Tuesday, October 18, 2022

A memory leak in nonpaged pool memory occurs in Windows Server 2008 R2 [MS]

Symptoms

When a file server is running Windows Server 2008 R2, a memory leak in nonpaged pool memory may occur. This problem occurs when the server is under heavy load and continues to occur until it stops responding and pool memory is exhausted.

Cause

This problem occurs because of a race condition in the SMB server.

Resolution

To resolve this problem, apply the hotfix that is described in the "More information" section.

Hotfix information

A supported hotfix is available from Microsoft Support. 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, go to the following Microsoft website:

http://support.microsoft.com/contactus/?ws=supportNote 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 have Service Pack 1 for Windows Server 2008 R2 installed.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any previously released hotfix.

The English (United States) 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 and notesImportant Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • The files that apply to a specific product, SR_Level (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.

    Version

    Product

    SR_Level

    Service branch

    6.1.760
    1.
    22xxx

    Windows 7 and Windows Server 2008 R2

    SP1

    LDR

  • GDR service branches contain only those fixes that are widely released to address widespread, extremely important issues. LDR service branches contain hotfixes in addition to widely released fixes.

  • 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 7 and Windows Server 2008 R2" 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

File name

File version

File size

Date

Time

Platform

Srv2.sys

6.1.7601.22824

313,856

30-Sep-2014

00:33

x86

For all supported x64-based versions of Windows 7 and Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Srv2.sys

6.1.7601.22824

406,016

30-Sep-2014

00:46

x64

For all supported IA-64-based versions of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Srv2.sys

6.1.7601.22824

799,232

30-Sep-2014

00:24

IA-64

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

Additional files for all supported x86-based versions of Windows 7

File name

Package_1_for_kb3002301~31bf3856ad364e35~x86~~6.1.2.0.mum

File version

Not applicable

File size

1,806

Date (UTC)

30-Sep-2014

Time (UTC)

19:05

File name

Package_2_for_kb3002301~31bf3856ad364e35~x86~~6.1.2.0.mum

File version

Not applicable

File size

1,808

Date (UTC)

30-Sep-2014

Time (UTC)

19:05

File name

Package_for_kb3002301_sp1~31bf3856ad364e35~x86~~6.1.2.0.mum

File version

Not applicable

File size

1,918

Date (UTC)

30-Sep-2014

Time (UTC)

19:05

File name

X86_cbf2fe724b26f3aff2c7e937434dca24_31bf3856ad364e35_6.1.7601.22824_none_8b4696861e43e020.manifest

File version

Not applicable

File size

700

Date (UTC)

30-Sep-2014

Time (UTC)

19:05

File name

X86_microsoft-windows-smbserver-v2_31bf3856ad364e35_6.1.7601.22824_none_dc72bd3d6de39c7b.manifest

File version

Not applicable

File size

2,655

Date (UTC)

30-Sep-2014

Time (UTC)

02:09

Additional files for all supported x64-based versions of Windows 7 and Windows Server 2008 R2

File name

Amd64_24f0bcbc81a74935dc8819b5e1b12b06_31bf3856ad364e35_6.1.7601.22824_none_4ad2d73d0cf9c98b.manifest

File version

Not applicable

File size

704

Date (UTC)

30-Sep-2014

Time (UTC)

19:05

File name

Amd64_microsoft-windows-smbserver-v2_31bf3856ad364e35_6.1.7601.22824_none_389158c126410db1.manifest

File version

Not applicable

File size

2,657

Date (UTC)

30-Sep-2014

Time (UTC)

02:27

File name

Package_1_for_kb3002301~31bf3856ad364e35~amd64~~6.1.2.0.mum

File version

Not applicable

File size

2,016

Date (UTC)

30-Sep-2014

Time (UTC)

19:05

File name

Package_2_for_kb3002301~31bf3856ad364e35~amd64~~6.1.2.0.mum

File version

Not applicable

File size

1,818

Date (UTC)

30-Sep-2014

Time (UTC)

19:05

File name

Package_for_kb3002301_sp1~31bf3856ad364e35~amd64~~6.1.2.0.mum

File version

Not applicable

File size

2,130

Date (UTC)

30-Sep-2014

Time (UTC)

19:05

Additional files for all supported IA-64-based versions of Windows Server 2008 R2

File name

Ia64_c1af280a8eb8fee52d630d62a4127a8c_31bf3856ad364e35_6.1.7601.22824_none_d6a3a276ac076cbe.manifest

File version

Not applicable

File size

702

Date (UTC)

30-Sep-2014

Time (UTC)

19:05

File name

Ia64_microsoft-windows-smbserver-v2_31bf3856ad364e35_6.1.7601.22824_none_dc7461336de1a577.manifest

File version

Not applicable

File size

2,656

Date (UTC)

30-Sep-2014

Time (UTC)

02:01

File name

Package_1_for_kb3002301~31bf3856ad364e35~ia64~~6.1.2.0.mum

File version

Not applicable

File size

1,811

Date (UTC)

30-Sep-2014

Time (UTC)

19:05

File name

Package_for_kb3002301_sp1~31bf3856ad364e35~ia64~~6.1.2.0.mum

File version

Not applicable

File size

1,446

Date (UTC)

30-Sep-2014

Time (UTC)

19:05


Workaround

To work around this problem, restart Windows Server 2008 R2.

Status

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

References

Learn about the terminology that Microsoft uses to describe software updates.

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