<html>
<head>
<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Priority</th>
<td>high
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [PNV]igt/gem_persistent_relocs/forked-interruptible-faulting-reloc-thrash-inactive randomly causes system hang"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76050">76050</a>
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[PNV]igt/gem_persistent_relocs/forked-interruptible-faulting-reloc-thrash-inactive randomly causes system hang
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>major
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>huax.lu@intel.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=95634" name="attach_95634" title="dmesg(error)">attachment 95634</a> <a href="attachment.cgi?id=95634&action=edit" title="dmesg(error)">[details]</a></span>
dmesg(error)
System Environment:
--------------------------
Platform: Pieview
kernel: drm-intel-next-queued/e8e6e6012d68c4967e8f26fdd39ac95c247d4789
Bug detailed description:
---------------------------
It randomly causes system hang on Pinevuew with -nightly or -queued kernel. It
happens 1 in 5 runs.
It also randomly has [drm:i915_reset] *ERROR* Failed to reset chip: -19.
output(hang):
IGT-Version: 1.5-g20087e7 (i686) (Linux:
3.14.0-rc6_drm-intel-next-queued_e8e6e6_20140311+ i686)
dmesg(hang):
[ 48.431468] console [netcon0] enabled
[ 48.431589] netconsole: network logging started
[ 48.437292] console [netcon0] disabled
[ 48.446037] netpoll: netconsole: local port 6665
[ 48.446184] netpoll: netconsole: local IPv4 address 0.0.0.0
[ 48.446343] netpoll: netconsole: interface 'enp2s0'
[ 48.446485] netpoll: netconsole: remote port 6666
[ 48.446622] netpoll: netconsole: remote IPv4 address 10.239.47.171
[ 48.446798] netpoll: netconsole: remote ethernet address 74:d0:2b:95:69:65
[ 48.446985] netpoll: netconsole: local IP 10.239.47.176
[ 48.448644] console [netcon0] enabled
[ 48.448767] netconsole: network logging started
[ 55.945098] [drm:i915_gem_open],
[ 55.945248] [drm:intel_crtc_cursor_set], cursor off
[ 55.945354] [drm:intel_crtc_set_config], [CRTC:3] [NOFB]
[ 55.945474] [drm:intel_set_config_compute_mode_changes], computed changes
for [CRTC:3], mode_changed=0, fb_changed=0
[ 55.945680] [drm:intel_modeset_stage_output_state], [CONNECTOR:5:LVDS-1] to
[CRTC:4]
[ 55.945841] [drm:intel_crtc_cursor_set], cursor off
[ 55.945945] [drm:intel_crtc_set_config], [CRTC:4] [FB:14] #connectors=1 (x
y) (0 0)
[ 55.946151] [drm:intel_set_config_compute_mode_changes], computed changes
for [CRTC:4], mode_changed=0, fb_changed=0
[ 55.949340] [drm:intel_modeset_stage_output_state], [CONNECTOR:5:LVDS-1] to
[CRTC:4]
[ 55.952422] [drm:i915_gem_open],
[ 63.707022] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed...
render ring idle
[ 133.707023] [drm] no progress on render ring
[ 133.716255] [drm] GPU HANG: ecode -1:0x00000000, reason: Ring hung, action:
reset
[ 133.720785] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[ 133.725398] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[ 133.730065] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[ 133.734848] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[ 133.739694] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[ 157.002008] INFO: rcu_sched detected stalls on CPUs/tasks: {} (detected by
1, t=60002 jiffies, g=4000, c=3999, q=54)
[ 157.002008] INFO: Stall ended before state dump start
output(error):
IGT-Version: 1.5-g20087e7 (i686) (Linux:
3.14.0-rc6_drm-intel-next-queued_e8e6e6_20140311+ i686)
Test assertion failure function gem_execbuf, file drmtest.c:581:
Last errno: 5, Input/output error
Failed assertion: ret == 0
Test assertion failure function gem_execbuf, file drmtest.c:581:
Last errno: 5, Input/output error
Failed assertion: ret == 0
Test assertion failure function gem_execbuf, file drmtest.c:581:
Last errno: 5, Input/output error
Failed assertion: ret == 0
Test assertion failure function gem_execbuf, file drmtest.c:581:
Last errno: 5, Input/output error
Failed assertion: ret == 0
Test assertion failure function gem_execbuf, file drmtest.c:581:
Last errno: 5, Input/output error
Failed assertion: ret == 0
Test assertion failure function gem_execbuf, file drmtest.c:581:
Last errno: 22, Invalid argument
Failed assertion: ret == 0
Test assertion failure function gem_execbuf, file drmtest.c:581:
Test assertion failure function gem_execbuf, file drmtest.c:581:
Last errno: 5, Input/output error
Failed assertion: ret == 0
Last errno: 5, Input/output error
Failed assertion: ret == 0
child 0 failed with exit status 99
Subtest forked-interruptible-faulting-reloc-thrash-inactive: FAIL
gem_reloc_vs_gpu: drmtest.c:1296: children_exit_handler: Assertion `ret == 0'
failed.
Aborted (core dumped)
Reproduce steps:
-------------------------
1. ./gem_reloc_vs_gpu --run-subtest
forked-interruptible-faulting-reloc-thrash-inactive</pre>
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