Hi,all. There is a strange problem in my program using sipxtapi. I build
a ocx control with sipxtapi which is loaded by IE. But when i close IE,
system occasionally will blue screen and restart.
I have tested it from three phase as follow:
1. I create a new ocx project which just loads sipxtapi and adds two
method,one call sipxinitialize() and another call sipxuninitialize().
Sipxinitialize() method will be called when IE is opened and
sipxuninitialize() method is called before IE is closed. Unfortunately,
error occasionaly still occur.
2. I rebuild the same ocx project, not loading sipxtapi, reloaded by
IE. According to expectation, crash not occur.
3. Then, I create a new simple dialog project which samely load sipxtapi and
call sipxtinitialize() and sipxuninitialize() when dialog is opened and
closed. Strangely, error never occur by thousand of tests.
So, i guess sipxtapi is confilict with IE. But i do not know why.
Below is system dump file:
PAGE_FAULT_IN_NONPAGED_AREA (50)
Invalid system memory was referenced. This cannot be protected by
try-except,
it must be protected by a Probe. Typically the address is just plain bad or
it
is pointing at freed memory.
Arguments:
Arg1: bad0b148, memory referenced.
Arg2: 00000000, value 0 = read operation, 1 = write operation.
Arg3: 805648e3, If non-zero, the instruction address which referenced the
bad memory
address.
Arg4: 00000000, (reserved)
Debugging Details:
------------------
READ_ADDRESS: bad0b148
FAULTING_IP:
nt!ObpRemoveObjectRoutine+cb
805648e3 833800 cmp dword ptr [eax],0
MM_INTERNAL_CODE: 0
DEFAULT_BUCKET_ID: DRIVER_FAULT
BUGCHECK_STR: 0x50
PROCESS_NAME: System
TRAP_FRAME: f7b41cdc -- (.trap 0xfffffffff7b41cdc)
ErrCode = 00000000
eax=bad0b148 ebx=00000000 ecx=00000000 edx=822f5060 esi=822f5070
edi=00000000
eip=805648e3 esp=f7b41d50 ebp=f7b41d60 iopl=0 nv up ei ng nz na pe
nc
cs=0008 ss=0010 ds=0023 es=0023 fs=0030 gs=0000
efl=00010286
nt!ObpRemoveObjectRoutine+0xcb:
805648e3 833800 cmp dword ptr [eax],0
ds:0023:bad0b148=????????
Resetting default scope
LAST_CONTROL_TRANSFER: from 80524f44 to 8053431e
STACK_TEXT:
f7b41c78 80524f44 00000050 bad0b148 00000000 nt!KeBugCheckEx+0x1b
f7b41cc4 804e2718 00000000 bad0b148 00000000 nt!MmAccessFault+0x6f5
f7b41cc4 805648e3 00000000 bad0b148 00000000 nt!KiTrap0E+0xcc
f7b41d60 805737f6 822f5088 00000001 80560ba0 nt!ObpRemoveObjectRoutine+0xcb
f7b41d74 804e526b 00000000 00000000 82fb8b30
nt!ObpProcessRemoveObjectQueue+0x38
f7b41dac 8057ce15 00000000 00000000 00000000 nt!ExpWorkerThread+0x100
f7b41ddc 804fb4da 804e5196 00000000 00000000 nt!PspSystemThreadStartup+0x34
00000000 00000000 00000000 00000000 00000000 nt!KiThreadStartup+0x16
STACK_COMMAND: kb
FOLLOWUP_IP:
nt!ObpRemoveObjectRoutine+cb
805648e3 833800 cmp dword ptr [eax],0
SYMBOL_STACK_INDEX: 3
SYMBOL_NAME: nt!ObpRemoveObjectRoutine+cb
FOLLOWUP_NAME: MachineOwner
MODULE_NAME: nt
IMAGE_NAME: ntoskrnl.exe
DEBUG_FLR_IMAGE_TIMESTAMP: 42250ff9
FAILURE_BUCKET_ID: 0x50_BADMEMREF_nt!ObpRemoveObjectRoutine+cb
BUCKET_ID: 0x50_BADMEMREF_nt!ObpRemoveObjectRoutine+cb
Followup: MachineOwner
Anybody know the reason? I would greatly appreciate you for giving any idea.
LiZhang
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