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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 - [IGT][KBL] gem_exec_nop@headless is falling Failed, assertion: (n_headless) <= (1.0 + 0.1f) * n_display && (n_headless) >= (1.0 - 0.1f) * n_display"
href="https://bugs.freedesktop.org/show_bug.cgi?id=102563">102563</a>
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<th>Summary</th>
<td>[IGT][KBL] gem_exec_nop@headless is falling Failed, assertion: (n_headless) <= (1.0 + 0.1f) * n_display && (n_headless) >= (1.0 - 0.1f) * n_display
</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>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>armando.antoniox.mora.reos@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>Created <span class=""><a href="attachment.cgi?id=134001" name="attach_134001" title="dmesg log">attachment 134001</a> <a href="attachment.cgi?id=134001&action=edit" title="dmesg log">[details]</a></span>
dmesg log
The following test case is falling on KBL with latest configuration
=======================================
Test list
=======================================
igt@gem_exec_nop@headless
======================================
Software
======================================
kernel version : 4.13.0-drm-tip-ww36-commit-59fbfaa+
hostname : gfx-desktop
architecture : x86_64
os version : Ubuntu 16.10
os codename : yakkety
kernel driver : i915
bios revision : 5.12
bios release date : 09/12/2016
hardware acceleration : disabled
swap partition : enabled on (/dev/sda3)
======================================
Graphic drivers
======================================
grep: /opt/X11R7/var/log/Xorg.0.log: No such file or directory
libdrm : 2.4.83
cairo : 1.15.9
intel-gpu-tools (tag) : intel-gpu-tools-1.19-234-g490b386
intel-gpu-tools (commit) : 490b386
======================================
Hardware
======================================
platform : Kabylake-Nuc
motherboard model : MS-B142
motherboard id : MS-B1421
form factor : Desktop
manufacturer : Micro-StarInternationalCo.,Ltd.
cpu family : Core i7
cpu family id : 6
cpu information : Intel(R) Core(TM) i7-7500U CPU @ 2.70GHz
gpu card : Intel Corporation Device 5916 (rev 02) (prog-if 00
[VGA controller])
memory ram : 15.55 GB
max memory ram : 64 GB
cpu thread : 4
cpu core : 2
cpu model : 142
cpu stepping : 9
socket : Other
signature : Type 0, Family 6, Model 142, Stepping 9
hard drive : 111GiB (120GB)
current cd clock frequency : 337500 kHz
maximum cd clock frequency : 675000 kHz
displays connected : DP-1 HDMI-A-2
======================================
Firmware
======================================
dmc fw loaded : yes
dmc version : 1.1
guc fw loaded : SUCCESS
guc version wanted : 9.14
guc version found : 9.14
huc fw loaded : yes
======================================
kernel parameters
======================================
drm.debug=0x1e quiet splash i915.enable_guc_submission=2
i915.enable_guc_loading=2 i915.alpha_support=1
============================================
output sample
============================================
(gem_exec_nop:1434) INFO: Without a display connected (headless): 10.19us
(gem_exec_nop:1434) CRITICAL: Test assertion failure function headless, file
gem_exec_nop.c:185:
(gem_exec_nop:1434) CRITICAL: Failed assertion: (n_headless) <= (1.0 + 0.1f) *
n_display && (n_headless) >= (1.0 - 0.1f) * n_display
(gem_exec_nop:1434) CRITICAL: 'n_headless' != 'n_display' (0.000010 not within
10.000000% tolerance of 0.000003)
(gem_exec_nop:1434) igt-core-INFO: Stack trace:
(gem_exec_nop:1434) igt-core-INFO: #0 [__igt_fail_assert+0x101]
(gem_exec_nop:1434) igt-core-INFO: #1 [__real_main614+0x78d]
(gem_exec_nop:1434) igt-core-INFO: #2 [__libc_csu_init+0x0]
**** END ****
Subtest headless: FAIL (10.546s)</pre>
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