[Bug 89054] New: [SNB]igt/kms_cursor_crc some subcases fail.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89054

            Bug ID: 89054
           Summary: [SNB]igt/kms_cursor_crc some subcases fail.
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: hengx.ding at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 113296
  --> https://bugs.freedesktop.org/attachment.cgi?id=113296&action=edit
dmesg

==System Environment==
--------------------------
Regression: no, I didn't find a good commit.
Non-working platforms:  SNB
==kernel==
--------------------------
drm-intel-nightly-2015-02-10/ad95125eaef18eebb9f47261ce3c99957f5953de

==Bug detailed description==
-----------------------------
Affected cases:
igt/kms_cursor_crc/cursor-64x64-offscreen 
igt/kms_cursor_crc/cursor-256x256-offscreen 

./kms_cursor_crc --run-subtest cursor-256x256-offscreen
IGT-Version: 1.9-gbef692d (x86_64) (Linux:
3.19.0_drm-intel-nightly_ad9512_20150210+ x86_64)
Beginning cursor-256x256-offscreen on pipe A, connector VGA-1
..................................................(kms_cursor_crc:4341)
igt-kms-CRITICAL: Test assertion failure function igt_cursor_commit_legacy,
file igt_kms.c:1394:
(kms_cursor_crc:4341) igt-kms-CRITICAL: Failed assertion: ret == 0
(kms_cursor_crc:4341) igt-kms-CRITICAL: Last errno: 34, Numerical result out of
range
Subtest cursor-256x256-offscreen: FAIL (12.456s)

 ./kms_cursor_crc --run-subtest cursor-64x64-offscreen
IGT-Version: 1.9-gbef692d (x86_64) (Linux:
3.19.0_drm-intel-nightly_ad9512_20150210+ x86_64)
Beginning cursor-64x64-offscreen on pipe A, connector VGA-1
..................................................(kms_cursor_crc:4344)
igt-kms-CRITICAL: Test assertion failure function igt_cursor_commit_legacy,
file igt_kms.c:1394:
(kms_cursor_crc:4344) igt-kms-CRITICAL: Failed assertion: ret == 0
(kms_cursor_crc:4344) igt-kms-CRITICAL: Last errno: 34, Numerical result out of
range
Subtest cursor-64x64-offscreen: FAIL (12.407s)

==Reproduce steps==
---------------------------- 
1. ./kms_cursor_crc --run-subtest cursor-256x256-offscreen
2. ./kms_cursor_crc --run-subtest cursor-64x64-offscreen

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