I've written a windows service. At several customer locations the
service will spordically crash with an access violation. A portion of
the event log is below. Can anybody give me any insight as to where
to look for more info or how to debug this? It seems to me that the
fault is occuring in function: ODBC32!MpHeapFree , is this correct?
Other than that, i'm not sure how to proceed. I have 3 logs from 3
different customers and the fault seems to be in the same place for
each.
Any help is appreciated. Please let me know if more information is
needed or if this should be asked somewhere else.
Thanks,
Mike
----------------------------------
State Dump for Thread Id 0x39c
eax=00000000 ebx=00000000 ecx=00a7c8a0 edx=ffffffd8 esi=0343f0f8
edi=00a7c8a0
eip=1f7d38dc esp=012af8e8 ebp=012af8ec iopl=0 nv up ei pl nz
ac pe cy
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000
efl=00000213
function: MpHeapFree
1f7d38c9 c3 ret
1f7d38ca 6a01 push 0x1
1f7d38cc 58 pop eax
1f7d38cd ebf7 jmp SearchStatusCode+0x72c
(1f7d8ec6)
1f7d38cf 55 push ebp
1f7d38d0 8bec mov ebp,esp
1f7d38d2 56 push esi
1f7d38d3 8b7508 mov esi,[ebp+0x8]
ss:01accebe=????????
1f7d38d6 8b4510 mov eax,[ebp+0x10]
ss:01accebe=????????
1f7d38d9 8b4d0c mov ecx,[ebp+0xc]
ss:01accebe=????????
FAULT ->1f7d38dc f00fb1 lock ???
1f7d38df 0e push cs
1f7d38e0 5e pop esi
1f7d38e1 5d pop ebp
1f7d38e2 c3 ret
1f7d38e3 8b442408 mov eax,[esp+0x8]
ss:01accebb=????????
1f7d38e7 8b4c2404 mov ecx,[esp+0x4]
ss:01accebb=????????
1f7d38eb 33d2 xor edx,edx
1f7d38ed 895008 mov [eax+0x8],edx
ds:0081d5d2=ffffffff
1f7d38f0 39511c cmp [ecx+0x1c],edx
ds:01299e72=????????
1f7d38f3 7415 jz SearchStatusCode+0x3c70
(1f7dc40a)
1f7d38f5 8b5120 mov edx,[ecx+0x20]
ds:01299e72=????????
*----> Stack Back Trace <----*
FramePtr ReturnAd Param#1 Param#2 Param#3 Param#4 Function Name
012AF8EC 1F7D3897 0343F0F8 00A7C8A0 00000000 00000000
ODBC32!MpHeapFree
012AF954 00416394 00000001 1F800000 0040A5CC 00A79B00
ODBC32!MpHeapFree
012AFD50 00408B86 00000000 65746E49 6C617672 012AFF00 !<nosymbols>
012AFF80 7800C9EB 00000000 0013BBB8 0013B288 005456A0 !<nosymbols>
012AFFB4 77E8B2D8 005456A0 0013BBB8 0013B288 005456A0 !beginthread
012AFFEC 00000000 00000000 00000000 00000000 00000000
kernel32!lstrcmpiW
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