Symptoms

Consider the following scenario:

  • You have a server that's running Windows Server 2012 or Windows Server 2012 R2.

  • You have Microsoft Multipath I/O (MPIO) boot enabled on the server.

  • You have the MPIO policy set to use Round Robin load balancing policy.

  • You start the system with the available paths connected as specified in the Round Robin policy, and then you disconnect one of the paths.

In this scenario, the system crashes, and the dump file is not saved.

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

There are no prerequisites for installing this hotfix in Windows Server 2012.

To apply this hotfix in Windows Server 2012 R2, you must first have update 2919355 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 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 0.17 xxx

    Windows Server 2012

    RTM

    GDR

    6.2.920 0.21 xxx

    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 x64-based versions of Windows Server 2012

File name

File version

File size

Date

Time

Platform

Crashdmp.sys

6.2.9200.17219

61,760

19-Dec-2014

09:54

x64

Crashdmp.sys

6.2.9200.21336

61,760

19-Dec-2014

02:21

x64

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 0.17 xxx

    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 x64-based versions of Windows Server 2012 R2

File name

File version

File size

Date

Time

Platform

Crashdmp.sys

6.3.9600.17622

69,440

19-Dec-2014

03:55

x64

Additional file information for Windows Server 2012

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

File name

Amd64_77d94891e5b5febf0c241f5072fd7370_31bf3856ad364e35_6.2.9200.17219_none_47b6bd5d41dc36a6.manifest

File version

Not Applicable

File size

701

Date (UTC)

19-Dec-2014

Time (UTC)

18:13

File name

Amd64_83cc010f788c2040531dd7e22bd7bb3d_31bf3856ad364e35_6.2.9200.21336_none_d83cfa3c0a78ee46.manifest

File version

Not Applicable

File size

701

Date (UTC)

19-Dec-2014

Time (UTC)

18:13

File name

Amd64_microsoft-windows-crashdump_31bf3856ad364e35_6.2.9200.17219_none_fea79d5ba05d1050.manifest

File version

Not Applicable

File size

4,950

Date (UTC)

19-Dec-2014

Time (UTC)

09:58

File name

Amd64_microsoft-windows-crashdump_31bf3856ad364e35_6.2.9200.21336_none_ff189970b98d9bf7.manifest

File version

Not Applicable

File size

4,950

Date (UTC)

19-Dec-2014

Time (UTC)

02:25

File name

Package_1_for_kb3027113_bf~31bf3856ad364e35~amd64~~6.2.1.0.mum

File version

Not Applicable

File size

1,781

Date (UTC)

19-Dec-2014

Time (UTC)

18:13

File name

Package_1_for_kb3027113~31bf3856ad364e35~amd64~~6.2.1.0.mum

File version

Not Applicable

File size

2,489

Date (UTC)

19-Dec-2014

Time (UTC)

18:13

File name

Package_2_for_kb3027113_bf~31bf3856ad364e35~amd64~~6.2.1.0.mum

File version

Not Applicable

File size

2,233

Date (UTC)

19-Dec-2014

Time (UTC)

18:13

File name

Package_2_for_kb3027113~31bf3856ad364e35~amd64~~6.2.1.0.mum

File version

Not Applicable

File size

2,949

Date (UTC)

19-Dec-2014

Time (UTC)

18:13

File name

Package_3_for_kb3027113_bf~31bf3856ad364e35~amd64~~6.2.1.0.mum

File version

Not Applicable

File size

1,792

Date (UTC)

19-Dec-2014

Time (UTC)

18:13

File name

Package_3_for_kb3027113~31bf3856ad364e35~amd64~~6.2.1.0.mum

File version

Not Applicable

File size

2,500

Date (UTC)

19-Dec-2014

Time (UTC)

18:13

File name

Package_for_kb3027113_rtm_bf~31bf3856ad364e35~amd64~~6.2.1.0.mum

File version

Not Applicable

File size

2,848

Date (UTC)

19-Dec-2014

Time (UTC)

18:13

File name

Package_for_kb3027113_rtm~31bf3856ad364e35~amd64~~6.2.1.0.mum

File version

Not Applicable

File size

2,907

Date (UTC)

19-Dec-2014

Time (UTC)

18:13

File name

Update-bf.mum

File version

Not Applicable

File size

2,447

Date (UTC)

19-Dec-2014

Time (UTC)

18:13

Additional file information for Windows Server 2012 R2

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

File name

Amd64_c9e0ff1ad78f243cbc33a25a2135daad_31bf3856ad364e35_6.3.9600.17622_none_54f3127ae3c3bbf4.manifest

File version

Not Applicable

File size

701

Date (UTC)

20-Dec-2014

Time (UTC)

01:49

File name

Amd64_microsoft-windows-crashdump_31bf3856ad364e35_6.3.9600.17622_none_968a8ba7ea9e3ff9.manifest

File version

Not Applicable

File size

4,950

Date (UTC)

19-Dec-2014

Time (UTC)

03:59

File name

Package_1_for_kb3027113~31bf3856ad364e35~amd64~~6.3.1.0.mum

File version

Not Applicable

File size

1,823

Date (UTC)

20-Dec-2014

Time (UTC)

01:49

File name

Package_2_for_kb3027113~31bf3856ad364e35~amd64~~6.3.1.0.mum

File version

Not Applicable

File size

2,709

Date (UTC)

20-Dec-2014

Time (UTC)

01:49

File name

Package_for_kb3027113_rtm_gm~31bf3856ad364e35~amd64~~6.3.1.0.mum

File version

Not Applicable

File size

1,691

Date (UTC)

20-Dec-2014

Time (UTC)

01:49

File name

Package_for_kb3027113_rtm~31bf3856ad364e35~amd64~~6.3.1.0.mum

File version

Not Applicable

File size

2,561

Date (UTC)

20-Dec-2014

Time (UTC)

01:49


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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