Discussion:
!sysptes 4 on XP
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JohnDiego47
2010-09-08 01:55:03 UTC
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There is a very good article on troubleshooting system PTE usage.

http://www.microsoft.com/downloads/en/confirmation.aspx?familyId=ed0e8084-abf7-4c00-ba6a-7d658cdb052a&displayLang=en

The crux of finding drivers using PTE entries, excessively or otherwise, is
setting the reg value HKLM\SYSTEM\CurrentControlSet\Control\Session
Manager\Memory Management - TrackPtes=1, rebooting and then monitoring driver
usage with

!sysptes 4

with live kernel debugging, or in a crash dump.

Unfortunately this doesn't work on XP. You get the message

"Unable to get System PTE individual lock consumer information"

There are various support group entries dating back a few years saying that
this is due to some symbols missing from the public PDB's. Testing shows that
this doesn't work.

Any suggestions or work-around would be greatly appreciated.
Scott Noone
2010-09-08 12:29:28 UTC
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Can you turn symbol failures on and try again?

http://analyze-v.com/?p=325

I've never actually tried this command, so I'd be interested to see what the
error is.

-scott
--
Scott Noone
Consulting Associate
OSR Open Systems Resources, Inc.
http://www.osronline.com
http://twitter.com/analyzev
Post by JohnDiego47
There is a very good article on troubleshooting system PTE usage.
http://www.microsoft.com/downloads/en/confirmation.aspx?familyId=ed0e8084-abf7-4c00-ba6a-7d658cdb052a&displayLang=en
The crux of finding drivers using PTE entries, excessively or otherwise, is
setting the reg value HKLM\SYSTEM\CurrentControlSet\Control\Session
Manager\Memory Management - TrackPtes=1, rebooting and then monitoring driver
usage with
!sysptes 4
with live kernel debugging, or in a crash dump.
Unfortunately this doesn't work on XP. You get the message
"Unable to get System PTE individual lock consumer information"
There are various support group entries dating back a few years saying that
this is due to some symbols missing from the public PDB's. Testing shows that
this doesn't work.
Any suggestions or work-around would be greatly appreciated.
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