[Bug 73962] New: [BDW Regression]igt/many kms_flip subcases fail

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=73962

          Priority: high
            Bug ID: 73962
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: [BDW Regression]igt/many kms_flip subcases fail
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: major
    Classification: Unclassified
                OS: Linux (All)
          Reporter: huax.lu at intel.com
          Hardware: All
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

Created attachment 92641
  --> https://bugs.freedesktop.org/attachment.cgi?id=92641&action=edit
dmesg

System Environment:
--------------------------
Platform: Broadwell
Kernel(drm-intel-nightly)83ac01f486397fd8d319a3e31d1f95beb05037c5

Bug detailed description:
------------------------- 
Many kms_flip subcases fail on Broadwell with -queued, -fixes and -nightly
kernel.

The latest known good commit: cba1c07377132fb87b2c73b395ef386da7e03f60
The latest known bad commit: 5d9544569e36a1489298d3df482f1574d9512de8

run ./kms_flip --run-subtest plain-flip-fb-recreate-interruptible
output:
IGT-Version: 1.5-g1bbb607 (x86_64) (Linux:
3.13.0-rc8_drm-intel-next-queued_5d9544_20140123+ x86_64)
Using monotonic timestamps
Beginning plain-flip-fb-recreate-interruptible on crtc 3, connector 10
  1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780
.........unexpected flip seq 3610, should be >= 3611
Subtest plain-flip-fb-recreate-interruptible: FAIL

Reproduce steps:
-------------------------
1.  ./kms_flip --run-subtest plain-flip-fb-recreate-interruptible

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