One random core in a 6 core system always 100% utilized.
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Friday, June 15, 2012 10:19 PM
After every reboot one core in a brand new HP ML350 Gen8 Windows Hyper-V server is always 100% utilized. And I mean 100%. I did not notice it for a while because the CPU Usage History line is pegged at the top. This is a brand new server with all drivers 100% up to date with HP certified drivers.
This is not the typical misbehaving application. Using Task Manager and Process Monitor I traced the misbehaving process to System (4) – ntkrnl
Using xperf performance tracing I have further been able to narrow the problem process down to the stack function HalpTscStallExecutionProcessor<itself> in module hal.dll. The only information I have been able to find is that KeStallExecutionProcessor is general used by device drivers for a very short pause in multi-CPU operations. So this makes me suspect some type of device or driver error. But that is just a guess.
Typically when this type of problem happens I find a easily identifiable device driver or antivirus dll causing the problem and am able to correct the problem but with hal.dll being the problem I have no idea where to go from here.
Any help would be appreciated.
-Jimmygerc
All Replies
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Monday, June 18, 2012 6:06 AMModerator
Hi,
To troubleshoot this issue, please firstly contact HP support to check whether they have new firmware for this product. If have new firmware, update is and check the result.
Configure OS to disable all startup items and non-Microsoft services:
1. Click the Start Button type "msconfig" (without quotation marks) in the Start Search box, and then press Enter.
Note: If prompted, please click Continue on the User Account Control (UAC) window.
2. Click the "Services" tab, check the "Hide All Microsoft Services" box and click "Disable All" (if it is not gray).
3. Click the "Startup" tab, click "Disable All" and click "OK".
Restart server and test this issue in the Clean Boot environment, if the issue disappears in the Clean Boot environment, we can use a 50/50 approach to quickly narrow down which entry is causing the issue.
Also you may refer to this article to troubleshoot this issue:
The Case of the Slooooow System
http://blogs.technet.com/b/markrussinovich/archive/2008/09/24/3126858.aspxFor more information please refer to following MS articles:
One core at 100% in Windows 7
http://social.technet.microsoft.com/forums/en-us/w7itproperf/thread/5C79517F-F643-4586-99E0-131D4FD2B76F
CPU usage on one core 100%
http://social.technet.microsoft.com/forums/en-us/systemcenteressentials/thread/8B9349EE-5FFE-4D29-A11C-A99EBC2CB5A7Hope this helps!
If you areTechNet Subscription user and have any feedback on our support quality, please send your feedback here.
Lawrence
TechNet Community Support
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Tuesday, June 19, 2012 4:43 PM
Finally got past the 1st level of HP support. After looking at a diagnostic dump they could not figure out the exact problem so they decided to replace the mother board and a questionable memory module.
Since then the problem has disappeared, so it was a hardware problem.
Thanks.
- Proposed As Answer by FZB Tuesday, June 19, 2012 6:04 PM
- Marked As Answer by Lawrence LvMicrosoft Contingent Staff, Moderator Wednesday, June 20, 2012 3:34 AM
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Wednesday, June 20, 2012 3:35 AMModeratorHi,
Very glad to know you have resolved this issue, and thanks for sharing your experience.
Any further questions please feel free to contact us.
Hope this helps!
If you areTechNet Subscription user and have any feedback on our support quality, please send your feedback here.
Lawrence
TechNet Community Support
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