From: Mark Jackson <mpfj-list@mimc.co.uk>
To: lkml <linux-kernel@vger.kernel.org>
Cc: kernel@avr32linux.org
Subject: Help needed diagnosing kernel error message
Date: Thu, 07 Oct 2010 10:46:11 +0100 [thread overview]
Message-ID: <4CAD96E3.3010106@mimc.co.uk> (raw)
We are running 2.6.31 on a custom embedded board (based on the AVR32 chip).
It has flash, sdram and fram all connected via an external bus.
We have found that under heavy external bus load, the target appears to lockup (i.e. network
timeouts, ssh sessions dropped, userspace tasks halt, etc).
Having inspected the board out with an oscilloscope, I can see that the sdram bus is still active
doing tight read / write cycles.
As part of the diagnosis, I have checked /var/log/messages, and found the following entries which
I've never seen before:-
Oct 6 19:21:06 mimc200 lpr.err kernel: hars
Oct 6 19:24:57 mimc200 lpr.err kernel: hars
Oct 6 19:26:54 mimc200 lpr.err kernel: hars
Oct 6 19:27:14 mimc200 lpr.err kernel: hars
Oct 6 19:27:55 mimc200 lpr.err kernel: hars
Oct 6 19:27:58 mimc200 lpr.err kernel: hars
Oct 6 19:28:09 mimc200 lpr.err kernel: hars
Oct 6 19:28:39 mimc200 lpr.err kernel: hars
Oct 6 19:29:08 mimc200 lpr.err kernel: hars
Oct 6 19:29:11 mimc200 lpr.err kernel: hars
Can anyone shed light on which might be causing these ?
What extra info can I supply to assist the ml in helping me ?
Regards
Mark
reply other threads:[~2010-10-07 10:16 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4CAD96E3.3010106@mimc.co.uk \
--to=mpfj-list@mimc.co.uk \
--cc=kernel@avr32linux.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
Powered by JetHome