[Bug 72107] New: [BDW]igt/gem_render_linear_blits causes gpu hangs

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=72107

          Priority: medium
            Bug ID: 72107
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: [BDW]igt/gem_render_linear_blits causes gpu hangs
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: jinxianx.guo at intel.com
          Hardware: Other
            Status: NEW
           Version: XOrg CVS
         Component: DRM/Intel
           Product: DRI

Created attachment 89951
  --> https://bugs.freedesktop.org/attachment.cgi?id=89951&action=edit
dmesg

ystem Environment:
--------------------------
Platform: Broadwell
kernel   (drm-intel-nexe-queued)8b4f49e03901e82898540bd1189333edf9588d74
Some additional commit info:
Author: Jesse Barnes <jbarnes at virtuousgeek.org>
Date:   Mon Nov 25 15:51:16 2013 -0800

    drm/i915: split fb allocation and initialization v2

    If we use a stolen buffer, our probe callback shouldn't allocate a new
    buffer; we should re-use the one from the BIOS instead if possible.

    v2: fix locking (Jesse)

Bug detailed description:
-----------------------------
Igt/gem_render_linear_blits causes gpu hangs.

This is the first time to run igt test on Broadwell.

[  163.658036] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[  163.658129] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[  163.658234] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[  163.658303] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[  163.658378] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.

Steps:
---------------------------
./gem_render_linear_blits

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