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Date: Mon, 30 Jan 2006 07:34:35 -0800
From: Andrew Vasquez <andrew.vasquez@qlogic.com>
To: Stefan Kaltenbrunner <mm-mailinglist@madness.at>
Cc: linux-kernel@vger.kernel.org
Subject: Re: qla2xxx related oops in 2.6.16-rc1
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References: <43DA580E.3020100@madness.at>
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On Fri, 27 Jan 2006, Stefan Kaltenbrunner wrote:

> We hit the following oops in 2.6.16-rc1 during itesting of a
> devicemapper based multipath infrastructure.
> 
> The oops happend during heavy io on the devicemapper device and a reboot
> of one of the switches the host was directly connected too.
> 
> The host in questions is as Dual Opteron 280 with 16GB ram and two
> qla2340 adapters accessing an IBM DS4300 Array.
> 
> Stefan
> 
> Unable to handle kernel NULL pointer dereference at 0000000000000000 RIP:
> <ffffffff803cc6c6>{_spin_lock+0}
> PGD 3ff513067 PUD 3ff514067 PMD 0
> Oops: 0002 [1] SMP
> CPU 0
> Modules linked in: dm_round_robin dm_multipath dm_mod i2c_amd756 qla2300
> qla2xxx i2c_core evdev
> Pid: 2568, comm: qla2300_1_dpc Not tainted 2.6.16-rc1 #4
> RIP: 0010:[<ffffffff803cc6c6>] <ffffffff803cc6c6>{_spin_lock+0}

Could you retry your tests with the following patchset:

http://marc.theaimsgroup.com/?l=linux-scsi&m=113779768321616&w=2
http://marc.theaimsgroup.com/?l=linux-scsi&m=113779768230038&w=2
http://marc.theaimsgroup.com/?l=linux-scsi&m=113779768230735&w=2

they will apply cleanly an 2.6.16-rc1 tree.

Regards,
Andrew Vasquez
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