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From: Tejun Heo <tj@kernel.org>
To: lrhorer@satx.rr.com
Cc: linux-ide@vger.kernel.org
Subject: Re: Odd RAID failure
Date: Fri, 10 Apr 2009 10:01:01 -0700	[thread overview]
Message-ID: <49DF7B4D.5080109@kernel.org> (raw)
In-Reply-To: <20090410044328.TFNN5844.cdptpa-omta02.mail.rr.com@Leslie>

Leslie Rhorer wrote:
>>> If you can bear with slower operation, keeping issuing sync repeatedly
>>> (ie. something like while true; do sync; sleep 1; done) and see how
>>> the behavior changes might shed some light on what's going on too.
>> I wouldn't expect it to have any diagnostic value, really.  The sync
>> command
>> locks up just like every other disk I/O when the event occurs.
> 
> I tried this and it doesn't seem to have made a difference.  Neither does
> using noop as the scheduler.

Hmm... yeah, I was mostly thinking about ext3 for this and the next
suggestion, which often has large latency when flushing its journal to
disk.  I suppose the next stop is trying another filesystem?

Thanks.

-- 
tejun

  reply	other threads:[~2009-04-10 17:00 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-04 17:32 Odd RAID failure Lelsie Rhorer
2009-04-09 18:13 ` Tejun Heo
2009-04-09 18:42   ` Greg Freemyer
2009-04-09 20:05     ` Tejun Heo
2009-04-10  2:26       ` Leslie Rhorer
2009-04-10  4:43         ` Leslie Rhorer
2009-04-10 17:01           ` Tejun Heo [this message]
2009-04-11  1:34             ` Leslie Rhorer

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