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<base href="https://bugs.freedesktop.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BDW] igt@kms_busy@extended-pageflip-hang-newfb-default-A hard hang"
href="https://bugs.freedesktop.org/show_bug.cgi?id=101231">101231</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[BDW] igt@kms_busy@extended-pageflip-hang-newfb-default-A hard hang
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>DRI 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/Intel
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>marta.lofstedt@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>./tests/kms_busy --run-subtest extended-pageflip-hang-newfb-default-A
drm-tip:
commit afd6d4ac7d9c06649fe00300dd608bccc189ca22
Author: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
Date: Mon May 29 21:13:32 2017 +0200
drm-tip: 2017y-05m-29d-19h-12m-29s UTC integration manifest
igt:
IGT-Version: 1.18-g00ce341 (x86_64) (Linux: 4.12.0-rc2+ x86_64)
[ 2176.095496] INFO: task kworker/1:0:17 blocked for more than 120 seconds.
[ 2176.095502] Tainted: G W 4.12.0-rc2+ #5
[ 2176.095504] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[ 2176.095507] kworker/1:0 D 0 17 2 0x00000000
[ 2176.095562] Workqueue: events_long i915_hangcheck_elapsed [i915]
[ 2176.095564] Call Trace:
[ 2176.095571] __schedule+0x3c4/0x820
[ 2176.095574] schedule+0x36/0x80
[ 2176.095577] schedule_preempt_disabled+0xe/0x10
[ 2176.095580] __ww_mutex_lock.isra.6+0x3de/0x6b0
[ 2176.095583] __ww_mutex_lock_slowpath+0x16/0x20
[ 2176.095586] ? __ww_mutex_lock_slowpath+0x16/0x20
[ 2176.095588] ww_mutex_lock+0x37/0x70
[ 2176.095604] modeset_backoff+0x4b/0xc0 [drm]
[ 2176.095616] drm_modeset_backoff+0x10/0x20 [drm]
[ 2176.095649] intel_prepare_reset+0x38/0xe0 [i915]
[ 2176.095670] i915_reset_and_wakeup+0xad/0x190 [i915]
[ 2176.095692] i915_handle_error+0x1df/0x220 [i915]
[ 2176.095695] ? scnprintf+0x49/0x80
[ 2176.095724] hangcheck_declare_hang+0xe2/0x110 [i915]
[ 2176.095753] ? gen6_read32+0x9f/0x1c0 [i915]
[ 2176.095782] i915_hangcheck_elapsed+0x29f/0x2d0 [i915]
[ 2176.095785] process_one_work+0x1e9/0x3f0
[ 2176.095787] worker_thread+0x4b/0x410
[ 2176.095789] kthread+0x109/0x140
[ 2176.095790] ? process_one_work+0x3f0/0x3f0
[ 2176.095793] ? kthread_create_on_node+0x70/0x70
[ 2176.095796] ret_from_fork+0x2c/0x40
[ 2176.095799] NMI backtrace for cpu 0
[ 2176.095801] CPU: 0 PID: 36 Comm: khungtaskd Tainted: G W
4.12.0-rc2+ #5
[ 2176.095802] Hardware name: /NUC5i5RYB, BIOS
RYBDWi35.86A.0249.2015.0529.1640 05/29/2015
[ 2176.095803] Call Trace:
[ 2176.095805] dump_stack+0x63/0x8d
[ 2176.095808] nmi_cpu_backtrace+0x94/0xa0
[ 2176.095811] ? irq_force_complete_move+0x150/0x150
[ 2176.095814] nmi_trigger_cpumask_backtrace+0xff/0x130
[ 2176.095816] arch_trigger_cpumask_backtrace+0x19/0x20
[ 2176.095818] watchdog+0x2d8/0x360
[ 2176.095821] kthread+0x109/0x140
[ 2176.095823] ? reset_hung_task_detector+0x20/0x20
[ 2176.095825] ? kthread_create_on_node+0x70/0x70
[ 2176.095827] ret_from_fork+0x2c/0x40
[ 2176.095830] Sending NMI from CPU 0 to CPUs 1-3:</pre>
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