FIX: Stop error on a server that is running Forefront Threat Management Gateway 2010: "IRQL_NOT_LESS_OR_EQUAL (a)"

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Article ID: 2591837 - View products that this article applies to.
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SYMPTOMS

A server that is running Microsoft Forefront Threat Management Gateway (TMG) 2010 may crash with the following Stop error:
IRQL_NOT_LESS_OR_EQUAL (a)
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 a kernel debugger is available get the stack backtrace.
Arguments:
Arg1: fffff98000000080, memory referenced
Arg2: 0000000000000002, IRQL
Arg3: 0000000000000000, bitfield :
bit 0 : value 0 = read operation, 1 = write operation
bit 3 : value 0 = not an execute operation, 1 = execute operation (only on chips which support this level of status)
Arg4: fffff80001ba38e8, address which referenced memory

RESOLUTION

To resolve this problem, install the service pack that is described in the following Microsoft Knowledge Base article:
2555840 Description of Service Pack 2 for Microsoft Forefront Threat Management Gateway 2010

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

REFERENCES

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates

Properties

Article ID: 2591837 - Last Review: October 31, 2011 - Revision: 2.0
APPLIES TO
  • Microsoft Forefront Threat Management Gateway 2010 Enterprise
  • Microsoft Forefront Threat Management Gateway 2010 Standard
  • Microsoft Forefront Threat Management Gateway 2010 Service Pack 1
Keywords: 
kbfix kbbug kbexpertiseinter kbsurveynew KB2591837

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