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

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Message-ID: <20140607120614.GB5309@amd.pavel.ucw.cz>
Date:	Sat, 7 Jun 2014 14:06:14 +0200
From:	Pavel Machek <pavel@....cz>
To:	Daniel Vetter <daniel.vetter@...ll.ch>
Cc:	Jiri Kosina <jkosina@...e.cz>,
	"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 Thu 2014-05-15 17:31:54, Daniel Vetter wrote:
> On Thu, May 15, 2014 at 5:29 PM, Jiri Kosina <jkosina@...e.cz> wrote:
> >> > Note that X do work somehow after resume (I can't switch virtual
> >> > desktops and dialog is stuck on screen, but it is not complete
> >> > failure). I can do ctrl-alt-f1 and get to useful prompt.
> >>
> >> Oops. You were right. It seems it is duplicate after all.
> >>
> >> [drm:init_ring_common] *ERROR* render ring initialization failed ctl 0001f001 head 00001020 tail 00000000 start 00003000
> >
> > Pavel, thanks a lot for testing.
> >
> > Adding Daniel and Chris to CC -- we have another incarnation of the bug
> > that is being chased in 76554.
> 
> Someone succeeding at a bisect would be awesome ... Note that the only
> key here is the ring init failure in dmesg.

Oh and... the machine has problems comming up after reboot (never seen
those before 3.15). Sometimes, boot will hang with blank screen, and hard
powerdown is needed...
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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