Most of the time there's no \windows\memory.dmp after a system crash.The following kbs didn't help.http://support.microsoft.com/kb/949052http://support.microsoft.com/kb/953341What can you suggest to fix it?

Most of the time? Are yousayingon certain cases a crash dump is successfully generated?Some possibilities: The path specified for the dumpfiles is non-existent. The Memory.dmp file already exists and the option Overwrite Any Existing File is not selected. The page file is not located on the %systemroot% partition. Not enough disk space (both for the page file and the generated dumps) Regards,Salvador Manaois III MCSE MCSA CEH MCITP | Enterprise/Server Admin Bytes & Badz : http://badzmanaois.blogspot.com

Well, if I break there in windbg and execute .crash command, sometimes the dump is generated.However,when my driver crashes, and I resume ('g' command) windbg after the break, the dump is never saved.Regarding the possibilities: The path specified for the dumpfiles is non-existent. -- It does exist (in the beginning in c:\windows andlaterI put iton a separate -- non system -- drive e:), and .crash _sometimes_ created memory.dmp there (in both places). The Memory.dmp file already exists and the option Overwrite Any Existing File is not selected. -- The option to overwrite is selected. I crashed both with existent memory.dmp and without it, still the result is "most of the time memory.dmp is not created". The page file is not located on the %systemroot% partition. -- The page file is in its default place. Not enough disk space (both for the page file and the generated dumps). -- There ismuch space there.

noone knows?

Hello, May I know what operating system you are running (Windows Server 2003 or Windows Server 2008)? 32-bit version or 64-bit version? I would suggest that you firstly change the path back to the %SystemRoot%\MEMORY.DMP. Then, make sure that the you have a paging file on the boot volume that is sufficient to hold all the physical RAM plus 1 megabyte (MB). Also make sure that there is at least the same free space to hold the full memory dump. Try manually generate a memory dump file by using keyboard. Please see the following article for detailed steps: Windows feature lets you generate a memory dump file by using the keyboard: http://support.microsoft.com/kb/244139/ See if any problem occurs similar to the symptoms listed in KB articles 949052 and 953341. Besides, would you please take a look at the following article to see if it applies to your situation? A computer that is running an x86 version of Windows Vista or of Windows Server 2008 on an IDE/ATA disk does not generate a valid dump file when PAE mode is enabled: http://support.microsoft.com/kb/953533 Best regards, Chang Yin