[Webkit-unassigned] [Bug 161862] [GTK] WebProcess from WebKitGtk+ 2.13.91 hangs my Intel GPU

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=161862

--- Comment #7 from Andres Gomez Garcia <agomez at igalia.com> ---
(In reply to comment #6)
> (In reply to comment #5)
> 
> > I will look for the version in which this started happening but I think it
> > was from 2.13.4 to 2.13.90 ...
> 
> Yes, I think this was the case.
> 
> In bug 160389 I commented that, using the patch proposed, my whole desktop
> was getting frozen. I didn't research much further but I suspect that the
> GPU hang was introduced by that patch.
> 
> Then, the patch was committed and I moved back to the 2.12.x series in my
> daily use because 2.13.x was not usable in my box any more ...

FTR, I'm now testing 2.13.4 from Debian experimental and I've already gotten this:

$ cat /var/log/kern.log

[snip]

Sep 13 13:58:15 pomeron kernel: [11660.199863] [drm:ironlake_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Sep 13 13:58:15 pomeron kernel: [11660.200645] [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo underrun on pch transcoder A
Sep 13 13:58:15 pomeron kernel: [11660.200671] [drm:cpt_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun
Sep 13 13:58:15 pomeron kernel: [11660.202018] [drm:ironlake_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun
Sep 13 13:58:16 pomeron kernel: [11660.223535] [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo underrun on pch transcoder B
Sep 13 13:58:16 pomeron kernel: [11660.689752] [drm:ironlake_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun
Sep 13 13:58:16 pomeron kernel: [11660.722393] [drm:intel_check_pch_fifo_underruns [i915]] *ERROR* pch fifo underrun on pch transcoder B


However, after this small hiccup, I could keep using the desktop/browser without problems ...

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