EventPipe hangs with a shared NativeAOT library #89346
Description
EventPipe seems to have an issue when events are written from a shared library. Using a tool like dotnet-trace to collect trace results in a hang.
Repro Steps
- Use a sample similar to https://github.com/dotnet/samples/tree/main/core/nativeaot/NativeLibrary
- Add
EventSourceSupportproperty to the project - Add an EventSource to the shared library and write some events. This sample has an example of the additional steps above for the sample app above.
- Start the C program and get a tool like dotnet-trace to collect (for the sample above, can use
dotnet-trace collect --providers LaksDemoEventSource,Microsoft-Windows-DotNETRuntime --name MultiAotTest- Note that if no trace is collected, the application behaves as expected.
- This result in the program hanging.
- Couple of interesting call stacks are given below
[ERROR] Microsoft.Diagnostics.NETCore.Client.ServerNotAvailableException: Could not send Stop command. The target process may have exited.
at Microsoft.Diagnostics.NETCore.Client.EventPipeSession.Stop() in /_/src/Microsoft.Diagnostics.NETCore.Client/DiagnosticsClient/EventPipeSession.cs:line 60
at Microsoft.Diagnostics.Tools.Trace.CollectCommandHandler.Collect(CancellationToken ct, IConsole console, Int32 processId, FileInfo output, UInt32 buffersize, String providers, String profile, TraceFileFormat format, TimeSpan duration, String clrevents, String clreventlevel, String name, String diagnosticPort, Boolean showchildio, Boolean resumeRuntime) in /_/src/Tools/dotnet-trace/CommandLine/Commands/CollectCommand.cs:line 326
0 Id: 5870.8a90 Suspend: 1 Teb: 000000d2`8df47000 Unfrozen
# Child-SP RetAddr Call Site
00 000000d2`8dd3ee88 00007ffb`cb1bf499 ntdll!NtWaitForMultipleObjects+0x14
01 000000d2`8dd3ee90 00007ffb`02d71a8a KERNELBASE!WaitForMultipleObjectsEx+0xe9
02 000000d2`8dd3f170 00007ffb`02d78a45 NativeLibrary!PalCompatibleWaitAny+0x3a [D:\a\_work\1\s\src\coreclr\nativeaot\Runtime\windows\PalRedhawkMinWin.cpp @ 288]
03 (Inline Function) --------`-------- NativeLibrary!ThreadStore::GetCurrentThreadIfAvailable+0x98 [D:\a\_work\1\s\src\coreclr\nativeaot\Runtime\threadstore.inl @ 35]
04 000000d2`8dd3f1b0 00007ffb`02dc934d NativeLibrary!CLREventStatic::Wait+0xc5 [D:\a\_work\1\s\src\coreclr\nativeaot\Runtime\event.cpp @ 89]
05 (Inline Function) --------`-------- NativeLibrary!ep_rt_wait_event_wait+0x11 [D:\a\_work\1\s\src\coreclr\nativeaot\Runtime\eventpipe\ep-rt-aot.h @ 609]
06 (Inline Function) --------`-------- NativeLibrary!session_disable_streaming_thread+0x29 [D:\a\_work\1\s\src\native\eventpipe\ep-session.c @ 119]
07 (Inline Function) --------`-------- NativeLibrary!ep_session_disable+0x43 [D:\a\_work\1\s\src\native\eventpipe\ep-session.c @ 426]
08 000000d2`8dd3f1f0 00007ffb`02dc912f NativeLibrary!disable_holding_lock+0x17d [D:\a\_work\1\s\src\native\eventpipe\ep.c @ 585]
09 000000d2`8dd3f2e0 00007ffb`02dcc392 NativeLibrary!disable_helper+0x5f [D:\a\_work\1\s\src\native\eventpipe\ep.c @ 657]
0a 000000d2`8dd3f340 00007ffb`02dd27ba NativeLibrary!ep_disable+0x72 [D:\a\_work\1\s\src\native\eventpipe\ep.c @ 1147]
0b 000000d2`8dd3f370 00007ffb`02d6cf08 NativeLibrary!ep_shutdown+0x8a [D:\a\_work\1\s\src\native\eventpipe\ep.c @ 1433]
0c 000000d2`8dd3f3a0 00007ffb`cb623a83 NativeLibrary!OnProcessExit+0x28 [D:\a\_work\1\s\src\coreclr\nativeaot\Runtime\startup.cpp @ 510]
0d 000000d2`8dd3f3d0 00007ffb`cb5f006e ucrtbase!<lambda_f03950bc5685219e0bcd2087efbe011e>::operator()+0xab
0e 000000d2`8dd3f420 00007ffb`cb5eda1d ucrtbase!__crt_seh_guarded_call<int>::operator()<<lambda_7777bce6b2f8c936911f934f8298dc43>,<lambda_f03950bc5685219e0bcd2087efbe011e> &,<lambda_3883c3dff614d5e0c5f61bb1ac94921c> >+0x36
0f 000000d2`8dd3f450 00007ffb`02e04c79 ucrtbase!execute_onexit_table+0x3d
10 000000d2`8dd3f490 00007ffb`02e04d9e NativeLibrary!dllmain_crt_process_detach+0x45 [D:\a\_work\1\s\src\vctools\crt\vcstartup\src\startup\dll_dllmain.cpp @ 182]
11 000000d2`8dd3f4d0 00007ffb`cd93868f NativeLibrary!dllmain_dispatch+0xe6 [D:\a\_work\1\s\src\vctools\crt\vcstartup\src\startup\dll_dllmain.cpp @ 293]
12 000000d2`8dd3f530 00007ffb`cd961096 ntdll!LdrpCallInitRoutine+0x6b