linux-kernel - Re: [Bug #15004] i915: *ERROR* Execbuf while wedged

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Message-Id: <89kc63$fua5o0@fmsmga002.fm.intel.com>
Date:	Wed, 27 Jan 2010 18:08:06 +0000
From:	Chris Wilson <chris@...is-wilson.co.uk>
To:	Jesse Barnes <jbarnes@...tuousgeek.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	tomas m <tmezzadra@...il.com>
Subject: Re: [Bug #15004] i915: *ERROR* Execbuf while wedged

On Wed, 27 Jan 2010 10:01:44 -0800, Jesse Barnes <jbarnes@...tuousgeek.org> wrote:
> On Sun, 24 Jan 2010 23:23:11 +0100 (CET)
> "Rafael J. Wysocki" <rjw@...k.pl> wrote:
> 
> > This message has been generated automatically as a part of a report
> > of regressions introduced between 2.6.31 and 2.6.32.
> > 
> > The following bug entry is on the current list of known regressions
> > introduced between 2.6.31 and 2.6.32.  Please verify if it still should
> > be listed and let me know (either way).
> > 
> > 
> > Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15004
> > Subject		: i915: *ERROR* Execbuf while wedged
> > Submitter	: tomas m <tmezzadra@...il.com>
> > Date		: 2010-01-07 18:53 (18 days old)
> 
> Chris, any ideas about this one?  I remember seeing a few like this
> that have been bisected to 2D driver changes recently...

Yes, this is almost certainly our userspace driver sending the GPU into a
spin. And no, we haven't identified the cause yet, there have a been a lot
of conflicting reports and guesswork, with very little information.

-- 
Chris Wilson, Intel Open Source Technology Centre
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