ip6_tunnel: ¬ xmit: Local address not yet configured! ip6_tunnel: ¬ xmit: Local address not yet configured! BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 194s! Showing busy workqueues and worker pools: workqueue events: flags=0x0 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=16/256 in-flight: 6719:rtc_timer_do_work pending: bpf_prog_free_deferred, bpf_prog_free_deferred, destroy_super_work, destroy_super_work, destroy_super_work, key_garbage_collector, bpf_prog_free_deferred, proc_cleanup_work, proc_cleanup_work, proc_cleanup_work, proc_cleanup_work, proc_cleanup_work, proc_cleanup_work, proc_cleanup_work, free_obj_work workqueue events_power_efficient: flags=0x80 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=39/256 pending: sync_cmos_clock, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, ioc_release_fn, check_lifetime, ioc_release_fn workqueue lru-add-drain: flags=0x8 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 pending: lru_add_drain_per_cpu BAR(24177) workqueue cgroup_destroy: flags=0x0 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 pending: css_release_work_fn delayed: css_release_work_fn workqueue vmstat: flags=0xc pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 pending: vmstat_update workqueue dm_bufio_cache: flags=0x8 pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 pending: work_fn workqueue ipv6_addrconf: flags=0x40008 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 pending: addrconf_verify_work pool 2: cpus=1 node=0 flags=0x0 nice=0 hung=194s workers=4 idle: 18 22554 2460 INFO: task syz-executor.5:24177 blocked for more than 140 seconds. Not tainted 4.9.191+ #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D26344 24177 3796 0x00000004 0000000000000087 ffff8801d1c22f80 0000000000000000 ffff8801db721000 ffff8801c7e217c0 ffff8801db721018 ffff8801a04079e0 ffffffff8281ac0e 0000000000000000 00000000000001ae 0000000000000002 ffff8801db7218f0 Call Trace: [<000000008e434e97>] schedule+0x92/0x1c0 kernel/sched/core.c:3546 [<00000000707ab0bf>] schedule_timeout+0x766/0xe50 kernel/time/timer.c:1771 [<00000000ae210bf2>] do_wait_for_common kernel/sched/completion.c:75 [inline] [<00000000ae210bf2>] __wait_for_common kernel/sched/completion.c:93 [inline] [<00000000ae210bf2>] wait_for_common+0x2c6/0x4d0 kernel/sched/completion.c:101 [<00000000ed8d7903>] wait_for_completion+0x18/0x20 kernel/sched/completion.c:122 [<0000000038856d13>] flush_work+0x3d2/0x720 kernel/workqueue.c:2877 [<000000000c05b225>] lru_add_drain_all+0x2ba/0x3e0 mm/swap.c:715 [<000000008b237c2b>] do_mlock+0x8e/0x5d0 mm/mlock.c:674 [<00000000b935be66>] SYSC_mlock2 mm/mlock.c:727 [inline] [<00000000b935be66>] SyS_mlock2+0x4e/0x70 mm/mlock.c:717 [<00000000071199a4>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<0000000068e939ca>] 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: [<00000000ca2faf3d>] check_hung_uninterruptible_tasks kernel/hung_task.c:169 [inline] #0: (rcu_read_lock){......}, at: [<00000000ca2faf3d>] watchdog+0x14b/0xaf0 kernel/hung_task.c:263 #1: (tasklist_lock){.+.+..}, at: [<000000008a54f963>] debug_show_all_locks+0x7f/0x21f kernel/locking/lockdep.c:4336 2 locks held by getty/2025: #0: (&tty->ldisc_sem){++++++}, at: [<00000000241cab18>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376 #1: (&ldata->atomic_read_lock){+.+...}, at: [<00000000c7a9843b>] n_tty_read+0x1fe/0x1820 drivers/tty/n_tty.c:2156 2 locks held by syz-executor.5/24177: #0: (lock#2){+.+...}, at: [<00000000de0e5d19>] lru_add_drain_all+0x34/0x3e0 mm/swap.c:696 #1: (cpu_hotplug.dep_map){++++++}, at: [<0000000069269780>] get_online_cpus+0x32/0x90 kernel/cpu.c:254 1 lock held by syz-executor.5/24239: #0: (lock#2){+.+...}, at: [<00000000de0e5d19>] lru_add_drain_all+0x34/0x3e0 mm/swap.c:696 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 24 Comm: khungtaskd Not tainted 4.9.191+ #0 ffff8801d98d7cc8 ffffffff81b67171 0000000000000000 0000000000000000 0000000000000000 ffffffff81099f01 dffffc0000000000 ffff8801d98d7d00 ffffffff81b7240c 0000000000000000 0000000000000000 0000000000000000 Call Trace: [<000000007ee84558>] __dump_stack lib/dump_stack.c:15 [inline] [<000000007ee84558>] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [<00000000c88267e8>] nmi_cpu_backtrace.cold+0x47/0x87 lib/nmi_backtrace.c:99 [<00000000c4bd330c>] nmi_trigger_cpumask_backtrace+0x124/0x155 lib/nmi_backtrace.c:60 [<00000000847eeedb>] arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:37 [<000000009190a565>] trigger_all_cpu_backtrace include/linux/nmi.h:58 [inline] [<000000009190a565>] check_hung_task kernel/hung_task.c:126 [inline] [<000000009190a565>] check_hung_uninterruptible_tasks kernel/hung_task.c:183 [inline] [<000000009190a565>] watchdog+0x670/0xaf0 kernel/hung_task.c:263 [<00000000ab65745c>] kthread+0x278/0x310 kernel/kthread.c:211 [<000000005312b677>] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:375 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 6719 Comm: kworker/1:3 Not tainted 4.9.191+ #0 Workqueue: events rtc_timer_do_workc task: 00000000da9fd797 task.stack: 00000000828c98a2 RIP: 0010:[] c [<000000005eb270dc>] trace_hardirqs_off_caller+0x144/0x290 kernel/locking/lockdep.c:2772 RSP: 0018:ffff8801c4af7938 EFLAGS: 00000046 RAX: dffffc0000000000 RBX: ffff8801c7e217c0 RCX: 0000000000000000 RDX: 1ffff10038fc4405 RSI: 0000000000000000 RDI: ffff8801c7e22028 RBP: ffff8801c4af7950 R08: 0000000000000001 R09: ffff8801c7e220e0 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff8282a6d5 R13: ffff8801c7e217c0 R14: 0000000000000001 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fba7aed0f80 CR3: 00000001d6e21000 CR4: 00000000001606b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Stack: 0000000000000000c ffff8801d61e1670c 0000000000000282c ffff8801c4af7960c ffffffff8120675dc ffff8801c4af7988c ffffffff8282a6d5c ffff8801c4af7990c ffff8801d61e1670c 0000000000000292c ffff8801c4af79c0c ffffffff811f393ec Call Trace: [<00000000d6afeef8>] trace_hardirqs_off+0xd/0x10 kernel/locking/lockdep.c:2781 [<000000003052154f>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] [<000000003052154f>] _raw_spin_lock_irqsave+0x25/0x70 kernel/locking/spinlock.c:159 [<000000000b0d8395>] __wake_up+0x1e/0x50 kernel/sched/wait.c:94 [<0000000041d2e8ec>] rtc_handle_legacy_irq+0x12c/0x190 drivers/rtc/interface.c:523 [<000000001b69bf51>] rtc_uie_update_irq+0x20/0x30 drivers/rtc/interface.c:550 [<000000000fab4b42>] rtc_timer_do_work+0x1fe/0x600 drivers/rtc/interface.c:881 [<0000000080a0fde3>] process_one_work+0x88b/0x1600 kernel/workqueue.c:2114 [<0000000017bbacc3>] worker_thread+0x5df/0x11d0 kernel/workqueue.c:2251 [<00000000ab65745c>] kthread+0x278/0x310 kernel/kthread.c:211 [<000000005312b677>] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:375 Code: c8d cbb c68 c08 c00 c00 c48 cb8 c00 c00 c00 c00 c00 cfc cff cdf cc7 c83 c78 c08 c00 c00 c00 c00 c00 c00 c48 c89 cfa c48 cc1 cea c03 c80 c3c c02 c00 c0f c85 c27 c01 c00 c00 c<48> c8d cbb c58 c08 c00 c00 c4c c89 ca3 c68 c08 c00 c00 c48 cb8 c00 c00 c00 c00 c00 c