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    <head>
      <base href="https://bugs.freedesktop.org/">
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [llvmpipe] piglit arb_uniform_buffer_object-rendering-dsa regression"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=96517">96517</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[llvmpipe] piglit arb_uniform_buffer_object-rendering-dsa regression
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Mesa
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>git
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86-64 (AMD64)
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux (All)
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Keywords</th>
          <td>bisected, regression
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Mesa core
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>mesa-dev@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>vlee@freedesktop.org
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>mesa-dev@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>imirkin@alum.mit.edu, prefect_@gmx.net
          </td>
        </tr></table>
      <p>
        <div>
        <pre>mesa: 4825264f75c83576f251290547f121f066b46a70 (master 12.1.0-devel)


$ ./bin/arb_uniform_buffer_object-rendering-dsa -auto
GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT = 16
UBO ub_pos_size: index = 1, size = 16
UBO ub_color: index = 2, size = 32
UBO ub_rot: index = 0, size = 16
Probe color at (120,40)
  Expected: 0.000000 1.000000 0.000000 0.250000
  Observed: 1.000000 0.000000 0.000000 0.501961
Probe color at (40,120)
  Expected: 0.000000 0.000000 1.000000 0.200000
  Observed: 1.000000 0.000000 0.000000 0.501961
Probe color at (120,120)
  Expected: 1.000000 1.000000 1.000000 1.000000
  Observed: 1.000000 0.000000 0.000000 0.501961
PIGLIT: {"result": "fail" }


6e6fd911da8a1d9cd62fe0a8a4cc0fb7bdccfe02 is the first bad commit
commit 6e6fd911da8a1d9cd62fe0a8a4cc0fb7bdccfe02
Author: Ilia Mirkin <<a href="mailto:imirkin@alum.mit.edu">imirkin@alum.mit.edu</a>>
Date:   Sat Jun 4 13:26:46 2016 -0400

    st/mesa: use buffer usage history to set dirty flags for revalidation

    We were previously unconditionally doing this for arrays and ubo's, and
    ignoring texture/storage/atomic buffers. Instead use the usage history
    to determine which atoms need to be revalidated.

    Signed-off-by: Ilia Mirkin <<a href="mailto:imirkin@alum.mit.edu">imirkin@alum.mit.edu</a>>
    Reviewed-by: Nicolai Hähnle <<a href="mailto:nicolai.haehnle@amd.com">nicolai.haehnle@amd.com</a>>
    Cc: "12.0" <<a href="mailto:mesa-stable@lists.freedesktop.org">mesa-stable@lists.freedesktop.org</a>>

:040000 040000 8376e8592f88901d5100ed9cea8ee9d38162bbca
09bc7466f259ab6c0094f1368660f6b9ef25c481 M      src
bisect run success</pre>
        </div>
      </p>


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