[Bug 86405] New: [3.16] GPU HANG: ecode 0:0x85fffff8, in chrome [3338], reason: Ring hung, action: reset

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=86405

            Bug ID: 86405
           Summary: [3.16] GPU HANG: ecode 0:0x85fffff8, in chrome [3338],
                    reason: Ring hung, action: reset
           Product: DRI
           Version: XOrg git
          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: mathias.bogaert at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 109636
  --> https://bugs.freedesktop.org/attachment.cgi?id=109636&action=edit
gpu crash dump

In dmesg:
[103115.648697] [drm] stuck on render ring
[103115.649344] [drm] GPU HANG: ecode 0:0x85fffff8, in chrome [3338], reason:
Ring hung, action: reset
[103115.649346] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[103115.649346] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[103115.649347] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[103115.649347] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[103115.649348] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[103117.649858] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off

~ ❯❯❯ uname -a
Linux aoba 3.16.0-24-generic #32-Ubuntu SMP Tue Oct 28 13:07:32 UTC 2014 x86_64
x86_64 x86_64 GNU/Linux

Found this in dmesg as well:
[45315.265221] [drm] Wrong MCH_SSKPD value: 0x16040307
[45315.265222] [drm] This can cause pipe underruns and display issues.
[45315.265222] [drm] Please upgrade your BIOS to fix this.
[45317.161633] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off
but not sure if it's related.

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