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<base href="https://bugs.freedesktop.org/" />
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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 --- - nouveau E[ DRM] fail ttm_validate"
href="https://bugs.freedesktop.org/show_bug.cgi?id=59069">59069</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>nouveau@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>nouveau E[ DRM] fail ttm_validate
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>xorg-team@lists.x.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>major
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>kees.bakker@xs4all.nl
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86 (IA32)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>Driver/nouveau
</td>
</tr>
<tr>
<th>Product</th>
<td>xorg
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=72569" name="attach_72569" title="/var/log/kern.log">attachment 72569</a> <a href="attachment.cgi?id=72569&action=edit" title="/var/log/kern.log">[details]</a></span>
/var/log/kern.log
After upgrading from Ubuntu precise to quantal there are lots of messages like
these
(attachment has /var/log/kern.log of the time when that happened)
Jan 4 12:18:12 koli kernel: [ 3705.970720] nouveau E[ DRM] fail
ttm_validate
Jan 4 12:18:12 koli kernel: [ 3705.970726] nouveau E[ DRM] validate
vram_list
Jan 4 12:18:12 koli kernel: [ 3705.970760] nouveau E[ DRM] validate: -12
and there is graphics corruption. After a while it gets really bad so that I
have to stop X. After restarting
X the graphics adapter is still unusable, graphics remain distorted.
By that time the following messages can be seen in /var/log/kern.log
Jan 4 15:08:23 koli kernel: [13917.531124] nouveau [ PGRAPH][0000:01:00.0]
ERROR nsource: LIMIT_COLOR nstatus: PROTECTION_FAULT
Jan 4 15:08:23 koli kernel: [13917.531137] nouveau E[ PGRAPH][0000:01:00.0]
ch 3 [0x0013c000] subc 7 class 0x4097 mthd 0x0204 data 0x00180000
Jan 4 15:08:26 koli kernel: [13920.488008] nouveau E[ DRM] reloc wait_idle
failed: -16
Jan 4 15:08:26 koli kernel: [13920.488013] nouveau E[ DRM] reloc apply:
-16
Jan 4 15:08:26 koli kernel: [13920.492005] [sched_delayed] sched: RT
throttling activated
Jan 4 15:08:29 koli kernel: [13923.600790] nouveau E[ DRM] fail
ttm_validate
Jan 4 15:08:29 koli kernel: [13923.600796] nouveau E[ DRM] validate
vram_list
Jan 4 15:08:29 koli kernel: [13923.600803] nouveau E[ DRM] validate: -16
Jan 4 15:08:35 koli kernel: [13929.600009] nouveau E[ DRM] reloc wait_idle
failed: -16
Jan 4 15:08:35 koli kernel: [13929.600014] nouveau E[ DRM] reloc apply:
-16
Jan 4 15:09:42 koli kernel: [13993.332007] nouveau E[ 1701] failed to idle
channel 0xcccc0001
Jan 4 15:09:42 koli kernel: [13996.332006] nouveau E[ 1701] failed to idle
channel 0xcccc0000
Jan 4 15:09:59 koli kernel: [14010.792008] nouveau E[ PGRAPH][0000:01:00.0]
idle timed out with status 0x0be80001
Jan 4 15:10:01 koli kernel: [14013.614181] nouveau E[ PGRAPH][0000:01:00.0]
idle timed out with status 0x0be80001
Jan 4 15:10:03 koli kernel: [14016.824509] [TTM] Failed to expire sync object
before buffer eviction</pre>
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