[Bug 128367] Re: vmware clock skew on Feisty

2007-12-10 Thread Peter Åstrand
># echo 2 > /sys/module/processor/parameters/max_cstate

This worked great on one of our VMware machines running Ubuntu 7.04.

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vmware clock skew on Feisty
https://bugs.launchpad.net/bugs/128367
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[Bug 128367] Re: vmware clock skew on Feisty

2007-12-01 Thread albert
We are closing this bug report because it lacks the information we need
to investigate the problem, as described in the previous comments.
Please reopen it if you can give us the missing information, and don't
hesitate to submit bug reports in the future. To reopen the bug report
you can click on the current status, under the Status column, and change
the Status back to "New". Thanks again!

** Changed in: linux-source-2.6.20 (Ubuntu)
   Status: Incomplete => Invalid

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vmware clock skew on Feisty
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[Bug 128367] Re: vmware clock skew on Feisty

2007-10-25 Thread albert
Thank you for taking the time to report this bug and helping to make Ubuntu 
better. Can you please provide the output of the commands below:
- cat /proc/cpuinfo | grep model
- cat /sys/module/processor/parameters/max_cstate 

The problem you describe is a known issue with vmware running on processors 
using speedstep (or the amd equivalent) and using deeper sleep modes.
You can try to prevent using the deeper sleep modes:
$ cat /sys/module/processor/parameters/max_cstate   # remember the value 
you get!
$ sudo -i
# echo 2 > /sys/module/processor/parameters/max_cstate
# exit

Now you can test the clock accuracy in a vmware machine. Please let us
know if this helps.

To enable the deeper sleep modes again, use the same commands, but use
the value you got from the first command instead of 2.

** Changed in: linux-source-2.6.20 (Ubuntu)
   Status: New => Incomplete

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vmware clock skew on Feisty
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