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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 - [i915] GPU hang when running UE4Editor"
href="https://bugs.freedesktop.org/show_bug.cgi?id=110228">110228</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[i915] GPU hang when running UE4Editor
</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>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>koxu1996+bugs.freedesktop.org@gmail.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=143761" name="attach_143761" title="/sys/class/drm/card0/error">attachment 143761</a> <a href="attachment.cgi?id=143761&action=edit" title="/sys/class/drm/card0/error">[details]</a></span>
/sys/class/drm/card0/error
# Bug description
Kernel is freezing completely whenever I open "Unreal Engine 4" project - even
SysRq keys don't work. However with netconsole I catched some error logs
related to GPU:
~~~
[ 381.112949] [drm:drm_ioctl [drm]] pid=775, dev=0xe200, auth=1, I915_GEM_MMAP
[ 381.113119] [drm:drm_ioctl [drm]] pid=775, dev=0xe200, auth=1,
I915_GEM_EXECBUFFER2_WR
[ 381.113146] [drm:drm_ioctl [drm]] pid=775, dev=0xe200, auth=1,
I915_GEM_THROTTLE
...
[ 387.161861] [drm] GPU HANG: ecode 9:0:0x8ed9fff2, in UE4Editor [3127],
reason: hang on rcs0, action: reset
[ 387.161866] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[ 387.161868] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[ 387.161870] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[ 387.161871] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[ 387.161873] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[ 387.162881] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
...
[ 387.164405] i915 0000:00:02.0: Resetting chip for hang on rcs0
~~~
Due to freeze I was able to obtain part of /sys/class/drm/card0/error which I
am attaching along with dmesg output.
# System environment
-- chipset: Z370
-- system architecture: x86_64
-- xf86-video-intel: 1:2.99.917+863+g6afed33b-1
-- xorg-server: 1.20.4-1
-- mesa: 19.0.0-1
-- libdrm: 2.4.97-1
-- kernel: 5.0.3.arch1-1
-- Linux distribution: Arch Linux
-- Machine or mobo model: Z370 SLI PLUS
-- Display connector: DisplayPort</pre>
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