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<base href="https://bugs.freedesktop.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - failed to idle channel 0xcccc0001 then crash"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90682">90682</a>
</td>
</tr>
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<th>Summary</th>
<td>failed to idle channel 0xcccc0001 then crash
</td>
</tr>
<tr>
<th>Product</th>
<td>xorg
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
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<th>OS</th>
<td>Linux (All)
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>Driver/nouveau
</td>
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<th>Assignee</th>
<td>nouveau@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>thomas@stewarts.org.uk
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>xorg-team@lists.x.org
</td>
</tr></table>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=116084" name="attach_116084" title="dmesg captured with kdump">attachment 116084</a> <a href="attachment.cgi?id=116084&action=edit" title="dmesg captured with kdump">[details]</a></span>
dmesg captured with kdump
Hi,
My Lenovo W540 started crashing when I upgraded from Linux 3.14 to 3.16 in Sept
2014. I continued to use 3.14 and I did nothing till last week when I tried
Linux 4.0 (from sid) which kept crashing soon after logging in to GNOME 3. I
EFI boot to grub and use GRUB_GFXPAYLOAD_LINUX=keep. Then use KMS and Plymouth
till GDM, X.Org and GNOME3. When it crashed the mouse and keyboard no longer
did anything (ie Ctrl-Alt-F1 did not work) and the laptop appeared to drop off
the network.
When I boot with Linux 4.0 and login to GNOME 3, it would crash within minutes,
but sometimes an hour. I manually compiled 3.15, 3.16, 3.17, 3.18, 3.19 and 4.0
which all had various issues: the external monitor resolution was broken on
3.15, 3.16 seemed ok, but 3.17, 3.18, 3.19 and 4.0 all seemed to crash soon
after boot.
I used kdump to capture a dump and dmesg and there was a message about nouveau:
[ 76.792370] nouveau E[ DRM] failed to idle channel 0xcccc0001 [DRM]
Then 60 microseconds later a BUG:
[ 76.792430] BUG: unable to handle kernel paging request at ffff8805660b7ffc
[ 76.792455] IP: [<ffffffffa0406bf3>] evo_wait+0x53/0x120 [nouveau]
After a little googling I found out about the "nouveau.runpm=0" parameter. Once
I added this parameter and rebooted my laptop has worked fine with Linux 4.0.
However I have not tried that parameter in any previous kernels so am unsure
which release this workaround started working.
I'm now happy that I have a working system with working lcd screen brightness
controls and multi-stream transport monitors that work. However I don't want to
kill the laptops battery by permanently disabling the power management. I could
try bisecting, but with so many revisions I'm not sure what to mark good and
bad or if I should use runpm at all.
Anyway here are some Debian package versions and info:
linux-image-4.0.0-1-amd64 4.0.2-1
libdrm-nouveau2 2.4.60-3
libgl1-mesa-glx 10.5.5-1
xserver-xorg-video-nouveau 1:1.0.11-1+b1
$ lspci | grep -i VGA
00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor
Integrated Graphics Controller (rev 06)
01:00.0 VGA compatible controller: NVIDIA Corporation GK106GLM [Quadro K2100M]
(rev a1)
$
Kind Regards
--
Tom</pre>
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