc:581:1 (libsrc_Score_Slibgrpc_Utransport_Uchttp2_Userver.so+0x487db) #10 void grpc_core::OrphanableDelete::operator()(grpc_core::Chttp2ServerListener::ActiveConnection*) /proc/self/cwd/./src/core/lib/gprpp/orphanable.h:60:8 (libsrc_Score_Slibgrpc_Utransport_Uchttp2_Userver.so+0x66b01) #11 std::unique_ptr::~unique_ptr() /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/unique_ptr.h:292:4 (libsrc_Score_Slibgrpc_Utransport_Uchttp2_Userver.so+0x53d1f) #12 std::pair>::~pair() /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/stl_pair.h:208:12 (libsrc_Score_Slibgrpc_Utransport_Uchttp2_Userver.so+0x597f9) #13 void __gnu_cxx::new_allocator>>>::destroy>>(std::pair>*) /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/ext/new_allocator.h:152:10 (libsrc_Score_Slibgrpc_Utransport_Uchttp2_Userver.so+0x597c1) #14 void std::allocator_traits>>>>::destroy>>(std::allocator>>>&, std::pair>*) /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/alloc_traits.h:496:8 (libsrc_Score_Slibgrpc_Utransport_Uchttp2_Userver.so+0x59725) #15 std::_Rb_tree>, std::_Select1st>>, std::less, std::allocator>>>::_M_destroy_node(std::_Rb_tree_node>>*) /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/stl_tree.h:642:2 (libsrc_Score_Slibgrpc_Utransport_Uchttp2_Userver.so+0x59674) #16 std::_Rb_tree>, std::_Select1st>>, std::less, std::allocator>>>::_M_drop_node(std::_Rb_tree_node>>*) /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/stl_tree.h:650:2 (libsrc_Score_Slibgrpc_Utransport_Uchttp2_Userver.so+0x595f9) #17 std::_Rb_tree>, std::_Select1st>>, std::less, std::allocator>>>::_M_erase(std::_Rb_tree_node>>*) /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/stl_tree.h:1920:4 (libsrc_Score_Slibgrpc_Utransport_Uchttp2_Userver.so+0x5945f) #18 std::_Rb_tree>, std::_Select1st>>, std::less, std::allocator>>>::~_Rb_tree() /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/stl_tree.h:1000:9 (libsrc_Score_Slibgrpc_Utransport_Uchttp2_Userver.so+0x593c5) grpc#19 std::map, std::less, std::allocator>>>::~map() /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/stl_map.h:300:22 (libsrc_Score_Slibgrpc_Utransport_Uchttp2_Userver.so+0x51525) grpc#20 grpc_core::Chttp2ServerListener::Orphan() /proc/self/cwd/src/core/ext/transport/chttp2/server/chttp2_server.cc:923:1 (libsrc_Score_Slibgrpc_Utransport_Uchttp2_Userver.so+0x4b5dd) grpc#21 void grpc_core::OrphanableDelete::operator()(grpc_core::Server::ListenerInterface*) /proc/self/cwd/./src/core/lib/gprpp/orphanable.h:60:8 (libsrc_Score_Slibchaotic_Ugood_Userver.so+0x1d0981) grpc#22 std::unique_ptr::reset(grpc_core::Server::ListenerInterface*) /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/unique_ptr.h:402:4 (liblibserver.so+0x1d5c21) grpc#23 grpc_core::Server::StopListening() /proc/self/cwd/src/core/server/server.cc:1211:23 (liblibserver.so+0x1b9c62) grpc#24 grpc_core::Server::ShutdownAndNotify(grpc_completion_queue*, void*) /proc/self/cwd/src/core/server/server.cc:1195:3 (liblibserver.so+0x1b97da) grpc#25 grpc_server_shutdown_and_notify /proc/self/cwd/src/core/server/server.cc:1829:37 (liblibserver.so+0x1bf212) grpc#26 grpc_core::CoreEnd2endTest::ShutdownServerAndNotify(int) /proc/self/cwd/./test/core/end2end/end2end_tests.h:459:5 (libtest_Score_Send2end_Slibconnectivity_Ulibrary.so+0x33370) grpc#27 grpc_core::(anonymous namespace)::CoreEnd2endTest_RetryHttp2Test_ConnectivityWatch::RunTest() /proc/self/cwd/test/core/end2end/tests/connectivity.cc:74:3 (libtest_Score_Send2end_Slibconnectivity_Ulibrary.so+0x2ee8d) grpc#28 grpc_core::(anonymous namespace)::CoreEnd2endTest_RetryHttp2Test_ConnectivityWatch::TestBody() /proc/self/cwd/test/core/end2end/tests/connectivity.cc:32:1 (libtest_Score_Send2end_Slibconnectivity_Ulibrary.so+0x2dc96) grpc#29 void testing::internal::HandleSehExceptionsInMethodIfSupported(testing::Test*, void (testing::Test::*)(), char const*) /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2612:10 (libexternal_Scom_Ugoogle_Ugoogletest_Slibgtest.so+0x16d2dc) grpc#30 void testing::internal::HandleExceptionsInMethodIfSupported(testing::Test*, void (testing::Test::*)(), char const*) /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2648:14 (libexternal_Scom_Ugoogle_Ugoogletest_Slibgtest.so+0x14a51d) grpc#31 testing::Test::Run() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2687:5 (libexternal_Scom_Ugoogle_Ugoogletest_Slibgtest.so+0x120458) grpc#32 testing::TestInfo::Run() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2836:11 (libexternal_Scom_Ugoogle_Ugoogletest_Slibgtest.so+0x1215f3) grpc#33 testing::TestSuite::Run() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:3015:30 (libexternal_Scom_Ugoogle_Ugoogletest_Slibgtest.so+0x12230c) grpc#34 testing::internal::UnitTestImpl::RunAllTests() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:5921:44 (libexternal_Scom_Ugoogle_Ugoogletest_Slibgtest.so+0x138142) grpc#35 bool testing::internal::HandleSehExceptionsInMethodIfSupported(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2612:10 (libexternal_Scom_Ugoogle_Ugoogletest_Slibgtest.so+0x17508f) grpc#36 bool testing::internal::HandleExceptionsInMethodIfSupported(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2648:14 (libexternal_Scom_Ugoogle_Ugoogletest_Slibgtest.so+0x14e5b3) grpc#37 testing::UnitTest::Run() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:5485:10 (libexternal_Scom_Ugoogle_Ugoogletest_Slibgtest.so+0x13795b) grpc#38 RUN_ALL_TESTS() /proc/self/cwd/external/com_google_googletest/googletest/include/gtest/gtest.h:2316:73 (libtest_Score_Send2end_Slibend2end_Utest_Umain.so+0x8457) grpc#39 main /proc/self/cwd/test/core/end2end/end2end_test_main.cc:50:10 (libtest_Score_Send2end_Slibend2end_Utest_Umain.so+0x77b6) ``` We start the connection outside the critical region and that's where we supply the listener ref to the connection. There is a freak case where the connection can be orphaned due to the listener stopping to serve and the `Orphan()` would also be trying to access the listener ref resulting in a race. Closes grpc#37683 COPYBARA_INTEGRATE_REVIEW=grpc#37683 from yashykt:FixChttp2ServerRace e3c4529 PiperOrigin-RevId: 681552145
Bradshawz
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Jun 11, 2025
Remove tcp_tracer in chttp2_transport since it's unused and buggy. Fix for TSAN failure (similar to grpc#38728) - https://btx.cloud.google.com/invocations/97eb07c8-cf0c-4c26-a0c4-e7417adb1f23/targets/%2F%2Ftest%2Fcpp%2Fext%2Fotel:otel_tracing_test@poller%3Dpoll;config=1a7b8f82b5a4a85323c9dfbac159b038ad684a9dcca8ab0ce8fe99aa87dd2da2/log ``` WARNING: ThreadSanitizer: data race (pid=15) Read of size 8 at 0x726c00001588 by thread T44: #0 GetContext /proc/self/cwd/./src/core/lib/resource_quota/arena.h:296:9 (liblibgrpc_Utransport_Uchttp2.so+0x30af6e) #1 (anonymous namespace)::TcpTracerIfSampled(grpc_chttp2_stream*) /proc/self/cwd/src/core/ext/transport/chttp2/transport/chttp2_transport.cc:243:17 (liblibgrpc_Utransport_Uchttp2.so+0x30af6e) #2 perform_stream_op_locked(void*, absl::lts_20240722::Status) /proc/self/cwd/src/core/ext/transport/chttp2/transport/chttp2_transport.cc:1655:19 (liblibgrpc_Utransport_Uchttp2.so+0x3014aa) #3 grpc_combiner_continue_exec_ctx() /proc/self/cwd/src/core/lib/iomgr/combiner.cc:216:5 (liblibexec_Uctx.so+0x10d7e) #4 grpc_core::ExecCtx::Flush() /proc/self/cwd/src/core/lib/iomgr/exec_ctx.cc:77:17 (liblibexec_Uctx.so+0x16e45) #5 queue_offload(grpc_core::Combiner*)::$_0::operator()() const /proc/self/cwd/src/core/lib/iomgr/combiner.cc:165:14 (liblibexec_Uctx.so+0x13092) #6 void std::__invoke_impl(std::__invoke_other, queue_offload(grpc_core::Combiner*)::$_0&) /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/invoke.h:60:14 (liblibexec_Uctx.so+0x13005) #7 std::__invoke_result::type std::__invoke(queue_offload(grpc_core::Combiner*)::$_0&) /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/invoke.h:95:14 (liblibexec_Uctx.so+0x12fb5) #8 std::invoke_result::type std::invoke(queue_offload(grpc_core::Combiner*)::$_0&) /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/functional:81:14 (liblibexec_Uctx.so+0x12f65) #9 void absl::lts_20240722::internal_any_invocable::InvokeR(queue_offload(grpc_core::Combiner*)::$_0&) /proc/self/cwd/external/com_google_absl/absl/functional/internal/any_invocable.h:132:3 (liblibexec_Uctx.so+0x12f05) #10 void absl::lts_20240722::internal_any_invocable::LocalInvoker(absl::lts_20240722::internal_any_invocable::TypeErasedState*) /proc/self/cwd/external/com_google_absl/absl/functional/internal/any_invocable.h:310:10 (liblibexec_Uctx.so+0x12e22) #11 absl::lts_20240722::internal_any_invocable::Impl::operator()() /proc/self/cwd/external/com_google_absl/absl/functional/internal/any_invocable.h:868:1 (libsrc_Score_Slibping_Ucallbacks.so+0x260bf) #12 grpc_event_engine::experimental::SelfDeletingClosure::Run() /proc/self/cwd/./src/core/lib/event_engine/common_closures.h:54:5 (libsrc_Score_Slibevent_Uengine_Uthread_Upool.so+0x501bd) #13 grpc_event_engine::experimental::WorkStealingThreadPool::ThreadState::Step() /proc/self/cwd/src/core/lib/event_engine/thread_pool/work_stealing_thread_pool.cc:524:14 (libsrc_Score_Slibevent_Uengine_Uthread_Upool.so+0x4a949) #14 grpc_event_engine::experimental::WorkStealingThreadPool::ThreadState::ThreadBody() /proc/self/cwd/src/core/lib/event_engine/thread_pool/work_stealing_thread_pool.cc:487:10 (libsrc_Score_Slibevent_Uengine_Uthread_Upool.so+0x4a013) #15 grpc_event_engine::experimental::WorkStealingThreadPool::WorkStealingThreadPoolImpl::StartThread()::$_0::operator()(void*) const /proc/self/cwd/src/core/lib/event_engine/thread_pool/work_stealing_thread_pool.cc:257:17 (libsrc_Score_Slibevent_Uengine_Uthread_Upool.so+0x4b489) #16 grpc_event_engine::experimental::WorkStealingThreadPool::WorkStealingThreadPoolImpl::StartThread()::$_0::__invoke(void*) /proc/self/cwd/src/core/lib/event_engine/thread_pool/work_stealing_thread_pool.cc:255:7 (libsrc_Score_Slibevent_Uengine_Uthread_Upool.so+0x4b429) #17 grpc_core::(anonymous namespace)::ThreadInternalsPosix::ThreadInternalsPosix(char const*, void (*)(void*), void*, bool*, grpc_core::Thread::Options const&)::'lambda'(void*)::operator()(void*) const /proc/self/cwd/src/core/util/posix/thd.cc:145:11 (liblibgpr.so+0x1c2e0) #18 grpc_core::(anonymous namespace)::ThreadInternalsPosix::ThreadInternalsPosix(char const*, void (*)(void*), void*, bool*, grpc_core::Thread::Options const&)::'lambda'(void*)::__invoke(void*) /proc/self/cwd/src/core/util/posix/thd.cc:115:9 (liblibgpr.so+0x1c109) Previous write of size 8 at 0x726c00001588 by thread T47: #0 void grpc_core::Arena::SetContext(grpc_core::CallTracerInterface*) /proc/self/cwd/./src/core/lib/resource_quota/arena.h:305:10 (liblibgrpc_Uclient_Uchannel.so+0x5ac294) #1 grpc_core::(anonymous namespace)::CreateCallAttemptTracer(grpc_core::Arena*, bool) /proc/self/cwd/src/core/client_channel/client_channel_filter.cc:2388:10 (liblibgrpc_Uclient_Uchannel.so+0x58403c) #2 grpc_core::ClientChannelFilter::LoadBalancedCall::LoadBalancedCall(grpc_core::ClientChannelFilter*, grpc_core::Arena*, absl::lts_20240722::AnyInvocable, bool) /proc/self/cwd/src/core/client_channel/client_channel_filter.cc:2402:11 (liblibgrpc_Uclient_Uchannel.so+0x583a98) #3 grpc_core::ClientChannelFilter::FilterBasedLoadBalancedCall::FilterBasedLoadBalancedCall(grpc_core::ClientChannelFilter*, grpc_call_element_args const&, grpc_polling_entity*, grpc_closure*, absl::lts_20240722::AnyInvocable, bool) /proc/self/cwd/src/core/client_channel/client_channel_filter.cc:2628:7 (liblibgrpc_Uclient_Uchannel.so+0x5864d4) #4 grpc_core::ClientChannelFilter::FilterBasedLoadBalancedCall* grpc_core::Arena::New, bool&>(grpc_core::ClientChannelFilter*&&, grpc_call_element_args const&, grpc_polling_entity*&, grpc_closure*&, absl::lts_20240722::AnyInvocable&&, bool&) /proc/self/cwd/./src/core/lib/resource_quota/arena.h:181:13 (liblibgrpc_Uclient_Uchannel.so+0x59459d) #5 grpc_core::ClientChannelFilter::CreateLoadBalancedCall(grpc_call_element_args const&, grpc_polling_entity*, grpc_closure*, absl::lts_20240722::AnyInvocable, bool) /proc/self/cwd/src/core/client_channel/client_channel_filter.cc:1142:19 (liblibgrpc_Uclient_Uchannel.so+0x578343) #6 grpc_core::RetryFilter::LegacyCallData::CreateLoadBalancedCall(absl::lts_20240722::AnyInvocable, bool) /proc/self/cwd/src/core/client_channel/retry_filter_legacy_call_data.cc:1635:36 (liblibgrpc_Uclient_Uchannel.so+0x5f3954) #7 grpc_core::RetryFilter::LegacyCallData::CallAttempt::CallAttempt(grpc_core::RetryFilter::LegacyCallData*, bool) /proc/self/cwd/src/core/client_channel/retry_filter_legacy_call_data.cc:129:21 (liblibgrpc_Uclient_Uchannel.so+0x5f2de1) #8 grpc_core::RefCountedPtr grpc_core::MakeRefCounted(grpc_core::RetryFilter::LegacyCallData*&&, bool&) /proc/self/cwd/./src/core/util/ref_counted_ptr.h:369:31 (liblibgrpc_Uclient_Uchannel.so+0x60ad6a) #9 grpc_core::RetryFilter::LegacyCallData::CreateCallAttempt(bool) /proc/self/cwd/src/core/client_channel/retry_filter_legacy_call_data.cc:1644:19 (liblibgrpc_Uclient_Uchannel.so+0x605a9b) #10 grpc_core::RetryFilter::LegacyCallData::StartTransparentRetry(void*, absl::lts_20240722::Status) /proc/self/cwd/src/core/client_channel/retry_filter_legacy_call_data.cc:1937:12 (liblibgrpc_Uclient_Uchannel.so+0x60600b) #11 exec_ctx_run(grpc_closure*) /proc/self/cwd/src/core/lib/iomgr/exec_ctx.cc:43:3 (liblibexec_Uctx.so+0x17536) #12 grpc_core::ExecCtx::Flush() /proc/self/cwd/src/core/lib/iomgr/exec_ctx.cc:74:9 (liblibexec_Uctx.so+0x16e29) #13 grpc_core::ExecCtx::~ExecCtx() /proc/self/cwd/./src/core/lib/iomgr/exec_ctx.h:137:5 (liblibgrpc++_Ubase.so+0x1647cc) #14 grpc_core::WorkSerializer::WorkSerializerImpl::Run() /proc/self/cwd/src/core/util/work_serializer.cc:221:1 (liblibwork_Userializer.so+0x15947) #15 non-virtual thunk to grpc_core::WorkSerializer::WorkSerializerImpl::Run() /proc/self/cwd/src/core/util/work_serializer.cc (liblibwork_Userializer.so+0x15b09) #16 grpc_event_engine::experimental::WorkStealingThreadPool::ThreadState::Step() /proc/self/cwd/src/core/lib/event_engine/thread_pool/work_stealing_thread_pool.cc:524:14 (libsrc_Score_Slibevent_Uengine_Uthread_Upool.so+0x4a949) #17 grpc_event_engine::experimental::WorkStealingThreadPool::ThreadState::ThreadBody() /proc/self/cwd/src/core/lib/event_engine/thread_pool/work_stealing_thread_pool.cc:487:10 (libsrc_Score_Slibevent_Uengine_Uthread_Upool.so+0x4a013) #18 grpc_event_engine::experimental::WorkStealingThreadPool::WorkStealingThreadPoolImpl::StartThread()::$_0::operator()(void*) const /proc/self/cwd/src/core/lib/event_engine/thread_pool/work_stealing_thread_pool.cc:257:17 (libsrc_Score_Slibevent_Uengine_Uthread_Upool.so+0x4b489) grpc#19 grpc_event_engine::experimental::WorkStealingThreadPool::WorkStealingThreadPoolImpl::StartThread()::$_0::__invoke(void*) /proc/self/cwd/src/core/lib/event_engine/thread_pool/work_stealing_thread_pool.cc:255:7 (libsrc_Score_Slibevent_Uengine_Uthread_Upool.so+0x4b429) grpc#20 grpc_core::(anonymous namespace)::ThreadInternalsPosix::ThreadInternalsPosix(char const*, void (*)(void*), void*, bool*, grpc_core::Thread::Options const&)::'lambda'(void*)::operator()(void*) const /proc/self/cwd/src/core/util/posix/thd.cc:145:11 (liblibgpr.so+0x1c2e0) grpc#21 grpc_core::(anonymous namespace)::ThreadInternalsPosix::ThreadInternalsPosix(char const*, void (*)(void*), void*, bool*, grpc_core::Thread::Options const&)::'lambda'(void*)::__invoke(void*) /proc/self/cwd/src/core/util/posix/thd.cc:115:9 (liblibgpr.so+0x1c109) ``` Assumed sequence of events (based on stacktrace) - * The client application creates a new RPC. * A ClientChannelFilter::LoadBalancedCall is created for the first attempt. * A CallAttemptTracer is created for this first attempt and a pointer to this is saved on the arena context. * The first attempt fails without any bytes having been sent on the wire, making this RPC eligible for transparent retries. * A new ClientChannelFilter::LoadBalancedCall created for this new attempt. * A new CallAttemptTracer is created for this second (transparent) attempt and a pointer is saved on the arena context. * Around the same time as a new CallAttemptTracer is created, the chttp2 transport is performing some operations for the first stream (for example, a cancel op). Closes grpc#39015 COPYBARA_INTEGRATE_REVIEW=grpc#39015 from yashykt:FixTcpTracer 7e3746e PiperOrigin-RevId: 739343300
Bradshawz
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Jun 11, 2025
This fixes a bug introduced in grpc#39736 whereby the LRS server may call `StartWrite()` after cancellation has already called `Finish()`, thus leading to a TSAN failure. This is arguably a deficiency in the callback API. The write should definitely fail, but it shouldn't cause a TSAN problem. But we can consider that as part of a separate effort. Example stack trace of the TSAN failure: ``` WARNING: ThreadSanitizer: data race (pid=17) Read of size 1 at 0x72680002dd80 by thread T5: #0 grpc::internal::CallbackBidiHandler::ServerCallbackReaderWriterImpl::Finish(grpc::Status) /proc/self/cwd/include/grpcpp/impl/server_callback_handlers.h:742:18 (xds_cluster_end2end_test@poller=epoll1+0x32896b2) #1 grpc::ServerBidiReactor::Finish(grpc::Status) /proc/self/cwd/include/grpcpp/support/server_callback.h:414:13 (xds_cluster_end2end_test@poller=epoll1+0x328dbb4) #2 grpc::testing::LrsServiceImpl::Reactor::OnCancel() /proc/self/cwd/test/cpp/end2end/xds/xds_server.cc:494:3 (xds_cluster_end2end_test@poller=epoll1+0x32c6ec1) #3 grpc::internal::ServerCallbackCall::CallOnCancel(grpc::internal::ServerReactor*)::$_0::operator()() const /proc/self/cwd/src/cpp/server/server_callback.cc:38:14 (xds_cluster_end2end_test@poller=epoll1+0x3b4755b) #4 void std::__invoke_impl(std::__invoke_other, grpc::internal::ServerCallbackCall::CallOnCancel(grpc::internal::ServerReactor*)::$_0&) /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/invoke.h:60:14 (xds_cluster_end2end_test@poller=epoll1+0x3b474d5) #5 std::__invoke_result::type std::__invoke(grpc::internal::ServerCallbackCall::CallOnCancel(grpc::internal::ServerReactor*)::$_0&) /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/invoke.h:95:14 (xds_cluster_end2end_test@poller=epoll1+0x3b47485) #6 std::invoke_result::type std::invoke(grpc::internal::ServerCallbackCall::CallOnCancel(grpc::internal::ServerReactor*)::$_0&) /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/functional:81:14 (xds_cluster_end2end_test@poller=epoll1+0x3b47435) #7 void absl::lts_20250127::internal_any_invocable::InvokeR(grpc::internal::ServerCallbackCall::CallOnCancel(grpc::internal::ServerReactor*)::$_0&) /proc/self/cwd/external/com_google_absl/absl/functional/internal/any_invocable.h:132:3 (xds_cluster_end2end_test@poller=epoll1+0x3b473d5) #8 void absl::lts_20250127::internal_any_invocable::LocalInvoker(absl::lts_20250127::internal_any_invocable::TypeErasedState*) /proc/self/cwd/external/com_google_absl/absl/functional/internal/any_invocable.h:310:10 (xds_cluster_end2end_test@poller=epoll1+0x3b472f2) #9 absl::lts_20250127::internal_any_invocable::Impl::operator()() /proc/self/cwd/external/com_google_absl/absl/functional/internal/any_invocable.h:868:1 (xds_cluster_end2end_test@poller=epoll1+0x4aa14ef) #10 grpc_event_engine::experimental::SelfDeletingClosure::Run() /proc/self/cwd/./src/core/lib/event_engine/common_closures.h:54:5 (xds_cluster_end2end_test@poller=epoll1+0x56a78ad) #11 grpc_event_engine::experimental::WorkStealingThreadPool::ThreadState::Step() /proc/self/cwd/src/core/lib/event_engine/thread_pool/work_stealing_thread_pool.cc:552:14 (xds_cluster_end2end_test@poller=epoll1+0x56a4663) #12 grpc_event_engine::experimental::WorkStealingThreadPool::ThreadState::ThreadBody() /proc/self/cwd/src/core/lib/event_engine/thread_pool/work_stealing_thread_pool.cc:515:10 (xds_cluster_end2end_test@poller=epoll1+0x56a3d47) #13 grpc_event_engine::experimental::WorkStealingThreadPool::WorkStealingThreadPoolImpl::StartThread()::$_0::operator()(void*) const /proc/self/cwd/src/core/lib/event_engine/thread_pool/work_stealing_thread_pool.cc:277:17 (xds_cluster_end2end_test@poller=epoll1+0x56a5049) #14 grpc_event_engine::experimental::WorkStealingThreadPool::WorkStealingThreadPoolImpl::StartThread()::$_0::__invoke(void*) /proc/self/cwd/src/core/lib/event_engine/thread_pool/work_stealing_thread_pool.cc:275:7 (xds_cluster_end2end_test@poller=epoll1+0x56a4fe9) #15 grpc_core::(anonymous namespace)::ThreadInternalsPosix::ThreadInternalsPosix(char const*, void (*)(void*), void*, bool*, grpc_core::Thread::Options const&)::'lambda'(void*)::operator()(void*) const /proc/self/cwd/src/core/util/posix/thd.cc:145:11 (xds_cluster_end2end_test@poller=epoll1+0x58479f0) #16 grpc_core::(anonymous namespace)::ThreadInternalsPosix::ThreadInternalsPosix(char const*, void (*)(void*), void*, bool*, grpc_core::Thread::Options const&)::'lambda'(void*)::__invoke(void*) /proc/self/cwd/src/core/util/posix/thd.cc:115:9 (xds_cluster_end2end_test@poller=epoll1+0x5847819) Previous write of size 1 at 0x72680002dd80 by thread T4: #0 grpc::internal::CallbackBidiHandler::ServerCallbackReaderWriterImpl::Write(envoy::service::load_stats::v3::LoadStatsResponse const*, grpc::WriteOptions) /proc/self/cwd/include/grpcpp/impl/server_callback_handlers.h:790:38 (xds_cluster_end2end_test@poller=epoll1+0x3289e85) #1 grpc::ServerBidiReactor::StartWrite(envoy::service::load_stats::v3::LoadStatsResponse const*, grpc::WriteOptions) /proc/self/cwd/include/grpcpp/support/server_callback.h:350:13 (xds_cluster_end2end_test@poller=epoll1+0x32ef139) #2 grpc::ServerBidiReactor::StartWrite(envoy::service::load_stats::v3::LoadStatsResponse const*) /proc/self/cwd/include/grpcpp/support/server_callback.h:328:5 (xds_cluster_end2end_test@poller=epoll1+0x32cb6df) #3 grpc::testing::LrsServiceImpl::Reactor::OnReadDone(bool) /proc/self/cwd/test/cpp/end2end/xds/xds_server.cc:461:5 (xds_cluster_end2end_test@poller=epoll1+0x32c6535) #4 grpc::internal::CallbackBidiHandler::ServerCallbackReaderWriterImpl::SetupReactor(grpc::ServerBidiReactor*)::'lambda0'(bool)::operator()(bool) const /proc/self/cwd/include/grpcpp/impl/server_callback_handlers.h:839:22 (xds_cluster_end2end_test@poller=epoll1+0x328f196) #5 std::_Function_handler::ServerCallbackReaderWriterImpl::SetupReactor(grpc::ServerBidiReactor*)::'lambda0'(bool)>::_M_invoke(std::_Any_data const&, bool&&) /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/std_function.h:300:2 (xds_cluster_end2end_test@poller=epoll1+0x328ef1a) #6 std::function::operator()(bool) const /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/std_function.h:688:14 (xds_cluster_end2end_test@poller=epoll1+0x3279bb8) #7 grpc::internal::CallbackWithSuccessTag::Run(bool)::'lambda'()::operator()() const /proc/self/cwd/include/grpcpp/support/callback_common.h:230:11 (xds_cluster_end2end_test@poller=epoll1+0x3279ae5) #8 void std::__invoke_impl(std::__invoke_other, grpc::internal::CallbackWithSuccessTag::Run(bool)::'lambda'() const&) /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/invoke.h:60:14 (xds_cluster_end2end_test@poller=epoll1+0x3279a65) #9 std::__invoke_result::type std::__invoke(grpc::internal::CallbackWithSuccessTag::Run(bool)::'lambda'() const&) /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/invoke.h:95:14 (xds_cluster_end2end_test@poller=epoll1+0x3279a15) #10 std::invoke_result::type std::invoke(grpc::internal::CallbackWithSuccessTag::Run(bool)::'lambda'() const&) /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/functional:81:14 (xds_cluster_end2end_test@poller=epoll1+0x32799c5) #11 void absl::lts_20250127::functional_internal::InvokeObject(absl::lts_20250127::functional_internal::VoidPtr) /proc/self/cwd/external/com_google_absl/absl/functional/internal/function_ref.h:78:7 (xds_cluster_end2end_test@poller=epoll1+0x327996d) #12 absl::lts_20250127::FunctionRef::operator()() const /proc/self/cwd/external/com_google_absl/absl/functional/function_ref.h:132:12 (xds_cluster_end2end_test@poller=epoll1+0x3bd0221) #13 void grpc::GlobalCallbackHook::CatchingCallback&>(absl::lts_20250127::FunctionRef&) /proc/self/cwd/include/grpcpp/support/global_callback_hook.h:41:5 (xds_cluster_end2end_test@poller=epoll1+0x3bd01a1) #14 grpc::DefaultGlobalCallbackHook::RunCallback(grpc_call*, absl::lts_20250127::FunctionRef) /proc/self/cwd/include/grpcpp/support/global_callback_hook.h:50:5 (xds_cluster_end2end_test@poller=epoll1+0x3bd011d) #15 grpc::internal::CallbackWithSuccessTag::Run(bool) /proc/self/cwd/include/grpcpp/support/callback_common.h:227:32 (xds_cluster_end2end_test@poller=epoll1+0x3279715) #16 grpc::internal::CallbackWithSuccessTag::StaticRun(grpc_completion_queue_functor*, int) /proc/self/cwd/include/grpcpp/support/callback_common.h:212:47 (xds_cluster_end2end_test@poller=epoll1+0x3279329) #17 cq_end_op_for_callback(grpc_completion_queue*, void*, absl::lts_20250127::Status, void (*)(void*, grpc_cq_completion*), void*, grpc_cq_completion*, bool)::$_0::operator()() const /proc/self/cwd/src/core/lib/surface/completion_queue.cc:913:9 (xds_cluster_end2end_test@poller=epoll1+0x545e2e3) #18 void std::__invoke_impl(std::__invoke_other, cq_end_op_for_callback(grpc_completion_queue*, void*, absl::lts_20250127::Status, void (*)(void*, grpc_cq_completion*), void*, grpc_cq_completion*, bool)::$_0&) /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/invoke.h:60:14 (xds_cluster_end2end_test@poller=epoll1+0x545e205) grpc#19 std::__invoke_result::type std::__invoke(cq_end_op_for_callback(grpc_completion_queue*, void*, absl::lts_20250127::Status, void (*)(void*, grpc_cq_completion*), void*, grpc_cq_completion*, bool)::$_0&) /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/invoke.h:95:14 (xds_cluster_end2end_test@poller=epoll1+0x545e1b5) grpc#20 std::invoke_result::type std::invoke(cq_end_op_for_callback(grpc_completion_queue*, void*, absl::lts_20250127::Status, void (*)(void*, grpc_cq_completion*), void*, grpc_cq_completion*, bool)::$_0&) /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/functional:81:14 (xds_cluster_end2end_test@poller=epoll1+0x545e165) grpc#21 void absl::lts_20250127::internal_any_invocable::InvokeR(cq_end_op_for_callback(grpc_completion_queue*, void*, absl::lts_20250127::Status, void (*)(void*, grpc_cq_completion*), void*, grpc_cq_completion*, bool)::$_0&) /proc/self/cwd/external/com_google_absl/absl/functional/internal/any_invocable.h:132:3 (xds_cluster_end2end_test@poller=epoll1+0x545e115) grpc#22 void absl::lts_20250127::internal_any_invocable::RemoteInvoker(absl::lts_20250127::internal_any_invocable::TypeErasedState*) /proc/self/cwd/external/com_google_absl/absl/functional/internal/any_invocable.h:368:10 (xds_cluster_end2end_test@poller=epoll1+0x545df6d) grpc#23 absl::lts_20250127::internal_any_invocable::Impl::operator()() /proc/self/cwd/external/com_google_absl/absl/functional/internal/any_invocable.h:868:1 (xds_cluster_end2end_test@poller=epoll1+0x4aa14ef) grpc#24 grpc_event_engine::experimental::SelfDeletingClosure::Run() /proc/self/cwd/./src/core/lib/event_engine/common_closures.h:54:5 (xds_cluster_end2end_test@poller=epoll1+0x56a78ad) grpc#25 grpc_event_engine::experimental::WorkStealingThreadPool::ThreadState::Step() /proc/self/cwd/src/core/lib/event_engine/thread_pool/work_stealing_thread_pool.cc:552:14 (xds_cluster_end2end_test@poller=epoll1+0x56a4663) grpc#26 grpc_event_engine::experimental::WorkStealingThreadPool::ThreadState::ThreadBody() /proc/self/cwd/src/core/lib/event_engine/thread_pool/work_stealing_thread_pool.cc:515:10 (xds_cluster_end2end_test@poller=epoll1+0x56a3d47) grpc#27 grpc_event_engine::experimental::WorkStealingThreadPool::WorkStealingThreadPoolImpl::StartThread()::$_0::operator()(void*) const /proc/self/cwd/src/core/lib/event_engine/thread_pool/work_stealing_thread_pool.cc:277:17 (xds_cluster_end2end_test@poller=epoll1+0x56a5049) grpc#28 grpc_event_engine::experimental::WorkStealingThreadPool::WorkStealingThreadPoolImpl::StartThread()::$_0::__invoke(void*) /proc/self/cwd/src/core/lib/event_engine/thread_pool/work_stealing_thread_pool.cc:275:7 (xds_cluster_end2end_test@poller=epoll1+0x56a4fe9) grpc#29 grpc_core::(anonymous namespace)::ThreadInternalsPosix::ThreadInternalsPosix(char const*, void (*)(void*), void*, bool*, grpc_core::Thread::Options const&)::'lambda'(void*)::operator()(void*) const /proc/self/cwd/src/core/util/posix/thd.cc:145:11 (xds_cluster_end2end_test@poller=epoll1+0x58479f0) grpc#30 grpc_core::(anonymous namespace)::ThreadInternalsPosix::ThreadInternalsPosix(char const*, void (*)(void*), void*, bool*, grpc_core::Thread::Options const&)::'lambda'(void*)::__invoke(void*) /proc/self/cwd/src/core/util/posix/thd.cc:115:9 (xds_cluster_end2end_test@poller=epoll1+0x5847819) ``` Closes grpc#39806 COPYBARA_INTEGRATE_REVIEW=grpc#39806 from markdroth:lrs_server_callback_fix e10ed85 PiperOrigin-RevId: 769289887
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PanCakes to the rescue!
We noticed that our 'sanity' test was going to fail, but we think we can fix that automatically, so we put together this PR to do just that!
If you'd like to opt-out of these PR's, add yourself to NO_AUTOFIX_USERS in .github/workflows/pr-auto-fix.yaml