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Message-ID: <4739D5E1.5060108@anagramm.de> Date: Tue, 13 Nov 2007 17:50:41 +0100 From: Clemens Koller <clemens.koller@...gramm.de> To: Chris Snook <csnook@...hat.com> CC: Florian Boelstler <kernel@...lstler.net>, linux-kernel@...r.kernel.org Subject: Re: Strange delays / what usually happens every 10 min? Chris Snook schrieb: > 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. There is no such thing as BIOS on this MPC8540 embedded system. I guess he is also using some bootloader which just gives full control to the linux kernel. Florian: Check the IP route chache flushes, as Eric mentioned. I'm working on the MPC854x as well. If you send me your scripts, I can give them a run here to gather more information. (I'm about to update my kernels here) Regards, Clemens Koller __________________________________ R&D Imaging Devices Anagramm GmbH Rupert-Mayer-Straße 45/1 Linhof Werksgelände D-81379 München Tel.089-741518-50 Fax 089-741518-19 http://www.anagramm-technology.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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