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[Bug 1598636] [NEW] INFO: task alsa-sink-ALC32:3263 blocked for more than 120 seconds.

 

Public bug reported:

Jul  3 14:54:52 raven kernel: [ 1919.788166] INFO: task alsa-sink-ALC32:3263 blocked for more than 120 seconds.
Jul  3 14:54:52 raven kernel: [ 1919.788171]       Not tainted 4.4.0-28-generic #47-Ubuntu
Jul  3 14:54:52 raven kernel: [ 1919.788173] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jul  3 14:54:52 raven kernel: [ 1919.788174] alsa-sink-ALC32 D ffff88003e343b98     0  3263   2779 0x00000004
Jul  3 14:54:52 raven kernel: [ 1919.788179]  ffff88003e343b98 ffff88003e343b98 ffff8800c51bb700 ffff880415a21b80
Jul  3 14:54:52 raven kernel: [ 1919.788182]  ffff88003e344000 ffff88041a062c04 ffff880415a21b80 00000000ffffffff
Jul  3 14:54:52 raven kernel: [ 1919.788184]  ffff88041a062c08 ffff88003e343bb0 ffffffff818235b5 ffff88041a062c00
Jul  3 14:54:52 raven kernel: [ 1919.788187] Call Trace:
Jul  3 14:54:52 raven kernel: [ 1919.788194]  [<ffffffff818235b5>] schedule+0x35/0x80
Jul  3 14:54:52 raven kernel: [ 1919.788197]  [<ffffffff8182385e>] schedule_preempt_disabled+0xe/0x10
Jul  3 14:54:52 raven kernel: [ 1919.788200]  [<ffffffff81825499>] __mutex_lock_slowpath+0xb9/0x130
Jul  3 14:54:52 raven kernel: [ 1919.788203]  [<ffffffff8182552f>] mutex_lock+0x1f/0x30
Jul  3 14:54:52 raven kernel: [ 1919.788207]  [<ffffffff815648de>] regmap_lock_mutex+0xe/0x10
Jul  3 14:54:52 raven kernel: [ 1919.788210]  [<ffffffff815672df>] regmap_read+0x2f/0x60
Jul  3 14:54:52 raven kernel: [ 1919.788218]  [<ffffffffc04e3dba>] snd_hdac_regmap_read_raw+0x2a/0xa0 [snd_hda_core]
Jul  3 14:54:52 raven kernel: [ 1919.788222]  [<ffffffffc04e18ad>] _snd_hdac_read_parm+0x1d/0x20 [snd_hda_core]
Jul  3 14:54:52 raven kernel: [ 1919.788232]  [<ffffffffc05239b4>] query_amp_caps+0x54/0x90 [snd_hda_codec]
Jul  3 14:54:52 raven kernel: [ 1919.788238]  [<ffffffffc0523c9b>] snd_hda_codec_amp_update+0x4b/0x80 [snd_hda_codec]
Jul  3 14:54:52 raven kernel: [ 1919.788244]  [<ffffffffc0523de2>] snd_hda_mixer_amp_switch_put+0x82/0x100 [snd_hda_codec]
Jul  3 14:54:52 raven kernel: [ 1919.788250]  [<ffffffffc0633112>] hda_gen_mixer_mute_put+0x42/0x50 [snd_hda_codec_generic]
Jul  3 14:54:52 raven kernel: [ 1919.788257]  [<ffffffffc0269eb1>] slave_put_val+0x71/0xc0 [snd]
Jul  3 14:54:52 raven kernel: [ 1919.788262]  [<ffffffffc0269f60>] slave_put+0x60/0x90 [snd]
Jul  3 14:54:52 raven kernel: [ 1919.788266]  [<ffffffffc0265e0c>] snd_ctl_elem_write+0x11c/0x1a0 [snd]
Jul  3 14:54:52 raven kernel: [ 1919.788271]  [<ffffffff811ef4d4>] ? __kmalloc_track_caller+0x1b4/0x250
Jul  3 14:54:52 raven kernel: [ 1919.788275]  [<ffffffffc0266fe2>] snd_ctl_ioctl+0xe2/0x6b0 [snd]
Jul  3 14:54:52 raven kernel: [ 1919.788278]  [<ffffffff81220b6f>] do_vfs_ioctl+0x29f/0x490
Jul  3 14:54:52 raven kernel: [ 1919.788281]  [<ffffffff8120d1e4>] ? vfs_read+0x114/0x130
Jul  3 14:54:52 raven kernel: [ 1919.788284]  [<ffffffff81220dd9>] SyS_ioctl+0x79/0x90
Jul  3 14:54:52 raven kernel: [ 1919.788286]  [<ffffffff818276b2>] entry_SYSCALL_64_fastpath+0x16/0x71
Jul  3 14:54:52 raven kernel: [ 1919.788293] INFO: task mplayer:3655 blocked for more than 120 seconds.
Jul  3 14:54:52 raven kernel: [ 1919.788294]       Not tainted 4.4.0-28-generic #47-Ubuntu
Jul  3 14:54:52 raven kernel: [ 1919.788296] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jul  3 14:54:52 raven kernel: [ 1919.788297] mplayer         D ffff8800c573bd38     0  3655   3373 0x00000004
Jul  3 14:54:52 raven kernel: [ 1919.788300]  ffff8800c573bd38 ffff8800c573bef4 ffffffff81e11500 ffff88040f109b80
Jul  3 14:54:52 raven kernel: [ 1919.788302]  ffff8800c573c000 ffff88040e92d488 ffff88040e92d470 ffffffff00000000
Jul  3 14:54:52 raven kernel: [ 1919.788304]  ffffffff00000001 ffff8800c573bd50 ffffffff818235b5 ffff88040f109b80
Jul  3 14:54:52 raven kernel: [ 1919.788307] Call Trace:
Jul  3 14:54:52 raven kernel: [ 1919.788310]  [<ffffffff818235b5>] schedule+0x35/0x80
Jul  3 14:54:52 raven kernel: [ 1919.788313]  [<ffffffff81826202>] rwsem_down_write_failed+0x202/0x350
Jul  3 14:54:52 raven kernel: [ 1919.788317]  [<ffffffff813f9643>] call_rwsem_down_write_failed+0x13/0x20
Jul  3 14:54:52 raven kernel: [ 1919.788320]  [<ffffffff81825a3d>] ? down_write+0x2d/0x40
Jul  3 14:54:52 raven kernel: [ 1919.788324]  [<ffffffffc026430d>] snd_ctl_release+0x7d/0x120 [snd]
Jul  3 14:54:52 raven kernel: [ 1919.788327]  [<ffffffff8120eef4>] __fput+0xe4/0x220
Jul  3 14:54:52 raven kernel: [ 1919.788330]  [<ffffffff8120f06e>] ____fput+0xe/0x10
Jul  3 14:54:52 raven kernel: [ 1919.788334]  [<ffffffff8109ec1f>] task_work_run+0x7f/0xa0
Jul  3 14:54:52 raven kernel: [ 1919.788337]  [<ffffffff81003242>] exit_to_usermode_loop+0xc2/0xd0
Jul  3 14:54:52 raven kernel: [ 1919.788340]  [<ffffffff81003c6e>] syscall_return_slowpath+0x4e/0x60
Jul  3 14:54:52 raven kernel: [ 1919.788342]  [<ffffffff81827810>] int_ret_from_sys_call+0x25/0x8f
Jul  3 14:54:52 raven kernel: [ 1919.788344] INFO: task kworker/3:0:4270 blocked for more than 120 seconds.
Jul  3 14:54:52 raven kernel: [ 1919.788346]       Not tainted 4.4.0-28-generic #47-Ubuntu
Jul  3 14:54:52 raven kernel: [ 1919.788347] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jul  3 14:54:52 raven kernel: [ 1919.788348] kworker/3:0     D ffff88038172f9b8     0  4270      2 0x00000000
Jul  3 14:54:52 raven kernel: [ 1919.788355] Workqueue: events process_unsol_events [snd_hda_core]
Jul  3 14:54:52 raven kernel: [ 1919.788356]  ffff88038172f9b8 ffff88038172f988 ffff88041b6f2940 ffff880405dc44c0
Jul  3 14:54:52 raven kernel: [ 1919.788358]  ffff880381730000 ffff88041a062c04 ffff880405dc44c0 00000000ffffffff
Jul  3 14:54:52 raven kernel: [ 1919.788360]  ffff88041a062c08 ffff88038172f9d0 ffffffff818235b5 ffff88041a062c00
Jul  3 14:54:52 raven kernel: [ 1919.788363] Call Trace:
Jul  3 14:54:52 raven kernel: [ 1919.788365]  [<ffffffff818235b5>] schedule+0x35/0x80
Jul  3 14:54:52 raven kernel: [ 1919.788368]  [<ffffffff8182385e>] schedule_preempt_disabled+0xe/0x10
Jul  3 14:54:52 raven kernel: [ 1919.788371]  [<ffffffff81825499>] __mutex_lock_slowpath+0xb9/0x130
Jul  3 14:54:52 raven kernel: [ 1919.788374]  [<ffffffff8182552f>] mutex_lock+0x1f/0x30
Jul  3 14:54:52 raven kernel: [ 1919.788376]  [<ffffffff815648de>] regmap_lock_mutex+0xe/0x10
Jul  3 14:54:52 raven kernel: [ 1919.788379]  [<ffffffff81569544>] regcache_mark_dirty+0x14/0x30
Jul  3 14:54:52 raven kernel: [ 1919.788386]  [<ffffffffc0524767>] hda_call_codec_resume+0x27/0x120 [snd_hda_codec]
Jul  3 14:54:52 raven kernel: [ 1919.788392]  [<ffffffffc0524ba5>] hda_codec_runtime_resume+0x35/0x50 [snd_hda_codec]
Jul  3 14:54:52 raven kernel: [ 1919.788395]  [<ffffffff81558303>] __rpm_callback+0x33/0x70
Jul  3 14:54:52 raven kernel: [ 1919.788401]  [<ffffffffc0524b70>] ? snd_hda_add_imux_item+0x120/0x120 [snd_hda_codec]
Jul  3 14:54:52 raven kernel: [ 1919.788403]  [<ffffffff81558364>] rpm_callback+0x24/0x80
Jul  3 14:54:52 raven kernel: [ 1919.788409]  [<ffffffffc0524b70>] ? snd_hda_add_imux_item+0x120/0x120 [snd_hda_codec]
Jul  3 14:54:52 raven kernel: [ 1919.788412]  [<ffffffff81558b27>] rpm_resume+0x497/0x6a0
Jul  3 14:54:52 raven kernel: [ 1919.788416]  [<ffffffff810c3ca0>] ? wake_atomic_t_function+0x60/0x60
Jul  3 14:54:52 raven kernel: [ 1919.788419]  [<ffffffff815595be>] __pm_runtime_resume+0x4e/0x70
Jul  3 14:54:52 raven kernel: [ 1919.788424]  [<ffffffffc04e298b>] snd_hdac_power_up_pm+0x3b/0x60 [snd_hda_core]
Jul  3 14:54:52 raven kernel: [ 1919.788430]  [<ffffffffc05235ee>] codec_exec_verb+0x5e/0x120 [snd_hda_codec]
Jul  3 14:54:52 raven kernel: [ 1919.788434]  [<ffffffffc04e2037>] snd_hdac_exec_verb+0x17/0x40 [snd_hda_core]
Jul  3 14:54:52 raven kernel: [ 1919.788439]  [<ffffffffc04e3c0d>] hda_reg_write.part.2+0x10d/0x270 [snd_hda_core]
Jul  3 14:54:52 raven kernel: [ 1919.788443]  [<ffffffffc04e3d87>] hda_reg_write+0x17/0x20 [snd_hda_core]
Jul  3 14:54:52 raven kernel: [ 1919.788446]  [<ffffffff8156753b>] _regmap_write+0x6b/0x100
Jul  3 14:54:52 raven kernel: [ 1919.788449]  [<ffffffff81568b9c>] regmap_write+0x3c/0x60
Jul  3 14:54:52 raven kernel: [ 1919.788454]  [<ffffffffc04e3e5a>] snd_hdac_regmap_write_raw+0x2a/0xc0 [snd_hda_core]
Jul  3 14:54:52 raven kernel: [ 1919.788458]  [<ffffffffc0636696>] do_automute.constprop.39+0x126/0x190 [snd_hda_codec_generic]
Jul  3 14:54:52 raven kernel: [ 1919.788462]  [<ffffffffc06367b1>] snd_hda_gen_update_outputs+0xb1/0x130 [snd_hda_codec_generic]
Jul  3 14:54:52 raven kernel: [ 1919.788465]  [<ffffffffc063688e>] call_update_outputs+0x5e/0x60 [snd_hda_codec_generic]
Jul  3 14:54:52 raven kernel: [ 1919.788469]  [<ffffffffc06368fb>] snd_hda_gen_hp_automute+0x6b/0x70 [snd_hda_codec_generic]
Jul  3 14:54:52 raven kernel: [ 1919.788472]  [<ffffffffc0636925>] call_hp_automute+0x25/0x30 [snd_hda_codec_generic]
Jul  3 14:54:52 raven kernel: [ 1919.788479]  [<ffffffffc0528205>] call_jack_callback.isra.1+0x25/0xa0 [snd_hda_codec]
Jul  3 14:54:52 raven kernel: [ 1919.788485]  [<ffffffffc0528607>] snd_hda_jack_unsol_event+0x67/0x80 [snd_hda_codec]
Jul  3 14:54:52 raven kernel: [ 1919.788491]  [<ffffffffc0522077>] hda_codec_unsol_event+0x17/0x20 [snd_hda_codec]
Jul  3 14:54:52 raven kernel: [ 1919.788495]  [<ffffffffc04e1323>] process_unsol_events+0x63/0x70 [snd_hda_core]
Jul  3 14:54:52 raven kernel: [ 1919.788498]  [<ffffffff8109a2c5>] process_one_work+0x165/0x480
Jul  3 14:54:52 raven kernel: [ 1919.788500]  [<ffffffff8109a62b>] worker_thread+0x4b/0x4c0
Jul  3 14:54:52 raven kernel: [ 1919.788503]  [<ffffffff8109a5e0>] ? process_one_work+0x480/0x480
Jul  3 14:54:52 raven kernel: [ 1919.788505]  [<ffffffff810a0808>] kthread+0xd8/0xf0
Jul  3 14:54:52 raven kernel: [ 1919.788507]  [<ffffffff810a0730>] ? kthread_create_on_node+0x1e0/0x1e0
Jul  3 14:54:52 raven kernel: [ 1919.788509]  [<ffffffff81827a4f>] ret_from_fork+0x3f/0x70
Jul  3 14:54:52 raven kernel: [ 1919.788511]  [<ffffffff810a0730>] ? kthread_create_on_node+0x1e0/0x1e0

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-28-generic 4.4.0-28.47
ProcVersionSignature: Ubuntu 4.4.0-28.47-generic 4.4.13
Uname: Linux 4.4.0-28-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  shevek     2968 F.... pulseaudio
 /dev/snd/controlC1:  shevek     2968 F.... pulseaudio
CurrentDesktop: XFCE
Date: Sun Jul  3 16:07:57 2016
HibernationDevice: RESUME=UUID=22fd2208-7557-432d-bbff-95dd97905323
InstallationDate: Installed on 2015-05-18 (412 days ago)
InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422.1)
MachineType: LENOVO 20CKCT01WW
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-28-generic.efi.signed root=/dev/mapper/xubuntu--vg-root ro noprompt persistent quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-4.4.0-28-generic N/A
 linux-backports-modules-4.4.0-28-generic  N/A
 linux-firmware                            1.157.1
SourcePackage: linux
UpgradeStatus: Upgraded to xenial on 2016-06-23 (10 days ago)
dmi.bios.date: 08/20/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: N11ET34W (1.10 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20CKCT01WW
dmi.board.vendor: LENOVO
dmi.board.version: 0B98417 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrN11ET34W(1.10):bd08/20/2015:svnLENOVO:pn20CKCT01WW:pvrThinkPadT550:rvnLENOVO:rn20CKCT01WW:rvr0B98417WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.name: 20CKCT01WW
dmi.product.version: ThinkPad T550
dmi.sys.vendor: LENOVO

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug xenial

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https://bugs.launchpad.net/bugs/1598636

Title:
  INFO: task alsa-sink-ALC32:3263 blocked for more than 120 seconds.

Status in linux package in Ubuntu:
  New

Bug description:
  Jul  3 14:54:52 raven kernel: [ 1919.788166] INFO: task alsa-sink-ALC32:3263 blocked for more than 120 seconds.
  Jul  3 14:54:52 raven kernel: [ 1919.788171]       Not tainted 4.4.0-28-generic #47-Ubuntu
  Jul  3 14:54:52 raven kernel: [ 1919.788173] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  Jul  3 14:54:52 raven kernel: [ 1919.788174] alsa-sink-ALC32 D ffff88003e343b98     0  3263   2779 0x00000004
  Jul  3 14:54:52 raven kernel: [ 1919.788179]  ffff88003e343b98 ffff88003e343b98 ffff8800c51bb700 ffff880415a21b80
  Jul  3 14:54:52 raven kernel: [ 1919.788182]  ffff88003e344000 ffff88041a062c04 ffff880415a21b80 00000000ffffffff
  Jul  3 14:54:52 raven kernel: [ 1919.788184]  ffff88041a062c08 ffff88003e343bb0 ffffffff818235b5 ffff88041a062c00
  Jul  3 14:54:52 raven kernel: [ 1919.788187] Call Trace:
  Jul  3 14:54:52 raven kernel: [ 1919.788194]  [<ffffffff818235b5>] schedule+0x35/0x80
  Jul  3 14:54:52 raven kernel: [ 1919.788197]  [<ffffffff8182385e>] schedule_preempt_disabled+0xe/0x10
  Jul  3 14:54:52 raven kernel: [ 1919.788200]  [<ffffffff81825499>] __mutex_lock_slowpath+0xb9/0x130
  Jul  3 14:54:52 raven kernel: [ 1919.788203]  [<ffffffff8182552f>] mutex_lock+0x1f/0x30
  Jul  3 14:54:52 raven kernel: [ 1919.788207]  [<ffffffff815648de>] regmap_lock_mutex+0xe/0x10
  Jul  3 14:54:52 raven kernel: [ 1919.788210]  [<ffffffff815672df>] regmap_read+0x2f/0x60
  Jul  3 14:54:52 raven kernel: [ 1919.788218]  [<ffffffffc04e3dba>] snd_hdac_regmap_read_raw+0x2a/0xa0 [snd_hda_core]
  Jul  3 14:54:52 raven kernel: [ 1919.788222]  [<ffffffffc04e18ad>] _snd_hdac_read_parm+0x1d/0x20 [snd_hda_core]
  Jul  3 14:54:52 raven kernel: [ 1919.788232]  [<ffffffffc05239b4>] query_amp_caps+0x54/0x90 [snd_hda_codec]
  Jul  3 14:54:52 raven kernel: [ 1919.788238]  [<ffffffffc0523c9b>] snd_hda_codec_amp_update+0x4b/0x80 [snd_hda_codec]
  Jul  3 14:54:52 raven kernel: [ 1919.788244]  [<ffffffffc0523de2>] snd_hda_mixer_amp_switch_put+0x82/0x100 [snd_hda_codec]
  Jul  3 14:54:52 raven kernel: [ 1919.788250]  [<ffffffffc0633112>] hda_gen_mixer_mute_put+0x42/0x50 [snd_hda_codec_generic]
  Jul  3 14:54:52 raven kernel: [ 1919.788257]  [<ffffffffc0269eb1>] slave_put_val+0x71/0xc0 [snd]
  Jul  3 14:54:52 raven kernel: [ 1919.788262]  [<ffffffffc0269f60>] slave_put+0x60/0x90 [snd]
  Jul  3 14:54:52 raven kernel: [ 1919.788266]  [<ffffffffc0265e0c>] snd_ctl_elem_write+0x11c/0x1a0 [snd]
  Jul  3 14:54:52 raven kernel: [ 1919.788271]  [<ffffffff811ef4d4>] ? __kmalloc_track_caller+0x1b4/0x250
  Jul  3 14:54:52 raven kernel: [ 1919.788275]  [<ffffffffc0266fe2>] snd_ctl_ioctl+0xe2/0x6b0 [snd]
  Jul  3 14:54:52 raven kernel: [ 1919.788278]  [<ffffffff81220b6f>] do_vfs_ioctl+0x29f/0x490
  Jul  3 14:54:52 raven kernel: [ 1919.788281]  [<ffffffff8120d1e4>] ? vfs_read+0x114/0x130
  Jul  3 14:54:52 raven kernel: [ 1919.788284]  [<ffffffff81220dd9>] SyS_ioctl+0x79/0x90
  Jul  3 14:54:52 raven kernel: [ 1919.788286]  [<ffffffff818276b2>] entry_SYSCALL_64_fastpath+0x16/0x71
  Jul  3 14:54:52 raven kernel: [ 1919.788293] INFO: task mplayer:3655 blocked for more than 120 seconds.
  Jul  3 14:54:52 raven kernel: [ 1919.788294]       Not tainted 4.4.0-28-generic #47-Ubuntu
  Jul  3 14:54:52 raven kernel: [ 1919.788296] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  Jul  3 14:54:52 raven kernel: [ 1919.788297] mplayer         D ffff8800c573bd38     0  3655   3373 0x00000004
  Jul  3 14:54:52 raven kernel: [ 1919.788300]  ffff8800c573bd38 ffff8800c573bef4 ffffffff81e11500 ffff88040f109b80
  Jul  3 14:54:52 raven kernel: [ 1919.788302]  ffff8800c573c000 ffff88040e92d488 ffff88040e92d470 ffffffff00000000
  Jul  3 14:54:52 raven kernel: [ 1919.788304]  ffffffff00000001 ffff8800c573bd50 ffffffff818235b5 ffff88040f109b80
  Jul  3 14:54:52 raven kernel: [ 1919.788307] Call Trace:
  Jul  3 14:54:52 raven kernel: [ 1919.788310]  [<ffffffff818235b5>] schedule+0x35/0x80
  Jul  3 14:54:52 raven kernel: [ 1919.788313]  [<ffffffff81826202>] rwsem_down_write_failed+0x202/0x350
  Jul  3 14:54:52 raven kernel: [ 1919.788317]  [<ffffffff813f9643>] call_rwsem_down_write_failed+0x13/0x20
  Jul  3 14:54:52 raven kernel: [ 1919.788320]  [<ffffffff81825a3d>] ? down_write+0x2d/0x40
  Jul  3 14:54:52 raven kernel: [ 1919.788324]  [<ffffffffc026430d>] snd_ctl_release+0x7d/0x120 [snd]
  Jul  3 14:54:52 raven kernel: [ 1919.788327]  [<ffffffff8120eef4>] __fput+0xe4/0x220
  Jul  3 14:54:52 raven kernel: [ 1919.788330]  [<ffffffff8120f06e>] ____fput+0xe/0x10
  Jul  3 14:54:52 raven kernel: [ 1919.788334]  [<ffffffff8109ec1f>] task_work_run+0x7f/0xa0
  Jul  3 14:54:52 raven kernel: [ 1919.788337]  [<ffffffff81003242>] exit_to_usermode_loop+0xc2/0xd0
  Jul  3 14:54:52 raven kernel: [ 1919.788340]  [<ffffffff81003c6e>] syscall_return_slowpath+0x4e/0x60
  Jul  3 14:54:52 raven kernel: [ 1919.788342]  [<ffffffff81827810>] int_ret_from_sys_call+0x25/0x8f
  Jul  3 14:54:52 raven kernel: [ 1919.788344] INFO: task kworker/3:0:4270 blocked for more than 120 seconds.
  Jul  3 14:54:52 raven kernel: [ 1919.788346]       Not tainted 4.4.0-28-generic #47-Ubuntu
  Jul  3 14:54:52 raven kernel: [ 1919.788347] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  Jul  3 14:54:52 raven kernel: [ 1919.788348] kworker/3:0     D ffff88038172f9b8     0  4270      2 0x00000000
  Jul  3 14:54:52 raven kernel: [ 1919.788355] Workqueue: events process_unsol_events [snd_hda_core]
  Jul  3 14:54:52 raven kernel: [ 1919.788356]  ffff88038172f9b8 ffff88038172f988 ffff88041b6f2940 ffff880405dc44c0
  Jul  3 14:54:52 raven kernel: [ 1919.788358]  ffff880381730000 ffff88041a062c04 ffff880405dc44c0 00000000ffffffff
  Jul  3 14:54:52 raven kernel: [ 1919.788360]  ffff88041a062c08 ffff88038172f9d0 ffffffff818235b5 ffff88041a062c00
  Jul  3 14:54:52 raven kernel: [ 1919.788363] Call Trace:
  Jul  3 14:54:52 raven kernel: [ 1919.788365]  [<ffffffff818235b5>] schedule+0x35/0x80
  Jul  3 14:54:52 raven kernel: [ 1919.788368]  [<ffffffff8182385e>] schedule_preempt_disabled+0xe/0x10
  Jul  3 14:54:52 raven kernel: [ 1919.788371]  [<ffffffff81825499>] __mutex_lock_slowpath+0xb9/0x130
  Jul  3 14:54:52 raven kernel: [ 1919.788374]  [<ffffffff8182552f>] mutex_lock+0x1f/0x30
  Jul  3 14:54:52 raven kernel: [ 1919.788376]  [<ffffffff815648de>] regmap_lock_mutex+0xe/0x10
  Jul  3 14:54:52 raven kernel: [ 1919.788379]  [<ffffffff81569544>] regcache_mark_dirty+0x14/0x30
  Jul  3 14:54:52 raven kernel: [ 1919.788386]  [<ffffffffc0524767>] hda_call_codec_resume+0x27/0x120 [snd_hda_codec]
  Jul  3 14:54:52 raven kernel: [ 1919.788392]  [<ffffffffc0524ba5>] hda_codec_runtime_resume+0x35/0x50 [snd_hda_codec]
  Jul  3 14:54:52 raven kernel: [ 1919.788395]  [<ffffffff81558303>] __rpm_callback+0x33/0x70
  Jul  3 14:54:52 raven kernel: [ 1919.788401]  [<ffffffffc0524b70>] ? snd_hda_add_imux_item+0x120/0x120 [snd_hda_codec]
  Jul  3 14:54:52 raven kernel: [ 1919.788403]  [<ffffffff81558364>] rpm_callback+0x24/0x80
  Jul  3 14:54:52 raven kernel: [ 1919.788409]  [<ffffffffc0524b70>] ? snd_hda_add_imux_item+0x120/0x120 [snd_hda_codec]
  Jul  3 14:54:52 raven kernel: [ 1919.788412]  [<ffffffff81558b27>] rpm_resume+0x497/0x6a0
  Jul  3 14:54:52 raven kernel: [ 1919.788416]  [<ffffffff810c3ca0>] ? wake_atomic_t_function+0x60/0x60
  Jul  3 14:54:52 raven kernel: [ 1919.788419]  [<ffffffff815595be>] __pm_runtime_resume+0x4e/0x70
  Jul  3 14:54:52 raven kernel: [ 1919.788424]  [<ffffffffc04e298b>] snd_hdac_power_up_pm+0x3b/0x60 [snd_hda_core]
  Jul  3 14:54:52 raven kernel: [ 1919.788430]  [<ffffffffc05235ee>] codec_exec_verb+0x5e/0x120 [snd_hda_codec]
  Jul  3 14:54:52 raven kernel: [ 1919.788434]  [<ffffffffc04e2037>] snd_hdac_exec_verb+0x17/0x40 [snd_hda_core]
  Jul  3 14:54:52 raven kernel: [ 1919.788439]  [<ffffffffc04e3c0d>] hda_reg_write.part.2+0x10d/0x270 [snd_hda_core]
  Jul  3 14:54:52 raven kernel: [ 1919.788443]  [<ffffffffc04e3d87>] hda_reg_write+0x17/0x20 [snd_hda_core]
  Jul  3 14:54:52 raven kernel: [ 1919.788446]  [<ffffffff8156753b>] _regmap_write+0x6b/0x100
  Jul  3 14:54:52 raven kernel: [ 1919.788449]  [<ffffffff81568b9c>] regmap_write+0x3c/0x60
  Jul  3 14:54:52 raven kernel: [ 1919.788454]  [<ffffffffc04e3e5a>] snd_hdac_regmap_write_raw+0x2a/0xc0 [snd_hda_core]
  Jul  3 14:54:52 raven kernel: [ 1919.788458]  [<ffffffffc0636696>] do_automute.constprop.39+0x126/0x190 [snd_hda_codec_generic]
  Jul  3 14:54:52 raven kernel: [ 1919.788462]  [<ffffffffc06367b1>] snd_hda_gen_update_outputs+0xb1/0x130 [snd_hda_codec_generic]
  Jul  3 14:54:52 raven kernel: [ 1919.788465]  [<ffffffffc063688e>] call_update_outputs+0x5e/0x60 [snd_hda_codec_generic]
  Jul  3 14:54:52 raven kernel: [ 1919.788469]  [<ffffffffc06368fb>] snd_hda_gen_hp_automute+0x6b/0x70 [snd_hda_codec_generic]
  Jul  3 14:54:52 raven kernel: [ 1919.788472]  [<ffffffffc0636925>] call_hp_automute+0x25/0x30 [snd_hda_codec_generic]
  Jul  3 14:54:52 raven kernel: [ 1919.788479]  [<ffffffffc0528205>] call_jack_callback.isra.1+0x25/0xa0 [snd_hda_codec]
  Jul  3 14:54:52 raven kernel: [ 1919.788485]  [<ffffffffc0528607>] snd_hda_jack_unsol_event+0x67/0x80 [snd_hda_codec]
  Jul  3 14:54:52 raven kernel: [ 1919.788491]  [<ffffffffc0522077>] hda_codec_unsol_event+0x17/0x20 [snd_hda_codec]
  Jul  3 14:54:52 raven kernel: [ 1919.788495]  [<ffffffffc04e1323>] process_unsol_events+0x63/0x70 [snd_hda_core]
  Jul  3 14:54:52 raven kernel: [ 1919.788498]  [<ffffffff8109a2c5>] process_one_work+0x165/0x480
  Jul  3 14:54:52 raven kernel: [ 1919.788500]  [<ffffffff8109a62b>] worker_thread+0x4b/0x4c0
  Jul  3 14:54:52 raven kernel: [ 1919.788503]  [<ffffffff8109a5e0>] ? process_one_work+0x480/0x480
  Jul  3 14:54:52 raven kernel: [ 1919.788505]  [<ffffffff810a0808>] kthread+0xd8/0xf0
  Jul  3 14:54:52 raven kernel: [ 1919.788507]  [<ffffffff810a0730>] ? kthread_create_on_node+0x1e0/0x1e0
  Jul  3 14:54:52 raven kernel: [ 1919.788509]  [<ffffffff81827a4f>] ret_from_fork+0x3f/0x70
  Jul  3 14:54:52 raven kernel: [ 1919.788511]  [<ffffffff810a0730>] ? kthread_create_on_node+0x1e0/0x1e0

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-28-generic 4.4.0-28.47
  ProcVersionSignature: Ubuntu 4.4.0-28.47-generic 4.4.13
  Uname: Linux 4.4.0-28-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  shevek     2968 F.... pulseaudio
   /dev/snd/controlC1:  shevek     2968 F.... pulseaudio
  CurrentDesktop: XFCE
  Date: Sun Jul  3 16:07:57 2016
  HibernationDevice: RESUME=UUID=22fd2208-7557-432d-bbff-95dd97905323
  InstallationDate: Installed on 2015-05-18 (412 days ago)
  InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422.1)
  MachineType: LENOVO 20CKCT01WW
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-28-generic.efi.signed root=/dev/mapper/xubuntu--vg-root ro noprompt persistent quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-28-generic N/A
   linux-backports-modules-4.4.0-28-generic  N/A
   linux-firmware                            1.157.1
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-06-23 (10 days ago)
  dmi.bios.date: 08/20/2015
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N11ET34W (1.10 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20CKCT01WW
  dmi.board.vendor: LENOVO
  dmi.board.version: 0B98417 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: dmi:bvnLENOVO:bvrN11ET34W(1.10):bd08/20/2015:svnLENOVO:pn20CKCT01WW:pvrThinkPadT550:rvnLENOVO:rn20CKCT01WW:rvr0B98417WIN:cvnLENOVO:ct10:cvrNone:
  dmi.product.name: 20CKCT01WW
  dmi.product.version: ThinkPad T550
  dmi.sys.vendor: LENOVO

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