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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [NVD9] Hangs under load with ![ PFIFO][0000:01:00.0] unhandled status 0x00800000"
href="https://bugs.freedesktop.org/show_bug.cgi?id=71659">71659</a>
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<th>Assignee</th>
<td>nouveau@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[NVD9] Hangs under load with ![ PFIFO][0000:01:00.0] unhandled status 0x00800000
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>xorg-team@lists.x.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
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<th>OS</th>
<td>Linux (All)
</td>
</tr>
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<th>Reporter</th>
<td>R.Palmer@bham.ac.uk
</td>
</tr>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Version</th>
<td>git
</td>
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<th>Component</th>
<td>Driver/nouveau
</td>
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<th>Product</th>
<td>xorg
</td>
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<p>
<div>
<pre>With the Nouveau driver selected, my NVS 4200M/Ubuntu 13.10 system frequently
hangs when under heavy graphics load (flightgear usually triggers this within a
few minutes) and/or on battery power. This does not happen with the nvidia-319
binary driver.
The mouse pointer continues to move at first, but often freezes later; the
keyboard LEDs do not react. Sounds already playing continue until finished,
but no new ones start (i.e. applications are frozen). Alt+SysRq works.
The kernel log always has the error
nouveau ![ PFIFO][0000:01:00.0] unhandled status 0x00800000
usually preceded by several instances of the warning
nouveau W[ PFIFO][0000:01:00.0] INTR 0x01000000: 0x00000005
and followed by a wide range of other errors.
This happens with both the default (3.11.0) kernel (Ubuntu bug
<a href="https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1243557">https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1243557</a>
) and the latest git kernel, with the default userspace (libdrm-nouveau
2.4.46/xserver-xorg-video-nouveau 1.0.9/mesa 9.2.1); the attached logs are with
the latter (crashes at Nov 15 18:05 and 18:42 in the kernel log, the Xorg log
is from the second of these).
With the latest git userspace (xorg/proto/dri3proto, mesa/drm, xcb/libxcb,
xorg/lib/libxshmfence, mesa/mesa, xorg/proto/presentproto, xcb/proto,
nouveau/xf86-video-nouveau), the system hangs on boot (at a correctly displayed
graphical splash screen), with Alt+SysRq not working and nothing recognisable
as an error in the logs. I suspect this is due to an incompatible combination
of Ubuntu and latest-git (the recommended mesa/drm, nouveau/xf86-video-nouveau,
mesa/mesa wouldn't compile on its own, as it needs dri3 which isn't in Ubuntu
yet).</pre>
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</p>
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