Resolved BOSD caused by "c:\websymbols\ntkrpamp..."?

I'm using Win7 Ultimate 32bit, and it crashed every 1 or 2 days. When the same computer runs Windows 2008 sp1 x64, it was very stable.
Here is Windbg result, Thank you for your help!


Microsoft (R) Windows Debugger Version 6.12.0002.633 X86
Copyright (c) Microsoft Corporation. All rights reserved.


Loading Dump File [C:\Users\Gavin\Desktop\071810-18267-01.dmp]
Mini Kernel Dump File: Only registers and stack trace are available

Symbol search path is: SRV*c:\websymbols*http://msdl.microsoft.com/download/symbols
Executable search path is:
Windows 7 Kernel Version 7600 MP (2 procs) Free x86 compatible
Product: WinNt, suite: TerminalServer SingleUserTS
Built by: 7600.16539.x86fre.win7_gdr.100226-1909
Machine Name:
Kernel base = 0x84248000 PsLoadedModuleList = 0x84390810
Debug session time: Sun Jul 18 07:50:49.962 2010 (UTC + 8:00)
System Uptime: 0 days 0:53:16.024
Loading Kernel Symbols
...............................................................
................................................................
.....................
Loading User Symbols
Loading unloaded module list
......
0: kd> !analyze -v
*******************************************************************************
* *
* Bugcheck Analysis *
* *
*******************************************************************************

ATTEMPTED_SWITCH_FROM_DPC (b8)
A wait operation, attach process, or yield was attempted from a DPC routine.
This is an illegal operation and the stack track will lead to the offending
code and original DPC routine.
Arguments:
Arg1: 860be5d8, Original thread which is the cause of the failure
Arg2: 86316030, New thread
Arg3: b0f2dfd0, Stack address of the original thread
Arg4: 00000000

Debugging Details:
------------------


FAULTING_THREAD: 860be5d8

CUSTOMER_CRASH_COUNT: 1

DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT

BUGCHECK_STR: 0xB8

PROCESS_NAME: iexplore.exe

CURRENT_IRQL: 2

LAST_CONTROL_TRANSFER: from 842afcfd to 84324d10

STACK_TEXT:
99d17cc0 842afcfd 000000b8 860be5d8 86316030 nt!KeBugCheckEx+0x1e
99d17cec 84216924 99d17d34 86951284 00200006 nt!SwapContext_XRstorEnd+0x105
99d17d00 84216b29 84371c02 99d17d34 30a972d8 hal!HalpDispatchSoftwareInterrupt+0x5e
99d17d18 84216cc3 86d55008 99d17d34 842874f3 hal!HalpCheckForSoftwareInterrupt+0x83
99d17d24 842874f3 00000000 00000092 067cb728 hal!HalEndSystemInterrupt+0x67
99d17d24 6abea617 00000000 00000092 067cb728 nt!KiChainedDispatch+0x73
WARNING: Frame IP not in any known module. Following frames may be wrong.
067cb728 00000000 00000000 00000000 00000000 0x6abea617


STACK_COMMAND: .thread 0xffffffff860be5d8 ; kb

FOLLOWUP_IP:
nt!SwapContext_XRstorEnd+105
842afcfd c3 ret

SYMBOL_STACK_INDEX: 1

SYMBOL_NAME: nt!SwapContext_XRstorEnd+105

FOLLOWUP_NAME: MachineOwner

MODULE_NAME: nt



IMAGE_NAME: ntkrpamp.exe

DEBUG_FLR_IMAGE_TIMESTAMP: 4b88cacf

FAILURE_BUCKET_ID: 0xB8_nt!SwapContext_XRstorEnd+105

BUCKET_ID: 0xB8_nt!SwapContext_XRstorEnd+105

Followup: MachineOwner
---------

0: kd> lmvm nt
start end module name
84248000 84658000 nt (pdb symbols) c:\websymbols\ntkrpamp.pdb\A0D85B412D774C83B08EF4AE749A8B582\ntkrpamp.pdb
Loaded symbol image file: ntkrpamp.exe
Mapped memory image file: c:\websymbols\ntkrnlpa.exe\4B88CACF410000\ntkrnlpa.exe
Image path: ntkrpamp.exe
Image name: ntkrpamp.exe
Timestamp: Sat Feb 27 15:33:35 2010 (4B88CACF)
CheckSum: 003C7867
ImageSize: 00410000
File version: 6.1.7600.16539
Product version: 6.1.7600.16539
File flags: 0 (Mask 3F)
File OS: 40004 NT Win32
File type: 1.0 App
File date: 00000000.00000000
Translations: 0409.04b0
CompanyName: Microsoft Corporation
ProductName: Microsoft® Windows® Operating System
InternalName: ntkrpamp.exe
OriginalFilename: ntkrpamp.exe
ProductVersion: 6.1.7600.16539
FileVersion: 6.1.7600.16539 (win7_gdr.100226-1909)
FileDescription: NT Kernel & System
LegalCopyright: © Microsoft Corporation. All rights reserved.

 

After I remove all Acronis products， BOSD never happened again. Thank you!