bugcheck in infiniband bus driver

Hi

I got a few bugchecks during my test with Mellanox Infiniband Card as following, I am wondering if there are people from Mellanox in this list can help me? If yes please contact me.

Thanks
Tsang

1: kd> !analyze -v
*******************************************************************************
* *
* 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.
Arguments:
Arg1: fffff98006206ec0, memory referenced
Arg2: 0000000000000002, IRQL
Arg3: 0000000000000000, value 0 = read operation, 1 = write operation
Arg4: fffff880020166ed, address which referenced memory

Debugging Details:

READ_ADDRESS: fffff98006206ec0 Special pool

CURRENT_IRQL: 2

FAULTING_IP:
ibbus+166ed
fffff880`020166ed 8b83d0000000 mov eax,dword ptr [rbx+0D0h]

DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT

BUGCHECK_STR: 0xD1

PROCESS_NAME: System

TRAP_FRAME: fffff88005dc1910 -- (.trap 0xfffff88005dc1910)
NOTE: The trap frame does not contain all registers.
Some register values may be zeroed or incorrect.
rax=fffff98006142cd0 rbx=0000000000000000 rcx=fffff88002059780
rdx=fffff880020738e8 rsi=0000000000000000 rdi=0000000000000000
rip=fffff880020166ed rsp=fffff88005dc1aa0 rbp=fffff88002059110
r8=fffff98006206df0 r9=0000000000000000 r10=fffff80001b39440
r11=fffffa80060b60f0 r12=0000000000000000 r13=0000000000000000
r14=0000000000000000 r15=0000000000000000
iopl=0 nv up ei ng nz na po nc
ibbus+0x166ed:
fffff880`020166ed 8b83d0000000 mov eax,dword ptr [rbx+0D0h] ds:752c:00d0=????????
Resetting default scope

LAST_CONTROL_TRANSFER: from fffff80001685469 to fffff80001685f00

STACK_TEXT:
fffff88005dc17c8 fffff80001685469 : 000000000000000a fffff98006206ec0 0000000000000002 0000000000000000 : nt!KeBugCheckEx
fffff88005dc17d0 fffff800016840e0 : 0000000000000000 fffff98006206df0 0000000000000003 000000000000000b : nt!KiBugCheckDispatch+0x69
fffff88005dc1910 fffff880020166ed : fffff98006158b58 fffff98006158a02 fffff980080c6180 fffff98000000000 : nt!KiPageFault+0x260
fffff88005dc1aa0 fffff88002073670 : 0000000000000000 fffff88002088110 fffff88002088110 fffff980080c6180 : ibbus+0x166ed
fffff88005dc1ad0 fffff8800208062d : fffff98006158af0 fffff980080c6240 fffff98006158af0 fffff980080c6180 : ipoib+0x5670
fffff88005dc1b00 fffff88002077d12 : fffffa800456a730 fffff980080c61f8 fffff98006158af0 fffff980080c6180 : ipoib+0x1262d
fffff88005dc1c00 fffff880020839de : fffff980080c61f8 fffff980080c6180 fffff980080c6240 fffff98006158af0 : ipoib+0x9d12
fffff88005dc1c30 fffff88002083648 : fffff980080c6180 0000000000001002 fffff980080c6180 fffff80001b1d58b : ipoib+0x159de
fffff88005dc1c70 fffff8800207752c : fffffa800456a650 0000000000001002 fffff980080c6180 0000000000000001 : ipoib+0x15648
fffff88005dc1ca0 fffff8800207599d : fffff98006158af0 fffff98006158af0 0000000000001002 fffff980080c6180 : ipoib+0x952c
fffff88005dc1cd0 fffff88002083fa8 : fffff98006158f28 0000000000000080 fffffa80045f4890 0000000000000001 : ipoib+0x799d
fffff88005dc1d10 fffff80001929166 : 0000000000000010 fffff8000192910c 0000000000000010 0000000000010286 : ipoib+0x15fa8
fffff88005dc1d40 fffff80001664486 : fffff800017fee80 fffffa800616f680 fffffa8005bf7a00 fffff88001218534 : nt!PspSystemThreadStartup+0x5a
fffff88005dc1d80 0000000000000000 : fffff88005dc2000 fffff88005dbc000 fffff88005dc17d0 0000000000000000 : nt!KxStartSystemThread+0x16

STACK_COMMAND: kb

FOLLOWUP_IP:
ibbus+166ed
fffff880`020166ed 8b83d0000000 mov eax,dword ptr [rbx+0D0h]

SYMBOL_STACK_INDEX: 3

SYMBOL_NAME: ibbus+166ed

FOLLOWUP_NAME: MachineOwner

MODULE_NAME: ibbus

IMAGE_NAME: ibbus.sys

DEBUG_FLR_IMAGE_TIMESTAMP: 4a310850

FAILURE_BUCKET_ID: X64_0xD1_VRF_ibbus+166ed

BUCKET_ID: X64_0xD1_VRF_ibbus+166ed

Followup: MachineOwner

1: kd> lmvm ibbus
start end module name
fffff88002000000 fffff88002061000 ibbus (no symbols)
Loaded symbol image file: ibbus.sys
Image path: \SystemRoot\system32\DRIVERS\ibbus.sys
Image name: ibbus.sys
Timestamp: Thu Jun 11 09:36:16 2009 (4A310850)
CheckSum: 0006A567
ImageSize: 00061000
Translations: 0000.04b0 0000.04e4 0409.04b0 0409.04e4