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From: Chris Snook <csnook@redhat.com>
To: Florian Boelstler <kernel@boelstler.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Strange delays / what usually happens every 10 min?
Date: Tue, 13 Nov 2007 11:08:16 -0500	[thread overview]
Message-ID: <4739CBF0.8000500@redhat.com> (raw)
In-Reply-To: <fhcc39$51b$1@ger.gmane.org>

Florian Boelstler wrote:
> While running that test driver a delay of about 10ms _exactly_ occurs
> every 10 minutes.

This is precisely the sort of thing that BIOS/firmware-level SMI handlers do, 
particularly those that have monitoring or management features.  Try to 
determine if the kernel is doing anything during this time.  If the entire 
kernel seems to be frozen, talk to the people who wrote the firmware.

	-- Chris

  parent reply	other threads:[~2007-11-13 16:10 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-11-13 14:24 Strange delays / what usually happens every 10 min? Florian Boelstler
2007-11-13 14:41 ` Peter Zijlstra
2007-11-13 16:02 ` Dmitry Adamushko
2007-11-13 16:08 ` Chris Snook [this message]
2007-11-13 16:50   ` Clemens Koller
2007-11-13 17:58     ` Florian Boelstler
2007-11-13 16:23 ` Eric Dumazet
2007-11-13 17:54   ` Florian Boelstler

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