archive mirror
 help / color / mirror / Atom feed
From: Jan Kara <>
To: Jamie Clark <>
Cc: Andrea Arcangeli <>,
Subject: Re: 2.4.23pre6aa3 - possible ext3 deadlock
Date: Thu, 27 Nov 2003 13:56:09 +0100	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>


> Followup to last test with 2.4.23pre6aa3. same config as before (ext3 
> /ql2300 / bonnie++) I forgot to mention that I have quotas enabled on 
> the partition under test.
> There have been a few 2.4 / quota / ext3 deadlock-type  mails on the 
> list recently so I'm sot sure if this is related. I can see an atime 
> update in the call trace of one of the bonnies but no dquot_ calls 
> anywhere.  I haven't applied Jan's patch as it came out before I could 
> reliably reproduce this problem.
  Yes, actually there's still a deadlock there for ext3+quotas (patch is
already written but not yet included in mainline I think) but as I've
looked through the trace it doesn't seem to be the case. About a week
ago I saw a report on deadlock of 2.4.22 with just plain ext3 without
quotas - so can you try to reproduce the problem with quotas not
compiled into the kernel (or just turning them off should be enough)?

> In the meantime I'll restart testing with noatime - which is how I'd 
> usually mount such a fs anyhow.
> The box seems to deadlock after 3-6 days of filesystem exercise. I have 
> repeated this 3 times. The last run was 6 days and and then I see all 
> disk I/O has ceased. The system remains pingable and sshd connects at 
> the TCP layer but nothing happens after that. The root filesystem is 
> ext3 but is a completely separate device (motherboard scsi) to the 
> filesystems running bonnie (external FC RAID). It seems that all 
> filesystem activity ceases.
> I have run the alt-sysrq-t ouput through ksymoops and attached.  Hope 
> this is useful to someone who knows.

						Thanks for report

  reply	other threads:[~2003-11-27 12:56 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-11-04  2:49 2.4.23pre6aa3 scsi oops Jamie Clark
2003-11-04 10:28 ` Andrea Arcangeli
2003-11-04 11:52   ` Jamie Clark
2003-11-04 12:48     ` Andrea Arcangeli
2003-11-27  3:21     ` 2.4.23pre6aa3 - possible ext3 deadlock Jamie Clark
2003-11-27 12:56       ` Jan Kara [this message]
2003-12-06  1:05     ` 2.4.23pre6aa3 scsi oops Andrea Arcangeli
2003-12-06  1:39       ` Jamie Clark
2003-12-11  2:33       ` 2.4.23aa1 ext3 oops Jamie Clark
2003-12-16 15:15         ` Marcelo Tosatti
2003-12-16 15:55           ` Jamie Clark
2003-12-17 11:42         ` David Woodhouse
2003-12-18  6:19           ` Jamie Clark
2003-12-18  6:25             ` David Woodhouse
2003-12-18  7:33               ` Jamie Clark

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:

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \ \ \ \ \ \

* 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;
as well as URLs for NNTP newsgroup(s).