linux-kernel - Re: [regression] Re: 4.11-rc0, thinkpad x220: GPU hang

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Message-ID: <20170325213342.GA11529@amd>
Date:   Sat, 25 Mar 2017 22:33:43 +0100
From:   Pavel Machek <pavel@....cz>
To:     Chris Wilson <chris@...is-wilson.co.uk>,
        kernel list <linux-kernel@...r.kernel.org>,
        daniel.vetter@...el.com, jani.nikula@...ux.intel.com,
        intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org
Subject: Re: [regression] Re: 4.11-rc0, thinkpad x220: GPU hang

On Mon 2017-03-06 12:23:41, Chris Wilson wrote:
> On Mon, Mar 06, 2017 at 01:10:48PM +0100, Pavel Machek wrote:
> > On Mon 2017-03-06 11:15:28, Chris Wilson wrote:
> > > On Mon, Mar 06, 2017 at 12:01:51AM +0100, Pavel Machek wrote:
> > > > Hi!
> > > > 
> > > > > > mplayer stopped working after a while. Dmesg says:
> > > > > > 
> > > > > > [ 3000.266533] cdc_ether 2-1.2:1.0 usb0: register 'cdc_ether' at
> > > > 
> > > > Now I'm pretty sure it is a regression in v4.11-rc0. Any ideas what to
> > > > try? Bisect will be slow and nasty :-(.
> > > 
> > > I came the conclusion that #99671 is the ring HEAD overtaking the TAIL,
> > > and under the presumption that your bug matches (as the symptoms do):
> > > 
...
> >  static void i9xx_emit_breadcrumb(struct drm_i915_gem_request *req,
> > 
> > Hmm. But your next mail suggest that it may not be smart to try to
> > boot it? :-).
> 
> Don't bother, it'll promptly hang.

Any news here? Is there chance this is fixed in -rc4?
									Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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