How to Use Dumpchk.exe to check a memory dump file

For a Microsoft Windows XP version of this article, see 315271 .

Summary

Dumpchk is a command-line utility you can use to verify that a memory dump file has been created correctly. Dumpchk does not require access to symbols.

You can download debugging tools for Windows products from the following Microsoft Web site:Dumpchk is located in the following locations:
  • Windows NT 4.0 CD-ROM:
    Support\Debug\<Platform>\Dumpchk.exe
  • Windows 2000 CD-ROM: Install the Support Tools by running Setup.exe from the Support\Tools folder on the CD-ROM. By default, Dumpchk.exe is installed to the Program Files\Support Tools folder.

More Information

Dumpchk has the following command-line switches:


DUMPCHK [options] <CrashDumpFile>

-? Display the command syntax.

-p Prints the header only (with no validation).

-v Specifies verbose mode.

-q Performs a quick test. Not available in the Windows 2000.
Additional switches that are only available in Windows 2000 Dumpchk.exe version:


-c Do dump validation.

-x Extra file validation. Takes several minutes.

-e Do dump exam.

-y <Path> Set the symbol search path for dump exam.
If the symbol search path is empty, the CD-ROM
is used for symbols.

-b <Path> Set the image search path for dump exam.
If the symbol search path is empty, <SystemRoot>\system32
is used for symbols.

-k <File> Set the name of the kernel to File.

-h <File> Set the name of the hal to File.
Dumpchk displays some basic information from the memory dump file, then verifies all the virtual and physical addresses in the file. If any errors are found in the memory dump file, Dumpchk reports them. The following is an example of the output of a Dumpchk command:


Filename . . . . . . .memory.dmp
Signature. . . . . . .PAGE
ValidDump. . . . . . .DUMP
MajorVersion . . . . .free system
MinorVersion . . . . .1057
DirectoryTableBase . .0x00030000
PfnDataBase. . . . . .0xffbae000
PsLoadedModuleList . .0x801463d0
PsActiveProcessHead. .0x801462c8
MachineImageType . . .i386
NumberProcessors . . .1
BugCheckCode . . . . .0xc000021a
BugCheckParameter1 . .0xe131d948
BugCheckParameter2 . .0x00000000
BugCheckParameter3 . .0x00000000
BugCheckParameter4 . .0x00000000

ExceptionCode. . . . .0x80000003
ExceptionFlags . . . .0x00000001
ExceptionAddress . . .0x80146e1c

NumberOfRuns . . . . .0x3
NumberOfPages. . . . .0x1f5e
Run #1
BasePage . . . . . .0x1
PageCount. . . . . .0x9e
Run #2
BasePage . . . . . .0x100
PageCount. . . . . .0xec0
Run #3
BasePage . . . . . .0x1000
PageCount. . . . . .0x1000


**************
**************--> Validating the integrity of the PsLoadedModuleList
**************

**************
**************--> Performing a complete check (^C to end)
**************
**************
**************--> Validating all physical addresses
**************
**************
**************--> Validating all virtual addresses
**************
**************
**************--> This dump file is good!
**************
If there is an error during any portion of the output displayed above, the dump file is corrupted and analysis cannot be performed.


In this example, the most important information (from a debugging standpoint) is the following:


MajorVersion . . . . .free system
MinorVersion . . . . .1057
MachineImageType . . .i386
NumberProcessors . . .1
BugCheckCode . . . . .0xc000021a
BugCheckParameter1 . .0xe131d948
BugCheckParameter2 . .0x00000000
BugCheckParameter3 . .0x00000000
BugCheckParameter4 . .0x00000000
This information can be used to determine what Kernel STOP Error occurred and, to a certain extent, what version of Windows was in use.


The information in this article is from the Windows NT Resource Kit. For more information on Dumpchk.exe and other debugging utilities, see Appendix A in the Windows NT 3.51 Resource Kit Update and Update 2.


For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

119490 Checking the Crashdump file for corruption

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رقم الموضوع: 156280 - آخر مراجعة: 26‏/01‏/2010 - المراجعة: 1

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