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        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [IGT] igt@gem_sync@preempt-blt Failed assertion !"GPU hung""
   href="https://bugs.freedesktop.org/show_bug.cgi?id=104871">104871</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[IGT] igt@gem_sync@preempt-blt Failed assertion !"GPU hung"
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>DRI git
          </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>critical
          </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>ricardo.o.perez@intel.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=137072" name="attach_137072" title="CFL-dmesg-kernel-logs">attachment 137072</a> <a href="attachment.cgi?id=137072&action=edit" title="CFL-dmesg-kernel-logs">[details]</a></span>
CFL-dmesg-kernel-logs

For CoffeeLake S UDIMM RVP QA system, the following test is failing:

igt@gem_sync@preempt-blt

Running:
IGT-Version: 1.21-g37bd27f (x86_64) (Linux:
4.15.0-drm-intel-qa-ww5-commit-5f9f363+ x86_64)

----------------------------------------------------------------------------

(gem_sync:30182) igt-aux-CRITICAL: Test assertion failure function sig_abort,
file igt_aux.c:482:
(gem_sync:30182) igt-aux-CRITICAL: Failed assertion: !"GPU hung"
Subtest preempt-blt failed.
**** DEBUG ****
(gem_sync:30182) ioctl-wrappers-DEBUG: Test requirement passed:
gem_has_ring(fd, ring)
(gem_sync:30182) igt-debugfs-DEBUG: Opening debugfs directory
'/sys/kernel/debug/dri/0'
(gem_sync:30182) igt-debugfs-DEBUG: Opening debugfs directory
'/sys/kernel/debug/dri/0'
(gem_sync:30182) igt-aux-CRITICAL: Test assertion failure function sig_abort,
file igt_aux.c:482:
(gem_sync:30182) igt-aux-CRITICAL: Failed assertion: !"GPU hung"
(gem_sync:30182) igt-core-INFO: Stack trace:
(gem_sync:30182) igt-core-INFO:   #0 [__igt_fail_assert+0x101]
(gem_sync:30182) igt-core-INFO:   #1 [sig_abort+0x3a]
(gem_sync:30182) igt-core-INFO:   #2 [killpg+0x40]
(gem_sync:30182) igt-core-INFO:   #3 [__wait+0x1e]
(gem_sync:30182) igt-core-INFO:   #4 [igt_waitchildren+0x61]
(gem_sync:30182) igt-core-INFO:   #5 [igt_waitchildren_timeout+0xe]
(gem_sync:30182) igt-core-INFO:   #6 [preempt+0x2c2]
(gem_sync:30182) igt-core-INFO:   #7 [__real_main785+0x551]
(gem_sync:30182) igt-core-INFO:   #8 [main+0x27]
(gem_sync:30182) igt-core-INFO:   #9 [__libc_start_main+0xf1]
(gem_sync:30182) igt-core-INFO:   #10 [_start+0x2a]
(gem_sync:30182) igt-core-INFO:   #11 [<unknown>+0x2a]
****  END  ****</pre>
        </div>
      </p>


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