linux-kernel - Re: server lockups - task blocked for more than 120 seconds

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Date:	Fri, 27 Mar 2009 22:30:13 +0100
From:	Jiri Slaby <jirislaby@...il.com>
To:	Fabio Coatti <cova@...rara.linux.it>
CC:	linux-kernel@...r.kernel.org
Subject: Re: server lockups - task blocked for more than 120 seconds

On 03/26/2009 03:43 PM, Fabio Coatti wrote:
> Hi all, as we are experiencing several lockups on productions servers, we 
> activated some kernel debug options in order to look into causes. One thing 
> that we have found on kernel log is the message " task blocked for more than 
> 120 seconds", just before the lockup.I don't know if this is a symptom useful 

Hmm, could you try to turn on LOCKDEP?
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