[Bug 97284] New: i915 crash/hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97284

            Bug ID: 97284
           Summary: i915 crash/hang
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: bugs.freedesktop.org at qsuscs.de
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 125688
  --> https://bugs.freedesktop.org/attachment.cgi?id=125688&action=edit
crash dump

i915 crashes and/or hangs:
Aug 10 22:05:29 coruscant kernel: [drm] stuck on render ring
Aug 10 22:05:29 coruscant kernel: [drm] GPU HANG: ecode 9:0:0x84dffff8, in X
[1079], reason: Engine(s) hung, action: reset
Aug 10 22:05:29 coruscant kernel: [drm] GPU hangs can indicate a bug anywhere
in the entire gfx stack, including userspace.
Aug 10 22:05:29 coruscant kernel: [drm] Please file a _new_ bug report on
bugs.freedesktop.org against DRI -> DRM/Intel
Aug 10 22:05:29 coruscant kernel: [drm] drm/i915 developers can then reassign
to the right component if it's not a kernel issue.
Aug 10 22:05:29 coruscant kernel: [drm] The gpu crash dump is required to
analyze gpu hangs, so please always attach it.
Aug 10 22:05:29 coruscant kernel: [drm] GPU crash dump saved to
/sys/class/drm/card1/error
Aug 10 22:05:29 coruscant kernel: drm/i915: Resetting chip after gpu hang
Aug 10 22:05:31 coruscant kernel: [drm] RC6 on
Aug 10 22:05:39 coruscant kernel: [drm] stuck on render ring
Aug 10 22:05:39 coruscant kernel: [drm] GPU HANG: ecode 9:0:0x84dffff8, in X
[1079], reason: Engine(s) hung, action: reset
Aug 10 22:05:39 coruscant kernel: [drm:i915_set_reset_status [i915]] *ERROR*
gpu hanging too fast, banning!
Aug 10 22:05:39 coruscant kernel: drm/i915: Resetting chip after gpu hang
Aug 10 22:05:40 coruscant kernel: [drm] RC6 on

This is Linux 4.7.0-gentoo, though such hangs have been happening in earlier
kernels as well.  The system noticeable hangs for a few seconds and after that,
Chrome and other programs lag considerably in every action.

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