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

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Message-ID: <460174EC.8000608@redhat.com>
Date:	Wed, 21 Mar 2007 14:09:48 -0400
From:	Chuck Ebbert <cebbert@...hat.com>
To:	Dale Blount <linux-kernel@...e.us>
CC:	linux-kernel@...r.kernel.org
Subject: Re: PROBLEM: null pointer dereference in cfq_dispatch_requests (2.6.21-rc2
 and 2.6.20)

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?

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