linux-kernel - Re: [BISECTED] drm: random hang since 620f378 "drm: prune modes when ..."

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Date:	Wed, 16 Dec 2009 13:30:05 -0800
From:	Jesse Barnes <jbarnes@...tuousgeek.org>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Dave Airlie <airlied@...hat.com>, Daniel Vetter <daniel@...ll.ch>,
	Adam Jackson <ajax@...hat.com>, linux-kernel@...r.kernel.org,
	dri-devel@...ts.sourceforge.net, keithp@...thp.com,
	eric@...olt.net, Daniel Vetter <daniel.vetter@...ll.ch>
Subject: Re: [BISECTED] drm: random hang since 620f378 "drm: prune modes
 when ..."

On Wed, 16 Dec 2009 21:20:34 +0000
Arnd Bergmann <arnd@...db.de> wrote:

> On Wednesday 16 December 2009 20:18:23 Jesse Barnes wrote:
> > On Wed, 16 Dec 2009 14:53:11 +0100
> > Arnd Bergmann <arnd@...db.de> wrote:
> >
> > > It's working fine so far, no more crashes, but I supposed this
> > > effectively disables the power saving on my card again, right?
> > 
> > The patch just disables one (probably ineffective) power saving
> > feature.  So if things are working well for you with it I'll queue
> > up a revert patch.  I'm working on a better version of dynamic
> > clock control anyway.
> 
> It just crashed again after a few hours of uptime with some unrelated
> reboots in-between, with your patch applied.
> 
> The symptom was slightly different, now the whole screen was filled
> with random patterns, not just parts of the screen. Aside from that,
> it was just the same complete lockup as without the patch. Possibly
> less frequent, but that's hard to tell after a single sample.

But you're sure powersave=0 was solid?  Hmm...

-- 
Jesse Barnes, Intel Open Source Technology Center
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