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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [GM45/ILK/BYT/BDW]igt/gem_concurrent_blit/cpu-overwrite-source causes OOM killer"
href="https://bugs.freedesktop.org/show_bug.cgi?id=72255">72255</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>[GM45/ILK/BYT/BDW]igt/gem_concurrent_blit/cpu-overwrite-source causes OOM killer
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</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>System Environment:
--------------------------
Platform: GM45/ILK/BYT/BDW
kernel: (drm-intel-nightly)2a9f2367690435ba1d3132c92a71300d2dbe90ba
Bug detailed description:
-------------------------
It causes OOM killer on GM45/ILK/BYT/BDW.
Many gem_concurrent_blit subcases have this issue.
output:
Killed
dmesg:
[ 83.425615] Call Trace:
[ 83.425654] [<ffffffff81709bba>] ? dump_stack+0x41/0x51
[ 83.425717] [<ffffffff81705fe3>] ? dump_header.isra.8+0x69/0x194
[ 83.425789] [<ffffffff8106b059>] ? ktime_get_ts+0x49/0xab
[ 83.425854] [<ffffffff812cbcda>] ? ___ratelimit+0xae/0xc8
[ 83.425919] [<ffffffff810a30e9>] ? oom_kill_process+0x7c/0x311
[ 83.425987] [<ffffffff810a2eab>] ? oom_unkillable_task.isra.5+0x6d/0x7e
[ 83.426063] [<ffffffff810a3892>] ? out_of_memory+0x3b2/0x3e5
[ 83.426130] [<ffffffff810a6fdb>] ? __alloc_pages_nodemask+0x666/0x779
[ 83.426206] [<ffffffff810cffbc>] ? alloc_pages_current+0xc5/0xe2
[ 83.426276] [<ffffffff810a2779>] ? filemap_fault+0x25f/0x384
[ 83.426343] [<ffffffff810b7e9b>] ? __do_fault+0xac/0x3c3
[ 83.426417] [<ffffffff810bb538>] ? handle_mm_fault+0x1e7/0x7e4
[ 83.426487] [<ffffffff81711e9e>] ? __do_page_fault+0x422/0x46f
[ 83.426557] [<ffffffff810e94e6>] ? __pollwait+0xcb/0xcb
[ 83.426618] [<ffffffff810e94e6>] ? __pollwait+0xcb/0xcb
[ 83.426680] [<ffffffff8106b059>] ? ktime_get_ts+0x49/0xab
[ 83.426744] [<ffffffff810e96e9>] ? poll_select_set_timeout+0x4e/0x6f
[ 83.426818] [<ffffffff8170f432>] ? page_fault+0x22/0x30
[ 83.426879] Mem-Info:
[ 83.426908] Node 0 DMA per-cpu:
[ 83.426950] CPU 0: hi: 0, btch: 1 usd: 0
[ 83.427004] CPU 1: hi: 0, btch: 1 usd: 0
[ 83.427059] CPU 2: hi: 0, btch: 1 usd: 0
[ 83.427113] CPU 3: hi: 0, btch: 1 usd: 0
[ 83.427167] Node 0 DMA32 per-cpu:
[ 83.427211] CPU 0: hi: 186, btch: 31 usd: 0
[ 83.427266] CPU 1: hi: 186, btch: 31 usd: 0
[ 83.427320] CPU 2: hi: 186, btch: 31 usd: 0
[ 83.427374] CPU 3: hi: 186, btch: 31 usd: 0
[ 83.427440] active_anon:349508 inactive_anon:117402 isolated_anon:0
Reproduce steps:
----------------------------
1. ./gem_concurrent_blit --run-subtest cpu-overwrite-source</pre>
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