To: linux-kernel@vger.kernel.org
From: "Alexander E. Patrakov" <patrakov@ums.usu.ru>
Subject: Re: top displaying 9999% CPU usage
Date: Wed, 03 Oct 2007 19:03:40 +0600
Message-ID: <4703932C.6060900@ums.usu.ru>
References: <200710031433.34504.elendil@planet.nl>
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Frans Pop wrote:
> I saw top occasionally displaying 9999% CPU usage for a process. The
> first few times it was amarokapp, this last time it was kontact.
> Both applications were basically idle.
> The "cc1" is a kernel compile (rc9 + CFS :-).
> 
> I cannot remember seeing this before, but as I also don't run top that
> frequently I cannot be sure its a recent regression.

Try to capture the i/o log with the following command:

strace -o top.log top

This will show for sure whether the kernel gives out incorrect data or 
top misinterprets them.


-- 
Alexander E. Patrakov

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