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    <head>
      <base href="https://bugs.freedesktop.org/">
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - GPU hang with Linux-4.18-rc5"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=107329">107329</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>GPU hang with Linux-4.18-rc5
          </td>
        </tr>

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

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

        <tr>
          <th>Reporter</th>
          <td>udo@hypervisor.org
          </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=140764" name="attach_140764" title="Full dmesg output">attachment 140764</a> <a href="attachment.cgi?id=140764&action=edit" title="Full dmesg output">[details]</a></span>
Full dmesg output

With Linux-4.18-rc5 and an Intel BDW GPU, there is a GPU crash at kernel boot
time as follows:

[    0.349074] [drm] VT-d active for gfx access
[    0.349078] [drm] Replacing VGA console driver
[    0.360104] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    0.360108] [drm] Driver supports precise vblank timestamp query.
[    0.360132] i915 0000:00:02.0: vgaarb: changed VGA decodes:
olddecodes=io+mem,decodes=io+mem:owns=io+mem
[    1.312040] tsc: Refined TSC clocksource calibration: 2593.991 MHz
[    1.312049] clocksource: tsc: mask: 0xffffffffffffffff max_cycles:
0x25640fc6114, max_idle_ns: 440795275253 ns
[    1.312069] clocksource: Switched to clocksource tsc
[    4.833977] [drm] GPU HANG: ecode 8:0:0xfffffffe, reason: hang on rcs0,
bcs0, vcs0, vecs0, action: reset
[    4.833983] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[    4.833985] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[    4.833988] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[    4.833991] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[    4.833993] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[    4.834008] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0, bcs0, vcs0,
vecs0
[    4.834035] i915 0000:00:02.0: Resetting bcs0 for hang on rcs0, bcs0, vcs0,
vecs0
[    4.834053] i915 0000:00:02.0: Resetting vcs0 for hang on rcs0, bcs0, vcs0,
vecs0
[    4.834073] i915 0000:00:02.0: Resetting vecs0 for hang on rcs0, bcs0, vcs0,
vecs0
[   10.848340] i915 0000:00:02.0: Resetting chip for hang on rcs0, bcs0, vcs0,
vecs0
[   10.848362] i915 0000:00:02.0: GPU recovery failed
[   10.848679] [drm] Initialized i915 1.6.0 20180514 for 0000:00:02.0 on minor
0</pre>
        </div>
      </p>


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