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      <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 - Xorg crashes with nouveau on lenovo y50 (nvidia GTX 860M) (freezes with proprietary drivers)"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=106454">106454</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Xorg crashes with nouveau on lenovo y50 (nvidia GTX 860M) (freezes with proprietary drivers)
          </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>major
          </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>abinavpp@gmail.com
          </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=139443" name="attach_139443" title="Xorg log file">attachment 139443</a> <a href="attachment.cgi?id=139443&action=edit" title="Xorg log file">[details]</a></span>
Xorg log file

I have attached the log file which traces the segmentation fault.

$ dmesg | grep nouv
[   12.036804] nouveau 0000:01:00.0: enabling device (0006 -> 0007)
[   12.038563] nouveau 0000:01:00.0: NVIDIA GM107 (117120a2)
[   12.072130] nouveau 0000:01:00.0: bios: version 82.07.34.00.08
[   12.178128] nouveau 0000:01:00.0: fb: 4096 MiB GDDR5
[   12.178143] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 022554
[ IBUS ]
[   12.179573] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 10ac08
[ IBUS ]
[   12.233709] nouveau 0000:01:00.0: DRM: VRAM: 4096 MiB
[   12.233710] nouveau 0000:01:00.0: DRM: GART: 1048576 MiB
[   12.233721] nouveau 0000:01:00.0: DRM: Pointer to TMDS table invalid
[   12.233722] nouveau 0000:01:00.0: DRM: DCB version 4.0
[   12.360797] nouveau 0000:01:00.0: DRM: MM: using COPY for buffer copies
[   12.360804] [drm] Initialized nouveau 1.3.1 20120801 for 0000:01:00.0 on
minor 1

$ sudo lspci -v | grep -A19 3D
01:00.0 3D controller: NVIDIA Corporation GM107M [GeForce GTX 860M] (rev a2)
        Subsystem: Lenovo GM107M [GeForce GTX 860M]
        Flags: bus master, fast devsel, latency 0, IRQ 32
        Memory at d0000000 (32-bit, non-prefetchable) [size=16M]
        Memory at a0000000 (64-bit, prefetchable) [size=256M]
        Memory at b0000000 (64-bit, prefetchable) [size=32M]
        I/O ports at 4000 [size=128]
        Expansion ROM at b2000000 [disabled] [size=512K]
        Capabilities: [60] Power Management version 3
        Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [78] Express Endpoint, MSI 00
        Capabilities: [100] Virtual Channel
        Capabilities: [250] Latency Tolerance Reporting
        Capabilities: [258] L1 PM Substates
        Capabilities: [128] Power Budgeting <?>
        Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024
<?>
        Capabilities: [900] #19
        Kernel driver in use: nouveau
        Kernel modules: nouveau</pre>
        </div>
      </p>


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