[Bug 90635] New: Intel GPU hang (crash dump attached)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90635

            Bug ID: 90635
           Summary: Intel GPU hang (crash dump attached)
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: mactalla.obair at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 116035
  --> https://bugs.freedesktop.org/attachment.cgi?id=116035&action=edit
/sys/class/drm/card0/error

I don't know what triggers this, so I'm not sure if there is an existing bug
open for this particular issue.  Occasionally the screen will go black and
syslog has:

[542758.816056] [drm] stuck on render ring
[542758.816062] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[542758.816064] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[542758.816065] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[542758.816067] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[542758.816068] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[542758.817172] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x917b000 ctx 0) at 0x917be0c
[542758.940092] [drm] GMBUS [i915 gmbus vga] timed out, falling back to bit
banging on pin 2
[542759.324064] [drm:i915_reset] *ERROR* Failed to reset chip.

Rebooting the machine clears the GPU problem.

GPU:
00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960
Integrated Graphics Controller (primary) (rev 0c)

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