[Bug 1688920] Re: INFO: task systemd-udevd:326 blocked for more than 120 seconds.

[Bug Watch Updater]

** Changed in: systemd
       Status: New => Fix Released

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Title:
  INFO: task systemd-udevd:326 blocked for more than 120 seconds.

Status in systemd:
  Fix Released
Status in systemd package in Ubuntu:
  New

Bug description:
  dmesg:
  [  605.178422] INFO: task systemd-udevd:326 blocked for more than 120 seconds.
  [  605.178434]       Not tainted 4.11.0-041100rc8-generic #201704232131
  [  605.178437] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  [  605.178442] systemd-udevd   D    0   326      1 0x00000104
  [  605.178449] Call Trace:
  [  605.178467]  __schedule+0x3c6/0x8c0
  [  605.178474]  schedule+0x36/0x80
  [  605.178479]  schedule_preempt_disabled+0xe/0x10
  [  605.178484]  __mutex_lock.isra.5+0x26d/0x4e0
  [  605.178492]  __mutex_lock_slowpath+0x13/0x20
  [  605.178497]  ? __mutex_lock_slowpath+0x13/0x20
  [  605.178501]  mutex_lock+0x2f/0x40
  [  605.178508]  __blkdev_get+0x121/0x440
  [  605.178513]  blkdev_get+0x12a/0x330
  [  605.178519]  blkdev_open+0x5b/0x70
  [  605.178523]  do_dentry_open+0x20a/0x310
  [  605.178528]  ? bd_acquire+0xd0/0xd0
  [  605.178533]  vfs_open+0x4e/0x80
  [  605.178540]  path_openat+0x623/0x1500
  [  605.178546]  ? kernfs_seq_stop_active+0x2b/0x30
  [  605.178552]  do_filp_open+0x99/0x110
  [  605.178558]  ? _crng_backtrack_protect+0x62/0x80
  [  605.178562]  ? __check_object_size+0x100/0x19d
  [  605.178567]  do_sys_open+0x130/0x220
  [  605.178571]  ? do_sys_open+0x130/0x220
  [  605.178576]  SyS_open+0x1e/0x20
  [  605.178582]  do_syscall_64+0x5b/0xc0
  [  605.178586]  entry_SYSCALL64_slow_path+0x25/0x25
  [  605.178590] RIP: 0033:0x7f4a8b59bd70
  [  605.178593] RSP: 002b:00007fff0a24e0b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
  [  605.178598] RAX: ffffffffffffffda RBX: 00007fff0a24e150 RCX: 00007f4a8b59bd70
  [  605.178600] RDX: 0000561d1157fd23 RSI: 00000000000a0800 RDI: 0000561d12af1c10
  [  605.178603] RBP: 00007fff0a24e600 R08: 0000561d1157f400 R09: 0000000000000000
  [  605.178605] R10: 0000561d12ab4e40 R11: 0000000000000246 R12: 00007fff0a24e260
  [  605.178607] R13: 0000561d12aa2010 R14: 0000561d12aaa0e0 R15: 00007fff0a24e130

  ProblemType: Bug
  DistroRelease: Ubuntu 17.04
  Package: systemd 232-21ubuntu3
  Uname: Linux 4.11.0-041100-generic x86_64
  ApportVersion: 2.20.4-0ubuntu4
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Sat May  6 17:13:05 2017
  InstallationDate: Installed on 2015-07-26 (650 days ago)
  InstallationMedia: Ubuntu-GNOME 15.10 "Wily Werewolf" - Alpha amd64 (20150723)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 530U3C/530U4C
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.11.0-041100-generic root=UUID=4f4435ca-b877-47a5-9065-3dd624c0514e ro rootflags=subvol=@ quiet splash vt.handoff=7
  SourcePackage: systemd
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/15/2013
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: P14AAJ
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: SAMSUNG_NP1234567890
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: FAB1
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP14AAJ:bd04/15/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn530U3C/530U4C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
  dmi.product.name: 530U3C/530U4C
  dmi.product.version: 0.1
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

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