[Bug 88818] New: [BSW]igt/drv_missed_irq_hang fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88818

            Bug ID: 88818
           Summary: [BSW]igt/drv_missed_irq_hang fails
           Product: DRI
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: huax.lu at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 112869
  --> https://bugs.freedesktop.org/attachment.cgi?id=112869&action=edit
dmesg

==System Environment==
--------------------------
Regression:  not sure

no-working platforms: BSW

==kernel==
--------------------------
drm-intel-nightly/67e9eb08a3b967b1ac6b7ec4588a93a2cb030cae
commit 67e9eb08a3b967b1ac6b7ec4588a93a2cb030cae
Author: Daniel Vetter <daniel.vetter at ffwll.ch>
Date:   Fri Jan 23 17:04:55 2015 +0100

    drm-intel-nightly: 2015y-01m-23d-16h-04m-34s UTC integration manifest

==Bug detailed description==
-----------------------------
It fails on -nightly and -next-queued kernel, and works well on -fixes kernel.
In our earlier automation testing, the result is pass, bug I am unable
reproduce the pass on commit 140fd38dc4962.
This fail is similar with BDW's bug 88437.It also has bug 86189 on BSW.

root at x-bsw01:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests#
./drv_missed_irq_hang
Interrupts masked
missed interrupts undetected
root at x-bsw01:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# echo $?
1

==Reproduce steps==
---------------------------- 
1. ./drv_missed_irq_hang

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