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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - REGRESSION: Intermittent hang on login kernel 4.10-pre-rc1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99134">99134</a>
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<th>Summary</th>
<td>REGRESSION: Intermittent hang on login kernel 4.10-pre-rc1
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>DRI git
</td>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>major
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>DRM/Intel
</td>
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
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<th>Reporter</th>
<td>gwhite@kupulau.com
</td>
</tr>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
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<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
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<pre>System hard locks intermittently on login. This is as close as I've been able
to get to a backtrace.
Since it is intermittent, I've had no luck getting this bisected.
IF I get past login, everything is fine for the remainder of the session - or
at least, I've never had any issues, and I've had some very extended sessions.
Linux 4.9.0-GTW2+ #123 SMP Sat Dec 17 19:39:34 EST 2016 x86_64 GNU/Linux
Dec 17 19:40:10 ringle kernel: worker_thread+0x4b/0x510
Dec 17 19:40:10 ringle kernel: kthread+0x101/0x140
Dec 17 19:40:10 ringle kernel: ? process_one_work+0x450/0x450
Dec 17 19:40:10 ringle kernel: ? kthread_create_on_node+0x40/0x40
Dec 17 19:40:10 ringle kernel: ret_from_fork+0x2a/0x40
Dec 17 19:40:10 ringle kernel: Code: ff ff ff 74 58 48 8d 7d c0 44 89 ea 4c 89
e6 e8 1d 36 ff ff 48 8b 43 08 48 8d 55 c0 48 89 df 48 8d b0 80 37 00 00 e8 c6
2e fc ff <48> 8b 50 78 48 85 d2 74 04 83 6a 20 01 48 89 c7 e8 41 71 fc ff
Dec 17 19:40:10 ringle kernel: RIP: intel_unpin_fb_obj+0x5a/0xb0 RSP:
ffffc90003483dd8
Dec 17 19:40:10 ringle kernel: CR2: 0000000000000078
Dec 17 19:40:10 ringle kernel: ---[ end trace 54f93fd89be4561f ]---</pre>
</div>
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