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    <head>
      <base href="https://bugs.freedesktop.org/">
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [NVC0] disp: ERROR 7 [INVALID_HANDLE] 00 [] chid 0 mthd 0088 data f000000"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=96968">96968</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[NVC0] disp: ERROR 7 [INVALID_HANDLE] 00 [] chid 0 mthd 0088 data f000000
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>xorg
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86-64 (AMD64)
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux (All)
          </td>
        </tr>

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

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Driver/nouveau
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>nouveau@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>peter@lekensteyn.nl
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>xorg-team@lists.x.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=125122" name="attach_125122" title="dmesg for "Arch Linux Nouveau" image from 11 July 2016 (4.7.0-rc5-lts+)">attachment 125122</a> <a href="attachment.cgi?id=125122&action=edit" title="dmesg for "Arch Linux Nouveau" image from 11 July 2016 (4.7.0-rc5-lts+)">[details]</a></span>
dmesg for "Arch Linux Nouveau" image from 11 July 2016 (4.7.0-rc5-lts+)

nouveau causes hangs and spits errors like (4.6.3-1-ARCH):
[    3.938340] nouveau 0000:01:00.0: disp: ERROR 7 [INVALID_HANDLE] 00 [] chid
0 mthd 0088 data f0000000
[    3.944183] nouveau 0000:01:00.0: fifo: write fault at 0000001000 engine 04
[BAR1] client 08 [BAR_WRITE] reason 00 [PT_NOT_PRESENT] on channel -1
[001fe7f000 unknown]
[    3.944293] nouveau 0000:01:00.0: fifo: write fault at 0000000000 engine 05
[BAR3] client 08 [BAR_WRITE] reason 02 [PAGE_NOT_PRESENT] on channel -1
[001fe98000 unknown]
[    3.944460] nouveau 0000:01:00.0: fifo: INTR 08000000
[    3.971108] nouveau 0000:01:00.0: fifo: read fault at 0000005000 engine 04
[BAR1] client 07 [BAR_READ] reason 00 [PT_NOT_PRESENT] on channel -1
[001fe7f000 unknown]
[    3.998097] nouveau 0000:01:00.0: fifo: read fault at 0000005000 engine 04
[BAR1] client 07 [BAR_READ] reason 00 [PT_NOT_PRESENT] on channel -1
[001fe7f000 unknown]
[    3.998440] nouveau 0000:01:00.0: DRM: MM: using COPY0 for buffer copies
[    3.998527] nouveau 0000:01:00.0: disp: ERROR 5 [INVALID_STATE] 08 [] chid 0
mthd 0080 data 00000000

On the v4.7-rc5-lts+ kernel it mentions "fifo: fifo engine fault on channel 1,
recovering...", but it blows up somewhere else. I can remember also having
(hang) issues with the kernel included with Arch Linux iso 2016.01.01. Hanging
in the above cases means a slow down during boot, but eventually user input is
possible. (Don't know what happens after that, I just used an older image).

lspci
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GF108M [GeForce GT
425M] [10de:0df0] (rev a1)
Laptop: Clevo B7130

Test image (for reproducibility) was taken from <a href="https://nouveau.pmoreau.org/">https://nouveau.pmoreau.org/</a>
SHA256: 187af03d97c14ac9fed61f621eb659de0bd258f88aaee5dd0934e8ed507252f5</pre>
        </div>
      </p>


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