Re: [Intel-gfx] linux-next: Tree for Jul 25 [ call-trace: drm | drm-intel related? ]

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On Thu, Jul 25, 2013 at 04:23:40PM +0200, Sedat Dilek wrote:
> On Thu, Jul 25, 2013 at 3:36 PM, Daniel Vetter <daniel@xxxxxxxx> wrote:
> > On Thu, Jul 25, 2013 at 12:37:44PM +0200, Sedat Dilek wrote:
> >> On Thu, Jul 25, 2013 at 12:21 PM, Jani Nikula
> >> <jani.nikula@xxxxxxxxxxxxxxx> wrote:
> >> > On Thu, 25 Jul 2013, Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote:
> >> >> On Thu, Jul 25, 2013 at 12:02 PM, Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote:
> >> >>> On Thu, Jul 25, 2013 at 11:44 AM, Jani Nikula
> >> >>> <jani.nikula@xxxxxxxxxxxxxxx> wrote:
> >> >>>> On Thu, 25 Jul 2013, Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote:
> >> >>>>> On Thu, Jul 25, 2013 at 7:12 AM, Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
> >> >>>>>> Hi all,
> >> >>>>>>
> >> >>>>>> Changes since 20130724:
> >> >>>>>>
> >> >>>>>> Removed tree:
> >> >>>>>>         arm-dt (at maintainer's request)
> >> >>>>>>
> >> >>>>>> The wireless-next tree lost its build failure and gained a conflict
> >> >>>>>> against Linus' tree.
> >> >>>>>>
> >> >>>>>> The tty tree lost its build failure.
> >> >>>>>>
> >> >>>>>> The staging tree gained a build failure for which I disabled a driver.
> >> >>>>>>
> >> >>>>>> ----------------------------------------------------------------------------
> >> >>>>>>
> >> >>>>>
> >> >>>>> [ CCing drm and drm-intel folks ]
> >> >>>>>
> >> >>>>> With today's next-20130725 I see the following:
> >> >>>>
> >> >>>> Use of dev_priv->gt_lock in I915_WRITE through
> >> >>>> intel_disable_gt_powersave before spin lock init, caused by
> >> >>>>
> >> >>>> commit 181d1b9e31c668259d3798c521672afb8edd355c
> >> >>>> Author: Daniel Vetter <daniel.vetter@xxxxxxxx>
> >> >>>> Date:   Sun Jul 21 13:16:24 2013 +0200
> >> >>>>
> >> >>>>     drm/i915: fix up gt init sequence fallout
> >> >>>>
> >> >>>
> >> >>> Ah, cool.
> >> >>>
> >> >>> I assumed/tested "drm/i915: fix the racy object accounting", but this
> >> >>> does not fix it.
> >> >>> Will try with yours.
> >> >>>
> >> >>
> >> >> Sorry, Jani.
> >> >>
> >> >> next-20130725 ships the patch you pointed, too.
> >> >
> >> > Confused. I meant that the above mentioned commit "drm/i915: fix up gt
> >> > init sequence fallout" causes the problem. The patch I included in my
> >> > mail should fix it. Could you try that please?
> >> >
> >>
> >> [ Note2myself: Do not read half of the message... ]
> >>
> >> The bad... Your patch needed some refresh against next-20130725 (guess
> >> it's against drm-intel-nightly).
> >>
> >> The good... YES, your patch fixes the issue for me!
> >>
> >> The ugly... /me.
> >>
> >> Feel free to add my:
> >>
> >>        Tested-by: Sedat Dilek <sedat.dilek@xxxxxxxxx>
> >>
> >> Thanks for the quick fix!
> >
> > Thanks a lot for the report, since this should be something I should have
> > caught. And for added insult the offending patch is already in Linus' tree
> > :( Patch merged to -fixes.
> 
> Hmmm, don't you merge -fixes into -nightly?

I do, but it seems to only blow up with spinlock debugging enabling I
think. Our QA should run full debug buils in the -nightly testing, but
apparently they didn't catch this. I'm looking into what went wrong here
and fix up the process.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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