[Bug 77974] New: stuck on render and blitter ring

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=77974

          Priority: medium
            Bug ID: 77974
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: stuck on render and blitter ring
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: major
    Classification: Unclassified
                OS: Linux (All)
          Reporter: torvalds at linux-foundation.org
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: XOrg CVS
         Component: DRM/Intel
           Product: DRI

Created attachment 98045
  --> https://bugs.freedesktop.org/attachment.cgi?id=98045&action=edit
GPU crash dump from /sys/class/drm/card0/error

GPU hang on i5-2400S (Sandybridge, "Intel HD graphics 2000")

Running current google chrome stable on up-to-date Fedora 20 and very recent
self-built kernel, i915 seems to hang particularly when running flash
applications:

  [drm] stuck on render ring
  [drm] stuck on blitter ring
  [drm] GPU HANG: ecode 0:0xf4e9fffe, in Xorg [854], 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_context_is_banned] *ERROR* gpu hanging too fast, banning!
chrome[2144]: segfault at 280 ip 00007fd972726368 sp 00007fff1fe1ee00 error 4
in i965_dri.so[7fd9723fb000+4fe000]
  [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off
  chrome[12885]: segfault at 280 ip 00007f0e30cf2368 sp 00007fff69983c30 error
4 in i965_dri.so[7f0e309c7000+4fe000]
  chrome[12896]: segfault at 280 ip 00007fad08d6c368 sp 00007fffb00d8b70 error
4 in i965_dri.so[7fad08a41000+4fe000]

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