[Bug 85359] New: [BSW Regression]igt/kms_flip_tiling/flip-changes-tiling fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=85359

            Bug ID: 85359
           Summary: [BSW
                    Regression]igt/kms_flip_tiling/flip-changes-tiling
                    fails
           Product: DRI
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: high
         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 108286
  --> https://bugs.freedesktop.org/attachment.cgi?id=108286&action=edit
dmesg

==System Environment==
--------------------------
Regression: YES
good commit: fff95501f2095fa8a9dbd7e177bbf642d241b2fe
bad commit:  1577c3c641970550bf9c4038f152e33c5842804

Non-working platforms: BSW

==kernel==
--------------------------
drm-intel-nightly/77683b77aa4da6e1788838dad2d2a15b0dfc290

==Bug detailed description==
-----------------------------
It fails on BSW with -nightly kernel and -queued kernel. It works well on
-fixes kernel.

output:
IGT-Version: 1.8-g303fe74 (x86_64) (Linux:
3.17.0-rc5_drm-intel-next-queued_1577c3_20141023+ x86_64)
Test assertion failure function test_flip_changes_tiling, file
kms_flip_tiling.c:110:
Failed assertion: igt_crc_equal(&reference_crc, &crc)
Subtest flip-changes-tiling: FAIL (2.254s)

==Reproduce steps==
---------------------------- 
1. ./kms_flip_tiling --run-subtest flip-changes-tiling

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