[Bug 83721] New: i915 hung GPU causing segfault in xorg: [drm:i915_context_is_banned] *ERROR* gpu hanging too fast, banning!

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=83721

          Priority: medium
            Bug ID: 83721
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: i915 hung GPU causing segfault in xorg:
                    [drm:i915_context_is_banned] *ERROR* gpu hanging too
                    fast, banning!
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: jpeeler at gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

Created attachment 106068
  --> https://bugs.freedesktop.org/attachment.cgi?id=106068&action=edit
GPU error state

This may be a duplicate, not sure.

I have a Lenovo T520 that's docked with an external monitor connected via
Displayport. Also have an additional screen connected via a plugable USB
display adapter (assuming that's not related).

No idea how to reproduce, but the frequency seems to be increasing of late.

System environment:
-- chipset: i915
-- system architecture: 64-bit
-- xf86-video-intel: xorg-x11-drv-intel-2.21.15-7.fc20.x86_64
-- xserver: xorg-x11-server 1.14.4-11.fc20
-- mesa: mesa-dri-drivers-10.1.5-1.20140607.fc20.x86_64
-- libdrm: libdrm-2.4.54-1.fc20.x86_64
-- kernel: 3.15.10-201.fc20.x86_64
-- Linux distribution: Fedora 20
-- Machine or mobo model: Lenovo T520
-- Display connector: Displayport

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