[ 11.110794][ T265] ip (265) used greatest stack depth: 23936 bytes left [ 11.110808][ T265] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.110810][ T265] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 265, name: ip [ 11.110812][ T265] preempt_count: 2, expected: 0 [ 11.110812][ T265] RCU nest depth: 0, expected: 0 [ 11.110813][ T265] locks held by ip/265: 5, last CPU#2: [ 11.110815][ T265] #0: ffffffffaea127b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 11.110826][ T265] #1: ffffffffaeb79cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.110832][ T265] #2: ffffffffaeb79d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.110836][ T265] #3: ffffffffaea99660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.110839][ T265] #4: ffffffffaea99560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.110843][ T265] irq event stamp: 37254 [ 11.110844][ T265] hardirqs last enabled at (37253): [] __down_trylock_console_sem+0x86/0xa0 [ 11.110846][ T265] hardirqs last disabled at (37254): [] console_emit_next_record+0x3d4/0x4c0 [ 11.110848][ T265] softirqs last enabled at (35970): [] netlink_release+0x17b/0xcf0 [ 11.110853][ T265] softirqs last disabled at (35968): [] netlink_release+0xd2/0xcf0 [ 11.110855][ T265] Preemption disabled at: [ 11.110856][ T265] [<0000000000000000>] 0x0 [ 11.110863][ T265] CPU: 2 UID: 0 PID: 265 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.110866][ T265] Tainted: [W]=WARN [ 11.110867][ T265] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.110869][ T265] Call Trace: [ 11.110870][ T265] [ 11.110872][ T265] dump_stack_lvl+0x6f/0xa0 [ 11.110878][ T265] __might_resched.cold+0x1fe/0x2c1 [ 11.110882][ T265] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.110887][ T265] ? __kmalloc_noprof+0xdb/0x760 [ 11.110892][ T265] __kmalloc_noprof+0x443/0x760 [ 11.110894][ T265] ? alloc_buf.isra.0+0x4b/0x260 [ 11.110899][ T265] ? do_raw_spin_unlock+0x59/0x250 [ 11.110902][ T265] alloc_buf.isra.0+0x4b/0x260 [ 11.110905][ T265] put_chars+0x1e1/0x2f0 [ 11.110908][ T265] ? __send_to_port+0x420/0x420 [ 11.110910][ T265] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 11.110914][ T265] ? validate_chain+0x38b/0xc20 [ 11.110919][ T265] hvc_console_print+0x292/0x780 [ 11.110926][ T265] ? hvc_write+0x3a0/0x3a0 [ 11.110928][ T265] ? rcu_is_watching+0x16/0xd0 [ 11.110930][ T265] ? lock_acquire+0x13c/0x160 [ 11.110934][ T265] console_emit_next_record+0x22f/0x4c0 [ 11.110938][ T265] ? devkmsg_read+0x4b0/0x4b0 [ 11.110940][ T265] ? console_flush_one_record+0x106/0x710 [ 11.110943][ T265] ? rcu_is_watching+0x16/0xd0 [ 11.110945][ T265] ? lock_acquire+0x13c/0x160 [ 11.110949][ T265] console_flush_one_record+0x46f/0x710 [ 11.110953][ T265] ? console_emit_next_record+0x4c0/0x4c0 [ 11.110955][ T265] ? __lock_acquire+0x518/0xc20 [ 11.110960][ T265] console_unlock+0xee/0x1f0 [ 11.110962][ T265] ? console_flush_one_record+0x710/0x710 [ 11.110964][ T265] ? rcu_is_watching+0x16/0xd0 [ 11.110966][ T265] ? lock_acquire+0x60/0x160 [ 11.110970][ T265] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.110971][ T265] ? vprintk_emit+0x320/0x3e0 [ 11.110975][ T265] vprintk_emit+0x37c/0x3e0 [ 11.110978][ T265] ? wake_up_klogd_work_func+0x90/0x90 [ 11.110982][ T265] ? __lock_acquire+0x518/0xc20 [ 11.110985][ T265] _printk+0xc7/0x100 [ 11.110989][ T265] ? snapshot_read.cold+0x21/0x21 [ 11.110991][ T265] ? do_raw_spin_lock+0x131/0x280 [ 11.110994][ T265] ? __rwlock_init+0x150/0x150 [ 11.110997][ T265] ? do_raw_spin_lock+0x131/0x280 [ 11.111000][ T265] do_exit.cold+0x82/0x9c [ 11.111004][ T265] ? exit_notify+0x890/0x890 [ 11.111005][ T265] ? __lock_release.isra.0+0x69/0x1a0 [ 11.111008][ T265] ? rcu_is_watching+0x16/0xd0 [ 11.111012][ T265] do_group_exit+0xb8/0x370 [ 11.111014][ T265] __x64_sys_exit_group+0x3c/0x50 [ 11.111016][ T265] x64_sys_call+0x1567/0x1570 [ 11.111019][ T265] do_syscall_64+0xff/0x530 [ 11.111023][ T265] ? exc_page_fault+0xee/0x100 [ 11.111025][ T265] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.111027][ T265] RIP: 0033:0x7fa8a8c551b8 [ 11.111030][ T265] Code: Unable to access opcode bytes at 0x7fa8a8c5518e. [ 11.111031][ T265] RSP: 002b:00007ffdf9a006d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.111033][ T265] RAX: ffffffffffffffda RBX: 00007fa8a8d85f88 RCX: 00007fa8a8c551b8 [ 11.111035][ T265] RDX: 00007fa8a899ffc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 11.111036][ T265] RBP: 00007ffdf9a00730 R08: 0000000000000000 R09: 0000000000000000 [ 11.111036][ T265] R10: 00007ffdf9a004f0 R11: 0000000000000246 R12: 0000000000000001 [ 11.111037][ T265] R13: 0000000000000000 R14: 00007fa8a8d84680 R15: 00007fa8a8d85fa0 [ 11.111044][ T265] [ 18.393322][ C1] tun0: no available key for peer 4, key-id: 0 [ 18.393355][ C1] [ 18.393356][ C1] ======================================================== [ 18.393357][ C1] WARNING: possible irq lock inversion dependency detected [ 18.393359][ C1] 7.2.0-virtme #1 Tainted: G W [ 18.393361][ C1] -------------------------------------------------------- [ 18.393361][ C1] kworker/u16:0/12 just changed the state of lock: [ 18.393362][ C1] ffffffffaea99660 (console_owner){..-.}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 18.393375][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 18.393376][ C1] (fs_reclaim){+.+.}-{0:0} [ 18.393377][ C1] [ 18.393377][ C1] [ 18.393377][ C1] and interrupts could create inverse lock ordering between them. [ 18.393377][ C1] [ 18.393378][ C1] [ 18.393378][ C1] other info that might help us debug this: [ 18.393379][ C1] Possible interrupt unsafe locking scenario: [ 18.393379][ C1] [ 18.393384][ C1] CPU0 CPU1 [ 18.393385][ C1] ---- ---- [ 18.393385][ C1] lock(fs_reclaim); [ 18.393386][ C1] local_irq_disable(); [ 18.393387][ C1] lock(console_owner); [ 18.393388][ C1] lock(fs_reclaim); [ 18.393389][ C1] [ 18.393389][ C1] lock(console_owner); [ 18.393390][ C1] [ 18.393390][ C1] *** DEADLOCK *** [ 18.393390][ C1] [ 18.393390][ C1] locks held by kworker/u16:0/12: 11, last CPU#1: [ 18.393391][ C1] #0: ff11000008d71d40 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0xd9a/0x1560 [ 18.393396][ C1] #1: ffa00000000c7d10 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0xdfc/0x1560 [ 18.393399][ C1] #2: ffffffffaf2e3740 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_dad_work+0x11a/0x930 [ 18.393405][ C1] #3: ffffffffaeb90b00 (rcu_read_lock){....}-{1:3}, at: ndisc_send_skb+0x175/0x1520 [ 18.393408][ C1] #4: ffffffffaeb90b00 (rcu_read_lock){....}-{1:3}, at: ip6_output+0x11d/0x7f0 [ 18.393411][ C1] #5: ffffffffaeb90b00 (rcu_read_lock){....}-{1:3}, at: process_backlog+0x3f1/0x14c0 [ 18.393416][ C1] #6: ffffffffaeb90b00 (rcu_read_lock){....}-{1:3}, at: ip_local_deliver_finish+0x2ba/0x610 [ 18.393425][ C1] #7: ff1100001145ee18 (slock-AF_INET/1){+.-.}-{3:3}, at: tcp_v4_rcv+0x1a81/0x2b70 [ 18.393430][ C1] #8: ffffffffaeb90b00 (rcu_read_lock){....}-{1:3}, at: ovpn_tcp_data_ready+0x62/0x390 [ovpn] [ 18.393436][ C1] #9: ffffffffaeb79cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 18.393439][ C1] #10: ffffffffaeb79d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 18.393443][ C1] [ 18.393443][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 18.393448][ C1] -> (fs_reclaim){+.+.}-{0:0} { [ 18.393450][ C1] HARDIRQ-ON-W at: [ 18.393451][ C1] __lock_acquire+0x388/0xc20 [ 18.393454][ C1] lock_acquire.part.0+0xd4/0x280 [ 18.393455][ C1] fs_reclaim_acquire+0xd5/0x120 [ 18.393458][ C1] __kmalloc_cache_noprof+0x6e/0x620 [ 18.393460][ C1] kthread_create_worker_on_node+0xea/0x210 [ 18.393463][ C1] workqueue_init+0x2a/0x680 [ 18.393466][ C1] kernel_init_freeable+0x2fe/0x630 [ 18.393469][ C1] kernel_init+0x21/0x150 [ 18.393471][ C1] ret_from_fork+0x474/0x6b0 [ 18.393474][ C1] ret_from_fork_asm+0x11/0x20 [ 18.393477][ C1] SOFTIRQ-ON-W at: [ 18.393478][ C1] __lock_acquire+0x388/0xc20 [ 18.393479][ C1] lock_acquire.part.0+0xd4/0x280 [ 18.393480][ C1] fs_reclaim_acquire+0xd5/0x120 [ 18.393481][ C1] __kmalloc_cache_noprof+0x6e/0x620 [ 18.393483][ C1] kthread_create_worker_on_node+0xea/0x210 [ 18.393484][ C1] workqueue_init+0x2a/0x680 [ 18.393485][ C1] kernel_init_freeable+0x2fe/0x630 [ 18.393487][ C1] kernel_init+0x21/0x150 [ 18.393488][ C1] ret_from_fork+0x474/0x6b0 [ 18.393489][ C1] ret_from_fork_asm+0x11/0x20 [ 18.393490][ C1] INITIAL USE at: [ 18.393491][ C1] __lock_acquire+0x388/0xc20 [ 18.393492][ C1] lock_acquire.part.0+0xd4/0x280 [ 18.393493][ C1] fs_reclaim_acquire+0xd5/0x120 [ 18.393494][ C1] __kmalloc_cache_noprof+0x6e/0x620 [ 18.393496][ C1] kthread_create_worker_on_node+0xea/0x210 [ 18.393497][ C1] workqueue_init+0x2a/0x680 [ 18.393498][ C1] kernel_init_freeable+0x2fe/0x630 [ 18.393499][ C1] kernel_init+0x21/0x150 [ 18.393501][ C1] ret_from_fork+0x474/0x6b0 [ 18.393502][ C1] ret_from_fork_asm+0x11/0x20 [ 18.393503][ C1] } [ 18.393503][ C1] ... key at: [] __fs_reclaim_map+0x0/0xbe0 [ 18.393507][ C1] ... acquired at: [ 18.393508][ C1] __lock_acquire+0x518/0xc20 [ 18.393509][ C1] lock_acquire.part.0+0xd4/0x280 [ 18.393510][ C1] fs_reclaim_acquire+0xd5/0x120 [ 18.393511][ C1] __kmalloc_noprof+0xd3/0x760 [ 18.393513][ C1] alloc_buf.isra.0+0x4b/0x260 [ 18.393516][ C1] put_chars+0x1e1/0x2f0 [ 18.393517][ C1] hvc_console_print+0x292/0x780 [ 18.393520][ C1] console_emit_next_record+0x22f/0x4c0 [ 18.393521][ C1] console_flush_one_record+0x46f/0x710 [ 18.393523][ C1] console_unlock+0xee/0x1f0 [ 18.393524][ C1] vprintk_emit+0x37c/0x3e0 [ 18.393526][ C1] dev_vprintk_emit+0x27f/0x2c0 [ 18.393529][ C1] dev_printk_emit+0xb9/0xee [ 18.393531][ C1] _dev_info+0xe2/0x116 [ 18.393532][ C1] __devm_rtc_register_device.cold+0xc3/0x3a8 [ 18.393535][ C1] cmos_do_probe+0x73b/0x98a [ 18.393536][ C1] platform_probe+0xfe/0x1f0 [ 18.393539][ C1] call_driver_probe+0x61/0x1c0 [ 18.393541][ C1] really_probe+0x199/0x760 [ 18.393542][ C1] __driver_probe_device+0x24f/0x440 [ 18.393544][ C1] driver_probe_device+0x4a/0xf0 [ 18.393546][ C1] __driver_attach+0x1b8/0x540 [ 18.393547][ C1] bus_for_each_dev+0x130/0x1e0 [ 18.393548][ C1] bus_add_driver+0x2c8/0x530 [ 18.393550][ C1] driver_register+0x1a3/0x390 [ 18.393551][ C1] __platform_driver_probe+0x13f/0x270 [ 18.393553][ C1] cmos_init+0x31/0x40 [ 18.393555][ C1] do_one_initcall+0x124/0x4f0 [ 18.393557][ C1] kernel_init_freeable+0x596/0x630 [ 18.393558][ C1] kernel_init+0x21/0x150 [ 18.393560][ C1] ret_from_fork+0x474/0x6b0 [ 18.393561][ C1] ret_from_fork_asm+0x11/0x20 [ 18.393562][ C1] [ 18.393562][ C1] -> (console_owner){..-.}-{0:0} { [ 18.393564][ C1] IN-SOFTIRQ-W at: [ 18.393565][ C1] __lock_acquire+0x388/0xc20 [ 18.393566][ C1] lock_acquire.part.0+0xd4/0x280 [ 18.393567][ C1] console_lock_spinning_enable+0x5c/0x60 [ 18.393569][ C1] console_emit_next_record+0x1d1/0x4c0 [ 18.393571][ C1] console_flush_one_record+0x46f/0x710 [ 18.393572][ C1] console_unlock+0xee/0x1f0 [ 18.393574][ C1] vprintk_emit+0x37c/0x3e0 [ 18.393575][ C1] _printk+0xc7/0x100 [ 18.393577][ C1] ovpn_recv.cold+0x7e/0x94 [ovpn] [ 18.393581][ C1] ovpn_tcp_rcv+0x274/0x9a0 [ovpn] [ 18.393583][ C1] __strp_recv+0x20f/0x1c20 [ 18.393586][ C1] __tcp_read_sock+0x1c7/0x850 [ 18.393588][ C1] strp_read_sock+0x20f/0x2b0 [ 18.393590][ C1] strp_data_ready+0x18e/0x2c0 [ 18.393591][ C1] ovpn_tcp_data_ready+0xf1/0x390 [ovpn] [ 18.393593][ C1] tcp_rcv_established+0x1e1d/0x3910 [ 18.393596][ C1] tcp_v4_do_rcv+0x4f6/0xb90 [ 18.393597][ C1] tcp_v4_rcv+0x1caa/0x2b70 [ 18.393598][ C1] ip_protocol_deliver_rcu+0x82/0x350 [ 18.393600][ C1] ip_local_deliver_finish+0x36f/0x610 [ 18.393601][ C1] ip_local_deliver+0x184/0x4c0 [ 18.393602][ C1] ip_rcv+0xdc/0x3d0 [ 18.393603][ C1] __netif_receive_skb_one_core+0xfc/0x180 [ 18.393605][ C1] process_backlog+0x431/0x14c0 [ 18.393607][ C1] __napi_poll+0xa7/0x3b0 [ 18.393608][ C1] net_rx_action+0x513/0xf50 [ 18.393610][ C1] handle_softirqs+0x1d3/0x900 [ 18.393612][ C1] do_softirq+0xac/0xe0 [ 18.393613][ C1] __local_bh_enable_ip+0x118/0x150 [ 18.393614][ C1] __dev_queue_xmit+0x979/0x1b80 [ 18.393616][ C1] ip6_finish_output2+0x423/0x12a0 [ 18.393617][ C1] ip6_finish_output+0x646/0xda0 [ 18.393619][ C1] ip6_output+0x23f/0x7f0 [ 18.393620][ C1] ndisc_send_skb+0xba3/0x1520 [ 18.393621][ C1] addrconf_dad_completed+0x37e/0xe10 [ 18.393623][ C1] addrconf_dad_begin+0x2e1/0x540 [ 18.393624][ C1] addrconf_dad_work+0x170/0x930 [ 18.393626][ C1] process_one_work+0xe3e/0x1560 [ 18.393627][ C1] worker_thread+0x4f1/0xd60 [ 18.393629][ C1] kthread+0x367/0x460 [ 18.393630][ C1] ret_from_fork+0x474/0x6b0 [ 18.393631][ C1] ret_from_fork_asm+0x11/0x20 [ 18.393632][ C1] INITIAL USE at: [ 18.393633][ C1] } [ 18.393634][ C1] ... key at: [] console_owner_dep_map+0x0/0x60 [ 18.393637][ C1] ... acquired at: [ 18.393638][ C1] mark_lock+0x1d7/0xa00 [ 18.393639][ C1] mark_usage+0x42/0x170 [ 18.393640][ C1] __lock_acquire+0x388/0xc20 [ 18.393641][ C1] lock_acquire.part.0+0xd4/0x280 [ 18.393643][ C1] console_lock_spinning_enable+0x5c/0x60 [ 18.393644][ C1] console_emit_next_record+0x1d1/0x4c0 [ 18.393646][ C1] console_flush_one_record+0x46f/0x710 [ 18.393647][ C1] console_unlock+0xee/0x1f0 [ 18.393649][ C1] vprintk_emit+0x37c/0x3e0 [ 18.393650][ C1] _printk+0xc7/0x100 [ 18.393651][ C1] ovpn_recv.cold+0x7e/0x94 [ovpn] [ 18.393654][ C1] ovpn_tcp_rcv+0x274/0x9a0 [ovpn] [ 18.393656][ C1] __strp_recv+0x20f/0x1c20 [ 18.393657][ C1] __tcp_read_sock+0x1c7/0x850 [ 18.393659][ C1] strp_read_sock+0x20f/0x2b0 [ 18.393660][ C1] strp_data_ready+0x18e/0x2c0 [ 18.393662][ C1] ovpn_tcp_data_ready+0xf1/0x390 [ovpn] [ 18.393664][ C1] tcp_rcv_established+0x1e1d/0x3910 [ 18.393666][ C1] tcp_v4_do_rcv+0x4f6/0xb90 [ 18.393667][ C1] tcp_v4_rcv+0x1caa/0x2b70 [ 18.393668][ C1] ip_protocol_deliver_rcu+0x82/0x350 [ 18.393669][ C1] ip_local_deliver_finish+0x36f/0x610 [ 18.393671][ C1] ip_local_deliver+0x184/0x4c0 [ 18.393672][ C1] ip_rcv+0xdc/0x3d0 [ 18.393673][ C1] __netif_receive_skb_one_core+0xfc/0x180 [ 18.393675][ C1] process_backlog+0x431/0x14c0 [ 18.393676][ C1] __napi_poll+0xa7/0x3b0 [ 18.393678][ C1] net_rx_action+0x513/0xf50 [ 18.393679][ C1] handle_softirqs+0x1d3/0x900 [ 18.393680][ C1] do_softirq+0xac/0xe0 [ 18.393681][ C1] __local_bh_enable_ip+0x118/0x150 [ 18.393683][ C1] __dev_queue_xmit+0x979/0x1b80 [ 18.393684][ C1] ip6_finish_output2+0x423/0x12a0 [ 18.393686][ C1] ip6_finish_output+0x646/0xda0 [ 18.393687][ C1] ip6_output+0x23f/0x7f0 [ 18.393688][ C1] ndisc_send_skb+0xba3/0x1520 [ 18.393689][ C1] addrconf_dad_completed+0x37e/0xe10 [ 18.393691][ C1] addrconf_dad_begin+0x2e1/0x540 [ 18.393692][ C1] addrconf_dad_work+0x170/0x930 [ 18.393694][ C1] process_one_work+0xe3e/0x1560 [ 18.393695][ C1] worker_thread+0x4f1/0xd60 [ 18.393697][ C1] kthread+0x367/0x460 [ 18.393698][ C1] ret_from_fork+0x474/0x6b0 [ 18.393699][ C1] ret_from_fork_asm+0x11/0x20 [ 18.393700][ C1] [ 18.393700][ C1] [ 18.393700][ C1] stack backtrace: [ 18.393703][ C1] CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 18.393706][ C1] Tainted: [W]=WARN [ 18.393707][ C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.393708][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 18.393712][ C1] Call Trace: [ 18.393713][ C1] [ 18.393714][ C1] dump_stack_lvl+0x6f/0xa0 [ 18.393718][ C1] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 18.393721][ C1] mark_lock_irq+0x989/0x9c0 [ 18.393723][ C1] mark_lock+0x1d7/0xa00 [ 18.393725][ C1] mark_usage+0x42/0x170 [ 18.393727][ C1] __lock_acquire+0x388/0xc20 [ 18.393729][ C1] lock_acquire.part.0+0xd4/0x280 [ 18.393730][ C1] ? console_lock_spinning_enable+0x40/0x60 [ 18.393732][ C1] ? rcu_is_watching+0x16/0xd0 [ 18.393736][ C1] ? lock_acquire+0x13c/0x160 [ 18.393738][ C1] console_lock_spinning_enable+0x5c/0x60 [ 18.393739][ C1] ? console_lock_spinning_enable+0x40/0x60 [ 18.393741][ C1] console_emit_next_record+0x1d1/0x4c0 [ 18.393743][ C1] ? devkmsg_read+0x4b0/0x4b0 [ 18.393745][ C1] ? console_flush_one_record+0x106/0x710 [ 18.393747][ C1] ? rcu_is_watching+0x16/0xd0 [ 18.393748][ C1] ? lock_acquire+0x13c/0x160 [ 18.393750][ C1] console_flush_one_record+0x46f/0x710 [ 18.393752][ C1] ? console_emit_next_record+0x4c0/0x4c0 [ 18.393754][ C1] ? __lock_acquire+0x518/0xc20 [ 18.393756][ C1] console_unlock+0xee/0x1f0 [ 18.393758][ C1] ? console_flush_one_record+0x710/0x710 [ 18.393759][ C1] ? rcu_is_watching+0x16/0xd0 [ 18.393761][ C1] ? lock_acquire+0x60/0x160 [ 18.393763][ C1] ? __down_trylock_console_sem+0x5e/0xa0 [ 18.393764][ C1] ? vprintk_emit+0x320/0x3e0 [ 18.393766][ C1] vprintk_emit+0x37c/0x3e0 [ 18.393768][ C1] ? wake_up_klogd_work_func+0x90/0x90 [ 18.393770][ C1] ? __lock_release.isra.0+0x69/0x1a0 [ 18.393772][ C1] _printk+0xc7/0x100 [ 18.393774][ C1] ? snapshot_read.cold+0x21/0x21 [ 18.393775][ C1] ? ___ratelimit+0x4e7/0xa00 [ 18.393778][ C1] ? ovpn_netdev_write+0x730/0x730 [ovpn] [ 18.393782][ C1] ? idr_get_free+0x830/0x830 [ 18.393784][ C1] ovpn_recv.cold+0x7e/0x94 [ovpn] [ 18.393787][ C1] ovpn_tcp_rcv+0x274/0x9a0 [ovpn] [ 18.393790][ C1] ? ovpn_tcp_write_space+0x2e0/0x2e0 [ovpn] [ 18.393792][ C1] ? __copy_skb_header+0xb7/0x510 [ 18.393795][ C1] ? ovpn_tcp_disconnect+0x10/0x10 [ovpn] [ 18.393798][ C1] ? sock_queue_err_skb+0xb0/0x680 [ 18.393800][ C1] __strp_recv+0x20f/0x1c20 [ 18.393803][ C1] __tcp_read_sock+0x1c7/0x850 [ 18.393804][ C1] ? strp_process+0xb0/0xb0 [ 18.393806][ C1] ? __tcp_transmit_skb+0x1b6e/0x3c10 [ 18.393807][ C1] ? tcp_cleanup_rbuf+0x1c0/0x1c0 [ 18.393809][ C1] ? mark_usage+0x61/0x170 [ 18.393811][ C1] strp_read_sock+0x20f/0x2b0 [ 18.393813][ C1] ? strp_stop+0x50/0x50 [ 18.393815][ C1] ? rcu_is_watching+0x16/0xd0 [ 18.393817][ C1] ? lock_acquire+0x13c/0x160 [ 18.393818][ C1] strp_data_ready+0x18e/0x2c0 [ 18.393820][ C1] ovpn_tcp_data_ready+0xf1/0x390 [ovpn] [ 18.393823][ C1] tcp_rcv_established+0x1e1d/0x3910 [ 18.393826][ C1] ? __tcp_check_space+0x600/0x600 [ 18.393827][ C1] ? tcp_v4_rcv+0x1a81/0x2b70 [ 18.393829][ C1] ? do_raw_spin_lock+0x131/0x280 [ 18.393831][ C1] tcp_v4_do_rcv+0x4f6/0xb90 [ 18.393833][ C1] tcp_v4_rcv+0x1caa/0x2b70 [ 18.393835][ C1] ? mark_usage+0x61/0x170 [ 18.393837][ C1] ? tcp_add_backlog+0x1e30/0x1e30 [ 18.393839][ C1] ? lock_acquire.part.0+0xd4/0x280 [ 18.393840][ C1] ? ip_local_deliver_finish+0x2ba/0x610 [ 18.393842][ C1] ip_protocol_deliver_rcu+0x82/0x350 [ 18.393844][ C1] ? process_backlog+0x3f1/0x14c0 [ 18.393846][ C1] ip_local_deliver_finish+0x36f/0x610 [ 18.393848][ C1] ip_local_deliver+0x184/0x4c0 [ 18.393849][ C1] ? ip_local_deliver_finish+0x610/0x610 [ 18.393851][ C1] ? ip_rcv_finish_core+0x6ed/0x14c0 [ 18.393853][ C1] ? process_backlog+0x3f1/0x14c0 [ 18.393855][ C1] ip_rcv+0xdc/0x3d0 [ 18.393856][ C1] ? ip_local_deliver+0x4c0/0x4c0 [ 18.393858][ C1] ? rcu_read_lock_any_held+0x3c/0x90 [ 18.393860][ C1] ? mark_usage+0x61/0x170 [ 18.393861][ C1] ? __lock_acquire+0x518/0xc20 [ 18.393863][ C1] ? trace_raw_output_rcu_invoke_kfree_bulk_callback+0x57/0x130 [ 18.393865][ C1] __netif_receive_skb_one_core+0xfc/0x180 [ 18.393867][ C1] ? lock_acquire.part.0+0xd4/0x280 [ 18.393868][ C1] ? process_backlog+0x3f1/0x14c0 [ 18.393870][ C1] ? __netif_receive_skb_list_core+0x9e0/0x9e0 [ 18.393872][ C1] ? rcu_is_watching+0x16/0xd0 [ 18.393874][ C1] process_backlog+0x431/0x14c0 [ 18.393877][ C1] __napi_poll+0xa7/0x3b0 [ 18.393879][ C1] net_rx_action+0x513/0xf50 [ 18.393882][ C1] ? __lock_acquire+0x518/0xc20 [ 18.393883][ C1] ? __napi_poll+0x3b0/0x3b0 [ 18.393886][ C1] ? ktime_get_update_offsets_now+0x2a8/0x490 [ 18.393889][ C1] ? mark_held_locks+0x40/0x70 [ 18.393891][ C1] handle_softirqs+0x1d3/0x900 [ 18.393893][ C1] ? _local_bh_enable+0xc0/0xc0 [ 18.393895][ C1] ? do_raw_spin_unlock+0x59/0x250 [ 18.393896][ C1] ? rcu_is_watching+0x16/0xd0 [ 18.393898][ C1] ? __dev_queue_xmit+0x964/0x1b80 [ 18.393900][ C1] do_softirq+0xac/0xe0 [ 18.393901][ C1] [ 18.393902][ C1] [ 18.393902][ C1] __local_bh_enable_ip+0x118/0x150 [ 18.393904][ C1] __dev_queue_xmit+0x979/0x1b80 [ 18.393906][ C1] ? __lock_acquire+0x518/0xc20 [ 18.393907][ C1] ? do_ipv6_getsockopt+0x18f0/0x2e80 [ 18.393909][ C1] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 18.393911][ C1] ? find_held_lock+0x2b/0x80 [ 18.393913][ C1] ? __lock_release.isra.0+0x69/0x1a0 [ 18.393914][ C1] ? __rwlock_init+0x150/0x150 [ 18.393915][ C1] ? mark_held_locks+0x40/0x70 [ 18.393917][ C1] ? lockdep_hardirqs_on+0x91/0x130 [ 18.393919][ C1] ? __local_bh_enable_ip+0xaa/0x150 [ 18.393920][ C1] ? __local_bh_enable_ip+0xaa/0x150 [ 18.393921][ C1] ? ___neigh_create+0x811/0x1070 [ 18.393924][ C1] ip6_finish_output2+0x423/0x12a0 [ 18.393926][ C1] ? ip6_dst_lookup+0x80/0x80 [ 18.393928][ C1] ? find_held_lock+0x2b/0x80 [ 18.393929][ C1] ? __lock_release.isra.0+0x69/0x1a0 [ 18.393931][ C1] ? ip6_mtu+0x15d/0x310 [ 18.393933][ C1] ip6_finish_output+0x646/0xda0 [ 18.393935][ C1] ip6_output+0x23f/0x7f0 [ 18.393937][ C1] ? ip6_finish_output+0xda0/0xda0 [ 18.393938][ C1] ? lock_acquire.part.0+0xd4/0x280 [ 18.393940][ C1] ? find_held_lock+0x2b/0x80 [ 18.393941][ C1] ? __lock_release.isra.0+0x69/0x1a0 [ 18.393942][ C1] ? __local_bh_enable_ip+0xaa/0x150 [ 18.393944][ C1] ndisc_send_skb+0xba3/0x1520 [ 18.393946][ C1] ? ndisc_recv_na+0xea0/0xea0 [ 18.393948][ C1] ? ndisc_alloc_skb+0x2da/0x490 [ 18.393949][ C1] ? __local_bh_enable_ip+0xaa/0x150 [ 18.393951][ C1] addrconf_dad_completed+0x37e/0xe10 [ 18.393953][ C1] ? lock_acquire.part.0+0xd4/0x280 [ 18.393955][ C1] ? addrconf_rs_timer+0x770/0x770 [ 18.393957][ C1] ? __lock_release.isra.0+0x69/0x1a0 [ 18.393958][ C1] ? __rwlock_init+0x150/0x150 [ 18.393960][ C1] ? mark_held_locks+0x40/0x70 [ 18.393961][ C1] ? addrconf_dad_begin+0x2e1/0x540 [ 18.393963][ C1] addrconf_dad_begin+0x2e1/0x540 [ 18.393965][ C1] ? lock_acquire.part.0+0xd4/0x280 [ 18.393967][ C1] ? addrconf_dad_completed+0xe10/0xe10 [ 18.393968][ C1] ? __lock_release.isra.0+0x69/0x1a0 [ 18.393970][ C1] ? __rwlock_init+0x150/0x150 [ 18.393971][ C1] ? mark_held_locks+0x40/0x70 [ 18.393973][ C1] addrconf_dad_work+0x170/0x930 [ 18.393975][ C1] ? addrconf_dad_begin+0x540/0x540 [ 18.393977][ C1] ? rcu_is_watching+0x16/0xd0 [ 18.393979][ C1] ? rcu_is_watching+0x16/0xd0 [ 18.393980][ C1] ? lock_acquire+0x13c/0x160 [ 18.393982][ C1] ? rcu_is_watching+0x16/0xd0 [ 18.393984][ C1] process_one_work+0xe3e/0x1560 [ 18.393986][ C1] ? __queue_delayed_work+0x470/0x470 [ 18.393988][ C1] ? lock_acquire.part.0+0xd4/0x280 [ 18.393991][ C1] worker_thread+0x4f1/0xd60 [ 18.393993][ C1] ? rescuer_thread+0x1340/0x1340 [ 18.393995][ C1] kthread+0x367/0x460 [ 18.393996][ C1] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 18.393999][ C1] ? kthread_affine_preferred+0x4c0/0x4c0 [ 18.394000][ C1] ret_from_fork+0x474/0x6b0 [ 18.394002][ C1] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 18.394004][ C1] ? __switch_to+0x5a3/0xe00 [ 18.394006][ C1] ? kthread_affine_preferred+0x4c0/0x4c0 [ 18.394008][ C1] ret_from_fork_asm+0x11/0x20 [ 18.394011][ C1] [ 18.394014][ C1] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 18.394016][ C1] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 12, name: kworker/u16:0 [ 18.394017][ C1] preempt_count: 103, expected: 0 [ 18.394018][ C1] RCU nest depth: 5, expected: 0 [ 18.394019][ C1] INFO: lockdep is turned off. [ 18.394019][ C1] irq event stamp: 20181 [ 18.394020][ C1] hardirqs last enabled at (20180): [] __down_trylock_console_sem+0x86/0xa0 [ 18.394022][ C1] hardirqs last disabled at (20181): [] console_emit_next_record+0x3d4/0x4c0 [ 18.394024][ C1] softirqs last enabled at (20032): [] __dev_queue_xmit+0x964/0x1b80 [ 18.394026][ C1] softirqs last disabled at (20033): [] do_softirq+0xac/0xe0 [ 18.394027][ C1] Preemption disabled at: [ 18.394028][ C1] [] __dev_queue_xmit+0x204/0x1b80 [ 18.394031][ C1] CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 18.394032][ C1] Tainted: [W]=WARN [ 18.394033][ C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.394034][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 18.394036][ C1] Call Trace: [ 18.394036][ C1] [ 18.394037][ C1] dump_stack_lvl+0x6f/0xa0 [ 18.394039][ C1] ? __dev_queue_xmit+0x204/0x1b80 [ 18.394041][ C1] __might_resched.cold+0x1fe/0x2c1 [ 18.394044][ C1] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 18.394046][ C1] ? rcu_is_watching+0x16/0xd0 [ 18.394049][ C1] __kmalloc_noprof+0x443/0x760 [ 18.394050][ C1] ? __rwlock_init+0x150/0x150 [ 18.394052][ C1] ? alloc_buf.isra.0+0x4b/0x260 [ 18.394053][ C1] ? do_raw_spin_unlock+0x59/0x250 [ 18.394055][ C1] alloc_buf.isra.0+0x4b/0x260 [ 18.394057][ C1] put_chars+0x1e1/0x2f0 [ 18.394058][ C1] ? __send_to_port+0x420/0x420 [ 18.394061][ C1] hvc_console_print+0x292/0x780 [ 18.394063][ C1] ? __lock_acquire+0x388/0xc20 [ 18.394065][ C1] ? hvc_write+0x3a0/0x3a0 [ 18.394066][ C1] ? rcu_is_watching+0x16/0xd0 [ 18.394068][ C1] ? lock_acquire+0x13c/0x160 [ 18.394070][ C1] console_emit_next_record+0x22f/0x4c0 [ 18.394072][ C1] ? devkmsg_read+0x4b0/0x4b0 [ 18.394073][ C1] ? console_flush_one_record+0x106/0x710 [ 18.394075][ C1] ? rcu_is_watching+0x16/0xd0 [ 18.394077][ C1] ? lock_acquire+0x13c/0x160 [ 18.394079][ C1] console_flush_one_record+0x46f/0x710 [ 18.394081][ C1] ? console_emit_next_record+0x4c0/0x4c0 [ 18.394083][ C1] ? __lock_acquire+0x518/0xc20 [ 18.394085][ C1] console_unlock+0xee/0x1f0 [ 18.394087][ C1] ? console_flush_one_record+0x710/0x710 [ 18.394088][ C1] ? rcu_is_watching+0x16/0xd0 [ 18.394090][ C1] ? lock_acquire+0x60/0x160 [ 18.394092][ C1] ? __down_trylock_console_sem+0x5e/0xa0 [ 18.394093][ C1] ? vprintk_emit+0x320/0x3e0 [ 18.394095][ C1] vprintk_emit+0x37c/0x3e0 [ 18.394097][ C1] ? wake_up_klogd_work_func+0x90/0x90 [ 18.394099][ C1] ? __lock_release.isra.0+0x69/0x1a0 [ 18.394101][ C1] _printk+0xc7/0x100 [ 18.394103][ C1] ? snapshot_read.cold+0x21/0x21 [ 18.394104][ C1] ? ___ratelimit+0x4e7/0xa00 [ 18.394106][ C1] ? ovpn_netdev_write+0x730/0x730 [ovpn] [ 18.394108][ C1] ? idr_get_free+0x830/0x830 [ 18.394110][ C1] ovpn_recv.cold+0x7e/0x94 [ovpn] [ 18.394113][ C1] ovpn_tcp_rcv+0x274/0x9a0 [ovpn] [ 18.394116][ C1] ? ovpn_tcp_write_space+0x2e0/0x2e0 [ovpn] [ 18.394118][ C1] ? __copy_skb_header+0xb7/0x510 [ 18.394120][ C1] ? ovpn_tcp_disconnect+0x10/0x10 [ovpn] [ 18.394122][ C1] ? sock_queue_err_skb+0xb0/0x680 [ 18.394124][ C1] __strp_recv+0x20f/0x1c20 [ 18.394127][ C1] __tcp_read_sock+0x1c7/0x850 [ 18.394129][ C1] ? strp_process+0xb0/0xb0 [ 18.394131][ C1] ? __tcp_transmit_skb+0x1b6e/0x3c10 [ 18.394132][ C1] ? tcp_cleanup_rbuf+0x1c0/0x1c0 [ 18.394134][ C1] ? mark_usage+0x61/0x170 [ 18.394135][ C1] strp_read_sock+0x20f/0x2b0 [ 18.394137][ C1] ? strp_stop+0x50/0x50 [ 18.394139][ C1] ? rcu_is_watching+0x16/0xd0 [ 18.394141][ C1] ? lock_acquire+0x13c/0x160 [ 18.394143][ C1] strp_data_ready+0x18e/0x2c0 [ 18.394145][ C1] ovpn_tcp_data_ready+0xf1/0x390 [ovpn] [ 18.394147][ C1] tcp_rcv_established+0x1e1d/0x3910 [ 18.394150][ C1] ? __tcp_check_space+0x600/0x600 [ 18.394152][ C1] ? tcp_v4_rcv+0x1a81/0x2b70 [ 18.394153][ C1] ? do_raw_spin_lock+0x131/0x280 [ 18.394155][ C1] tcp_v4_do_rcv+0x4f6/0xb90 [ 18.394157][ C1] tcp_v4_rcv+0x1caa/0x2b70 [ 18.394159][ C1] ? mark_usage+0x61/0x170 [ 18.394161][ C1] ? tcp_add_backlog+0x1e30/0x1e30 [ 18.394163][ C1] ? lock_acquire.part.0+0xd4/0x280 [ 18.394164][ C1] ? ip_local_deliver_finish+0x2ba/0x610 [ 18.394166][ C1] ip_protocol_deliver_rcu+0x82/0x350 [ 18.394168][ C1] ? process_backlog+0x3f1/0x14c0 [ 18.394170][ C1] ip_local_deliver_finish+0x36f/0x610 [ 18.394172][ C1] ip_local_deliver+0x184/0x4c0 [ 18.394173][ C1] ? ip_local_deliver_finish+0x610/0x610 [ 18.394175][ C1] ? ip_rcv_finish_core+0x6ed/0x14c0 [ 18.394177][ C1] ? process_backlog+0x3f1/0x14c0 [ 18.394179][ C1] ip_rcv+0xdc/0x3d0 [ 18.394180][ C1] ? ip_local_deliver+0x4c0/0x4c0 [ 18.394182][ C1] ? rcu_read_lock_any_held+0x3c/0x90 [ 18.394183][ C1] ? mark_usage+0x61/0x170 [ 18.394185][ C1] ? __lock_acquire+0x518/0xc20 [ 18.394186][ C1] ? trace_raw_output_rcu_invoke_kfree_bulk_callback+0x57/0x130 [ 18.394188][ C1] __netif_receive_skb_one_core+0xfc/0x180 [ 18.394190][ C1] ? lock_acquire.part.0+0xd4/0x280 [ 18.394191][ C1] ? process_backlog+0x3f1/0x14c0 [ 18.394193][ C1] ? __netif_receive_skb_list_core+0x9e0/0x9e0 [ 18.394195][ C1] ? rcu_is_watching+0x16/0xd0 [ 18.394197][ C1] process_backlog+0x431/0x14c0 [ 18.394200][ C1] __napi_poll+0xa7/0x3b0 [ 18.394202][ C1] net_rx_action+0x513/0xf50 [ 18.394204][ C1] ? __lock_acquire+0x518/0xc20 [ 18.394205][ C1] ? __napi_poll+0x3b0/0x3b0 [ 18.394209][ C1] ? ktime_get_update_offsets_now+0x2a8/0x490 [ 18.394211][ C1] ? mark_held_locks+0x40/0x70 [ 18.394212][ C1] handle_softirqs+0x1d3/0x900 [ 18.394214][ C1] ? _local_bh_enable+0xc0/0xc0 [ 18.394215][ C1] ? do_raw_spin_unlock+0x59/0x250 [ 18.394217][ C1] ? rcu_is_watching+0x16/0xd0 [ 18.394219][ C1] ? __dev_queue_xmit+0x964/0x1b80 [ 18.394221][ C1] do_softirq+0xac/0xe0 [ 18.394222][ C1] [ 18.394222][ C1] [ 18.394223][ C1] __local_bh_enable_ip+0x118/0x150 [ 18.394224][ C1] __dev_queue_xmit+0x979/0x1b80 [ 18.394226][ C1] ? __lock_acquire+0x518/0xc20 [ 18.394228][ C1] ? do_ipv6_getsockopt+0x18f0/0x2e80 [ 18.394229][ C1] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 18.394231][ C1] ? find_held_lock+0x2b/0x80 [ 18.394232][ C1] ? __lock_release.isra.0+0x69/0x1a0 [ 18.394234][ C1] ? __rwlock_init+0x150/0x150 [ 18.394235][ C1] ? mark_held_locks+0x40/0x70 [ 18.394237][ C1] ? lockdep_hardirqs_on+0x91/0x130 [ 18.394238][ C1] ? __local_bh_enable_ip+0xaa/0x150 [ 18.394239][ C1] ? __local_bh_enable_ip+0xaa/0x150 [ 18.394240][ C1] ? ___neigh_create+0x811/0x1070 [ 18.394243][ C1] ip6_finish_output2+0x423/0x12a0 [ 18.394245][ C1] ? ip6_dst_lookup+0x80/0x80 [ 18.394246][ C1] ? find_held_lock+0x2b/0x80 [ 18.394248][ C1] ? __lock_release.isra.0+0x69/0x1a0 [ 18.394249][ C1] ? ip6_mtu+0x15d/0x310 [ 18.394251][ C1] ip6_finish_output+0x646/0xda0 [ 18.394253][ C1] ip6_output+0x23f/0x7f0 [ 18.394255][ C1] ? ip6_finish_output+0xda0/0xda0 [ 18.394256][ C1] ? lock_acquire.part.0+0xd4/0x280 [ 18.394258][ C1] ? find_held_lock+0x2b/0x80 [ 18.394259][ C1] ? __lock_release.isra.0+0x69/0x1a0 [ 18.394260][ C1] ? __local_bh_enable_ip+0xaa/0x150 [ 18.394262][ C1] ndisc_send_skb+0xba3/0x1520 [ 18.394264][ C1] ? ndisc_recv_na+0xea0/0xea0 [ 18.394266][ C1] ? ndisc_alloc_skb+0x2da/0x490 [ 18.394267][ C1] ? __local_bh_enable_ip+0xaa/0x150 [ 18.394269][ C1] addrconf_dad_completed+0x37e/0xe10 [ 18.394271][ C1] ? lock_acquire.part.0+0xd4/0x280 [ 18.394273][ C1] ? addrconf_rs_timer+0x770/0x770 [ 18.394274][ C1] ? __lock_release.isra.0+0x69/0x1a0 [ 18.394276][ C1] ? __rwlock_init+0x150/0x150 [ 18.394277][ C1] ? mark_held_locks+0x40/0x70 [ 18.394279][ C1] ? addrconf_dad_begin+0x2e1/0x540 [ 18.394281][ C1] addrconf_dad_begin+0x2e1/0x540 [ 18.394282][ C1] ? lock_acquire.part.0+0xd4/0x280 [ 18.394284][ C1] ? addrconf_dad_completed+0xe10/0xe10 [ 18.394286][ C1] ? __lock_release.isra.0+0x69/0x1a0 [ 18.394287][ C1] ? __rwlock_init+0x150/0x150 [ 18.394289][ C1] ? mark_held_locks+0x40/0x70 [ 18.394290][ C1] addrconf_dad_work+0x170/0x930 [ 18.394293][ C1] ? addrconf_dad_begin+0x540/0x540 [ 18.394295][ C1] ? rcu_is_watching+0x16/0xd0 [ 18.394296][ C1] ? rcu_is_watching+0x16/0xd0 [ 18.394298][ C1] ? lock_acquire+0x13c/0x160 [ 18.394299][ C1] ? rcu_is_watching+0x16/0xd0 [ 18.394301][ C1] process_one_work+0xe3e/0x1560 [ 18.394304][ C1] ? __queue_delayed_work+0x470/0x470 [ 18.394305][ C1] ? lock_acquire.part.0+0xd4/0x280 [ 18.394308][ C1] worker_thread+0x4f1/0xd60 [ 18.394311][ C1] ? rescuer_thread+0x1340/0x1340 [ 18.394312][ C1] kthread+0x367/0x460 [ 18.394314][ C1] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 18.394315][ C1] ? kthread_affine_preferred+0x4c0/0x4c0 [ 18.394317][ C1] ret_from_fork+0x474/0x6b0 [ 18.394318][ C1] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 18.394320][ C1] ? __switch_to+0x5a3/0xe00 [ 18.394321][ C1] ? kthread_affine_preferred+0x4c0/0x4c0 [ 18.394323][ C1] ret_from_fork_asm+0x11/0x20 [ 18.394325][ C1] [ 18.625549][ C1] tun0: no available key for peer 6, key-id: 0 [ 23.980302][ T480] iperf3 (480) used greatest stack depth: 23128 bytes left [ 23.980320][ T480] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 23.980322][ T480] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 480, name: iperf3 [ 23.980324][ T480] preempt_count: 2, expected: 0 [ 23.980325][ T480] RCU nest depth: 0, expected: 0 [ 23.980325][ T480] INFO: lockdep is turned off. [ 23.980327][ T480] irq event stamp: 0 [ 23.980327][ T480] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [ 23.980332][ T480] hardirqs last disabled at (0): [] copy_process+0x1ccd/0x6240 [ 23.980338][ T480] softirqs last enabled at (0): [] copy_process+0x1d21/0x6240 [ 23.980340][ T480] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 23.980342][ T480] Preemption disabled at: [ 23.980342][ T480] [<0000000000000000>] 0x0 [ 23.980348][ T480] CPU: 3 UID: 0 PID: 480 Comm: iperf3 Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 23.980352][ T480] Tainted: [W]=WARN [ 23.980352][ T480] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 23.980354][ T480] Call Trace: [ 23.980356][ T480] [ 23.980357][ T480] dump_stack_lvl+0x6f/0xa0 [ 23.980362][ T480] __might_resched.cold+0x1fe/0x2c1 [ 23.980366][ T480] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 23.980369][ T480] ? prb_next_reserve_seq+0x2d0/0x2d0 [ 23.980372][ T480] ? rcu_is_watching+0x16/0xd0 [ 23.980375][ T480] __kmalloc_noprof+0x443/0x760 [ 23.980379][ T480] ? __rwlock_init+0x150/0x150 [ 23.980381][ T480] ? alloc_buf.isra.0+0x4b/0x260 [ 23.980385][ T480] ? do_raw_spin_unlock+0x59/0x250 [ 23.980387][ T480] alloc_buf.isra.0+0x4b/0x260 [ 23.980389][ T480] put_chars+0x1e1/0x2f0 [ 23.980391][ T480] ? prb_final_commit+0x50/0x50 [ 23.980392][ T480] ? __send_to_port+0x420/0x420 [ 23.980394][ T480] ? printk_get_next_message+0x240/0x650 [ 23.980397][ T480] hvc_console_print+0x292/0x780 [ 23.980400][ T480] ? hvc_write+0x3a0/0x3a0 [ 23.980402][ T480] ? do_raw_spin_lock+0x131/0x280 [ 23.980404][ T480] ? vsnprintf+0x668/0x1700 [ 23.980406][ T480] ? __rwlock_init+0x150/0x150 [ 23.980408][ T480] ? rcu_is_watching+0x16/0xd0 [ 23.980414][ T480] ? lock_acquire+0x13c/0x160 [ 23.980416][ T480] console_emit_next_record+0x22f/0x4c0 [ 23.980419][ T480] ? devkmsg_read+0x4b0/0x4b0 [ 23.980421][ T480] ? rcu_is_watching+0x16/0xd0 [ 23.980424][ T480] ? rcu_is_watching+0x16/0xd0 [ 23.980425][ T480] ? rcu_is_watching+0x16/0xd0 [ 23.980427][ T480] ? lock_acquire+0x13c/0x160 [ 23.980429][ T480] ? console_flush_one_record+0x111/0x710 [ 23.980430][ T480] console_flush_one_record+0x46f/0x710 [ 23.980433][ T480] ? console_emit_next_record+0x4c0/0x4c0 [ 23.980435][ T480] console_unlock+0xee/0x1f0 [ 23.980437][ T480] ? lock_acquire+0x13c/0x160 [ 23.980439][ T480] ? console_flush_one_record+0x710/0x710 [ 23.980440][ T480] ? rcu_is_watching+0x16/0xd0 [ 23.980442][ T480] ? lock_release+0x184/0x1f0 [ 23.980443][ T480] ? lock_acquire+0x60/0x160 [ 23.980445][ T480] ? __rcu_read_lock+0x30/0x70 [ 23.980447][ T480] ? __down_trylock_console_sem+0x5e/0xa0 [ 23.980448][ T480] ? vprintk_emit+0x320/0x3e0 [ 23.980450][ T480] vprintk_emit+0x37c/0x3e0 [ 23.980452][ T480] ? wake_up_klogd_work_func+0x90/0x90 [ 23.980455][ T480] _printk+0xc7/0x100 [ 23.980458][ T480] ? snapshot_read.cold+0x21/0x21 [ 23.980460][ T480] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 23.980462][ T480] ? do_raw_spin_lock+0x131/0x280 [ 23.980464][ T480] ? __rwlock_init+0x150/0x150 [ 23.980466][ T480] ? do_raw_spin_lock+0x131/0x280 [ 23.980468][ T480] do_exit.cold+0x82/0x9c [ 23.980471][ T480] ? exit_notify+0x890/0x890 [ 23.980473][ T480] __x64_sys_exit+0x42/0x50 [ 23.980475][ T480] x64_sys_call+0x156c/0x1570 [ 23.980477][ T480] do_syscall_64+0xff/0x530 [ 23.980480][ T480] ? exc_page_fault+0xee/0x100 [ 23.980482][ T480] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 23.980484][ T480] RIP: 0033:0x7f8352a9fc49 [ 23.980486][ T480] Code: Unable to access opcode bytes at 0x7f8352a9fc1f. [ 23.980487][ T480] RSP: 002b:00007f835225ee60 EFLAGS: 00000246 ORIG_RAX: 000000000000003c [ 23.980490][ T480] RAX: ffffffffffffffda RBX: 00007f835225f6c0 RCX: 00007f8352a9fc49 [ 23.980491][ T480] RDX: 0000000000000000 RSI: 0000000000801000 RDI: 0000000000000000 [ 23.980492][ T480] RBP: 00007f835225ef70 R08: 0000000000000001 R09: 00007f835225f6c0 [ 23.980493][ T480] R10: 0000000000000008 R11: 0000000000000246 R12: 00007f8351a5f000 [ 23.980494][ T480] R13: 00007ffe772508a0 R14: 0000000000000002 R15: 00007ffe772509a7 [ 23.980496][ T480] [ 24.162309][ T351] tun1: deleting peer with id 10, reason 4 [ 24.162914][ T358] tun2: deleting peer with id 11, reason 4 [ 24.163020][ T380] tun5: deleting peer with id 14, reason 4 [ 24.164244][ T365] tun3: deleting peer with id 12, reason 4 [ 24.165002][ T373] tun4: deleting peer with id 13, reason 4 [ 24.165301][ T388] tun0: deleting peer with id 6, reason 4 [ 24.165313][ T387] tun6: deleting peer with id 15, reason 4 [ 24.170497][ T388] tun0: deleting peer with id 5, reason 4 [ 24.179643][ T388] tun0: deleting peer with id 4, reason 4 [ 24.183642][ T388] tun0: deleting peer with id 3, reason 4 [ 24.198683][ T388] tun0: deleting peer with id 2, reason 4 [ 24.206750][ T388] tun0: deleting peer with id 1, reason 4