Re: 3.13.1 - WARNING at drivers/gpu/drm/i915/i915_irq.c:1240

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Am Montag, den 10.02.2014, 09:58 +0100 schrieb Daniel Vetter:
> On Sat, Feb 08, 2014 at 07:30:54PM +0100, Thomas Meyer wrote:
> > Am Samstag, den 08.02.2014, 17:38 +0100 schrieb Daniel Vetter:
> > > On Sat, Feb 8, 2014 at 12:51 PM, Thomas Meyer <thomas@xxxxxxxx> wrote:
> > > > Am Freitag, den 07.02.2014, 09:46 +0100 schrieb Daniel Vetter:
> > > >> On Thu, Feb 06, 2014 at 11:29:34PM +0100, Thomas Meyer wrote:
> > > >> > Am Dienstag, den 04.02.2014, 21:17 +0100 schrieb Daniel Vetter:
> > > >> > > On Tue, Feb 04, 2014 at 08:37:02PM +0100, Thomas Meyer wrote:
> > > >> > > >
> > > >> > > > Hi,
> > > >> > > >
> > > >> > > > I see a *lot* of these warning in 3.13.1.
> > > >> > > > 3.12.x never showed this problem.
> > > >> > > > Any ideas?!
> > > >> > >
> > > >> > > Can you please try latest the drm-intel-nightly git branch from
> > > >> > > git://anongit.freedesktop.org/drm-intel ?
> > > >> > >
> > > >> > > If that one's still affected then please boot with drm.debug=0xe added to
> > > >> > > your kernel cmdline, reproduce the WARN and attach the complete dmesg.
> > > >> > >
> > > >> >
> > > >> > Hi,
> > > >> >
> > > >> > with 3.13.0-drm-00890-g4055ebc (drm-intel-nightly) I get these warnings:
> > > >>
> > > >> Can you please boot with drm.debug=0xe and attach the complete dmesg?
> > > >
> > > > here you go. dmesg in attachment.
> > > 
> > > Hm, this one doesn't contain the WARN backtrace when the driver loads.
> > > Does it only happen occasionally? If so can you please try to grab a
> > > dmesg with drm debugging enabled and the backtrace in it?
> > 
> > Hi,
> > 
> > the WARNINGs did only show in 3.13.1 without the debug option. With the
> > debug option turned on the WARNINGs show up in neither drm-intel-nightly
> > nor 3.13.2.
> > So either the debug option somehow interfere with the WARNINGs or the
> > bug was fixed between 3.13.1 and drm-intel-nightly resp. 3.13.2.
> 
> Can you please double-check that the bug is gone in 3.13.2, even without
> the debug output enabled? I've looked at the stable patches and there's
> nothing for i915 between .1 and .2.

Mhh. strange. I don't encounter these warning anymore with 3.13.2...
Maybe something else did trigger those?!
Anyway, I'll watch out for those warning in the future. And a big thanks
for your great support.
I'll update to 3.13.3 now.

> -Daniel



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