My first post! FAILURE_BUCKET_ID: IP_MISALIGNED_atapi.sys - Rebooting

[happyjohnny]

Hi Guys,

This is my very first post here! - I look forward to many more posts and adding to the support community when and where I can.

I'm having a problem with a computer I'm working on and just wondering if anyone has any ideas on what the exact problem is and how to fix it...

Ran hijackthis and cleared out everything that wasn't essential.

Ran pc through Memtest and passing multiple tests without error

Gave the computer a standard spyware and virus check with nothing serious.

ok... the problem

The computer will intermittantly reboot itself / BSOD
I've attached a handfull of minidumps centred around the problem - looks like it could be pointing to atapi.sys

Bugcheck Analysis:
DRIVER_IRQL_NOT_LESS_OR_EQUAL (d1)
An attempt was made to access a pageable (or completely invalid) address at an
interrupt request level (IRQL) that is too high. This is usually
caused by drivers using improper addresses.
If kernel debugger is available get stack backtrace.

FAULTING_MODULE: 804d7000 nt

DEBUG_FLR_IMAGE_TIMESTAMP: 0

READ_ADDRESS: unable to get nt!MmSpecialPoolStart
unable to get nt!MmSpecialPoolEnd
unable to get nt!MmPoolCodeStart
unable to get nt!MmPoolCodeEnd
ffffffd5

CURRENT_IRQL: 5

FAULTING_IP:
atapi+5600
baf48600 d874118b fdiv dword ptr [ecx+edx-75h]

CUSTOMER_CRASH_COUNT: 1

DEFAULT_BUCKET_ID: DRIVER_FAULT

BUGCHECK_STR: 0xD1

MISALIGNED_IP:
atapi+5600
baf48600 d874118b fdiv dword ptr [ecx+edx-75h]

LAST_CONTROL_TRANSFER: from f87622d2 to baf48600

STACK_TEXT:
WARNING: Stack unwind information not available. Following frames may be wrong.
80550140 f87622d2 badb0d00 00000048 ffdffc70 atapi+0x5600
805501d0 804dbb37 00000000 0000000e 00000000 p3+0x22d2
805501d4 00000000 0000000e 00000000 00000000 nt+0x4b37

STACK_COMMAND: kb

FOLLOWUP_IP:
atapi+5600
baf48600 d874118b fdiv dword ptr [ecx+edx-75h]

SYMBOL_STACK_INDEX: 0

FOLLOWUP_NAME: MachineOwner

IMAGE_NAME: hardware

SYMBOL_NAME: atapi+5600

MODULE_NAME: hardware

FAILURE_BUCKET_ID: IP_MISALIGNED_atapi.sys

BUCKET_ID: IP_MISALIGNED_atapi.sys

Followup: MachineOwner


Can you help? Any ideas of what the fault could be and any solutions? - I have my suspicions but would like some extra opinions please

Many thanks

Johnny

 

[smore9648]

Its your CD/DVD Rom.

 

[happyjohnny]

Thanks for your reply smore9648; however I have since replaced the CD Rom and the problem is still happening.

Does anyone else have any ideas?

Could this be a driver fault?

 

[happyjohnny]

Does anyone have any other ideas? - please

 

[smore9648]

Have you updated your firmware?

 

[happyjohnny]

No - haven't updated the firmware... which component are you referring to? I've already replaced the CD Rom.

 

[peterdiva]

The ones that aren't caused by atapi.sys are caused by portcls.sys. Try updating the onboard sound drivers.