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Issue 706222 link

Starred by 2 users
Status: Fixed
Owner:
█ dbehr@chromium.org
Last visit > 30 days ago
Closed: Oct 2017
Cc:
bhthompson@google.com
EstimatedDays: ----
NextAction: ----
OS: Chrome
Pri: 1
Type: Bug



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eDP powered off while attempting aux channel communication.

Project Member Reported by alemate@chromium.org, Mar 29 2017 
/var/log/messages has a lot of lines like:

2017-03-28T17:39:03.864619-07:00 WARNING kernel: [72317.679508] ------------[ cut here ]------------
2017-03-28T17:39:03.864631-07:00 WARNING kernel: [72317.679519] WARNING: CPU: 2 PID: 14508 at /mnt/host/source/src/third_party/kernel/v3.14/drivers/gpu/drm/i915/intel_dp.c:337 intel_dp_check_edp+0x58/0xc5()
2017-03-28T17:39:03.864633-07:00 NOTICE kernel: [72317.679528] eDP powered off while attempting aux channel communication.
2017-03-28T17:39:03.864634-07:00 NOTICE kernel: [72317.679533] Modules linked in: uinput ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat snd_soc_sst_bdw_rt5677_mach i2c_dev snd_soc_sst_haswell_pcm snd_soc_sst_dsp memc_x86 x86_pkg_temp_thermal acpi_als industrialio_triggered_buffer snd_hda_codec_hdmi rfcomm snd_soc_sst_acpi snd_soc_rt5677 snd_soc_rl6231 snd_soc_rt5677_spi snd_hda_intel s
2017-03-28T17:39:03.864635-07:00 NOTICE kernel: [72317.679624] CPU: 2 PID: 14508 Comm: DrmThread Tainted: G        W    3.14.0 #1
2017-03-28T17:39:03.864636-07:00 NOTICE kernel: [72317.679630] Hardware name: GOOGLE Samus, BIOS Google_Samus.6300.174.0 04/02/2015
2017-03-28T17:39:03.864637-07:00 NOTICE kernel: [72317.679636]  0000000000000000 000000003282082e ffff8804381fb960 ffffffff88a2348c
2017-03-28T17:39:03.864638-07:00 NOTICE kernel: [72317.679645]  ffff8804381fb9a8 ffff8804381fb998 ffffffff8845d79f ffffffff88776a5b
2017-03-28T17:39:03.864639-07:00 NOTICE kernel: [72317.679654]  ffff8804686c40d8 ffff880467bd0000 0000000000064010 ffff880467bd0000
2017-03-28T17:39:03.864640-07:00 NOTICE kernel: [72317.679662] Call Trace:
2017-03-28T17:39:03.864640-07:00 NOTICE kernel: [72317.679670]  [<ffffffff88a2348c>] dump_stack+0x4d/0x6f
2017-03-28T17:39:03.864641-07:00 NOTICE kernel: [72317.679676]  [<ffffffff8845d79f>] warn_slowpath_common+0x7f/0x98
2017-03-28T17:39:03.864642-07:00 NOTICE kernel: [72317.679683]  [<ffffffff88776a5b>] ? intel_dp_check_edp+0x58/0xc5
2017-03-28T17:39:03.864643-07:00 NOTICE kernel: [72317.679689]  [<ffffffff8845d80f>] warn_slowpath_fmt+0x57/0x73
2017-03-28T17:39:03.864644-07:00 NOTICE kernel: [72317.679696]  [<ffffffff88776a5b>] intel_dp_check_edp+0x58/0xc5
2017-03-28T17:39:03.864645-07:00 NOTICE kernel: [72317.679702]  [<ffffffff88777d12>] intel_dp_aux_ch+0x75/0x560
2017-03-28T17:39:03.864645-07:00 NOTICE kernel: [72317.679710]  [<ffffffff88495785>] ? finish_wait+0x62/0x62
2017-03-28T17:39:03.864646-07:00 NOTICE kernel: [72317.679716]  [<ffffffff8877830a>] intel_dp_aux_transfer+0x10d/0x13d
2017-03-28T17:39:03.864647-07:00 NOTICE kernel: [72317.679722]  [<ffffffff88a279e5>] ? schedule_timeout+0x105/0x13c
2017-03-28T17:39:03.864648-07:00 NOTICE kernel: [72317.679730]  [<ffffffff88717a7b>] drm_dp_dpcd_access+0x87/0x109
2017-03-28T17:39:03.864648-07:00 NOTICE kernel: [72317.679737]  [<ffffffff8871804e>] drm_dp_dpcd_read+0x31/0x57
2017-03-28T17:39:03.864649-07:00 NOTICE kernel: [72317.679743]  [<ffffffff88775a47>] intel_dp_dpcd_read_wake+0x36/0x5d
2017-03-28T17:39:03.864650-07:00 NOTICE kernel: [72317.679750]  [<ffffffff88775e4b>] intel_dp_get_dpcd+0x50/0x253
2017-03-28T17:39:03.864651-07:00 NOTICE kernel: [72317.679757]  [<ffffffff88778917>] intel_dp_detect+0x16b/0x499
2017-03-28T17:39:03.864652-07:00 NOTICE kernel: [72317.679763]  [<ffffffff887187cd>] drm_helper_probe_single_connector_modes+0xc8/0x2df
2017-03-28T17:39:03.864652-07:00 NOTICE kernel: [72317.679772]  [<ffffffff8872bd48>] drm_mode_getconnector+0x112/0x32d
2017-03-28T17:39:03.864653-07:00 NOTICE kernel: [72317.679779]  [<ffffffff88538751>] ? kfree+0x64/0x100
2017-03-28T17:39:03.864654-07:00 NOTICE kernel: [72317.679785]  [<ffffffff8871df46>] drm_ioctl+0x2f2/0x421
2017-03-28T17:39:03.864655-07:00 NOTICE kernel: [72317.679791]  [<ffffffff8872bc36>] ? drm_mode_getcrtc+0xc8/0xc8
2017-03-28T17:39:03.864656-07:00 NOTICE kernel: [72317.679798]  [<ffffffff8861f584>] ? ioctl_has_perm+0xa8/0xed
2017-03-28T17:39:03.864657-07:00 NOTICE kernel: [72317.679805]  [<ffffffff88556e76>] do_vfs_ioctl+0x354/0x416
2017-03-28T17:39:03.864657-07:00 NOTICE kernel: [72317.679811]  [<ffffffff88556f8f>] SyS_ioctl+0x57/0x79
2017-03-28T17:39:03.864658-07:00 NOTICE kernel: [72317.679818]  [<ffffffff88a2bf9f>] tracesys+0xe7/0xec
2017-03-28T17:39:03.864659-07:00 WARNING kernel: [72317.679823] ---[ end trace 75844cdf56bd1f79 ]---
2017-03-28T17:39:03.868619-07:00 WARNING kernel: [72317.683273] ------------[ cut here ]------------
2017-03-28T17:39:03.868632-07:00 WARNING kernel: [72317.683284] WARNING: CPU: 3 PID: 14508 at /mnt/host/source/src/third_party/kernel/v3.14/drivers/gpu/drm/i915/intel_dp.c:337 intel_dp_check_edp+0x58/0xc5()
2017-03-28T17:39:03.868633-07:00 NOTICE kernel: [72317.683293] eDP powered off while attempting aux channel communication.
2017-03-28T17:39:03.868634-07:00 NOTICE kernel: [72317.683298] Modules linked in: uinput ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat snd_soc_sst_bdw_rt5677_mach i2c_dev snd_soc_sst_haswell_pcm snd_soc_sst_dsp memc_x86 x86_pkg_temp_thermal acpi_als industrialio_triggered_buffer snd_hda_codec_hdmi rfcomm snd_soc_sst_acpi snd_soc_rt5677 snd_soc_rl6231 snd_soc_rt5677_spi snd_hda_intel s
2017-03-28T17:39:03.868635-07:00 NOTICE kernel: [72317.683392] CPU: 3 PID: 14508 Comm: DrmThread Tainted: G        W    3.14.0 #1
2017-03-28T17:39:03.868636-07:00 NOTICE kernel: [72317.683398] Hardware name: GOOGLE Samus, BIOS Google_Samus.6300.174.0 04/02/2015
2017-03-28T17:39:03.868637-07:00 NOTICE kernel: [72317.683404]  0000000000000000 000000003282082e ffff8804381fb960 ffffffff88a2348c
2017-03-28T17:39:03.868638-07:00 NOTICE kernel: [72317.683413]  ffff8804381fb9a8 ffff8804381fb998 ffffffff8845d79f ffffffff88776a5b
2017-03-28T17:39:03.868639-07:00 NOTICE kernel: [72317.683422]  ffff8804686c40d8 ffff880467bd0000 0000000000064010 ffff880467bd0000
2017-03-28T17:39:03.868640-07:00 NOTICE kernel: [72317.683431] Call Trace:
2017-03-28T17:39:03.868640-07:00 NOTICE kernel: [72317.683439]  [<ffffffff88a2348c>] dump_stack+0x4d/0x6f
2017-03-28T17:39:03.868641-07:00 NOTICE kernel: [72317.683446]  [<ffffffff8845d79f>] warn_slowpath_common+0x7f/0x98
2017-03-28T17:39:03.868642-07:00 NOTICE kernel: [72317.683453]  [<ffffffff88776a5b>] ? intel_dp_check_edp+0x58/0xc5
2017-03-28T17:39:03.868643-07:00 NOTICE kernel: [72317.683460]  [<ffffffff8845d80f>] warn_slowpath_fmt+0x57/0x73
2017-03-28T17:39:03.868644-07:00 NOTICE kernel: [72317.683467]  [<ffffffff88776a5b>] intel_dp_check_edp+0x58/0xc5
2017-03-28T17:39:03.868645-07:00 NOTICE kernel: [72317.683473]  [<ffffffff88777d12>] intel_dp_aux_ch+0x75/0x560
2017-03-28T17:39:03.868646-07:00 NOTICE kernel: [72317.683481]  [<ffffffff88495785>] ? finish_wait+0x62/0x62
2017-03-28T17:39:03.868647-07:00 NOTICE kernel: [72317.683488]  [<ffffffff8877830a>] intel_dp_aux_transfer+0x10d/0x13d
2017-03-28T17:39:03.868647-07:00 NOTICE kernel: [72317.683495]  [<ffffffff88a279e5>] ? schedule_timeout+0x105/0x13c
2017-03-28T17:39:03.868648-07:00 NOTICE kernel: [72317.683503]  [<ffffffff88717a7b>] drm_dp_dpcd_access+0x87/0x109
2017-03-28T17:39:03.868649-07:00 NOTICE kernel: [72317.683510]  [<ffffffff8871804e>] drm_dp_dpcd_read+0x31/0x57
2017-03-28T17:39:03.868650-07:00 NOTICE kernel: [72317.683518]  [<ffffffff88775a47>] intel_dp_dpcd_read_wake+0x36/0x5d
2017-03-28T17:39:03.868651-07:00 NOTICE kernel: [72317.683525]  [<ffffffff88775e4b>] intel_dp_get_dpcd+0x50/0x253
2017-03-28T17:39:03.868651-07:00 NOTICE kernel: [72317.683532]  [<ffffffff88778917>] intel_dp_detect+0x16b/0x499
2017-03-28T17:39:03.868652-07:00 NOTICE kernel: [72317.683539]  [<ffffffff887187cd>] drm_helper_probe_single_connector_modes+0xc8/0x2df
2017-03-28T17:39:03.868653-07:00 NOTICE kernel: [72317.683547]  [<ffffffff8872bd48>] drm_mode_getconnector+0x112/0x32d
2017-03-28T17:39:03.868654-07:00 NOTICE kernel: [72317.683555]  [<ffffffff88538751>] ? kfree+0x64/0x100
2017-03-28T17:39:03.868655-07:00 NOTICE kernel: [72317.683562]  [<ffffffff8871df46>] drm_ioctl+0x2f2/0x421
2017-03-28T17:39:03.868655-07:00 NOTICE kernel: [72317.683568]  [<ffffffff8872bc36>] ? drm_mode_getcrtc+0xc8/0xc8
2017-03-28T17:39:03.868656-07:00 NOTICE kernel: [72317.683575]  [<ffffffff8861f584>] ? ioctl_has_perm+0xa8/0xed
2017-03-28T17:39:03.868657-07:00 NOTICE kernel: [72317.683582]  [<ffffffff88556e76>] do_vfs_ioctl+0x354/0x416
2017-03-28T17:39:03.868658-07:00 NOTICE kernel: [72317.683589]  [<ffffffff88556f8f>] SyS_ioctl+0x57/0x79
2017-03-28T17:39:03.868659-07:00 NOTICE kernel: [72317.683596]  [<ffffffff88a2bf9f>] tracesys+0xe7/0xec
2017-03-28T17:39:03.868660-07:00 WARNING kernel: [72317.683601] ---[ end trace 75844cdf56bd1f7a ]---
2017-03-28T17:39:03.871591-07:00 WARNING kernel: [72317.687051] ------------[ cut here ]------------
2017-03-28T17:39:03.871603-07:00 WARNING kernel: [72317.687061] WARNING: CPU: 2 PID: 14508 at /mnt/host/source/src/third_party/kernel/v3.14/drivers/gpu/drm/i915/intel_dp.c:337 intel_dp_check_edp+0x58/0xc5()
2017-03-28T17:39:03.871604-07:00 NOTICE kernel: [72317.687070] eDP powered off while attempting aux channel communication.
2017-03-28T17:39:03.872611-07:00 NOTICE kernel: [72317.687075] Modules linked in: uinput ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat snd_soc_sst_bdw_rt5677_mach i2c_dev snd_soc_sst_haswell_pcm snd_soc_sst_dsp memc_x86 x86_pkg_temp_thermal acpi_als industrialio_triggered_buffer snd_hda_codec_hdmi rfcomm snd_soc_sst_acpi snd_soc_rt5677 snd_soc_rl6231 snd_soc_rt5677_spi snd_hda_intel s
2017-03-28T17:39:03.872618-07:00 NOTICE kernel: [72317.687181] CPU: 2 PID: 14508 Comm: DrmThread Tainted: G        W    3.14.0 #1
2017-03-28T17:39:03.872619-07:00 NOTICE kernel: [72317.687186] Hardware name: GOOGLE Samus, BIOS Google_Samus.6300.174.0 04/02/2015
2017-03-28T17:39:03.872620-07:00 NOTICE kernel: [72317.687192]  0000000000000000 000000003282082e ffff8804381fb960 ffffffff88a2348c
2017-03-28T17:39:03.872628-07:00 NOTICE kernel: [72317.687202]  ffff8804381fb9a8 ffff8804381fb998 ffffffff8845d79f ffffffff88776a5b
2017-03-28T17:39:03.872630-07:00 NOTICE kernel: [72317.687210]  ffff8804686c40d8 ffff880467bd0000 0000000000064010 ffff880467bd0000
2017-03-28T17:39:03.872631-07:00 NOTICE kernel: [72317.687220] Call Trace:
2017-03-28T17:39:03.872632-07:00 NOTICE kernel: [72317.687227]  [<ffffffff88a2348c>] dump_stack+0x4d/0x6f
2017-03-28T17:39:03.872633-07:00 NOTICE kernel: [72317.687234]  [<ffffffff8845d79f>] warn_slowpath_common+0x7f/0x98
2017-03-28T17:39:03.872634-07:00 NOTICE kernel: [72317.687241]  [<ffffffff88776a5b>] ? intel_dp_check_edp+0x58/0xc5
2017-03-28T17:39:03.872635-07:00 NOTICE kernel: [72317.687248]  [<ffffffff8845d80f>] warn_slowpath_fmt+0x57/0x73
2017-03-28T17:39:03.872636-07:00 NOTICE kernel: [72317.687254]  [<ffffffff88776a5b>] intel_dp_check_edp+0x58/0xc5
2017-03-28T17:39:03.872637-07:00 NOTICE kernel: [72317.687261]  [<ffffffff88777d12>] intel_dp_aux_ch+0x75/0x560
2017-03-28T17:39:03.872638-07:00 NOTICE kernel: [72317.687270]  [<ffffffff88495785>] ? finish_wait+0x62/0x62
2017-03-28T17:39:03.872639-07:00 NOTICE kernel: [72317.687277]  [<ffffffff8877830a>] intel_dp_aux_transfer+0x10d/0x13d
2017-03-28T17:39:03.872640-07:00 NOTICE kernel: [72317.687283]  [<ffffffff88a279e5>] ? schedule_timeout+0x105/0x13c
2017-03-28T17:39:03.872641-07:00 NOTICE kernel: [72317.687291]  [<ffffffff88717a7b>] drm_dp_dpcd_access+0x87/0x109
2017-03-28T17:39:03.872641-07:00 NOTICE kernel: [72317.687298]  [<ffffffff8871804e>] drm_dp_dpcd_read+0x31/0x57
2017-03-28T17:39:03.872642-07:00 NOTICE kernel: [72317.687305]  [<ffffffff88775a47>] intel_dp_dpcd_read_wake+0x36/0x5d
2017-03-28T17:39:03.872643-07:00 NOTICE kernel: [72317.687312]  [<ffffffff88775e4b>] intel_dp_get_dpcd+0x50/0x253
2017-03-28T17:39:03.872644-07:00 NOTICE kernel: [72317.687319]  [<ffffffff88778917>] intel_dp_detect+0x16b/0x499
2017-03-28T17:39:03.872645-07:00 NOTICE kernel: [72317.687326]  [<ffffffff887187cd>] drm_helper_probe_single_connector_modes+0xc8/0x2df
2017-03-28T17:39:03.872646-07:00 NOTICE kernel: [72317.687334]  [<ffffffff8872bd48>] drm_mode_getconnector+0x112/0x32d
2017-03-28T17:39:03.872647-07:00 NOTICE kernel: [72317.687341]  [<ffffffff88538751>] ? kfree+0x64/0x100
2017-03-28T17:39:03.872648-07:00 NOTICE kernel: [72317.687348]  [<ffffffff8871df46>] drm_ioctl+0x2f2/0x421
2017-03-28T17:39:03.872649-07:00 NOTICE kernel: [72317.687354]  [<ffffffff8872bc36>] ? drm_mode_getcrtc+0xc8/0xc8
2017-03-28T17:39:03.872650-07:00 NOTICE kernel: [72317.687361]  [<ffffffff8861f584>] ? ioctl_has_perm+0xa8/0xed
2017-03-28T17:39:03.872651-07:00 NOTICE kernel: [72317.687368]  [<ffffffff88556e76>] do_vfs_ioctl+0x354/0x416
2017-03-28T17:39:03.872652-07:00 NOTICE kernel: [72317.687375]  [<ffffffff88556f8f>] SyS_ioctl+0x57/0x79
2017-03-28T17:39:03.872653-07:00 NOTICE kernel: [72317.687382]  [<ffffffff88a2bf9f>] tracesys+0xe7/0xec
2017-03-28T17:39:03.872654-07:00 WARNING kernel: [72317.687387] ---[ end trace 75844cdf56bd1f7b ]---
2017-03-28T17:39:03.875631-07:00 WARNING kernel: [72317.690830] ------------[ cut here ]------------
2017-03-28T17:39:03.875640-07:00 WARNING kernel: [72317.690840] WARNING: CPU: 2 PID: 14508 at /mnt/host/source/src/third_party/kernel/v3.14/drivers/gpu/drm/i915/intel_dp.c:337 intel_dp_check_edp+0x58/0xc5()
2017-03-28T17:39:03.875642-07:00 NOTICE kernel: [72317.690849] eDP powered off while attempting aux channel communication.
2017-03-28T17:39:03.875643-07:00 NOTICE kernel: [72317.690854] Modules linked in: uinput ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat snd_soc_sst_bdw_rt5677_mach i2c_dev snd_soc_sst_haswell_pcm snd_soc_sst_dsp memc_x86 x86_pkg_temp_thermal acpi_als industrialio_triggered_buffer snd_hda_codec_hdmi rfcomm snd_soc_sst_acpi snd_soc_rt5677 snd_soc_rl6231 snd_soc_rt5677_spi snd_hda_intel s
2017-03-28T17:39:03.875644-07:00 NOTICE kernel: [72317.690943] CPU: 2 PID: 14508 Comm: DrmThread Tainted: G        W    3.14.0 #1
2017-03-28T17:39:03.875652-07:00 NOTICE kernel: [72317.690948] Hardware name: GOOGLE Samus, BIOS Google_Samus.6300.174.0 04/02/2015
2017-03-28T17:39:03.875653-07:00 NOTICE kernel: [72317.690954]  0000000000000000 000000003282082e ffff8804381fb960 ffffffff88a2348c
2017-03-28T17:39:03.875654-07:00 NOTICE kernel: [72317.690963]  ffff8804381fb9a8 ffff8804381fb998 ffffffff8845d79f ffffffff88776a5b
2017-03-28T17:39:03.875655-07:00 NOTICE kernel: [72317.690971]  ffff8804686c40d8 ffff880467bd0000 0000000000064010 ffff880467bd0000
2017-03-28T17:39:03.875656-07:00 NOTICE kernel: [72317.690980] Call Trace:
2017-03-28T17:39:03.875656-07:00 NOTICE kernel: [72317.690986]  [<ffffffff88a2348c>] dump_stack+0x4d/0x6f
2017-03-28T17:39:03.875657-07:00 NOTICE kernel: [72317.690993]  [<ffffffff8845d79f>] warn_slowpath_common+0x7f/0x98
2017-03-28T17:39:03.875658-07:00 NOTICE kernel: [72317.690999]  [<ffffffff88776a5b>] ? intel_dp_check_edp+0x58/0xc5
2017-03-28T17:39:03.875659-07:00 NOTICE kernel: [72317.691006]  [<ffffffff8845d80f>] warn_slowpath_fmt+0x57/0x73
2017-03-28T17:39:03.875660-07:00 NOTICE kernel: [72317.691012]  [<ffffffff88776a5b>] intel_dp_check_edp+0x58/0xc5
2017-03-28T17:39:03.875661-07:00 NOTICE kernel: [72317.691019]  [<ffffffff88777d12>] intel_dp_aux_ch+0x75/0x560
2017-03-28T17:39:03.875662-07:00 NOTICE kernel: [72317.691026]  [<ffffffff88495785>] ? finish_wait+0x62/0x62
2017-03-28T17:39:03.875662-07:00 NOTICE kernel: [72317.691032]  [<ffffffff8877830a>] intel_dp_aux_transfer+0x10d/0x13d
2017-03-28T17:39:03.875663-07:00 NOTICE kernel: [72317.691039]  [<ffffffff88a279e5>] ? schedule_timeout+0x105/0x13c
2017-03-28T17:39:03.875664-07:00 NOTICE kernel: [72317.691046]  [<ffffffff88717a7b>] drm_dp_dpcd_access+0x87/0x109
2017-03-28T17:39:03.875665-07:00 NOTICE kernel: [72317.691053]  [<ffffffff8871804e>] drm_dp_dpcd_read+0x31/0x57
2017-03-28T17:39:03.875666-07:00 NOTICE kernel: [72317.691059]  [<ffffffff88775a47>] intel_dp_dpcd_read_wake+0x36/0x5d
2017-03-28T17:39:03.875667-07:00 NOTICE kernel: [72317.691066]  [<ffffffff88775e4b>] intel_dp_get_dpcd+0x50/0x253
2017-03-28T17:39:03.875667-07:00 NOTICE kernel: [72317.691073]  [<ffffffff88778917>] intel_dp_detect+0x16b/0x499
2017-03-28T17:39:03.875668-07:00 NOTICE kernel: [72317.691079]  [<ffffffff887187cd>] drm_helper_probe_single_connector_modes+0xc8/0x2df
2017-03-28T17:39:03.875669-07:00 NOTICE kernel: [72317.691087]  [<ffffffff8872bd48>] drm_mode_getconnector+0x112/0x32d
2017-03-28T17:39:03.875670-07:00 NOTICE kernel: [72317.691094]  [<ffffffff88538751>] ? kfree+0x64/0x100
2017-03-28T17:39:03.875671-07:00 NOTICE kernel: [72317.691100]  [<ffffffff8871df46>] drm_ioctl+0x2f2/0x421
2017-03-28T17:39:03.875672-07:00 NOTICE kernel: [72317.691106]  [<ffffffff8872bc36>] ? drm_mode_getcrtc+0xc8/0xc8
2017-03-28T17:39:03.875673-07:00 NOTICE kernel: [72317.691114]  [<ffffffff8861f584>] ? ioctl_has_perm+0xa8/0xed
2017-03-28T17:39:03.875673-07:00 NOTICE kernel: [72317.691128]  [<ffffffff88556e76>] do_vfs_ioctl+0x354/0x416
2017-03-28T17:39:03.875674-07:00 NOTICE kernel: [72317.691134]  [<ffffffff88556f8f>] SyS_ioctl+0x57/0x79
2017-03-28T17:39:03.875676-07:00 NOTICE kernel: [72317.691143]  [<ffffffff88a2bf9f>] tracesys+0xe7/0xec
2017-03-28T17:39:03.875681-07:00 WARNING kernel: [72317.691173] ---[ end trace 75844cdf56bd1f7c ]---

Comment 1 by marc...@chromium.org, Apr 5 2017

Labels: -Pri-3 Pri-1
Status: Started (was: Untriaged)
Ok that's actually a kernel regression and is killing our perf, I'm investigating.

Comment 2 by marc...@chromium.org, Apr 5 2017

Cc: -dbehr@chromium.org
Owner: dbehr@chromium.org
Status: Assigned (was: Started)
98e435760274a4e9502465998a80e01904199f32 is the first bad commit
commit 98e435760274a4e9502465998a80e01904199f32
Author: Dominik Behr <dbehr@chromium.org>
Date:   Tue Feb 14 15:43:30 2017 -0800

    CHROMIUM: drm/i915: do not wake up sink before detecting HPD
    
    There is no need to read DPCD and EDID if there is nothing connected to the
    port. So move waking up sink DPMS after panel lid detect and reading of digital
    port HPD bits so it doesn't try 128 times to turn sink DPMS on and off.
    
    BUG=chromium:687351
    TEST=run power_Resume test with external display connected and disconnected
    
    Change-Id: I18f5457817badc3a9fdf4ac863d39fcdbdf51c70
    Signed-off-by: Dominik Behr <dbehr@chromium.org>
    Reviewed-on: https://chromium-review.googlesource.com/442787
    Reviewed-by: Stéphane Marchesin <marcheu@chromium.org>

:040000 040000 736e4a320907ce46cde7a06affc259f5700e6275 a37eb0435b394a82c4f9d84d23529e1ee68dc8c7 M      drivers
Project Member

Comment 3 by bugdroid1@chromium.org, Apr 6 2017

Labels: merge-merged-chromeos-3.14
The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/third_party/kernel/+/fb53839934118c4fb84aa3cbe3f0aa12ad037733

commit fb53839934118c4fb84aa3cbe3f0aa12ad037733
Author: Dominik Behr <dbehr@chromium.org>
Date: Thu Apr 06 23:01:45 2017

CHROMIUM: drm/i915: do not read DPCD on eDP connector in intel_dp_detect

98e435760274a4e9502465998a80e01904199f32 moved code around that caused
DPCD detect function to be called for eDP connectors. This was previously
skipped because of the early exit from ironlake/g4x_dp_detect in eDP path.
Fix it by not calling intel_dp_dpcd_detect() for eDP.

Also, remove unnecessary curly brace introduced in previous change.

BUG= chromium:706222 
TEST=boot Samus and select browse as guest. There is no long delay.

Change-Id: I5de53724ec3642c30707beefdddf8ab64cefe2e8
Signed-off-by: Dominik Behr <dbehr@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/469156
Reviewed-by: Stéphane Marchesin <marcheu@chromium.org>
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>

[modify] https://crrev.com/fb53839934118c4fb84aa3cbe3f0aa12ad037733/drivers/gpu/drm/i915/intel_dp.c

Comment 4 by dbehr@chromium.org, Apr 24 2017

Labels: Merge-Request-58
Project Member

Comment 5 by sheriffbot@chromium.org, Apr 24 2017

Labels: -Merge-Request-58 Merge-Review-58 Hotlist-Merge-Review
This bug requires manual review: We are only 0 days from stable.
Please contact the milestone owner if you have questions.
Owners: amineer@(Android), cmasso@(iOS), bhthompson@(ChromeOS), govind@(Desktop)

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Comment 6 by bhthompson@google.com, Apr 25 2017

Labels: -Hotlist-Merge-Review -Merge-Review-58 Merge-Approved-58
Project Member

Comment 7 by bugdroid1@chromium.org, Apr 25 2017

Labels: merge-merged-release-R58-9334.B-chromeos-3.14
The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/third_party/kernel/+/6f4f05c0f931483279378aade59875577184e2b9

commit 6f4f05c0f931483279378aade59875577184e2b9
Author: Dominik Behr <dbehr@chromium.org>
Date: Tue Apr 25 22:46:09 2017

CHROMIUM: drm/i915: do not read DPCD on eDP connector in intel_dp_detect

98e435760274a4e9502465998a80e01904199f32 moved code around that caused
DPCD detect function to be called for eDP connectors. This was previously
skipped because of the early exit from ironlake/g4x_dp_detect in eDP path.
Fix it by not calling intel_dp_dpcd_detect() for eDP.

Also, remove unnecessary curly brace introduced in previous change.

BUG= chromium:706222 
TEST=boot Samus and select browse as guest. There is no long delay.

Change-Id: I5de53724ec3642c30707beefdddf8ab64cefe2e8
Signed-off-by: Dominik Behr <dbehr@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/469156
Reviewed-by: Stéphane Marchesin <marcheu@chromium.org>
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
(cherry picked from commit fb53839934118c4fb84aa3cbe3f0aa12ad037733)
Reviewed-on: https://chromium-review.googlesource.com/486239
Reviewed-by: Bernie Thompson <bhthompson@chromium.org>

[modify] https://crrev.com/6f4f05c0f931483279378aade59875577184e2b9/drivers/gpu/drm/i915/intel_dp.c
Project Member

Comment 8 by sheriffbot@chromium.org, May 1 2017

Cc: bhthompson@google.com
This issue has been approved for a merge. Please merge the fix to any appropriate branches as soon as possible!

If all merges have been completed, please remove any remaining Merge-Approved labels from this issue.

Thanks for your time! To disable nags, add the Disable-Nags label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
Project Member

Comment 9 by sheriffbot@chromium.org, May 5 2017 

This issue has been approved for a merge. Please merge the fix to any appropriate branches as soon as possible!

If all merges have been completed, please remove any remaining Merge-Approved labels from this issue.

Thanks for your time! To disable nags, add the Disable-Nags label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
Project Member

Comment 10 by sheriffbot@chromium.org, Jun 19 2017

Labels: -Merge-Approved-58
This issue hasn't been updated in the last 6 weeks, so removing its merge approval label. Please re-request a merge if needed.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Comment 11 by dbehr@chromium.org, Oct 6 2017

Status: Fixed (was: Assigned)

Comment 12 by dchan@chromium.org, Jan 22 2018

Status: Archived (was: Fixed)

Comment 13 by dchan@chromium.org, Jan 23 2018

Status: Fixed (was: Archived)
►

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