From: Bernd Schubert <bernd.schubert@fastmail.fm>
To: Denis Golovan <denis.golovan@gmail.com>, NeilBrown <neilb@suse.de>
Cc: linux-raid@vger.kernel.org
Subject: Re: RAID5 hard freeze
Date: Tue, 04 Mar 2014 12:57:08 +0100 [thread overview]
Message-ID: <5315BF94.50803@fastmail.fm> (raw)
In-Reply-To: <CAF8FvyxaXNHEAqdsfGfF-j_di9W=a5Mx3GwOFyoA_NHea-x+5g@mail.gmail.com>
On 03/01/2014 03:54 PM, Denis Golovan wrote:
> Hi again
>
> I was contacted by a person who suggested to double-check
> vfs_cache_pressure setting.
> And it appeared that I had this setting set to 10000. That was a
> left-over from previously debugging OOM-killer case.
>
> When I removed this setting from sysctl.conf, I was able to greatly
> increase the time to crash/freeze.
> My server was able to withstand about a day of continuous write test.
>
> Nevertheless, it froze after that.
>
> Still it looks like something is wrong with RAID/filesystem co-operation.
But why should it be RAID/filesystem and not hardware related or another
linux subsystem?
>
> I would still like to debug the problem.
> Please help.
The only way to get more help and information is probably to attach a
real serial console (i.e. ipmi-sol).
Bernd
next prev parent reply other threads:[~2014-03-04 11:57 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-24 22:01 RAID5 hard freeze Denis Golovan
2014-02-25 2:58 ` NeilBrown
2014-02-26 20:52 ` Denis Golovan
2014-03-01 14:54 ` Denis Golovan
2014-03-04 11:57 ` Bernd Schubert [this message]
2014-03-05 21:12 ` Denis Golovan
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