[ 10.424827][ T175] sctp: Hash tables configured (bind 32/56) [ 10.424846][ T175] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.424848][ T175] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 175, name: modprobe [ 10.424850][ T175] preempt_count: 1, expected: 0 [ 10.424851][ T175] RCU nest depth: 0, expected: 0 [ 10.424852][ T175] locks held by modprobe/175: 4, last CPU#2: [ 10.424854][ T175] #0: ffffffffa256a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.424869][ T175] #1: ffffffffa256a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.424873][ T175] #2: ffffffffa2489de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.424876][ T175] #3: ffffffffa2489ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.424880][ T175] irq event stamp: 115120 [ 10.424881][ T175] hardirqs last enabled at (115119): [] __down_trylock_console_sem+0x86/0xa0 [ 10.424884][ T175] hardirqs last disabled at (115120): [] console_emit_next_record+0x3d4/0x4c0 [ 10.424886][ T175] softirqs last enabled at (90138): [] handle_softirqs+0x67c/0x900 [ 10.424889][ T175] softirqs last disabled at (90097): [] __irq_exit_rcu+0x145/0x1c0 [ 10.424892][ T175] Preemption disabled at: [ 10.424892][ T175] [] vprintk_emit+0x31b/0x3e0 [ 10.424897][ T175] CPU: 2 UID: 0 PID: 175 Comm: modprobe Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.424901][ T175] Tainted: [W]=WARN [ 10.424902][ T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.424903][ T175] Call Trace: [ 10.424905][ T175] [ 10.424906][ T175] dump_stack_lvl+0x6f/0xa0 [ 10.424911][ T175] ? vprintk_emit+0x31b/0x3e0 [ 10.424913][ T175] __might_resched.cold+0x1fe/0x2c1 [ 10.424918][ T175] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.424921][ T175] ? __kmalloc_noprof+0xdb/0x760 [ 10.424926][ T175] __kmalloc_noprof+0x443/0x760 [ 10.424928][ T175] ? alloc_buf.isra.0+0x4b/0x260 [ 10.424934][ T175] ? do_raw_spin_unlock+0x59/0x250 [ 10.424937][ T175] alloc_buf.isra.0+0x4b/0x260 [ 10.424940][ T175] put_chars+0x1e1/0x2f0 [ 10.424943][ T175] ? __send_to_port+0x420/0x420 [ 10.424945][ T175] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.424949][ T175] ? rcu_read_lock_any_held+0x3c/0x90 [ 10.424951][ T175] ? validate_chain+0x38b/0xc20 [ 10.424956][ T175] hvc_console_print+0x292/0x780 [ 10.424959][ T175] ? __lock_acquire+0x518/0xc20 [ 10.424965][ T175] ? hvc_write+0x3a0/0x3a0 [ 10.424967][ T175] ? rcu_is_watching+0x16/0xd0 [ 10.424972][ T175] console_emit_next_record+0x22f/0x4c0 [ 10.424976][ T175] ? devkmsg_read+0x4b0/0x4b0 [ 10.424977][ T175] ? console_flush_one_record+0x106/0x710 [ 10.424979][ T175] ? rcu_is_watching+0x16/0xd0 [ 10.424981][ T175] ? lock_acquire+0x13c/0x160 [ 10.424985][ T175] console_flush_one_record+0x46f/0x710 [ 10.424989][ T175] ? console_emit_next_record+0x4c0/0x4c0 [ 10.424990][ T175] ? __lock_acquire+0x518/0xc20 [ 10.424995][ T175] console_unlock+0xee/0x1f0 [ 10.424998][ T175] ? console_flush_one_record+0x710/0x710 [ 10.424999][ T175] ? rcu_is_watching+0x16/0xd0 [ 10.425001][ T175] ? lock_acquire+0x60/0x160 [ 10.425004][ T175] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.425006][ T175] ? vprintk_emit+0x320/0x3e0 [ 10.425009][ T175] vprintk_emit+0x37c/0x3e0 [ 10.425012][ T175] ? wake_up_klogd_work_func+0x90/0x90 [ 10.425014][ T175] ? lockdep_hardirqs_on+0x91/0x130 [ 10.425019][ T175] ? lookup_object_or_alloc.part.0+0x580/0x580 [ 10.425025][ T175] _printk+0xc7/0x100 [ 10.425028][ T175] ? snapshot_read.cold+0x21/0x21 [ 10.425032][ T175] ? lockdep_init_map_type+0x5d/0x250 [ 10.425035][ T175] ? __rhashtable_init_noprof+0x451/0x7f0 [ 10.425040][ T175] sctp_init+0x43b/0x600 [sctp] [ 10.425054][ T175] ? sctp_exit+0x270/0x270 [sctp] [ 10.425061][ T175] do_one_initcall+0x124/0x4f0 [ 10.425064][ T175] ? trace_event_raw_event_initcall_level+0x280/0x280 [ 10.425069][ T175] ? do_init_module+0xae/0x8a0 [ 10.425072][ T175] ? kasan_unpoison+0x44/0x70 [ 10.425076][ T175] do_init_module+0x2ad/0x8a0 [ 10.425080][ T175] ? lockdep_hardirqs_on+0x91/0x130 [ 10.425082][ T175] ? free_module+0x470/0x470 [ 10.425085][ T175] ? kfree+0x123/0x590 [ 10.425089][ T175] load_module+0x154b/0x1d60 [ 10.425096][ T175] ? layout_and_allocate.isra.0+0x680/0x680 [ 10.425100][ T175] ? backing_file_read_iter+0x541/0x790 [ 10.425104][ T175] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.425107][ T175] init_module_from_file+0x11f/0x1a0 [ 10.425110][ T175] ? __ia32_sys_init_module+0xc0/0xc0 [ 10.425117][ T175] ? __rwlock_init+0x150/0x150 [ 10.425124][ T175] ? do_raw_spin_unlock+0x59/0x250 [ 10.425127][ T175] idempotent_init_module+0x37b/0x7c0 [ 10.425130][ T175] ? init_module_from_file+0x1a0/0x1a0 [ 10.425136][ T175] ? rcu_is_watching+0x16/0xd0 [ 10.425137][ T175] ? cap_capable+0x1d7/0x3d0 [ 10.425142][ T175] __x64_sys_finit_module+0xdf/0x190 [ 10.425144][ T175] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 10.425148][ T175] do_syscall_64+0x10e/0x570 [ 10.425150][ T175] ? exc_page_fault+0xee/0x100 [ 10.425153][ T175] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.425156][ T175] RIP: 0033:0x7f64ea73537d [ 10.425160][ T175] 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 [ 10.425162][ T175] RSP: 002b:00007ffe3ac96168 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 10.425164][ T175] RAX: ffffffffffffffda RBX: 000055c012da19c0 RCX: 00007f64ea73537d [ 10.425166][ T175] RDX: 0000000000000000 RSI: 000055c00d55fffd RDI: 0000000000000007 [ 10.425167][ T175] RBP: 00007ffe3ac96200 R08: 0000000000000000 R09: 0000000000000000 [ 10.425168][ T175] R10: 0000000000000000 R11: 0000000000000246 R12: 000055c00d55fffd [ 10.425168][ T175] R13: 000055c012da1ae0 R14: 0000000000040000 R15: 0000000000000000 [ 10.425175][ T175] [ 11.200516][ T196] ip (196) used greatest stack depth: 23904 bytes left [ 30.941419][ C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 30.941453][ C3] [ 30.941455][ C3] ======================================================== [ 30.941456][ C3] WARNING: possible irq lock inversion dependency detected [ 30.941458][ C3] 7.2.0-virtme #1 Tainted: G W [ 30.941460][ C3] -------------------------------------------------------- [ 30.941460][ C3] connect_close/343 just changed the state of lock: [ 30.941461][ C3] ffffffffa2489de0 (console_owner){..-.}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 30.941472][ C3] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 30.941473][ C3] (fs_reclaim){+.+.}-{0:0} [ 30.941475][ C3] [ 30.941475][ C3] [ 30.941475][ C3] and interrupts could create inverse lock ordering between them. [ 30.941475][ C3] [ 30.941475][ C3] [ 30.941475][ C3] other info that might help us debug this: [ 30.941476][ C3] Possible interrupt unsafe locking scenario: [ 30.941476][ C3] [ 30.941476][ C3] CPU0 CPU1 [ 30.941477][ C3] ---- ---- [ 30.941477][ C3] lock(fs_reclaim); [ 30.941479][ C3] local_irq_disable(); [ 30.941479][ C3] lock(console_owner); [ 30.941480][ C3] lock(fs_reclaim); [ 30.941481][ C3] [ 30.941481][ C3] lock(console_owner); [ 30.941482][ C3] [ 30.941482][ C3] *** DEADLOCK *** [ 30.941482][ C3] [ 30.941482][ C3] locks held by connect_close/343: 9, last CPU#3: [ 30.941484][ C3] #0: ff1100000d021010 (sk_lock-AF_INET){+.+.}-{0:0}, at: inet_stream_connect+0x44/0xb0 [ 30.941490][ C3] #1: ffffffffa2581280 (rcu_read_lock){....}-{1:3}, at: __ip_queue_xmit+0x63/0x1650 [ 30.941494][ C3] #2: ffffffffa2581280 (rcu_read_lock){....}-{1:3}, at: ip_output+0xa9/0x660 [ 30.941497][ C3] #3: ffffffffa2581280 (rcu_read_lock){....}-{1:3}, at: ip_finish_output2+0x25c/0x1bc0 [ 30.941500][ C3] #4: ffffffffa2581280 (rcu_read_lock){....}-{1:3}, at: process_backlog+0x3f1/0x14c0 [ 30.941505][ C3] #5: ffffffffa2581280 (rcu_read_lock){....}-{1:3}, at: ip_local_deliver_finish+0x2ba/0x610 [ 30.941507][ C3] #6: ffffffffa2581280 (rcu_read_lock){....}-{1:3}, at: tcp_rcv_listen_state_process+0x108/0x380 [ 30.941512][ C3] #7: ffffffffa256a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 30.941514][ C3] #8: ffffffffa256a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 30.941517][ C3] [ 30.941517][ C3] the shortest dependencies between 2nd lock and 1st lock: [ 30.941522][ C3] -> (fs_reclaim){+.+.}-{0:0} { [ 30.941524][ C3] HARDIRQ-ON-W at: [ 30.941526][ C3] __lock_acquire+0x388/0xc20 [ 30.941529][ C3] lock_acquire.part.0+0xd4/0x280 [ 30.941531][ C3] fs_reclaim_acquire+0xd5/0x120 [ 30.941534][ C3] __kmalloc_cache_noprof+0x6e/0x620 [ 30.941537][ C3] kthread_create_worker_on_node+0xea/0x210 [ 30.941540][ C3] workqueue_init+0x2a/0x680 [ 30.941544][ C3] kernel_init_freeable+0x2fe/0x630 [ 30.941547][ C3] kernel_init+0x21/0x150 [ 30.941549][ C3] ret_from_fork+0x4a4/0x720 [ 30.941552][ C3] ret_from_fork_asm+0x11/0x20 [ 30.941555][ C3] SOFTIRQ-ON-W at: [ 30.941556][ C3] __lock_acquire+0x388/0xc20 [ 30.941558][ C3] lock_acquire.part.0+0xd4/0x280 [ 30.941559][ C3] fs_reclaim_acquire+0xd5/0x120 [ 30.941561][ C3] __kmalloc_cache_noprof+0x6e/0x620 [ 30.941562][ C3] kthread_create_worker_on_node+0xea/0x210 [ 30.941564][ C3] workqueue_init+0x2a/0x680 [ 30.941565][ C3] kernel_init_freeable+0x2fe/0x630 [ 30.941567][ C3] kernel_init+0x21/0x150 [ 30.941568][ C3] ret_from_fork+0x4a4/0x720 [ 30.941569][ C3] ret_from_fork_asm+0x11/0x20 [ 30.941570][ C3] INITIAL USE at: [ 30.941571][ C3] __lock_acquire+0x388/0xc20 [ 30.941573][ C3] lock_acquire.part.0+0xd4/0x280 [ 30.941574][ C3] fs_reclaim_acquire+0xd5/0x120 [ 30.941575][ C3] __kmalloc_cache_noprof+0x6e/0x620 [ 30.941577][ C3] kthread_create_worker_on_node+0xea/0x210 [ 30.941578][ C3] workqueue_init+0x2a/0x680 [ 30.941580][ C3] kernel_init_freeable+0x2fe/0x630 [ 30.941581][ C3] kernel_init+0x21/0x150 [ 30.941582][ C3] ret_from_fork+0x4a4/0x720 [ 30.941583][ C3] ret_from_fork_asm+0x11/0x20 [ 30.941585][ C3] } [ 30.941585][ C3] ... key at: [] __fs_reclaim_map+0x0/0xbe0 [ 30.941589][ C3] ... acquired at: [ 30.941590][ C3] __lock_acquire+0x518/0xc20 [ 30.941592][ C3] lock_acquire.part.0+0xd4/0x280 [ 30.941593][ C3] fs_reclaim_acquire+0xd5/0x120 [ 30.941594][ C3] __kmalloc_noprof+0xd3/0x760 [ 30.941596][ C3] alloc_buf.isra.0+0x4b/0x260 [ 30.941599][ C3] put_chars+0x1e1/0x2f0 [ 30.941600][ C3] hvc_console_print+0x292/0x780 [ 30.941603][ C3] console_emit_next_record+0x22f/0x4c0 [ 30.941604][ C3] console_flush_one_record+0x46f/0x710 [ 30.941605][ C3] console_unlock+0xee/0x1f0 [ 30.941606][ C3] vprintk_emit+0x37c/0x3e0 [ 30.941607][ C3] dev_vprintk_emit+0x27f/0x2c0 [ 30.941610][ C3] dev_printk_emit+0xb9/0xee [ 30.941612][ C3] _dev_info+0xe2/0x116 [ 30.941613][ C3] __devm_rtc_register_device.cold+0xc3/0x3a8 [ 30.941616][ C3] cmos_do_probe+0x73b/0x98a [ 30.941618][ C3] platform_probe+0xfe/0x1f0 [ 30.941620][ C3] call_driver_probe+0x61/0x1c0 [ 30.941622][ C3] really_probe+0x199/0x760 [ 30.941624][ C3] __driver_probe_device+0x24f/0x440 [ 30.941625][ C3] driver_probe_device+0x4a/0xf0 [ 30.941627][ C3] __driver_attach+0x1b8/0x540 [ 30.941628][ C3] bus_for_each_dev+0x130/0x1e0 [ 30.941630][ C3] bus_add_driver+0x2c8/0x530 [ 30.941631][ C3] driver_register+0x1a3/0x390 [ 30.941633][ C3] __platform_driver_probe+0x13f/0x270 [ 30.941634][ C3] cmos_init+0x31/0x40 [ 30.941637][ C3] do_one_initcall+0x124/0x4f0 [ 30.941638][ C3] kernel_init_freeable+0x596/0x630 [ 30.941639][ C3] kernel_init+0x21/0x150 [ 30.941641][ C3] ret_from_fork+0x4a4/0x720 [ 30.941642][ C3] ret_from_fork_asm+0x11/0x20 [ 30.941643][ C3] [ 30.941644][ C3] -> (console_owner){..-.}-{0:0} { [ 30.941645][ C3] IN-SOFTIRQ-W at: [ 30.941646][ C3] __lock_acquire+0x388/0xc20 [ 30.941648][ C3] lock_acquire.part.0+0xd4/0x280 [ 30.941649][ C3] console_lock_spinning_enable+0x5c/0x60 [ 30.941650][ C3] console_emit_next_record+0x1d1/0x4c0 [ 30.941651][ C3] console_flush_one_record+0x46f/0x710 [ 30.941652][ C3] console_unlock+0xee/0x1f0 [ 30.941653][ C3] vprintk_emit+0x37c/0x3e0 [ 30.941654][ C3] _printk+0xc7/0x100 [ 30.941657][ C3] tcp_syn_flood_action.cold+0xb4/0xe5 [ 30.941660][ C3] tcp_conn_request+0x13ff/0x2c00 [ 30.941661][ C3] tcp_rcv_listen_state_process+0x1ab/0x380 [ 30.941663][ C3] tcp_v4_rcv_listen.constprop.0.isra.0+0x13f/0x4f0 [ 30.941665][ C3] tcp_v4_rcv+0x2881/0x2ef0 [ 30.941666][ C3] ip_protocol_deliver_rcu+0x82/0x350 [ 30.941667][ C3] ip_local_deliver_finish+0x36f/0x610 [ 30.941669][ C3] ip_local_deliver+0x184/0x4c0 [ 30.941670][ C3] ip_rcv+0xdc/0x3d0 [ 30.941671][ C3] __netif_receive_skb_one_core+0xfc/0x180 [ 30.941672][ C3] process_backlog+0x431/0x14c0 [ 30.941674][ C3] __napi_poll+0xa7/0x3b0 [ 30.941675][ C3] net_rx_action+0x513/0xf50 [ 30.941677][ C3] handle_softirqs+0x1d3/0x900 [ 30.941679][ C3] do_softirq+0xac/0xe0 [ 30.941680][ C3] __local_bh_enable_ip+0x118/0x150 [ 30.941682][ C3] __dev_queue_xmit+0x979/0x1b80 [ 30.941683][ C3] ip_finish_output2+0xd9b/0x1bc0 [ 30.941685][ C3] ip_output+0x1ca/0x660 [ 30.941686][ C3] __ip_queue_xmit+0x774/0x1650 [ 30.941687][ C3] __tcp_transmit_skb+0x1ad9/0x3a70 [ 30.941689][ C3] tcp_connect+0xec4/0x1880 [ 30.941690][ C3] tcp_v4_connect+0x12bd/0x1960 [ 30.941692][ C3] __inet_stream_connect+0x2ed/0xd00 [ 30.941693][ C3] inet_stream_connect+0x59/0xb0 [ 30.941695][ C3] __sys_connect+0x1c1/0x2c0 [ 30.941697][ C3] __x64_sys_connect+0x72/0xd0 [ 30.941699][ C3] do_syscall_64+0x10e/0x570 [ 30.941700][ C3] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 30.941702][ C3] INITIAL USE at: [ 30.941703][ C3] } [ 30.941703][ C3] ... key at: [] console_owner_dep_map+0x0/0x60 [ 30.941706][ C3] ... acquired at: [ 30.941707][ C3] mark_lock+0x1d7/0xa00 [ 30.941708][ C3] mark_usage+0x42/0x170 [ 30.941710][ C3] __lock_acquire+0x388/0xc20 [ 30.941711][ C3] lock_acquire.part.0+0xd4/0x280 [ 30.941713][ C3] console_lock_spinning_enable+0x5c/0x60 [ 30.941714][ C3] console_emit_next_record+0x1d1/0x4c0 [ 30.941715][ C3] console_flush_one_record+0x46f/0x710 [ 30.941716][ C3] console_unlock+0xee/0x1f0 [ 30.941717][ C3] vprintk_emit+0x37c/0x3e0 [ 30.941718][ C3] _printk+0xc7/0x100 [ 30.941719][ C3] tcp_syn_flood_action.cold+0xb4/0xe5 [ 30.941720][ C3] tcp_conn_request+0x13ff/0x2c00 [ 30.941722][ C3] tcp_rcv_listen_state_process+0x1ab/0x380 [ 30.941723][ C3] tcp_v4_rcv_listen.constprop.0.isra.0+0x13f/0x4f0 [ 30.941725][ C3] tcp_v4_rcv+0x2881/0x2ef0 [ 30.941726][ C3] ip_protocol_deliver_rcu+0x82/0x350 [ 30.941727][ C3] ip_local_deliver_finish+0x36f/0x610 [ 30.941728][ C3] ip_local_deliver+0x184/0x4c0 [ 30.941729][ C3] ip_rcv+0xdc/0x3d0 [ 30.941730][ C3] __netif_receive_skb_one_core+0xfc/0x180 [ 30.941731][ C3] process_backlog+0x431/0x14c0 [ 30.941733][ C3] __napi_poll+0xa7/0x3b0 [ 30.941734][ C3] net_rx_action+0x513/0xf50 [ 30.941735][ C3] handle_softirqs+0x1d3/0x900 [ 30.941737][ C3] do_softirq+0xac/0xe0 [ 30.941738][ C3] __local_bh_enable_ip+0x118/0x150 [ 30.941739][ C3] __dev_queue_xmit+0x979/0x1b80 [ 30.941741][ C3] ip_finish_output2+0xd9b/0x1bc0 [ 30.941742][ C3] ip_output+0x1ca/0x660 [ 30.941743][ C3] __ip_queue_xmit+0x774/0x1650 [ 30.941744][ C3] __tcp_transmit_skb+0x1ad9/0x3a70 [ 30.941746][ C3] tcp_connect+0xec4/0x1880 [ 30.941747][ C3] tcp_v4_connect+0x12bd/0x1960 [ 30.941748][ C3] __inet_stream_connect+0x2ed/0xd00 [ 30.941750][ C3] inet_stream_connect+0x59/0xb0 [ 30.941751][ C3] __sys_connect+0x1c1/0x2c0 [ 30.941753][ C3] __x64_sys_connect+0x72/0xd0 [ 30.941754][ C3] do_syscall_64+0x10e/0x570 [ 30.941755][ C3] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 30.941756][ C3] [ 30.941756][ C3] [ 30.941756][ C3] stack backtrace: [ 30.941759][ C3] CPU: 3 UID: 0 PID: 343 Comm: connect_close Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 30.941762][ C3] Tainted: [W]=WARN [ 30.941763][ C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 30.941765][ C3] Call Trace: [ 30.941766][ C3] [ 30.941767][ C3] dump_stack_lvl+0x6f/0xa0 [ 30.941770][ C3] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 30.941773][ C3] mark_lock_irq+0x989/0x9c0 [ 30.941776][ C3] mark_lock+0x1d7/0xa00 [ 30.941778][ C3] mark_usage+0x42/0x170 [ 30.941780][ C3] __lock_acquire+0x388/0xc20 [ 30.941782][ C3] lock_acquire.part.0+0xd4/0x280 [ 30.941784][ C3] ? console_lock_spinning_enable+0x40/0x60 [ 30.941786][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.941788][ C3] ? lock_acquire+0x13c/0x160 [ 30.941790][ C3] console_lock_spinning_enable+0x5c/0x60 [ 30.941792][ C3] ? console_lock_spinning_enable+0x40/0x60 [ 30.941793][ C3] console_emit_next_record+0x1d1/0x4c0 [ 30.941794][ C3] ? devkmsg_read+0x4b0/0x4b0 [ 30.941795][ C3] ? console_flush_one_record+0x106/0x710 [ 30.941797][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.941798][ C3] ? lock_acquire+0x13c/0x160 [ 30.941800][ C3] console_flush_one_record+0x46f/0x710 [ 30.941802][ C3] ? console_emit_next_record+0x4c0/0x4c0 [ 30.941803][ C3] ? __lock_acquire+0x518/0xc20 [ 30.941805][ C3] console_unlock+0xee/0x1f0 [ 30.941807][ C3] ? console_flush_one_record+0x710/0x710 [ 30.941808][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.941809][ C3] ? lock_acquire+0x60/0x160 [ 30.941811][ C3] ? __down_trylock_console_sem+0x5e/0xa0 [ 30.941813][ C3] ? vprintk_emit+0x320/0x3e0 [ 30.941815][ C3] vprintk_emit+0x37c/0x3e0 [ 30.941816][ C3] ? wake_up_klogd_work_func+0x90/0x90 [ 30.941818][ C3] ? __lock_release.isra.0+0x69/0x1a0 [ 30.941820][ C3] _printk+0xc7/0x100 [ 30.941822][ C3] ? snapshot_read.cold+0x21/0x21 [ 30.941823][ C3] ? ___ratelimit+0x4e7/0xa00 [ 30.941826][ C3] ? idr_get_free+0x830/0x830 [ 30.941828][ C3] tcp_syn_flood_action.cold+0xb4/0xe5 [ 30.941830][ C3] tcp_conn_request+0x13ff/0x2c00 [ 30.941832][ C3] ? reuseport_select_sock+0x19e/0x3c0 [ 30.941835][ C3] ? reuseport_select_sock+0xe1/0x3c0 [ 30.941837][ C3] ? __lock_acquire+0x518/0xc20 [ 30.941839][ C3] ? tcp_get_syncookie_mss+0x300/0x300 [ 30.941841][ C3] ? lock_acquire.part.0+0xd4/0x280 [ 30.941843][ C3] ? __lock_acquire+0x518/0xc20 [ 30.941844][ C3] ? save_trace+0x1f7/0x280 [ 30.941847][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.941848][ C3] ? lock_acquire+0x13c/0x160 [ 30.941850][ C3] ? tcp_rcv_listen_state_process+0x1ab/0x380 [ 30.941852][ C3] tcp_rcv_listen_state_process+0x1ab/0x380 [ 30.941853][ C3] tcp_v4_rcv_listen.constprop.0.isra.0+0x13f/0x4f0 [ 30.941855][ C3] ? tcp_v4_fill_cb+0x33/0x430 [ 30.941856][ C3] tcp_v4_rcv+0x2881/0x2ef0 [ 30.941859][ C3] ? mark_usage+0x61/0x170 [ 30.941860][ C3] ? tcp_add_backlog+0x1e30/0x1e30 [ 30.941862][ C3] ? lock_acquire.part.0+0xd4/0x280 [ 30.941864][ C3] ? ip_local_deliver_finish+0x2ba/0x610 [ 30.941866][ C3] ip_protocol_deliver_rcu+0x82/0x350 [ 30.941867][ C3] ? process_backlog+0x3f1/0x14c0 [ 30.941869][ C3] ip_local_deliver_finish+0x36f/0x610 [ 30.941871][ C3] ip_local_deliver+0x184/0x4c0 [ 30.941872][ C3] ? ip_local_deliver_finish+0x610/0x610 [ 30.941874][ C3] ? ip_protocol_deliver_rcu+0x350/0x350 [ 30.941875][ C3] ? __lock_release.isra.0+0x69/0x1a0 [ 30.941877][ C3] ? process_backlog+0x3f1/0x14c0 [ 30.941878][ C3] ip_rcv+0xdc/0x3d0 [ 30.941880][ C3] ? ip_local_deliver+0x4c0/0x4c0 [ 30.941881][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.941883][ C3] ? ip_rcv_finish_core+0x14c0/0x14c0 [ 30.941884][ C3] ? __lock_acquire+0x518/0xc20 [ 30.941886][ C3] ? perf_trace_rcu_grace_period_init+0x227/0x580 [ 30.941888][ C3] ? process_backlog+0x3f1/0x14c0 [ 30.941890][ C3] __netif_receive_skb_one_core+0xfc/0x180 [ 30.941891][ C3] ? lock_acquire.part.0+0xd4/0x280 [ 30.941893][ C3] ? process_backlog+0x3f1/0x14c0 [ 30.941895][ C3] ? __netif_receive_skb_list_core+0x9e0/0x9e0 [ 30.941896][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.941898][ C3] process_backlog+0x431/0x14c0 [ 30.941901][ C3] __napi_poll+0xa7/0x3b0 [ 30.941902][ C3] net_rx_action+0x513/0xf50 [ 30.941905][ C3] ? __lock_acquire+0x518/0xc20 [ 30.941906][ C3] ? __napi_poll+0x3b0/0x3b0 [ 30.941910][ C3] ? ktime_get_update_offsets_now+0x2a8/0x490 [ 30.941913][ C3] ? mark_held_locks+0x40/0x70 [ 30.941915][ C3] handle_softirqs+0x1d3/0x900 [ 30.941917][ C3] ? _local_bh_enable+0xc0/0xc0 [ 30.941919][ C3] ? do_raw_spin_unlock+0x59/0x250 [ 30.941921][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.941922][ C3] ? __dev_queue_xmit+0x964/0x1b80 [ 30.941924][ C3] do_softirq+0xac/0xe0 [ 30.941925][ C3] [ 30.941926][ C3] [ 30.941926][ C3] __local_bh_enable_ip+0x118/0x150 [ 30.941928][ C3] __dev_queue_xmit+0x979/0x1b80 [ 30.941931][ C3] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 30.941933][ C3] ? lock_acquire.part.0+0xd4/0x280 [ 30.941934][ C3] ? find_held_lock+0x2b/0x80 [ 30.941936][ C3] ? __lock_release.isra.0+0x69/0x1a0 [ 30.941944][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.941946][ C3] ? mark_held_locks+0x40/0x70 [ 30.941948][ C3] ? __asan_memcpy+0x3c/0x60 [ 30.941950][ C3] ? neigh_hh_output+0x152/0x4c0 [ 30.941952][ C3] ip_finish_output2+0xd9b/0x1bc0 [ 30.941954][ C3] ? ip_dst_mtu_maybe_forward+0x261/0x670 [ 30.941956][ C3] ? ip_fragment.constprop.0+0x2c0/0x2c0 [ 30.941958][ C3] ip_output+0x1ca/0x660 [ 30.941959][ C3] ? ip_finish_output+0x460/0x460 [ 30.941961][ C3] ? find_held_lock+0x2b/0x80 [ 30.941963][ C3] ? __ip_finish_output+0x720/0x720 [ 30.941964][ C3] ? ip4_dst_hoplimit+0x15b/0x320 [ 30.941966][ C3] __ip_queue_xmit+0x774/0x1650 [ 30.941968][ C3] __tcp_transmit_skb+0x1ad9/0x3a70 [ 30.941971][ C3] ? tcp_call_bpf+0x201/0x2e0 [ 30.941973][ C3] ? tcp_clone_payload+0x10b0/0x10b0 [ 30.941975][ C3] ? __tcp_select_window+0xf20/0xf20 [ 30.941977][ C3] ? lockdep_hardirqs_on+0x91/0x130 [ 30.941979][ C3] ? ktime_get+0x18e/0x2d0 [ 30.941980][ C3] ? kvm_clock_get_cycles+0x19/0x30 [ 30.941983][ C3] ? ktime_get+0x1dd/0x2d0 [ 30.941985][ C3] tcp_connect+0xec4/0x1880 [ 30.941987][ C3] tcp_v4_connect+0x12bd/0x1960 [ 30.941990][ C3] ? established_get_first+0x6b0/0x6b0 [ 30.941991][ C3] ? do_raw_spin_lock+0x131/0x280 [ 30.941993][ C3] ? find_held_lock+0x2b/0x80 [ 30.941995][ C3] __inet_stream_connect+0x2ed/0xd00 [ 30.941997][ C3] ? lockdep_hardirqs_on+0x91/0x130 [ 30.941999][ C3] inet_stream_connect+0x59/0xb0 [ 30.942001][ C3] __sys_connect+0x1c1/0x2c0 [ 30.942002][ C3] ? do_fcntl+0x36f/0xc50 [ 30.942005][ C3] ? __sys_connect_file+0x250/0x250 [ 30.942008][ C3] ? fdget_raw+0x4f/0x190 [ 30.942010][ C3] __x64_sys_connect+0x72/0xd0 [ 30.942012][ C3] ? lockdep_hardirqs_on+0x91/0x130 [ 30.942014][ C3] ? do_syscall_64+0xa6/0x570 [ 30.942015][ C3] do_syscall_64+0x10e/0x570 [ 30.942016][ C3] ? exc_page_fault+0xee/0x100 [ 30.942018][ C3] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 30.942020][ C3] RIP: 0033:0x7f74200e054e [ 30.942023][ C3] 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 [ 30.942025][ C3] RSP: 002b:00007ffdcea2d7b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002a [ 30.942027][ C3] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f74200e054e [ 30.942028][ C3] RDX: 0000000000000010 RSI: 00007ffdcea2d840 RDI: 0000000000000005 [ 30.942029][ C3] RBP: 00007ffdcea2d7c0 R08: 0000000000000000 R09: 0000000000000000 [ 30.942030][ C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffdcea2d9b8 [ 30.942031][ C3] R13: 0000000000000005 R14: 00007f74202b1000 R15: 0000000000402e00 [ 30.942033][ C3] [ 30.942037][ C3] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 30.942039][ C3] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 343, name: connect_close [ 30.942040][ C3] preempt_count: 302, expected: 0 [ 30.942041][ C3] RCU nest depth: 6, expected: 0 [ 30.942041][ C3] INFO: lockdep is turned off. [ 30.942042][ C3] irq event stamp: 72495 [ 30.942042][ C3] hardirqs last enabled at (72494): [] __down_trylock_console_sem+0x86/0xa0 [ 30.942045][ C3] hardirqs last disabled at (72495): [] console_emit_next_record+0x3d4/0x4c0 [ 30.942047][ C3] softirqs last enabled at (72478): [] __dev_queue_xmit+0x964/0x1b80 [ 30.942048][ C3] softirqs last disabled at (72479): [] do_softirq+0xac/0xe0 [ 30.942050][ C3] Preemption disabled at: [ 30.942051][ C3] [] __dev_queue_xmit+0x204/0x1b80 [ 30.942053][ C3] CPU: 3 UID: 0 PID: 343 Comm: connect_close Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 30.942055][ C3] Tainted: [W]=WARN [ 30.942056][ C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 30.942056][ C3] Call Trace: [ 30.942057][ C3] [ 30.942057][ C3] dump_stack_lvl+0x6f/0xa0 [ 30.942059][ C3] ? __dev_queue_xmit+0x204/0x1b80 [ 30.942061][ C3] __might_resched.cold+0x1fe/0x2c1 [ 30.942063][ C3] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 30.942066][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.942067][ C3] __kmalloc_noprof+0x443/0x760 [ 30.942069][ C3] ? __rwlock_init+0x150/0x150 [ 30.942071][ C3] ? alloc_buf.isra.0+0x4b/0x260 [ 30.942073][ C3] ? do_raw_spin_unlock+0x59/0x250 [ 30.942074][ C3] alloc_buf.isra.0+0x4b/0x260 [ 30.942076][ C3] put_chars+0x1e1/0x2f0 [ 30.942078][ C3] ? __send_to_port+0x420/0x420 [ 30.942081][ C3] hvc_console_print+0x292/0x780 [ 30.942083][ C3] ? mark_usage+0x42/0x170 [ 30.942085][ C3] ? __lock_acquire+0x388/0xc20 [ 30.942087][ C3] ? hvc_write+0x3a0/0x3a0 [ 30.942088][ C3] ? lock_acquire.part.0+0xd4/0x280 [ 30.942090][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.942091][ C3] ? lock_acquire+0x13c/0x160 [ 30.942093][ C3] console_emit_next_record+0x22f/0x4c0 [ 30.942095][ C3] ? devkmsg_read+0x4b0/0x4b0 [ 30.942096][ C3] ? console_flush_one_record+0x106/0x710 [ 30.942097][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.942099][ C3] ? lock_acquire+0x13c/0x160 [ 30.942101][ C3] console_flush_one_record+0x46f/0x710 [ 30.942102][ C3] ? console_emit_next_record+0x4c0/0x4c0 [ 30.942103][ C3] ? __lock_acquire+0x518/0xc20 [ 30.942106][ C3] console_unlock+0xee/0x1f0 [ 30.942107][ C3] ? console_flush_one_record+0x710/0x710 [ 30.942108][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.942109][ C3] ? lock_acquire+0x60/0x160 [ 30.942111][ C3] ? __down_trylock_console_sem+0x5e/0xa0 [ 30.942113][ C3] ? vprintk_emit+0x320/0x3e0 [ 30.942115][ C3] vprintk_emit+0x37c/0x3e0 [ 30.942116][ C3] ? wake_up_klogd_work_func+0x90/0x90 [ 30.942117][ C3] ? __lock_release.isra.0+0x69/0x1a0 [ 30.942122][ C3] _printk+0xc7/0x100 [ 30.942123][ C3] ? snapshot_read.cold+0x21/0x21 [ 30.942125][ C3] ? ___ratelimit+0x4e7/0xa00 [ 30.942127][ C3] ? idr_get_free+0x830/0x830 [ 30.942129][ C3] tcp_syn_flood_action.cold+0xb4/0xe5 [ 30.942131][ C3] tcp_conn_request+0x13ff/0x2c00 [ 30.942133][ C3] ? reuseport_select_sock+0x19e/0x3c0 [ 30.942135][ C3] ? reuseport_select_sock+0xe1/0x3c0 [ 30.942137][ C3] ? __lock_acquire+0x518/0xc20 [ 30.942138][ C3] ? tcp_get_syncookie_mss+0x300/0x300 [ 30.942140][ C3] ? lock_acquire.part.0+0xd4/0x280 [ 30.942142][ C3] ? __lock_acquire+0x518/0xc20 [ 30.942144][ C3] ? save_trace+0x1f7/0x280 [ 30.942146][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.942147][ C3] ? lock_acquire+0x13c/0x160 [ 30.942149][ C3] ? tcp_rcv_listen_state_process+0x1ab/0x380 [ 30.942151][ C3] tcp_rcv_listen_state_process+0x1ab/0x380 [ 30.942153][ C3] tcp_v4_rcv_listen.constprop.0.isra.0+0x13f/0x4f0 [ 30.942155][ C3] ? tcp_v4_fill_cb+0x33/0x430 [ 30.942157][ C3] tcp_v4_rcv+0x2881/0x2ef0 [ 30.942160][ C3] ? mark_usage+0x61/0x170 [ 30.942161][ C3] ? tcp_add_backlog+0x1e30/0x1e30 [ 30.942163][ C3] ? lock_acquire.part.0+0xd4/0x280 [ 30.942165][ C3] ? ip_local_deliver_finish+0x2ba/0x610 [ 30.942167][ C3] ip_protocol_deliver_rcu+0x82/0x350 [ 30.942168][ C3] ? process_backlog+0x3f1/0x14c0 [ 30.942170][ C3] ip_local_deliver_finish+0x36f/0x610 [ 30.942171][ C3] ip_local_deliver+0x184/0x4c0 [ 30.942173][ C3] ? ip_local_deliver_finish+0x610/0x610 [ 30.942174][ C3] ? ip_protocol_deliver_rcu+0x350/0x350 [ 30.942176][ C3] ? __lock_release.isra.0+0x69/0x1a0 [ 30.942178][ C3] ? process_backlog+0x3f1/0x14c0 [ 30.942179][ C3] ip_rcv+0xdc/0x3d0 [ 30.942181][ C3] ? ip_local_deliver+0x4c0/0x4c0 [ 30.942182][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.942183][ C3] ? ip_rcv_finish_core+0x14c0/0x14c0 [ 30.942185][ C3] ? __lock_acquire+0x518/0xc20 [ 30.942186][ C3] ? perf_trace_rcu_grace_period_init+0x227/0x580 [ 30.942188][ C3] ? process_backlog+0x3f1/0x14c0 [ 30.942189][ C3] __netif_receive_skb_one_core+0xfc/0x180 [ 30.942191][ C3] ? lock_acquire.part.0+0xd4/0x280 [ 30.942193][ C3] ? process_backlog+0x3f1/0x14c0 [ 30.942194][ C3] ? __netif_receive_skb_list_core+0x9e0/0x9e0 [ 30.942196][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.942198][ C3] process_backlog+0x431/0x14c0 [ 30.942200][ C3] __napi_poll+0xa7/0x3b0 [ 30.942202][ C3] net_rx_action+0x513/0xf50 [ 30.942204][ C3] ? __lock_acquire+0x518/0xc20 [ 30.942206][ C3] ? __napi_poll+0x3b0/0x3b0 [ 30.942209][ C3] ? ktime_get_update_offsets_now+0x2a8/0x490 [ 30.942211][ C3] ? mark_held_locks+0x40/0x70 [ 30.942213][ C3] handle_softirqs+0x1d3/0x900 [ 30.942215][ C3] ? _local_bh_enable+0xc0/0xc0 [ 30.942217][ C3] ? do_raw_spin_unlock+0x59/0x250 [ 30.942219][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.942220][ C3] ? __dev_queue_xmit+0x964/0x1b80 [ 30.942222][ C3] do_softirq+0xac/0xe0 [ 30.942223][ C3] [ 30.942224][ C3] [ 30.942224][ C3] __local_bh_enable_ip+0x118/0x150 [ 30.942226][ C3] __dev_queue_xmit+0x979/0x1b80 [ 30.942229][ C3] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 30.942230][ C3] ? lock_acquire.part.0+0xd4/0x280 [ 30.942232][ C3] ? find_held_lock+0x2b/0x80 [ 30.942234][ C3] ? __lock_release.isra.0+0x69/0x1a0 [ 30.942235][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.942236][ C3] ? mark_held_locks+0x40/0x70 [ 30.942238][ C3] ? __asan_memcpy+0x3c/0x60 [ 30.942239][ C3] ? neigh_hh_output+0x152/0x4c0 [ 30.942241][ C3] ip_finish_output2+0xd9b/0x1bc0 [ 30.942243][ C3] ? ip_dst_mtu_maybe_forward+0x261/0x670 [ 30.942245][ C3] ? ip_fragment.constprop.0+0x2c0/0x2c0 [ 30.942247][ C3] ip_output+0x1ca/0x660 [ 30.942249][ C3] ? ip_finish_output+0x460/0x460 [ 30.942250][ C3] ? find_held_lock+0x2b/0x80 [ 30.942252][ C3] ? __ip_finish_output+0x720/0x720 [ 30.942253][ C3] ? ip4_dst_hoplimit+0x15b/0x320 [ 30.942255][ C3] __ip_queue_xmit+0x774/0x1650 [ 30.942257][ C3] __tcp_transmit_skb+0x1ad9/0x3a70 [ 30.942260][ C3] ? tcp_call_bpf+0x201/0x2e0 [ 30.942261][ C3] ? tcp_clone_payload+0x10b0/0x10b0 [ 30.942263][ C3] ? __tcp_select_window+0xf20/0xf20 [ 30.942265][ C3] ? lockdep_hardirqs_on+0x91/0x130 [ 30.942267][ C3] ? ktime_get+0x18e/0x2d0 [ 30.942268][ C3] ? kvm_clock_get_cycles+0x19/0x30 [ 30.942270][ C3] ? ktime_get+0x1dd/0x2d0 [ 30.942272][ C3] tcp_connect+0xec4/0x1880 [ 30.942274][ C3] tcp_v4_connect+0x12bd/0x1960 [ 30.942276][ C3] ? established_get_first+0x6b0/0x6b0 [ 30.942278][ C3] ? do_raw_spin_lock+0x131/0x280 [ 30.942279][ C3] ? find_held_lock+0x2b/0x80 [ 30.942281][ C3] __inet_stream_connect+0x2ed/0xd00 [ 30.942283][ C3] ? lockdep_hardirqs_on+0x91/0x130 [ 30.942285][ C3] inet_stream_connect+0x59/0xb0 [ 30.942287][ C3] __sys_connect+0x1c1/0x2c0 [ 30.942289][ C3] ? do_fcntl+0x36f/0xc50 [ 30.942291][ C3] ? __sys_connect_file+0x250/0x250 [ 30.942293][ C3] ? fdget_raw+0x4f/0x190 [ 30.942295][ C3] __x64_sys_connect+0x72/0xd0 [ 30.942297][ C3] ? lockdep_hardirqs_on+0x91/0x130 [ 30.942298][ C3] ? do_syscall_64+0xa6/0x570 [ 30.942299][ C3] do_syscall_64+0x10e/0x570 [ 30.942301][ C3] ? exc_page_fault+0xee/0x100 [ 30.942303][ C3] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 30.942304][ C3] RIP: 0033:0x7f74200e054e [ 30.942305][ C3] 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 [ 30.942306][ C3] RSP: 002b:00007ffdcea2d7b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002a [ 30.942307][ C3] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f74200e054e [ 30.942308][ C3] RDX: 0000000000000010 RSI: 00007ffdcea2d840 RDI: 0000000000000005 [ 30.942309][ C3] RBP: 00007ffdcea2d7c0 R08: 0000000000000000 R09: 0000000000000000 [ 30.942310][ C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffdcea2d9b8 [ 30.942310][ C3] R13: 0000000000000005 R14: 00007f74202b1000 R15: 0000000000402e00 [ 30.942312][ C3] [ 31.243415][ C0] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 31.307692][ C0] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 31.601071][ C0] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 31.681115][ C2] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 31.855418][ C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 32.256929][ C2] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 32.256954][ C2] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 32.256956][ C2] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 343, name: connect_close [ 32.256958][ C2] preempt_count: 302, expected: 0 [ 32.256959][ C2] RCU nest depth: 6, expected: 0 [ 32.256960][ C2] INFO: lockdep is turned off. [ 32.256961][ C2] irq event stamp: 72495 [ 32.256962][ C2] hardirqs last enabled at (72494): [] __down_trylock_console_sem+0x86/0xa0 [ 32.256971][ C2] hardirqs last disabled at (72495): [] console_emit_next_record+0x3d4/0x4c0 [ 32.256973][ C2] softirqs last enabled at (72478): [] __dev_queue_xmit+0x964/0x1b80 [ 32.256976][ C2] softirqs last disabled at (72479): [] do_softirq+0xac/0xe0 [ 32.256980][ C2] Preemption disabled at: [ 32.256981][ C2] [] __dev_queue_xmit+0x204/0x1b80 [ 32.256987][ C2] CPU: 2 UID: 0 PID: 343 Comm: connect_close Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 32.256991][ C2] Tainted: [W]=WARN [ 32.256991][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 32.256993][ C2] Call Trace: [ 32.256995][ C2] [ 32.256996][ C2] dump_stack_lvl+0x6f/0xa0 [ 32.257001][ C2] ? __dev_queue_xmit+0x204/0x1b80 [ 32.257003][ C2] __might_resched.cold+0x1fe/0x2c1 [ 32.257007][ C2] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 32.257009][ C2] ? prb_next_reserve_seq+0x2d0/0x2d0 [ 32.257011][ C2] ? rcu_is_watching+0x16/0xd0 [ 32.257014][ C2] __kmalloc_noprof+0x443/0x760 [ 32.257017][ C2] ? __rwlock_init+0x150/0x150 [ 32.257020][ C2] ? alloc_buf.isra.0+0x4b/0x260 [ 32.257024][ C2] ? do_raw_spin_unlock+0x59/0x250 [ 32.257026][ C2] alloc_buf.isra.0+0x4b/0x260 [ 32.257028][ C2] put_chars+0x1e1/0x2f0 [ 32.257030][ C2] ? prb_final_commit+0x50/0x50 [ 32.257031][ C2] ? __send_to_port+0x420/0x420 [ 32.257033][ C2] ? printk_get_next_message+0x240/0x650 [ 32.257035][ C2] hvc_console_print+0x292/0x780 [ 32.257039][ C2] ? hvc_write+0x3a0/0x3a0 [ 32.257041][ C2] ? do_raw_spin_lock+0x131/0x280 [ 32.257042][ C2] ? vsnprintf+0x668/0x1700 [ 32.257046][ C2] ? __rwlock_init+0x150/0x150 [ 32.257048][ C2] ? rcu_is_watching+0x16/0xd0 [ 32.257049][ C2] ? lock_acquire+0x13c/0x160 [ 32.257051][ C2] console_emit_next_record+0x22f/0x4c0 [ 32.257054][ C2] ? devkmsg_read+0x4b0/0x4b0 [ 32.257055][ C2] ? rcu_is_watching+0x16/0xd0 [ 32.257056][ C2] ? rcu_is_watching+0x16/0xd0 [ 32.257057][ C2] ? rcu_is_watching+0x16/0xd0 [ 32.257058][ C2] ? lock_acquire+0x13c/0x160 [ 32.257060][ C2] ? console_flush_one_record+0x111/0x710 [ 32.257061][ C2] console_flush_one_record+0x46f/0x710 [ 32.257063][ C2] ? console_emit_next_record+0x4c0/0x4c0 [ 32.257065][ C2] console_unlock+0xee/0x1f0 [ 32.257066][ C2] ? lock_acquire+0x13c/0x160 [ 32.257068][ C2] ? console_flush_one_record+0x710/0x710 [ 32.257069][ C2] ? rcu_is_watching+0x16/0xd0 [ 32.257070][ C2] ? lock_release+0x184/0x1f0 [ 32.257072][ C2] ? lock_acquire+0x60/0x160 [ 32.257073][ C2] ? __rcu_read_lock+0x30/0x70 [ 32.257075][ C2] ? __down_trylock_console_sem+0x5e/0xa0 [ 32.257076][ C2] ? vprintk_emit+0x320/0x3e0 [ 32.257078][ C2] vprintk_emit+0x37c/0x3e0 [ 32.257079][ C2] ? wake_up_klogd_work_func+0x90/0x90 [ 32.257081][ C2] ? do_raw_spin_trylock+0xb6/0x180 [ 32.257083][ C2] ? rcu_is_watching+0x16/0xd0 [ 32.257084][ C2] ? lock_acquire+0x13c/0x160 [ 32.257086][ C2] _printk+0xc7/0x100 [ 32.257089][ C2] ? snapshot_read.cold+0x21/0x21 [ 32.257090][ C2] ? ___ratelimit+0x4e7/0xa00 [ 32.257093][ C2] ? idr_get_free+0x830/0x830 [ 32.257094][ C2] tcp_syn_flood_action.cold+0xb4/0xe5 [ 32.257098][ C2] tcp_conn_request+0x13ff/0x2c00 [ 32.257101][ C2] ? kvm_clock_get_cycles+0x19/0x30 [ 32.257104][ C2] ? lock_acquire+0x13c/0x160 [ 32.257106][ C2] ? rcu_is_watching+0x16/0xd0 [ 32.257107][ C2] ? lock_release+0x184/0x1f0 [ 32.257109][ C2] ? reuseport_select_sock+0xe1/0x3c0 [ 32.257112][ C2] ? tcp_get_syncookie_mss+0x300/0x300 [ 32.257114][ C2] ? rcu_is_watching+0x16/0xd0 [ 32.257116][ C2] ? rcu_is_watching+0x16/0xd0 [ 32.257117][ C2] ? lock_acquire+0x13c/0x160 [ 32.257121][ C2] ? tcp_rcv_listen_state_process+0x1ab/0x380 [ 32.257123][ C2] tcp_rcv_listen_state_process+0x1ab/0x380 [ 32.257125][ C2] tcp_v4_rcv_listen.constprop.0.isra.0+0x13f/0x4f0 [ 32.257127][ C2] ? tcp_v4_fill_cb+0x33/0x430 [ 32.257129][ C2] tcp_v4_rcv+0x2881/0x2ef0 [ 32.257131][ C2] ? tcp_add_backlog+0x1e30/0x1e30 [ 32.257134][ C2] ? rcu_is_watching+0x16/0xd0 [ 32.257135][ C2] ? process_backlog+0x3f1/0x14c0 [ 32.257137][ C2] ip_protocol_deliver_rcu+0x82/0x350 [ 32.257140][ C2] ? process_backlog+0x3f1/0x14c0 [ 32.257141][ C2] ip_local_deliver_finish+0x36f/0x610 [ 32.257142][ C2] ? lock_release+0x184/0x1f0 [ 32.257144][ C2] ip_local_deliver+0x184/0x4c0 [ 32.257146][ C2] ? ip_local_deliver_finish+0x610/0x610 [ 32.257147][ C2] ? ip_protocol_deliver_rcu+0x350/0x350 [ 32.257148][ C2] ? rcu_is_watching+0x16/0xd0 [ 32.257150][ C2] ? process_backlog+0x3f1/0x14c0 [ 32.257152][ C2] ip_rcv+0xdc/0x3d0 [ 32.257153][ C2] ? ip_local_deliver+0x4c0/0x4c0 [ 32.257155][ C2] ? __dev_queue_xmit+0x979/0x1b80 [ 32.257156][ C2] ? ip_output+0x1ca/0x660 [ 32.257158][ C2] ? ip_rcv_finish_core+0x14c0/0x14c0 [ 32.257159][ C2] ? trace_pelt_se_tp+0x9b/0x190 [ 32.257162][ C2] ? do_raw_spin_unlock+0x59/0x250 [ 32.257164][ C2] ? __update_load_avg_se+0x639/0x13a0 [ 32.257166][ C2] ? process_backlog+0x3f1/0x14c0 [ 32.257168][ C2] __netif_receive_skb_one_core+0xfc/0x180 [ 32.257170][ C2] ? update_cfs_rq_load_avg+0x4b/0x660 [ 32.257172][ C2] ? __netif_receive_skb_list_core+0x9e0/0x9e0 [ 32.257173][ C2] ? rcu_is_watching+0x16/0xd0 [ 32.257175][ C2] ? rcu_is_watching+0x16/0xd0 [ 32.257176][ C2] process_backlog+0x431/0x14c0 [ 32.257178][ C2] __napi_poll+0xa7/0x3b0 [ 32.257180][ C2] net_rx_action+0x513/0xf50 [ 32.257183][ C2] ? __napi_poll+0x3b0/0x3b0 [ 32.257185][ C2] ? try_to_wake_up+0x153/0x1130 [ 32.257188][ C2] ? ktime_get_update_offsets_now+0x2a8/0x490 [ 32.257191][ C2] ? rcu_is_watching+0x16/0xd0 [ 32.257192][ C2] handle_softirqs+0x1d3/0x900 [ 32.257194][ C2] ? rcu_is_watching+0x16/0xd0 [ 32.257196][ C2] ? _local_bh_enable+0xc0/0xc0 [ 32.257197][ C2] ? do_raw_spin_unlock+0x59/0x250 [ 32.257199][ C2] ? rcu_is_watching+0x16/0xd0 [ 32.257200][ C2] ? __dev_queue_xmit+0x964/0x1b80 [ 32.257202][ C2] do_softirq+0xac/0xe0 [ 32.257203][ C2] [ 32.257204][ C2] [ 32.257204][ C2] __local_bh_enable_ip+0x118/0x150 [ 32.257206][ C2] __dev_queue_xmit+0x979/0x1b80 [ 32.257209][ C2] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 32.257211][ C2] ? rcu_is_watching+0x16/0xd0 [ 32.257212][ C2] ? lock_acquire+0x13c/0x160 [ 32.257214][ C2] ? rcu_is_watching+0x16/0xd0 [ 32.257215][ C2] ? __asan_memcpy+0x3c/0x60 [ 32.257218][ C2] ? neigh_hh_output+0x152/0x4c0 [ 32.257220][ C2] ip_finish_output2+0xd9b/0x1bc0 [ 32.257221][ C2] ? ip_dst_mtu_maybe_forward+0x7c/0x670 [ 32.257223][ C2] ? ip_dst_mtu_maybe_forward+0x261/0x670 [ 32.257224][ C2] ? ip_fragment.constprop.0+0x2c0/0x2c0 [ 32.257226][ C2] ? rcu_is_watching+0x16/0xd0 [ 32.257228][ C2] ip_output+0x1ca/0x660 [ 32.257229][ C2] ? ip_finish_output+0x460/0x460 [ 32.257231][ C2] ? lock_acquire+0x13c/0x160 [ 32.257232][ C2] ? __ip_finish_output+0x720/0x720 [ 32.257234][ C2] ? lock_acquire+0x13c/0x160 [ 32.257236][ C2] ? rcu_is_watching+0x16/0xd0 [ 32.257237][ C2] ? lock_release+0x184/0x1f0 [ 32.257239][ C2] __ip_queue_xmit+0x774/0x1650 [ 32.257241][ C2] __tcp_transmit_skb+0x1ad9/0x3a70 [ 32.257244][ C2] ? tcp_call_bpf+0x201/0x2e0 [ 32.257245][ C2] ? tcp_clone_payload+0x10b0/0x10b0 [ 32.257247][ C2] ? __tcp_select_window+0xf20/0xf20 [ 32.257249][ C2] ? trace_hardirqs_on+0x36/0x40 [ 32.257252][ C2] ? kvm_clock_get_cycles+0x19/0x30 [ 32.257253][ C2] ? ktime_get+0x1dd/0x2d0 [ 32.257255][ C2] tcp_connect+0xec4/0x1880 [ 32.257258][ C2] tcp_v4_connect+0x12bd/0x1960 [ 32.257260][ C2] ? established_get_first+0x6b0/0x6b0 [ 32.257262][ C2] ? lockdep_init_map_type+0x5d/0x250 [ 32.257263][ C2] ? do_raw_spin_lock+0x131/0x280 [ 32.257265][ C2] ? __rwlock_init+0x150/0x150 [ 32.257267][ C2] __inet_stream_connect+0x2ed/0xd00 [ 32.257270][ C2] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 32.257271][ C2] ? trace_irq_disable.constprop.0+0x9b/0x160 [ 32.257273][ C2] inet_stream_connect+0x59/0xb0 [ 32.257275][ C2] __sys_connect+0x1c1/0x2c0 [ 32.257278][ C2] ? do_fcntl+0x36f/0xc50 [ 32.257281][ C2] ? rcu_is_watching+0x16/0xd0 [ 32.257282][ C2] ? __sys_connect_file+0x250/0x250 [ 32.257285][ C2] ? fdget_raw+0x4f/0x190 [ 32.257287][ C2] __x64_sys_connect+0x72/0xd0 [ 32.257289][ C2] ? trace_hardirqs_on+0x36/0x40 [ 32.257290][ C2] do_syscall_64+0x10e/0x570 [ 32.257292][ C2] ? irq_exit_rcu+0x1a/0x30 [ 32.257294][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 32.257296][ C2] RIP: 0033:0x7f74200e054e [ 32.257299][ 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 [ 32.257301][ C2] RSP: 002b:00007ffdcea2d7b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002a [ 32.257305][ C2] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f74200e054e [ 32.257307][ C2] RDX: 0000000000000010 RSI: 00007ffdcea2d840 RDI: 0000000000000005 [ 32.257307][ C2] RBP: 00007ffdcea2d7c0 R08: 0000000000000000 R09: 0000000000000000 [ 32.257308][ C2] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffdcea2d9b8 [ 32.257309][ C2] R13: 0000000000000005 R14: 00007f74202b1000 R15: 0000000000402e00 [ 32.257311][ C2] [ 32.321045][ C0] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 32.525223][ C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 32.574649][ C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 85.405270][ T983] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this. [ 85.405286][ T983] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 85.405288][ T983] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 983, name: modprobe [ 85.405290][ T983] preempt_count: 1, expected: 0 [ 85.405290][ T983] RCU nest depth: 0, expected: 0 [ 85.405291][ T983] INFO: lockdep is turned off. [ 85.405292][ T983] irq event stamp: 0 [ 85.405293][ T983] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [ 85.405297][ T983] hardirqs last disabled at (0): [] copy_process+0x1d01/0x62c0 [ 85.405303][ T983] softirqs last enabled at (0): [] copy_process+0x1d55/0x62c0 [ 85.405305][ T983] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 85.405307][ T983] Preemption disabled at: [ 85.405307][ T983] [] vprintk_emit+0x31b/0x3e0 [ 85.405314][ T983] CPU: 3 UID: 0 PID: 983 Comm: modprobe Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 85.405318][ T983] Tainted: [W]=WARN [ 85.405319][ T983] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 85.405321][ T983] Call Trace: [ 85.405322][ T983] [ 85.405323][ T983] dump_stack_lvl+0x6f/0xa0 [ 85.405327][ T983] ? vprintk_emit+0x31b/0x3e0 [ 85.405329][ T983] __might_resched.cold+0x1fe/0x2c1 [ 85.405332][ T983] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 85.405334][ T983] ? rcu_is_watching+0x16/0xd0 [ 85.405337][ T983] __kmalloc_noprof+0x443/0x760 [ 85.405341][ T983] ? __rwlock_init+0x150/0x150 [ 85.405344][ T983] ? alloc_buf.isra.0+0x4b/0x260 [ 85.405348][ T983] ? do_raw_spin_unlock+0x59/0x250 [ 85.405350][ T983] alloc_buf.isra.0+0x4b/0x260 [ 85.405352][ T983] put_chars+0x1e1/0x2f0 [ 85.405354][ T983] ? __send_to_port+0x420/0x420 [ 85.405356][ T983] ? console_prepend_replay+0x20/0x20 [ 85.405358][ T983] hvc_console_print+0x292/0x780 [ 85.405362][ T983] ? hvc_write+0x3a0/0x3a0 [ 85.405363][ T983] ? rcu_is_watching+0x16/0xd0 [ 85.405364][ T983] ? rcu_is_watching+0x16/0xd0 [ 85.405366][ T983] ? lock_acquire+0x13c/0x160 [ 85.405368][ T983] console_emit_next_record+0x22f/0x4c0 [ 85.405370][ T983] ? devkmsg_read+0x4b0/0x4b0 [ 85.405372][ T983] ? rcu_is_watching+0x16/0xd0 [ 85.405373][ T983] ? rcu_is_watching+0x16/0xd0 [ 85.405374][ T983] ? rcu_is_watching+0x16/0xd0 [ 85.405375][ T983] ? lock_acquire+0x13c/0x160 [ 85.405377][ T983] ? console_flush_one_record+0x111/0x710 [ 85.405378][ T983] console_flush_one_record+0x46f/0x710 [ 85.405380][ T983] ? console_emit_next_record+0x4c0/0x4c0 [ 85.405382][ T983] console_unlock+0xee/0x1f0 [ 85.405383][ T983] ? lock_acquire+0x13c/0x160 [ 85.405385][ T983] ? console_flush_one_record+0x710/0x710 [ 85.405386][ T983] ? rcu_is_watching+0x16/0xd0 [ 85.405387][ T983] ? lock_release+0x184/0x1f0 [ 85.405388][ T983] ? lock_acquire+0x60/0x160 [ 85.405390][ T983] ? __rcu_read_lock+0x30/0x70 [ 85.405391][ T983] ? __down_trylock_console_sem+0x5e/0xa0 [ 85.405394][ T983] ? vprintk_emit+0x320/0x3e0 [ 85.405395][ T983] vprintk_emit+0x37c/0x3e0 [ 85.405397][ T983] ? wake_up_klogd_work_func+0x90/0x90 [ 85.405399][ T983] ? ww_mutex_lock+0x160/0x160 [ 85.405404][ T983] ? llc_exit+0x3e0/0x3e0 [llc] [ 85.405408][ T983] _printk+0xc7/0x100 [ 85.405412][ T983] ? snapshot_read.cold+0x21/0x21 [ 85.405413][ T983] ? __mutex_unlock_slowpath+0x5e5/0x740 [ 85.405416][ T983] ? _mutex_trylock_nest_lock+0x390/0x390 [ 85.405418][ T983] ? __mutex_unlock_slowpath+0x14d/0x740 [ 85.405420][ T983] br_init+0x98/0xc0 [bridge] [ 85.405432][ T983] do_one_initcall+0x124/0x4f0 [ 85.405435][ T983] ? trace_event_raw_event_initcall_level+0x280/0x280 [ 85.405437][ T983] ? do_init_module+0xae/0x8a0 [ 85.405440][ T983] ? kasan_unpoison+0x44/0x70 [ 85.405443][ T983] do_init_module+0x2ad/0x8a0 [ 85.405445][ T983] ? free_module+0x470/0x470 [ 85.405446][ T983] ? kfree+0x123/0x590 [ 85.405448][ T983] load_module+0x154b/0x1d60 [ 85.405451][ T983] ? layout_and_allocate.isra.0+0x680/0x680 [ 85.405453][ T983] ? backing_file_read_iter+0x541/0x790 [ 85.405457][ T983] init_module_from_file+0x11f/0x1a0 [ 85.405458][ T983] ? __ia32_sys_init_module+0xc0/0xc0 [ 85.405460][ T983] ? ovl_mmap+0x270/0x270 [ 85.405465][ T983] ? __rwlock_init+0x150/0x150 [ 85.405466][ T983] ? rcu_is_watching+0x16/0xd0 [ 85.405468][ T983] ? lock_release+0x184/0x1f0 [ 85.405469][ T983] ? do_raw_spin_unlock+0x59/0x250 [ 85.405471][ T983] idempotent_init_module+0x37b/0x7c0 [ 85.405473][ T983] ? init_module_from_file+0x1a0/0x1a0 [ 85.405475][ T983] ? rcu_is_watching+0x16/0xd0 [ 85.405477][ T983] ? cap_capable+0x1d7/0x3d0 [ 85.405479][ T983] __x64_sys_finit_module+0xdf/0x190 [ 85.405481][ T983] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 85.405484][ T983] do_syscall_64+0x10e/0x570 [ 85.405486][ T983] ? exc_page_fault+0xee/0x100 [ 85.405488][ T983] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 85.405490][ T983] RIP: 0033:0x7fda3c7d137d [ 85.405492][ T983] 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 [ 85.405494][ T983] RSP: 002b:00007ffc430893b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 85.405497][ T983] RAX: ffffffffffffffda RBX: 0000562d00ef2810 RCX: 00007fda3c7d137d [ 85.405499][ T983] RDX: 0000000000000000 RSI: 0000562cc1c77ffd RDI: 0000000000000002 [ 85.405500][ T983] RBP: 00007ffc43089450 R08: 0000000000000000 R09: 0000000000000000 [ 85.405500][ T983] R10: 0000000000000000 R11: 0000000000000246 R12: 0000562cc1c77ffd [ 85.405501][ T983] R13: 0000562d00ef29c0 R14: 0000000000040000 R15: 0000000000000000 [ 85.405503][ T983] [ 85.460830][ T987] br0: port 1(veth0) entered blocking state [ 85.461037][ T987] br0: port 1(veth0) entered disabled state [ 85.461951][ T987] veth0: entered allmulticast mode [ 85.462839][ T987] veth0: entered promiscuous mode [ 85.484374][ T988] br0: port 2(veth1) entered blocking state [ 85.484575][ T988] br0: port 2(veth1) entered disabled state [ 85.484766][ T988] veth1: entered allmulticast mode [ 85.485633][ T988] veth1: entered promiscuous mode [ 85.503213][ T989] br0: port 2(veth1) entered blocking state [ 85.503429][ T989] br0: port 2(veth1) entered forwarding state [ 85.503712][ T989] br0: port 1(veth0) entered blocking state [ 85.503886][ T989] br0: port 1(veth0) entered forwarding state [ 91.514040][ T1007] nf_queue (1007) used greatest stack depth: 23776 bytes left [ 91.514059][ T1007] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 91.514062][ T1007] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 1007, name: nf_queue [ 91.514063][ T1007] preempt_count: 2, expected: 0 [ 91.514064][ T1007] RCU nest depth: 0, expected: 0 [ 91.514065][ T1007] INFO: lockdep is turned off. [ 91.514066][ T1007] irq event stamp: 0 [ 91.514067][ T1007] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [ 91.514072][ T1007] hardirqs last disabled at (0): [] copy_process+0x1d01/0x62c0 [ 91.514079][ T1007] softirqs last enabled at (0): [] copy_process+0x1d55/0x62c0 [ 91.514080][ T1007] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 91.514082][ T1007] Preemption disabled at: [ 91.514083][ T1007] [<0000000000000000>] 0x0 [ 91.514088][ T1007] CPU: 2 UID: 0 PID: 1007 Comm: nf_queue Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 91.514092][ T1007] Tainted: [W]=WARN [ 91.514093][ T1007] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 91.514094][ T1007] Call Trace: [ 91.514096][ T1007] [ 91.514097][ T1007] dump_stack_lvl+0x6f/0xa0 [ 91.514102][ T1007] __might_resched.cold+0x1fe/0x2c1 [ 91.514106][ T1007] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 91.514108][ T1007] ? rcu_is_watching+0x16/0xd0 [ 91.514112][ T1007] __kmalloc_noprof+0x443/0x760 [ 91.514115][ T1007] ? __rwlock_init+0x150/0x150 [ 91.514121][ T1007] ? alloc_buf.isra.0+0x4b/0x260 [ 91.514125][ T1007] ? do_raw_spin_unlock+0x59/0x250 [ 91.514127][ T1007] alloc_buf.isra.0+0x4b/0x260 [ 91.514130][ T1007] put_chars+0x1e1/0x2f0 [ 91.514132][ T1007] ? __send_to_port+0x420/0x420 [ 91.514134][ T1007] ? printk_get_next_message+0x240/0x650 [ 91.514137][ T1007] ? console_prepend_replay+0x20/0x20 [ 91.514139][ T1007] hvc_console_print+0x292/0x780 [ 91.514144][ T1007] ? hvc_write+0x3a0/0x3a0 [ 91.514145][ T1007] ? __rwlock_init+0x150/0x150 [ 91.514148][ T1007] ? lock_acquire+0x13c/0x160 [ 91.514151][ T1007] console_emit_next_record+0x22f/0x4c0 [ 91.514154][ T1007] ? devkmsg_read+0x4b0/0x4b0 [ 91.514155][ T1007] ? rcu_is_watching+0x16/0xd0 [ 91.514156][ T1007] ? rcu_is_watching+0x16/0xd0 [ 91.514157][ T1007] ? rcu_is_watching+0x16/0xd0 [ 91.514164][ T1007] ? lock_acquire+0x13c/0x160 [ 91.514166][ T1007] ? console_flush_one_record+0x111/0x710 [ 91.514167][ T1007] console_flush_one_record+0x46f/0x710 [ 91.514169][ T1007] ? console_emit_next_record+0x4c0/0x4c0 [ 91.514171][ T1007] console_unlock+0xee/0x1f0 [ 91.514172][ T1007] ? lock_acquire+0x13c/0x160 [ 91.514174][ T1007] ? console_flush_one_record+0x710/0x710 [ 91.514175][ T1007] ? rcu_is_watching+0x16/0xd0 [ 91.514177][ T1007] ? lock_release+0x184/0x1f0 [ 91.514178][ T1007] ? lock_acquire+0x60/0x160 [ 91.514180][ T1007] ? __rcu_read_lock+0x30/0x70 [ 91.514182][ T1007] ? __down_trylock_console_sem+0x5e/0xa0 [ 91.514184][ T1007] ? vprintk_emit+0x320/0x3e0 [ 91.514186][ T1007] vprintk_emit+0x37c/0x3e0 [ 91.514187][ T1007] ? wake_up_klogd_work_func+0x90/0x90 [ 91.514189][ T1007] ? do_raw_read_unlock+0x70/0x70 [ 91.514191][ T1007] ? forget_original_parent+0x5c/0xdb0 [ 91.514193][ T1007] _printk+0xc7/0x100 [ 91.514196][ T1007] ? snapshot_read.cold+0x21/0x21 [ 91.514198][ T1007] ? do_raw_spin_lock+0x131/0x280 [ 91.514200][ T1007] ? do_raw_spin_lock+0x131/0x280 [ 91.514202][ T1007] ? __rwlock_init+0x150/0x150 [ 91.514205][ T1007] ? do_raw_spin_lock+0x131/0x280 [ 91.514207][ T1007] do_exit.cold+0x82/0x9c [ 91.514210][ T1007] ? exit_notify+0x890/0x890 [ 91.514212][ T1007] ? posixtimer_sig_unignore.isra.0+0x5f0/0x5f0 [ 91.514214][ T1007] ? rcu_is_watching+0x16/0xd0 [ 91.514216][ T1007] do_group_exit+0xb8/0x370 [ 91.514218][ T1007] __x64_sys_exit_group+0x3c/0x50 [ 91.514220][ T1007] x64_sys_call+0x1567/0x1570 [ 91.514222][ T1007] do_syscall_64+0x10e/0x570 [ 91.514226][ T1007] ? exc_page_fault+0xee/0x100 [ 91.514228][ T1007] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 91.514230][ T1007] RIP: 0033:0x7fab4aa3c1b8 [ 91.514232][ T1007] Code: Unable to access opcode bytes at 0x7fab4aa3c18e. [ 91.514233][ T1007] RSP: 002b:00007ffc77a51738 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 91.514236][ T1007] RAX: ffffffffffffffda RBX: 00007fab4ab6cf88 RCX: 00007fab4aa3c1b8 [ 91.514238][ T1007] RDX: 00007fab4a979a48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 91.514239][ T1007] RBP: 00007ffc77a51790 R08: 0000000000000000 R09: 0000000000000000 [ 91.514240][ T1007] R10: 00007ffc77a515d0 R11: 0000000000000246 R12: 0000000000000001 [ 91.514240][ T1007] R13: 0000000000000000 R14: 00007fab4ab6b680 R15: 00007fab4ab6cfa0 [ 91.514243][ T1007] [ 97.140736][ T1026] nf_queue (1026) used greatest stack depth: 23512 bytes left [ 97.140754][ T1026] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 97.140756][ T1026] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 1026, name: nf_queue [ 97.140758][ T1026] preempt_count: 2, expected: 0 [ 97.140759][ T1026] RCU nest depth: 0, expected: 0 [ 97.140759][ T1026] INFO: lockdep is turned off. [ 97.140761][ T1026] irq event stamp: 0 [ 97.140761][ T1026] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [ 97.140766][ T1026] hardirqs last disabled at (0): [] copy_process+0x1d01/0x62c0 [ 97.140772][ T1026] softirqs last enabled at (0): [] copy_process+0x1d55/0x62c0 [ 97.140774][ T1026] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 97.140776][ T1026] Preemption disabled at: [ 97.140777][ T1026] [<0000000000000000>] 0x0 [ 97.140782][ T1026] CPU: 3 UID: 0 PID: 1026 Comm: nf_queue Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 97.140785][ T1026] Tainted: [W]=WARN [ 97.140786][ T1026] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 97.140788][ T1026] Call Trace: [ 97.140789][ T1026] [ 97.140790][ T1026] dump_stack_lvl+0x6f/0xa0 [ 97.140795][ T1026] __might_resched.cold+0x1fe/0x2c1 [ 97.140799][ T1026] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 97.140802][ T1026] ? rcu_is_watching+0x16/0xd0 [ 97.140805][ T1026] __kmalloc_noprof+0x443/0x760 [ 97.140808][ T1026] ? __rwlock_init+0x150/0x150 [ 97.140811][ T1026] ? alloc_buf.isra.0+0x4b/0x260 [ 97.140815][ T1026] ? do_raw_spin_unlock+0x59/0x250 [ 97.140817][ T1026] alloc_buf.isra.0+0x4b/0x260 [ 97.140819][ T1026] put_chars+0x1e1/0x2f0 [ 97.140821][ T1026] ? __send_to_port+0x420/0x420 [ 97.140822][ T1026] ? printk_get_next_message+0x240/0x650 [ 97.140824][ T1026] ? console_prepend_replay+0x20/0x20 [ 97.140826][ T1026] hvc_console_print+0x292/0x780 [ 97.140830][ T1026] ? hvc_write+0x3a0/0x3a0 [ 97.140831][ T1026] ? __rwlock_init+0x150/0x150 [ 97.140833][ T1026] ? lock_acquire+0x13c/0x160 [ 97.140836][ T1026] console_emit_next_record+0x22f/0x4c0 [ 97.140838][ T1026] ? devkmsg_read+0x4b0/0x4b0 [ 97.140839][ T1026] ? rcu_is_watching+0x16/0xd0 [ 97.140840][ T1026] ? rcu_is_watching+0x16/0xd0 [ 97.140841][ T1026] ? rcu_is_watching+0x16/0xd0 [ 97.140843][ T1026] ? lock_acquire+0x13c/0x160 [ 97.140845][ T1026] ? console_flush_one_record+0x111/0x710 [ 97.140846][ T1026] console_flush_one_record+0x46f/0x710 [ 97.140847][ T1026] ? console_emit_next_record+0x4c0/0x4c0 [ 97.140849][ T1026] console_unlock+0xee/0x1f0 [ 97.140851][ T1026] ? lock_acquire+0x13c/0x160 [ 97.140852][ T1026] ? console_flush_one_record+0x710/0x710 [ 97.140853][ T1026] ? rcu_is_watching+0x16/0xd0 [ 97.140855][ T1026] ? lock_release+0x184/0x1f0 [ 97.140856][ T1026] ? lock_acquire+0x60/0x160 [ 97.140858][ T1026] ? __rcu_read_lock+0x30/0x70 [ 97.140859][ T1026] ? __down_trylock_console_sem+0x5e/0xa0 [ 97.140862][ T1026] ? vprintk_emit+0x320/0x3e0 [ 97.140863][ T1026] vprintk_emit+0x37c/0x3e0 [ 97.140865][ T1026] ? wake_up_klogd_work_func+0x90/0x90 [ 97.140866][ T1026] ? do_raw_read_unlock+0x70/0x70 [ 97.140868][ T1026] ? forget_original_parent+0x5c/0xdb0 [ 97.140870][ T1026] _printk+0xc7/0x100 [ 97.140873][ T1026] ? snapshot_read.cold+0x21/0x21 [ 97.140875][ T1026] ? do_raw_spin_lock+0x131/0x280 [ 97.140876][ T1026] ? do_raw_spin_lock+0x131/0x280 [ 97.140878][ T1026] ? __rwlock_init+0x150/0x150 [ 97.140881][ T1026] ? do_raw_spin_lock+0x131/0x280 [ 97.140882][ T1026] do_exit.cold+0x82/0x9c [ 97.140885][ T1026] ? exit_notify+0x890/0x890 [ 97.140887][ T1026] ? posixtimer_sig_unignore.isra.0+0x5f0/0x5f0 [ 97.140889][ T1026] ? rcu_is_watching+0x16/0xd0 [ 97.140891][ T1026] do_group_exit+0xb8/0x370 [ 97.140893][ T1026] __x64_sys_exit_group+0x3c/0x50 [ 97.140894][ T1026] x64_sys_call+0x1567/0x1570 [ 97.140897][ T1026] do_syscall_64+0x10e/0x570 [ 97.140900][ T1026] ? exc_page_fault+0xee/0x100 [ 97.140902][ T1026] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 97.140904][ T1026] RIP: 0033:0x7f76fab221b8 [ 97.140906][ T1026] Code: Unable to access opcode bytes at 0x7f76fab2218e. [ 97.140907][ T1026] RSP: 002b:00007fffbad4d968 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 97.140910][ T1026] RAX: ffffffffffffffda RBX: 00007f76fac52f88 RCX: 00007f76fab221b8 [ 97.140912][ T1026] RDX: 00007f76faa5fa48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 97.140913][ T1026] RBP: 00007fffbad4d9c0 R08: 0000000000000000 R09: 0000000000000000 [ 97.140914][ T1026] R10: 00007fffbad4d800 R11: 0000000000000246 R12: 0000000000000001 [ 97.140914][ T1026] R13: 0000000000000000 R14: 00007f76fac51680 R15: 00007f76fac52fa0 [ 97.140917][ T1026] [ 97.334500][ T12] br0: port 1(veth0) entered disabled state [ 97.335921][ T12] veth0 (unregistering): left allmulticast mode [ 97.336171][ T12] veth0 (unregistering): left promiscuous mode [ 97.336402][ T12] br0: port 1(veth0) entered disabled state [ 97.412802][ T12] br0: port 2(veth1) entered disabled state [ 97.414217][ T12] veth1 (unregistering): left allmulticast mode [ 97.414408][ T12] veth1 (unregistering): left promiscuous mode [ 97.414588][ T12] br0: port 2(veth1) entered disabled state