[Bug 90058] New: [BDW]igt/kms_cursor_crc/cursor-128x128-onscreen sporadically causes [i915]] *ERROR* The master control interrupt lied (SDE)!

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90058

            Bug ID: 90058
           Summary: [BDW]igt/kms_cursor_crc/cursor-128x128-onscreen
                    sporadically causes [i915]] *ERROR* The master control
                    interrupt lied (SDE)!
           Product: DRI
           Version: unspecified
          Hardware: All
                OS: Linux (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 115138
  --> https://bugs.freedesktop.org/attachment.cgi?id=115138&action=edit
dmesg

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

Non-working platforms: BDW

==kernel==
--------------------------
drm-intel-nightly/d600654ab94b325f253e267422dcf60302120ea0
commit d600654ab94b325f253e267422dcf60302120ea0
Author: Daniel Vetter <daniel.vetter at ffwll.ch>
Date:   Thu Apr 16 17:54:10 2015 +0200

    drm-intel-nightly: 2015y-04m-16d-15h-53m-28s UTC integration manifest

==Bug detailed description==
-----------------------------
It sporadically causes <3>[  138.640445] [drm:gen8_irq_handler [i915]] *ERROR*
The master control interrupt lied (SDE)!. Run it 2 cycles, it happens once.

Following cases also have this error:
igt at kms_cursor_crc@cursor-128x128-random
igt at kms_cursor_crc@cursor-128x128-sliding
igt at kms_cursor_crc@cursor-256x256-offscreen
igt at kms_cursor_crc@cursor-256x256-onscreen
igt at kms_cursor_crc@cursor-256x256-random
igt at kms_cursor_crc@cursor-64x64-offscreen
igt at kms_cursor_crc@cursor-64x64-onscreen
igt at kms_cursor_crc@cursor-64x64-random
igt at kms_cursor_crc@cursor-64x64-sliding

output:
IGT-Version: 1.10-gbeddb3b (x86_64) (Linux:
4.0.0_drm-intel-nightly_d60065_20150417+ x86_64)
Beginning cursor-128x128-onscreen on pipe A, connector eDP-1
............................
cursor-128x128-onscreen on pipe A, connector eDP-1: PASSED

Beginning cursor-128x128-onscreen on pipe B, connector eDP-1
............................
cursor-128x128-onscreen on pipe B, connector eDP-1: PASSED

Beginning cursor-128x128-onscreen on pipe C, connector eDP-1
............................
cursor-128x128-onscreen on pipe C, connector eDP-1: PASSED

Subtest cursor-128x128-onscreen: SUCCESS (24.188s)

==Reproduce steps==
---------------------------- 
1. ./kms_cursor_crc --run-subtest cursor-128x128-onscreen

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