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Advanced Crash Dump Analysis

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The preceding section leverages the Driver Verifier to create crashes that the debugger’s automated analysis engine can resolve. You might still encounter cases where you cannot get a system to produce easily analyzable crashes and, if so, you will need to execute manual analysis to try and determine what the problem is. Here are some examples of basic commands that can provide clues during crash analysis. The Debugging Tools for Windows help file provides complete documentation on these and other commands as well as examples of how to use them during crash analysis:

• Use the !process 0 0 debugger command to look at the processes running, and make sure that you understand the purpose of each one. Try disabling or uninstalling unnecessary applications and services.

• Use the lm command with the kv option to list the loaded kernel-mode drivers. Make sure that you understand the purpose of any third-party drivers and that you have the most recent versions.

• Use the !vm command to see whether the system has exhausted virtual memory, paged pool, or nonpaged pool. If virtual memory is exhausted, the committed pages will be close to the commit limit, so try to identify a potential memory leak by examining the list of processes to see which one reports high commit usage. If nonpaged pool or paged pool is exhausted (that is, the usage is close to the maximum).

There are other debugging commands that can prove useful, but more advanced knowledge is required to apply them. The !irp command is one of them.

Source of Information : Microsoft Press Windows Internals 5th Edition

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