linux-kernel - Re: hpsa driver bug crack kernel down!

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Message-ID: <1397083799.2608.20.camel@buesod1.americas.hpqcorp.net>
Date:	Wed, 09 Apr 2014 15:49:59 -0700
From:	Davidlohr Bueso <davidlohr@...com>
To:	Baoquan He <bhe@...hat.com>
Cc:	linux-kernel@...r.kernel.org, scameron@...rdog.cce.hp.com,
	James.Bottomley@...senPartnership.com
Subject: Re: hpsa driver bug crack kernel down!

On Wed, 2014-04-09 at 10:39 +0800, Baoquan He wrote:
> Hi,
> 
> The kernel is 3.14.0+ which is pulled just now. 

Cc'ing more people.

While the hpsa driver appears to be involved in some way, I'm sure if
this is a related issue, but as of today's pull I'm getting another
problem that causes my DL980 not to come up.

*Massive* amounts of:

DMAR:[fault reason 02] Present bit in context entry is clear
dmar: DRHD: handling fault status reg 602
dmar: DMAR:[DMA Read] Request device [02:00.0] fault addr 7f61e000

Then:

hpsa 0000:03:00.0: Controller lockup detected: 0xffff0000
...
Workqueue: events hpsa_monitor_ctlr_worker [hpsa]
...

Screenshot of the actual LOCKUP: 
http://stgolabs.net/hpsa-hard-lockup-3.14+.png

While I haven't bisected, things worked fine until at least until commit
39de65aa2c3e (April 2nd).

Any ideas?

Thanks,
Davidlohr

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