零星的崩溃

[bethebest0622]

您好，我们使用drogon有段时间了，还是比较稳定的，但最近零星出现一些崩溃，堆栈信息如下：

(gdb) where
#0  0x00007f956e54115d in std::__detail::_List_node_base::_M_hook (this=0x7f9568103460, __position=0x7f95683bb420)
    at /home/nwani/m3/conda-bld/compilers_linux-64_1560109574129/work/.build/x86_64-conda_cos6-linux-gnu/src/gcc/libstdc++-v3/src/c++98/list.cc:132
#1  0x00007f956ec13eea in trantor::SessionManager::store(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, trantor::InetAddress, ssl_session_st*, trantor::EventLoop*) ()
   from /usr/local/lib/libhttp_util.so
#2  0x00007f956ec14e58 in OpenSSLProvider::processHandshake() () from /usr/local/lib/libhttp_util.so
#3  0x00007f956ec16fb7 in OpenSSLProvider::recvData(trantor::MsgBuffer*) () from /usr/local/lib/libhttp_util.so
#4  0x00007f956ec07185 in trantor::TcpConnectionImpl::readCallback() () from /usr/local/lib/libhttp_util.so
#5  0x00007f956ebfae68 in trantor::Channel::handleEventSafely() () from /usr/local/lib/libhttp_util.so
#6  0x00007f956ebfaf01 in trantor::Channel::handleEvent() () from /usr/local/lib/libhttp_util.so
#7  0x00007f956ebeab8c in trantor::EventLoop::loop() () from /usr/local/lib/libhttp_util.so
#8  0x00007f956eb1c90a in drogon::HttpAppFrameworkImpl::run() () from /usr/local/lib/libhttp_util.so
#9  0x00007f956e55419d in std::execute_native_thread_routine (__p=0xdc0bd0) at /home/nwani/m3/conda-bld/compilers_linux-64_1560109574129/work/.build/x86_64-conda_cos6-linux-gnu/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#10 0x00007f956e09f832 in start_thread () from /lib64/libc.so.6
#11 0x00007f956e03f480 in clone3 () from /lib64/libc.so.6

(gdb) where
#0  0x00007f0ad7d058ff in std::__detail::_Map_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, std::_List_iterator<trantor::SessionManager::SessionData> >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::_List_iterator<trantor::SessionManager::SessionData> > >, 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>, true>::operator[](std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) () from /usr/local/lib/libhttp_util.so
#1  0x00007f0ad7d05f16 in trantor::SessionManager::store(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, trantor::InetAddress, ssl_session_st*, trantor::EventLoop*) ()
   from /usr/local/lib/libhttp_util.so
#2  0x00007f0ad7d06e58 in OpenSSLProvider::processHandshake() () from /usr/local/lib/libhttp_util.so
#3  0x00007f0ad7d08fb7 in OpenSSLProvider::recvData(trantor::MsgBuffer*) () from /usr/local/lib/libhttp_util.so
#4  0x00007f0ad7cf9185 in trantor::TcpConnectionImpl::readCallback() () from /usr/local/lib/libhttp_util.so
#5  0x00007f0ad7cece68 in trantor::Channel::handleEventSafely() () from /usr/local/lib/libhttp_util.so
#6  0x00007f0ad7cecf01 in trantor::Channel::handleEvent() () from /usr/local/lib/libhttp_util.so
#7  0x00007f0ad7cdcb8c in trantor::EventLoop::loop() () from /usr/local/lib/libhttp_util.so
#8  0x00007f0ad7cddaf0 in trantor::EventLoopThread::loopFuncs() () from /usr/local/lib/libhttp_util.so
#9  0x00007f0ad7200b23 in execute_native_thread_routine () from /lib64/libstdc++.so.6
#10 0x00007f0ad76a11ca in start_thread () from /lib64/libpthread.so.0
#11 0x00007f0ad68078d3 in clone () from /lib64/libc.so.6

可以请您看一下吗

[marty1885]

可以提供運行環境資訊嗎？

• CPU
• 給 Drogon 的線程數目
• Drogon 版本
• 服務端還是客戶端

[mrclassfree]

你好，我也碰到了崩溃的现象，通过DUMP分析也找不出原因，有大牛能帮忙分析一下吗？
Drogon信息：
Version: 1.9.8
Git commit: 882c1d9
Compilation:
Compiler: c++
Compiler ID: GNU
Compilation flags: -O3 -DNDEBUG -std=c++17 -I/usr/include/jsoncpp -I/usr/local/include
Libraries:
postgresql: no (pipeline mode: no)
mariadb: yes
sqlite3: no
ssl/tls backend: OpenSSL
brotli: no
hiredis: yes
c-ares: no
yaml-cpp: no
系统环境信息：
Operating system: Linux
0.0.0 Linux 4.18.0-348.7.1.el8_5.x86_64 #1 SMP Wed Dec 22 13:25:12 UTC 2021 x86_64
CPU: amd64
family 23 model 49 stepping 0
8 CPUs

DUMP分析结果文件上传到附件中[
result12202.txt
](url)

[an-tao]

你好，我也碰到了崩溃的现象，通过DUMP分析也找不出原因，有大牛能帮忙分析一下吗？ Drogon信息： Version: 1.9.8 Git commit: 882c1d9 Compilation: Compiler: c++ Compiler ID: GNU Compilation flags: -O3 -DNDEBUG -std=c++17 -I/usr/include/jsoncpp -I/usr/local/include Libraries: postgresql: no (pipeline mode: no) mariadb: yes sqlite3: no ssl/tls backend: OpenSSL brotli: no hiredis: yes c-ares: no yaml-cpp: no 系统环境信息： Operating system: Linux 0.0.0 Linux 4.18.0-348.7.1.el8_5.x86_64 #1 SMP Wed Dec 22 13:25:12 UTC 2021 x86_64 CPU: amd64 family 23 model 49 stepping 0 8 CPUs

DUMP分析结果文件上传到附件中[ result12202.txt ](url)

看着是有非法的内存访问，请确定你使用的变量在上下文环境里是有效的，可以贴一下相关的代码我看看

[marty1885]

感覺是不同地方。OpenSSL 的 session manager 跟 Coroutine.. OpenSSL session 那個我真看不出是什麼問題。沒道理 map 自己炸阿

[an-tao]

最好有必现的代码能在自己的环境里重现跟踪