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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [bisected] r600g, can't launch Gnome Shell and KDE since mesa updated to 5de41575a127eb8a6a0fe5c71a73b372f9b89f53"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=65193">65193</a>
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>dri-devel@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[bisected] r600g, can't launch Gnome Shell and KDE since mesa updated to 5de41575a127eb8a6a0fe5c71a73b372f9b89f53
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>critical
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>alexandre.f.demers@gmail.com
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>All
          </td>
        </tr>

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

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

        <tr>
          <th>Component</th>
          <td>Drivers/Gallium/r600
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Mesa
          </td>
        </tr></table>
      <p>
        <div>
        <pre>I haven't been able to log in Gnome Shell or KDE lately since I updated mesa
from git. Using XFCE and doing some tests, I've found out glxgears returns an
assertion error when launch. glxgears fails with the following error:
sb/sb_expr.cpp:455:fold_alu_op2: Assertion `v0 && v1 && n.dst[0]' failed.
line 6: 15521 Trace/breakpoint trap   (core dumped) $1

Bisecting ended up point to culprit commit:
commit 5de41575a127eb8a6a0fe5c71a73b372f9b89f53
Author: Vadim Girlin <<a href="mailto:vadimgirlin@gmail.com">vadimgirlin@gmail.com</a>>
Date:   Mon May 27 14:23:47 2013 +0400

    r600g/sb: improve folding for SETcc

    Signed-off-by: Vadim Girlin <<a href="mailto:vadimgirlin@gmail.com">vadimgirlin@gmail.com</a>>

:040000 040000 96a6fd8851d84f62896ecfba6c4a7df5a7963325
ade9a1e6d7fd56ed8cf413a2138c38011f1b9827 M    src


Using latest drm, ddx from git on a Radeon HD6950 Cayman.</pre>
        </div>
      </p>
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