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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BAT SKL] igt@kms_flip@basic-flip-vs-modeset: intel_atomic_commit: atomic_WARN(!lret) followed by vblank timeout"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94993">94993</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[BAT SKL] igt@kms_flip@basic-flip-vs-modeset: intel_atomic_commit: atomic_WARN(!lret) followed by vblank timeout
</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>imre.deak@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>Excerpt from
<a href="http://benchsrv.fi.intel.com//archive/results/CI_IGT_test/Patchwork_1927/skl-i7k-2/html/skl-i7k-2@Patchwork_1927@1/igt@kms_flip@basic-flip-vs-modeset.html">http://benchsrv.fi.intel.com//archive/results/CI_IGT_test/Patchwork_1927/skl-i7k-2/html/skl-i7k-2@Patchwork_1927@1/igt@kms_flip@basic-flip-vs-modeset.html</a>:
"""
IGT-Version: 1.14-g7bd2ac6 (x86_64) (Linux: 4.6.0-rc4-CI-Patchwork_1927+
x86_64)
Using monotonic timestamps
Beginning basic-flip-vs-modeset on pipe A, connector HDMI-A-1
1920x1080 60 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x48 148500
basic-flip-vs-modeset on pipe A, connector HDMI-A-1: PASSED
Beginning basic-flip-vs-modeset on pipe B, connector HDMI-A-1
1920x1080 60 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x48 148500
basic-flip-vs-modeset on pipe B, connector HDMI-A-1: PASSED
Beginning basic-flip-vs-modeset on pipe C, connector HDMI-A-1
1920x1080 60 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x48 148500
basic-flip-vs-modeset on pipe C, connector HDMI-A-1: PASSED
Subtest basic-flip-vs-modeset: SUCCESS (203.816s)
"""
dmesg:
"""
[ 550.623934] ------------[ cut here ]------------
[ 550.624013] WARNING: CPU: 3 PID: 6964 at
drivers/gpu/drm/i915/intel_display.c:13529 intel_atomic_commit+0x1274/0x1400
[i915]
[ 550.624018] WARN_ON(!lret)
[ 550.624022] Modules linked in:
[ 550.624027] snd_hda_intel i915 snd_hda_codec_hdmi snd_hda_codec_realtek
snd_hda_codec_generic x86_pkg_temp_thermal intel_powerclamp coretemp
crct10dif_pclmul snd_hda_codec crc32_pclmul ghash_clmulni_intel snd_hwdep
snd_hda_core snd_pcm mei_me mei i2c_hid e1000e ptp pps_core [last unloaded:
i915]
[ 550.624070] CPU: 3 PID: 6964 Comm: kms_flip Tainted: G U W
4.6.0-rc4-CI-Patchwork_1927+ #1
[ 550.624075] Hardware name: System manufacturer System Product
Name/Z170M-PLUS, BIOS 0701 01/13/2016
[ 550.624079] 0000000000000000 ffff88022f03fb28 ffffffff81405e35
ffff88022f03fb78
[ 550.624088] 0000000000000000 ffff88022f03fb68 ffffffff81079c7c
000034d931a45510
[ 550.624095] 0000000000000001 ffff8800bc1ba2a8 0000000000000000
0000000000000000
[ 550.624103] Call Trace:
[ 550.624114] [<ffffffff81405e35>] dump_stack+0x67/0x92
[ 550.624122] [<ffffffff81079c7c>] __warn+0xcc/0xf0
[ 550.624128] [<ffffffff81079cea>] warn_slowpath_fmt+0x4a/0x50
[ 550.624137] [<ffffffff810c2df9>] ? finish_wait+0x59/0x70
[ 550.624198] [<ffffffffa01ed324>] intel_atomic_commit+0x1274/0x1400 [i915]
[ 550.624206] [<ffffffff810c2f60>] ? wait_woken+0x90/0x90
[ 550.624212] [<ffffffff81538b52>] drm_atomic_commit+0x32/0x50
[ 550.624220] [<ffffffff8151565d>] drm_atomic_helper_set_config+0x7d/0xb0
[ 550.624229] [<ffffffff81528e40>] drm_mode_set_config_internal+0x60/0x110
[ 550.624234] [<ffffffff8152c616>] drm_mode_setcrtc+0x186/0x4f0
[ 550.624239] [<ffffffff8151e64d>] drm_ioctl+0x13d/0x590
[ 550.624244] [<ffffffff8152c490>] ? drm_mode_setplane+0x1b0/0x1b0
[ 550.624253] [<ffffffff811da623>] ? __vfs_read+0x23/0xd0
[ 550.624258] [<ffffffff811ee0aa>] do_vfs_ioctl+0x8a/0x670
[ 550.624266] [<ffffffff811f9f3a>] ? __fget_light+0x6a/0x90
[ 550.624271] [<ffffffff811ee6cc>] SyS_ioctl+0x3c/0x70
[ 550.624286] [<ffffffff817d24a9>] entry_SYSCALL_64_fastpath+0x1c/0xac
[ 550.624291] ---[ end trace 42b35cb92446f3c6 ]---
[ 610.695197] ------------[ cut here ]------------
[ 610.695213] WARNING: CPU: 3 PID: 6964 at drivers/gpu/drm/drm_irq.c:1323
drm_wait_one_vblank+0x150/0x1a0
[ 610.695218] vblank wait timed out on crtc 0
[ 610.695221] Modules linked in: snd_hda_intel i915 snd_hda_codec_hdmi
snd_hda_codec_realtek snd_hda_codec_generic x86_pkg_temp_thermal
intel_powerclamp coretemp crct10dif_pclmul snd_hda_codec crc32_pclmul
ghash_clmulni_intel snd_hwdep snd_hda_core snd_pcm mei_me mei i2c_hid e1000e
ptp pps_core [last unloaded: i915]
[ 610.695268] CPU: 3 PID: 6964 Comm: kms_flip Tainted: G U W
4.6.0-rc4-CI-Patchwork_1927+ #1
[ 610.695272] Hardware name: System manufacturer System Product
Name/Z170M-PLUS, BIOS 0701 01/13/2016
[ 610.695276] 0000000000000000 ffff88022f03fa78 ffffffff81405e35
ffff88022f03fac8
[ 610.695285] 0000000000000000 ffff88022f03fab8 ffffffff81079c7c
0000052b31a45510
[ 610.695293] ffff88022ec8c548 0000000000000000 0000000000003c00
ffff880231a45510
[ 610.695302] Call Trace:
[ 610.695311] [<ffffffff81405e35>] dump_stack+0x67/0x92
[ 610.695319] [<ffffffff81079c7c>] __warn+0xcc/0xf0
[ 610.695325] [<ffffffff81079cea>] warn_slowpath_fmt+0x4a/0x50
[ 610.695333] [<ffffffff810c2df9>] ? finish_wait+0x59/0x70
[ 610.695338] [<ffffffff815206b0>] drm_wait_one_vblank+0x150/0x1a0
[ 610.695345] [<ffffffff810c2f60>] ? wait_woken+0x90/0x90
[ 610.695417] [<ffffffffa01ebb9d>] intel_pre_plane_update+0x15d/0x180 [i915]
[ 610.695477] [<ffffffffa01ec422>] intel_atomic_commit+0x372/0x1400 [i915]
[ 610.695487] [<ffffffff81537db9>] ? drm_atomic_get_crtc_state+0x29/0xc0
[ 610.695494] [<ffffffff810c2f60>] ? wait_woken+0x90/0x90
[ 610.695499] [<ffffffff81538b52>] drm_atomic_commit+0x32/0x50
[ 610.695506] [<ffffffff8151565d>] drm_atomic_helper_set_config+0x7d/0xb0
[ 610.695514] [<ffffffff81528e40>] drm_mode_set_config_internal+0x60/0x110
[ 610.695519] [<ffffffff8152c616>] drm_mode_setcrtc+0x186/0x4f0
[ 610.695527] [<ffffffff81195088>] ? __might_fault+0x48/0xa0
[ 610.695532] [<ffffffff8151e64d>] drm_ioctl+0x13d/0x590
[ 610.695537] [<ffffffff8152c490>] ? drm_mode_setplane+0x1b0/0x1b0
[ 610.695545] [<ffffffff811da623>] ? __vfs_read+0x23/0xd0
[ 610.695550] [<ffffffff811ee0aa>] do_vfs_ioctl+0x8a/0x670
[ 610.695558] [<ffffffff811f9f3a>] ? __fget_light+0x6a/0x90
[ 610.695563] [<ffffffff811ee6cc>] SyS_ioctl+0x3c/0x70
[ 610.695571] [<ffffffff817d24a9>] entry_SYSCALL_64_fastpath+0x1c/0xac
[ 610.695577] ---[ end trace 42b35cb92446f3c7 ]---
"""</pre>
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