Excerpt from http://benchsrv.fi.intel.com//archive/results/CI_IGT_test/CI_DRM_1177/skl-i7k-2/html/skl-i7k-2@CI_DRM_1177@1/igt@kms_flip@basic-flip-vs-dpms.html: """ IGT-Version: 1.14-gc89e8db (x86_64) (Linux: 4.6.0-rc1-gfxbench+ x86_64) Using monotonic timestamps Beginning basic-flip-vs-dpms on pipe A, connector HDMI-A-1 1920x1080 60 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x48 148500 basic-flip-vs-dpms on pipe A, connector HDMI-A-1: PASSED Beginning basic-flip-vs-dpms on pipe B, connector HDMI-A-1 1920x1080 60 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x48 148500 basic-flip-vs-dpms on pipe B, connector HDMI-A-1: PASSED Beginning basic-flip-vs-dpms on pipe C, connector HDMI-A-1 1920x1080 60 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x48 148500 basic-flip-vs-dpms on pipe C, connector HDMI-A-1: PASSED Subtest basic-flip-vs-dpms: SUCCESS (161.989s) """ [ 515.621161] ------------[ cut here ]------------ [ 515.621241] WARNING: CPU: 2 PID: 7115 at drivers/gpu/drm/i915/intel_display.c:13451 intel_atomic_commit+0xc5d/0xd30 [i915] [ 515.621246] WARN_ON(!lret) [ 515.621250] Modules linked in: [ 515.621254] 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 crc32_pclmul ghash_clmulni_intel snd_hda_codec snd_hwdep snd_hda_core mei_me snd_pcm mei i2c_hid e1000e ptp pps_core [last unloaded: i915] [ 515.621297] CPU: 2 PID: 7115 Comm: kms_flip Tainted: G U W 4.6.0-rc1-gfxbench+ #1 [ 515.621301] Hardware name: System manufacturer System Product Name/Z170M-PLUS, BIOS 0701 01/13/2016 [ 515.621305] 0000000000000000 ffff88022f873b68 ffffffff81404d25 ffff88022f873bb8 [ 515.621315] 0000000000000000 ffff88022f873ba8 ffffffff81079b7c 0000348b2dd9b740 [ 515.621323] ffff88022f1d5698 0000000000000000 0000000000000004 0000000000000210 [ 515.621331] Call Trace: [ 515.621350] [<ffffffff81404d25>] dump_stack+0x67/0x92 [ 515.621357] [<ffffffff81079b7c>] __warn+0xcc/0xf0 [ 515.621363] [<ffffffff81079bea>] warn_slowpath_fmt+0x4a/0x50 [ 515.621373] [<ffffffff810c2ca9>] ? finish_wait+0x59/0x70 [ 515.621433] [<ffffffffa01ac51d>] intel_atomic_commit+0xc5d/0xd30 [i915] [ 515.621441] [<ffffffff810c2e10>] ? wait_woken+0x90/0x90 [ 515.621451] [<ffffffff81537922>] drm_atomic_commit+0x32/0x50 [ 515.621458] [<ffffffff81512c99>] drm_atomic_helper_connector_dpms+0xe9/0x1a0 [ 515.621464] [<ffffffff8152c5b5>] drm_mode_obj_set_property_ioctl+0x235/0x240 [ 515.621470] [<ffffffff8152c5eb>] drm_mode_connector_property_set_ioctl+0x2b/0x30 [ 515.621474] [<ffffffff8151d47d>] drm_ioctl+0x13d/0x590 [ 515.621480] [<ffffffff8152c5c0>] ? drm_mode_obj_set_property_ioctl+0x240/0x240 [ 515.621488] [<ffffffff811da6a3>] ? __vfs_read+0x23/0xd0 [ 515.621494] [<ffffffff811ee10a>] do_vfs_ioctl+0x8a/0x670 [ 515.621502] [<ffffffff811f9f8a>] ? __fget_light+0x6a/0x90 [ 515.621507] [<ffffffff811ee72c>] SyS_ioctl+0x3c/0x70 [ 515.621514] [<ffffffff817d11e9>] entry_SYSCALL_64_fastpath+0x1c/0xac [ 515.621519] ---[ end trace 7722bec48596a915 ]--- [ 575.692932] ------------[ cut here ]------------ [ 575.692948] WARNING: CPU: 2 PID: 7115 at drivers/gpu/drm/drm_irq.c:1323 drm_wait_one_vblank+0x150/0x1a0 [ 575.692953] vblank wait timed out on crtc 2 [ 575.692956] 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 crc32_pclmul ghash_clmulni_intel snd_hda_codec snd_hwdep snd_hda_core mei_me snd_pcm mei i2c_hid e1000e ptp pps_core [last unloaded: i915] [ 575.693003] CPU: 2 PID: 7115 Comm: kms_flip Tainted: G U W 4.6.0-rc1-gfxbench+ #1 [ 575.693008] Hardware name: System manufacturer System Product Name/Z170M-PLUS, BIOS 0701 01/13/2016 [ 575.693012] 0000000000000000 ffff88022f873ab8 ffffffff81404d25 ffff88022f873b08 [ 575.693021] 0000000000000000 ffff88022f873af8 ffffffff81079b7c 0000052b2dd9b740 [ 575.693029] ffff8800baea22a8 0000000000000002 000000000000139a ffff88022dd9b740 [ 575.693037] Call Trace: [ 575.693047] [<ffffffff81404d25>] dump_stack+0x67/0x92 [ 575.693054] [<ffffffff81079b7c>] __warn+0xcc/0xf0 [ 575.693060] [<ffffffff81079bea>] warn_slowpath_fmt+0x4a/0x50 [ 575.693068] [<ffffffff810c2ca9>] ? finish_wait+0x59/0x70 [ 575.693074] [<ffffffff8151f4e0>] drm_wait_one_vblank+0x150/0x1a0 [ 575.693080] [<ffffffff810c2e10>] ? wait_woken+0x90/0x90 [ 575.693150] [<ffffffffa01ab3ad>] intel_pre_plane_update+0x15d/0x180 [i915] [ 575.693210] [<ffffffffa01abcb9>] intel_atomic_commit+0x3f9/0xd30 [i915] [ 575.693218] [<ffffffff810c2e10>] ? wait_woken+0x90/0x90 [ 575.693227] [<ffffffff81537922>] drm_atomic_commit+0x32/0x50 [ 575.693233] [<ffffffff81512c99>] drm_atomic_helper_connector_dpms+0xe9/0x1a0 [ 575.693239] [<ffffffff8152c5b5>] drm_mode_obj_set_property_ioctl+0x235/0x240 [ 575.693245] [<ffffffff8152c5eb>] drm_mode_connector_property_set_ioctl+0x2b/0x30 [ 575.693250] [<ffffffff8151d47d>] drm_ioctl+0x13d/0x590 [ 575.693255] [<ffffffff8152c5c0>] ? drm_mode_obj_set_property_ioctl+0x240/0x240 [ 575.693263] [<ffffffff811da6a3>] ? __vfs_read+0x23/0xd0 [ 575.693269] [<ffffffff811ee10a>] do_vfs_ioctl+0x8a/0x670 [ 575.693276] [<ffffffff811f9f8a>] ? __fget_light+0x6a/0x90 [ 575.693281] [<ffffffff811ee72c>] SyS_ioctl+0x3c/0x70 [ 575.693289] [<ffffffff817d11e9>] entry_SYSCALL_64_fastpath+0x1c/0xac [ 575.693295] ---[ end trace 7722bec48596a916 ]---
The bug hasn't showed up in recent CI logs. There's been a few changes around the modeset code, so assuming this to be fixed now.
Imre, regression now fixed so lets follow this for a while still until close.
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