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10.14.2008 at 07:38AM PDT, ID: 23812976
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Unexpected Clocksource tsc unstable message, freezes system

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Clocksource tsc unstable (detlta = 4689558902 ns)

On one of my machines (Virtual machine running Debian on VMWare ESX OS), I unexpectedly got: "Clocksource tsc unstable (detlta = 4689558902 ns)" on my console.

I was able to get a login prompt with SSH, but after entering the username, the system freezes.

Resetting the VM in the VMWare console restored the VM to normal behaviour, but i would like to a) understand the error message and b) prevent it from happening again.

Can anybody shed some light on this for me? Using kernel 2.6.22-2-686 from the SID distribution, its a high volume production mail server. Some updates have been performed today but nothing really comes to mind that could be the culprit. Could it be a change on the VM host?
Answered By: owensleftfoot
Expert Since: 11/25/2002
Accepted Solutions: 772
owensleftfoot has been an Expert for 6 years1 month, during which he has posted 2426 comments and answered 772 questions. owensleftfoot is just one of 203 experts in the Debian Linux Zone. 1 expert collaborated on this answer, which was graded an "A" by the asker.
 
 
20081119-EE-VQP-48 / EE_QW_2_20070628