[Bug 28388] winmm/midi.ok deadlocks and crashes occasionally?

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=28388

--- Comment #7 from Dan Kegel <dank at kegel.com> 2011-09-29 19:58:56 CDT ---
Happened again on my e7300 (after 26000 tries!), and I happened to be
there again.  Log:

err:ntdll:RtlpWaitForCriticalSection section 0x110060 "heap.c: main process
heap section" wait timed out in thread 0045, blocked by 0026, retrying (60 sec)
wine: Critical section 00110060 wait failed at address 0x7bc34357 (thread
0045), starting debugger...

Here's what btall said; it's very similar to the last time one.

Backtracing for thread 0026 in process 0016
(Z:\home\dank\wine-git\dlls\winmm\tests\winmm_test.exe):
Backtrace:
=>0 notify_alloc+0x10(ptr=0x137b48, size=0x100, init=0) [dlls/ntdll/heap.c:254]
  1 RtlAllocateHeap+0x32c(heap=0x110000, flags=0x2, size=0x100)
[dlls/ntdll/heap.c:1702]
  2 peek_message+0x84(msg=0x73e9d0, hwnd=(nil), first=0, last=0,
flags=0x4ff0001, changed_mask=0x4ff) [dlls/user32/message.c:2612]
  3 GetMessageW+0x151(msg=0x73e9d0, hwnd=(nil), first=0, last=0)
[dlls/user32/message.c:3610]
  4 GetMessageA+0x5f(msg=0x73e9d0, hwnd=(nil), first=0, last=0)
[dlls/user32/message.c:3625]
  5 MMSYSTEM_MidiStream_Player+0x132(pmt=0x129328) [dlls/winmm/winmm.c:1155]
  ...

Backtracing for thread 0045 in process 0016
(Z:\home\dank\wine-git\dlls\winmm\tests\winmm_test.exe):
Backtrace:
=>0 0x68000832 GLIBC_2+0x832() in ld-linux.so.2 (0x00000000)
0x68000830 GLIBC_2+0x830 in ld-linux.so.2: int $0x80

(I doubt this is the cause, but isn't that PeekMessage loop in 
MMSYSTEM_MidiStream_Player() kind of busy?)

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