[Bug 93505] New: GPU HANG: ecode 6:0:0x87e8fffd, in Xorg [4626], reason: Ring hung, action: reset

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93505

            Bug ID: 93505
           Summary: GPU HANG: ecode 6:0:0x87e8fffd, in Xorg [4626],
                    reason: Ring hung, action: reset
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: francois at fmarier.org
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 120686
  --> https://bugs.freedesktop.org/attachment.cgi?id=120686&action=edit
GPU crash dump from /sys/class/drm/card0/error

I just noticed this in my logs:

  [drm] stuck on render ring
  [drm] GPU HANG: ecode 6:0:0x87e8fffd, in Xorg [4626], reason: Ring hung,
action: reset
  [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack,
including userspace.
  [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI ->
DRM/Intel
  [drm] drm/i915 developers can then reassign to the right component if it's
not a kernel issue.
  [drm] The gpu crash dump is required to analyze gpu hangs, so please always
attach it.
  [drm] GPU crash dump saved to /sys/class/drm/card0/error
  drm/i915: Resetting chip after gpu hang

The crash dump is attached.

-- chipset: Sandybridge Mobile
-- system architecture: amd64
-- xf86-video-intel: xserver-xorg-video-intel 2:2.99.917-2
-- xserver: xserver-xorg-core 2:1.17.3-2
-- mesa: libegl1-mesa 11.0.8-1
-- libdrm: libdrm-intel1 2.4.65-3
-- kernel: 4.3.0-1
-- Linux distribution: Debian Sid
-- Machine or mobo model: Lenovo ThinkPad T420
-- Display connector: internal

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