ip6_tunnel: ip6tnl1 xmit: Local address not yet configured! INFO: task kworker/dying:5 blocked for more than 140 seconds. Not tainted 4.9.168+ #40 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/dying D27768 5 2 0x80000000 ffff8801da605f00 0000000000000000 ffff8801db621000 ffff8801a27c5f00 ffff8801db621018 ffff8801da67f8c0 ffffffff8280028e 0000000000000246 ffff8801da605f00 0000000000000000 ffff8801db6218f0 1ffff1003b4cff07 Call Trace: [<0000000068838c87>] schedule+0x92/0x1c0 kernel/sched/core.c:3546 [<000000002d329855>] __rt_mutex_slowlock+0x99/0x290 kernel/locking/rtmutex.c:1221 [<000000002476ba6a>] rt_mutex_slowlock+0x199/0x4c0 kernel/locking/rtmutex.c:1293 [<00000000faca8cd4>] rt_mutex_fastlock kernel/locking/rtmutex.c:1439 [inline] [<00000000faca8cd4>] rt_mutex_lock+0x2d/0x40 kernel/locking/rtmutex.c:1499 [<000000003524264a>] process_notifier drivers/misc/uid_sys_stats.c:636 [inline] [<000000003524264a>] process_notifier+0x96/0x670 drivers/misc/uid_sys_stats.c:625 [<00000000d17d5dfd>] notifier_call_chain+0xb4/0x1d0 kernel/notifier.c:93 [<000000002fd5159c>] __blocking_notifier_call_chain kernel/notifier.c:317 [inline] [<000000002fd5159c>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] [<000000002fd5159c>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] [<000000002fd5159c>] blocking_notifier_call_chain+0x80/0xa0 kernel/notifier.c:325 [<00000000eb8b0719>] profile_task_exit+0x1f/0x30 kernel/profile.c:140 [<000000008add698e>] do_exit+0x90/0x2aa0 kernel/exit.c:744 [<00000000753e7a76>] kthread+0x22b/0x310 kernel/kthread.c:214 [<00000000cacc8183>] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:373 Showing all locks held in the system: 1 lock held by kworker/dying/5: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/22: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 2 locks held by khungtaskd/24: #0: (rcu_read_lock){......}, at: [<000000006c976aef>] check_hung_uninterruptible_tasks kernel/hung_task.c:168 [inline] #0: (rcu_read_lock){......}, at: [<000000006c976aef>] watchdog+0x13c/0xae0 kernel/hung_task.c:239 #1: (tasklist_lock){.+.+..}, at: [<0000000052f633bd>] debug_show_all_locks+0x7f/0x21f kernel/locking/lockdep.c:4339 1 lock held by kworker/dying/64: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by rsyslogd/1905: #0: (&f->f_pos_lock){+.+.+.}, at: [<00000000b8560764>] __fdget_pos+0xa8/0xd0 fs/file.c:782 2 locks held by getty/2032: #0: (&tty->ldisc_sem){++++++}, at: [<00000000aca5f68c>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377 #1: (&ldata->atomic_read_lock){+.+...}, at: [<000000004642cc6b>] n_tty_read+0x1fe/0x1820 drivers/tty/n_tty.c:2156 1 lock held by kworker/dying/2126: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/2132: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/2142: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/2176: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/2181: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by syz-executor.1/4264: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/9194: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/9197: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/9200: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/9791: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/9799: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/10343: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/10353: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/10984: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/11007: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/16437: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/16441: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/16452: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/16461: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/17037: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/17050: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/19800: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/19815: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/22824: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/22828: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by syz-executor.0/23570: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by syz-executor.2/24205: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/25507: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/25511: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/31591: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/7636: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by kworker/dying/7646: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by getty/18363: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by getty/18368: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by getty/18370: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by getty/18377: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by getty/18381: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by getty/18384: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by syz-executor.2/18539: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by syz-executor.2/18543: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by syz-executor.2/18589: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by syz-executor.2/18590: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by syz-executor.0/18540: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by syz-executor.0/18542: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by syz-executor.0/18556: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by syz-executor.0/18579: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by syz-executor.1/18583: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by syz-executor.1/18585: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 1 lock held by syz-executor.2/18591: #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:316 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain kernel/notifier.c:328 [inline] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<000000001b9f4ad8>] blocking_notifier_call_chain+0x6a/0xa0 kernel/notifier.c:325 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 24 Comm: khungtaskd Not tainted 4.9.168+ #40 ffff8801d98d7cc8 ffffffff81b4f5d1 0000000000000001 0000000000000000 0000000000000001 ffffffff81097401 dffffc0000000000 ffff8801d98d7d00 ffffffff81b5a86c 0000000000000001 0000000000000000 0000000000000001 Call Trace: [<000000005af3631b>] __dump_stack lib/dump_stack.c:15 [inline] [<000000005af3631b>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000e1aa7ce2>] nmi_cpu_backtrace.cold+0x47/0x87 lib/nmi_backtrace.c:99 [<00000000c27fc58a>] nmi_trigger_cpumask_backtrace+0x124/0x155 lib/nmi_backtrace.c:60 [<0000000026f406e3>] arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:37 [<0000000044494c4c>] trigger_all_cpu_backtrace include/linux/nmi.h:58 [inline] [<0000000044494c4c>] check_hung_task kernel/hung_task.c:125 [inline] [<0000000044494c4c>] check_hung_uninterruptible_tasks kernel/hung_task.c:182 [inline] [<0000000044494c4c>] watchdog+0x661/0xae0 kernel/hung_task.c:239 [<00000000e0e679ff>] kthread+0x278/0x310 kernel/kthread.c:211 [<00000000cacc8183>] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:373 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at pc 0xffffffff8280f302