<html>
<head>
<base href="https://bugs.freedesktop.org/">
</head>
<body>
<p>
<div>
<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BAT BYT] Sporadic failure from igt/gem_exec_flush@basic-batch-kernel-default-cmd"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95372#c6">Comment # 6</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [BAT BYT] Sporadic failure from igt/gem_exec_flush@basic-batch-kernel-default-cmd"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95372">bug 95372</a>
from <span class="vcard"><a class="email" href="mailto:david.s.gordon@intel.com" title="david.s.gordon@intel.com">david.s.gordon@intel.com</a>
</span></b>
<pre>The second of the dmesg logs that Daniela posted contains the line:
[ 313.349534] [drm:i915_parse_cmds] CMD: Command length exceeds batch length:
0x7FDEE770 length=114 batchlen=4
I can't see anywhere in the i-g-t tests that submits such a batch; firstly, the
length is not a multiple of 8, whereas we normally pad them to an even DWord,
and secondly, that hex number doesn't appear to be a valid instruction.
Is the parser perhaps picking up undefined data? That would explain why we see
these failures only on BYT, and only intermittently.
.Dave.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the assignee for the bug.</li>
<li>You are on the CC list for the bug.</li>
<li>You are the QA Contact for the bug.</li>
</ul>
</body>
</html>