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<base href="https://bugs.freedesktop.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [APL] GPU Hang during transcoding video"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99942">99942</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[APL] GPU Hang during transcoding video
</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>major
</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>edwardtseng@qnap.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=129895" name="attach_129895" title="dump from /sys/class/drm/card0/error">attachment 129895</a> <a href="attachment.cgi?id=129895&action=edit" title="dump from /sys/class/drm/card0/error">[details]</a></span>
dump from /sys/class/drm/card0/error
Hi:
While transcoding HEVC 10bit video to H264, the GPU may hang there.
It can recover from the status only if the device reboots.
The Kernel message is as follow:
[ 973.709462] [drm] GPU HANG: ecode 9:4:0xacdfbffd, in ffmpeg [6992], reason:
Hang on video enhancement ring, action: reset
[ 973.720436] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[ 973.729630] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[ 973.738477] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[ 973.748085] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[ 973.757000] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[ 973.764295] drm/i915: Resetting chip after gpu hang
[ 973.769821] [drm] GuC firmware load skipped
[ 983.766780] [drm:i915_gem_wait_for_error.part.38] *ERROR* Timed out waiting
for the gpu reset to complete
[ 993.780258] [drm:i915_gem_wait_for_error.part.38] *ERROR* Timed out waiting
for the gpu reset to complete
[ 1003.792770] [drm:i915_gem_wait_for_error.part.38] *ERROR* Timed out waiting
for the gpu reset to complete
[ 1013.805246] [drm:i915_gem_wait_for_error.part.38] *ERROR* Timed out waiting
for the gpu reset to complete
[ 1023.817750] [drm:i915_gem_wait_for_error.part.38] *ERROR* Timed out waiting
for the gpu reset to complete
[ 1024.719067] [drm:i915_gem_wait_for_error.part.38] *ERROR* Timed out waiting
for the gpu reset to complete
[ 1033.830242] [drm:i915_gem_wait_for_error.part.38] *ERROR* Timed out waiting
for the gpu reset to complete
[ 1034.731572] [drm:i915_gem_wait_for_error.part.38] *ERROR* Timed out waiting
for the gpu reset to complete
[ 1043.843737] [drm:i915_gem_wait_for_error.part.38] *ERROR* Timed out waiting
for the gpu reset to complete
dump from /sys/class/drm/card0/error:
GPU HANG: ecode 9:4:0xacdfbffd, in ffmpeg [6992], reason: Hang on video
enhancement ring, action: reset
Time: 1487838143 s 4506 us
Kernel: 4.2.8
Active process (on ring vebox): ffmpeg [6992]
Reset count: 0
Suspend count: 0
PCI ID: 0x5a85
PCI Revision: 0x0b
PCI Subsystem: 8086:2112
IOMMU enabled?: 0
DMC loaded: yes
DMC fw version: 1.7
EIR: 0x00000000
IER: 0x08000000
GTIER gt 0: 0x01010101
GTIER gt 1: 0x01010101
GTIER gt 2: 0x00000070
GTIER gt 3: 0x00000101
PGTBL_ER: 0x00000000
FORCEWAKE: 0xffff0001
DERRMR: 0x2077efef
CCID: 0x00000000
Missed interrupts: 0x00000000
CPU: Intel(R) Celeron(R) CPU J3455 @ 1.50GHz
Git src tag: drm-intel-testing-2016-07-25
Please advise.
Thank you!
Cheers,
Edward Tseng</pre>
</div>
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