From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thomas Meyer <thomas@m3y3r.de>
Subject: Re: 3.13.1 - WARNING at
 drivers/gpu/drm/i915/i915_irq.c:1240
Date: Sat, 08 Feb 2014 19:30:54 +0100
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To: Daniel Vetter <daniel@ffwll.ch>
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Am Samstag, den 08.02.2014, 17:38 +0100 schrieb Daniel Vetter:
> On Sat, Feb 8, 2014 at 12:51 PM, Thomas Meyer <thomas@m3y3r.de> 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.


> 
> Cheers, Daniel