[Mesa-dev] [Bug 76252] Dynamic loading/unloading of opengl32.dll results in a deadlock

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=76252

--- Comment #3 from cgerlach42 at gmail.com ---
I set LP_NUM_THREADS=1 to reduce the number of stracktraces and used Mesa 10.1
with llvm 3.4. If you need more information or something I should test, please
feel free to ask.

Thread 1:
     ntdll.dll!NtWaitForSingleObject
()    Unknown
     KernelBase.dll!WaitForSingleObjectEx
()    Unknown
     opengl32.dll!lp_rast_destroy(lp_rasterizer * rast=0x000000000035ee90) Line
948    C
     opengl32.dll!llvmpipe_destroy_screen(pipe_screen *
_screen=0x000007fedbc18c70) Line 439    C
     opengl32.dll!stw_cleanup() Line 180    C
     opengl32.dll!DllMain(HINSTANCE__ * hinstDLL=0x000007fe00000003, unsigned
long fdwReason=24, void * lpReserved=0x000000000034de00) Line 168    C
     opengl32.dll!__DllMainCRTStartup(void * hDllHandle=0x000007fedaac0000,
unsigned long dwReason=0, void * lpreserved=0x0000000000000000) Line 508    C
     ntdll.dll!LdrpUnloadDll
()    Unknown
     ntdll.dll!LdrUnloadDll
()    Unknown
     KernelBase.dll!FreeLibrary
()    Unknown
     QtCore4.dll!QLibraryPrivate::unload_sys() Line 157    C++
     QtCore4.dll!QLibraryPrivate::unload() Line 488    C++
>	TomGRT-test_unload.exe!main(int __formal=0, char * * __formal=0x01cf4983fe91acb2) Line 18	C++
     TomGRT-test_unload.exe!__tmainCRTStartup() Line 536    C
     kernel32.dll!BaseThreadInitThunk
()    Unknown
     ntdll.dll!RtlUserThreadStart
()    Unknown

Thread 2:
>	ntdll.dll!NtWaitForSingleObject
()	Unknown
     ntdll.dll!RtlpWaitOnCriticalSection
()    Unknown
     ntdll.dll!RtlEnterCriticalSection
()    Unknown
     ntdll.dll!LdrShutdownThread
()    Unknown
     ntdll.dll!RtlExitUserThread
()    Unknown
     msvcr110.dll!_endthreadex(unsigned int retcode=0) Line 408    C
     msvcr110.dll!_callthreadstartex() Line 354    C
     msvcr110.dll!_threadstartex(void * ptd=0x000000000035f020) Line 332    C
     kernel32.dll!BaseThreadInitThunk
()    Unknown
     ntdll.dll!RtlUserThreadStart
()    Unknown

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