[Bug 83182] New: [HSW Regression]igt/kms_rotation_crc some subcases timeout

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=83182

          Priority: high
            Bug ID: 83182
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: [HSW Regression]igt/kms_rotation_crc some subcases
                    timeout
        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: unspecified
         Component: DRM/Intel
           Product: DRI

Created attachment 105375
  --> https://bugs.freedesktop.org/attachment.cgi?id=105375&action=edit
dmesg

==System Environment==
--------------------------
Regression: Yes. 
Good commit on -next-queued: 3a5f87c286515c54ff5c52c3e64d0c522b7570c0

Non-working platforms: HSW

==kernel==
--------------------------
origin/drm-intel-nightly: e91331cf71c509af3dfae75cd9bca3db13d7da95(fails)
    drm-intel-nightly: 2014y-08m-27d-21h-32m-10s integration manifest
origin/drm-intel-next-queued: 661ccef518a23dd6b3aff11ca6eee9c71568f37a(works)
    drm/i915/bdw: BDW Software Turbo
origin/drm-intel-fixes: 813008cd3e93ea8a571b2b7d5b9360a3105b50f7(fails)
    drm/i915: don't warn if backlight unexpectedly enabled

==Bug detailed description==
igt/kms_rotation_crc some subcases timeout

Case list:
igt/kms_rotation_crc/primary-rotation
igt/kms_rotation_crc/sprite-rotation

Output:
[root at x-hsw24 tests]# ./kms_rotation_crc --run-subtest primary-rotation
IGT-Version: 1.7-g50166d2 (x86_64) (Linux:
3.16.0_drm-intel-next-queued_661cce_20140828+ x86_64)
Subtest primary-rotation: TIMEOUT
[root at x-hsw24 tests]#
[root at x-hsw24 tests]# ./kms_rotation_crc --run-subtest sprite-rotation
IGT-Version: 1.7-g50166d2 (x86_64) (Linux:
3.16.0_drm-intel-next-queued_661cce_20140828+ x86_64)
Subtest sprite-rotation: TIMEOUT


==Reproduce steps==
---------------------------- 
1. ./kms_rotation_crc --run-subtest primary-rotation

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