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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [GTK] WebProcess from WebKitGtk+ 2.13.91 hangs my Intel GPU"
href="https://bugs.webkit.org/show_bug.cgi?id=161862">161862</a>
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<th>Summary</th>
<td>[GTK] WebProcess from WebKitGtk+ 2.13.91 hangs my Intel GPU
</td>
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<th>Classification</th>
<td>Unclassified
</td>
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<th>Product</th>
<td>WebKit
</td>
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<th>Version</th>
<td>WebKit Nightly Build
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>Normal
</td>
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<th>Priority</th>
<td>P2
</td>
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<th>Component</th>
<td>WebKit Gtk
</td>
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
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<th>Reporter</th>
<td>agomez@igalia.com
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<th>CC</th>
<td>bugs-noreply@webkitgtk.org
</td>
</tr></table>
<p>
<div>
<pre>I'm using WebKitGtk+ with my own JHBuild setting:
<a href="https://github.com/tanty/jhbuild-epiphany/tree/master">https://github.com/tanty/jhbuild-epiphany/tree/master</a>
Epiphany 3.20.3 and WebKit 2.13.91.
I'm running Epiphany with the dconf key:
"process-model" = "shared-secondary-process"
The compilation was done with CMake args:
'-DPORT=GTK -DCMAKE_BUILD_TYPE=Release -DCMAKE_C_FLAGS_RELEASE="-O0 -g1 -DNDEBUG -DG_DISABLE_CAST_CHECKS" -DCMAKE_CXX_FLAGS_RELEASE="-O0 -g1 -DNDEBUG -DG_DISABLE_CAST_CHECKS"'
Just by opening the last closed session, the desktop gets stall, even when there is, apparently, no high CPU usage.
I can see this in the logs:
$ less /var/log/kern.log
[snip]
Sep 12 18:02:33 pomeron kernel: [ 142.207298] [drm:i915_hangcheck_elapsed [i915]] *ERROR* Hangcheck timer elapsed... render ring idle
Sep 12 18:03:33 pomeron kernel: [ 202.140067] [drm] no progress on render ring
Sep 12 18:03:33 pomeron kernel: [ 202.141208] [drm] GPU HANG: ecode 6:-1:0x00000000, reason: Ring hung, action: reset
Sep 12 18:03:33 pomeron kernel: [ 202.141212] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace.
Sep 12 18:03:33 pomeron kernel: [ 202.141214] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel
Sep 12 18:03:33 pomeron kernel: [ 202.141217] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue.
Sep 12 18:03:33 pomeron kernel: [ 202.141219] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it.
Sep 12 18:03:33 pomeron kernel: [ 202.141222] [drm] GPU crash dump saved to /sys/class/drm/card0/error
Sep 12 18:03:33 pomeron kernel: [ 202.141409] [drm:i915_switch_context [i915]] *ERROR* ring init context: -11
Sep 12 18:03:33 pomeron kernel: [ 202.143473] drm/i915: Resetting chip after gpu hang
Sep 12 18:03:33 pomeron kernel: [ 202.396871] [drm:ironlake_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Sep 12 18:03:33 pomeron kernel: [ 202.399002] [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo underrun on pch transcoder A
Sep 12 18:03:33 pomeron kernel: [ 202.399026] [drm:cpt_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun
Sep 12 18:03:33 pomeron kernel: [ 202.408353] [drm:ironlake_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun
Sep 12 18:03:33 pomeron kernel: [ 202.432732] [drm:intel_check_pch_fifo_underruns [i915]] *ERROR* pch fifo underrun on pch transcoder B
Sep 12 18:03:41 pomeron kernel: [ 210.163587] [drm] stuck on render ring
Sep 12 18:03:41 pomeron kernel: [ 210.163990] [drm] GPU HANG: ecode 6:0:0x0009090b, in WebKitWebProces [4143], reason: Ring hung, action: reset
Sep 12 18:03:41 pomeron kernel: [ 210.166054] drm/i915: Resetting chip after gpu hang
$ lspci -v
[snip]
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller])
Subsystem: Lenovo 2nd Generation Core Processor Family Integrated Graphics Controller
Flags: bus master, fast devsel, latency 0, IRQ 34
Memory at f0000000 (64-bit, non-prefetchable) [size=4M]
Memory at e0000000 (64-bit, prefetchable) [size=256M]
I/O ports at 5000 [size=64]
[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [d0] Power Management version 2
Capabilities: [a4] PCI Advanced Features
Kernel driver in use: i915
Kernel modules: i915
$ glxinfo | grep string
server glx vendor string: SGI
server glx version string: 1.4
client glx vendor string: Mesa Project and SGI
client glx version string: 1.4
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) Sandybridge Mobile
OpenGL core profile version string: 3.3 (Core Profile) Mesa 11.2.2
OpenGL core profile shading language version string: 3.30
OpenGL version string: 3.0 Mesa 11.2.2
OpenGL shading language version string: 1.30
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 11.2.2
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00
$ uname -a
Linux pomeron 4.6.0-1-amd64 #1 SMP Debian 4.6.1-1 (2016-06-06) x86_64 GNU/Linux</pre>
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