[Bug 82643] New: [BDW Bisected]Piglit spec_ARB_clear_texture_arb_clear_texture-multisample fails

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Thu Aug 14 20:03:51 PDT 2014


          Priority: high
            Bug ID: 82643
                CC: idr at freedesktop.org
          Assignee: kenneth at whitecape.org
           Summary: [BDW Bisected]Piglit
        QA Contact: intel-3d-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: huax.lu at intel.com
          Hardware: All
            Status: NEW
           Version: unspecified
         Component: Drivers/DRI/i965
           Product: Mesa

System Environment:
Platform: BDW
Mesa:        (master)c66d928f2c9fa59e162c391fbdd37df969959718
Libva:        (master)3fddb7f937df4e0e15391bd65ae3c7552ea5b3d7
Kernel:   (drm-intel-nightly)da31e7c60be217316278a055dd3f91c33913270f

Bug detailed description:
It fails on BDW with mesa master branch, works well on 10.2 branch.
Bisect shows:c66d928f2c9fa59e162c391fbdd37df969959718 is the first bad commit
commit c66d928f2c9fa59e162c391fbdd37df969959718
Author:     Kenneth Graunke <kenneth at whitecape.org>
AuthorDate: Thu Jul 17 14:33:15 2014 -0700
Commit:     Kenneth Graunke <kenneth at whitecape.org>
CommitDate: Wed Aug 13 21:19:07 2014 -0700

    i965: Enable INTDIV in SIMD16 mode.

    All we need to do is decompose this to two SIMD8 instructions, like we
    do in many other cases.  We even already have code for that.

    I apparently just botched this last time I tried, and it was easy.

    Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
    Reviewed-by: Matt Turner <mattst88 at gmail.com>

Probe color at (8,8)
  Expected: 0.000000 1.000000 0.000000
  Observed: 1.000000 0.000000 0.000000
Probe color at (10,2)
  Expected: 0.000000 0.000000 0.000000
  Observed: 1.000000 0.000000 0.000000
PIGLIT: {"result": "fail" }

Reproduce steps:
1. xinit
2. bin/arb_clear_texture-multisample -fbo -auto

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