ip6_tunnel: ip6tnl1 xmit: Local address not yet configured! BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 262s! INFO: task syz-executor.1:27575 blocked for more than 140 seconds. Showing busy workqueues and worker pools: workqueue events: flags=0x0 Not tainted 4.14.98+ #8 pwq 0: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.1 D27792 27575 10138 0x10000004 Call Trace: cpus=0 node=0 flags=0x0 nice=0 active=18/256 in-flight: 27505:rtc_timer_do_work pending: vmstat_shepherd, xfrm_state_gc_task, proc_cleanup_work, proc_cleanup_work, proc_cleanup_work schedule+0x92/0x1c0 kernel/sched/core.c:3490 , proc_cleanup_work, proc_cleanup_work, proc_cleanup_work, proc_cleanup_work, proc_cleanup_work schedule_timeout+0x736/0xe80 kernel/time/timer.c:1721 , proc_cleanup_work, proc_cleanup_work, proc_cleanup_work, bpf_prog_free_deferred, proc_cleanup_work , free_obj_work, key_garbage_collector workqueue events_power_efficient: flags=0x80 pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 pending: neigh_periodic_work, check_lifetime workqueue mm_percpu_wq: flags=0x8 do_wait_for_common kernel/sched/completion.c:91 [inline] __wait_for_common kernel/sched/completion.c:112 [inline] wait_for_common+0x29c/0x470 kernel/sched/completion.c:123 pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 pending: lru_add_drain_per_cpu BAR(27575) workqueue ipv6_addrconf: flags=0x40008 pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 pending: addrconf_verify_work pool 0: cpus=0 node=0 flush_work+0x3d2/0x710 kernel/workqueue.c:2885 flags=0x0 nice=0 hung=262s workers=4 idle: 16110 16081 16114 lru_add_drain_all_cpuslocked mm/swap.c:722 [inline] lru_add_drain_all_cpuslocked+0x2d5/0x420 mm/swap.c:691 lru_add_drain_all+0xf/0x20 mm/swap.c:730 SYSC_mlockall mm/mlock.c:802 [inline] SyS_mlockall+0x1e1/0x520 mm/mlock.c:790 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289 Showing all locks held in the system: 1 lock held by khungtaskd/23: #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x7c/0x21a kernel/locking/lockdep.c:4541 2 locks held by getty/1759: #0: (&tty->ldisc_sem){++++}, at: [] tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:275 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1f7/0x1700 drivers/tty/n_tty.c:2156 2 locks held by syz-executor.1/27575: #0: (cpu_hotplug_lock.rw_sem){++++}, at: [] get_online_cpus include/linux/cpu.h:138 [inline] #0: (cpu_hotplug_lock.rw_sem){++++}, at: [] lru_add_drain_all+0xa/0x20 mm/swap.c:729 #1: (lock#4){+.+.}, at: [] lru_add_drain_all_cpuslocked+0x6c/0x420 mm/swap.c:704 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 23 Comm: khungtaskd Not tainted 4.14.98+ #8 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xb9/0x10e lib/dump_stack.c:53 nmi_cpu_backtrace.cold+0x47/0x86 lib/nmi_backtrace.c:101 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 27505 Comm: kworker/0:0 Not tainted 4.14.98+ #8 Workqueue: events rtc_timer_do_work task: ffff88819f215e00 task.stack: ffff888091108000 RIP: 0010:strlen+0x16/0x90 lib/string.c:479 RSP: 0018:ffff88809110f8a8 EFLAGS: 00000806 RAX: dffffc0000000000 RBX: 1ffff11012221f38 RCX: 1ffffffff0702330 RDX: 1ffffffff0643db4 RSI: ffff8881d5c23888 RDI: ffffffff8321eda0 RBP: ffffffff8321eda0 R08: ffff8881d5c23890 R09: 0000000000000000 R10: 0000000000000246 R11: 0000000000000001 R12: 1ffff11012221f1e R13: 0000000000000000 R14: ffffffff836c0000 R15: ffff88809110f970 FS: 0000000000000000(0000) GS:ffff8881dba00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000001472308 CR3: 000000005b626005 CR4: 00000000001606b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: trace_event_get_offsets_lock include/trace/events/lock.h:39 [inline] perf_trace_lock+0xe1/0x4e0 include/trace/events/lock.h:39 trace_lock_release include/trace/events/lock.h:58 [inline] lock_release+0x4d8/0x730 kernel/locking/lockdep.c:4009 Code: 48 8b 04 24 e9 23 ff ff ff 66 90 66 2e 0f 1f 84 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 55 48 89 fd 48 c1 ea 03 53 <48> 83 ec 08 0f b6 04 02 48 89 fa 83 e2 07 38 d0 7f 04 84 c0 75