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Article ID: 2528614 - Last Review: September 1, 2011 - Revision: 2.0

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SYMPTOMS

On a computer that is running Windows 7 or Windows Server 2008 R2, the operating system may crash intermittently. Additionally, you receive a Stop error message that resembles the following:
Stop 0x0000007E (parameter1, parameter2, parameter3, parameter4)
SYSTEM_THREAD_EXCEPTION_NOT_HANDLED
Notes
  • The parameters in this Stop error message vary, depending on the configuration of the computer.
  • Not all "0x0000007E" Stop error messages are caused by this issue.
  • This issue usually occurs on a file server, and does not occur when Server Message Block (SMB) Version 2 is disabled.

CAUSE

This issue occurs because of a race condition that is triggered when a NULL lease handle is accessed after the lease spinlock is released.

RESOLUTION

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support (http://support.microsoft.com/contactus/?ws=support)
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, you must be running one of the following operating systems:
  • Windows 7
  • Windows 7 Service Pack 1 (SP1)
  • Windows Server 2008 R2
  • Windows Server 2008 R2 Service Pack 1 (SP1)
For more information about how to obtain a Windows 7 or a Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
976932  (http://support.microsoft.com/kb/976932/ ) Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To use the hotfix in this package, you do not have to make any changes to the registry.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.
Windows 7 and Windows Server 2008 R2 file information notes
  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:
    Collapse this tableExpand this table
    VersionProductMilestoneService branch
    6.1.760 0.20xxxWindows 7 and Windows Server 2008 R2RTMLDR
    6.1.760 1.21xxxWindows 7 and Windows Server 2008 R2SP1LDR
  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008 R2 and for Windows 7" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.
For all supported x86-based versions of Windows 7
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Srv2.sys6.1.7600.20996311,80825-Jun-201103:29x86
Srv2.sys6.1.7601.21757311,80825-Jun-201104:19x86
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Srv2.sys6.1.7600.20996399,87225-Jun-201103:44x64
Srv2.sys6.1.7601.21757409,08825-Jun-201103:22x64
For all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Srv2.sys6.1.7600.20996792,06425-Jun-201102:55IA-64
Srv2.sys6.1.7601.21757792,06425-Jun-201102:51IA-64

STATUS

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

MORE INFORMATION

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684  (http://support.microsoft.com/kb/824684/ ) Description of the standard terminology that is used to describe Microsoft software updates

Additional file information

Additional file information for Windows 7 and for Windows Server 2008 R2

Additional files for all supported x86-based versions of Windows 7
Collapse this tableExpand this table
File nameUpdate.mum
File versionNot applicable
File size2,342
Date (UTC)25-Jun-2011
Time (UTC)10:00
PlatformNot applicable
File nameX86_294443657370dba025e06dd3b3107c18_31bf3856ad364e35_6.1.7600.20996_none_a17a4b5d8ff2486a.manifest
File versionNot applicable
File size700
Date (UTC)25-Jun-2011
Time (UTC)10:00
PlatformNot applicable
File nameX86_e0b74f25a1d68b0d7785b746f138121a_31bf3856ad364e35_6.1.7601.21757_none_42dff753b11b7a7c.manifest
File versionNot applicable
File size700
Date (UTC)25-Jun-2011
Time (UTC)10:00
PlatformNot applicable
File nameX86_microsoft-windows-smbserver-v2_31bf3856ad364e35_6.1.7600.20996_none_da42c63970f4100c.manifest
File versionNot applicable
File size2,655
Date (UTC)25-Jun-2011
Time (UTC)06:14
PlatformNot applicable
File nameX86_microsoft-windows-smbserver-v2_31bf3856ad364e35_6.1.7601.21757_none_dc5563396df9258b.manifest
File versionNot applicable
File size2,655
Date (UTC)25-Jun-2011
Time (UTC)07:38
PlatformNot applicable
Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameAmd64_705b7d9fb829dc86e62a804fa4669d12_31bf3856ad364e35_6.1.7600.20996_none_0290e9ac2428470e.manifest
File versionNot applicable
File size704
Date (UTC)25-Jun-2011
Time (UTC)10:00
PlatformNot applicable
File nameAmd64_f31699b276f3b50740b7a70f8cb73679_31bf3856ad364e35_6.1.7601.21757_none_4c863e5ac5c02ef2.manifest
File versionNot applicable
File size704
Date (UTC)25-Jun-2011
Time (UTC)10:00
PlatformNot applicable
File nameAmd64_microsoft-windows-smbserver-v2_31bf3856ad364e35_6.1.7600.20996_none_366161bd29518142.manifest
File versionNot applicable
File size2,657
Date (UTC)25-Jun-2011
Time (UTC)07:05
PlatformNot applicable
File nameAmd64_microsoft-windows-smbserver-v2_31bf3856ad364e35_6.1.7601.21757_none_3873febd265696c1.manifest
File versionNot applicable
File size2,657
Date (UTC)25-Jun-2011
Time (UTC)08:08
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size2,780
Date (UTC)25-Jun-2011
Time (UTC)10:00
PlatformNot applicable
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameIa64_01801e97e79f6a38a756fcc384b1193d_31bf3856ad364e35_6.1.7600.20996_none_7c52da6c9ca8096b.manifest
File versionNot applicable
File size702
Date (UTC)25-Jun-2011
Time (UTC)10:00
PlatformNot applicable
File nameIa64_81989cd136f8b80181aa3807f1f3274c_31bf3856ad364e35_6.1.7601.21757_none_d624d511c4c14b84.manifest
File versionNot applicable
File size702
Date (UTC)25-Jun-2011
Time (UTC)10:00
PlatformNot applicable
File nameIa64_microsoft-windows-smbserver-v2_31bf3856ad364e35_6.1.7600.20996_none_da446a2f70f21908.manifest
File versionNot applicable
File size2,656
Date (UTC)25-Jun-2011
Time (UTC)06:58
PlatformNot applicable
File nameIa64_microsoft-windows-smbserver-v2_31bf3856ad364e35_6.1.7601.21757_none_dc57072f6df72e87.manifest
File versionNot applicable
File size2,656
Date (UTC)25-Jun-2011
Time (UTC)08:16
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size2,168
Date (UTC)25-Jun-2011
Time (UTC)10:00
PlatformNot applicable

APPLIES TO
  • Windows 7 Enterprise
  • Windows 7 Professional
  • Windows 7 Ultimate
  • Windows Server 2008 R2 Datacenter
  • Windows Server 2008 R2 Enterprise
  • Windows Server 2008 R2 for Itanium-Based Systems
  • Windows Server 2008 R2 Foundation
  • Windows Server 2008 R2 Standard
  • Windows Web Server 2008 R2
Keywords: 
kbautohotfix kbqfe kbhotfixserver kbfix kbsurveynew kbexpertiseinter KB2528614
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