Deadlock makes server farm sites unavailable when a backup job fails

Symptoms

Consider the following scenario:

  • You run Microsoft System Center Data Protection Manager (DPM), and you install the DPM agents on Microsoft SharePoint farm servers.

  • You create a DPM protection group to protect this SharePoint farm.

  • You run a backup job.


In this scenario, the backup fails intermittently, and SQL Writer experiences a deadlock condition that leaves sites in the server farm unavailable.

Note This deadlock condition may occur when other requestors outside DPM are used. Additional services outside SharePoint may also be affected.

Resolution

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 be running one of the following operating systems:

  • Windows 7 Service Pack 1 (SP1)

  • Windows Server 2008 R2 Service Pack 1 (SP1)

  • Windows 8

  • Windows Server 2012

  • Windows 8.1

  • Windows Server 2012 R2


Learn about how to obtain Service Pack 1 for Windows 7 and for Windows Server 2008 R2.


To apply this update on Windows 8.1 or Windows Server 2012 R2, you must first install update 2919355.

Restart requirement

You do not have to 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

Vssapi.dll

6.1.7601.22680

1,128,448

09-May-2014

05:45

x86

Vsstrace.dll

6.1.7601.22680

56,320

09-May-2014

05:45

x86

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

File name

File version

File size

Date

Time

Platform

Vssapi.dll

6.1.7601.22680

1,753,600

09-May-2014

06:19

x64

Vsstrace.dll

6.1.7601.22680

76,800

09-May-2014

06:19

x64

Vssapi.dll

6.1.7601.22680

1,128,448

09-May-2014

05:45

x86

Vsstrace.dll

6.1.7601.22680

56,320

09-May-2014

05:45

x86

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

File name

File version

File size

Date

Time

Platform

Eventcls.dll

6.1.7601.22680

31,232

09-May-2014

05:23

IA-64

Vssapi.dll

6.1.7601.22680

2,514,432

09-May-2014

05:23

IA-64

Vsstrace.dll

6.1.7601.22680

123,904

09-May-2014

05:23

IA-64

Eventcls.dll

6.1.7601.22680

16,896

09-May-2014

05:45

x86

Vssapi.dll

6.1.7601.22680

1,128,448

09-May-2014

05:45

x86

Vsstrace.dll

6.1.7601.22680

56,320

09-May-2014

05:45

x86

Windows 8 and Windows Server 2012 file information and notesImportant Windows 8 and Windows Server 2012 hotfixes are included in the same packages. However, only "Windows 8" is listed on the Hotfix Request page. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 8" 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, milestone (RTM,SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.

    Version

    Product

    Milestone

    Service branch

    6.2.920 0.20 xxx

    Windows 8 and Windows Server 2012

    RTM

    LDR

    6.2.920 0.21 xxx

    Windows 8 and Windows Server 2012

    RTM

    LDR

  • 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 8 and Windows Server 2012" 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 8

File name

File version

File size

Date

Time

Platform

75dfb225-e2e4-4d39-9ac9-ffaff65ddf06.xml

Not Applicable

2,776

06-Jul-2012

20:20

Not Applicable

Eventcls.dll

6.2.9200.20521

15,360

20-Sep-2012

05:54

x86

Vssapi.dll

6.2.9200.21040

1,196,032

13-May-2014

00:05

x86

Vsstrace.dll

6.2.9200.20521

52,224

20-Sep-2012

05:55

x86

For all supported x64-based versions of Windows 8 and of Windows Server 2012

File name

File version

File size

Date

Time

Platform

75dfb225-e2e4-4d39-9ac9-ffaff65ddf06.xml

Not Applicable

2,776

06-Jul-2012

20:20

Not Applicable

Eventcls.dll

6.2.9200.20521

17,408

20-Sep-2012

06:30

x64

Vssapi.dll

6.2.9200.21040

1,513,984

13-May-2014

00:04

x64

Vsstrace.dll

6.2.9200.20521

69,632

20-Sep-2012

06:32

x64

Eventcls.dll

6.2.9200.20521

15,360

20-Sep-2012

05:54

x86

Vssapi.dll

6.2.9200.21040

1,196,032

13-May-2014

00:05

x86

Vsstrace.dll

6.2.9200.20521

52,224

20-Sep-2012

05:55

x86

Windows 8.1 and Windows Server 2012 R2 file information and notesImportant Windows 8.1 and Windows Server 2012 R2 hotfixes are included in the same packages. However, only "Windows 8.1" is listed on the Hotfix Request page. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 8.1" 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, milestone (RTM,SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.

    Version

    Product

    Milestone

    Service branch

    6.3.960 0.16 xxx

    Windows 8.1 and Windows Server 2012 R2

    RTM

    GDR

    6.3.960 0.17 xxx

    Windows 8.1 and Windows Server 2012 R2

    RTM

    GDR

  • 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 8.1 and Windows Server 2012 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 8.1

File name

File version

File size

Date

Time

Platform

Vssapi.dll

6.3.9600.17120

1,117,696

10-May-2014

03:21

x86

For all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2

File name

File version

File size

Date

Time

Platform

Eventcls.dll

6.3.9600.16384

15,872

22-Aug-2013

03:49

x86

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

File name

Package_1_for_kb2964441~31bf3856ad364e35~x86~~6.1.1.0.mum

File version

Not Applicable

File size

1,817

Date (UTC)

13-May-2014

Time (UTC)

18:44

Platform

Not Applicable

File name

Package_2_for_kb2964441~31bf3856ad364e35~x86~~6.1.1.0.mum

File version

Not Applicable

File size

1,800

Date (UTC)

13-May-2014

Time (UTC)

18:44

Platform

Not Applicable

File name

Package_3_for_kb2964441~31bf3856ad364e35~x86~~6.1.1.0.mum

File version

Not Applicable

File size

1,802

Date (UTC)

13-May-2014

Time (UTC)

18:44

Platform

Not Applicable

File name

Package_for_kb2964441_rtm~31bf3856ad364e35~x86~~6.1.1.0.mum

File version

Not Applicable

File size

1,459

Date (UTC)

13-May-2014

Time (UTC)

18:44

Platform

Not Applicable

File name

Package_for_kb2964441_sp1~31bf3856ad364e35~x86~~6.1.1.0.mum

File version

Not Applicable

File size

1,918

Date (UTC)

13-May-2014

Time (UTC)

18:44

Platform

Not Applicable

File name

X86_7abcfebd61f411b5cc4d05812064089a_31bf3856ad364e35_6.1.7601.22680_none_22f3ace3df6ef29e.manifest

File version

Not Applicable

File size

694

Date (UTC)

13-May-2014

Time (UTC)

18:44

Platform

Not Applicable

File name

X86_microsoft-windows-vssapi_31bf3856ad364e35_6.1.7601.22680_none_d7281da2f95ddbff.manifest

File version

Not Applicable

File size

12,389

Date (UTC)

13-May-2014

Time (UTC)

18:48

Platform

Not Applicable

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

File name

Amd64_3c05a8c4b08dbdacbd4b5283257a503e_31bf3856ad364e35_6.1.7601.22680_none_90afc07d33aadf67.manifest

File version

Not Applicable

File size

1,038

Date (UTC)

13-May-2014

Time (UTC)

18:44

Platform

Not Applicable

File name

Amd64_a99c967a0af8e5c51a31f6d2b5f1a4e4_31bf3856ad364e35_6.1.7601.22680_none_8314cdf2ad9fa97a.manifest

File version

Not Applicable

File size

698

Date (UTC)

13-May-2014

Time (UTC)

18:44

Platform

Not Applicable

File name

Amd64_bfe1bddf535053bfe836229150f76016_31bf3856ad364e35_6.1.7601.22680_none_9166e82fc071bd7c.manifest

File version

Not Applicable

File size

698

Date (UTC)

13-May-2014

Time (UTC)

18:44

Platform

Not Applicable

File name

Amd64_microsoft-windows-vssapi_31bf3856ad364e35_6.1.7601.22680_none_3346b926b1bb4d35.manifest

File version

Not Applicable

File size

12,393

Date (UTC)

13-May-2014

Time (UTC)

18:51

Platform

Not Applicable

File name

Package_1_for_kb2964441~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not Applicable

File size

1,827

Date (UTC)

13-May-2014

Time (UTC)

18:44

Platform

Not Applicable

File name

Package_2_for_kb2964441~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not Applicable

File size

1,810

Date (UTC)

13-May-2014

Time (UTC)

18:44

Platform

Not Applicable

File name

Package_3_for_kb2964441~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not Applicable

File size

2,010

Date (UTC)

13-May-2014

Time (UTC)

18:44

Platform

Not Applicable

File name

Package_4_for_kb2964441~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not Applicable

File size

2,026

Date (UTC)

13-May-2014

Time (UTC)

18:44

Platform

Not Applicable

File name

Package_for_kb2964441_rtm~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not Applicable

File size

1,467

Date (UTC)

13-May-2014

Time (UTC)

18:44

Platform

Not Applicable

File name

Package_for_kb2964441_sp1~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not Applicable

File size

2,408

Date (UTC)

13-May-2014

Time (UTC)

18:44

Platform

Not Applicable

File name

Wow64_microsoft-windows-vssapi_31bf3856ad364e35_6.1.7601.22680_none_3d9b6378e61c0f30.manifest

File version

Not Applicable

File size

11,453

Date (UTC)

13-May-2014

Time (UTC)

18:51

Platform

Not Applicable

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

File name

Ia64_74078954239161708c0badaef05efce2_31bf3856ad364e35_6.1.7601.22680_none_471e7872db1af339.manifest

File version

Not Applicable

File size

1,036

Date (UTC)

13-May-2014

Time (UTC)

18:44

Platform

Not Applicable

File name

Ia64_microsoft-windows-vssapi_31bf3856ad364e35_6.1.7601.22680_none_d729c198f95be4fb.manifest

File version

Not Applicable

File size

12,066

Date (UTC)

09-May-2014

Time (UTC)

06:05

Platform

Not Applicable

File name

Package_1_for_kb2964441~31bf3856ad364e35~ia64~~6.1.1.0.mum

File version

Not Applicable

File size

2,019

Date (UTC)

13-May-2014

Time (UTC)

18:44

Platform

Not Applicable

File name

Package_for_kb2964441_sp1~31bf3856ad364e35~ia64~~6.1.1.0.mum

File version

Not Applicable

File size

1,446

Date (UTC)

13-May-2014

Time (UTC)

18:44

Platform

Not Applicable

File name

Wow64_microsoft-windows-vssapi_31bf3856ad364e35_6.1.7601.22680_none_3d9b6378e61c0f30.manifest

File version

Not Applicable

File size

11,065

Date (UTC)

09-May-2014

Time (UTC)

06:04

Platform

Not Applicable

Additional file information for Windows 8 and for Windows Server 2012

Additional files for all supported x86-based versions of Windows 8

File name

Package_1_for_kb2964441~31bf3856ad364e35~x86~~6.2.1.0.mum

File version

Not Applicable

File size

1,807

Date (UTC)

13-May-2014

Time (UTC)

18:58

Platform

Not Applicable

File name

Package_2_for_kb2964441~31bf3856ad364e35~x86~~6.2.1.0.mum

File version

Not Applicable

File size

1,809

Date (UTC)

13-May-2014

Time (UTC)

18:58

Platform

Not Applicable

File name

Package_3_for_kb2964441~31bf3856ad364e35~x86~~6.2.1.0.mum

File version

Not Applicable

File size

1,802

Date (UTC)

13-May-2014

Time (UTC)

18:58

Platform

Not Applicable

File name

Package_for_kb2964441_rtm~31bf3856ad364e35~x86~~6.2.1.0.mum

File version

Not Applicable

File size

2,408

Date (UTC)

13-May-2014

Time (UTC)

18:58

Platform

Not Applicable

File name

X86_162d2fa0ef89c2632f38880844d6e69b_31bf3856ad364e35_6.2.9200.21041_none_375423684af97ea7.manifest

File version

Not Applicable

File size

694

Date (UTC)

13-May-2014

Time (UTC)

18:58

Platform

Not Applicable

File name

X86_microsoft-windows-vssapi_31bf3856ad364e35_6.2.9200.21041_none_d243a76e6c287915.manifest

File version

Not Applicable

File size

11,914

Date (UTC)

13-May-2014

Time (UTC)

18:58

Platform

Not Applicable

Additional files for all supported x64-based versions of Windows 8 and of Windows Server 2012

File name

Amd64_0cb1aff8519205925eeb551771fafa6d_31bf3856ad364e35_6.2.9200.21041_none_bdf6d8e1e51f0dab.manifest

File version

Not Applicable

File size

1,038

Date (UTC)

13-May-2014

Time (UTC)

19:50

Platform

Not Applicable

File name

Amd64_65a8a9ce24f575dd995c09605277253e_31bf3856ad364e35_6.2.9200.21041_none_b5825538cc34c66e.manifest

File version

Not Applicable

File size

698

Date (UTC)

13-May-2014

Time (UTC)

19:50

Platform

Not Applicable

File name

Amd64_cb5ee1e8d076130ecd052065662e79ff_31bf3856ad364e35_6.2.9200.21041_none_be68424cc085826a.manifest

File version

Not Applicable

File size

698

Date (UTC)

13-May-2014

Time (UTC)

19:50

Platform

Not Applicable

File name

Amd64_microsoft-windows-vssapi_31bf3856ad364e35_6.2.9200.21041_none_2e6242f22485ea4b.manifest

File version

Not Applicable

File size

11,918

Date (UTC)

13-May-2014

Time (UTC)

19:50

Platform

Not Applicable

File name

Package_1_for_kb2964441~31bf3856ad364e35~amd64~~6.2.1.0.mum

File version

Not Applicable

File size

1,817

Date (UTC)

13-May-2014

Time (UTC)

19:50

Platform

Not Applicable

File name

Package_2_for_kb2964441~31bf3856ad364e35~amd64~~6.2.1.0.mum

File version

Not Applicable

File size

2,271

Date (UTC)

13-May-2014

Time (UTC)

19:50

Platform

Not Applicable

File name

Package_3_for_kb2964441~31bf3856ad364e35~amd64~~6.2.1.0.mum

File version

Not Applicable

File size

2,262

Date (UTC)

13-May-2014

Time (UTC)

19:50

Platform

Not Applicable

File name

Package_4_for_kb2964441~31bf3856ad364e35~amd64~~6.2.1.0.mum

File version

Not Applicable

File size

2,026

Date (UTC)

13-May-2014

Time (UTC)

19:50

Platform

Not Applicable

File name

Package_for_kb2964441_rtm~31bf3856ad364e35~amd64~~6.2.1.0.mum

File version

Not Applicable

File size

3,365

Date (UTC)

13-May-2014

Time (UTC)

19:50

Platform

Not Applicable

File name

Wow64_microsoft-windows-vssapi_31bf3856ad364e35_6.2.9200.21041_none_38b6ed4458e6ac46.manifest

File version

Not Applicable

File size

10,915

Date (UTC)

13-May-2014

Time (UTC)

19:50

Platform

Not Applicable

Additional file information for Windows 8.1 and for Windows Server 2012 R2

Additional files for all supported x86-based versions of Windows 8.1

File name

Package_1_for_kb2964441~31bf3856ad364e35~x86~~6.3.1.0.mum

File version

Not Applicable

File size

1,807

Date (UTC)

13-May-2014

Time (UTC)

18:38

Platform

Not Applicable

File name

Package_2_for_kb2964441~31bf3856ad364e35~x86~~6.3.1.0.mum

File version

Not Applicable

File size

1,821

Date (UTC)

13-May-2014

Time (UTC)

18:38

Platform

Not Applicable

File name

Package_for_kb2964441_rtm_gm~31bf3856ad364e35~x86~~6.3.1.0.mum

File version

Not Applicable

File size

1,681

Date (UTC)

13-May-2014

Time (UTC)

18:38

Platform

Not Applicable

File name

Package_for_kb2964441_rtm~31bf3856ad364e35~x86~~6.3.1.0.mum

File version

Not Applicable

File size

1,673

Date (UTC)

13-May-2014

Time (UTC)

18:38

Platform

Not Applicable

File name

X86_826fc0332232c6deab8fbc5a3b1aa968_31bf3856ad364e35_6.3.9600.17120_none_4595c2fb7b02ebf3.manifest

File version

Not Applicable

File size

694

Date (UTC)

13-May-2014

Time (UTC)

18:38

Platform

Not Applicable

File name

X86_microsoft-windows-vssapi_31bf3856ad364e35_6.3.9600.17120_none_69c366a39d2e52dd.manifest

File version

Not Applicable

File size

11,914

Date (UTC)

13-May-2014

Time (UTC)

18:38

Platform

Not Applicable

Additional files for all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2

File name

Amd64_0cf5d20463332a4f3bd7009c0717c644_31bf3856ad364e35_6.3.9600.17120_none_3c8eb4de16b95dea.manifest

File version

Not Applicable

File size

698

Date (UTC)

13-May-2014

Time (UTC)

19:19

Platform

Not Applicable

File name

Amd64_139b13601fca2d3f083b6d48cb666a15_31bf3856ad364e35_6.3.9600.17120_none_c1a9e4cfd256ff86.manifest

File version

Not Applicable

File size

698

Date (UTC)

13-May-2014

Time (UTC)

19:19

Platform

Not Applicable

File name

Amd64_microsoft-windows-vssapi_31bf3856ad364e35_6.3.9600.17120_none_c5e20227558bc413.manifest

File version

Not Applicable

File size

11,918

Date (UTC)

13-May-2014

Time (UTC)

19:19

Platform

Not Applicable

File name

Package_1_for_kb2964441~31bf3856ad364e35~amd64~~6.3.1.0.mum

File version

Not Applicable

File size

1,817

Date (UTC)

13-May-2014

Time (UTC)

19:19

Platform

Not Applicable

File name

Package_2_for_kb2964441~31bf3856ad364e35~amd64~~6.3.1.0.mum

File version

Not Applicable

File size

2,272

Date (UTC)

13-May-2014

Time (UTC)

19:19

Platform

Not Applicable

File name

Package_3_for_kb2964441~31bf3856ad364e35~amd64~~6.3.1.0.mum

File version

Not Applicable

File size

2,275

Date (UTC)

13-May-2014

Time (UTC)

19:19

Platform

Not Applicable

File name

Package_for_kb2964441_rtm_gm~31bf3856ad364e35~amd64~~6.3.1.0.mum

File version

Not Applicable

File size

1,969

Date (UTC)

13-May-2014

Time (UTC)

19:19

Platform

Not Applicable

File name

Package_for_kb2964441_rtm~31bf3856ad364e35~amd64~~6.3.1.0.mum

File version

Not Applicable

File size

2,789

Date (UTC)

13-May-2014

Time (UTC)

19:19

Platform

Not Applicable

File name

Wow64_microsoft-windows-vssapi_31bf3856ad364e35_6.3.9600.17120_none_d036ac7989ec860e.manifest

File version

Not Applicable

File size

10,915

Date (UTC)

13-May-2014

Time (UTC)

19:19

Platform

Not Applicable


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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