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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 - Tonga boots to terminal with drm-next-4.3, va conflict"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=91708">91708</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Tonga boots to terminal with drm-next-4.3, va conflict
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>DRI
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>XOrg git
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>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>DRM/AMDgpu
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>dri-devel@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>master.homer@gmail.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=117829" name="attach_117829" title="Kernel log when failing to boot normally">attachment 117829</a> <a href="attachment.cgi?id=117829&action=edit" title="Kernel log when failing to boot normally">[details]</a></span>
Kernel log when failing to boot normally

I've been having problems booting when using a self-compiled kernel of the
drm-next-4.3 branch from the agd5f repo. The amdgpu kernel driver complains
that some va (virtual address?) conflicts with another, which makes it boot to
a terminal.
You can see the conflict in the kernel log:
Aug 20 22:29:14 homer-desktop kernel: [    6.762949] amdgpu 0000:01:00.0: bo
ffff880620b34800 va 0x0000100000-0x0000100400 conflict with
0x0000100000-0x0000100400
Aug 20 22:29:14 homer-desktop kernel: [    6.763693] amdgpu 0000:01:00.0: bo
ffff880620b34800 va 0x0000100000-0x0000100400 conflict with
0x0000100000-0x0000100400
Aug 20 22:29:14 homer-desktop kernel: [    6.764357] amdgpu 0000:01:00.0: bo
ffff880620b34800 va 0x0000100000-0x0000100400 conflict with
0x0000100000-0x0000100400
Aug 20 22:29:14 homer-desktop kernel: [    6.765032] amdgpu 0000:01:00.0: bo
ffff880620b34800 va 0x0000100000-0x0000100400 conflict with
0x0000100000-0x0000100400

I do not have these problems when using a self-compiled kernel from the
drm-next-4.2 or drm-fixes-4.2 branch, so something must have changed from 4.2
to 4.3 that causes the conflict.

Using a Radeon R9 285 (TONGA) on Kubuntu vivid with mesa 11 from the oibaf ppa
and a self-compiled xf86-video-amdgpu.</pre>
        </div>
      </p>
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