From: David Vrabel <dvrabel@arcom.com>
To: Kasturi Raghunath <kasturi@utstar.com>
Cc: linux-mtd list <linux-mtd@lists.infradead.org>
Subject: Re: do_write_buffer(): software timeout
Date: Thu, 27 Jan 2005 09:48:51 +0000 [thread overview]
Message-ID: <41F8B903.8050301@arcom.com> (raw)
In-Reply-To: <DJEELHNCJDICCAIMLCCCCEIOEGAA.kasturi@utstar.com>
Kasturi Raghunath wrote:
> Hi
> I am running 2.4.18 linux on my 8270 board with AMD29LV128ML flash chip. I
> have patched May 27 2004 snapshot into my linux OS. JFFS2 and the MTD driver
> works fine when there is no load on the CPU. But when I start sending wire
> speed traffic on the ethernet port and simultaneously download a file to the
> flash I get following error:
> MTD do_write_buffer(): software timeout
It's possible that the ethernet driver is disabling interrupts too much
and ticks are getting lost. This can cause timeouts to expire too soon
(particularly with the short 1 jiffy timeout in the do_write_buffer() code).
I posted a patch to this list a while back to work around this issue.
You could see if it fixes the problem.
http://lists.infradead.org/pipermail/linux-mtd/2004-December/011048.html
David Vrabel
--
David Vrabel, Design Engineer
Arcom, Clifton Road Tel: +44 (0)1223 411200 ext. 3233
Cambridge CB1 7EA, UK Web: http://www.arcom.com/
prev parent reply other threads:[~2005-01-27 9:49 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-26 21:27 do_write_buffer(): software timeout Kasturi Raghunath
2005-01-27 9:48 ` David Vrabel [this message]
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