Re: [PATCH 1/9] ia64: VIRT_CPU_ACCOUNTING (accurate cpu time accounting)

From: Kenji Kaneshige <kaneshige.kenji_at_jp.fujitsu.com>
Date: 2007-11-07 20:46:01
> I did run the kernel some more today and noticed some odd "hangs".
> Some processes seemed to get stuck for many seconds and then
> continued again.  Didn't have time to try and track what was
> happening.  Have you seem snything like this?
> 

I've encountered the similar phenomenon several times. I have
not investigated it very much, but I guess it is related to the
problem reported at

http://marc.info/?l=linux-kernel&m=119303432628668&w=2

The 'wa' field of 'top' command showed that one of cpus is under
100% iowait when I encountered the problem.

Thanks,
Kenji Kaneshige

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Received on Wed Nov 07 20:50:21 2007

This archive was generated by hypermail 2.1.8 : 2007-11-07 20:50:38 EST