Consider the following scenario:
| • | On a computer that is running Windows
Server 2008 or Windows Vista, you have more than 4 gigabytes (GB) of physical memory installed. |
| • | The system is configured to generate a full memory dump
file. |
| • | The DedicatedDumpFile and DumpFileSize registry values are
created. The value of the DumpFileSize parameter is larger than 4096. |
In this scenario, the generated dump file is unexpectedly truncated to 4 GB.
Note To deploy, troubleshoot, and service large memory
platforms, OEM partners and
customers may have to create large dump files.
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The issue is caused by the Crashdmp.sys module. An overflow
issue occurs in this scenario, and this truncates the dump file.
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Hotfix information for Windows Server 2008
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 this specific problem. 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:
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 have Windows Server 2008
installed.
Restart requirement
You do not have to restart the computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace a previously released hotfix.
File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the
Time Zone tab in the
Date and Time item in Control Panel.
Windows Server 2008, x86 version
| File name | File version | File
size | Date | Time | Platform |
|---|
| Crashdmp.sys | 6.0.6001.22144 | 36,920 | 27-Mar-2008 | 03:58 | x86 |
Windows Server 2008, Itanium-based version
| File name | File version | File
size | Date | Time | Platform |
|---|
| Crashdmp.sys | 6.0.6001.22144 | 73,784 | 27-Mar-2008 | 04:32 | IA-64 |
Windows Server 2008, x64 version
| File name | File version | File
size | Date | Time | Platform |
|---|
| Crashdmp.sys | 6.0.6001.22144 | 39,992 | 27-Mar-2008 | 04:40 | x64 |
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Hotfix information for Windows Vista
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 this specific problem. 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:
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 have Windows Vista installed.
Restart requirement
You do not have to restart the computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace a previously released hotfix.
File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the
Time Zone tab in the
Date and Time item in Control Panel.
Windows Vista, x86 version
| File name | File version | File
size | Date | Time | Platform |
|---|
| Crashdmp.sys | 6.0.6000.20801 | 35,896 | 27-Mar-2008 | 04:00 | x86 |
Windows Vista Service Pack 1, x86 version
| File name | File version | File
size | Date | Time | Platform |
|---|
| Crashdmp.sys | 6.0.6001.22144 | 36,920 | 27-Mar-2008 | 03:58 | x86 |
Windows Vista, x64 version
| File name | File version | File
size | Date | Time | Platform |
|---|
| Crashdmp.sys | 6.0.6000.20801 | 39,992 | 27-Mar-2008 | 04:13 | x64 |
Windows Vista Service Pack 1, x64 version
| File name | File version | File
size | Date | Time | Platform |
|---|
| Crashdmp.sys | 6.0.6001.22144 | 39,992 | 27-Mar-2008 | 04:40 | x64 |
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By using
the DedicatedDumpFile registry entry in Windows Server 2008 and in Windows Vista, a user can configure a
registry setting to store a dump file in a location other than on the boot volume.
The following information describes the DedicatedDumpFile and DumpFileSize registry entries, respectively:
Location: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\CrashControl
Name: DedicatedDumpFile
Type: REG_SZ
Value: A dedicated dump file with the full path, such as c:\dedicateddumpfile.sys
Location: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\CrashControl
Name: DumpFileSize
Type: REG_DWORD
Value: dump file size in megabyte.
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Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
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Help and Support
