"io_async_async_udp_socket_test.AsyncSocketIntegrationTest" tests crash intermittently

[sin-ack]

The stack symbol points to:

folly/folly/io/async/AsyncUDPServerSocket.h

Line 342 in ac55124

callback->onListenStopped();

So I have a suspicion the problem lies in the notification arriving after acceptors_ is cleaned up in the UDPServer initialized at:

folly/folly/io/async/test/AsyncUDPSocketTest.cpp

Line 448 in ac55124

server = std::make_unique<UDPServer>(

1524/3375 Testing: io_async_async_udp_socket_test.AsyncSocketIntegrationTest.PingPongPauseResumeListening
1524/3375 Test: io_async_async_udp_socket_test.AsyncSocketIntegrationTest.PingPongPauseResumeListening
Command: "/var/tmp/portage/dev-cpp/folly-2025.01.06.00/work/folly-2025.01.06.00_build/io_async_async_udp_socket_test" "--gtest_filter=AsyncSocketIntegrationTest.PingPongPauseResumeListening"
Directory: /var/tmp/portage/dev-cpp/folly-2025.01.06.00/work/folly-2025.01.06.00
"io_async_async_udp_socket_test.AsyncSocketIntegrationTest.PingPongPauseResumeListening" start time: Jan 12 14:14 CET
Output:
----------------------------------------------------------
Note: Google Test filter = AsyncSocketIntegrationTest.PingPongPauseResumeListening
[==========] Running 1 test from 1 test suite.
[----------] Global test environment set-up.
[----------] 1 test from AsyncSocketIntegrationTest
[ RUN      ] AsyncSocketIntegrationTest.PingPongPauseResumeListening
I20250112 14:14:42.565850  8379 AsyncUDPSocketTest.cpp:463] Server listening=127.0.0.1:43185
*** Aborted at 1736687683 (Unix time, try 'date -d @1736687683') ***
*** Signal 11 (SIGSEGV) (0x7f11f8009) received by PID 8379 (pthread TID 0x7f11fe0532c0) (linux TID 8379) (code: address not mapped to object), stack trace: ***
/var/tmp/portage/dev-cpp/folly-2025.01.06.00/work/folly-2025.01.06.00_build/libfolly.so.0.58.0-dev(_ZN5folly10symbolizer17getStackTraceSafeEPmm+0x72) [0x7f11ff0b9982]
/var/tmp/portage/dev-cpp/folly-2025.01.06.00/work/folly-2025.01.06.00_build/libfolly.so.0.58.0-dev(_ZN5folly10symbolizer21SafeStackTracePrinter15printStackTraceEb+0x40) [0x7f11ff0bbe70]
/var/tmp/portage/dev-cpp/folly-2025.01.06.00/work/folly-2025.01.06.00_build/libfolly.so.0.58.0-dev(+0x2b8dd7) [0x7f11ff0b8dd7]
/lib64/libc.so.6(+0x40ccf) [0x7f11fe863ccf]
/var/tmp/portage/dev-cpp/folly-2025.01.06.00/work/folly-2025.01.06.00_build/io_async_async_udp_socket_test(_ZN5folly6detail8function5call_IZNS_20AsyncUDPServerSocket12onReadClosedEvEUlvE_Lb1ELb0EvJEEET2_DpT3_RNS1_4DataE+0x11) [0x56216ad542
31]
/var/tmp/portage/dev-cpp/folly-2025.01.06.00/work/folly-2025.01.06.00_build/libfolly.so.0.58.0-dev(_ZN5folly23AtomicNotificationQueueINS_8FunctionIFvvEEEE5driveIRNS_9EventBase10FuncRunnerEEEbOT_+0x1df) [0x7f11ff21e69f]
/var/tmp/portage/dev-cpp/folly-2025.01.06.00/work/folly-2025.01.06.00_build/libfolly.so.0.58.0-dev(_ZN5folly9EventBaseD1Ev+0xd3a) [0x7f11ff21a3ba]
/var/tmp/portage/dev-cpp/folly-2025.01.06.00/work/folly-2025.01.06.00_build/io_async_async_udp_socket_test(_ZN26AsyncSocketIntegrationTestD1Ev+0x9e) [0x56216ad9854e]
/var/tmp/portage/dev-cpp/folly-2025.01.06.00/work/folly-2025.01.06.00_build/io_async_async_udp_socket_test(_ZN60AsyncSocketIntegrationTest_PingPongPauseResumeListening_TestD0Ev+0x16) [0x56216ad98706]
/usr/lib64/libgtest.so.1.14.0(_ZN7testing8internal35HandleExceptionsInMethodIfSupportedINS_4TestEvEET0_PT_MS4_FS3_vEPKc+0x96) [0x7f11ff666f86]
/usr/lib64/libgtest.so.1.14.0(_ZN7testing8TestInfo3RunEv+0x125) [0x7f11ff64bd15]
/usr/lib64/libgtest.so.1.14.0(_ZN7testing9TestSuite3RunEv+0x2cc) [0x7f11ff64c07c]
/usr/lib64/libgtest.so.1.14.0(_ZN7testing8internal12UnitTestImpl11RunAllTestsEv+0x337) [0x7f11ff65a1c7]
/usr/lib64/libgtest.so.1.14.0(_ZN7testing8internal35HandleExceptionsInMethodIfSupportedINS0_12UnitTestImplEbEET0_PT_MS4_FS3_vEPKc+0x96) [0x7f11ff6676f6]
/usr/lib64/libgtest.so.1.14.0(_ZN7testing8UnitTest3RunEv+0x77) [0x7f11ff64c197]
/var/tmp/portage/dev-cpp/folly-2025.01.06.00/work/folly-2025.01.06.00_build/libfolly_test_support.so(main+0x5b) [0x7f11ff7079fb]
/lib64/libc.so.6(+0x2a3ed) [0x7f11fe84d3ed]
/lib64/libc.so.6(__libc_start_main+0x88) [0x7f11fe84d4a8]
/var/tmp/portage/dev-cpp/folly-2025.01.06.00/work/folly-2025.01.06.00_build/io_async_async_udp_socket_test(_start+0x24) [0x56216ad407b4]
(safe mode, symbolizer not available)
<end of output>
Test time =   0.56 sec
----------------------------------------------------------
Test Failed.
"io_async_async_udp_socket_test.AsyncSocketIntegrationTest.PingPongPauseResumeListening" end time: Jan 12 14:14 CET
"io_async_async_udp_socket_test.AsyncSocketIntegrationTest.PingPongPauseResumeListening" time elapsed: 00:00:00
----------------------------------------------------------

System information

OS: Gentoo Linux amd64 (x86_64-pc-linux-gnu)
Compiler: gcc (Gentoo Hardened 14.2.1_p20241221 p7) 14.2.1 20241221
C++ stdlib implementation: stdlibc++
Folly version: 2025.01.06.00