[ 12.229815][ T279] ip (279) used greatest stack depth: 23840 bytes left [ 12.229832][ T279] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 12.229834][ T279] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 279, name: ip [ 12.229836][ T279] preempt_count: 2, expected: 0 [ 12.229837][ T279] RCU nest depth: 0, expected: 0 [ 12.229838][ T279] locks held by ip/279: 5, last CPU#0: [ 12.229840][ T279] #0: ffffffff854127b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 12.229851][ T279] #1: ffffffff85579cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 12.229856][ T279] #2: ffffffff85579d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 12.229860][ T279] #3: ffffffff85499660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 12.229864][ T279] #4: ffffffff85499560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 12.229873][ T279] irq event stamp: 27186 [ 12.229874][ T279] hardirqs last enabled at (27185): [] __down_trylock_console_sem+0x86/0xa0 [ 12.229876][ T279] hardirqs last disabled at (27186): [] console_emit_next_record+0x3d4/0x4c0 [ 12.229878][ T279] softirqs last enabled at (26174): [] handle_softirqs+0x67c/0x900 [ 12.229881][ T279] softirqs last disabled at (26167): [] __irq_exit_rcu+0x145/0x1c0 [ 12.229883][ T279] Preemption disabled at: [ 12.229883][ T279] [<0000000000000000>] 0x0 [ 12.229890][ T279] CPU: 0 UID: 0 PID: 279 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 12.229894][ T279] Tainted: [W]=WARN [ 12.229895][ T279] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.229897][ T279] Call Trace: [ 12.229898][ T279] [ 12.229900][ T279] dump_stack_lvl+0x6f/0xa0 [ 12.229906][ T279] __might_resched.cold+0x1fe/0x2c1 [ 12.229910][ T279] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 12.229914][ T279] ? __kmalloc_noprof+0xdb/0x760 [ 12.229919][ T279] __kmalloc_noprof+0x443/0x760 [ 12.229921][ T279] ? alloc_buf.isra.0+0x4b/0x260 [ 12.229927][ T279] ? do_raw_spin_unlock+0x59/0x250 [ 12.229930][ T279] alloc_buf.isra.0+0x4b/0x260 [ 12.229933][ T279] put_chars+0x1e1/0x2f0 [ 12.229937][ T279] ? __send_to_port+0x420/0x420 [ 12.229938][ T279] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 12.229943][ T279] ? validate_chain+0x38b/0xc20 [ 12.229948][ T279] hvc_console_print+0x292/0x780 [ 12.229955][ T279] ? hvc_write+0x3a0/0x3a0 [ 12.229957][ T279] ? rcu_is_watching+0x16/0xd0 [ 12.229960][ T279] ? lock_acquire+0x13c/0x160 [ 12.229964][ T279] console_emit_next_record+0x22f/0x4c0 [ 12.229967][ T279] ? devkmsg_read+0x4b0/0x4b0 [ 12.229969][ T279] ? console_flush_one_record+0x106/0x710 [ 12.229972][ T279] ? rcu_is_watching+0x16/0xd0 [ 12.229975][ T279] ? lock_acquire+0x13c/0x160 [ 12.229978][ T279] console_flush_one_record+0x46f/0x710 [ 12.229983][ T279] ? console_emit_next_record+0x4c0/0x4c0 [ 12.229984][ T279] ? __lock_acquire+0x518/0xc20 [ 12.229989][ T279] console_unlock+0xee/0x1f0 [ 12.229992][ T279] ? console_flush_one_record+0x710/0x710 [ 12.229994][ T279] ? rcu_is_watching+0x16/0xd0 [ 12.229996][ T279] ? lock_acquire+0x60/0x160 [ 12.230000][ T279] ? __down_trylock_console_sem+0x5e/0xa0 [ 12.230002][ T279] ? vprintk_emit+0x320/0x3e0 [ 12.230005][ T279] vprintk_emit+0x37c/0x3e0 [ 12.230009][ T279] ? wake_up_klogd_work_func+0x90/0x90 [ 12.230012][ T279] ? __lock_acquire+0x518/0xc20 [ 12.230016][ T279] _printk+0xc7/0x100 [ 12.230019][ T279] ? snapshot_read.cold+0x21/0x21 [ 12.230022][ T279] ? do_raw_spin_lock+0x131/0x280 [ 12.230024][ T279] ? __rwlock_init+0x150/0x150 [ 12.230028][ T279] ? do_raw_spin_lock+0x131/0x280 [ 12.230031][ T279] do_exit.cold+0x82/0x9c [ 12.230035][ T279] ? exit_notify+0x890/0x890 [ 12.230036][ T279] ? __lock_release.isra.0+0x69/0x1a0 [ 12.230038][ T279] ? rcu_is_watching+0x16/0xd0 [ 12.230043][ T279] do_group_exit+0xb8/0x370 [ 12.230045][ T279] __x64_sys_exit_group+0x3c/0x50 [ 12.230047][ T279] x64_sys_call+0x1567/0x1570 [ 12.230050][ T279] do_syscall_64+0xff/0x530 [ 12.230054][ T279] ? exc_page_fault+0xee/0x100 [ 12.230056][ T279] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.230058][ T279] RIP: 0033:0x7fa09d2c01b8 [ 12.230061][ T279] Code: Unable to access opcode bytes at 0x7fa09d2c018e. [ 12.230062][ T279] RSP: 002b:00007ffc0e94b288 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 12.230064][ T279] RAX: ffffffffffffffda RBX: 00007fa09d3f0f88 RCX: 00007fa09d2c01b8 [ 12.230066][ T279] RDX: 00007fa09d00afc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 12.230066][ T279] RBP: 00007ffc0e94b2e0 R08: 0000000000000000 R09: 0000000000000000 [ 12.230067][ T279] R10: 00007ffc0e94b0a0 R11: 0000000000000246 R12: 0000000000000001 [ 12.230068][ T279] R13: 0000000000000000 R14: 00007fa09d3ef680 R15: 00007fa09d3f0fa0 [ 12.230075][ T279] [ 19.090447][ C1] tun0: no available key for peer 1, key-id: 0 [ 19.090483][ C1] [ 19.090484][ C1] ======================================================== [ 19.090485][ C1] WARNING: possible irq lock inversion dependency detected [ 19.090487][ C1] 7.2.0-virtme #1 Tainted: G W [ 19.090489][ C1] -------------------------------------------------------- [ 19.090489][ C1] kworker/u16:0/12 just changed the state of lock: [ 19.090490][ C1] ffffffff85499660 (console_owner){..-.}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 19.090503][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 19.090505][ C1] (fs_reclaim){+.+.}-{0:0} [ 19.090506][ C1] [ 19.090506][ C1] [ 19.090506][ C1] and interrupts could create inverse lock ordering between them. [ 19.090506][ C1] [ 19.090507][ C1] [ 19.090507][ C1] other info that might help us debug this: [ 19.090507][ C1] Possible interrupt unsafe locking scenario: [ 19.090507][ C1] [ 19.090508][ C1] CPU0 CPU1 [ 19.090508][ C1] ---- ---- [ 19.090509][ C1] lock(fs_reclaim); [ 19.090510][ C1] local_irq_disable(); [ 19.090510][ C1] lock(console_owner); [ 19.090511][ C1] lock(fs_reclaim); [ 19.090512][ C1] [ 19.090512][ C1] lock(console_owner); [ 19.090513][ C1] [ 19.090513][ C1] *** DEADLOCK *** [ 19.090513][ C1] [ 19.090513][ C1] locks held by kworker/u16:0/12: 11, last CPU#1: [ 19.090514][ C1] #0: ff11000008d39d40 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0xd9a/0x1560 [ 19.090520][ C1] #1: ffa00000000c7d10 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0xdfc/0x1560 [ 19.090523][ C1] #2: ffffffff85ce3740 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_dad_work+0x11a/0x930 [ 19.090528][ C1] #3: ffffffff85590b00 (rcu_read_lock){....}-{1:3}, at: ndisc_send_skb+0x175/0x1520 [ 19.090532][ C1] #4: ffffffff85590b00 (rcu_read_lock){....}-{1:3}, at: ip6_output+0x11d/0x7f0 [ 19.090535][ C1] #5: ffffffff85590b00 (rcu_read_lock){....}-{1:3}, at: process_backlog+0x3f1/0x14c0 [ 19.090540][ C1] #6: ffffffff85590b00 (rcu_read_lock){....}-{1:3}, at: ip_local_deliver_finish+0x2ba/0x610 [ 19.090545][ C1] #7: ff110000112f1d18 (slock-AF_INET/1){+.-.}-{3:3}, at: tcp_v4_rcv+0x1a81/0x2b70 [ 19.090550][ C1] #8: ffffffff85590b00 (rcu_read_lock){....}-{1:3}, at: ovpn_tcp_data_ready+0x62/0x390 [ovpn] [ 19.090556][ C1] #9: ffffffff85579cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 19.090559][ C1] #10: ffffffff85579d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 19.090563][ C1] [ 19.090563][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 19.090567][ C1] -> (fs_reclaim){+.+.}-{0:0} { [ 19.090570][ C1] HARDIRQ-ON-W at: [ 19.090571][ C1] __lock_acquire+0x388/0xc20 [ 19.090574][ C1] lock_acquire.part.0+0xd4/0x280 [ 19.090575][ C1] fs_reclaim_acquire+0xd5/0x120 [ 19.090578][ C1] __kmalloc_cache_noprof+0x6e/0x620 [ 19.090581][ C1] kthread_create_worker_on_node+0xea/0x210 [ 19.090583][ C1] workqueue_init+0x2a/0x680 [ 19.090587][ C1] kernel_init_freeable+0x2fe/0x630 [ 19.090590][ C1] kernel_init+0x21/0x150 [ 19.090592][ C1] ret_from_fork+0x474/0x6b0 [ 19.090596][ C1] ret_from_fork_asm+0x11/0x20 [ 19.090599][ C1] SOFTIRQ-ON-W at: [ 19.090599][ C1] __lock_acquire+0x388/0xc20 [ 19.090601][ C1] lock_acquire.part.0+0xd4/0x280 [ 19.090602][ C1] fs_reclaim_acquire+0xd5/0x120 [ 19.090603][ C1] __kmalloc_cache_noprof+0x6e/0x620 [ 19.090605][ C1] kthread_create_worker_on_node+0xea/0x210 [ 19.090606][ C1] workqueue_init+0x2a/0x680 [ 19.090607][ C1] kernel_init_freeable+0x2fe/0x630 [ 19.090609][ C1] kernel_init+0x21/0x150 [ 19.090610][ C1] ret_from_fork+0x474/0x6b0 [ 19.090611][ C1] ret_from_fork_asm+0x11/0x20 [ 19.090612][ C1] INITIAL USE at: [ 19.090613][ C1] __lock_acquire+0x388/0xc20 [ 19.090614][ C1] lock_acquire.part.0+0xd4/0x280 [ 19.090616][ C1] fs_reclaim_acquire+0xd5/0x120 [ 19.090617][ C1] __kmalloc_cache_noprof+0x6e/0x620 [ 19.090618][ C1] kthread_create_worker_on_node+0xea/0x210 [ 19.090620][ C1] workqueue_init+0x2a/0x680 [ 19.090621][ C1] kernel_init_freeable+0x2fe/0x630 [ 19.090622][ C1] kernel_init+0x21/0x150 [ 19.090623][ C1] ret_from_fork+0x474/0x6b0 [ 19.090625][ C1] ret_from_fork_asm+0x11/0x20 [ 19.090626][ C1] } [ 19.090626][ C1] ... key at: [] __fs_reclaim_map+0x0/0xbe0 [ 19.090630][ C1] ... acquired at: [ 19.090631][ C1] __lock_acquire+0x518/0xc20 [ 19.090632][ C1] lock_acquire.part.0+0xd4/0x280 [ 19.090633][ C1] fs_reclaim_acquire+0xd5/0x120 [ 19.090634][ C1] __kmalloc_noprof+0xd3/0x760 [ 19.090636][ C1] alloc_buf.isra.0+0x4b/0x260 [ 19.090639][ C1] put_chars+0x1e1/0x2f0 [ 19.090640][ C1] hvc_console_print+0x292/0x780 [ 19.090643][ C1] console_emit_next_record+0x22f/0x4c0 [ 19.090644][ C1] console_flush_one_record+0x46f/0x710 [ 19.090646][ C1] console_unlock+0xee/0x1f0 [ 19.090648][ C1] vprintk_emit+0x37c/0x3e0 [ 19.090649][ C1] dev_vprintk_emit+0x27f/0x2c0 [ 19.090653][ C1] dev_printk_emit+0xb9/0xee [ 19.090654][ C1] _dev_info+0xe2/0x116 [ 19.090656][ C1] __devm_rtc_register_device.cold+0xc3/0x3a8 [ 19.090659][ C1] cmos_do_probe+0x73b/0x98a [ 19.090660][ C1] platform_probe+0xfe/0x1f0 [ 19.090662][ C1] call_driver_probe+0x61/0x1c0 [ 19.090665][ C1] really_probe+0x199/0x760 [ 19.090666][ C1] __driver_probe_device+0x24f/0x440 [ 19.090668][ C1] driver_probe_device+0x4a/0xf0 [ 19.090669][ C1] __driver_attach+0x1b8/0x540 [ 19.090671][ C1] bus_for_each_dev+0x130/0x1e0 [ 19.090672][ C1] bus_add_driver+0x2c8/0x530 [ 19.090673][ C1] driver_register+0x1a3/0x390 [ 19.090675][ C1] __platform_driver_probe+0x13f/0x270 [ 19.090676][ C1] cmos_init+0x31/0x40 [ 19.090679][ C1] do_one_initcall+0x124/0x4f0 [ 19.090681][ C1] kernel_init_freeable+0x596/0x630 [ 19.090682][ C1] kernel_init+0x21/0x150 [ 19.090683][ C1] ret_from_fork+0x474/0x6b0 [ 19.090684][ C1] ret_from_fork_asm+0x11/0x20 [ 19.090686][ C1] [ 19.090686][ C1] -> (console_owner){..-.}-{0:0} { [ 19.090688][ C1] IN-SOFTIRQ-W at: [ 19.090688][ C1] __lock_acquire+0x388/0xc20 [ 19.090690][ C1] lock_acquire.part.0+0xd4/0x280 [ 19.090691][ C1] console_lock_spinning_enable+0x5c/0x60 [ 19.090693][ C1] console_emit_next_record+0x1d1/0x4c0 [ 19.090694][ C1] console_flush_one_record+0x46f/0x710 [ 19.090696][ C1] console_unlock+0xee/0x1f0 [ 19.090697][ C1] vprintk_emit+0x37c/0x3e0 [ 19.090699][ C1] _printk+0xc7/0x100 [ 19.090702][ C1] ovpn_recv.cold+0x7e/0x94 [ovpn] [ 19.090705][ C1] ovpn_tcp_rcv+0x274/0x9a0 [ovpn] [ 19.090707][ C1] __strp_recv+0x20f/0x1c20 [ 19.090710][ C1] __tcp_read_sock+0x1c7/0x850 [ 19.090712][ C1] strp_read_sock+0x20f/0x2b0 [ 19.090714][ C1] strp_data_ready+0x18e/0x2c0 [ 19.090716][ C1] ovpn_tcp_data_ready+0xf1/0x390 [ovpn] [ 19.090718][ C1] tcp_data_queue+0xd25/0x1fb0 [ 19.090720][ C1] tcp_rcv_established+0x66d/0x3910 [ 19.090722][ C1] tcp_v4_do_rcv+0x4f6/0xb90 [ 19.090723][ C1] tcp_v4_rcv+0x1caa/0x2b70 [ 19.090725][ C1] ip_protocol_deliver_rcu+0x82/0x350 [ 19.090726][ C1] ip_local_deliver_finish+0x36f/0x610 [ 19.090727][ C1] ip_local_deliver+0x184/0x4c0 [ 19.090729][ C1] ip_rcv+0xdc/0x3d0 [ 19.090730][ C1] __netif_receive_skb_one_core+0xfc/0x180 [ 19.090732][ C1] process_backlog+0x431/0x14c0 [ 19.090733][ C1] __napi_poll+0xa7/0x3b0 [ 19.090735][ C1] net_rx_action+0x513/0xf50 [ 19.090737][ C1] handle_softirqs+0x1d3/0x900 [ 19.090739][ C1] do_softirq+0xac/0xe0 [ 19.090740][ C1] __local_bh_enable_ip+0x118/0x150 [ 19.090741][ C1] __dev_queue_xmit+0x979/0x1b80 [ 19.090743][ C1] ip6_finish_output2+0x423/0x12a0 [ 19.090744][ C1] ip6_finish_output+0x646/0xda0 [ 19.090746][ C1] ip6_output+0x23f/0x7f0 [ 19.090747][ C1] ndisc_send_skb+0xba3/0x1520 [ 19.090748][ C1] addrconf_dad_completed+0x37e/0xe10 [ 19.090750][ C1] addrconf_dad_begin+0x2e1/0x540 [ 19.090752][ C1] addrconf_dad_work+0x170/0x930 [ 19.090753][ C1] process_one_work+0xe3e/0x1560 [ 19.090755][ C1] worker_thread+0x4f1/0xd60 [ 19.090756][ C1] kthread+0x367/0x460 [ 19.090758][ C1] ret_from_fork+0x474/0x6b0 [ 19.090759][ C1] ret_from_fork_asm+0x11/0x20 [ 19.090760][ C1] INITIAL USE at: [ 19.090761][ C1] } [ 19.090762][ C1] ... key at: [] console_owner_dep_map+0x0/0x60 [ 19.090765][ C1] ... acquired at: [ 19.090765][ C1] mark_lock+0x1d7/0xa00 [ 19.090767][ C1] mark_usage+0x42/0x170 [ 19.090768][ C1] __lock_acquire+0x388/0xc20 [ 19.090769][ C1] lock_acquire.part.0+0xd4/0x280 [ 19.090771][ C1] console_lock_spinning_enable+0x5c/0x60 [ 19.090772][ C1] console_emit_next_record+0x1d1/0x4c0 [ 19.090774][ C1] console_flush_one_record+0x46f/0x710 [ 19.090775][ C1] console_unlock+0xee/0x1f0 [ 19.090777][ C1] vprintk_emit+0x37c/0x3e0 [ 19.090778][ C1] _printk+0xc7/0x100 [ 19.090780][ C1] ovpn_recv.cold+0x7e/0x94 [ovpn] [ 19.090782][ C1] ovpn_tcp_rcv+0x274/0x9a0 [ovpn] [ 19.090784][ C1] __strp_recv+0x20f/0x1c20 [ 19.090786][ C1] __tcp_read_sock+0x1c7/0x850 [ 19.090787][ C1] strp_read_sock+0x20f/0x2b0 [ 19.090789][ C1] strp_data_ready+0x18e/0x2c0 [ 19.090790][ C1] ovpn_tcp_data_ready+0xf1/0x390 [ovpn] [ 19.090793][ C1] tcp_data_queue+0xd25/0x1fb0 [ 19.090794][ C1] tcp_rcv_established+0x66d/0x3910 [ 19.090796][ C1] tcp_v4_do_rcv+0x4f6/0xb90 [ 19.090797][ C1] tcp_v4_rcv+0x1caa/0x2b70 [ 19.090799][ C1] ip_protocol_deliver_rcu+0x82/0x350 [ 19.090800][ C1] ip_local_deliver_finish+0x36f/0x610 [ 19.090801][ C1] ip_local_deliver+0x184/0x4c0 [ 19.090803][ C1] ip_rcv+0xdc/0x3d0 [ 19.090804][ C1] __netif_receive_skb_one_core+0xfc/0x180 [ 19.090806][ C1] process_backlog+0x431/0x14c0 [ 19.090807][ C1] __napi_poll+0xa7/0x3b0 [ 19.090809][ C1] net_rx_action+0x513/0xf50 [ 19.090810][ C1] handle_softirqs+0x1d3/0x900 [ 19.090812][ C1] do_softirq+0xac/0xe0 [ 19.090813][ C1] __local_bh_enable_ip+0x118/0x150 [ 19.090814][ C1] __dev_queue_xmit+0x979/0x1b80 [ 19.090816][ C1] ip6_finish_output2+0x423/0x12a0 [ 19.090817][ C1] ip6_finish_output+0x646/0xda0 [ 19.090818][ C1] ip6_output+0x23f/0x7f0 [ 19.090820][ C1] ndisc_send_skb+0xba3/0x1520 [ 19.090821][ C1] addrconf_dad_completed+0x37e/0xe10 [ 19.090822][ C1] addrconf_dad_begin+0x2e1/0x540 [ 19.090824][ C1] addrconf_dad_work+0x170/0x930 [ 19.090826][ C1] process_one_work+0xe3e/0x1560 [ 19.090827][ C1] worker_thread+0x4f1/0xd60 [ 19.090829][ C1] kthread+0x367/0x460 [ 19.090830][ C1] ret_from_fork+0x474/0x6b0 [ 19.090831][ C1] ret_from_fork_asm+0x11/0x20 [ 19.090832][ C1] [ 19.090832][ C1] [ 19.090832][ C1] stack backtrace: [ 19.090835][ C1] CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 19.090838][ C1] Tainted: [W]=WARN [ 19.090839][ C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 19.090841][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 19.090844][ C1] Call Trace: [ 19.090845][ C1] [ 19.090847][ C1] dump_stack_lvl+0x6f/0xa0 [ 19.090851][ C1] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 19.090853][ C1] mark_lock_irq+0x989/0x9c0 [ 19.090855][ C1] ? add_lock_to_list+0x2c/0x1a0 [ 19.090857][ C1] mark_lock+0x1d7/0xa00 [ 19.090859][ C1] mark_usage+0x42/0x170 [ 19.090861][ C1] __lock_acquire+0x388/0xc20 [ 19.090863][ C1] lock_acquire.part.0+0xd4/0x280 [ 19.090864][ C1] ? console_lock_spinning_enable+0x40/0x60 [ 19.090866][ C1] ? rcu_is_watching+0x16/0xd0 [ 19.090870][ C1] ? lock_acquire+0x13c/0x160 [ 19.090872][ C1] console_lock_spinning_enable+0x5c/0x60 [ 19.090873][ C1] ? console_lock_spinning_enable+0x40/0x60 [ 19.090875][ C1] console_emit_next_record+0x1d1/0x4c0 [ 19.090877][ C1] ? devkmsg_read+0x4b0/0x4b0 [ 19.090879][ C1] ? console_flush_one_record+0x106/0x710 [ 19.090881][ C1] ? rcu_is_watching+0x16/0xd0 [ 19.090883][ C1] ? lock_acquire+0x13c/0x160 [ 19.090885][ C1] console_flush_one_record+0x46f/0x710 [ 19.090887][ C1] ? console_emit_next_record+0x4c0/0x4c0 [ 19.090889][ C1] ? __lock_acquire+0x518/0xc20 [ 19.090897][ C1] console_unlock+0xee/0x1f0 [ 19.090899][ C1] ? console_flush_one_record+0x710/0x710 [ 19.090901][ C1] ? rcu_is_watching+0x16/0xd0 [ 19.090902][ C1] ? lock_acquire+0x60/0x160 [ 19.090904][ C1] ? __down_trylock_console_sem+0x5e/0xa0 [ 19.090906][ C1] ? vprintk_emit+0x320/0x3e0 [ 19.090908][ C1] vprintk_emit+0x37c/0x3e0 [ 19.090910][ C1] ? wake_up_klogd_work_func+0x90/0x90 [ 19.090912][ C1] ? __lock_release.isra.0+0x69/0x1a0 [ 19.090914][ C1] _printk+0xc7/0x100 [ 19.090916][ C1] ? snapshot_read.cold+0x21/0x21 [ 19.090918][ C1] ? ___ratelimit+0x4e7/0xa00 [ 19.090921][ C1] ? ovpn_netdev_write+0x730/0x730 [ovpn] [ 19.090924][ C1] ? idr_get_free+0x830/0x830 [ 19.090927][ C1] ovpn_recv.cold+0x7e/0x94 [ovpn] [ 19.090930][ C1] ovpn_tcp_rcv+0x274/0x9a0 [ovpn] [ 19.090932][ C1] ? ovpn_tcp_write_space+0x2e0/0x2e0 [ovpn] [ 19.090935][ C1] ? __copy_skb_header+0xb7/0x510 [ 19.090938][ C1] ? ovpn_tcp_disconnect+0x10/0x10 [ovpn] [ 19.090940][ C1] ? sock_queue_err_skb+0xb0/0x680 [ 19.090942][ C1] __strp_recv+0x20f/0x1c20 [ 19.090945][ C1] __tcp_read_sock+0x1c7/0x850 [ 19.090947][ C1] ? strp_process+0xb0/0xb0 [ 19.090949][ C1] ? tcp_cleanup_rbuf+0x1c0/0x1c0 [ 19.090950][ C1] ? save_trace+0x68/0x280 [ 19.090952][ C1] ? mark_usage+0x61/0x170 [ 19.090954][ C1] strp_read_sock+0x20f/0x2b0 [ 19.090956][ C1] ? strp_stop+0x50/0x50 [ 19.090958][ C1] ? rcu_is_watching+0x16/0xd0 [ 19.090960][ C1] ? lock_acquire+0x13c/0x160 [ 19.090962][ C1] strp_data_ready+0x18e/0x2c0 [ 19.090964][ C1] ovpn_tcp_data_ready+0xf1/0x390 [ovpn] [ 19.090967][ C1] tcp_data_queue+0xd25/0x1fb0 [ 19.090969][ C1] ? tcp_data_ready+0x4a0/0x4a0 [ 19.090971][ C1] ? tcp_send_dupack+0xc40/0xc40 [ 19.090973][ C1] ? lockdep_hardirqs_on_prepare.part.0+0x9a/0x160 [ 19.090974][ C1] ? lockdep_hardirqs_on+0x91/0x130 [ 19.090976][ C1] ? ktime_get+0x18e/0x2d0 [ 19.090978][ C1] ? kvm_clock_get_cycles+0x19/0x30 [ 19.090982][ C1] tcp_rcv_established+0x66d/0x3910 [ 19.090984][ C1] ? down_read_nested+0x100/0x500 [ 19.090986][ C1] ? __tcp_check_space+0x600/0x600 [ 19.090988][ C1] ? tcp_v4_rcv+0x1a81/0x2b70 [ 19.090989][ C1] ? do_raw_spin_lock+0x131/0x280 [ 19.090991][ C1] tcp_v4_do_rcv+0x4f6/0xb90 [ 19.090993][ C1] tcp_v4_rcv+0x1caa/0x2b70 [ 19.090996][ C1] ? mark_usage+0x61/0x170 [ 19.090997][ C1] ? tcp_add_backlog+0x1e30/0x1e30 [ 19.090999][ C1] ? lock_acquire.part.0+0xd4/0x280 [ 19.091001][ C1] ? ip_local_deliver_finish+0x2ba/0x610 [ 19.091003][ C1] ip_protocol_deliver_rcu+0x82/0x350 [ 19.091005][ C1] ? process_backlog+0x3f1/0x14c0 [ 19.091007][ C1] ip_local_deliver_finish+0x36f/0x610 [ 19.091008][ C1] ip_local_deliver+0x184/0x4c0 [ 19.091010][ C1] ? ip_local_deliver_finish+0x610/0x610 [ 19.091012][ C1] ? ip_rcv_finish_core+0x6ed/0x14c0 [ 19.091014][ C1] ? process_backlog+0x3f1/0x14c0 [ 19.091016][ C1] ip_rcv+0xdc/0x3d0 [ 19.091017][ C1] ? ip_local_deliver+0x4c0/0x4c0 [ 19.091019][ C1] ? rcu_read_lock_any_held+0x3c/0x90 [ 19.091021][ C1] ? mark_usage+0x61/0x170 [ 19.091023][ C1] ? __lock_acquire+0x518/0xc20 [ 19.091024][ C1] ? trace_raw_output_rcu_invoke_kfree_bulk_callback+0x57/0x130 [ 19.091026][ C1] __netif_receive_skb_one_core+0xfc/0x180 [ 19.091028][ C1] ? lock_acquire.part.0+0xd4/0x280 [ 19.091030][ C1] ? process_backlog+0x3f1/0x14c0 [ 19.091032][ C1] ? __netif_receive_skb_list_core+0x9e0/0x9e0 [ 19.091034][ C1] ? rcu_is_watching+0x16/0xd0 [ 19.091036][ C1] process_backlog+0x431/0x14c0 [ 19.091039][ C1] __napi_poll+0xa7/0x3b0 [ 19.091041][ C1] net_rx_action+0x513/0xf50 [ 19.091043][ C1] ? __lock_acquire+0x518/0xc20 [ 19.091045][ C1] ? __napi_poll+0x3b0/0x3b0 [ 19.091048][ C1] ? ktime_get_update_offsets_now+0x2a8/0x490 [ 19.091050][ C1] ? mark_held_locks+0x40/0x70 [ 19.091052][ C1] handle_softirqs+0x1d3/0x900 [ 19.091054][ C1] ? _local_bh_enable+0xc0/0xc0 [ 19.091055][ C1] ? do_raw_spin_unlock+0x59/0x250 [ 19.091057][ C1] ? rcu_is_watching+0x16/0xd0 [ 19.091059][ C1] ? __dev_queue_xmit+0x964/0x1b80 [ 19.091061][ C1] do_softirq+0xac/0xe0 [ 19.091062][ C1] [ 19.091063][ C1] [ 19.091063][ C1] __local_bh_enable_ip+0x118/0x150 [ 19.091065][ C1] __dev_queue_xmit+0x979/0x1b80 [ 19.091067][ C1] ? __lock_acquire+0x518/0xc20 [ 19.091069][ C1] ? do_ipv6_getsockopt+0x1a30/0x2e80 [ 19.091071][ C1] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 19.091072][ C1] ? find_held_lock+0x2b/0x80 [ 19.091074][ C1] ? __lock_release.isra.0+0x69/0x1a0 [ 19.091075][ C1] ? __rwlock_init+0x150/0x150 [ 19.091077][ C1] ? mark_held_locks+0x40/0x70 [ 19.091078][ C1] ? lockdep_hardirqs_on+0x91/0x130 [ 19.091079][ C1] ? __local_bh_enable_ip+0xaa/0x150 [ 19.091081][ C1] ? __local_bh_enable_ip+0xaa/0x150 [ 19.091082][ C1] ? ___neigh_create+0x811/0x1070 [ 19.091085][ C1] ip6_finish_output2+0x423/0x12a0 [ 19.091087][ C1] ? ip6_dst_lookup+0x80/0x80 [ 19.091089][ C1] ? find_held_lock+0x2b/0x80 [ 19.091090][ C1] ? __lock_release.isra.0+0x69/0x1a0 [ 19.091092][ C1] ? ip6_mtu+0x15d/0x310 [ 19.091094][ C1] ip6_finish_output+0x646/0xda0 [ 19.091096][ C1] ip6_output+0x23f/0x7f0 [ 19.091098][ C1] ? ip6_finish_output+0xda0/0xda0 [ 19.091100][ C1] ? lock_acquire.part.0+0xd4/0x280 [ 19.091101][ C1] ? find_held_lock+0x2b/0x80 [ 19.091102][ C1] ? __lock_release.isra.0+0x69/0x1a0 [ 19.091104][ C1] ? __local_bh_enable_ip+0xaa/0x150 [ 19.091106][ C1] ndisc_send_skb+0xba3/0x1520 [ 19.091108][ C1] ? ndisc_recv_na+0xea0/0xea0 [ 19.091110][ C1] ? ndisc_alloc_skb+0x2da/0x490 [ 19.091111][ C1] ? __local_bh_enable_ip+0xaa/0x150 [ 19.091113][ C1] addrconf_dad_completed+0x37e/0xe10 [ 19.091115][ C1] ? lock_acquire.part.0+0xd4/0x280 [ 19.091116][ C1] ? addrconf_rs_timer+0x770/0x770 [ 19.091118][ C1] ? __lock_release.isra.0+0x69/0x1a0 [ 19.091120][ C1] ? __rwlock_init+0x150/0x150 [ 19.091121][ C1] ? mark_held_locks+0x40/0x70 [ 19.091123][ C1] ? addrconf_dad_begin+0x2e1/0x540 [ 19.091125][ C1] addrconf_dad_begin+0x2e1/0x540 [ 19.091127][ C1] ? lock_acquire.part.0+0xd4/0x280 [ 19.091128][ C1] ? addrconf_dad_completed+0xe10/0xe10 [ 19.091130][ C1] ? __lock_release.isra.0+0x69/0x1a0 [ 19.091131][ C1] ? __rwlock_init+0x150/0x150 [ 19.091133][ C1] ? mark_held_locks+0x40/0x70 [ 19.091135][ C1] addrconf_dad_work+0x170/0x930 [ 19.091137][ C1] ? addrconf_dad_begin+0x540/0x540 [ 19.091139][ C1] ? rcu_is_watching+0x16/0xd0 [ 19.091141][ C1] ? rcu_is_watching+0x16/0xd0 [ 19.091142][ C1] ? lock_acquire+0x13c/0x160 [ 19.091144][ C1] ? rcu_is_watching+0x16/0xd0 [ 19.091146][ C1] process_one_work+0xe3e/0x1560 [ 19.091149][ C1] ? __queue_delayed_work+0x470/0x470 [ 19.091150][ C1] ? lock_acquire.part.0+0xd4/0x280 [ 19.091153][ C1] worker_thread+0x4f1/0xd60 [ 19.091156][ C1] ? rescuer_thread+0x1340/0x1340 [ 19.091158][ C1] kthread+0x367/0x460 [ 19.091159][ C1] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 19.091162][ C1] ? kthread_affine_preferred+0x4c0/0x4c0 [ 19.091163][ C1] ret_from_fork+0x474/0x6b0 [ 19.091165][ C1] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 19.091167][ C1] ? __switch_to+0x5a3/0xe00 [ 19.091173][ C1] ? kthread_affine_preferred+0x4c0/0x4c0 [ 19.091175][ C1] ret_from_fork_asm+0x11/0x20 [ 19.091178][ C1] [ 19.091182][ C1] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 19.091183][ C1] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 12, name: kworker/u16:0 [ 19.091185][ C1] preempt_count: 103, expected: 0 [ 19.091185][ C1] RCU nest depth: 5, expected: 0 [ 19.091186][ C1] INFO: lockdep is turned off. [ 19.091187][ C1] irq event stamp: 24695 [ 19.091187][ C1] hardirqs last enabled at (24694): [] __down_trylock_console_sem+0x86/0xa0 [ 19.091190][ C1] hardirqs last disabled at (24695): [] console_emit_next_record+0x3d4/0x4c0 [ 19.091191][ C1] softirqs last enabled at (24616): [] __dev_queue_xmit+0x964/0x1b80 [ 19.091193][ C1] softirqs last disabled at (24617): [] do_softirq+0xac/0xe0 [ 19.091195][ C1] Preemption disabled at: [ 19.091195][ C1] [] __dev_queue_xmit+0x204/0x1b80 [ 19.091198][ C1] CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 19.091200][ C1] Tainted: [W]=WARN [ 19.091200][ C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 19.091201][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 19.091203][ C1] Call Trace: [ 19.091204][ C1] [ 19.091204][ C1] dump_stack_lvl+0x6f/0xa0 [ 19.091206][ C1] ? __dev_queue_xmit+0x204/0x1b80 [ 19.091208][ C1] __might_resched.cold+0x1fe/0x2c1 [ 19.091211][ C1] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 19.091214][ C1] ? nbcon_get_cpu_emergency_nesting+0xa/0x30 [ 19.091215][ C1] ? rcu_is_watching+0x16/0xd0 [ 19.091217][ C1] __kmalloc_noprof+0x443/0x760 [ 19.091219][ C1] ? __rwlock_init+0x150/0x150 [ 19.091221][ C1] ? alloc_buf.isra.0+0x4b/0x260 [ 19.091222][ C1] ? do_raw_spin_unlock+0x59/0x250 [ 19.091224][ C1] alloc_buf.isra.0+0x4b/0x260 [ 19.091226][ C1] put_chars+0x1e1/0x2f0 [ 19.091228][ C1] ? __send_to_port+0x420/0x420 [ 19.091229][ C1] ? mark_lock+0x1d7/0xa00 [ 19.091231][ C1] hvc_console_print+0x292/0x780 [ 19.091234][ C1] ? hvc_write+0x3a0/0x3a0 [ 19.091235][ C1] ? rcu_is_watching+0x16/0xd0 [ 19.091237][ C1] ? lock_acquire+0x13c/0x160 [ 19.091239][ C1] console_emit_next_record+0x22f/0x4c0 [ 19.091241][ C1] ? devkmsg_read+0x4b0/0x4b0 [ 19.091243][ C1] ? console_flush_one_record+0x106/0x710 [ 19.091245][ C1] ? rcu_is_watching+0x16/0xd0 [ 19.091246][ C1] ? lock_acquire+0x13c/0x160 [ 19.091248][ C1] console_flush_one_record+0x46f/0x710 [ 19.091250][ C1] ? console_emit_next_record+0x4c0/0x4c0 [ 19.091252][ C1] ? __lock_acquire+0x518/0xc20 [ 19.091254][ C1] console_unlock+0xee/0x1f0 [ 19.091256][ C1] ? console_flush_one_record+0x710/0x710 [ 19.091257][ C1] ? rcu_is_watching+0x16/0xd0 [ 19.091259][ C1] ? lock_acquire+0x60/0x160 [ 19.091261][ C1] ? __down_trylock_console_sem+0x5e/0xa0 [ 19.091262][ C1] ? vprintk_emit+0x320/0x3e0 [ 19.091264][ C1] vprintk_emit+0x37c/0x3e0 [ 19.091267][ C1] ? wake_up_klogd_work_func+0x90/0x90 [ 19.091268][ C1] ? __lock_release.isra.0+0x69/0x1a0 [ 19.091270][ C1] _printk+0xc7/0x100 [ 19.091272][ C1] ? snapshot_read.cold+0x21/0x21 [ 19.091274][ C1] ? ___ratelimit+0x4e7/0xa00 [ 19.091276][ C1] ? ovpn_netdev_write+0x730/0x730 [ovpn] [ 19.091278][ C1] ? idr_get_free+0x830/0x830 [ 19.091280][ C1] ovpn_recv.cold+0x7e/0x94 [ovpn] [ 19.091283][ C1] ovpn_tcp_rcv+0x274/0x9a0 [ovpn] [ 19.091286][ C1] ? ovpn_tcp_write_space+0x2e0/0x2e0 [ovpn] [ 19.091288][ C1] ? __copy_skb_header+0xb7/0x510 [ 19.091290][ C1] ? ovpn_tcp_disconnect+0x10/0x10 [ovpn] [ 19.091292][ C1] ? sock_queue_err_skb+0xb0/0x680 [ 19.091294][ C1] __strp_recv+0x20f/0x1c20 [ 19.091297][ C1] __tcp_read_sock+0x1c7/0x850 [ 19.091299][ C1] ? strp_process+0xb0/0xb0 [ 19.091301][ C1] ? tcp_cleanup_rbuf+0x1c0/0x1c0 [ 19.091302][ C1] ? save_trace+0x68/0x280 [ 19.091304][ C1] ? mark_usage+0x61/0x170 [ 19.091306][ C1] strp_read_sock+0x20f/0x2b0 [ 19.091308][ C1] ? strp_stop+0x50/0x50 [ 19.091310][ C1] ? rcu_is_watching+0x16/0xd0 [ 19.091312][ C1] ? lock_acquire+0x13c/0x160 [ 19.091313][ C1] strp_data_ready+0x18e/0x2c0 [ 19.091315][ C1] ovpn_tcp_data_ready+0xf1/0x390 [ovpn] [ 19.091318][ C1] tcp_data_queue+0xd25/0x1fb0 [ 19.091320][ C1] ? tcp_data_ready+0x4a0/0x4a0 [ 19.091322][ C1] ? tcp_send_dupack+0xc40/0xc40 [ 19.091324][ C1] ? lockdep_hardirqs_on_prepare.part.0+0x9a/0x160 [ 19.091325][ C1] ? lockdep_hardirqs_on+0x91/0x130 [ 19.091327][ C1] ? ktime_get+0x18e/0x2d0 [ 19.091328][ C1] ? kvm_clock_get_cycles+0x19/0x30 [ 19.091330][ C1] tcp_rcv_established+0x66d/0x3910 [ 19.091332][ C1] ? down_read_nested+0x100/0x500 [ 19.091334][ C1] ? __tcp_check_space+0x600/0x600 [ 19.091335][ C1] ? tcp_v4_rcv+0x1a81/0x2b70 [ 19.091337][ C1] ? do_raw_spin_lock+0x131/0x280 [ 19.091339][ C1] tcp_v4_do_rcv+0x4f6/0xb90 [ 19.091341][ C1] tcp_v4_rcv+0x1caa/0x2b70 [ 19.091343][ C1] ? mark_usage+0x61/0x170 [ 19.091345][ C1] ? tcp_add_backlog+0x1e30/0x1e30 [ 19.091347][ C1] ? lock_acquire.part.0+0xd4/0x280 [ 19.091349][ C1] ? ip_local_deliver_finish+0x2ba/0x610 [ 19.091350][ C1] ip_protocol_deliver_rcu+0x82/0x350 [ 19.091352][ C1] ? process_backlog+0x3f1/0x14c0 [ 19.091354][ C1] ip_local_deliver_finish+0x36f/0x610 [ 19.091356][ C1] ip_local_deliver+0x184/0x4c0 [ 19.091358][ C1] ? ip_local_deliver_finish+0x610/0x610 [ 19.091359][ C1] ? ip_rcv_finish_core+0x6ed/0x14c0 [ 19.091362][ C1] ? process_backlog+0x3f1/0x14c0 [ 19.091363][ C1] ip_rcv+0xdc/0x3d0 [ 19.091365][ C1] ? ip_local_deliver+0x4c0/0x4c0 [ 19.091366][ C1] ? rcu_read_lock_any_held+0x3c/0x90 [ 19.091368][ C1] ? mark_usage+0x61/0x170 [ 19.091369][ C1] ? __lock_acquire+0x518/0xc20 [ 19.091371][ C1] ? trace_raw_output_rcu_invoke_kfree_bulk_callback+0x57/0x130 [ 19.091373][ C1] __netif_receive_skb_one_core+0xfc/0x180 [ 19.091374][ C1] ? lock_acquire.part.0+0xd4/0x280 [ 19.091376][ C1] ? process_backlog+0x3f1/0x14c0 [ 19.091378][ C1] ? __netif_receive_skb_list_core+0x9e0/0x9e0 [ 19.091380][ C1] ? rcu_is_watching+0x16/0xd0 [ 19.091382][ C1] process_backlog+0x431/0x14c0 [ 19.091385][ C1] __napi_poll+0xa7/0x3b0 [ 19.091387][ C1] net_rx_action+0x513/0xf50 [ 19.091389][ C1] ? __lock_acquire+0x518/0xc20 [ 19.091391][ C1] ? __napi_poll+0x3b0/0x3b0 [ 19.091394][ C1] ? ktime_get_update_offsets_now+0x2a8/0x490 [ 19.091396][ C1] ? mark_held_locks+0x40/0x70 [ 19.091398][ C1] handle_softirqs+0x1d3/0x900 [ 19.091400][ C1] ? _local_bh_enable+0xc0/0xc0 [ 19.091401][ C1] ? do_raw_spin_unlock+0x59/0x250 [ 19.091403][ C1] ? rcu_is_watching+0x16/0xd0 [ 19.091404][ C1] ? __dev_queue_xmit+0x964/0x1b80 [ 19.091406][ C1] do_softirq+0xac/0xe0 [ 19.091408][ C1] [ 19.091408][ C1] [ 19.091409][ C1] __local_bh_enable_ip+0x118/0x150 [ 19.091410][ C1] __dev_queue_xmit+0x979/0x1b80 [ 19.091412][ C1] ? __lock_acquire+0x518/0xc20 [ 19.091414][ C1] ? do_ipv6_getsockopt+0x1a30/0x2e80 [ 19.091416][ C1] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 19.091417][ C1] ? find_held_lock+0x2b/0x80 [ 19.091419][ C1] ? __lock_release.isra.0+0x69/0x1a0 [ 19.091420][ C1] ? __rwlock_init+0x150/0x150 [ 19.091422][ C1] ? mark_held_locks+0x40/0x70 [ 19.091423][ C1] ? lockdep_hardirqs_on+0x91/0x130 [ 19.091424][ C1] ? __local_bh_enable_ip+0xaa/0x150 [ 19.091426][ C1] ? __local_bh_enable_ip+0xaa/0x150 [ 19.091427][ C1] ? ___neigh_create+0x811/0x1070 [ 19.091430][ C1] ip6_finish_output2+0x423/0x12a0 [ 19.091432][ C1] ? ip6_dst_lookup+0x80/0x80 [ 19.091433][ C1] ? find_held_lock+0x2b/0x80 [ 19.091435][ C1] ? __lock_release.isra.0+0x69/0x1a0 [ 19.091436][ C1] ? ip6_mtu+0x15d/0x310 [ 19.091438][ C1] ip6_finish_output+0x646/0xda0 [ 19.091440][ C1] ip6_output+0x23f/0x7f0 [ 19.091442][ C1] ? ip6_finish_output+0xda0/0xda0 [ 19.091443][ C1] ? lock_acquire.part.0+0xd4/0x280 [ 19.091445][ C1] ? find_held_lock+0x2b/0x80 [ 19.091446][ C1] ? __lock_release.isra.0+0x69/0x1a0 [ 19.091448][ C1] ? __local_bh_enable_ip+0xaa/0x150 [ 19.091450][ C1] ndisc_send_skb+0xba3/0x1520 [ 19.091452][ C1] ? ndisc_recv_na+0xea0/0xea0 [ 19.091454][ C1] ? ndisc_alloc_skb+0x2da/0x490 [ 19.091455][ C1] ? __local_bh_enable_ip+0xaa/0x150 [ 19.091457][ C1] addrconf_dad_completed+0x37e/0xe10 [ 19.091459][ C1] ? lock_acquire.part.0+0xd4/0x280 [ 19.091460][ C1] ? addrconf_rs_timer+0x770/0x770 [ 19.091462][ C1] ? __lock_release.isra.0+0x69/0x1a0 [ 19.091464][ C1] ? __rwlock_init+0x150/0x150 [ 19.091465][ C1] ? mark_held_locks+0x40/0x70 [ 19.091467][ C1] ? addrconf_dad_begin+0x2e1/0x540 [ 19.091469][ C1] addrconf_dad_begin+0x2e1/0x540 [ 19.091471][ C1] ? lock_acquire.part.0+0xd4/0x280 [ 19.091472][ C1] ? addrconf_dad_completed+0xe10/0xe10 [ 19.091474][ C1] ? __lock_release.isra.0+0x69/0x1a0 [ 19.091475][ C1] ? __rwlock_init+0x150/0x150 [ 19.091477][ C1] ? mark_held_locks+0x40/0x70 [ 19.091479][ C1] addrconf_dad_work+0x170/0x930 [ 19.091481][ C1] ? addrconf_dad_begin+0x540/0x540 [ 19.091483][ C1] ? rcu_is_watching+0x16/0xd0 [ 19.091485][ C1] ? rcu_is_watching+0x16/0xd0 [ 19.091486][ C1] ? lock_acquire+0x13c/0x160 [ 19.091488][ C1] ? rcu_is_watching+0x16/0xd0 [ 19.091490][ C1] process_one_work+0xe3e/0x1560 [ 19.091493][ C1] ? __queue_delayed_work+0x470/0x470 [ 19.091494][ C1] ? lock_acquire.part.0+0xd4/0x280 [ 19.091497][ C1] worker_thread+0x4f1/0xd60 [ 19.091500][ C1] ? rescuer_thread+0x1340/0x1340 [ 19.091502][ C1] kthread+0x367/0x460 [ 19.091503][ C1] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 19.091504][ C1] ? kthread_affine_preferred+0x4c0/0x4c0 [ 19.091506][ C1] ret_from_fork+0x474/0x6b0 [ 19.091507][ C1] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 19.091509][ C1] ? __switch_to+0x5a3/0xe00 [ 19.091511][ C1] ? kthread_affine_preferred+0x4c0/0x4c0 [ 19.091512][ C1] ret_from_fork_asm+0x11/0x20 [ 19.091515][ C1] [ 19.465605][ C2] tun0: no available key for peer 5, key-id: 0 [ 19.527225][ C0] tun0: no available key for peer 6, key-id: 0 [ 24.944385][ T480] iperf3 (480) used greatest stack depth: 22800 bytes left [ 24.944403][ T480] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 24.944405][ T480] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 480, name: iperf3 [ 24.944407][ T480] preempt_count: 2, expected: 0 [ 24.944408][ T480] RCU nest depth: 0, expected: 0 [ 24.944409][ T480] INFO: lockdep is turned off. [ 24.944410][ T480] irq event stamp: 0 [ 24.944411][ T480] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [ 24.944416][ T480] hardirqs last disabled at (0): [] copy_process+0x1ccd/0x6240 [ 24.944422][ T480] softirqs last enabled at (0): [] copy_process+0x1d21/0x6240 [ 24.944424][ T480] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 24.944426][ T480] Preemption disabled at: [ 24.944426][ T480] [<0000000000000000>] 0x0 [ 24.944431][ T480] CPU: 0 UID: 0 PID: 480 Comm: iperf3 Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 24.944434][ T480] Tainted: [W]=WARN [ 24.944435][ T480] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 24.944437][ T480] Call Trace: [ 24.944438][ T480] [ 24.944440][ T480] dump_stack_lvl+0x6f/0xa0 [ 24.944445][ T480] __might_resched.cold+0x1fe/0x2c1 [ 24.944449][ T480] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 24.944452][ T480] ? prb_next_reserve_seq+0x2d0/0x2d0 [ 24.944454][ T480] ? rcu_is_watching+0x16/0xd0 [ 24.944458][ T480] __kmalloc_noprof+0x443/0x760 [ 24.944462][ T480] ? __rwlock_init+0x150/0x150 [ 24.944464][ T480] ? alloc_buf.isra.0+0x4b/0x260 [ 24.944468][ T480] ? do_raw_spin_unlock+0x59/0x250 [ 24.944470][ T480] alloc_buf.isra.0+0x4b/0x260 [ 24.944472][ T480] put_chars+0x1e1/0x2f0 [ 24.944474][ T480] ? prb_final_commit+0x50/0x50 [ 24.944476][ T480] ? __send_to_port+0x420/0x420 [ 24.944477][ T480] ? printk_get_next_message+0x240/0x650 [ 24.944480][ T480] hvc_console_print+0x292/0x780 [ 24.944484][ T480] ? hvc_write+0x3a0/0x3a0 [ 24.944485][ T480] ? do_raw_spin_lock+0x131/0x280 [ 24.944487][ T480] ? vsnprintf+0x668/0x1700 [ 24.944490][ T480] ? __rwlock_init+0x150/0x150 [ 24.944491][ T480] ? rcu_is_watching+0x16/0xd0 [ 24.944493][ T480] ? lock_acquire+0x13c/0x160 [ 24.944496][ T480] console_emit_next_record+0x22f/0x4c0 [ 24.944498][ T480] ? devkmsg_read+0x4b0/0x4b0 [ 24.944500][ T480] ? rcu_is_watching+0x16/0xd0 [ 24.944502][ T480] ? rcu_is_watching+0x16/0xd0 [ 24.944504][ T480] ? rcu_is_watching+0x16/0xd0 [ 24.944505][ T480] ? lock_acquire+0x13c/0x160 [ 24.944507][ T480] ? console_flush_one_record+0x111/0x710 [ 24.944509][ T480] console_flush_one_record+0x46f/0x710 [ 24.944511][ T480] ? console_emit_next_record+0x4c0/0x4c0 [ 24.944514][ T480] console_unlock+0xee/0x1f0 [ 24.944516][ T480] ? lock_acquire+0x13c/0x160 [ 24.944517][ T480] ? console_flush_one_record+0x710/0x710 [ 24.944519][ T480] ? rcu_is_watching+0x16/0xd0 [ 24.944520][ T480] ? lock_release+0x184/0x1f0 [ 24.944522][ T480] ? lock_acquire+0x60/0x160 [ 24.944523][ T480] ? __rcu_read_lock+0x30/0x70 [ 24.944525][ T480] ? __down_trylock_console_sem+0x5e/0xa0 [ 24.944527][ T480] ? vprintk_emit+0x320/0x3e0 [ 24.944529][ T480] vprintk_emit+0x37c/0x3e0 [ 24.944531][ T480] ? wake_up_klogd_work_func+0x90/0x90 [ 24.944534][ T480] _printk+0xc7/0x100 [ 24.944537][ T480] ? snapshot_read.cold+0x21/0x21 [ 24.944539][ T480] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 24.944542][ T480] ? do_raw_spin_lock+0x131/0x280 [ 24.944543][ T480] ? __rwlock_init+0x150/0x150 [ 24.944545][ T480] ? do_raw_spin_lock+0x131/0x280 [ 24.944547][ T480] do_exit.cold+0x82/0x9c [ 24.944550][ T480] ? exit_notify+0x890/0x890 [ 24.944553][ T480] __x64_sys_exit+0x42/0x50 [ 24.944554][ T480] x64_sys_call+0x156c/0x1570 [ 24.944556][ T480] do_syscall_64+0xff/0x530 [ 24.944559][ T480] ? exc_page_fault+0xee/0x100 [ 24.944560][ T480] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 24.944563][ T480] RIP: 0033:0x7f1f0e71cc49 [ 24.944565][ T480] Code: Unable to access opcode bytes at 0x7f1f0e71cc1f. [ 24.944566][ T480] RSP: 002b:00007f1f0dedbe60 EFLAGS: 00000246 ORIG_RAX: 000000000000003c [ 24.944569][ T480] RAX: ffffffffffffffda RBX: 00007f1f0dedc6c0 RCX: 00007f1f0e71cc49 [ 24.944570][ T480] RDX: 0000000000000000 RSI: 0000000000801000 RDI: 0000000000000000 [ 24.944571][ T480] RBP: 00007f1f0dedbf70 R08: 0000000000000001 R09: 00007f1f0dedc6c0 [ 24.944572][ T480] R10: 0000000000000008 R11: 0000000000000246 R12: 00007f1f0d6dc000 [ 24.944573][ T480] R13: 00007ffe2b1d6540 R14: 0000000000000002 R15: 00007ffe2b1d6647 [ 24.944575][ T480] [ 25.122717][ T365] tun3: deleting peer with id 12, reason 4 [ 25.123188][ T351] tun1: deleting peer with id 10, reason 4 [ 25.123549][ T386] tun6: deleting peer with id 15, reason 4 [ 25.123876][ T379] tun5: deleting peer with id 14, reason 4 [ 25.124493][ T358] tun2: deleting peer with id 11, reason 4 [ 25.124784][ T372] tun4: deleting peer with id 13, reason 4 [ 25.125076][ T388] tun0: deleting peer with id 6, reason 4 [ 25.128677][ T388] tun0: deleting peer with id 5, reason 4 [ 25.131464][ T388] tun0: deleting peer with id 4, reason 4 [ 25.137421][ T388] tun0: deleting peer with id 3, reason 4 [ 25.145439][ T388] tun0: deleting peer with id 2, reason 4 [ 25.153398][ T388] tun0: deleting peer with id 1, reason 4