Re: Mixed .Net process dies without a trace: Fatal Execution Engine Error (7A103E78) (800703e9)

Given that, if you can put a break point inside C, see if there /is/
any difference between the first and second successful attempts. It
could be a problem that gets worse before failing completely.
(Unlikely, of course.)

--=20
Regards,
Mark Hurd, B.Sc.(Ma.)(Hons.)


On Wed, Dec 16, 2009 at 9:39 AM, Peter vd Weerd <[email protected]> wrote:
> Wait, forgot to tell.
> The sequence A-->B-->C doesn't kill the process immediately. The first 2
> times it works fine. But the 3rd time it dies...
>
> ----- Original Message ----- From: "Peter vd Weerd" <[email protected]>
> To: <[email protected]>
> Sent: Wednesday, December 16, 2009 12:05 AM
> Subject: [ADVANCED-DOTNET] Mixed .Net process dies without a trace: Fatal
> Execution Engine Error (7A103E78) (800703e9)
>
>
> Hi experts,
>
> I have an COM-interop problem.
> The host is a C++ COM-component (A), which loads a .Net object (B) that i=
s
> comvisible.
> A method in this .Net object is called and loads a different C++
> COM-component (C).
>
> So: A-->B-->C.
>
> All the C++ COM-components are threadsave and support the freethreaded
> marshaler.
> They are registered with threadingmode=3Dboth. The whole thing runs on a
> STA-thread.
>
> In some situations, the application dies without a trace, and a msg is in
> the eventlog:
> .NET Runtime version 2.0.50727.3082 - Fatal Execution Engine Error
> (7A103E78) (800703e9)
>
> 800703e9 means: stackoverflow.
>
> When I run it from Visual studio, I stops in the call from B to C, indead
> with a stackoverflow, but I can't see any unmanaged code (DLL's are not
> written in MS C++).
>
> So I used ADPlus in crash-mode to generate some dumps, and investigate
> there.
> The last thing I can see there is a DebugBreak.
> The stacktrace is below.
> It looks like the CLR does some marshaling magic and peeks the msg queue.=
 I
> didn't expect that because of the FT marshaller.
> Furthermore, if I put a MessageBox in the .Net code, just before the call=
 to
> C, everything works fine. So my feeling is that it has something to do wi=
th
> marshaling and timing.
> But I can't get my finger on the right place.
>
> Any idea's? Any pointers where to look? Thanks a lot.
>
> Peter
>
>
> The stacktrace is:
> (By the way, igor is my 'A' component, the stack doesn't show any code of
> the 'C' component.
> And although the method in C wasn't executed, there has been a lot of
> QueryInterfaces, AddRefs, etc in that 'C' component.)
>
> 037bc278 7a096467 037bc71c 79f7762b 3ab9eb41 ntdll!DbgBreakPoint
> 037bc728 7a096796 800703e9 7a103e78 00000000
> mscorwks!EEPolicy::LogFatalError+0x2b5
> 037bc740 7a103e83 800703e9 7a103e78 00000000
> mscorwks!EEPolicy::HandleFatalError+0x4d
> 037bc768 7a0bd9a9 3ab9ebd1 071f8a98 037becd4
> mscorwks!Thread::RestoreGuardPage+0xb7
> 037bc7b8 79f4c30c 037becd4 3ab9eb95 071f8a98
> mscorwks!ReleaseTransitionHelper+0x103
> 037bc7fc 79f4c370 037becd4 071f8a78 3ab9e459 mscorwks!SafeReleaseHelper+0=
x8c
> 037bc830 79faa892 037becd4 071f8a78 00000001 mscorwks!SafeRelease+0x2f
> 037bc848 79faa9ad 3ab9e411 00000001 071f8a78
> mscorwks!RCW::ReleaseAllInterfaces+0x48
> 037bc878 79faa9d9 071f8a78 3ab9e4c1 00000001
> mscorwks!RCW::ReleaseAllInterfacesCallBack+0xbd
> 037bc8a8 7a079480 16effb74 037bc8e4 7a0798e8 mscorwks!RCW::Cleanup+0x22
> 037bc8b4 7a0798e8 071f9100 3ab9e48d 037bc900
> mscorwks!RCWCleanupList::ReleaseRCWListRaw+0x16
> 037bc8e4 7a043f25 000a0800 000a0800 037bc910
> mscorwks!RCWCleanupList::ReleaseRCWListInCorrectCtx+0xdf
> 037bc8f4 77525834 16effa10 037bc914 037bc93c
> mscorwks!CtxEntry::EnterContextCallback+0x89
> 037bc910 77e799f4 0bd8ed80 0bd8e930 02020202
> ole32!CRemoteUnknown::DoCallback+0x7a
> 037bc92c 77ef421a 775257f9 037bc940 00000002 rpcrt4!Invoke+0x30
> 037bcd30 77ef4bf3 0bd845f8 0bd8f170 000d53b8 rpcrt4!NdrStubCall2+0x297
> 037bcd88 77600c15 0bd845f8 000d53b8 0bd8f170
> rpcrt4!CStdStubBuffer_Invoke+0xc6
> 037bcdc8 77600bbf 000d53b8 0bdb5ff4 00000000 ole32!SyncStubInvoke+0x33
> 037bce10 7752ad31 000d53b8 071e9428 0bd845f8 ole32!StubInvoke+0xa7
> 037bcee8 7752ac56 0bd8f170 00000000 0bd845f8
> ole32!CCtxComChnl::ContextInvoke+0xe3
> 037bcf04 7752b771 000d53b8 00000001 0bd845f8 ole32!MTAInvoke+0x1a
> 037bcf30 77600e1f 000d53b8 00000001 0bd845f8 ole32!STAInvoke+0x4a
> 037bcf64 77602df3 000d5360 0bd8f170 0bd845f8 ole32!AppInvoke+0x7e
> 037bd038 77600dd6 000d5360 0007b818 00000000
> ole32!ComInvokeWithLockAndIPID+0x2c2
> 037bd064 7752b7ab 000d5360 00000400 000cc000 ole32!ComInvoke+0x60
> 037bd078 7752b5e1 000d5360 037bd0f8 7752b54e ole32!ThreadDispatch+0x23
> 037bd090 7e418734 00080944 00056128 0000babe ole32!ThreadWndProc+0xfe
> 037bd0bc 7e418816 7752b54e 00080944 00000400 user32!InternalCallWinProc+0=
x28
> 037bd124 7e4189cd 00000000 7752b54e 00080944
> user32!UserCallWinProcCheckWow+0x150
> 037bd184 7e418a10 037bd1a8 00000000 037bd1c4
> user32!DispatchMessageWorker+0x306
> 037bd194 7752f2d0 037bd1a8 00000102 037bd208 user32!DispatchMessageW+0xf
> 037bd1c4 7752f10d 80010115 80010115 00000000
> ole32!CCliModalLoop::PeekRPCAndDDEMessage+0x4c
> 037bd1d8 77557237 037bd40c 00000001 037bd204
> ole32!CCliModalLoop::BlockFn+0x5e
> 037bd24c 79f9e14d 00000002 00000001 00000001
> ole32!CoWaitForMultipleHandles+0xcf
> 037bd26c 79f9e0b4 00000000 00000001 00000001 mscorwks!NT5WaitRoutine+0x51
> 037bd2d8 79f9e018 00000001 037bd40c 00000000 mscorwks!MsgWaitHelper+0xa5
> 037bd2f8 79f4c664 00000001 037bd40c 00000000
> mscorwks!Thread::DoAppropriateAptStateWait+0x28
> 037bd37c 79f4c6f9 00000001 037bd40c 00000000
> mscorwks!Thread::DoAppropriateWaitWorker+0x13c
> 037bd3cc 79f90c76 00000001 037bd40c 00000000
> mscorwks!Thread::DoAppropriateWait+0x40
> 037bd41c 79ef018c 00000001 0bd56d70 037bd47c mscorwks!Thread::JoinEx+0x86
> 037bd42c 7a079b7c 00000001 00000001 3ab9f815 mscorwks!Thread::Join+0x14
> 037bd47c 79faa55f 00000001 037bd4cc 79faa5c8
> mscorwks!RCWCleanupList::CleanupWrappersInCurrentCtxThread+0x15a
> 037bd488 79faa5c8 0721495c 037bd52c 3ab9f8a5 mscorwks!RCW::Initialize+0x7=
8
> 037bd4cc 79faa25f 0721495c 037bd52c 3ab9f955 mscorwks!RCW::CreateRCW+0x84
> 037bd53c 79faa36d 00000000 037bd578 3ab9f9e1
> mscorwks!COMInterfaceMarshaler::CreateObjectRef+0x45
> 037bd588 79f9d0f8 3ab9f62d 037bdce4 037bdce4
> mscorwks!COMInterfaceMarshaler::FindOrCreateObjectRef+0xac
> 037bda44 79f9d294 072148e8 058e6918 00000001
> mscorwks!GetObjectRefFromComIP+0x1ec
> 037bda64 79f9d2fb 000c3940 072148e8 058e5bb0
> mscorwks!UnmarshalObjectFromInterface+0x19
> 037bda80 79fb5089 037bdce4 037bdcc8 79fb5079
> mscorwks!InterfaceMarshalerBase::ConvertSpaceNativeToCLR+0x30
> 037bda8c 79fb5079 037bdf70 037bdf60 3ab9f0a1
> mscorwks!DefaultMarshalOverrides<InterfaceMarshalerBase>::ReturnCLRFromNa=
tiveRetval+0xb
> 037bdcc8 79f139af 058da2d3 037bdf5c 037bdf74 mscorwks!RunML+0x9ac
> 037bdfa8 058da28e 0bd56d70 037bdffc 3987259a mscorwks!CLRToCOMWorker+0x25=
f
> WARNING: Frame IP not in any known module. Following frames may be wrong.
> 037bdfe4 05a8313f 1200e4d0 1200ec7c 11f0d990 0x58da28e
> 037be11c 79f68c32 057a26cc 0bd56d70 00000000 0x5a8313f
> 037be20c 79f68deb 0bd56d70 037be404 037be47c
> mscorwks!COMToCLRWorkerBody+0x115
> 037be268 79f68f54 0bd56d70 037be404 037be47c
> mscorwks!COMToCLRWorkerDebuggerWrapper+0x37
> 037be43c 058da706 0bd56d70 037be47c 3987259a mscorwks!COMToCLRWorker+0x15=
7
> *** WARNING: Unable to verify checksum for igor022.dll
> *** ERROR: Symbol file could not be found. =A0Defaulted to export symbols=
 for
> igor022.dll -
> 037be464 0a50defc 0ae26b88 037beecc 0add0020 0x58da706
> 037be49c 0a50e58c 0add0020 037beecc 037beecc igor022!taoDeleteFiles+0x47a=
c
> 037be4b4 0a510c1c 0ad99a74 037beecc 00000001 igor022!taoDeleteFiles+0x4e3=
c
> 037be504 0a4fcece 0ad319b0 037beecc 0ad319b0 igor022!taoDeleteFiles+0x74c=
c
> 037bf35c 0a4fca96 0ad306a8 00000000 00000002 igor022!PtrToInt+0xbbd2e
> 037bf4a8 0a4fc68f 0ad306a8 0a5f2148 00000003 igor022!PtrToInt+0xbb8f6
> 037bf500 0a5302f3 0ad306a8 0bad5ef0 00000003 igor022!PtrToInt+0xbb4ef

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
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