[ 10.703793][ T173] sctp: Hash tables configured (bind 32/56) [ 10.703815][ T173] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.703818][ T173] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 173, name: modprobe [ 10.703820][ T173] preempt_count: 1, expected: 0 [ 10.703821][ T173] RCU nest depth: 0, expected: 0 [ 10.703822][ T173] locks held by modprobe/173: 4, last CPU#0: [ 10.703825][ T173] #0: ffffffffb656a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.703838][ T173] #1: ffffffffb656a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.703844][ T173] #2: ffffffffb6489de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.703849][ T173] #3: ffffffffb6489ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.703854][ T173] irq event stamp: 106042 [ 10.703855][ T173] hardirqs last enabled at (106041): [] __down_trylock_console_sem+0x86/0xa0 [ 10.703859][ T173] hardirqs last disabled at (106042): [] console_emit_next_record+0x3d4/0x4c0 [ 10.703861][ T173] softirqs last enabled at (79000): [] handle_softirqs+0x67c/0x900 [ 10.703865][ T173] softirqs last disabled at (78993): [] __irq_exit_rcu+0x145/0x1c0 [ 10.703868][ T173] Preemption disabled at: [ 10.703869][ T173] [] vprintk_emit+0x31b/0x3e0 [ 10.703875][ T173] CPU: 0 UID: 0 PID: 173 Comm: modprobe Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.703880][ T173] Tainted: [W]=WARN [ 10.703881][ T173] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.703883][ T173] Call Trace: [ 10.703885][ T173] [ 10.703887][ T173] dump_stack_lvl+0x6f/0xa0 [ 10.703893][ T173] ? vprintk_emit+0x31b/0x3e0 [ 10.703895][ T173] __might_resched.cold+0x1fe/0x2c1 [ 10.703900][ T173] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.703904][ T173] ? __kmalloc_noprof+0xdb/0x760 [ 10.703911][ T173] __kmalloc_noprof+0x443/0x760 [ 10.703914][ T173] ? alloc_buf.isra.0+0x4b/0x260 [ 10.703922][ T173] ? do_raw_spin_unlock+0x59/0x250 [ 10.703926][ T173] alloc_buf.isra.0+0x4b/0x260 [ 10.703930][ T173] put_chars+0x1e1/0x2f0 [ 10.703939][ T173] ? __send_to_port+0x420/0x420 [ 10.703941][ T173] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.703947][ T173] ? rcu_read_lock_any_held+0x3c/0x90 [ 10.703951][ T173] ? validate_chain+0x38b/0xc20 [ 10.703958][ T173] hvc_console_print+0x292/0x780 [ 10.703962][ T173] ? __lock_acquire+0x518/0xc20 [ 10.703970][ T173] ? hvc_write+0x3a0/0x3a0 [ 10.703974][ T173] ? rcu_is_watching+0x16/0xd0 [ 10.703981][ T173] console_emit_next_record+0x22f/0x4c0 [ 10.703987][ T173] ? devkmsg_read+0x4b0/0x4b0 [ 10.703989][ T173] ? console_flush_one_record+0x106/0x710 [ 10.703994][ T173] ? rcu_is_watching+0x16/0xd0 [ 10.703998][ T173] ? lock_acquire+0x13c/0x160 [ 10.704005][ T173] console_flush_one_record+0x46f/0x710 [ 10.704011][ T173] ? console_emit_next_record+0x4c0/0x4c0 [ 10.704013][ T173] ? __lock_acquire+0x518/0xc20 [ 10.704022][ T173] console_unlock+0xee/0x1f0 [ 10.704026][ T173] ? console_flush_one_record+0x710/0x710 [ 10.704028][ T173] ? rcu_is_watching+0x16/0xd0 [ 10.704031][ T173] ? lock_acquire+0x60/0x160 [ 10.704038][ T173] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.704040][ T173] ? vprintk_emit+0x320/0x3e0 [ 10.704045][ T173] vprintk_emit+0x37c/0x3e0 [ 10.704050][ T173] ? wake_up_klogd_work_func+0x90/0x90 [ 10.704052][ T173] ? lockdep_hardirqs_on+0x91/0x130 [ 10.704060][ T173] ? lookup_object_or_alloc.part.0+0x580/0x580 [ 10.704069][ T173] _printk+0xc7/0x100 [ 10.704074][ T173] ? snapshot_read.cold+0x21/0x21 [ 10.704079][ T173] ? lockdep_init_map_type+0x5d/0x250 [ 10.704084][ T173] ? __rhashtable_init_noprof+0x451/0x7f0 [ 10.704092][ T173] sctp_init+0x43b/0x600 [sctp] [ 10.704123][ T173] ? udp_tunnel_nic_cleanup_module+0xb40/0xb40 [udp_tunnel] [ 10.704127][ T173] do_one_initcall+0x124/0x4f0 [ 10.704132][ T173] ? trace_event_raw_event_initcall_level+0x280/0x280 [ 10.704140][ T173] ? do_init_module+0xae/0x8a0 [ 10.704143][ T173] ? kasan_unpoison+0x44/0x70 [ 10.704150][ T173] do_init_module+0x2ad/0x8a0 [ 10.704156][ T173] ? lockdep_hardirqs_on+0x91/0x130 [ 10.704160][ T173] ? free_module+0x470/0x470 [ 10.704164][ T173] ? kfree+0x123/0x590 [ 10.704171][ T173] load_module+0x154b/0x1d60 [ 10.704184][ T173] ? layout_and_allocate.isra.0+0x680/0x680 [ 10.704192][ T173] ? backing_file_read_iter+0x541/0x790 [ 10.704197][ T173] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.704202][ T173] init_module_from_file+0x11f/0x1a0 [ 10.704207][ T173] ? __ia32_sys_init_module+0xc0/0xc0 [ 10.704221][ T173] ? __rwlock_init+0x150/0x150 [ 10.704227][ T173] ? do_raw_spin_unlock+0x59/0x250 [ 10.704232][ T173] idempotent_init_module+0x37b/0x7c0 [ 10.704237][ T173] ? init_module_from_file+0x1a0/0x1a0 [ 10.704247][ T173] ? rcu_is_watching+0x16/0xd0 [ 10.704250][ T173] ? cap_capable+0x1d7/0x3d0 [ 10.704258][ T173] __x64_sys_finit_module+0xdf/0x190 [ 10.704261][ T173] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 10.704266][ T173] do_syscall_64+0x10e/0x570 [ 10.704269][ T173] ? exc_page_fault+0xee/0x100 [ 10.704273][ T173] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.704277][ T173] RIP: 0033:0x7fb433c3b37d [ 10.704282][ T173] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48 [ 10.704285][ T173] RSP: 002b:00007ffc857bb9d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 10.704288][ T173] RAX: ffffffffffffffda RBX: 000055e1349d49c0 RCX: 00007fb433c3b37d [ 10.704290][ T173] RDX: 0000000000000000 RSI: 000055e11285effd RDI: 0000000000000007 [ 10.704291][ T173] RBP: 00007ffc857bba70 R08: 0000000000000000 R09: 0000000000000000 [ 10.704293][ T173] R10: 0000000000000000 R11: 0000000000000246 R12: 000055e11285effd [ 10.704294][ T173] R13: 000055e1349d4ae0 R14: 0000000000040000 R15: 0000000000000000 [ 10.704307][ T173] [ 11.324064][ T189] ip (189) used greatest stack depth: 23968 bytes left [ 32.089971][ C0] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 32.090016][ C0] [ 32.090018][ C0] ======================================================== [ 32.090019][ C0] WARNING: possible irq lock inversion dependency detected [ 32.090021][ C0] 7.2.0-virtme #1 Tainted: G W [ 32.090023][ C0] -------------------------------------------------------- [ 32.090023][ C0] connect_close/346 just changed the state of lock: [ 32.090025][ C0] ffffffffb6489de0 (console_owner){..-.}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 32.090037][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 32.090038][ C0] (fs_reclaim){+.+.}-{0:0} [ 32.090039][ C0] [ 32.090039][ C0] [ 32.090039][ C0] and interrupts could create inverse lock ordering between them. [ 32.090039][ C0] [ 32.090040][ C0] [ 32.090040][ C0] other info that might help us debug this: [ 32.090041][ C0] Possible interrupt unsafe locking scenario: [ 32.090041][ C0] [ 32.090041][ C0] CPU0 CPU1 [ 32.090042][ C0] ---- ---- [ 32.090042][ C0] lock(fs_reclaim); [ 32.090043][ C0] local_irq_disable(); [ 32.090044][ C0] lock(console_owner); [ 32.090045][ C0] lock(fs_reclaim); [ 32.090046][ C0] [ 32.090046][ C0] lock(console_owner); [ 32.090047][ C0] [ 32.090047][ C0] *** DEADLOCK *** [ 32.090047][ C0] [ 32.090047][ C0] locks held by connect_close/346: 9, last CPU#0: [ 32.090049][ C0] #0: ff1100000d9f9d90 (sk_lock-AF_INET){+.+.}-{0:0}, at: inet_stream_connect+0x44/0xb0 [ 32.090055][ C0] #1: ffffffffb6581280 (rcu_read_lock){....}-{1:3}, at: __ip_queue_xmit+0x63/0x1650 [ 32.090060][ C0] #2: ffffffffb6581280 (rcu_read_lock){....}-{1:3}, at: ip_output+0xa9/0x660 [ 32.090063][ C0] #3: ffffffffb6581280 (rcu_read_lock){....}-{1:3}, at: ip_finish_output2+0x25c/0x1bc0 [ 32.090066][ C0] #4: ffffffffb6581280 (rcu_read_lock){....}-{1:3}, at: process_backlog+0x3f1/0x14c0 [ 32.090070][ C0] #5: ffffffffb6581280 (rcu_read_lock){....}-{1:3}, at: ip_local_deliver_finish+0x2ba/0x610 [ 32.090073][ C0] #6: ffffffffb6581280 (rcu_read_lock){....}-{1:3}, at: tcp_rcv_listen_state_process+0x108/0x380 [ 32.090078][ C0] #7: ffffffffb656a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 32.090081][ C0] #8: ffffffffb656a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 32.090083][ C0] [ 32.090083][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 32.090088][ C0] -> (fs_reclaim){+.+.}-{0:0} { [ 32.090090][ C0] HARDIRQ-ON-W at: [ 32.090092][ C0] __lock_acquire+0x388/0xc20 [ 32.090095][ C0] lock_acquire.part.0+0xd4/0x280 [ 32.090097][ C0] fs_reclaim_acquire+0xd5/0x120 [ 32.090100][ C0] __kmalloc_cache_noprof+0x6e/0x620 [ 32.090103][ C0] kthread_create_worker_on_node+0xea/0x210 [ 32.090107][ C0] workqueue_init+0x2a/0x680 [ 32.090111][ C0] kernel_init_freeable+0x2fe/0x630 [ 32.090114][ C0] kernel_init+0x21/0x150 [ 32.090117][ C0] ret_from_fork+0x4a4/0x720 [ 32.090120][ C0] ret_from_fork_asm+0x11/0x20 [ 32.090123][ C0] SOFTIRQ-ON-W at: [ 32.090124][ C0] __lock_acquire+0x388/0xc20 [ 32.090126][ C0] lock_acquire.part.0+0xd4/0x280 [ 32.090127][ C0] fs_reclaim_acquire+0xd5/0x120 [ 32.090128][ C0] __kmalloc_cache_noprof+0x6e/0x620 [ 32.090130][ C0] kthread_create_worker_on_node+0xea/0x210 [ 32.090131][ C0] workqueue_init+0x2a/0x680 [ 32.090133][ C0] kernel_init_freeable+0x2fe/0x630 [ 32.090134][ C0] kernel_init+0x21/0x150 [ 32.090135][ C0] ret_from_fork+0x4a4/0x720 [ 32.090137][ C0] ret_from_fork_asm+0x11/0x20 [ 32.090138][ C0] INITIAL USE at: [ 32.090139][ C0] __lock_acquire+0x388/0xc20 [ 32.090141][ C0] lock_acquire.part.0+0xd4/0x280 [ 32.090142][ C0] fs_reclaim_acquire+0xd5/0x120 [ 32.090143][ C0] __kmalloc_cache_noprof+0x6e/0x620 [ 32.090145][ C0] kthread_create_worker_on_node+0xea/0x210 [ 32.090146][ C0] workqueue_init+0x2a/0x680 [ 32.090148][ C0] kernel_init_freeable+0x2fe/0x630 [ 32.090149][ C0] kernel_init+0x21/0x150 [ 32.090150][ C0] ret_from_fork+0x4a4/0x720 [ 32.090152][ C0] ret_from_fork_asm+0x11/0x20 [ 32.090153][ C0] } [ 32.090154][ C0] ... key at: [] __fs_reclaim_map+0x0/0xbe0 [ 32.090158][ C0] ... acquired at: [ 32.090159][ C0] __lock_acquire+0x518/0xc20 [ 32.090160][ C0] lock_acquire.part.0+0xd4/0x280 [ 32.090162][ C0] fs_reclaim_acquire+0xd5/0x120 [ 32.090163][ C0] __kmalloc_noprof+0xd3/0x760 [ 32.090164][ C0] alloc_buf.isra.0+0x4b/0x260 [ 32.090168][ C0] put_chars+0x1e1/0x2f0 [ 32.090169][ C0] hvc_console_print+0x292/0x780 [ 32.090171][ C0] console_emit_next_record+0x22f/0x4c0 [ 32.090172][ C0] console_flush_one_record+0x46f/0x710 [ 32.090174][ C0] console_unlock+0xee/0x1f0 [ 32.090174][ C0] vprintk_emit+0x37c/0x3e0 [ 32.090175][ C0] dev_vprintk_emit+0x27f/0x2c0 [ 32.090179][ C0] dev_printk_emit+0xb9/0xee [ 32.090181][ C0] _dev_info+0xe2/0x116 [ 32.090183][ C0] __devm_rtc_register_device.cold+0xc3/0x3a8 [ 32.090186][ C0] cmos_do_probe+0x73b/0x98a [ 32.090187][ C0] platform_probe+0xfe/0x1f0 [ 32.090189][ C0] call_driver_probe+0x61/0x1c0 [ 32.090192][ C0] really_probe+0x199/0x760 [ 32.090194][ C0] __driver_probe_device+0x24f/0x440 [ 32.090195][ C0] driver_probe_device+0x4a/0xf0 [ 32.090197][ C0] __driver_attach+0x1b8/0x540 [ 32.090198][ C0] bus_for_each_dev+0x130/0x1e0 [ 32.090200][ C0] bus_add_driver+0x2c8/0x530 [ 32.090201][ C0] driver_register+0x1a3/0x390 [ 32.090203][ C0] __platform_driver_probe+0x13f/0x270 [ 32.090204][ C0] cmos_init+0x31/0x40 [ 32.090207][ C0] do_one_initcall+0x124/0x4f0 [ 32.090209][ C0] kernel_init_freeable+0x596/0x630 [ 32.090210][ C0] kernel_init+0x21/0x150 [ 32.090211][ C0] ret_from_fork+0x4a4/0x720 [ 32.090212][ C0] ret_from_fork_asm+0x11/0x20 [ 32.090214][ C0] [ 32.090214][ C0] -> (console_owner){..-.}-{0:0} { [ 32.090216][ C0] IN-SOFTIRQ-W at: [ 32.090217][ C0] __lock_acquire+0x388/0xc20 [ 32.090218][ C0] lock_acquire.part.0+0xd4/0x280 [ 32.090220][ C0] console_lock_spinning_enable+0x5c/0x60 [ 32.090221][ C0] console_emit_next_record+0x1d1/0x4c0 [ 32.090222][ C0] console_flush_one_record+0x46f/0x710 [ 32.090223][ C0] console_unlock+0xee/0x1f0 [ 32.090224][ C0] vprintk_emit+0x37c/0x3e0 [ 32.090225][ C0] _printk+0xc7/0x100 [ 32.090228][ C0] tcp_syn_flood_action.cold+0xb4/0xe5 [ 32.090231][ C0] tcp_conn_request+0x13ff/0x2c00 [ 32.090233][ C0] tcp_rcv_listen_state_process+0x1ab/0x380 [ 32.090234][ C0] tcp_v4_rcv_listen.constprop.0.isra.0+0x13f/0x4f0 [ 32.090236][ C0] tcp_v4_rcv+0x2881/0x2ef0 [ 32.090238][ C0] ip_protocol_deliver_rcu+0x82/0x350 [ 32.090239][ C0] ip_local_deliver_finish+0x36f/0x610 [ 32.090240][ C0] ip_local_deliver+0x184/0x4c0 [ 32.090241][ C0] ip_rcv+0xdc/0x3d0 [ 32.090242][ C0] __netif_receive_skb_one_core+0xfc/0x180 [ 32.090244][ C0] process_backlog+0x431/0x14c0 [ 32.090245][ C0] __napi_poll+0xa7/0x3b0 [ 32.090247][ C0] net_rx_action+0x513/0xf50 [ 32.090249][ C0] handle_softirqs+0x1d3/0x900 [ 32.090251][ C0] do_softirq+0xac/0xe0 [ 32.090252][ C0] __local_bh_enable_ip+0x118/0x150 [ 32.090254][ C0] __dev_queue_xmit+0x979/0x1b80 [ 32.090255][ C0] ip_finish_output2+0xd9b/0x1bc0 [ 32.090257][ C0] ip_output+0x1ca/0x660 [ 32.090258][ C0] __ip_queue_xmit+0x774/0x1650 [ 32.090259][ C0] __tcp_transmit_skb+0x1ad9/0x3a70 [ 32.090261][ C0] tcp_connect+0xec4/0x1880 [ 32.090263][ C0] tcp_v4_connect+0x12bd/0x1960 [ 32.090264][ C0] __inet_stream_connect+0x2ed/0xd00 [ 32.090266][ C0] inet_stream_connect+0x59/0xb0 [ 32.090267][ C0] __sys_connect+0x1c1/0x2c0 [ 32.090270][ C0] __x64_sys_connect+0x72/0xd0 [ 32.090271][ C0] do_syscall_64+0x10e/0x570 [ 32.090273][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 32.090275][ C0] INITIAL USE at: [ 32.090276][ C0] } [ 32.090277][ C0] ... key at: [] console_owner_dep_map+0x0/0x60 [ 32.090280][ C0] ... acquired at: [ 32.090280][ C0] mark_lock+0x1d7/0xa00 [ 32.090282][ C0] mark_usage+0x42/0x170 [ 32.090283][ C0] __lock_acquire+0x388/0xc20 [ 32.090285][ C0] lock_acquire.part.0+0xd4/0x280 [ 32.090287][ C0] console_lock_spinning_enable+0x5c/0x60 [ 32.090288][ C0] console_emit_next_record+0x1d1/0x4c0 [ 32.090289][ C0] console_flush_one_record+0x46f/0x710 [ 32.090290][ C0] console_unlock+0xee/0x1f0 [ 32.090291][ C0] vprintk_emit+0x37c/0x3e0 [ 32.090292][ C0] _printk+0xc7/0x100 [ 32.090293][ C0] tcp_syn_flood_action.cold+0xb4/0xe5 [ 32.090295][ C0] tcp_conn_request+0x13ff/0x2c00 [ 32.090296][ C0] tcp_rcv_listen_state_process+0x1ab/0x380 [ 32.090298][ C0] tcp_v4_rcv_listen.constprop.0.isra.0+0x13f/0x4f0 [ 32.090299][ C0] tcp_v4_rcv+0x2881/0x2ef0 [ 32.090300][ C0] ip_protocol_deliver_rcu+0x82/0x350 [ 32.090301][ C0] ip_local_deliver_finish+0x36f/0x610 [ 32.090302][ C0] ip_local_deliver+0x184/0x4c0 [ 32.090303][ C0] ip_rcv+0xdc/0x3d0 [ 32.090304][ C0] __netif_receive_skb_one_core+0xfc/0x180 [ 32.090306][ C0] process_backlog+0x431/0x14c0 [ 32.090307][ C0] __napi_poll+0xa7/0x3b0 [ 32.090309][ C0] net_rx_action+0x513/0xf50 [ 32.090310][ C0] handle_softirqs+0x1d3/0x900 [ 32.090311][ C0] do_softirq+0xac/0xe0 [ 32.090313][ C0] __local_bh_enable_ip+0x118/0x150 [ 32.090314][ C0] __dev_queue_xmit+0x979/0x1b80 [ 32.090316][ C0] ip_finish_output2+0xd9b/0x1bc0 [ 32.090317][ C0] ip_output+0x1ca/0x660 [ 32.090318][ C0] __ip_queue_xmit+0x774/0x1650 [ 32.090319][ C0] __tcp_transmit_skb+0x1ad9/0x3a70 [ 32.090321][ C0] tcp_connect+0xec4/0x1880 [ 32.090322][ C0] tcp_v4_connect+0x12bd/0x1960 [ 32.090323][ C0] __inet_stream_connect+0x2ed/0xd00 [ 32.090325][ C0] inet_stream_connect+0x59/0xb0 [ 32.090326][ C0] __sys_connect+0x1c1/0x2c0 [ 32.090328][ C0] __x64_sys_connect+0x72/0xd0 [ 32.090329][ C0] do_syscall_64+0x10e/0x570 [ 32.090330][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 32.090331][ C0] [ 32.090332][ C0] [ 32.090332][ C0] stack backtrace: [ 32.090335][ C0] CPU: 0 UID: 0 PID: 346 Comm: connect_close Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 32.090338][ C0] Tainted: [W]=WARN [ 32.090339][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 32.090341][ C0] Call Trace: [ 32.090342][ C0] [ 32.090344][ C0] dump_stack_lvl+0x6f/0xa0 [ 32.090347][ C0] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 32.090349][ C0] mark_lock_irq+0x989/0x9c0 [ 32.090353][ C0] mark_lock+0x1d7/0xa00 [ 32.090355][ C0] mark_usage+0x42/0x170 [ 32.090357][ C0] __lock_acquire+0x388/0xc20 [ 32.090359][ C0] lock_acquire.part.0+0xd4/0x280 [ 32.090361][ C0] ? console_lock_spinning_enable+0x40/0x60 [ 32.090363][ C0] ? rcu_is_watching+0x16/0xd0 [ 32.090366][ C0] ? lock_acquire+0x13c/0x160 [ 32.090368][ C0] console_lock_spinning_enable+0x5c/0x60 [ 32.090369][ C0] ? console_lock_spinning_enable+0x40/0x60 [ 32.090370][ C0] console_emit_next_record+0x1d1/0x4c0 [ 32.090372][ C0] ? devkmsg_read+0x4b0/0x4b0 [ 32.090373][ C0] ? console_flush_one_record+0x106/0x710 [ 32.090374][ C0] ? rcu_is_watching+0x16/0xd0 [ 32.090376][ C0] ? lock_acquire+0x13c/0x160 [ 32.090378][ C0] console_flush_one_record+0x46f/0x710 [ 32.090379][ C0] ? console_emit_next_record+0x4c0/0x4c0 [ 32.090381][ C0] ? __lock_acquire+0x518/0xc20 [ 32.090383][ C0] console_unlock+0xee/0x1f0 [ 32.090384][ C0] ? console_flush_one_record+0x710/0x710 [ 32.090385][ C0] ? rcu_is_watching+0x16/0xd0 [ 32.090387][ C0] ? lock_acquire+0x60/0x160 [ 32.090389][ C0] ? __down_trylock_console_sem+0x5e/0xa0 [ 32.090391][ C0] ? vprintk_emit+0x320/0x3e0 [ 32.090393][ C0] vprintk_emit+0x37c/0x3e0 [ 32.090395][ C0] ? wake_up_klogd_work_func+0x90/0x90 [ 32.090396][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 32.090398][ C0] _printk+0xc7/0x100 [ 32.090400][ C0] ? snapshot_read.cold+0x21/0x21 [ 32.090402][ C0] ? ___ratelimit+0x4e7/0xa00 [ 32.090405][ C0] ? idr_get_free+0x830/0x830 [ 32.090407][ C0] tcp_syn_flood_action.cold+0xb4/0xe5 [ 32.090409][ C0] tcp_conn_request+0x13ff/0x2c00 [ 32.090411][ C0] ? reuseport_select_sock+0x19e/0x3c0 [ 32.090414][ C0] ? reuseport_select_sock+0xe1/0x3c0 [ 32.090416][ C0] ? __lock_acquire+0x518/0xc20 [ 32.090418][ C0] ? tcp_get_syncookie_mss+0x300/0x300 [ 32.090420][ C0] ? lock_acquire.part.0+0xd4/0x280 [ 32.090422][ C0] ? __lock_acquire+0x518/0xc20 [ 32.090423][ C0] ? save_trace+0x1f7/0x280 [ 32.090426][ C0] ? rcu_is_watching+0x16/0xd0 [ 32.090427][ C0] ? lock_acquire+0x13c/0x160 [ 32.090429][ C0] ? tcp_rcv_listen_state_process+0x1ab/0x380 [ 32.090431][ C0] tcp_rcv_listen_state_process+0x1ab/0x380 [ 32.090433][ C0] tcp_v4_rcv_listen.constprop.0.isra.0+0x13f/0x4f0 [ 32.090434][ C0] ? tcp_v4_fill_cb+0x33/0x430 [ 32.090436][ C0] tcp_v4_rcv+0x2881/0x2ef0 [ 32.090438][ C0] ? mark_usage+0x61/0x170 [ 32.090440][ C0] ? tcp_add_backlog+0x1e30/0x1e30 [ 32.090442][ C0] ? lock_acquire.part.0+0xd4/0x280 [ 32.090444][ C0] ? ip_local_deliver_finish+0x2ba/0x610 [ 32.090446][ C0] ip_protocol_deliver_rcu+0x82/0x350 [ 32.090448][ C0] ? process_backlog+0x3f1/0x14c0 [ 32.090449][ C0] ip_local_deliver_finish+0x36f/0x610 [ 32.090451][ C0] ip_local_deliver+0x184/0x4c0 [ 32.090452][ C0] ? ip_local_deliver_finish+0x610/0x610 [ 32.090454][ C0] ? ip_protocol_deliver_rcu+0x350/0x350 [ 32.090455][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 32.090458][ C0] ? process_backlog+0x3f1/0x14c0 [ 32.090459][ C0] ip_rcv+0xdc/0x3d0 [ 32.090461][ C0] ? ip_local_deliver+0x4c0/0x4c0 [ 32.090462][ C0] ? rcu_is_watching+0x16/0xd0 [ 32.090463][ C0] ? ip_rcv_finish_core+0x14c0/0x14c0 [ 32.090465][ C0] ? __lock_acquire+0x518/0xc20 [ 32.090467][ C0] ? perf_trace_rcu_grace_period_init+0x227/0x580 [ 32.090469][ C0] ? process_backlog+0x3f1/0x14c0 [ 32.090471][ C0] __netif_receive_skb_one_core+0xfc/0x180 [ 32.090473][ C0] ? lock_acquire.part.0+0xd4/0x280 [ 32.090474][ C0] ? process_backlog+0x3f1/0x14c0 [ 32.090476][ C0] ? __netif_receive_skb_list_core+0x9e0/0x9e0 [ 32.090478][ C0] ? rcu_is_watching+0x16/0xd0 [ 32.090480][ C0] process_backlog+0x431/0x14c0 [ 32.090482][ C0] __napi_poll+0xa7/0x3b0 [ 32.090484][ C0] net_rx_action+0x513/0xf50 [ 32.090487][ C0] ? __lock_acquire+0x518/0xc20 [ 32.090488][ C0] ? __napi_poll+0x3b0/0x3b0 [ 32.090492][ C0] ? ktime_get_update_offsets_now+0x2a8/0x490 [ 32.090495][ C0] ? mark_held_locks+0x40/0x70 [ 32.090497][ C0] handle_softirqs+0x1d3/0x900 [ 32.090500][ C0] ? _local_bh_enable+0xc0/0xc0 [ 32.090501][ C0] ? do_raw_spin_unlock+0x59/0x250 [ 32.090503][ C0] ? rcu_is_watching+0x16/0xd0 [ 32.090505][ C0] ? __dev_queue_xmit+0x964/0x1b80 [ 32.090506][ C0] do_softirq+0xac/0xe0 [ 32.090508][ C0] [ 32.090509][ C0] [ 32.090509][ C0] __local_bh_enable_ip+0x118/0x150 [ 32.090511][ C0] __dev_queue_xmit+0x979/0x1b80 [ 32.090514][ C0] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 32.090516][ C0] ? lock_acquire.part.0+0xd4/0x280 [ 32.090517][ C0] ? find_held_lock+0x2b/0x80 [ 32.090519][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 32.090521][ C0] ? rcu_is_watching+0x16/0xd0 [ 32.090522][ C0] ? mark_held_locks+0x40/0x70 [ 32.090524][ C0] ? __asan_memcpy+0x3c/0x60 [ 32.090527][ C0] ? neigh_hh_output+0x152/0x4c0 [ 32.090529][ C0] ip_finish_output2+0xd9b/0x1bc0 [ 32.090531][ C0] ? ip_dst_mtu_maybe_forward+0x261/0x670 [ 32.090533][ C0] ? ip_fragment.constprop.0+0x2c0/0x2c0 [ 32.090535][ C0] ip_output+0x1ca/0x660 [ 32.090537][ C0] ? ip_finish_output+0x460/0x460 [ 32.090538][ C0] ? find_held_lock+0x2b/0x80 [ 32.090540][ C0] ? __ip_finish_output+0x720/0x720 [ 32.090542][ C0] ? ip4_dst_hoplimit+0x15b/0x320 [ 32.090544][ C0] __ip_queue_xmit+0x774/0x1650 [ 32.090546][ C0] __tcp_transmit_skb+0x1ad9/0x3a70 [ 32.090549][ C0] ? tcp_call_bpf+0x201/0x2e0 [ 32.090551][ C0] ? tcp_clone_payload+0x10b0/0x10b0 [ 32.090553][ C0] ? __tcp_select_window+0xf20/0xf20 [ 32.090555][ C0] ? lockdep_hardirqs_on+0x91/0x130 [ 32.090557][ C0] ? ktime_get+0x18e/0x2d0 [ 32.090559][ C0] ? kvm_clock_get_cycles+0x19/0x30 [ 32.090561][ C0] ? ktime_get+0x1dd/0x2d0 [ 32.090563][ C0] tcp_connect+0xec4/0x1880 [ 32.090566][ C0] tcp_v4_connect+0x12bd/0x1960 [ 32.090568][ C0] ? established_get_first+0x6b0/0x6b0 [ 32.090570][ C0] ? do_raw_spin_lock+0x131/0x280 [ 32.090572][ C0] ? find_held_lock+0x2b/0x80 [ 32.090574][ C0] __inet_stream_connect+0x2ed/0xd00 [ 32.090576][ C0] ? lockdep_hardirqs_on+0x91/0x130 [ 32.090578][ C0] inet_stream_connect+0x59/0xb0 [ 32.090580][ C0] __sys_connect+0x1c1/0x2c0 [ 32.090581][ C0] ? do_fcntl+0x36f/0xc50 [ 32.090585][ C0] ? __sys_connect_file+0x250/0x250 [ 32.090588][ C0] ? fdget_raw+0x4f/0x190 [ 32.090590][ C0] __x64_sys_connect+0x72/0xd0 [ 32.090592][ C0] ? lockdep_hardirqs_on+0x91/0x130 [ 32.090593][ C0] ? do_syscall_64+0xa6/0x570 [ 32.090595][ C0] do_syscall_64+0x10e/0x570 [ 32.090596][ C0] ? exc_page_fault+0xee/0x100 [ 32.090598][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 32.090600][ C0] RIP: 0033:0x7fe51977254e [ 32.090604][ C0] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa [ 32.090605][ C0] RSP: 002b:00007ffd0b095570 EFLAGS: 00000202 ORIG_RAX: 000000000000002a [ 32.090608][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe51977254e [ 32.090609][ C0] RDX: 0000000000000010 RSI: 00007ffd0b095600 RDI: 0000000000000005 [ 32.090610][ C0] RBP: 00007ffd0b095580 R08: 0000000000000000 R09: 0000000000000000 [ 32.090611][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd0b095778 [ 32.090612][ C0] R13: 0000000000000005 R14: 00007fe519943000 R15: 0000000000402e00 [ 32.090614][ C0] [ 32.090619][ C0] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 32.090620][ C0] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 346, name: connect_close [ 32.090622][ C0] preempt_count: 302, expected: 0 [ 32.090622][ C0] RCU nest depth: 6, expected: 0 [ 32.090623][ C0] INFO: lockdep is turned off. [ 32.090624][ C0] irq event stamp: 216549 [ 32.090624][ C0] hardirqs last enabled at (216548): [] __down_trylock_console_sem+0x86/0xa0 [ 32.090627][ C0] hardirqs last disabled at (216549): [] console_emit_next_record+0x3d4/0x4c0 [ 32.090628][ C0] softirqs last enabled at (216532): [] __dev_queue_xmit+0x964/0x1b80 [ 32.090630][ C0] softirqs last disabled at (216533): [] do_softirq+0xac/0xe0 [ 32.090632][ C0] Preemption disabled at: [ 32.090632][ C0] [] __dev_queue_xmit+0x204/0x1b80 [ 32.090635][ C0] CPU: 0 UID: 0 PID: 346 Comm: connect_close Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 32.090637][ C0] Tainted: [W]=WARN [ 32.090638][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 32.090638][ C0] Call Trace: [ 32.090639][ C0] [ 32.090639][ C0] dump_stack_lvl+0x6f/0xa0 [ 32.090641][ C0] ? __dev_queue_xmit+0x204/0x1b80 [ 32.090642][ C0] __might_resched.cold+0x1fe/0x2c1 [ 32.090645][ C0] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 32.090648][ C0] ? rcu_is_watching+0x16/0xd0 [ 32.090649][ C0] __kmalloc_noprof+0x443/0x760 [ 32.090651][ C0] ? __rwlock_init+0x150/0x150 [ 32.090653][ C0] ? alloc_buf.isra.0+0x4b/0x260 [ 32.090655][ C0] ? do_raw_spin_unlock+0x59/0x250 [ 32.090656][ C0] alloc_buf.isra.0+0x4b/0x260 [ 32.090658][ C0] put_chars+0x1e1/0x2f0 [ 32.090660][ C0] ? __send_to_port+0x420/0x420 [ 32.090663][ C0] hvc_console_print+0x292/0x780 [ 32.090665][ C0] ? mark_usage+0x42/0x170 [ 32.090667][ C0] ? __lock_acquire+0x388/0xc20 [ 32.090669][ C0] ? hvc_write+0x3a0/0x3a0 [ 32.090670][ C0] ? lock_acquire.part.0+0xd4/0x280 [ 32.090672][ C0] ? rcu_is_watching+0x16/0xd0 [ 32.090673][ C0] ? lock_acquire+0x13c/0x160 [ 32.090676][ C0] console_emit_next_record+0x22f/0x4c0 [ 32.090677][ C0] ? devkmsg_read+0x4b0/0x4b0 [ 32.090678][ C0] ? console_flush_one_record+0x106/0x710 [ 32.090680][ C0] ? rcu_is_watching+0x16/0xd0 [ 32.090681][ C0] ? lock_acquire+0x13c/0x160 [ 32.090683][ C0] console_flush_one_record+0x46f/0x710 [ 32.090685][ C0] ? console_emit_next_record+0x4c0/0x4c0 [ 32.090686][ C0] ? __lock_acquire+0x518/0xc20 [ 32.090688][ C0] console_unlock+0xee/0x1f0 [ 32.090689][ C0] ? console_flush_one_record+0x710/0x710 [ 32.090690][ C0] ? rcu_is_watching+0x16/0xd0 [ 32.090692][ C0] ? lock_acquire+0x60/0x160 [ 32.090694][ C0] ? __down_trylock_console_sem+0x5e/0xa0 [ 32.090695][ C0] ? vprintk_emit+0x320/0x3e0 [ 32.090697][ C0] vprintk_emit+0x37c/0x3e0 [ 32.090699][ C0] ? wake_up_klogd_work_func+0x90/0x90 [ 32.090700][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 32.090702][ C0] _printk+0xc7/0x100 [ 32.090704][ C0] ? snapshot_read.cold+0x21/0x21 [ 32.090705][ C0] ? ___ratelimit+0x4e7/0xa00 [ 32.090707][ C0] ? idr_get_free+0x830/0x830 [ 32.090709][ C0] tcp_syn_flood_action.cold+0xb4/0xe5 [ 32.090711][ C0] tcp_conn_request+0x13ff/0x2c00 [ 32.090713][ C0] ? reuseport_select_sock+0x19e/0x3c0 [ 32.090715][ C0] ? reuseport_select_sock+0xe1/0x3c0 [ 32.090717][ C0] ? __lock_acquire+0x518/0xc20 [ 32.090719][ C0] ? tcp_get_syncookie_mss+0x300/0x300 [ 32.090721][ C0] ? lock_acquire.part.0+0xd4/0x280 [ 32.090723][ C0] ? __lock_acquire+0x518/0xc20 [ 32.090724][ C0] ? save_trace+0x1f7/0x280 [ 32.090727][ C0] ? rcu_is_watching+0x16/0xd0 [ 32.090728][ C0] ? lock_acquire+0x13c/0x160 [ 32.090730][ C0] ? tcp_rcv_listen_state_process+0x1ab/0x380 [ 32.090732][ C0] tcp_rcv_listen_state_process+0x1ab/0x380 [ 32.090734][ C0] tcp_v4_rcv_listen.constprop.0.isra.0+0x13f/0x4f0 [ 32.090735][ C0] ? tcp_v4_fill_cb+0x33/0x430 [ 32.090736][ C0] tcp_v4_rcv+0x2881/0x2ef0 [ 32.090739][ C0] ? mark_usage+0x61/0x170 [ 32.090740][ C0] ? tcp_add_backlog+0x1e30/0x1e30 [ 32.090742][ C0] ? lock_acquire.part.0+0xd4/0x280 [ 32.090744][ C0] ? ip_local_deliver_finish+0x2ba/0x610 [ 32.090746][ C0] ip_protocol_deliver_rcu+0x82/0x350 [ 32.090747][ C0] ? process_backlog+0x3f1/0x14c0 [ 32.090749][ C0] ip_local_deliver_finish+0x36f/0x610 [ 32.090751][ C0] ip_local_deliver+0x184/0x4c0 [ 32.090752][ C0] ? ip_local_deliver_finish+0x610/0x610 [ 32.090754][ C0] ? ip_protocol_deliver_rcu+0x350/0x350 [ 32.090755][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 32.090757][ C0] ? process_backlog+0x3f1/0x14c0 [ 32.090759][ C0] ip_rcv+0xdc/0x3d0 [ 32.090760][ C0] ? ip_local_deliver+0x4c0/0x4c0 [ 32.090762][ C0] ? rcu_is_watching+0x16/0xd0 [ 32.090763][ C0] ? ip_rcv_finish_core+0x14c0/0x14c0 [ 32.090764][ C0] ? __lock_acquire+0x518/0xc20 [ 32.090766][ C0] ? perf_trace_rcu_grace_period_init+0x227/0x580 [ 32.090768][ C0] ? process_backlog+0x3f1/0x14c0 [ 32.090769][ C0] __netif_receive_skb_one_core+0xfc/0x180 [ 32.090771][ C0] ? lock_acquire.part.0+0xd4/0x280 [ 32.090773][ C0] ? process_backlog+0x3f1/0x14c0 [ 32.090774][ C0] ? __netif_receive_skb_list_core+0x9e0/0x9e0 [ 32.090776][ C0] ? rcu_is_watching+0x16/0xd0 [ 32.090778][ C0] process_backlog+0x431/0x14c0 [ 32.090781][ C0] __napi_poll+0xa7/0x3b0 [ 32.090782][ C0] net_rx_action+0x513/0xf50 [ 32.090785][ C0] ? __lock_acquire+0x518/0xc20 [ 32.090787][ C0] ? __napi_poll+0x3b0/0x3b0 [ 32.090790][ C0] ? ktime_get_update_offsets_now+0x2a8/0x490 [ 32.090792][ C0] ? mark_held_locks+0x40/0x70 [ 32.090794][ C0] handle_softirqs+0x1d3/0x900 [ 32.090796][ C0] ? _local_bh_enable+0xc0/0xc0 [ 32.090798][ C0] ? do_raw_spin_unlock+0x59/0x250 [ 32.090800][ C0] ? rcu_is_watching+0x16/0xd0 [ 32.090801][ C0] ? __dev_queue_xmit+0x964/0x1b80 [ 32.090803][ C0] do_softirq+0xac/0xe0 [ 32.090804][ C0] [ 32.090805][ C0] [ 32.090805][ C0] __local_bh_enable_ip+0x118/0x150 [ 32.090807][ C0] __dev_queue_xmit+0x979/0x1b80 [ 32.090810][ C0] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 32.090812][ C0] ? lock_acquire.part.0+0xd4/0x280 [ 32.090813][ C0] ? find_held_lock+0x2b/0x80 [ 32.090815][ C0] ? __lock_release.isra.0+0x69/0x1a0 [ 32.090816][ C0] ? rcu_is_watching+0x16/0xd0 [ 32.090818][ C0] ? mark_held_locks+0x40/0x70 [ 32.090819][ C0] ? __asan_memcpy+0x3c/0x60 [ 32.090821][ C0] ? neigh_hh_output+0x152/0x4c0 [ 32.090823][ C0] ip_finish_output2+0xd9b/0x1bc0 [ 32.090825][ C0] ? ip_dst_mtu_maybe_forward+0x261/0x670 [ 32.090826][ C0] ? ip_fragment.constprop.0+0x2c0/0x2c0 [ 32.090829][ C0] ip_output+0x1ca/0x660 [ 32.090830][ C0] ? ip_finish_output+0x460/0x460 [ 32.090832][ C0] ? find_held_lock+0x2b/0x80 [ 32.090833][ C0] ? __ip_finish_output+0x720/0x720 [ 32.090835][ C0] ? ip4_dst_hoplimit+0x15b/0x320 [ 32.090837][ C0] __ip_queue_xmit+0x774/0x1650 [ 32.090839][ C0] __tcp_transmit_skb+0x1ad9/0x3a70 [ 32.090842][ C0] ? tcp_call_bpf+0x201/0x2e0 [ 32.090843][ C0] ? tcp_clone_payload+0x10b0/0x10b0 [ 32.090845][ C0] ? __tcp_select_window+0xf20/0xf20 [ 32.090847][ C0] ? lockdep_hardirqs_on+0x91/0x130 [ 32.090849][ C0] ? ktime_get+0x18e/0x2d0 [ 32.090850][ C0] ? kvm_clock_get_cycles+0x19/0x30 [ 32.090852][ C0] ? ktime_get+0x1dd/0x2d0 [ 32.090854][ C0] tcp_connect+0xec4/0x1880 [ 32.090856][ C0] tcp_v4_connect+0x12bd/0x1960 [ 32.090859][ C0] ? established_get_first+0x6b0/0x6b0 [ 32.090860][ C0] ? do_raw_spin_lock+0x131/0x280 [ 32.090862][ C0] ? find_held_lock+0x2b/0x80 [ 32.090864][ C0] __inet_stream_connect+0x2ed/0xd00 [ 32.090866][ C0] ? lockdep_hardirqs_on+0x91/0x130 [ 32.090868][ C0] inet_stream_connect+0x59/0xb0 [ 32.090870][ C0] __sys_connect+0x1c1/0x2c0 [ 32.090872][ C0] ? do_fcntl+0x36f/0xc50 [ 32.090874][ C0] ? __sys_connect_file+0x250/0x250 [ 32.090877][ C0] ? fdget_raw+0x4f/0x190 [ 32.090878][ C0] __x64_sys_connect+0x72/0xd0 [ 32.090880][ C0] ? lockdep_hardirqs_on+0x91/0x130 [ 32.090882][ C0] ? do_syscall_64+0xa6/0x570 [ 32.090883][ C0] do_syscall_64+0x10e/0x570 [ 32.090885][ C0] ? exc_page_fault+0xee/0x100 [ 32.090886][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 32.090888][ C0] RIP: 0033:0x7fe51977254e [ 32.090889][ C0] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa [ 32.090890][ C0] RSP: 002b:00007ffd0b095570 EFLAGS: 00000202 ORIG_RAX: 000000000000002a [ 32.090891][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe51977254e [ 32.090892][ C0] RDX: 0000000000000010 RSI: 00007ffd0b095600 RDI: 0000000000000005 [ 32.090893][ C0] RBP: 00007ffd0b095580 R08: 0000000000000000 R09: 0000000000000000 [ 32.090893][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd0b095778 [ 32.090894][ C0] R13: 0000000000000005 R14: 00007fe519943000 R15: 0000000000402e00 [ 32.090896][ C0] [ 32.289909][ C2] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 32.326237][ C0] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 32.419956][ C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 32.458074][ C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 32.542917][ C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 32.861340][ C2] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 32.985755][ C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 33.032690][ C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 33.526267][ C2] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 33.526286][ C2] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 33.526289][ C2] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 346, name: connect_close [ 33.526291][ C2] preempt_count: 302, expected: 0 [ 33.526292][ C2] RCU nest depth: 6, expected: 0 [ 33.526293][ C2] INFO: lockdep is turned off. [ 33.526294][ C2] irq event stamp: 216549 [ 33.526295][ C2] hardirqs last enabled at (216548): [] __down_trylock_console_sem+0x86/0xa0 [ 33.526303][ C2] hardirqs last disabled at (216549): [] console_emit_next_record+0x3d4/0x4c0 [ 33.526305][ C2] softirqs last enabled at (216532): [] __dev_queue_xmit+0x964/0x1b80 [ 33.526309][ C2] softirqs last disabled at (216533): [] do_softirq+0xac/0xe0 [ 33.526313][ C2] Preemption disabled at: [ 33.526314][ C2] [] __dev_queue_xmit+0x204/0x1b80 [ 33.526319][ C2] CPU: 2 UID: 0 PID: 346 Comm: connect_close Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 33.526323][ C2] Tainted: [W]=WARN [ 33.526324][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 33.526325][ C2] Call Trace: [ 33.526327][ C2] [ 33.526328][ C2] dump_stack_lvl+0x6f/0xa0 [ 33.526332][ C2] ? __dev_queue_xmit+0x204/0x1b80 [ 33.526334][ C2] __might_resched.cold+0x1fe/0x2c1 [ 33.526338][ C2] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 33.526340][ C2] ? prb_next_reserve_seq+0x2d0/0x2d0 [ 33.526342][ C2] ? rcu_is_watching+0x16/0xd0 [ 33.526345][ C2] __kmalloc_noprof+0x443/0x760 [ 33.526348][ C2] ? __rwlock_init+0x150/0x150 [ 33.526351][ C2] ? alloc_buf.isra.0+0x4b/0x260 [ 33.526355][ C2] ? do_raw_spin_unlock+0x59/0x250 [ 33.526356][ C2] alloc_buf.isra.0+0x4b/0x260 [ 33.526358][ C2] put_chars+0x1e1/0x2f0 [ 33.526360][ C2] ? prb_final_commit+0x50/0x50 [ 33.526362][ C2] ? __send_to_port+0x420/0x420 [ 33.526364][ C2] ? printk_get_next_message+0x240/0x650 [ 33.526366][ C2] hvc_console_print+0x292/0x780 [ 33.526369][ C2] ? hvc_write+0x3a0/0x3a0 [ 33.526371][ C2] ? do_raw_spin_lock+0x131/0x280 [ 33.526373][ C2] ? vsnprintf+0x668/0x1700 [ 33.526376][ C2] ? __rwlock_init+0x150/0x150 [ 33.526378][ C2] ? rcu_is_watching+0x16/0xd0 [ 33.526379][ C2] ? lock_acquire+0x13c/0x160 [ 33.526381][ C2] console_emit_next_record+0x22f/0x4c0 [ 33.526383][ C2] ? devkmsg_read+0x4b0/0x4b0 [ 33.526385][ C2] ? rcu_is_watching+0x16/0xd0 [ 33.526386][ C2] ? rcu_is_watching+0x16/0xd0 [ 33.526387][ C2] ? rcu_is_watching+0x16/0xd0 [ 33.526388][ C2] ? lock_acquire+0x13c/0x160 [ 33.526390][ C2] ? console_flush_one_record+0x111/0x710 [ 33.526391][ C2] console_flush_one_record+0x46f/0x710 [ 33.526393][ C2] ? console_emit_next_record+0x4c0/0x4c0 [ 33.526395][ C2] console_unlock+0xee/0x1f0 [ 33.526396][ C2] ? lock_acquire+0x13c/0x160 [ 33.526397][ C2] ? console_flush_one_record+0x710/0x710 [ 33.526398][ C2] ? rcu_is_watching+0x16/0xd0 [ 33.526400][ C2] ? lock_release+0x184/0x1f0 [ 33.526401][ C2] ? lock_acquire+0x60/0x160 [ 33.526403][ C2] ? __rcu_read_lock+0x30/0x70 [ 33.526404][ C2] ? __down_trylock_console_sem+0x5e/0xa0 [ 33.526406][ C2] ? vprintk_emit+0x320/0x3e0 [ 33.526407][ C2] vprintk_emit+0x37c/0x3e0 [ 33.526409][ C2] ? wake_up_klogd_work_func+0x90/0x90 [ 33.526410][ C2] ? do_raw_spin_trylock+0xb6/0x180 [ 33.526412][ C2] ? rcu_is_watching+0x16/0xd0 [ 33.526414][ C2] ? lock_acquire+0x13c/0x160 [ 33.526416][ C2] _printk+0xc7/0x100 [ 33.526418][ C2] ? snapshot_read.cold+0x21/0x21 [ 33.526420][ C2] ? ___ratelimit+0x4e7/0xa00 [ 33.526422][ C2] ? idr_get_free+0x830/0x830 [ 33.526424][ C2] tcp_syn_flood_action.cold+0xb4/0xe5 [ 33.526428][ C2] tcp_conn_request+0x13ff/0x2c00 [ 33.526431][ C2] ? inet_twsk_put+0x11b/0x1a0 [ 33.526434][ C2] ? lock_acquire+0x13c/0x160 [ 33.526435][ C2] ? rcu_is_watching+0x16/0xd0 [ 33.526436][ C2] ? lock_release+0x184/0x1f0 [ 33.526438][ C2] ? reuseport_select_sock+0xe1/0x3c0 [ 33.526441][ C2] ? tcp_get_syncookie_mss+0x300/0x300 [ 33.526444][ C2] ? rcu_is_watching+0x16/0xd0 [ 33.526446][ C2] ? rcu_is_watching+0x16/0xd0 [ 33.526447][ C2] ? lock_acquire+0x13c/0x160 [ 33.526449][ C2] ? tcp_rcv_listen_state_process+0x1ab/0x380 [ 33.526451][ C2] tcp_rcv_listen_state_process+0x1ab/0x380 [ 33.526452][ C2] tcp_v4_rcv_listen.constprop.0.isra.0+0x13f/0x4f0 [ 33.526454][ C2] ? tcp_v4_fill_cb+0x33/0x430 [ 33.526456][ C2] tcp_v4_rcv+0x2881/0x2ef0 [ 33.526458][ C2] ? tcp_add_backlog+0x1e30/0x1e30 [ 33.526460][ C2] ? rcu_is_watching+0x16/0xd0 [ 33.526462][ C2] ? process_backlog+0x3f1/0x14c0 [ 33.526464][ C2] ip_protocol_deliver_rcu+0x82/0x350 [ 33.526466][ C2] ? process_backlog+0x3f1/0x14c0 [ 33.526467][ C2] ip_local_deliver_finish+0x36f/0x610 [ 33.526469][ C2] ? lock_release+0x184/0x1f0 [ 33.526471][ C2] ip_local_deliver+0x184/0x4c0 [ 33.526472][ C2] ? ip_local_deliver_finish+0x610/0x610 [ 33.526474][ C2] ? ip_protocol_deliver_rcu+0x350/0x350 [ 33.526475][ C2] ? rcu_is_watching+0x16/0xd0 [ 33.526477][ C2] ? process_backlog+0x3f1/0x14c0 [ 33.526478][ C2] ip_rcv+0xdc/0x3d0 [ 33.526479][ C2] ? ip_local_deliver+0x4c0/0x4c0 [ 33.526481][ C2] ? ip_rcv_finish_core+0x14c0/0x14c0 [ 33.526483][ C2] ? process_backlog+0x3f1/0x14c0 [ 33.526484][ C2] __netif_receive_skb_one_core+0xfc/0x180 [ 33.526486][ C2] ? __netif_receive_skb_list_core+0x9e0/0x9e0 [ 33.526488][ C2] ? rcu_is_watching+0x16/0xd0 [ 33.526489][ C2] ? rcu_is_watching+0x16/0xd0 [ 33.526491][ C2] process_backlog+0x431/0x14c0 [ 33.526493][ C2] __napi_poll+0xa7/0x3b0 [ 33.526495][ C2] net_rx_action+0x513/0xf50 [ 33.526498][ C2] ? __napi_poll+0x3b0/0x3b0 [ 33.526499][ C2] ? cond_synchronize_rcu+0x10/0x30 [ 33.526502][ C2] ? ktime_get_update_offsets_now+0x2a8/0x490 [ 33.526506][ C2] ? rcu_is_watching+0x16/0xd0 [ 33.526507][ C2] handle_softirqs+0x1d3/0x900 [ 33.526509][ C2] ? rcu_is_watching+0x16/0xd0 [ 33.526511][ C2] ? _local_bh_enable+0xc0/0xc0 [ 33.526512][ C2] ? do_raw_spin_unlock+0x59/0x250 [ 33.526514][ C2] ? rcu_is_watching+0x16/0xd0 [ 33.526515][ C2] ? __dev_queue_xmit+0x964/0x1b80 [ 33.526517][ C2] do_softirq+0xac/0xe0 [ 33.526518][ C2] [ 33.526519][ C2] [ 33.526520][ C2] __local_bh_enable_ip+0x118/0x150 [ 33.526521][ C2] __dev_queue_xmit+0x979/0x1b80 [ 33.526524][ C2] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 33.526527][ C2] ? rcu_is_watching+0x16/0xd0 [ 33.526528][ C2] ? lock_acquire+0x13c/0x160 [ 33.526529][ C2] ? rcu_is_watching+0x16/0xd0 [ 33.526531][ C2] ? __asan_memcpy+0x3c/0x60 [ 33.526533][ C2] ? neigh_hh_output+0x152/0x4c0 [ 33.526535][ C2] ip_finish_output2+0xd9b/0x1bc0 [ 33.526537][ C2] ? ip_dst_mtu_maybe_forward+0x7c/0x670 [ 33.526538][ C2] ? ip_dst_mtu_maybe_forward+0x261/0x670 [ 33.526540][ C2] ? ip_fragment.constprop.0+0x2c0/0x2c0 [ 33.526541][ C2] ? rcu_is_watching+0x16/0xd0 [ 33.526543][ C2] ip_output+0x1ca/0x660 [ 33.526544][ C2] ? ip_finish_output+0x460/0x460 [ 33.526546][ C2] ? lock_acquire+0x13c/0x160 [ 33.526548][ C2] ? __ip_finish_output+0x720/0x720 [ 33.526549][ C2] ? lock_acquire+0x13c/0x160 [ 33.526550][ C2] ? rcu_is_watching+0x16/0xd0 [ 33.526552][ C2] ? lock_release+0x184/0x1f0 [ 33.526553][ C2] __ip_queue_xmit+0x774/0x1650 [ 33.526556][ C2] __tcp_transmit_skb+0x1ad9/0x3a70 [ 33.526558][ C2] ? tcp_call_bpf+0x201/0x2e0 [ 33.526560][ C2] ? tcp_clone_payload+0x10b0/0x10b0 [ 33.526562][ C2] ? __tcp_select_window+0xf20/0xf20 [ 33.526564][ C2] ? trace_hardirqs_on+0x36/0x40 [ 33.526566][ C2] ? kvm_clock_get_cycles+0x19/0x30 [ 33.526569][ C2] ? ktime_get+0x1dd/0x2d0 [ 33.526571][ C2] tcp_connect+0xec4/0x1880 [ 33.526573][ C2] tcp_v4_connect+0x12bd/0x1960 [ 33.526575][ C2] ? established_get_first+0x6b0/0x6b0 [ 33.526577][ C2] ? lockdep_init_map_type+0x5d/0x250 [ 33.526578][ C2] ? do_raw_spin_lock+0x131/0x280 [ 33.526580][ C2] ? __rwlock_init+0x150/0x150 [ 33.526582][ C2] __inet_stream_connect+0x2ed/0xd00 [ 33.526585][ C2] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 33.526586][ C2] ? trace_irq_disable.constprop.0+0x9b/0x160 [ 33.526588][ C2] inet_stream_connect+0x59/0xb0 [ 33.526590][ C2] __sys_connect+0x1c1/0x2c0 [ 33.526593][ C2] ? do_fcntl+0x36f/0xc50 [ 33.526596][ C2] ? rcu_is_watching+0x16/0xd0 [ 33.526597][ C2] ? __sys_connect_file+0x250/0x250 [ 33.526600][ C2] ? fdget_raw+0x4f/0x190 [ 33.526602][ C2] __x64_sys_connect+0x72/0xd0 [ 33.526604][ C2] ? trace_hardirqs_on+0x36/0x40 [ 33.526605][ C2] do_syscall_64+0x10e/0x570 [ 33.526607][ C2] ? irq_exit_rcu+0x1a/0x30 [ 33.526609][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 33.526611][ C2] RIP: 0033:0x7fe51977254e [ 33.526614][ C2] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa [ 33.526616][ C2] RSP: 002b:00007ffd0b095570 EFLAGS: 00000202 ORIG_RAX: 000000000000002a [ 33.526619][ C2] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe51977254e [ 33.526621][ C2] RDX: 0000000000000010 RSI: 00007ffd0b095600 RDI: 0000000000000005 [ 33.526621][ C2] RBP: 00007ffd0b095580 R08: 0000000000000000 R09: 0000000000000000 [ 33.526622][ C2] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd0b095778 [ 33.526623][ C2] R13: 0000000000000005 R14: 00007fe519943000 R15: 0000000000402e00 [ 33.526625][ C2] [ 86.533011][ T1031] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this. [ 86.533027][ T1031] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 86.533029][ T1031] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 1031, name: modprobe [ 86.533031][ T1031] preempt_count: 1, expected: 0 [ 86.533032][ T1031] RCU nest depth: 0, expected: 0 [ 86.533033][ T1031] INFO: lockdep is turned off. [ 86.533034][ T1031] irq event stamp: 0 [ 86.533035][ T1031] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [ 86.533038][ T1031] hardirqs last disabled at (0): [] copy_process+0x1d01/0x62c0 [ 86.533045][ T1031] softirqs last enabled at (0): [] copy_process+0x1d55/0x62c0 [ 86.533047][ T1031] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 86.533048][ T1031] Preemption disabled at: [ 86.533049][ T1031] [] vprintk_emit+0x31b/0x3e0 [ 86.533056][ T1031] CPU: 0 UID: 0 PID: 1031 Comm: modprobe Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 86.533059][ T1031] Tainted: [W]=WARN [ 86.533061][ T1031] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 86.533063][ T1031] Call Trace: [ 86.533064][ T1031] [ 86.533065][ T1031] dump_stack_lvl+0x6f/0xa0 [ 86.533069][ T1031] ? vprintk_emit+0x31b/0x3e0 [ 86.533071][ T1031] __might_resched.cold+0x1fe/0x2c1 [ 86.533074][ T1031] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 86.533076][ T1031] ? rcu_is_watching+0x16/0xd0 [ 86.533080][ T1031] __kmalloc_noprof+0x443/0x760 [ 86.533083][ T1031] ? __rwlock_init+0x150/0x150 [ 86.533086][ T1031] ? alloc_buf.isra.0+0x4b/0x260 [ 86.533090][ T1031] ? do_raw_spin_unlock+0x59/0x250 [ 86.533092][ T1031] alloc_buf.isra.0+0x4b/0x260 [ 86.533094][ T1031] put_chars+0x1e1/0x2f0 [ 86.533096][ T1031] ? __send_to_port+0x420/0x420 [ 86.533098][ T1031] ? console_prepend_replay+0x20/0x20 [ 86.533100][ T1031] hvc_console_print+0x292/0x780 [ 86.533106][ T1031] ? hvc_write+0x3a0/0x3a0 [ 86.533107][ T1031] ? rcu_is_watching+0x16/0xd0 [ 86.533108][ T1031] ? rcu_is_watching+0x16/0xd0 [ 86.533110][ T1031] ? lock_acquire+0x13c/0x160 [ 86.533112][ T1031] console_emit_next_record+0x22f/0x4c0 [ 86.533114][ T1031] ? devkmsg_read+0x4b0/0x4b0 [ 86.533116][ T1031] ? rcu_is_watching+0x16/0xd0 [ 86.533117][ T1031] ? rcu_is_watching+0x16/0xd0 [ 86.533118][ T1031] ? rcu_is_watching+0x16/0xd0 [ 86.533119][ T1031] ? lock_acquire+0x13c/0x160 [ 86.533121][ T1031] ? console_flush_one_record+0x111/0x710 [ 86.533122][ T1031] console_flush_one_record+0x46f/0x710 [ 86.533124][ T1031] ? console_emit_next_record+0x4c0/0x4c0 [ 86.533126][ T1031] console_unlock+0xee/0x1f0 [ 86.533127][ T1031] ? lock_acquire+0x13c/0x160 [ 86.533129][ T1031] ? console_flush_one_record+0x710/0x710 [ 86.533130][ T1031] ? rcu_is_watching+0x16/0xd0 [ 86.533131][ T1031] ? lock_release+0x184/0x1f0 [ 86.533132][ T1031] ? lock_acquire+0x60/0x160 [ 86.533134][ T1031] ? __rcu_read_lock+0x30/0x70 [ 86.533136][ T1031] ? __down_trylock_console_sem+0x5e/0xa0 [ 86.533138][ T1031] ? vprintk_emit+0x320/0x3e0 [ 86.533139][ T1031] vprintk_emit+0x37c/0x3e0 [ 86.533141][ T1031] ? wake_up_klogd_work_func+0x90/0x90 [ 86.533143][ T1031] ? ww_mutex_lock+0x160/0x160 [ 86.533147][ T1031] ? llc_exit+0x3e0/0x3e0 [llc] [ 86.533150][ T1031] _printk+0xc7/0x100 [ 86.533153][ T1031] ? snapshot_read.cold+0x21/0x21 [ 86.533154][ T1031] ? __mutex_unlock_slowpath+0x5e5/0x740 [ 86.533156][ T1031] ? _mutex_trylock_nest_lock+0x390/0x390 [ 86.533159][ T1031] ? __mutex_unlock_slowpath+0x14d/0x740 [ 86.533161][ T1031] br_init+0x98/0xc0 [bridge] [ 86.533173][ T1031] do_one_initcall+0x124/0x4f0 [ 86.533175][ T1031] ? trace_event_raw_event_initcall_level+0x280/0x280 [ 86.533178][ T1031] ? do_init_module+0xae/0x8a0 [ 86.533180][ T1031] ? kasan_unpoison+0x44/0x70 [ 86.533182][ T1031] do_init_module+0x2ad/0x8a0 [ 86.533184][ T1031] ? free_module+0x470/0x470 [ 86.533191][ T1031] ? kfree+0x123/0x590 [ 86.533193][ T1031] load_module+0x154b/0x1d60 [ 86.533196][ T1031] ? layout_and_allocate.isra.0+0x680/0x680 [ 86.533198][ T1031] ? backing_file_read_iter+0x541/0x790 [ 86.533201][ T1031] init_module_from_file+0x11f/0x1a0 [ 86.533203][ T1031] ? __ia32_sys_init_module+0xc0/0xc0 [ 86.533205][ T1031] ? ovl_mmap+0x270/0x270 [ 86.533209][ T1031] ? __rwlock_init+0x150/0x150 [ 86.533211][ T1031] ? rcu_is_watching+0x16/0xd0 [ 86.533212][ T1031] ? lock_release+0x184/0x1f0 [ 86.533214][ T1031] ? do_raw_spin_unlock+0x59/0x250 [ 86.533216][ T1031] idempotent_init_module+0x37b/0x7c0 [ 86.533217][ T1031] ? init_module_from_file+0x1a0/0x1a0 [ 86.533220][ T1031] ? rcu_is_watching+0x16/0xd0 [ 86.533221][ T1031] ? cap_capable+0x1d7/0x3d0 [ 86.533224][ T1031] __x64_sys_finit_module+0xdf/0x190 [ 86.533225][ T1031] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 86.533228][ T1031] do_syscall_64+0x10e/0x570 [ 86.533230][ T1031] ? exc_page_fault+0xee/0x100 [ 86.533232][ T1031] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 86.533235][ T1031] RIP: 0033:0x7f371f75d37d [ 86.533237][ T1031] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48 [ 86.533239][ T1031] RSP: 002b:00007fffdbada8a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 86.533242][ T1031] RAX: ffffffffffffffda RBX: 000055bc517ad810 RCX: 00007f371f75d37d [ 86.533244][ T1031] RDX: 0000000000000000 RSI: 000055bc426aaffd RDI: 0000000000000002 [ 86.533245][ T1031] RBP: 00007fffdbada940 R08: 0000000000000000 R09: 0000000000000000 [ 86.533245][ T1031] R10: 0000000000000000 R11: 0000000000000246 R12: 000055bc426aaffd [ 86.533246][ T1031] R13: 000055bc517ad9c0 R14: 0000000000040000 R15: 0000000000000000 [ 86.533248][ T1031] [ 86.595065][ T1035] br0: port 1(veth0) entered blocking state [ 86.595325][ T1035] br0: port 1(veth0) entered disabled state [ 86.595567][ T1035] veth0: entered allmulticast mode [ 86.596499][ T1035] veth0: entered promiscuous mode [ 86.621322][ T1036] br0: port 2(veth1) entered blocking state [ 86.621564][ T1036] br0: port 2(veth1) entered disabled state [ 86.621798][ T1036] veth1: entered allmulticast mode [ 86.622745][ T1036] veth1: entered promiscuous mode [ 86.647615][ T1037] br0: port 2(veth1) entered blocking state [ 86.647868][ T1037] br0: port 2(veth1) entered forwarding state [ 86.648214][ T1037] br0: port 1(veth0) entered blocking state [ 86.648428][ T1037] br0: port 1(veth0) entered forwarding state [ 92.553400][ T1054] nf_queue (1054) used greatest stack depth: 23912 bytes left [ 92.553420][ T1054] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 92.553424][ T1054] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 1054, name: nf_queue [ 92.553426][ T1054] preempt_count: 2, expected: 0 [ 92.553427][ T1054] RCU nest depth: 0, expected: 0 [ 92.553428][ T1054] INFO: lockdep is turned off. [ 92.553430][ T1054] irq event stamp: 0 [ 92.553431][ T1054] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [ 92.553436][ T1054] hardirqs last disabled at (0): [] copy_process+0x1d01/0x62c0 [ 92.553444][ T1054] softirqs last enabled at (0): [] copy_process+0x1d55/0x62c0 [ 92.553447][ T1054] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 92.553450][ T1054] Preemption disabled at: [ 92.553451][ T1054] [<0000000000000000>] 0x0 [ 92.553457][ T1054] CPU: 0 UID: 0 PID: 1054 Comm: nf_queue Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 92.553461][ T1054] Tainted: [W]=WARN [ 92.553463][ T1054] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 92.553465][ T1054] Call Trace: [ 92.553467][ T1054] [ 92.553469][ T1054] dump_stack_lvl+0x6f/0xa0 [ 92.553474][ T1054] __might_resched.cold+0x1fe/0x2c1 [ 92.553479][ T1054] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 92.553483][ T1054] ? rcu_is_watching+0x16/0xd0 [ 92.553488][ T1054] __kmalloc_noprof+0x443/0x760 [ 92.553492][ T1054] ? __rwlock_init+0x150/0x150 [ 92.553496][ T1054] ? alloc_buf.isra.0+0x4b/0x260 [ 92.553501][ T1054] ? do_raw_spin_unlock+0x59/0x250 [ 92.553504][ T1054] alloc_buf.isra.0+0x4b/0x260 [ 92.553507][ T1054] put_chars+0x1e1/0x2f0 [ 92.553509][ T1054] ? __send_to_port+0x420/0x420 [ 92.553511][ T1054] ? printk_get_next_message+0x240/0x650 [ 92.553515][ T1054] ? console_prepend_replay+0x20/0x20 [ 92.553518][ T1054] hvc_console_print+0x292/0x780 [ 92.553524][ T1054] ? hvc_write+0x3a0/0x3a0 [ 92.553526][ T1054] ? __rwlock_init+0x150/0x150 [ 92.553529][ T1054] ? lock_acquire+0x13c/0x160 [ 92.553533][ T1054] console_emit_next_record+0x22f/0x4c0 [ 92.553536][ T1054] ? devkmsg_read+0x4b0/0x4b0 [ 92.553538][ T1054] ? rcu_is_watching+0x16/0xd0 [ 92.553540][ T1054] ? rcu_is_watching+0x16/0xd0 [ 92.553542][ T1054] ? rcu_is_watching+0x16/0xd0 [ 92.553544][ T1054] ? lock_acquire+0x13c/0x160 [ 92.553547][ T1054] ? console_flush_one_record+0x111/0x710 [ 92.553549][ T1054] console_flush_one_record+0x46f/0x710 [ 92.553552][ T1054] ? console_emit_next_record+0x4c0/0x4c0 [ 92.553555][ T1054] console_unlock+0xee/0x1f0 [ 92.553557][ T1054] ? lock_acquire+0x13c/0x160 [ 92.553560][ T1054] ? console_flush_one_record+0x710/0x710 [ 92.553562][ T1054] ? rcu_is_watching+0x16/0xd0 [ 92.553564][ T1054] ? lock_release+0x184/0x1f0 [ 92.553566][ T1054] ? lock_acquire+0x60/0x160 [ 92.553568][ T1054] ? __rcu_read_lock+0x30/0x70 [ 92.553571][ T1054] ? __down_trylock_console_sem+0x5e/0xa0 [ 92.553574][ T1054] ? vprintk_emit+0x320/0x3e0 [ 92.553577][ T1054] vprintk_emit+0x37c/0x3e0 [ 92.553580][ T1054] ? wake_up_klogd_work_func+0x90/0x90 [ 92.553582][ T1054] ? do_raw_read_unlock+0x70/0x70 [ 92.553585][ T1054] ? forget_original_parent+0x5c/0xdb0 [ 92.553588][ T1054] _printk+0xc7/0x100 [ 92.553592][ T1054] ? snapshot_read.cold+0x21/0x21 [ 92.553594][ T1054] ? do_raw_spin_lock+0x131/0x280 [ 92.553597][ T1054] ? do_raw_spin_lock+0x131/0x280 [ 92.553600][ T1054] ? __rwlock_init+0x150/0x150 [ 92.553603][ T1054] ? do_raw_spin_lock+0x131/0x280 [ 92.553605][ T1054] do_exit.cold+0x82/0x9c [ 92.553609][ T1054] ? exit_notify+0x890/0x890 [ 92.553612][ T1054] ? posixtimer_sig_unignore.isra.0+0x5f0/0x5f0 [ 92.553615][ T1054] ? rcu_is_watching+0x16/0xd0 [ 92.553617][ T1054] do_group_exit+0xb8/0x370 [ 92.553620][ T1054] __x64_sys_exit_group+0x3c/0x50 [ 92.553623][ T1054] x64_sys_call+0x1567/0x1570 [ 92.553626][ T1054] do_syscall_64+0x10e/0x570 [ 92.553630][ T1054] ? exc_page_fault+0xee/0x100 [ 92.553633][ T1054] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 92.553636][ T1054] RIP: 0033:0x7ff07c18c1b8 [ 92.553638][ T1054] Code: Unable to access opcode bytes at 0x7ff07c18c18e. [ 92.553640][ T1054] RSP: 002b:00007ffeb901e478 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 92.553644][ T1054] RAX: ffffffffffffffda RBX: 00007ff07c2bcf88 RCX: 00007ff07c18c1b8 [ 92.553645][ T1054] RDX: 00007ff07c0c9a48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 92.553647][ T1054] RBP: 00007ffeb901e4d0 R08: 0000000000000000 R09: 0000000000000000 [ 92.553648][ T1054] R10: 00007ffeb901e310 R11: 0000000000000246 R12: 0000000000000001 [ 92.553650][ T1054] R13: 0000000000000000 R14: 00007ff07c2bb680 R15: 00007ff07c2bcfa0 [ 92.553653][ T1054] [ 92.568047][ T1055] nf_queue (1055) used greatest stack depth: 23776 bytes left [ 98.345494][ T12] br0: port 1(veth0) entered disabled state [ 98.345510][ T12] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 98.345512][ T12] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 12, name: kworker/u16:0 [ 98.345514][ T12] preempt_count: 202, expected: 0 [ 98.345515][ T12] RCU nest depth: 0, expected: 0 [ 98.345516][ T12] INFO: lockdep is turned off. [ 98.345517][ T12] irq event stamp: 6522 [ 98.345519][ T12] hardirqs last enabled at (6521): [] _raw_spin_unlock_irq+0x28/0x50 [ 98.345528][ T12] hardirqs last disabled at (6522): [] __schedule+0x1246/0x20e0 [ 98.345530][ T12] softirqs last enabled at (6484): [] instance_destroy_work+0x116/0x250 [nfnetlink_queue] [ 98.345534][ T12] softirqs last disabled at (6482): [] instance_destroy_work+0x6f/0x250 [nfnetlink_queue] [ 98.345537][ T12] Preemption disabled at: [ 98.345537][ T12] [<0000000000000000>] 0x0 [ 98.345543][ T12] CPU: 2 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 98.345547][ T12] Tainted: [W]=WARN [ 98.345548][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 98.345549][ T12] Workqueue: netns cleanup_net [ 98.345555][ T12] Call Trace: [ 98.345557][ T12] [ 98.345559][ T12] dump_stack_lvl+0x6f/0xa0 [ 98.345563][ T12] __might_resched.cold+0x1fe/0x2c1 [ 98.345567][ T12] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 98.345570][ T12] ? rcu_is_watching+0x16/0xd0 [ 98.345573][ T12] __kmalloc_noprof+0x443/0x760 [ 98.345577][ T12] ? __rwlock_init+0x150/0x150 [ 98.345580][ T12] ? alloc_buf.isra.0+0x4b/0x260 [ 98.345584][ T12] ? do_raw_spin_unlock+0x59/0x250 [ 98.345586][ T12] alloc_buf.isra.0+0x4b/0x260 [ 98.345588][ T12] put_chars+0x1e1/0x2f0 [ 98.345590][ T12] ? __send_to_port+0x420/0x420 [ 98.345591][ T12] ? printk_get_next_message+0x240/0x650 [ 98.345594][ T12] ? console_prepend_replay+0x20/0x20 [ 98.345596][ T12] hvc_console_print+0x292/0x780 [ 98.345600][ T12] ? hvc_write+0x3a0/0x3a0 [ 98.345601][ T12] ? __rwlock_init+0x150/0x150 [ 98.345603][ T12] ? lock_acquire+0x13c/0x160 [ 98.345605][ T12] console_emit_next_record+0x22f/0x4c0 [ 98.345608][ T12] ? devkmsg_read+0x4b0/0x4b0 [ 98.345609][ T12] ? rcu_is_watching+0x16/0xd0 [ 98.345610][ T12] ? rcu_is_watching+0x16/0xd0 [ 98.345611][ T12] ? rcu_is_watching+0x16/0xd0 [ 98.345612][ T12] ? lock_acquire+0x13c/0x160 [ 98.345614][ T12] ? console_flush_one_record+0x111/0x710 [ 98.345615][ T12] console_flush_one_record+0x46f/0x710 [ 98.345617][ T12] ? console_emit_next_record+0x4c0/0x4c0 [ 98.345619][ T12] console_unlock+0xee/0x1f0 [ 98.345620][ T12] ? lock_acquire+0x13c/0x160 [ 98.345622][ T12] ? console_flush_one_record+0x710/0x710 [ 98.345623][ T12] ? rcu_is_watching+0x16/0xd0 [ 98.345624][ T12] ? lock_release+0x184/0x1f0 [ 98.345626][ T12] ? lock_acquire+0x60/0x160 [ 98.345627][ T12] ? __rcu_read_lock+0x30/0x70 [ 98.345629][ T12] ? __down_trylock_console_sem+0x5e/0xa0 [ 98.345631][ T12] ? vprintk_emit+0x320/0x3e0 [ 98.345632][ T12] vprintk_emit+0x37c/0x3e0 [ 98.345636][ T12] ? wake_up_klogd_work_func+0x90/0x90 [ 98.345637][ T12] ? rcu_is_watching+0x16/0xd0 [ 98.345638][ T12] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 98.345641][ T12] ? trace_hardirqs_on+0x36/0x40 [ 98.345643][ T12] _printk+0xc7/0x100 [ 98.345646][ T12] ? snapshot_read.cold+0x21/0x21 [ 98.345648][ T12] ? ipv6_mc_down+0x17e/0x2d0 [ 98.345652][ T12] br_set_state+0x22f/0x430 [bridge] [ 98.345664][ T12] br_stp_disable_port+0x11f/0x390 [bridge] [ 98.345672][ T12] br_device_event+0x7b5/0x8f0 [bridge] [ 98.345680][ T12] ? lock_release+0x184/0x1f0 [ 98.345682][ T12] ? _sub_I_65535_1+0x4d0/0x4d0 [stp] [ 98.345684][ T12] ? nfqnl_dev_drop+0x54/0x330 [nfnetlink_queue] [ 98.345686][ T12] ? nfqnl_dev_drop+0xf0/0x330 [nfnetlink_queue] [ 98.345688][ T12] notifier_call_chain+0xae/0x300 [ 98.345691][ T12] netif_close_many+0x366/0x770 [ 98.345695][ T12] ? trace_kfree+0xd2/0x100 [ 98.345696][ T12] ? lock_acquire+0x13c/0x160 [ 98.345698][ T12] ? __dev_close_many+0x680/0x680 [ 98.345700][ T12] ? netif_close_many_and_unlock+0x22/0x2c0 [ 98.345702][ T12] unregister_netdevice_many_notify+0x71a/0x1b40 [ 98.345705][ T12] ? ops_undo_list+0x2ce/0x8f0 [ 98.345706][ T12] ? worker_thread+0x4f1/0xd60 [ 98.345708][ T12] ? kthread+0x367/0x460 [ 98.345711][ T12] ? ret_from_fork+0x4a4/0x720 [ 98.345714][ T12] ? ret_from_fork_asm+0x11/0x20 [ 98.345716][ T12] ? unregister_netdevice_queued+0x80/0x80 [ 98.345718][ T12] ? get_rps_cpu+0x980/0x980 [ 98.345721][ T12] default_device_exit_batch+0x38b/0x600 [ 98.345723][ T12] ? generic_xdp_install+0x470/0x470 [ 98.345725][ T12] ? unregister_netdevice_queue+0x470/0x470 [ 98.345727][ T12] ? rtnl_is_locked+0x15/0x20 [ 98.345729][ T12] ? nexthop_net_exit_rtnl+0x1f/0x270 [ 98.345731][ T12] ? mutex_is_locked+0x1c/0x50 [ 98.345734][ T12] ops_undo_list+0x2ce/0x8f0 [ 98.345736][ T12] ? rtnl_net_dumpid_one+0x2d0/0x2d0 [ 98.345737][ T12] ? idr_destroy+0x121/0x250 [ 98.345740][ T12] cleanup_net+0x431/0x890 [ 98.345742][ T12] ? net_passive_dec+0x230/0x230 [ 98.345744][ T12] ? lock_acquire+0x13c/0x160 [ 98.345745][ T12] ? rcu_is_watching+0x16/0xd0 [ 98.345747][ T12] process_one_work+0xe3e/0x1560 [ 98.345749][ T12] ? __queue_delayed_work+0x470/0x470 [ 98.345751][ T12] ? find_held_lock+0x2b/0x80 [ 98.345753][ T12] ? __rwlock_init+0x150/0x150 [ 98.345755][ T12] worker_thread+0x4f1/0xd60 [ 98.345757][ T12] ? rescuer_thread+0x1340/0x1340 [ 98.345759][ T12] kthread+0x367/0x460 [ 98.345760][ T12] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 98.345762][ T12] ? kthread_affine_preferred+0x4c0/0x4c0 [ 98.345764][ T12] ret_from_fork+0x4a4/0x720 [ 98.345765][ T12] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 98.345767][ T12] ? __switch_to+0x5a3/0xe00 [ 98.345770][ T12] ? kthread_affine_preferred+0x4c0/0x4c0 [ 98.345772][ T12] ret_from_fork_asm+0x11/0x20 [ 98.345775][ T12] [ 98.372427][ T12] veth0 (unregistering): left allmulticast mode [ 98.372614][ T12] veth0 (unregistering): left promiscuous mode [ 98.372780][ T12] br0: port 1(veth0) entered disabled state [ 98.436337][ T12] br0: port 2(veth1) entered disabled state [ 98.438712][ T12] veth1 (unregistering): left allmulticast mode [ 98.438996][ T12] veth1 (unregistering): left promiscuous mode [ 98.439262][ T12] br0: port 2(veth1) entered disabled state