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      <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 - [swr] piglit ext_transform_feedback-immediate-reuse-uniform-buffer has a ~5% pass rate"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=103762">103762</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[swr] piglit ext_transform_feedback-immediate-reuse-uniform-buffer has a ~5% pass rate
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>17.2
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

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

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

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

        <tr>
          <th>Component</th>
          <td>Drivers/Gallium/swr
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>agomez@igalia.com
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>mesa-dev@lists.freedesktop.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>When running the complete "all" profile in piglit against mesa's swr driver,
ext_transform_feedback-immediate-reuse-uniform-buffer most of the time fails,
but not always.

It seems its pass rate is ~5%.

AFAIK, this is not new for 17.2.x not a recent regression.

A typical piglit report is as follows, although varies from failed run to run:


Detail      |   Value
------------+---------------
Returncode  |   1
------------+---------------
Time        |   0:00:00.211612
------------+---------------
Stdout      | Probe color at (224,0)
            |   Expected: 223 31 223
            |   Observed: 0 0 0
            | Probe color at (240,0)
            |   Expected: 239 15 239
            |   Observed: 0 0 0
------------+---------------
Stderr      | WR detected AVX2 
            | vert shader  0x7f492c287000
            | frag shader  0x7f492c285000
            | so shader    0x7f492c283000
            | fetch shader 0x7f492c281000
            | fetch shader 0x7f492c27f000
            | SWR destroy screen!
------------+---------------
Environment | PIGLIT_PLATFORM="mixed_glx_egl"
PIGLIT_SOURCE_DIR="/home/local/piglit"
------------+---------------
Command     |
/home/local/piglit/bin/ext_transform_feedback-immediate-reuse-uniform-buffer
-auto -fbo
------------+---------------
dmesg       |
----------------------------

Environment is an Ubuntu Xenial with custom LLVM packages installed and locally
compiled mesa and mesa dependencies. If needed, I can provide a docker image
with which to test.</pre>
        </div>
      </p>


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