linux-kernel - Re: BUG: unable to handle kernel NULL pointer deref, bisected to 746650160

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Date:	Sun, 19 Apr 2015 18:58:41 +0200
From:	Christoph Hellwig <hch@....de>
To:	Torsten Luettgert <ml-lkml@...a.eu>
Cc:	Christoph Hellwig <hch@....de>, linux-kernel@...r.kernel.org,
	linux-scsi@...r.kernel.org
Subject: Re: BUG: unable to handle kernel NULL pointer deref, bisected to
	746650160

This looks like a long standing bug in all three 3ware drivers to
me, that the taking the host lock around the host_busy manipulation
was hiding.

Can you test the patch below?

View attachment "0001-3w-sas-fix-command-completion-race.patch" of type "text/x-patch" (4524 bytes)