[Bug 82446] New: [IVB/HSW Regression]igt/kms_flip subcases flip-vs-expired-vblank and flip-vs-expired-vblank-interruptible fail

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sun Aug 10 22:41:03 PDT 2014


https://bugs.freedesktop.org/show_bug.cgi?id=82446

          Priority: high
            Bug ID: 82446
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: [IVB/HSW Regression]igt/kms_flip subcases
                    flip-vs-expired-vblank and
                    flip-vs-expired-vblank-interruptible fail
        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 104407
  --> https://bugs.freedesktop.org/attachment.cgi?id=104407&action=edit
dmesg

==System Environment==
--------------------------
Regression: Yes.
It only occurs on -nightly branch
On -nihgtly branch(c3b4c0436dffd0a2d25d9583bd6c3e64f5090603) the cases were
another bug 79108

Non-working platforms: IVB HSW

==kernel==
--------------------------
origin/drm-intel-nightly: ee55e72e4941947049780df49f01d320f1b98a4b(fails)
    drm-intel-nightly: 2014y-08m-08d-21h-15m-06s integration manifest
origin/drm-intel-next-queued: fdd508a6419217cce28213f3c9bd27c02a0d4c71(works)
    drm/i915: Call .update_primary_plane in intel_{enable,
disable}_primary_hw_plane()
origin/drm-intel-fixes: be71eabebaf9f142612d34d42292b454e984dcb5(works)
    Revert "drm/i915: Enable semaphores on BDW"
origin/drm-fixes: 1b2c4869d8247f9e202fa8a73777c34adc62d409(works)
    drm/radeon: fix cut and paste issue for hawaii.
origin/drm-next: 7963e9db1b1f842fdc53309baa8714d38e9f5681(works)
    Revert "drm: drop redundant drm_file->is_master"

==Bug detailed description==
igt/kms_flip subcases flip-vs-expired-vblank and
flip-vs-expired-vblank-interruptible fail. It only occurs on -nightly branch.
the result was pass on other branches.

Output:
[root at x-hsw24 tests]# ./kms_flip --run-subtest
flip-vs-expired-vblank-interruptible
IGT-Version: 1.7-ga17f060 (x86_64) (Linux:
3.16.0_drm-intel-nightly_ee55e7_20140811+ x86_64)
Using monotonic timestamps
Beginning flip-vs-expired-vblank-interruptible on crtc 7, connector 18
  1024x768 60 1024 1048 1184 1344 768 771 777 806 0xa 0x40 65000
.Test assertion failure function run_test_step, file kms_flip.c:840:
Failed assertion: timercmp(&reply.ts, &o->flip_state.last_ts, ==)
Last errno: 4, Interrupted system call
Subtest flip-vs-expired-vblank-interruptible: FAIL

==Reproduce steps==
---------------------------- 
1. ./kms_flip --run-subtest flip-vs-expired-vblank-interruptible

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