GPU Hang in Intel Driver

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Will take a look. Thanks again!


On Wed, Apr 3, 2013 at 5:02 PM, Daniel Vetter <daniel at ffwll.ch> wrote:

> On Wed, Apr 03, 2013 at 04:54:31PM -0400, Dihan Wickremasuriya wrote:
> > mesa 8.0.4-r1, libdrm 2.4.43 and xf86-video-intel 2.21.5 on top of kernel
> > 3.8.5 seems to work well.  No hangs or crashes so far.  Thank you very
> much
> > for your help with this!
> >
> > Would you also happen to know where I can get a patch of the i915 kernel
> > fix that has been backported to version 3.2?
>
> The kernel fix from the bug report you've cited does not apply to your
> platform. For your platform I'm not sure about the support status on
> vanilla 3.2 kernels, but distro's tend to backport the entire drm
> directory anyway.
> -Daniel
>
> >
> > Best regards,
> > Dihan
> >
> >
> > On Wed, Apr 3, 2013 at 1:02 PM, Dihan Wickremasuriya <
> > dwickremasuriya at rethinkrobotics.com> wrote:
> >
> > > Will try mesa 8.0 or newer and report back. I had already bumped up
> libdrm
> > > and xf86-video-intel to the latest available (2.4.43 and 2.21.5
> > > respectively).
> > >
> > > Thanks,
> > > Dihan
> > >
> > >
> > > On Wed, Apr 3, 2013 at 12:21 PM, Daniel Vetter <daniel.vetter at ffwll.ch
> >wrote:
> > >
> > >> On Wed, Apr 3, 2013 at 5:58 PM, Dihan Wickremasuriya <
> > >> dwickremasuriya at rethinkrobotics.com> wrote:
> > >>
> > >>> Thanks for the quick response and adding the mailing list. I did in
> fact
> > >>> attach the error_state in my original mail. Please let me know if
> it's not
> > >>> the one you were looking for (re-attached).
> > >>>
> > >>
> > >> Oops, missed that one. You have a gen7 ivb machine, so the bug you've
> > >> reference is _definitely_ not yours - that one's for gen2.
> > >>
> > >> Now looking at your error state I've noticed that your mesa is using a
> > >> massively outdated version of 3DSTATE_HIER_DEPTH_BUFFER, which has
> been
> > >> fixed with 8.0, the broken version shipped with 7.11.
> > >>
> > >> Please upgrade to the latest released versions of mesa, libdrm,
> > >> xf86-video-intel, your bug is very likely fixed already (since 8.0 is
> > >> pretty old for gen7).
> > >>
> > >> Yours, Daniel
> > >>
> > >>>
> > >>> Also added a subject to the thread.
> > >>>
> > >>> Best regards,
> > >>> Dihan
> > >>>
> > >>> On Wed, Apr 3, 2013 at 11:46 AM, Daniel Vetter <
> daniel.vetter at ffwll.ch>wrote:
> > >>>
> > >>>> Hi all,
> > >>>>
> > >>>> Two things:
> > >>>> - Please _always_ include a public mailing list when reporting bugs,
> > >>>> your dear maintainer sometimes slacks off.
> > >>>> - We need to see the error_state before we can assess what kind of
> hang
> > >>>> you have (it's like gettting a SIGSEGV for a normal program, no two
> gpu
> > >>>> hangs are the same ...).
> > >>>>
> > >>>> Cheers, Daniel
> > >>>>
> > >>>> On Wed, Apr 3, 2013 at 5:42 PM, Dihan Wickremasuriya <
> > >>>> dwickremasuriya at rethinkrobotics.com> wrote:
> > >>>>
> > >>>>> Hi Chris/Daniel,
> > >>>>>
> > >>>>> This is Dihan from Rethink Robotics and we were hoping you could
> help
> > >>>>> with the GPU hang problem in the i915 driver mentioned in bug
> #26345:
> > >>>>> https://bugs.freedesktop.org/show_bug.cgi?id=26345
> > >>>>>
> > >>>>> We are running into the same problem with the 3.8.5 kernel (which
> has
> > >>>>> the fix mentioned in comment #153 of the bug report) when running
> a Qt 5
> > >>>>> application in Gentoo. At times the entire X session would freeze.
> The
> > >>>>> x11-perf tests described in the bug report run without any issues
> though.
> > >>>>>
> > >>>>> Would you happen to know whether this is because of an issue in the
> > >>>>> driver that is not currently being addressed by the fix? I have
> attached
> > >>>>> the Xorg log, the dmesg output and i915_error_state from a hung
> session.
> > >>>>> Please let me know if you need any more info. Thanks in advance!
> > >>>>>
> > >>>>> Best regards,
> > >>>>> Dihan
> > >>>>>
> > >>>>
> > >>>>
> > >>>>
> > >>>> --
> > >>>> Daniel Vetter
> > >>>> Software Engineer, Intel Corporation
> > >>>> +41 (0) 79 365 57 48 - http://blog.ffwll.ch
> > >>>>
> > >>>
> > >>>
> > >>
> > >>
> > >> --
> > >> Daniel Vetter
> > >> Software Engineer, Intel Corporation
> > >> +41 (0) 79 365 57 48 - http://blog.ffwll.ch
> > >>
> > >
> > >
>
> --
> Daniel Vetter
> Software Engineer, Intel Corporation
> +41 (0) 79 365 57 48 - http://blog.ffwll.ch
>
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