linux-kernel - Re: PROBLEM: null pointer dereference in cfq_dispatch

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Message-Id: <1174501407.14261.34.camel@dale.velocity.net>
Date:	Wed, 21 Mar 2007 14:23:27 -0400
From:	Dale Blount <linux-kernel@...e.us>
To:	Chuck Ebbert <cebbert@...hat.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: PROBLEM: null pointer dereference in cfq_dispatch_requests
	(2.6.21-rc2 and 2.6.20)

On Wed, 2007-03-21 at 14:09 -0400, Chuck Ebbert wrote:
> Dale Blount wrote:
> >> I'm puzzled why this is hitting Dan, but no one else has reported
> >> anything. Dan, did 2.6.19 work for you?
> > 
> > Actually, I believe it is happening to me too.  This is on a 4-disk raid5 with
> > one failed disk on two 2-port sata_sil pci controller cards.
> > 
> > The BUG below is from 2.6.20.3, but I will try 2.6.21-rc4 tonight.
> > The disk didn't fail until 2.6.20, so I don't know if 2.6.19 would have worked
> > or not.
> > 
> > 
> 
> Just to be clear: you have a RAID array (what level?) with a failed disk
> and it's giving you the same error that Dan gets?


Yes, the BUG looks to be pretty similar to me.  It's a 4 disk raid5 with
one disk missing (dead and sent in for RMA).

Dale

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