ip6_tunnel: ‹ xmit: Local address not yet configured! ip6_tunnel: † xmit: Local address not yet configured! ip6_tunnel: † xmit: Local address not yet configured! ip6_tunnel: † xmit: Local address not yet configured! ip6_tunnel: m xmit: Local address not yet configured! INFO: task init:4366 blocked for more than 140 seconds. Not tainted 4.9.190+ #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. init D29000 4366 1 0x00000000 0000000000000087 ffff88017d438000 ffff8800af82d280 ffff8801db721000 ffff8800a03a8000 ffff8801db721018 ffff8800a729f758 ffffffff8281a10e 1ffff1000000000d 1ffff10014e53ed4 00ffe8ffffd0eed8 ffff8801db7218f0 Call Trace: [<0000000050187408>] schedule+0x92/0x1c0 kernel/sched/core.c:3546 [<00000000b160cd5a>] schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3579 [<00000000b5c454b3>] __mutex_lock_common kernel/locking/mutex.c:582 [inline] [<00000000b5c454b3>] mutex_lock_nested+0x38d/0x920 kernel/locking/mutex.c:621 [<00000000cde064a7>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline] [<00000000cde064a7>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140 [<000000009585d0a7>] chrdev_open+0x230/0x630 fs/char_dev.c:398 [<0000000086b08d91>] do_dentry_open+0x422/0xd20 fs/open.c:791 [<00000000afb7bb84>] vfs_open+0x105/0x230 fs/open.c:904 [<0000000095b421c9>] do_last fs/namei.c:3541 [inline] [<0000000095b421c9>] path_openat+0xbf5/0x2f60 fs/namei.c:3665 [<00000000b66d7aad>] do_filp_open+0x1a1/0x280 fs/namei.c:3699 [<000000001c6af595>] do_sys_open+0x2f0/0x610 fs/open.c:1097 [<000000006491bd2a>] SYSC_open fs/open.c:1115 [inline] [<000000006491bd2a>] SyS_open+0x2d/0x40 fs/open.c:1110 [<0000000038c93c7e>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<000000000f81d9d1>] 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: [<000000000828845c>] check_hung_uninterruptible_tasks kernel/hung_task.c:169 [inline] #0: (rcu_read_lock){......}, at: [<000000000828845c>] watchdog+0x14b/0xaf0 kernel/hung_task.c:263 #1: (tasklist_lock){.+.+..}, at: [<0000000001636ee9>] debug_show_all_locks+0x7f/0x21f kernel/locking/lockdep.c:4336 1 lock held by rsyslogd/1895: #0: (&f->f_pos_lock){+.+.+.}, at: [<00000000bed7f461>] __fdget_pos+0xa8/0xd0 fs/file.c:782 2 locks held by getty/2023: #0: (&tty->ldisc_sem){++++++}, at: [<00000000f6c49c83>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376 #1: (&ldata->atomic_read_lock){+.+...}, at: [<00000000fb211fc4>] n_tty_read+0x1fe/0x1820 drivers/tty/n_tty.c:2156 ip6_tunnel: ‹ xmit: Local address not yet configured! 1 lock held by init/4366: #0: (tty_mutex){+.+.+.}, at: [<00000000cde064a7>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline] #0: (tty_mutex){+.+.+.}, at: [<00000000cde064a7>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140 1 lock held by init/4367: #0: (tty_mutex){+.+.+.}, at: [<00000000cde064a7>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline] #0: (tty_mutex){+.+.+.}, at: [<00000000cde064a7>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140 1 lock held by init/4368: #0: (tty_mutex){+.+.+.}, at: [<00000000cde064a7>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline] #0: (tty_mutex){+.+.+.}, at: [<00000000cde064a7>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140 1 lock held by init/4369: #0: (tty_mutex){+.+.+.}, at: [<00000000cde064a7>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline] #0: (tty_mutex){+.+.+.}, at: [<00000000cde064a7>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140 1 lock held by init/4370: #0: (tty_mutex){+.+.+.}, at: [<00000000cde064a7>] tty_open_by_driver drivers/tty/tty_io.c:2062 [inline] #0: (tty_mutex){+.+.+.}, at: [<00000000cde064a7>] tty_open+0x3f9/0xe10 drivers/tty/tty_io.c:2140 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 24 Comm: khungtaskd Not tainted 4.9.190+ #0 ffff8801d98d7cc8 ffffffff81b66c51 0000000000000001 0000000000000000 0000000000000001 ffffffff81099a01 dffffc0000000000 ffff8801d98d7d00 ffffffff81b71eec 0000000000000001 0000000000000000 0000000000000001 Call Trace: [<000000002f2dba48>] __dump_stack lib/dump_stack.c:15 [inline] [<000000002f2dba48>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000fffdd425>] nmi_cpu_backtrace.cold+0x47/0x87 lib/nmi_backtrace.c:99 [<000000002f41f6d7>] nmi_trigger_cpumask_backtrace+0x124/0x155 lib/nmi_backtrace.c:60 [<0000000040f27f0e>] arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:37 [<000000008e89d4f0>] trigger_all_cpu_backtrace include/linux/nmi.h:58 [inline] [<000000008e89d4f0>] check_hung_task kernel/hung_task.c:126 [inline] [<000000008e89d4f0>] check_hung_uninterruptible_tasks kernel/hung_task.c:183 [inline] [<000000008e89d4f0>] watchdog+0x670/0xaf0 kernel/hung_task.c:263 [<000000000b0b4ff6>] kthread+0x278/0x310 kernel/kthread.c:211 [<000000002072f1a5>] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:375 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 7489 Comm: syz-executor.5 Not tainted 4.9.190+ #0 task: 000000002cb4b13a task.stack: 000000004aa7a0cc RIP: 0010:[] c [<000000001a244122>] nf_hook_slow+0x148/0x1f0 net/netfilter/core.c:374 RSP: 0018:ffff8801db607a78 EFLAGS: 00000206 RAX: 1ffff1003b6c0f51 RBX: ffff8801db607b80 RCX: ffff8800a7c04ff0 RDX: dffffc0000000000 RSI: ffffffff8240235f RDI: 0000000000000246 RBP: ffff8801db607b10 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: ffff8800af3a8640 R14: ffff8801db607aa8 R15: ffff88012b76fa80 FS: 00007fc858728700(0000) GS:ffff8801db600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020015038 CR3: 00000001aef12000 CR4: 00000000001606b0 DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Stack: 00000001a7c04740c 1ffff1003b6c0f51c 0000000041b58ab3c ffffffff82e851c6c ffffffff82402230c 1ffff1003b6c0f6cc 0000000000000000c 0000000000000246c ffffffff830d5a20c ffff8800a7c04740c ffff8800af3a86a0c ffff88012b76fa80c Call Trace: [<00000000e8e50e8c>] nf_hook_thresh include/linux/netfilter.h:191 [inline] [<00000000e8e50e8c>] NF_HOOK_THRESH include/linux/netfilter.h:230 [inline] [<00000000e8e50e8c>] NF_HOOK include/linux/netfilter.h:255 [inline] [<00000000e8e50e8c>] ip_rcv+0xbdf/0x1040 net/ipv4/ip_input.c:487 [<00000000cbee3f90>] __netif_receive_skb_core+0x1156/0x2990 net/core/dev.c:4289 [<0000000022eede42>] __netif_receive_skb+0x58/0x1c0 net/core/dev.c:4327 [<00000000753c8f6b>] process_backlog+0x1e8/0x610 net/core/dev.c:4952 [<00000000456cda01>] napi_poll net/core/dev.c:5256 [inline] [<00000000456cda01>] net_rx_action+0x3aa/0xdd0 net/core/dev.c:5321 [<00000000b5b4022a>] __do_softirq+0x22d/0x964 kernel/softirq.c:288 [<000000001f412205>] do_softirq_own_stack+0x1c/0x30 arch/x86/entry/entry_64.S:848 d [<000000009c903646>] do_softirq.part.0+0x62/0x70 kernel/softirq.c:332 [<000000007201c492>] do_softirq kernel/softirq.c:324 [inline] [<000000007201c492>] __local_bh_enable_ip+0xce/0xe0 kernel/softirq.c:185 [<00000000fa708e79>] local_bh_enable include/linux/bottom_half.h:31 [inline] [<00000000fa708e79>] rcu_read_unlock_bh include/linux/rcupdate.h:969 [inline] [<00000000fa708e79>] ip_finish_output2+0x6ea/0x1280 net/ipv4/ip_output.c:227 [<000000008f82981b>] ip_finish_output+0x3c4/0xce0 net/ipv4/ip_output.c:313 [<00000000babe7639>] NF_HOOK_COND include/linux/netfilter.h:246 [inline] [<00000000babe7639>] ip_output+0x1ec/0x5b0 net/ipv4/ip_output.c:401 [<000000004c375c94>] dst_output include/net/dst.h:507 [inline] [<000000004c375c94>] ip_local_out+0x9c/0x180 net/ipv4/ip_output.c:124 [<0000000073966346>] ip_send_skb+0x3e/0xc0 net/ipv4/ip_output.c:1490 [<0000000073192458>] udp_send_skb+0x87f/0xc60 net/ipv4/udp.c:837 [<000000002358dd05>] udp_sendmsg+0x1634/0x1c60 net/ipv4/udp.c:1061 [<00000000ad669138>] udpv6_sendmsg+0x12af/0x2430 net/ipv6/udp.c:1086 [<000000008aed5efa>] inet_sendmsg+0x202/0x4d0 net/ipv4/af_inet.c:766 [<0000000075161fc6>] sock_sendmsg_nosec net/socket.c:649 [inline] [<0000000075161fc6>] sock_sendmsg+0xbe/0x110 net/socket.c:659 [<00000000e59b29ed>] ___sys_sendmsg+0x387/0x8b0 net/socket.c:1983 [<000000000e4d0a5b>] __sys_sendmmsg+0x164/0x3d0 net/socket.c:2073 [<00000000c4a7438e>] SYSC_sendmmsg net/socket.c:2104 [inline] [<00000000c4a7438e>] SyS_sendmmsg+0x35/0x60 net/socket.c:2099 [<0000000038c93c7e>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<000000000f81d9d1>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Code: c75 c97 cb8 c01 c00 c00 c00 c89 c85 c6c cff cff cff ce8 c11 c00 cf2 cfe c48 c8b c85 c70 cff cff cff c48 cba c00 c00 c00 c00 c00 cfc cff cdf c48 cc7 c04 c10 c00 c00 c00 c00 c<8b> c85 c6c cff cff cff c48 c8b c4d cd0 c65 c48 c33 c0c c25 c28 c00 c00 c00 c0f c85 c