From: Fengguang Wu <wfg@mail.ustc.edu.cn>
To: Sev Binello <sev@bnl.gov>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Many processes stuck in blk_congestion_wait
Date: Mon, 28 Jan 2008 11:16:06 +0800 [thread overview]
Message-ID: <401490185.02675@ustc.edu.cn> (raw)
Message-ID: <E1JJKTe-0001Ha-Mr@localhost.localdomain> (raw)
In-Reply-To: <4797BD62.1070608@bnl.gov>
On Wed, Jan 23, 2008 at 05:19:14PM -0500, Sev Binello wrote:
> We are experiencing numerous hangs/slow downs on our WS4 U5 nfs client
> machines (not seen on WS3).
> Many processes end up in a D state for long periods of time
> and are in blk_congestion_wait().
>
> Time in this state can vary,
> not sure what triggers them to come out, some don't
> But time in this state can be quite lengthy.
> Machines are running 2.6.9-55.0.9.ELsmp
It's a pretty old kernel. If possible, a kernel upgrade may well fix
your problem.
next prev parent reply other threads:[~2008-01-28 3:16 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-23 22:19 Many processes stuck in blk_congestion_wait Sev Binello
2008-01-28 3:16 ` Fengguang Wu [this message]
2008-01-28 3:16 ` Fengguang Wu
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