linux-kernel - Re: 3.15-rc: regression in suspend

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Date:	Sat, 12 Jul 2014 01:33:22 +0200 (CEST)
From:	Jiri Kosina <jkosina@...e.cz>
To:	Pavel Machek <pavel@....cz>
cc:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Linux-pm mailing list <linux-pm@...ts.osdl.org>,
	kernel list <linux-kernel@...r.kernel.org>,
	Chris Wilson <chris@...is-wilson.co.uk>,
	intel-gfx <intel-gfx@...ts.freedesktop.org>
Subject: Re: 3.15-rc: regression in suspend

On Fri, 11 Jul 2014, Pavel Machek wrote:

> > > > Ok, so I have set up machines for ktest / autobisect, and found out that 
> > > > 3.16-rc1 no longer has that problem. Oh well, bisect would not be fun, 
> > > > anyway...
> > > 
> > > I am still seeing the problem with 3.16-rc2.
> > 
> > I'm confused now. Is the bisect result
> > 
> > commit 773875bfb6737982903c42d1ee88cf60af80089c
> > Author: Daniel Vetter <daniel.vetter@...ll.ch>
> > Date:   Mon Jan 27 10:00:30 2014 +0100
> > 
> >     drm/i915: Don't set the 8to6 dither flag when not scaling
> > 
> > now the culprit or not? Or do we have 2 different bugs at hand here?
> 
> Three different issues, it seems. Two ring initialization problems,
> one went away in 3.16 (for me), second did not (suspend for jikos),
> third -- trivial issue with 8to6 dither.

That's correct assesment.

The ring initialization failure I reported is still there.

-- 
Jiri Kosina
SUSE Labs
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