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Date: Sat, 14 Jun 2014 12:31:53 -0700 From: Kui Zhang <kuizhang@...il.com> To: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, robdclark@...il.com Subject: drm modeset lock traces on boot Hello, I am getting these on boot. The computer seems to function normally. Some time I can trigger some of the traces with: udevadm trigger [ 0.248160] ------------[ cut here ]------------ [ 0.248300] WARNING: CPU: 1 PID: 6 at kernel/time/tick-sched.c:191 can_stop_full_tick+0xb4/0xbf() [ 0.248526] NO_HZ FULL will not work with unstable sched clock [ 0.248582] Modules linked in: [ 0.248891] CPU: 1 PID: 6 Comm: kworker/u4:0 Not tainted 3.15.0+ #39 [ 0.249029] Hardware name: Sony Corporation VGN-XXXXXX [ 0.249261] ffff8800c156bfd8 ffffffff8146b43b ffff8800c6303f20 ffffffff81061b38 [ 0.249658] ffffffff810a4d50 0000000000000000 ffff8800c6303f70 ffffffff818472d0 [ 0.250068] 0000000000000040 ffffffff81061b94 ffffffff8175149a ffffffff00000018 [ 0.250467] Call Trace: [ 0.250600] <IRQ> [<ffffffff8146b43b>] ? dump_stack+0x41/0x51 [ 0.250844] [<ffffffff81061b38>] ? warn_slowpath_common+0x74/0x89 [ 0.250985] [<ffffffff810a4d50>] ? can_stop_full_tick+0xb4/0xbf [ 0.251119] [<ffffffff81061b94>] ? warn_slowpath_fmt+0x47/0x49 [ 0.251257] [<ffffffff810859c8>] ? sched_clock_cpu+0x8c/0x9b [ 0.251391] [<ffffffff810a4d50>] ? can_stop_full_tick+0xb4/0xbf [ 0.251528] [<ffffffff810a55ef>] ? tick_nohz_irq_exit+0x58/0x71 [ 0.251663] [<ffffffff810652af>] ? irq_exit+0xb3/0xb9 [ 0.251797] [<ffffffff814706ba>] ? reschedule_interrupt+0x6a/0x70 [ 0.251932] <EOI> [<ffffffff810804a3>] ? finish_task_switch+0x5d/0x10c [ 0.252158] [<ffffffff8146cab9>] ? __schedule+0x452/0x5e6 [ 0.252293] [<ffffffff81074f14>] ? worker_thread+0x2ce/0x33f [ 0.252430] [<ffffffff81074c46>] ? cancel_delayed_work_sync+0xa/0xa [ 0.252565] [<ffffffff8107908b>] ? kthread+0x9e/0xa6 [ 0.252697] [<ffffffff81080000>] ? register_sched_domain_sysctl+0x31f/0x4ae [ 0.252834] [<ffffffff81080000>] ? register_sched_domain_sysctl+0x31f/0x4ae [ 0.252969] [<ffffffff81078fed>] ? __kthread_parkme+0x55/0x55 [ 0.253104] [<ffffffff8146f1ac>] ? ret_from_fork+0x7c/0xb0 [ 0.253238] [<ffffffff81078fed>] ? __kthread_parkme+0x55/0x55 [ 0.253374] ---[ end trace 4d814acb31cba204 ]--- [ 7.250339] ------------[ cut here ]------------ [ 7.250350] WARNING: CPU: 0 PID: 1141 at drivers/gpu/drm/drm_modeset_lock.c:108 modeset_lock+0x2a/0xd0() [ 7.250353] Modules linked in: snd_seq snd_seq_device snd_timer i915(+) cfg80211 snd drm_kms_helper tpm_infineon tpm soundcore fuse firewire_ohci sr_mod cdrom firewire_core crc_itu_t uhci_hcd sky2 thermal [ 7.250375] CPU: 0 PID: 1141 Comm: systemd-udevd Tainted: G W 3.15.0+ #39 [ 7.250377] Hardware name: Sony Corporation VGN-XXXXXX [ 7.250380] 0000000000000006 ffffffff8146b43b 0000000000000000 ffffffff81061b38 [ 7.250384] ffffffff8130fd07 ffff8800c0d5f8e0 ffff8800c0da9a28 0000000000000000 [ 7.250388] 0000000000000000 ffffffff8130fd07 0000000000000001 ffff8800c0d5f910 [ 7.250393] Call Trace: [ 7.250400] [<ffffffff8146b43b>] ? dump_stack+0x41/0x51 [ 7.250407] [<ffffffff81061b38>] ? warn_slowpath_common+0x74/0x89 [ 7.250411] [<ffffffff8130fd07>] ? modeset_lock+0x2a/0xd0 [ 7.250414] [<ffffffff8130fd07>] ? modeset_lock+0x2a/0xd0 [ 7.250475] [<ffffffffa0182842>] ? intel_get_load_detect_pipe+0x89/0x3ea [i915] [ 7.250481] [<ffffffff8130b1c6>] ? drm_do_probe_ddc_edid+0xc3/0x11a [ 7.250530] [<ffffffffa01a5151>] ? intel_tv_detect+0x100/0x439 [i915] [ 7.250534] [<ffffffff8130b22f>] ? drm_probe_ddc+0x12/0x19 [ 7.250538] [<ffffffff8146c3e3>] ? schedule_timeout+0xc3/0xdc [ 7.250546] [<ffffffffa00a6e12>] ? drm_helper_probe_single_connector_modes_merge_bits+0xb9/0x2c3 [drm_kms_helper] [ 7.250552] [<ffffffffa00a7798>] ? drm_fb_helper_probe_connector_modes+0x3d/0x4c [drm_kms_helper] [ 7.250557] [<ffffffffa00a906e>] ? drm_fb_helper_initial_config+0x15c/0x407 [drm_kms_helper] [ 7.250598] [<ffffffffa016e96a>] ? gen4_write32+0x3a/0x53 [i915] [ 7.250646] [<ffffffffa01a7f57>] ? i915_driver_load+0xb42/0xd4d [i915] [ 7.250652] [<ffffffff8108a4d0>] ? pick_next_task_fair+0x14e/0x332 [ 7.250658] [<ffffffff810303a0>] ? __switch_to+0x22d/0x466 [ 7.250663] [<ffffffff8107dd1a>] ? tick_nohz_full_enabled+0x5/0x15 [ 7.250667] [<ffffffff81080516>] ? finish_task_switch+0xd0/0x10c [ 7.250673] [<ffffffff810a5265>] ? tick_nohz_full_cpu+0x8/0x2b [ 7.250678] [<ffffffff8146cab9>] ? __schedule+0x452/0x5e6 [ 7.250682] [<ffffffff813140a4>] ? get_device+0xe/0x16 [ 7.250688] [<ffffffff81465547>] ? klist_add_tail+0x1b/0x3c [ 7.250692] [<ffffffff8131544e>] ? device_add+0x4bf/0x4d0 [ 7.250697] [<ffffffff8111391c>] ? kmem_cache_alloc_trace+0x102/0x110 [ 7.250703] [<ffffffff812669a3>] ? idr_replace+0x2d/0x93 [ 7.250709] [<ffffffff81300dd9>] ? drm_dev_register+0x72/0xe3 [ 7.250714] [<ffffffff8130303c>] ? drm_get_pci_dev+0xf4/0x1b0 [ 7.250720] [<ffffffff8131d1a9>] ? __pm_runtime_resume+0x5d/0x69 [ 7.250726] [<ffffffff81288c9c>] ? pci_device_probe+0x6c/0xcb [ 7.250731] [<ffffffff81317475>] ? driver_probe_device+0x9b/0x1cf [ 7.250735] [<ffffffff8131762d>] ? __driver_attach+0x53/0x73 [ 7.250739] [<ffffffff813175da>] ? __device_attach+0x31/0x31 [ 7.250744] [<ffffffff81315d95>] ? bus_for_each_dev+0x6e/0x78 [ 7.250748] [<ffffffff81316d7c>] ? bus_add_driver+0x100/0x1c9 [ 7.250752] [<ffffffff81317997>] ? driver_register+0x83/0xbb [ 7.250756] [<ffffffffa01e9000>] ? 0xffffffffa01e8fff [ 7.250761] [<ffffffff810002da>] ? do_one_initcall+0xe3/0x162 [ 7.250765] [<ffffffff810acb61>] ? load_module+0x1a82/0x1c2b [ 7.250770] [<ffffffff810a9ec2>] ? module_flags+0x6f/0x6f [ 7.250774] [<ffffffff810acded>] ? SyS_finit_module+0x4a/0x5e [ 7.250779] [<ffffffff8146f3d1>] ? tracesys+0xd4/0xd9 [ 7.250782] ---[ end trace 4d814acb31cba206 ]--- [ 7.250785] ------------[ cut here ]------------ [ 7.250789] WARNING: CPU: 0 PID: 1141 at drivers/gpu/drm/drm_modeset_lock.c:108 modeset_lock+0x2a/0xd0() [ 7.250791] Modules linked in: snd_seq snd_seq_device snd_timer i915(+) cfg80211 snd drm_kms_helper tpm_infineon tpm soundcore fuse firewire_ohci sr_mod cdrom firewire_core crc_itu_t uhci_hcd sky2 thermal [ 7.250807] CPU: 0 PID: 1141 Comm: systemd-udevd Tainted: G W 3.15.0+ #39 [ 7.250810] Hardware name: Sony Corporation VGN-XXXXXX [ 7.250811] 0000000000000006 ffffffff8146b43b 0000000000000000 ffffffff81061b38 [ 7.250816] ffffffff8130fd07 ffff8800c0d5f8e0 ffff8800c16b7018 0000000000000000 [ 7.250820] 0000000000000000 ffffffff8130fd07 ffff8800c16b7000 ffff8800c0d5f910 [ 7.250824] Call Trace: [ 7.250828] [<ffffffff8146b43b>] ? dump_stack+0x41/0x51 [ 7.250833] [<ffffffff81061b38>] ? warn_slowpath_common+0x74/0x89 [ 7.250836] [<ffffffff8130fd07>] ? modeset_lock+0x2a/0xd0 [ 7.250840] [<ffffffff8130fd07>] ? modeset_lock+0x2a/0xd0 [ 7.250883] [<ffffffffa0182920>] ? intel_get_load_detect_pipe+0x167/0x3ea [i915] [ 7.250887] [<ffffffff8130b1c6>] ? drm_do_probe_ddc_edid+0xc3/0x11a [ 7.250934] [<ffffffffa01a5151>] ? intel_tv_detect+0x100/0x439 [i915] [ 7.250938] [<ffffffff8130b22f>] ? drm_probe_ddc+0x12/0x19 [ 7.250943] [<ffffffff8146c3e3>] ? schedule_timeout+0xc3/0xdc [ 7.250949] [<ffffffffa00a6e12>] ? drm_helper_probe_single_connector_modes_merge_bits+0xb9/0x2c3 [drm_kms_helper] [ 7.250955] [<ffffffffa00a7798>] ? drm_fb_helper_probe_connector_modes+0x3d/0x4c [drm_kms_helper] [ 7.250960] [<ffffffffa00a906e>] ? drm_fb_helper_initial_config+0x15c/0x407 [drm_kms_helper] [ 7.251001] [<ffffffffa016e96a>] ? gen4_write32+0x3a/0x53 [i915] [ 7.251048] [<ffffffffa01a7f57>] ? i915_driver_load+0xb42/0xd4d [i915] [ 7.251053] [<ffffffff8108a4d0>] ? pick_next_task_fair+0x14e/0x332 [ 7.251057] [<ffffffff810303a0>] ? __switch_to+0x22d/0x466 [ 7.251061] [<ffffffff8107dd1a>] ? tick_nohz_full_enabled+0x5/0x15 [ 7.251065] [<ffffffff81080516>] ? finish_task_switch+0xd0/0x10c [ 7.251069] [<ffffffff810a5265>] ? tick_nohz_full_cpu+0x8/0x2b [ 7.251073] [<ffffffff8146cab9>] ? __schedule+0x452/0x5e6 [ 7.251077] [<ffffffff813140a4>] ? get_device+0xe/0x16 [ 7.251081] [<ffffffff81465547>] ? klist_add_tail+0x1b/0x3c [ 7.251085] [<ffffffff8131544e>] ? device_add+0x4bf/0x4d0 [ 7.251089] [<ffffffff8111391c>] ? kmem_cache_alloc_trace+0x102/0x110 [ 7.251093] [<ffffffff812669a3>] ? idr_replace+0x2d/0x93 [ 7.251097] [<ffffffff81300dd9>] ? drm_dev_register+0x72/0xe3 [ 7.251102] [<ffffffff8130303c>] ? drm_get_pci_dev+0xf4/0x1b0 [ 7.251106] [<ffffffff8131d1a9>] ? __pm_runtime_resume+0x5d/0x69 [ 7.251110] [<ffffffff81288c9c>] ? pci_device_probe+0x6c/0xcb [ 7.251115] [<ffffffff81317475>] ? driver_probe_device+0x9b/0x1cf [ 7.251119] [<ffffffff8131762d>] ? __driver_attach+0x53/0x73 [ 7.251123] [<ffffffff813175da>] ? __device_attach+0x31/0x31 [ 7.251127] [<ffffffff81315d95>] ? bus_for_each_dev+0x6e/0x78 [ 7.251131] [<ffffffff81316d7c>] ? bus_add_driver+0x100/0x1c9 [ 7.251135] [<ffffffff81317997>] ? driver_register+0x83/0xbb [ 7.251138] [<ffffffffa01e9000>] ? 0xffffffffa01e8fff [ 7.251142] [<ffffffff810002da>] ? do_one_initcall+0xe3/0x162 [ 7.251146] [<ffffffff810acb61>] ? load_module+0x1a82/0x1c2b [ 7.251150] [<ffffffff810a9ec2>] ? module_flags+0x6f/0x6f [ 7.251154] [<ffffffff810acded>] ? SyS_finit_module+0x4a/0x5e [ 7.251159] [<ffffffff8146f3d1>] ? tracesys+0xd4/0xd9 [ 7.251161] ---[ end trace 4d814acb31cba207 ]--- [ 7.376245] ------------[ cut here ]------------ [ 7.376259] WARNING: CPU: 1 PID: 1141 at drivers/gpu/drm/drm_modeset_lock.c:90 drm_modeset_drop_locks+0x1d/0x38() [ 7.376262] Modules linked in: snd_hwdep hwmon tifm_7xx1 tifm_core snd_pcm snd_seq snd_seq_device snd_timer i915(+) cfg80211 snd drm_kms_helper tpm_infineon tpm soundcore fuse firewire_ohci sr_mod cdrom firewire_core crc_itu_t uhci_hcd sky2 thermal [ 7.376292] CPU: 1 PID: 1141 Comm: systemd-udevd Tainted: G W 3.15.0+ #39 [ 7.376295] Hardware name: Sony Corporation VGN-XXXXXX [ 7.376298] 0000000000000006 ffffffff8146b43b 0000000000000000 ffffffff81061b38 [ 7.376302] ffffffff8130fc8d ffff8800c0d5f8e0 ffff8800c0d5f8d0 ffff8800c0dae000 [ 7.376306] ffff8800c16b7000 ffffffff8130fc8d ffff8800c03e6c00 ffff8800c0d5f8d0 [ 7.376310] Call Trace: [ 7.376318] [<ffffffff8146b43b>] ? dump_stack+0x41/0x51 [ 7.376324] [<ffffffff81061b38>] ? warn_slowpath_common+0x74/0x89 [ 7.376328] [<ffffffff8130fc8d>] ? drm_modeset_drop_locks+0x1d/0x38 [ 7.376332] [<ffffffff8130fc8d>] ? drm_modeset_drop_locks+0x1d/0x38 [ 7.376394] [<ffffffffa0182c61>] ? intel_release_load_detect_pipe+0xbe/0xce [i915] [ 7.376444] [<ffffffffa01a53f3>] ? intel_tv_detect+0x3a2/0x439 [i915] [ 7.376449] [<ffffffff8146c3e3>] ? schedule_timeout+0xc3/0xdc [ 7.376457] [<ffffffffa00a6e12>] ? drm_helper_probe_single_connector_modes_merge_bits+0xb9/0x2c3 [drm_kms_helper] [ 7.376463] [<ffffffffa00a7798>] ? drm_fb_helper_probe_connector_modes+0x3d/0x4c [drm_kms_helper] [ 7.376468] [<ffffffffa00a906e>] ? drm_fb_helper_initial_config+0x15c/0x407 [drm_kms_helper] [ 7.376509] [<ffffffffa016e96a>] ? gen4_write32+0x3a/0x53 [i915] [ 7.376557] [<ffffffffa01a7f57>] ? i915_driver_load+0xb42/0xd4d [i915] [ 7.376563] [<ffffffff8108a4d0>] ? pick_next_task_fair+0x14e/0x332 [ 7.376569] [<ffffffff810303a0>] ? __switch_to+0x22d/0x466 [ 7.376574] [<ffffffff8107dd1a>] ? tick_nohz_full_enabled+0x5/0x15 [ 7.376579] [<ffffffff81080516>] ? finish_task_switch+0xd0/0x10c [ 7.376584] [<ffffffff810a5265>] ? tick_nohz_full_cpu+0x8/0x2b [ 7.376588] [<ffffffff8146cab9>] ? __schedule+0x452/0x5e6 [ 7.376593] [<ffffffff813140a4>] ? get_device+0xe/0x16 [ 7.376598] [<ffffffff81465547>] ? klist_add_tail+0x1b/0x3c [ 7.376602] [<ffffffff8131544e>] ? device_add+0x4bf/0x4d0 [ 7.376608] [<ffffffff8111391c>] ? kmem_cache_alloc_trace+0x102/0x110 [ 7.376613] [<ffffffff812669a3>] ? idr_replace+0x2d/0x93 [ 7.376619] [<ffffffff81300dd9>] ? drm_dev_register+0x72/0xe3 [ 7.376623] [<ffffffff8130303c>] ? drm_get_pci_dev+0xf4/0x1b0 [ 7.376629] [<ffffffff8131d1a9>] ? __pm_runtime_resume+0x5d/0x69 [ 7.376634] [<ffffffff81288c9c>] ? pci_device_probe+0x6c/0xcb [ 7.376639] [<ffffffff81317475>] ? driver_probe_device+0x9b/0x1cf [ 7.376643] [<ffffffff8131762d>] ? __driver_attach+0x53/0x73 [ 7.376647] [<ffffffff813175da>] ? __device_attach+0x31/0x31 [ 7.376651] [<ffffffff81315d95>] ? bus_for_each_dev+0x6e/0x78 [ 7.376655] [<ffffffff81316d7c>] ? bus_add_driver+0x100/0x1c9 [ 7.376660] [<ffffffff81317997>] ? driver_register+0x83/0xbb [ 7.376664] [<ffffffffa01e9000>] ? 0xffffffffa01e8fff [ 7.376668] [<ffffffff810002da>] ? do_one_initcall+0xe3/0x162 [ 7.376673] [<ffffffff810acb61>] ? load_module+0x1a82/0x1c2b [ 7.376677] [<ffffffff810a9ec2>] ? module_flags+0x6f/0x6f [ 7.376681] [<ffffffff810acded>] ? SyS_finit_module+0x4a/0x5e [ 7.376686] [<ffffffff8146f3d1>] ? tracesys+0xd4/0xd9 [ 7.376689] ---[ end trace 4d814acb31cba208 ]--- [ 8.690379] ------------[ cut here ]------------ [ 8.690390] WARNING: CPU: 0 PID: 881 at drivers/gpu/drm/drm_modeset_lock.c:108 modeset_lock+0x2a/0xd0() [ 8.690392] Modules linked in: snd_hda_codec_idt snd_hda_codec_generic usb_storage arc4 iwl3945 iwlegacy mac80211 dm_multipath dm_mod snd_hda_intel snd_hda_controller snd_hda_codec coretemp snd_hwdep hwmon tifm_7xx1 tifm_core snd_pcm snd_seq snd_seq_device snd_timer i915 cfg80211 snd drm_kms_helper tpm_infineon tpm soundcore fuse firewire_ohci sr_mod cdrom firewire_core crc_itu_t uhci_hcd sky2 thermal [ 8.690432] CPU: 0 PID: 881 Comm: plymouthd Tainted: G W 3.15.0+ #39 [ 8.690434] Hardware name: Sony Corporation VGN-XXXXXX [ 8.690437] 0000000000000006 ffffffff8146b43b 0000000000000000 ffffffff81061b38 [ 8.690441] ffffffff8130fd07 ffff8800c03b3be0 ffff8800c0da9a28 0000000000000000 [ 8.690445] 0000000000000000 ffffffff8130fd07 0000000000000001 ffff8800c03b3c10 [ 8.690449] Call Trace: [ 8.690457] [<ffffffff8146b43b>] ? dump_stack+0x41/0x51 [ 8.690463] [<ffffffff81061b38>] ? warn_slowpath_common+0x74/0x89 [ 8.690467] [<ffffffff8130fd07>] ? modeset_lock+0x2a/0xd0 [ 8.690471] [<ffffffff8130fd07>] ? modeset_lock+0x2a/0xd0 [ 8.690502] [<ffffffffa0182842>] ? intel_get_load_detect_pipe+0x89/0x3ea [i915] [ 8.690507] [<ffffffff8130b1c6>] ? drm_do_probe_ddc_edid+0xc3/0x11a [ 8.690529] [<ffffffffa01a5151>] ? intel_tv_detect+0x100/0x439 [i915] [ 8.690533] [<ffffffff8130b22f>] ? drm_probe_ddc+0x12/0x19 [ 8.690541] [<ffffffffa00a6e12>] ? drm_helper_probe_single_connector_modes_merge_bits+0xb9/0x2c3 [drm_kms_helper] [ 8.690546] [<ffffffff813077ab>] ? drm_mode_getconnector+0xd5/0x2e0 [ 8.690551] [<ffffffff810e9703>] ? get_page+0x9/0x25 [ 8.690555] [<ffffffff812fcb99>] ? drm_ioctl+0x33a/0x3b6 [ 8.690559] [<ffffffff813076d6>] ? drm_mode_getcrtc+0xb0/0xb0 [ 8.690565] [<ffffffff811040ad>] ? do_mmap_pgoff+0x288/0x2d6 [ 8.690570] [<ffffffff810857e3>] ? sched_clock_local+0xc/0x6a [ 8.690575] [<ffffffff8112f596>] ? do_vfs_ioctl+0x34f/0x419 [ 8.690602] [<ffffffff8108601c>] ? vtime_account_user+0x34/0x3e [ 8.690606] [<ffffffff8112f6a6>] ? SyS_ioctl+0x46/0x71 [ 8.690612] [<ffffffff8146f3d1>] ? tracesys+0xd4/0xd9 [ 8.690615] ---[ end trace 4d814acb31cba209 ]--- [ 8.690618] ------------[ cut here ]------------ [ 8.690622] WARNING: CPU: 0 PID: 881 at drivers/gpu/drm/drm_modeset_lock.c:108 modeset_lock+0x2a/0xd0() [ 8.690623] Modules linked in: snd_hda_codec_idt snd_hda_codec_generic usb_storage arc4 iwl3945 iwlegacy mac80211 dm_multipath dm_mod snd_hda_intel snd_hda_controller snd_hda_codec coretemp snd_hwdep hwmon tifm_7xx1 tifm_core snd_pcm snd_seq snd_seq_device snd_timer i915 cfg80211 snd drm_kms_helper tpm_infineon tpm soundcore fuse firewire_ohci sr_mod cdrom firewire_core crc_itu_t uhci_hcd sky2 thermal [ 8.690653] CPU: 0 PID: 881 Comm: plymouthd Tainted: G W 3.15.0+ #39 [ 8.690655] Hardware name: Sony Corporation VGN-XXXXXX [ 8.690657] 0000000000000006 ffffffff8146b43b 0000000000000000 ffffffff81061b38 [ 8.690661] ffffffff8130fd07 ffff8800c03b3be0 ffff8800c16b7018 0000000000000000 [ 8.690665] 0000000000000000 ffffffff8130fd07 ffff8800c16b7000 ffff8800c03b3c10 [ 8.690669] Call Trace: [ 8.690674] [<ffffffff8146b43b>] ? dump_stack+0x41/0x51 [ 8.690678] [<ffffffff81061b38>] ? warn_slowpath_common+0x74/0x89 [ 8.690682] [<ffffffff8130fd07>] ? modeset_lock+0x2a/0xd0 [ 8.690685] [<ffffffff8130fd07>] ? modeset_lock+0x2a/0xd0 [ 8.690706] [<ffffffffa0182920>] ? intel_get_load_detect_pipe+0x167/0x3ea [i915] [ 8.690710] [<ffffffff8130b1c6>] ? drm_do_probe_ddc_edid+0xc3/0x11a [ 8.690731] [<ffffffffa01a5151>] ? intel_tv_detect+0x100/0x439 [i915] [ 8.690735] [<ffffffff8130b22f>] ? drm_probe_ddc+0x12/0x19 [ 8.690742] [<ffffffffa00a6e12>] ? drm_helper_probe_single_connector_modes_merge_bits+0xb9/0x2c3 [drm_kms_helper] [ 8.690747] [<ffffffff813077ab>] ? drm_mode_getconnector+0xd5/0x2e0 [ 8.690750] [<ffffffff810e9703>] ? get_page+0x9/0x25 [ 8.690754] [<ffffffff812fcb99>] ? drm_ioctl+0x33a/0x3b6 [ 8.690758] [<ffffffff813076d6>] ? drm_mode_getcrtc+0xb0/0xb0 [ 8.690763] [<ffffffff811040ad>] ? do_mmap_pgoff+0x288/0x2d6 [ 8.690766] [<ffffffff810857e3>] ? sched_clock_local+0xc/0x6a [ 8.690770] [<ffffffff8112f596>] ? do_vfs_ioctl+0x34f/0x419 [ 8.690774] [<ffffffff8108601c>] ? vtime_account_user+0x34/0x3e [ 8.690778] [<ffffffff8112f6a6>] ? SyS_ioctl+0x46/0x71 [ 8.690781] [<ffffffff8146f3d1>] ? tracesys+0xd4/0xd9 [ 8.690784] ---[ end trace 4d814acb31cba20a ]--- [ 8.816060] ------------[ cut here ]------------ [ 8.816071] WARNING: CPU: 0 PID: 881 at drivers/gpu/drm/drm_modeset_lock.c:90 drm_modeset_drop_locks+0x1d/0x38() [ 8.816074] Modules linked in: snd_hda_codec_idt snd_hda_codec_generic usb_storage arc4 iwl3945 iwlegacy mac80211 dm_multipath dm_mod snd_hda_intel snd_hda_controller snd_hda_codec coretemp snd_hwdep hwmon tifm_7xx1 tifm_core snd_pcm snd_seq snd_seq_device snd_timer i915 cfg80211 snd drm_kms_helper tpm_infineon tpm soundcore fuse firewire_ohci sr_mod cdrom firewire_core crc_itu_t uhci_hcd sky2 thermal [ 8.816113] CPU: 0 PID: 881 Comm: plymouthd Tainted: G W 3.15.0+ #39 [ 8.816115] Hardware name: Sony Corporation VGN-XXXXXX [ 8.816118] 0000000000000006 ffffffff8146b43b 0000000000000000 ffffffff81061b38 [ 8.816123] ffffffff8130fc8d ffff8800c03b3be0 ffff8800c03b3bd0 ffff8800c0dae000 [ 8.816126] ffff8800c16b7000 ffffffff8130fc8d ffff8800c03e6c00 ffff8800c03b3bd0 [ 8.816131] Call Trace: [ 8.816138] [<ffffffff8146b43b>] ? dump_stack+0x41/0x51 [ 8.816145] [<ffffffff81061b38>] ? warn_slowpath_common+0x74/0x89 [ 8.816149] [<ffffffff8130fc8d>] ? drm_modeset_drop_locks+0x1d/0x38 [ 8.816152] [<ffffffff8130fc8d>] ? drm_modeset_drop_locks+0x1d/0x38 [ 8.816182] [<ffffffffa0182c61>] ? intel_release_load_detect_pipe+0xbe/0xce [i915] [ 8.816203] [<ffffffffa01a53f3>] ? intel_tv_detect+0x3a2/0x439 [i915] [ 8.816212] [<ffffffffa00a6e12>] ? drm_helper_probe_single_connector_modes_merge_bits+0xb9/0x2c3 [drm_kms_helper] [ 8.816217] [<ffffffff813077ab>] ? drm_mode_getconnector+0xd5/0x2e0 [ 8.816222] [<ffffffff810e9703>] ? get_page+0x9/0x25 [ 8.816227] [<ffffffff812fcb99>] ? drm_ioctl+0x33a/0x3b6 [ 8.816230] [<ffffffff813076d6>] ? drm_mode_getcrtc+0xb0/0xb0 [ 8.816236] [<ffffffff811040ad>] ? do_mmap_pgoff+0x288/0x2d6 [ 8.816240] [<ffffffff810857e3>] ? sched_clock_local+0xc/0x6a [ 8.816245] [<ffffffff8112f596>] ? do_vfs_ioctl+0x34f/0x419 [ 8.816249] [<ffffffff8108601c>] ? vtime_account_user+0x34/0x3e [ 8.816253] [<ffffffff8112f6a6>] ? SyS_ioctl+0x46/0x71 [ 8.816258] [<ffffffff8146f3d1>] ? tracesys+0xd4/0xd9 [ 8.816261] ---[ end trace 4d814acb31cba20b ]--- [ 8.816289] ------------[ cut here ]------------ [ 8.816294] WARNING: CPU: 0 PID: 881 at drivers/gpu/drm/drm_modeset_lock.c:108 modeset_lock+0x2a/0xd0() [ 8.816295] Modules linked in: snd_hda_codec_idt snd_hda_codec_generic usb_storage arc4 iwl3945 iwlegacy mac80211 dm_multipath dm_mod snd_hda_intel snd_hda_controller snd_hda_codec coretemp snd_hwdep hwmon tifm_7xx1 tifm_core snd_pcm snd_seq snd_seq_device snd_timer i915 cfg80211 snd drm_kms_helper tpm_infineon tpm soundcore fuse firewire_ohci sr_mod cdrom firewire_core crc_itu_t uhci_hcd sky2 thermal [ 8.816324] CPU: 0 PID: 881 Comm: plymouthd Tainted: G W 3.15.0+ #39 [ 8.816327] Hardware name: Sony Corporation VGN-XXXXXX [ 8.816329] 0000000000000006 ffffffff8146b43b 0000000000000000 ffffffff81061b38 [ 8.816333] ffffffff8130fd07 ffff8800c03b3be0 ffff8800c0da9a28 0000000000000000 [ 8.816337] 0000000000000000 ffffffff8130fd07 0000000000000001 ffff8800c03b3c10 [ 8.816341] Call Trace: [ 8.816346] [<ffffffff8146b43b>] ? dump_stack+0x41/0x51 [ 8.816350] [<ffffffff81061b38>] ? warn_slowpath_common+0x74/0x89 [ 8.816354] [<ffffffff8130fd07>] ? modeset_lock+0x2a/0xd0 [ 8.816357] [<ffffffff8130fd07>] ? modeset_lock+0x2a/0xd0 [ 8.816378] [<ffffffffa0182842>] ? intel_get_load_detect_pipe+0x89/0x3ea [i915] [ 8.816383] [<ffffffff81061b3d>] ? warn_slowpath_common+0x79/0x89 [ 8.816386] [<ffffffff8130fc8d>] ? drm_modeset_drop_locks+0x1d/0x38 [ 8.816390] [<ffffffff8130fca3>] ? drm_modeset_drop_locks+0x33/0x38 [ 8.816410] [<ffffffffa01a5151>] ? intel_tv_detect+0x100/0x439 [i915] [ 8.816416] [<ffffffff810f46de>] ? __mod_zone_page_state+0x51/0x5c [ 8.816423] [<ffffffffa00a6e12>] ? drm_helper_probe_single_connector_modes_merge_bits+0xb9/0x2c3 [drm_kms_helper] [ 8.816427] [<ffffffff813077ab>] ? drm_mode_getconnector+0xd5/0x2e0 [ 8.816431] [<ffffffff810e9703>] ? get_page+0x9/0x25 [ 8.816435] [<ffffffff812fcb99>] ? drm_ioctl+0x33a/0x3b6 [ 8.816439] [<ffffffff813076d6>] ? drm_mode_getcrtc+0xb0/0xb0 [ 8.816443] [<ffffffff811131c3>] ? kmem_cache_free+0xf6/0x12b [ 8.816447] [<ffffffff81132028>] ? dput+0x12e/0x148 [ 8.816451] [<ffffffff8112f596>] ? do_vfs_ioctl+0x34f/0x419 [ 8.816455] [<ffffffff8112f6a6>] ? SyS_ioctl+0x46/0x71 [ 8.816459] [<ffffffff8146f3d1>] ? tracesys+0xd4/0xd9 [ 8.816462] ---[ end trace 4d814acb31cba20c ]--- [ 8.816464] ------------[ cut here ]------------ [ 8.816467] WARNING: CPU: 0 PID: 881 at drivers/gpu/drm/drm_modeset_lock.c:108 modeset_lock+0x2a/0xd0() [ 8.816469] Modules linked in: snd_hda_codec_idt snd_hda_codec_generic usb_storage arc4 iwl3945 iwlegacy mac80211 dm_multipath dm_mod snd_hda_intel snd_hda_controller snd_hda_codec coretemp snd_hwdep hwmon tifm_7xx1 tifm_core snd_pcm snd_seq snd_seq_device snd_timer i915 cfg80211 snd drm_kms_helper tpm_infineon tpm soundcore fuse firewire_ohci sr_mod cdrom firewire_core crc_itu_t uhci_hcd sky2 thermal [ 8.816498] CPU: 0 PID: 881 Comm: plymouthd Tainted: G W 3.15.0+ #39 [ 8.816500] Hardware name: Sony Corporation VGN-XXXXXX [ 8.816502] 0000000000000006 ffffffff8146b43b 0000000000000000 ffffffff81061b38 [ 8.816506] ffffffff8130fd07 ffff8800c03b3be0 ffff8800c16b7018 0000000000000000 [ 8.816510] 0000000000000000 ffffffff8130fd07 ffff8800c16b7000 ffff8800c03b3c10 [ 8.816514] Call Trace: [ 8.816519] [<ffffffff8146b43b>] ? dump_stack+0x41/0x51 [ 8.816523] [<ffffffff81061b38>] ? warn_slowpath_common+0x74/0x89 [ 8.816526] [<ffffffff8130fd07>] ? modeset_lock+0x2a/0xd0 [ 8.816530] [<ffffffff8130fd07>] ? modeset_lock+0x2a/0xd0 [ 8.816551] [<ffffffffa0182920>] ? intel_get_load_detect_pipe+0x167/0x3ea [i915] [ 8.816555] [<ffffffff81061b3d>] ? warn_slowpath_common+0x79/0x89 [ 8.816559] [<ffffffff8130fc8d>] ? drm_modeset_drop_locks+0x1d/0x38 [ 8.816562] [<ffffffff8130fca3>] ? drm_modeset_drop_locks+0x33/0x38 [ 8.816582] [<ffffffffa01a5151>] ? intel_tv_detect+0x100/0x439 [i915] [ 8.816587] [<ffffffff810f46de>] ? __mod_zone_page_state+0x51/0x5c [ 8.816594] [<ffffffffa00a6e12>] ? drm_helper_probe_single_connector_modes_merge_bits+0xb9/0x2c3 [drm_kms_helper] [ 8.816598] [<ffffffff813077ab>] ? drm_mode_getconnector+0xd5/0x2e0 [ 8.816602] [<ffffffff810e9703>] ? get_page+0x9/0x25 [ 8.816606] [<ffffffff812fcb99>] ? drm_ioctl+0x33a/0x3b6 [ 8.816609] [<ffffffff813076d6>] ? drm_mode_getcrtc+0xb0/0xb0 [ 8.816613] [<ffffffff811131c3>] ? kmem_cache_free+0xf6/0x12b [ 8.816617] [<ffffffff81132028>] ? dput+0x12e/0x148 [ 8.816621] [<ffffffff8112f596>] ? do_vfs_ioctl+0x34f/0x419 [ 8.816625] [<ffffffff8112f6a6>] ? SyS_ioctl+0x46/0x71 [ 8.816629] [<ffffffff8146f3d1>] ? tracesys+0xd4/0xd9 [ 8.816631] ---[ end trace 4d814acb31cba20d ]--- [ 8.926029] ------------[ cut here ]------------ [ 8.926039] WARNING: CPU: 0 PID: 881 at drivers/gpu/drm/drm_modeset_lock.c:90 drm_modeset_drop_locks+0x1d/0x38() [ 8.926041] Modules linked in: snd_hda_codec_idt snd_hda_codec_generic usb_storage arc4 iwl3945 iwlegacy mac80211 dm_multipath dm_mod snd_hda_intel snd_hda_controller snd_hda_codec coretemp snd_hwdep hwmon tifm_7xx1 tifm_core snd_pcm snd_seq snd_seq_device snd_timer i915 cfg80211 snd drm_kms_helper tpm_infineon tpm soundcore fuse firewire_ohci sr_mod cdrom firewire_core crc_itu_t uhci_hcd sky2 thermal [ 8.926079] CPU: 0 PID: 881 Comm: plymouthd Tainted: G W 3.15.0+ #39 [ 8.926081] Hardware name: Sony Corporation VGN-XXXXXX [ 8.926084] 0000000000000006 ffffffff8146b43b 0000000000000000 ffffffff81061b38 [ 8.926088] ffffffff8130fc8d ffff8800c03b3be0 ffff8800c03b3bd0 ffff8800c0dae000 [ 8.926092] ffff8800c16b7000 ffffffff8130fc8d ffff8800c03e6c00 ffff8800c03b3bd0 [ 8.926096] Call Trace: [ 8.926103] [<ffffffff8146b43b>] ? dump_stack+0x41/0x51 [ 8.926110] [<ffffffff81061b38>] ? warn_slowpath_common+0x74/0x89 [ 8.926113] [<ffffffff8130fc8d>] ? drm_modeset_drop_locks+0x1d/0x38 [ 8.926117] [<ffffffff8130fc8d>] ? drm_modeset_drop_locks+0x1d/0x38 [ 8.926144] [<ffffffffa0182c61>] ? intel_release_load_detect_pipe+0xbe/0xce [i915] [ 8.926165] [<ffffffffa01a53f3>] ? intel_tv_detect+0x3a2/0x439 [i915] [ 8.926173] [<ffffffffa00a6e12>] ? drm_helper_probe_single_connector_modes_merge_bits+0xb9/0x2c3 [drm_kms_helper] [ 8.926178] [<ffffffff813077ab>] ? drm_mode_getconnector+0xd5/0x2e0 [ 8.926183] [<ffffffff810e9703>] ? get_page+0x9/0x25 [ 8.926188] [<ffffffff812fcb99>] ? drm_ioctl+0x33a/0x3b6 [ 8.926192] [<ffffffff813076d6>] ? drm_mode_getcrtc+0xb0/0xb0 [ 8.926197] [<ffffffff811131c3>] ? kmem_cache_free+0xf6/0x12b [ 8.926202] [<ffffffff81132028>] ? dput+0x12e/0x148 [ 8.926206] [<ffffffff8112f596>] ? do_vfs_ioctl+0x34f/0x419 [ 8.926209] [<ffffffff8112f6a6>] ? SyS_ioctl+0x46/0x71 [ 8.926214] [<ffffffff8146f3d1>] ? tracesys+0xd4/0xd9 [ 8.926217] ---[ end trace 4d814acb31cba20e ]--- Thanks Kui.Z -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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