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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 - i915 4.11.0-rc1 circular locking dependency detected, switcheroo-cont/776 is trying to acquire lock"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=100143">100143</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>i915 4.11.0-rc1 circular locking dependency detected, switcheroo-cont/776 is trying to acquire lock
          </td>
        </tr>

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

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

        <tr>
          <th>Assignee</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>bugzilla@colorremedies.com
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=130151" name="attach_130151" title="journal konly 4.11.0-rc1+debug drm.debug=0x1e">attachment 130151</a> <a href="attachment.cgi?id=130151&action=edit" title="journal konly 4.11.0-rc1+debug drm.debug=0x1e">[details]</a></span>
journal konly 4.11.0-rc1+debug drm.debug=0x1e

During boot, an INFO message pops up shortly after switcheroo-control.service
is started.


BOOT_IMAGE=/vmlinuz-4.11.0-0.rc1.git0.1.fc26.x86_64+debug
root=UUID=15910530-9840-49af-b948-34eb9599442e ro rootflags=subvol=root00
elevator=deadline drm.debug=0x1e enforcing=0

[    7.670365] localhost.localdomain kernel: snd_hda_intel 0000:01:00.1:
Disabling via vga_switcheroo
[    7.673522] localhost.localdomain kernel: 
[    7.673522] localhost.localdomain kernel:
======================================================
[    7.673523] localhost.localdomain kernel: [ INFO: possible circular locking
dependency detected ]
[    7.673524] localhost.localdomain kernel:
4.11.0-0.rc1.git0.1.fc26.x86_64+debug #1 Not tainted
[    7.673525] localhost.localdomain kernel:
-------------------------------------------------------
[    7.673525] localhost.localdomain kernel: switcheroo-cont/776 is trying to
acquire lock:
[    7.673526] localhost.localdomain kernel:  (console_lock){+.+.+.}, at:
[<ffffffffba631389>] vga_switchto_stage2+0x99/0x130
[    7.673532] localhost.localdomain kernel: 
                                             but task is already holding lock:
[    7.673532] localhost.localdomain kernel:  (vgasr_mutex){+.+.+.}, at:
[<ffffffffba631a4a>] vga_switcheroo_debugfs_write+0x8a/0x3f0
[    7.673535] localhost.localdomain kernel: 
                                             which lock already depends on the
new lock.</pre>
        </div>
      </p>


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