[Bug 57825] New: [HSW regression] I-G-T/gem_ringfill fail

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=57825

          Priority: medium
            Bug ID: 57825
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: [HSW regression] I-G-T/gem_ringfill fail
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: major
    Classification: Unclassified
                OS: All
          Reporter: yangweix.shui at intel.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

Created attachment 70947
  --> https://bugs.freedesktop.org/attachment.cgi?id=70947&action=edit
gem_ringfill failed dmesg

Environment:
------------------------------
The Linux Kernel, the operating system core itself
Kernel: (drm-intel-next-queued)42dcedd4f2e715dc0313e359c8288e6397843fff
Some additional commit info:
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Thu Nov 15 11:32:30 2012 +0000


Console print:
------------------------------
filling blt ring: 100%
verifying
filling render ring: 100%
verifying
render: copy #0 at 0,0 failed: read 0x00d00000
render: copy #1 at 1,0 failed: read 0x00d00001
render: copy #2 at 2,0 failed: read 0x00d00002
render: copy #3 at 3,0 failed: read 0x00d00003
render: copy #4 at 4,0 failed: read 0x00d00004
render: copy #5 at 5,0 failed: read 0x00d00005
render: copy #6 at 6,0 failed: read 0x00d00006
render: copy #7 at 7,0 failed: read 0x00d00007
render: copy #8 at 8,0 failed: read 0x00d00008


Description:
------------------------------
This issue caused by I-G-T, not the kernel. It's like gem_ringfill.c add some
function to verify the case, make it failed.


Process:
------------------------------
1. git pull

2. git log gem_ringfill.c

3. ./gem_ringfill.c

Result:
------------------------------
latest commit: 64f669f7a94d459437a4dd47142ef2bb9870c5e ---> failed

the second commit: ca2851f827d5f60283dc8c202006a2f5095c738 ---> succeed

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