"Mark" <mhdostal@gmail.com> wrote in message
news:1147368845.857395.285860@u72g2000cwu.googlegroups.com...
>I have a multi-threaded application using both managed (C#/.NET) and
> unmanaged code (C++). The unmanaged code calls into the manage code
> (via COM Interop) to perform a variety of tasks. Every two or three
> days the application would unexpectedly crash; I added a GC.Collect()
> call to the end of every method in the module in question and now the
> problem happens 4 -5 time a day. Some debug information from WinDbg is
> below. I'm currently looking at the code to ensure thread-safety,
> but other than that I don't have a clear direction to take.
>
> Any help, insight, or other resources are appreciated.
>
> Thanks,
> Mark
>
> Wed May 10 13:17:24.046 2006 (GMT-5): (2cc.818): Access violation -
> code c0000005 (first chance)
> First chance exceptions are reported before any exception handling.
> This exception may be expected and handled.
> eax=4507e1c4 ebx=00000006 ecx=f7d53fa9 edx=361ee308 esi=00000000
> edi=15b1f3fc
> eip=79212122 esp=361ee744 ebp=361ee74c iopl=0 nv up ei pl nz na
> pe nc
> cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000
> efl=00010202
> mscorwks!GCHeap::Promote+0x8:
> 79212122 8b30 mov esi,[eax]
> ds:0023:4507e1c4=????????
>
>
> mscorwks!GCHeap::Promote+0x8
> mscorwks!ComMethodFrame::PromoteCalleeStack+0xb9
> mscorwks!ComMethodFrame::GcScanRoots+0x11
> mscorwks!GCStackCrawlCallBack+0x45
> mscorwks!Thread::StackWalkFramesEx+0x316
> mscorwks!Thread::StackWalkFrames+0x8b
> mscorwks!CNameSpace::GcScanRoots+0x7b
> mscorwks!gc_heap::mark_phase+0xd7
> mscorwks!gc_heap::gc1+0x96
> mscorwks!gc_heap::garbage_collect+0x1bf
> mscorwks!GCHeap::GarbageCollectGeneration+0x11b
> mscorwks!GCHeap::GarbageCollect+0x4a
> mscorwks!GCInterface::CollectGeneration+0xf
> WARNING: Frame IP not in any known module. Following frames may be
> wrong.
> 0x15e032b6
> Mscorwks!ComCallMLStubCache::CompileMLStub+0x674
> 0x5b9a1fd
> BTJ!InspectionStation::pickupCompleted(class BSEvent * prBSEvent)
>