[Bug 63533] New: [ILK/SNB/IVB Bisected]I-G-T gem_seqno_wrap aborted

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=63533

          Priority: high
            Bug ID: 63533
                CC: yangweix.shui at intel.com
          Assignee: mika.kuoppala at intel.com
           Summary: [ILK/SNB/IVB Bisected]I-G-T gem_seqno_wrap aborted
        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 77969
  --> https://bugs.freedesktop.org/attachment.cgi?id=77969&action=edit
dmesg

System Environment:
--------------------------
Arch:             x86_64
Platform:         ironlake/sandybridge/ivybridge
Kernel: (drm-intel-next-queued)4ab815b56a3886ac01a8e5d031dfa9733650df2d

Bug detailed description:
-------------------------
It aborted on ironlake/sandybridge/ivybridge with drm-intel-next-queued kernel.
It doesn't happen on drm-intel-fixes kernel.

Bisect shows:a7ca33b673ee90b0a93ffdb18449256798f67786 is the first bad commit.
commit a7ca33b673ee90b0a93ffdb18449256798f67786
Author:     Mika Kuoppala <mika.kuoppala at linux.intel.com>
AuthorDate: Thu Apr 11 16:11:28 2013 +0300
Commit:     Daniel Vetter <daniel.vetter at ffwll.ch>
CommitDate: Thu Apr 11 17:26:56 2013 +0200

    tests/gem_seqno_wrap: verify debugfs write with readback

    Make sure that debugfs entry works as expected by reading
    back the sequence number that was written.

    Signed-off-by: Mika Kuoppala <mika.kuoppala at intel.com>
    Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>

# echo $?
134

output:
seqno readback differs rb:0x7ffffff vs w:0x7fffffff
gem_seqno_wrap: gem_seqno_wrap.c:504: preset_run_once: Assertion
`write_seqno(0x7fffffff) == 0' failed.
Aborted (core dumped)

Reproduce steps:
----------------
1. ./gem_seqno_wrap

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20130415/11d8c11f/attachment.html>