[Bug 78684] New: [drm:ring_stuck] *ERROR* Kicking stuck wait on render ring while using WebGL in Chromium

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=78684

          Priority: medium
            Bug ID: 78684
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: [drm:ring_stuck] *ERROR* Kicking stuck wait on render
                    ring while using WebGL in Chromium
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: markus at unixforces.net
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

Created attachment 99013
  --> https://bugs.freedesktop.org/attachment.cgi?id=99013&action=edit
/sys/class/drm/card0/error

I am experiencing hangs while browsing on the new WebGL version of Google Maps
or even browsing http://get.webgl.org/ using Chromium. Versions involved are:

xorg-server: 1.15.1
xf86-video-intel: 2.99.911
mesa: 10.1.3
chromium: 34.0.1847.132

dmesg reads:

[  254.743750] [drm:ring_stuck] *ERROR* Kicking stuck wait on render ring
[  254.743758] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[  254.743760] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[  254.743761] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[  254.743762] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[  254.743763] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[  259.744595] [drm:ring_stuck] *ERROR* Kicking stuck wait on render ring
[  280.756142] [drm:ring_stuck] *ERROR* Kicking stuck wait on render ring
[  328.768255] [drm:ring_stuck] *ERROR* Kicking stuck wait on render ring

/sys/class/drm/card0/error is attached.

I also get a backtrace in my journal:

May 14 09:10:37 dain slim[461]: (EE) [mi] EQ overflow continuing.  200 events
have been dropped.
May 14 09:10:37 dain slim[461]: (EE)
May 14 09:10:37 dain slim[461]: (EE) Backtrace:
May 14 09:10:37 dain slim[461]: (EE) 0: /usr/bin/X (xorg_backtrace+0x48)
[0x57c858]
May 14 09:10:37 dain slim[461]: (EE) 1: /usr/bin/X (QueuePointerEvents+0x52)
[0x44d0d2]
May 14 09:10:37 dain slim[461]: (EE) 2:
/usr/lib64/xorg/modules/input/evdev_drv.so (0x7f58d9400000+0x5a1d)
[0x7f58d9405a1d]
May 14 09:10:37 dain slim[461]: (EE) 3: /usr/bin/X (0x400000+0x72a08)
[0x472a08]
May 14 09:10:37 dain slim[461]: (EE) 4: /usr/bin/X (0x400000+0x9aabd)
[0x49aabd]
May 14 09:10:37 dain slim[461]: (EE) 5: /lib64/libpthread.so.0
(0x7f58dd9ee000+0xf540) [0x7f58dd9fd540]
May 14 09:10:37 dain slim[461]: (EE) 6: /usr/bin/X (0x400000+0x180680)
[0x580680]
May 14 09:10:37 dain slim[461]: (EE) 7: /lib64/libpthread.so.0
(0x7f58dd9ee000+0xf540) [0x7f58dd9fd540]
May 14 09:10:37 dain slim[461]: (EE) 8: /lib64/libc.so.6 (ioctl+0x7)
[0x7f58dc32f6f7]
May 14 09:10:37 dain slim[461]: (EE) 9:
/usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f58dac19000+0x22a5c)
[0x7f58dac3ba5c]
May 14 09:10:37 dain slim[461]: (EE) 10:
/usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f58dac19000+0x2b3bc)
[0x7f58dac443bc]
May 14 09:10:37 dain slim[461]: (EE) 11:
/usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f58dac19000+0x38c5d)
[0x7f58dac51c5d]
May 14 09:10:37 dain slim[461]: (EE) 12:
/usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f58dac19000+0x43f7b)
[0x7f58dac5cf7b]
May 14 09:10:37 dain slim[461]: (EE) 13: /usr/bin/X (0x400000+0x16da33)
[0x56da33]
May 14 09:10:37 dain slim[461]: (EE) 14: /usr/bin/X (0x400000+0xbf5a5)
[0x4bf5a5]
May 14 09:10:37 dain slim[461]: (EE) 15: /usr/bin/X (0x400000+0xce1dc)
[0x4ce1dc]
May 14 09:10:37 dain slim[461]: (EE) 16: /usr/bin/X (0x400000+0xcf1c8)
[0x4cf1c8]
May 14 09:10:37 dain slim[461]: (EE) 17: /usr/bin/X (0x400000+0x3645e)
[0x43645e]
May 14 09:10:37 dain slim[461]: (EE) 18: /usr/bin/X (0x400000+0x3a29a)
[0x43a29a]
May 14 09:10:37 dain slim[461]: (EE) 19: /lib64/libc.so.6
(__libc_start_main+0xf5) [0x7f58dc272ad5]
May 14 09:10:37 dain slim[461]: (EE) 20: /usr/bin/X (0x400000+0x25a3e)
[0x425a3e]

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