ip6_tunnel: ip6tnl1 xmit: Local address not yet configured! ip6_tunnel: ip6tnl1 xmit: Local address not yet configured! ip6_tunnel: ip6tnl1 xmit: Local address not yet configured! ip6_tunnel: ip6tnl5 xmit: Local address not yet configured! ip6_tunnel: ip6tnl1 xmit: Local address not yet configured! INFO: task init:8021 blocked for more than 140 seconds. Not tainted 4.9.168+ #39 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. init D28872 8021 1 0x00000000 ffff8801a08717c0 ffff88017e53a680 ffff8801db621000 ffff8801ac2397c0 ffff8801db621018 ffff880186f5f5a0 ffffffff8280028e ffffffff810ab6fc ffff880186f5f540 00ffffff810aba10 ffff8801db6218f0 1ffff10030debea3 Call Trace: [<00000000e45abc1d>] schedule+0x92/0x1c0 kernel/sched/core.c:3546 [<000000006058d994>] schedule_timeout+0x766/0xe50 kernel/time/timer.c:1771 [<0000000080ce5011>] __down_common kernel/locking/semaphore.c:221 [inline] [<0000000080ce5011>] __down+0x190/0x2b0 kernel/locking/semaphore.c:238 [<000000003755459e>] down+0x64/0x90 kernel/locking/semaphore.c:61 [<00000000244e1bbf>] console_lock+0x2c/0x80 kernel/printk/printk.c:2217 [<000000003f4dc7b9>] console_device+0x1c/0xc0 kernel/printk/printk.c:2554 [<0000000008ea1a0e>] tty_lookup_driver drivers/tty/tty_io.c:2016 [inline] [<0000000008ea1a0e>] tty_open_by_driver drivers/tty/tty_io.c:2061 [inline] [<0000000008ea1a0e>] tty_open+0x796/0xe10 drivers/tty/tty_io.c:2138 [<000000008dea27ca>] chrdev_open+0x230/0x630 fs/char_dev.c:392 [<00000000233ffc66>] do_dentry_open+0x422/0xd20 fs/open.c:772 [<00000000dcc21f66>] vfs_open+0x105/0x230 fs/open.c:885 [<00000000eaa169b7>] do_last fs/namei.c:3457 [inline] [<00000000eaa169b7>] path_openat+0xbf5/0x2f60 fs/namei.c:3581 [<00000000a9f333f3>] do_filp_open+0x1a1/0x280 fs/namei.c:3615 [<0000000088a46054>] do_sys_open+0x2f0/0x610 fs/open.c:1078 [<000000000cca88fa>] SYSC_open fs/open.c:1096 [inline] [<000000000cca88fa>] SyS_open+0x2d/0x40 fs/open.c:1091 [<000000002a35a79c>] do_syscall_64+0x1ad/0x570 arch/x86/entry/common.c:285 [<00000000a1f2f48c>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Showing all locks held in the system: 2 locks held by khungtaskd/24: #0: (rcu_read_lock){......}, at: [<000000004af5e22e>] check_hung_uninterruptible_tasks kernel/hung_task.c:168 [inline] #0: (rcu_read_lock){......}, at: [<000000004af5e22e>] watchdog+0x13c/0xae0 kernel/hung_task.c:239 #1: (tasklist_lock){.+.+..}, at: [<000000008598f2ec>] debug_show_all_locks+0x7f/0x21f kernel/locking/lockdep.c:4339 1 lock held by rsyslogd/1912: #0: (&f->f_pos_lock){+.+.+.}, at: [<00000000360b3f9e>] __fdget_pos+0xa8/0xd0 fs/file.c:782 2 locks held by getty/2039: #0: (&tty->ldisc_sem){++++++}, at: [<0000000081f882fe>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377 #1: (&ldata->atomic_read_lock){+.+...}, at: [<00000000cdfd9084>] n_tty_read+0x1fe/0x1820 drivers/tty/n_tty.c:2156 1 lock held by init/8021: #0: (tty_mutex){+.+.+.}, at: [<00000000827cdae9>] tty_open_by_driver drivers/tty/tty_io.c:2060 [inline] #0: (tty_mutex){+.+.+.}, at: [<00000000827cdae9>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2138 1 lock held by init/8022: #0: (tty_mutex){+.+.+.}, at: [<00000000827cdae9>] tty_open_by_driver drivers/tty/tty_io.c:2060 [inline] #0: (tty_mutex){+.+.+.}, at: [<00000000827cdae9>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2138 1 lock held by init/8023: #0: (tty_mutex){+.+.+.}, at: [<00000000827cdae9>] tty_open_by_driver drivers/tty/tty_io.c:2060 [inline] #0: (tty_mutex){+.+.+.}, at: [<00000000827cdae9>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2138 1 lock held by init/8024: #0: (tty_mutex){+.+.+.}, at: [<00000000827cdae9>] tty_open_by_driver drivers/tty/tty_io.c:2060 [inline] #0: (tty_mutex){+.+.+.}, at: [<00000000827cdae9>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2138 1 lock held by init/8025: #0: (tty_mutex){+.+.+.}, at: [<00000000827cdae9>] tty_open_by_driver drivers/tty/tty_io.c:2060 [inline] #0: (tty_mutex){+.+.+.}, at: [<00000000827cdae9>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2138 1 lock held by init/8026: #0: (tty_mutex){+.+.+.}, at: [<00000000827cdae9>] tty_open_by_driver drivers/tty/tty_io.c:2060 [inline] #0: (tty_mutex){+.+.+.}, at: [<00000000827cdae9>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2138 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 24 Comm: khungtaskd Not tainted 4.9.168+ #39 ffff8801d98d7cc8 ffffffff81b4f5d1 0000000000000000 0000000000000000 0000000000000000 ffffffff81097401 dffffc0000000000 ffff8801d98d7d00 ffffffff81b5a86c 0000000000000000 0000000000000000 0000000000000000 Call Trace: [<0000000098c12be0>] __dump_stack lib/dump_stack.c:15 [inline] [<0000000098c12be0>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000a226cecd>] nmi_cpu_backtrace.cold+0x47/0x87 lib/nmi_backtrace.c:99 [<000000008f02b8da>] nmi_trigger_cpumask_backtrace+0x124/0x155 lib/nmi_backtrace.c:60 [<00000000725a5a49>] arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:37 [<000000009a67c68f>] trigger_all_cpu_backtrace include/linux/nmi.h:58 [inline] [<000000009a67c68f>] check_hung_task kernel/hung_task.c:125 [inline] [<000000009a67c68f>] check_hung_uninterruptible_tasks kernel/hung_task.c:182 [inline] [<000000009a67c68f>] watchdog+0x661/0xae0 kernel/hung_task.c:239 [<00000000c86b1a93>] kthread+0x278/0x310 kernel/kthread.c:211 [<00000000a81d2a23>] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:373 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 9308 Comm: syz-executor.0 Not tainted 4.9.168+ #39 task: 000000001b1697a6 task.stack: 00000000833643e4 RIP: 0033:[<000000000040158b>] c [<000000002d9ecd91>] 0x40158b RSP: 002b:00007fbd3b244690 EFLAGS: 00000282 RAX: 00000000a7d928f4 RBX: 000000000000000b RCX: 00000000004582f9 RDX: 0000000000000000 RSI: 00007fbd3b2446c0 RDI: 000000000000000b RBP: 12c075ed335d2d44 R08: 0000000400000003 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 330cd7b1b42f6014 R13: 3b0287e88cb4aef8 R14: 940a34db19eecb64 R15: 2fbf590fb1b28d7f FS: 00007fbd3b245700(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000013613e0 CR3: 00000001d6d95000 CR4: 00000000001606b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600