[ 10.440512][ T174] sctp: Hash tables configured (bind 32/56) [ 10.440532][ T174] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.440534][ T174] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 174, name: modprobe [ 10.440536][ T174] preempt_count: 1, expected: 0 [ 10.440537][ T174] RCU nest depth: 0, expected: 0 [ 10.440538][ T174] locks held by modprobe/174: 4, last CPU#1: [ 10.440540][ T174] #0: ffffffff91b6a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.440554][ T174] #1: ffffffff91b6a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.440559][ T174] #2: ffffffff91a89de0 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.440563][ T174] #3: ffffffff91a89ce0 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.440567][ T174] irq event stamp: 99636 [ 10.440568][ T174] hardirqs last enabled at (99635): [] __down_trylock_console_sem+0x86/0xa0 [ 10.440571][ T174] hardirqs last disabled at (99636): [] console_emit_next_record+0x3d4/0x4c0 [ 10.440573][ T174] softirqs last enabled at (99098): [] handle_softirqs+0x67c/0x900 [ 10.440576][ T174] softirqs last disabled at (99081): [] __irq_exit_rcu+0x145/0x1c0 [ 10.440579][ T174] Preemption disabled at: [ 10.440579][ T174] [] vprintk_emit+0x31b/0x3e0 [ 10.440586][ T174] CPU: 1 UID: 0 PID: 174 Comm: modprobe Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.440589][ T174] Tainted: [W]=WARN [ 10.440590][ T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.440592][ T174] Call Trace: [ 10.440593][ T174] [ 10.440594][ T174] dump_stack_lvl+0x6f/0xa0 [ 10.440599][ T174] ? vprintk_emit+0x31b/0x3e0 [ 10.440601][ T174] __might_resched.cold+0x1fe/0x2c1 [ 10.440606][ T174] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.440609][ T174] ? __kmalloc_noprof+0xdb/0x760 [ 10.440614][ T174] __kmalloc_noprof+0x443/0x760 [ 10.440617][ T174] ? alloc_buf.isra.0+0x4b/0x260 [ 10.440623][ T174] ? do_raw_spin_unlock+0x59/0x250 [ 10.440626][ T174] alloc_buf.isra.0+0x4b/0x260 [ 10.440630][ T174] put_chars+0x1e1/0x2f0 [ 10.440632][ T174] ? __send_to_port+0x420/0x420 [ 10.440634][ T174] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.440638][ T174] ? rcu_read_lock_any_held+0x3c/0x90 [ 10.440641][ T174] ? validate_chain+0x38b/0xc20 [ 10.440646][ T174] hvc_console_print+0x292/0x780 [ 10.440649][ T174] ? __lock_acquire+0x518/0xc20 [ 10.440655][ T174] ? hvc_write+0x3a0/0x3a0 [ 10.440658][ T174] ? rcu_is_watching+0x16/0xd0 [ 10.440662][ T174] console_emit_next_record+0x22f/0x4c0 [ 10.440666][ T174] ? devkmsg_read+0x4b0/0x4b0 [ 10.440667][ T174] ? console_flush_one_record+0x106/0x710 [ 10.440670][ T174] ? rcu_is_watching+0x16/0xd0 [ 10.440672][ T174] ? lock_acquire+0x13c/0x160 [ 10.440676][ T174] console_flush_one_record+0x46f/0x710 [ 10.440680][ T174] ? console_emit_next_record+0x4c0/0x4c0 [ 10.440681][ T174] ? __lock_acquire+0x518/0xc20 [ 10.440687][ T174] console_unlock+0xee/0x1f0 [ 10.440689][ T174] ? console_flush_one_record+0x710/0x710 [ 10.440691][ T174] ? rcu_is_watching+0x16/0xd0 [ 10.440692][ T174] ? lock_acquire+0x60/0x160 [ 10.440696][ T174] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.440698][ T174] ? vprintk_emit+0x320/0x3e0 [ 10.440701][ T174] vprintk_emit+0x37c/0x3e0 [ 10.440705][ T174] ? wake_up_klogd_work_func+0x90/0x90 [ 10.440706][ T174] ? lockdep_hardirqs_on+0x91/0x130 [ 10.440712][ T174] ? lookup_object_or_alloc.part.0+0x580/0x580 [ 10.440718][ T174] _printk+0xc7/0x100 [ 10.440722][ T174] ? snapshot_read.cold+0x21/0x21 [ 10.440725][ T174] ? lockdep_init_map_type+0x5d/0x250 [ 10.440728][ T174] ? __rhashtable_init_noprof+0x451/0x7f0 [ 10.440734][ T174] sctp_init+0x43b/0x600 [sctp] [ 10.440760][ T174] ? udp_tunnel_nic_cleanup_module+0xb40/0xb40 [udp_tunnel] [ 10.440763][ T174] do_one_initcall+0x124/0x4f0 [ 10.440766][ T174] ? trace_event_raw_event_initcall_level+0x280/0x280 [ 10.440771][ T174] ? do_init_module+0xae/0x8a0 [ 10.440774][ T174] ? kasan_unpoison+0x44/0x70 [ 10.440779][ T174] do_init_module+0x2ad/0x8a0 [ 10.440782][ T174] ? lockdep_hardirqs_on+0x91/0x130 [ 10.440785][ T174] ? free_module+0x470/0x470 [ 10.440787][ T174] ? kfree+0x123/0x590 [ 10.440792][ T174] load_module+0x154b/0x1d60 [ 10.440799][ T174] ? layout_and_allocate.isra.0+0x680/0x680 [ 10.440804][ T174] ? backing_file_read_iter+0x541/0x790 [ 10.440807][ T174] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.440811][ T174] init_module_from_file+0x11f/0x1a0 [ 10.440814][ T174] ? __ia32_sys_init_module+0xc0/0xc0 [ 10.440821][ T174] ? __rwlock_init+0x150/0x150 [ 10.440825][ T174] ? do_raw_spin_unlock+0x59/0x250 [ 10.440829][ T174] idempotent_init_module+0x37b/0x7c0 [ 10.440832][ T174] ? init_module_from_file+0x1a0/0x1a0 [ 10.440838][ T174] ? rcu_is_watching+0x16/0xd0 [ 10.440840][ T174] ? cap_capable+0x1d7/0x3d0 [ 10.440845][ T174] __x64_sys_finit_module+0xdf/0x190 [ 10.440846][ T174] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 10.440850][ T174] do_syscall_64+0x10e/0x570 [ 10.440852][ T174] ? exc_page_fault+0xee/0x100 [ 10.440855][ T174] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.440857][ T174] RIP: 0033:0x7fccc19c937d [ 10.440861][ T174] 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 [ 10.440863][ T174] RSP: 002b:00007fff0a301c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 10.440865][ T174] RAX: ffffffffffffffda RBX: 0000561e526199c0 RCX: 00007fccc19c937d [ 10.440867][ T174] RDX: 0000000000000000 RSI: 0000561e3de83ffd RDI: 0000000000000007 [ 10.440868][ T174] RBP: 00007fff0a301d10 R08: 0000000000000000 R09: 0000000000000000 [ 10.440869][ T174] R10: 0000000000000000 R11: 0000000000000246 R12: 0000561e3de83ffd [ 10.440870][ T174] R13: 0000561e52619ae0 R14: 0000000000040000 R15: 0000000000000000 [ 10.440877][ T174] [ 11.407481][ T206] ip (206) used greatest stack depth: 24048 bytes left [ 30.897882][ C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 30.897919][ C3] [ 30.897920][ C3] ======================================================== [ 30.897921][ C3] WARNING: possible irq lock inversion dependency detected [ 30.897924][ C3] 7.2.0-virtme #1 Tainted: G W [ 30.897925][ C3] -------------------------------------------------------- [ 30.897926][ C3] connect_close/346 just changed the state of lock: [ 30.897927][ C3] ffffffff91a89de0 (console_owner){..-.}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 30.897939][ C3] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 30.897940][ C3] (fs_reclaim){+.+.}-{0:0} [ 30.897942][ C3] [ 30.897942][ C3] [ 30.897942][ C3] and interrupts could create inverse lock ordering between them. [ 30.897942][ C3] [ 30.897943][ C3] [ 30.897943][ C3] other info that might help us debug this: [ 30.897943][ C3] Possible interrupt unsafe locking scenario: [ 30.897943][ C3] [ 30.897944][ C3] CPU0 CPU1 [ 30.897945][ C3] ---- ---- [ 30.897945][ C3] lock(fs_reclaim); [ 30.897946][ C3] local_irq_disable(); [ 30.897946][ C3] lock(console_owner); [ 30.897947][ C3] lock(fs_reclaim); [ 30.897948][ C3] [ 30.897949][ C3] lock(console_owner); [ 30.897950][ C3] [ 30.897950][ C3] *** DEADLOCK *** [ 30.897950][ C3] [ 30.897950][ C3] locks held by connect_close/346: 9, last CPU#3: [ 30.897951][ C3] #0: ff11000010306110 (sk_lock-AF_INET){+.+.}-{0:0}, at: inet_stream_connect+0x44/0xb0 [ 30.897958][ C3] #1: ffffffff91b81280 (rcu_read_lock){....}-{1:3}, at: __ip_queue_xmit+0x63/0x1650 [ 30.897962][ C3] #2: ffffffff91b81280 (rcu_read_lock){....}-{1:3}, at: ip_output+0xa9/0x660 [ 30.897966][ C3] #3: ffffffff91b81280 (rcu_read_lock){....}-{1:3}, at: ip_finish_output2+0x25c/0x1bc0 [ 30.897969][ C3] #4: ffffffff91b81280 (rcu_read_lock){....}-{1:3}, at: process_backlog+0x3f1/0x14c0 [ 30.897974][ C3] #5: ffffffff91b81280 (rcu_read_lock){....}-{1:3}, at: ip_local_deliver_finish+0x2ba/0x610 [ 30.897977][ C3] #6: ffffffff91b81280 (rcu_read_lock){....}-{1:3}, at: tcp_rcv_listen_state_process+0x108/0x380 [ 30.897981][ C3] #7: ffffffff91b6a440 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 30.897984][ C3] #8: ffffffff91b6a4b8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 30.897987][ C3] [ 30.897987][ C3] the shortest dependencies between 2nd lock and 1st lock: [ 30.897992][ C3] -> (fs_reclaim){+.+.}-{0:0} { [ 30.897995][ C3] HARDIRQ-ON-W at: [ 30.897996][ C3] __lock_acquire+0x388/0xc20 [ 30.898000][ C3] lock_acquire.part.0+0xd4/0x280 [ 30.898002][ C3] fs_reclaim_acquire+0xd5/0x120 [ 30.898005][ C3] __kmalloc_cache_noprof+0x6e/0x620 [ 30.898007][ C3] kthread_create_worker_on_node+0xea/0x210 [ 30.898011][ C3] workqueue_init+0x2a/0x680 [ 30.898014][ C3] kernel_init_freeable+0x2fe/0x630 [ 30.898017][ C3] kernel_init+0x21/0x150 [ 30.898020][ C3] ret_from_fork+0x4a4/0x720 [ 30.898023][ C3] ret_from_fork_asm+0x11/0x20 [ 30.898026][ C3] SOFTIRQ-ON-W at: [ 30.898027][ C3] __lock_acquire+0x388/0xc20 [ 30.898029][ C3] lock_acquire.part.0+0xd4/0x280 [ 30.898030][ C3] fs_reclaim_acquire+0xd5/0x120 [ 30.898031][ C3] __kmalloc_cache_noprof+0x6e/0x620 [ 30.898033][ C3] kthread_create_worker_on_node+0xea/0x210 [ 30.898035][ C3] workqueue_init+0x2a/0x680 [ 30.898036][ C3] kernel_init_freeable+0x2fe/0x630 [ 30.898037][ C3] kernel_init+0x21/0x150 [ 30.898039][ C3] ret_from_fork+0x4a4/0x720 [ 30.898040][ C3] ret_from_fork_asm+0x11/0x20 [ 30.898041][ C3] INITIAL USE at: [ 30.898042][ C3] __lock_acquire+0x388/0xc20 [ 30.898044][ C3] lock_acquire.part.0+0xd4/0x280 [ 30.898045][ C3] fs_reclaim_acquire+0xd5/0x120 [ 30.898047][ C3] __kmalloc_cache_noprof+0x6e/0x620 [ 30.898048][ C3] kthread_create_worker_on_node+0xea/0x210 [ 30.898050][ C3] workqueue_init+0x2a/0x680 [ 30.898051][ C3] kernel_init_freeable+0x2fe/0x630 [ 30.898053][ C3] kernel_init+0x21/0x150 [ 30.898054][ C3] ret_from_fork+0x4a4/0x720 [ 30.898055][ C3] ret_from_fork_asm+0x11/0x20 [ 30.898056][ C3] } [ 30.898057][ C3] ... key at: [] __fs_reclaim_map+0x0/0xbe0 [ 30.898062][ C3] ... acquired at: [ 30.898063][ C3] __lock_acquire+0x518/0xc20 [ 30.898064][ C3] lock_acquire.part.0+0xd4/0x280 [ 30.898066][ C3] fs_reclaim_acquire+0xd5/0x120 [ 30.898067][ C3] __kmalloc_noprof+0xd3/0x760 [ 30.898068][ C3] alloc_buf.isra.0+0x4b/0x260 [ 30.898072][ C3] put_chars+0x1e1/0x2f0 [ 30.898073][ C3] hvc_console_print+0x292/0x780 [ 30.898076][ C3] console_emit_next_record+0x22f/0x4c0 [ 30.898077][ C3] console_flush_one_record+0x46f/0x710 [ 30.898078][ C3] console_unlock+0xee/0x1f0 [ 30.898079][ C3] vprintk_emit+0x37c/0x3e0 [ 30.898080][ C3] _printk+0xc7/0x100 [ 30.898083][ C3] ioam6_init+0x48/0x50 [ 30.898086][ C3] inet6_init+0x2d4/0x3c0 [ 30.898087][ C3] do_one_initcall+0x124/0x4f0 [ 30.898089][ C3] kernel_init_freeable+0x596/0x630 [ 30.898090][ C3] kernel_init+0x21/0x150 [ 30.898091][ C3] ret_from_fork+0x4a4/0x720 [ 30.898099][ C3] ret_from_fork_asm+0x11/0x20 [ 30.898100][ C3] [ 30.898101][ C3] -> (console_owner){..-.}-{0:0} { [ 30.898102][ C3] IN-SOFTIRQ-W at: [ 30.898103][ C3] __lock_acquire+0x388/0xc20 [ 30.898105][ C3] lock_acquire.part.0+0xd4/0x280 [ 30.898107][ C3] console_lock_spinning_enable+0x5c/0x60 [ 30.898108][ C3] console_emit_next_record+0x1d1/0x4c0 [ 30.898109][ C3] console_flush_one_record+0x46f/0x710 [ 30.898110][ C3] console_unlock+0xee/0x1f0 [ 30.898111][ C3] vprintk_emit+0x37c/0x3e0 [ 30.898112][ C3] _printk+0xc7/0x100 [ 30.898113][ C3] tcp_syn_flood_action.cold+0xb4/0xe5 [ 30.898116][ C3] tcp_conn_request+0x13ff/0x2c00 [ 30.898118][ C3] tcp_rcv_listen_state_process+0x1ab/0x380 [ 30.898120][ C3] tcp_v4_rcv_listen.constprop.0.isra.0+0x13f/0x4f0 [ 30.898122][ C3] tcp_v4_rcv+0x2881/0x2ef0 [ 30.898123][ C3] ip_protocol_deliver_rcu+0x82/0x350 [ 30.898124][ C3] ip_local_deliver_finish+0x36f/0x610 [ 30.898126][ C3] ip_local_deliver+0x184/0x4c0 [ 30.898127][ C3] ip_rcv+0xdc/0x3d0 [ 30.898128][ C3] __netif_receive_skb_one_core+0xfc/0x180 [ 30.898130][ C3] process_backlog+0x431/0x14c0 [ 30.898131][ C3] __napi_poll+0xa7/0x3b0 [ 30.898133][ C3] net_rx_action+0x513/0xf50 [ 30.898134][ C3] handle_softirqs+0x1d3/0x900 [ 30.898137][ C3] do_softirq+0xac/0xe0 [ 30.898138][ C3] __local_bh_enable_ip+0x118/0x150 [ 30.898140][ C3] __dev_queue_xmit+0x979/0x1b80 [ 30.898141][ C3] ip_finish_output2+0xd9b/0x1bc0 [ 30.898142][ C3] ip_output+0x1ca/0x660 [ 30.898144][ C3] __ip_queue_xmit+0x774/0x1650 [ 30.898145][ C3] __tcp_transmit_skb+0x1ad9/0x3a70 [ 30.898147][ C3] tcp_connect+0xec4/0x1880 [ 30.898149][ C3] tcp_v4_connect+0x12bd/0x1960 [ 30.898150][ C3] __inet_stream_connect+0x2ed/0xd00 [ 30.898151][ C3] inet_stream_connect+0x59/0xb0 [ 30.898153][ C3] __sys_connect+0x1c1/0x2c0 [ 30.898156][ C3] __x64_sys_connect+0x72/0xd0 [ 30.898157][ C3] do_syscall_64+0x10e/0x570 [ 30.898159][ C3] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 30.898161][ C3] INITIAL USE at: [ 30.898162][ C3] } [ 30.898162][ C3] ... key at: [] console_owner_dep_map+0x0/0x60 [ 30.898166][ C3] ... acquired at: [ 30.898166][ C3] mark_lock+0x1d7/0xa00 [ 30.898168][ C3] mark_usage+0x42/0x170 [ 30.898169][ C3] __lock_acquire+0x388/0xc20 [ 30.898171][ C3] lock_acquire.part.0+0xd4/0x280 [ 30.898172][ C3] console_lock_spinning_enable+0x5c/0x60 [ 30.898174][ C3] console_emit_next_record+0x1d1/0x4c0 [ 30.898175][ C3] console_flush_one_record+0x46f/0x710 [ 30.898176][ C3] console_unlock+0xee/0x1f0 [ 30.898176][ C3] vprintk_emit+0x37c/0x3e0 [ 30.898177][ C3] _printk+0xc7/0x100 [ 30.898179][ C3] tcp_syn_flood_action.cold+0xb4/0xe5 [ 30.898181][ C3] tcp_conn_request+0x13ff/0x2c00 [ 30.898182][ C3] tcp_rcv_listen_state_process+0x1ab/0x380 [ 30.898184][ C3] tcp_v4_rcv_listen.constprop.0.isra.0+0x13f/0x4f0 [ 30.898185][ C3] tcp_v4_rcv+0x2881/0x2ef0 [ 30.898186][ C3] ip_protocol_deliver_rcu+0x82/0x350 [ 30.898187][ C3] ip_local_deliver_finish+0x36f/0x610 [ 30.898189][ C3] ip_local_deliver+0x184/0x4c0 [ 30.898190][ C3] ip_rcv+0xdc/0x3d0 [ 30.898191][ C3] __netif_receive_skb_one_core+0xfc/0x180 [ 30.898192][ C3] process_backlog+0x431/0x14c0 [ 30.898194][ C3] __napi_poll+0xa7/0x3b0 [ 30.898195][ C3] net_rx_action+0x513/0xf50 [ 30.898197][ C3] handle_softirqs+0x1d3/0x900 [ 30.898198][ C3] do_softirq+0xac/0xe0 [ 30.898200][ C3] __local_bh_enable_ip+0x118/0x150 [ 30.898201][ C3] __dev_queue_xmit+0x979/0x1b80 [ 30.898203][ C3] ip_finish_output2+0xd9b/0x1bc0 [ 30.898204][ C3] ip_output+0x1ca/0x660 [ 30.898205][ C3] __ip_queue_xmit+0x774/0x1650 [ 30.898207][ C3] __tcp_transmit_skb+0x1ad9/0x3a70 [ 30.898208][ C3] tcp_connect+0xec4/0x1880 [ 30.898210][ C3] tcp_v4_connect+0x12bd/0x1960 [ 30.898211][ C3] __inet_stream_connect+0x2ed/0xd00 [ 30.898213][ C3] inet_stream_connect+0x59/0xb0 [ 30.898215][ C3] __sys_connect+0x1c1/0x2c0 [ 30.898216][ C3] __x64_sys_connect+0x72/0xd0 [ 30.898217][ C3] do_syscall_64+0x10e/0x570 [ 30.898219][ C3] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 30.898220][ C3] [ 30.898220][ C3] [ 30.898220][ C3] stack backtrace: [ 30.898223][ C3] CPU: 3 UID: 0 PID: 346 Comm: connect_close Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 30.898226][ C3] Tainted: [W]=WARN [ 30.898227][ C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 30.898229][ C3] Call Trace: [ 30.898230][ C3] [ 30.898232][ C3] dump_stack_lvl+0x6f/0xa0 [ 30.898235][ C3] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 30.898237][ C3] mark_lock_irq+0x989/0x9c0 [ 30.898241][ C3] mark_lock+0x1d7/0xa00 [ 30.898243][ C3] mark_usage+0x42/0x170 [ 30.898245][ C3] __lock_acquire+0x388/0xc20 [ 30.898247][ C3] lock_acquire.part.0+0xd4/0x280 [ 30.898249][ C3] ? console_lock_spinning_enable+0x40/0x60 [ 30.898251][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.898254][ C3] ? lock_acquire+0x13c/0x160 [ 30.898256][ C3] console_lock_spinning_enable+0x5c/0x60 [ 30.898257][ C3] ? console_lock_spinning_enable+0x40/0x60 [ 30.898258][ C3] console_emit_next_record+0x1d1/0x4c0 [ 30.898260][ C3] ? devkmsg_read+0x4b0/0x4b0 [ 30.898261][ C3] ? console_flush_one_record+0x106/0x710 [ 30.898262][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.898264][ C3] ? lock_acquire+0x13c/0x160 [ 30.898266][ C3] console_flush_one_record+0x46f/0x710 [ 30.898268][ C3] ? console_emit_next_record+0x4c0/0x4c0 [ 30.898269][ C3] ? __lock_acquire+0x518/0xc20 [ 30.898271][ C3] console_unlock+0xee/0x1f0 [ 30.898273][ C3] ? console_flush_one_record+0x710/0x710 [ 30.898274][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.898275][ C3] ? lock_acquire+0x60/0x160 [ 30.898278][ C3] ? __down_trylock_console_sem+0x5e/0xa0 [ 30.898280][ C3] ? vprintk_emit+0x320/0x3e0 [ 30.898281][ C3] vprintk_emit+0x37c/0x3e0 [ 30.898283][ C3] ? wake_up_klogd_work_func+0x90/0x90 [ 30.898285][ C3] ? __lock_release.isra.0+0x69/0x1a0 [ 30.898287][ C3] _printk+0xc7/0x100 [ 30.898289][ C3] ? snapshot_read.cold+0x21/0x21 [ 30.898290][ C3] ? ___ratelimit+0x4e7/0xa00 [ 30.898293][ C3] ? idr_get_free+0x830/0x830 [ 30.898295][ C3] tcp_syn_flood_action.cold+0xb4/0xe5 [ 30.898298][ C3] tcp_conn_request+0x13ff/0x2c00 [ 30.898299][ C3] ? clockevents_program_event+0x307/0x7e0 [ 30.898303][ C3] ? reuseport_select_sock+0x19e/0x3c0 [ 30.898306][ C3] ? reuseport_select_sock+0xe1/0x3c0 [ 30.898308][ C3] ? __lock_acquire+0x518/0xc20 [ 30.898309][ C3] ? tcp_get_syncookie_mss+0x300/0x300 [ 30.898311][ C3] ? lock_acquire.part.0+0xd4/0x280 [ 30.898313][ C3] ? __lock_acquire+0x518/0xc20 [ 30.898315][ C3] ? save_trace+0x1f7/0x280 [ 30.898318][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.898319][ C3] ? lock_acquire+0x13c/0x160 [ 30.898321][ C3] ? tcp_rcv_listen_state_process+0x1ab/0x380 [ 30.898323][ C3] tcp_rcv_listen_state_process+0x1ab/0x380 [ 30.898325][ C3] tcp_v4_rcv_listen.constprop.0.isra.0+0x13f/0x4f0 [ 30.898326][ C3] ? tcp_v4_fill_cb+0x33/0x430 [ 30.898328][ C3] tcp_v4_rcv+0x2881/0x2ef0 [ 30.898330][ C3] ? mark_usage+0x61/0x170 [ 30.898332][ C3] ? tcp_add_backlog+0x1e30/0x1e30 [ 30.898334][ C3] ? lock_acquire.part.0+0xd4/0x280 [ 30.898336][ C3] ? ip_local_deliver_finish+0x2ba/0x610 [ 30.898338][ C3] ip_protocol_deliver_rcu+0x82/0x350 [ 30.898340][ C3] ? process_backlog+0x3f1/0x14c0 [ 30.898341][ C3] ip_local_deliver_finish+0x36f/0x610 [ 30.898343][ C3] ip_local_deliver+0x184/0x4c0 [ 30.898345][ C3] ? ip_local_deliver_finish+0x610/0x610 [ 30.898346][ C3] ? ip_protocol_deliver_rcu+0x350/0x350 [ 30.898348][ C3] ? __lock_release.isra.0+0x69/0x1a0 [ 30.898350][ C3] ? process_backlog+0x3f1/0x14c0 [ 30.898352][ C3] ip_rcv+0xdc/0x3d0 [ 30.898353][ C3] ? ip_local_deliver+0x4c0/0x4c0 [ 30.898354][ C3] ? rcu_read_lock_any_held+0x3c/0x90 [ 30.898357][ C3] ? ip_rcv_finish_core+0x14c0/0x14c0 [ 30.898359][ C3] ? __lock_acquire+0x518/0xc20 [ 30.898360][ C3] ? perf_trace_rcu_grace_period_init+0x227/0x580 [ 30.898363][ C3] ? process_backlog+0x3f1/0x14c0 [ 30.898364][ C3] __netif_receive_skb_one_core+0xfc/0x180 [ 30.898366][ C3] ? lock_acquire.part.0+0xd4/0x280 [ 30.898368][ C3] ? process_backlog+0x3f1/0x14c0 [ 30.898370][ C3] ? __netif_receive_skb_list_core+0x9e0/0x9e0 [ 30.898371][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.898373][ C3] process_backlog+0x431/0x14c0 [ 30.898376][ C3] __napi_poll+0xa7/0x3b0 [ 30.898378][ C3] net_rx_action+0x513/0xf50 [ 30.898380][ C3] ? __lock_acquire+0x518/0xc20 [ 30.898382][ C3] ? __napi_poll+0x3b0/0x3b0 [ 30.898386][ C3] ? ktime_get_update_offsets_now+0x2a8/0x490 [ 30.898389][ C3] ? mark_held_locks+0x40/0x70 [ 30.898391][ C3] handle_softirqs+0x1d3/0x900 [ 30.898393][ C3] ? _local_bh_enable+0xc0/0xc0 [ 30.898395][ C3] ? do_raw_spin_unlock+0x59/0x250 [ 30.898397][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.898398][ C3] ? __dev_queue_xmit+0x964/0x1b80 [ 30.898400][ C3] do_softirq+0xac/0xe0 [ 30.898402][ C3] [ 30.898402][ C3] [ 30.898403][ C3] __local_bh_enable_ip+0x118/0x150 [ 30.898404][ C3] __dev_queue_xmit+0x979/0x1b80 [ 30.898407][ C3] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 30.898409][ C3] ? lock_acquire.part.0+0xd4/0x280 [ 30.898411][ C3] ? find_held_lock+0x2b/0x80 [ 30.898413][ C3] ? __lock_release.isra.0+0x69/0x1a0 [ 30.898415][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.898416][ C3] ? mark_held_locks+0x40/0x70 [ 30.898418][ C3] ? __asan_memcpy+0x3c/0x60 [ 30.898420][ C3] ? neigh_hh_output+0x152/0x4c0 [ 30.898422][ C3] ip_finish_output2+0xd9b/0x1bc0 [ 30.898424][ C3] ? ip_dst_mtu_maybe_forward+0x261/0x670 [ 30.898426][ C3] ? ip_fragment.constprop.0+0x2c0/0x2c0 [ 30.898428][ C3] ip_output+0x1ca/0x660 [ 30.898430][ C3] ? ip_finish_output+0x460/0x460 [ 30.898432][ C3] ? find_held_lock+0x2b/0x80 [ 30.898433][ C3] ? __ip_finish_output+0x720/0x720 [ 30.898435][ C3] ? ip4_dst_hoplimit+0x15b/0x320 [ 30.898437][ C3] __ip_queue_xmit+0x774/0x1650 [ 30.898439][ C3] __tcp_transmit_skb+0x1ad9/0x3a70 [ 30.898442][ C3] ? tcp_call_bpf+0x201/0x2e0 [ 30.898444][ C3] ? tcp_clone_payload+0x10b0/0x10b0 [ 30.898446][ C3] ? __tcp_select_window+0xf20/0xf20 [ 30.898448][ C3] ? lockdep_hardirqs_on+0x91/0x130 [ 30.898451][ C3] ? ktime_get+0x18e/0x2d0 [ 30.898452][ C3] ? kvm_clock_get_cycles+0x19/0x30 [ 30.898455][ C3] ? ktime_get+0x1dd/0x2d0 [ 30.898457][ C3] tcp_connect+0xec4/0x1880 [ 30.898460][ C3] tcp_v4_connect+0x12bd/0x1960 [ 30.898462][ C3] ? established_get_first+0x6b0/0x6b0 [ 30.898466][ C3] ? do_raw_spin_lock+0x131/0x280 [ 30.898468][ C3] ? find_held_lock+0x2b/0x80 [ 30.898470][ C3] __inet_stream_connect+0x2ed/0xd00 [ 30.898472][ C3] ? lockdep_hardirqs_on+0x91/0x130 [ 30.898474][ C3] inet_stream_connect+0x59/0xb0 [ 30.898476][ C3] __sys_connect+0x1c1/0x2c0 [ 30.898478][ C3] ? do_fcntl+0x36f/0xc50 [ 30.898481][ C3] ? __sys_connect_file+0x250/0x250 [ 30.898485][ C3] ? fdget_raw+0x4f/0x190 [ 30.898487][ C3] __x64_sys_connect+0x72/0xd0 [ 30.898488][ C3] ? lockdep_hardirqs_on+0x91/0x130 [ 30.898490][ C3] ? do_syscall_64+0xa6/0x570 [ 30.898492][ C3] do_syscall_64+0x10e/0x570 [ 30.898493][ C3] ? exc_page_fault+0xee/0x100 [ 30.898495][ C3] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 30.898497][ C3] RIP: 0033:0x7fbb29b4454e [ 30.898500][ 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 [ 30.898502][ C3] RSP: 002b:00007fff2c8d8df0 EFLAGS: 00000202 ORIG_RAX: 000000000000002a [ 30.898504][ C3] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fbb29b4454e [ 30.898506][ C3] RDX: 0000000000000010 RSI: 00007fff2c8d8e80 RDI: 0000000000000005 [ 30.898507][ C3] RBP: 00007fff2c8d8e00 R08: 0000000000000000 R09: 0000000000000000 [ 30.898508][ C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff2c8d8ff8 [ 30.898508][ C3] R13: 0000000000000005 R14: 00007fbb29d15000 R15: 0000000000402e00 [ 30.898511][ C3] [ 30.898515][ C3] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 30.898516][ C3] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 346, name: connect_close [ 30.898518][ C3] preempt_count: 302, expected: 0 [ 30.898518][ C3] RCU nest depth: 6, expected: 0 [ 30.898519][ C3] INFO: lockdep is turned off. [ 30.898519][ C3] irq event stamp: 266339 [ 30.898520][ C3] hardirqs last enabled at (266338): [] __down_trylock_console_sem+0x86/0xa0 [ 30.898523][ C3] hardirqs last disabled at (266339): [] console_emit_next_record+0x3d4/0x4c0 [ 30.898524][ C3] softirqs last enabled at (266322): [] __dev_queue_xmit+0x964/0x1b80 [ 30.898526][ C3] softirqs last disabled at (266323): [] do_softirq+0xac/0xe0 [ 30.898528][ C3] Preemption disabled at: [ 30.898528][ C3] [] __dev_queue_xmit+0x204/0x1b80 [ 30.898531][ C3] CPU: 3 UID: 0 PID: 346 Comm: connect_close Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 30.898533][ C3] Tainted: [W]=WARN [ 30.898534][ C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 30.898534][ C3] Call Trace: [ 30.898535][ C3] [ 30.898535][ C3] dump_stack_lvl+0x6f/0xa0 [ 30.898537][ C3] ? __dev_queue_xmit+0x204/0x1b80 [ 30.898539][ C3] __might_resched.cold+0x1fe/0x2c1 [ 30.898542][ C3] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 30.898544][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.898546][ C3] __kmalloc_noprof+0x443/0x760 [ 30.898548][ C3] ? __rwlock_init+0x150/0x150 [ 30.898549][ C3] ? alloc_buf.isra.0+0x4b/0x260 [ 30.898552][ C3] ? do_raw_spin_unlock+0x59/0x250 [ 30.898554][ C3] alloc_buf.isra.0+0x4b/0x260 [ 30.898556][ C3] put_chars+0x1e1/0x2f0 [ 30.898559][ C3] ? __send_to_port+0x420/0x420 [ 30.898562][ C3] hvc_console_print+0x292/0x780 [ 30.898563][ C3] ? mark_usage+0x42/0x170 [ 30.898565][ C3] ? __lock_acquire+0x388/0xc20 [ 30.898568][ C3] ? hvc_write+0x3a0/0x3a0 [ 30.898569][ C3] ? lock_acquire.part.0+0xd4/0x280 [ 30.898571][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.898572][ C3] ? lock_acquire+0x13c/0x160 [ 30.898574][ C3] console_emit_next_record+0x22f/0x4c0 [ 30.898576][ C3] ? devkmsg_read+0x4b0/0x4b0 [ 30.898577][ C3] ? console_flush_one_record+0x106/0x710 [ 30.898579][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.898580][ C3] ? lock_acquire+0x13c/0x160 [ 30.898582][ C3] console_flush_one_record+0x46f/0x710 [ 30.898584][ C3] ? console_emit_next_record+0x4c0/0x4c0 [ 30.898585][ C3] ? __lock_acquire+0x518/0xc20 [ 30.898588][ C3] console_unlock+0xee/0x1f0 [ 30.898589][ C3] ? console_flush_one_record+0x710/0x710 [ 30.898590][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.898592][ C3] ? lock_acquire+0x60/0x160 [ 30.898594][ C3] ? __down_trylock_console_sem+0x5e/0xa0 [ 30.898596][ C3] ? vprintk_emit+0x320/0x3e0 [ 30.898597][ C3] vprintk_emit+0x37c/0x3e0 [ 30.898599][ C3] ? wake_up_klogd_work_func+0x90/0x90 [ 30.898600][ C3] ? __lock_release.isra.0+0x69/0x1a0 [ 30.898603][ C3] _printk+0xc7/0x100 [ 30.898605][ C3] ? snapshot_read.cold+0x21/0x21 [ 30.898606][ C3] ? ___ratelimit+0x4e7/0xa00 [ 30.898608][ C3] ? idr_get_free+0x830/0x830 [ 30.898610][ C3] tcp_syn_flood_action.cold+0xb4/0xe5 [ 30.898612][ C3] tcp_conn_request+0x13ff/0x2c00 [ 30.898614][ C3] ? clockevents_program_event+0x307/0x7e0 [ 30.898616][ C3] ? reuseport_select_sock+0x19e/0x3c0 [ 30.898618][ C3] ? reuseport_select_sock+0xe1/0x3c0 [ 30.898620][ C3] ? __lock_acquire+0x518/0xc20 [ 30.898622][ C3] ? tcp_get_syncookie_mss+0x300/0x300 [ 30.898624][ C3] ? lock_acquire.part.0+0xd4/0x280 [ 30.898626][ C3] ? __lock_acquire+0x518/0xc20 [ 30.898627][ C3] ? save_trace+0x1f7/0x280 [ 30.898630][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.898631][ C3] ? lock_acquire+0x13c/0x160 [ 30.898634][ C3] ? tcp_rcv_listen_state_process+0x1ab/0x380 [ 30.898635][ C3] tcp_rcv_listen_state_process+0x1ab/0x380 [ 30.898637][ C3] tcp_v4_rcv_listen.constprop.0.isra.0+0x13f/0x4f0 [ 30.898639][ C3] ? tcp_v4_fill_cb+0x33/0x430 [ 30.898640][ C3] tcp_v4_rcv+0x2881/0x2ef0 [ 30.898642][ C3] ? mark_usage+0x61/0x170 [ 30.898644][ C3] ? tcp_add_backlog+0x1e30/0x1e30 [ 30.898646][ C3] ? lock_acquire.part.0+0xd4/0x280 [ 30.898648][ C3] ? ip_local_deliver_finish+0x2ba/0x610 [ 30.898650][ C3] ip_protocol_deliver_rcu+0x82/0x350 [ 30.898652][ C3] ? process_backlog+0x3f1/0x14c0 [ 30.898653][ C3] ip_local_deliver_finish+0x36f/0x610 [ 30.898655][ C3] ip_local_deliver+0x184/0x4c0 [ 30.898657][ C3] ? ip_local_deliver_finish+0x610/0x610 [ 30.898658][ C3] ? ip_protocol_deliver_rcu+0x350/0x350 [ 30.898660][ C3] ? __lock_release.isra.0+0x69/0x1a0 [ 30.898662][ C3] ? process_backlog+0x3f1/0x14c0 [ 30.898664][ C3] ip_rcv+0xdc/0x3d0 [ 30.898665][ C3] ? ip_local_deliver+0x4c0/0x4c0 [ 30.898666][ C3] ? rcu_read_lock_any_held+0x3c/0x90 [ 30.898668][ C3] ? ip_rcv_finish_core+0x14c0/0x14c0 [ 30.898670][ C3] ? __lock_acquire+0x518/0xc20 [ 30.898671][ C3] ? perf_trace_rcu_grace_period_init+0x227/0x580 [ 30.898673][ C3] ? process_backlog+0x3f1/0x14c0 [ 30.898675][ C3] __netif_receive_skb_one_core+0xfc/0x180 [ 30.898677][ C3] ? lock_acquire.part.0+0xd4/0x280 [ 30.898678][ C3] ? process_backlog+0x3f1/0x14c0 [ 30.898680][ C3] ? __netif_receive_skb_list_core+0x9e0/0x9e0 [ 30.898682][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.898684][ C3] process_backlog+0x431/0x14c0 [ 30.898686][ C3] __napi_poll+0xa7/0x3b0 [ 30.898688][ C3] net_rx_action+0x513/0xf50 [ 30.898691][ C3] ? __lock_acquire+0x518/0xc20 [ 30.898692][ C3] ? __napi_poll+0x3b0/0x3b0 [ 30.898696][ C3] ? ktime_get_update_offsets_now+0x2a8/0x490 [ 30.898698][ C3] ? mark_held_locks+0x40/0x70 [ 30.898700][ C3] handle_softirqs+0x1d3/0x900 [ 30.898702][ C3] ? _local_bh_enable+0xc0/0xc0 [ 30.898704][ C3] ? do_raw_spin_unlock+0x59/0x250 [ 30.898706][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.898707][ C3] ? __dev_queue_xmit+0x964/0x1b80 [ 30.898709][ C3] do_softirq+0xac/0xe0 [ 30.898711][ C3] [ 30.898711][ C3] [ 30.898712][ C3] __local_bh_enable_ip+0x118/0x150 [ 30.898714][ C3] __dev_queue_xmit+0x979/0x1b80 [ 30.898717][ C3] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 30.898718][ C3] ? lock_acquire.part.0+0xd4/0x280 [ 30.898720][ C3] ? find_held_lock+0x2b/0x80 [ 30.898722][ C3] ? __lock_release.isra.0+0x69/0x1a0 [ 30.898724][ C3] ? rcu_is_watching+0x16/0xd0 [ 30.898725][ C3] ? mark_held_locks+0x40/0x70 [ 30.898727][ C3] ? __asan_memcpy+0x3c/0x60 [ 30.898728][ C3] ? neigh_hh_output+0x152/0x4c0 [ 30.898730][ C3] ip_finish_output2+0xd9b/0x1bc0 [ 30.898732][ C3] ? ip_dst_mtu_maybe_forward+0x261/0x670 [ 30.898734][ C3] ? ip_fragment.constprop.0+0x2c0/0x2c0 [ 30.898736][ C3] ip_output+0x1ca/0x660 [ 30.898738][ C3] ? ip_finish_output+0x460/0x460 [ 30.898739][ C3] ? find_held_lock+0x2b/0x80 [ 30.898741][ C3] ? __ip_finish_output+0x720/0x720 [ 30.898743][ C3] ? ip4_dst_hoplimit+0x15b/0x320 [ 30.898746][ C3] __ip_queue_xmit+0x774/0x1650 [ 30.898750][ C3] __tcp_transmit_skb+0x1ad9/0x3a70 [ 30.898755][ C3] ? tcp_call_bpf+0x201/0x2e0 [ 30.898757][ C3] ? tcp_clone_payload+0x10b0/0x10b0 [ 30.898759][ C3] ? __tcp_select_window+0xf20/0xf20 [ 30.898761][ C3] ? lockdep_hardirqs_on+0x91/0x130 [ 30.898763][ C3] ? ktime_get+0x18e/0x2d0 [ 30.898764][ C3] ? kvm_clock_get_cycles+0x19/0x30 [ 30.898766][ C3] ? ktime_get+0x1dd/0x2d0 [ 30.898768][ C3] tcp_connect+0xec4/0x1880 [ 30.898771][ C3] tcp_v4_connect+0x12bd/0x1960 [ 30.898773][ C3] ? established_get_first+0x6b0/0x6b0 [ 30.898775][ C3] ? do_raw_spin_lock+0x131/0x280 [ 30.898776][ C3] ? find_held_lock+0x2b/0x80 [ 30.898778][ C3] __inet_stream_connect+0x2ed/0xd00 [ 30.898780][ C3] ? lockdep_hardirqs_on+0x91/0x130 [ 30.898783][ C3] inet_stream_connect+0x59/0xb0 [ 30.898785][ C3] __sys_connect+0x1c1/0x2c0 [ 30.898786][ C3] ? do_fcntl+0x36f/0xc50 [ 30.898788][ C3] ? __sys_connect_file+0x250/0x250 [ 30.898791][ C3] ? fdget_raw+0x4f/0x190 [ 30.898793][ C3] __x64_sys_connect+0x72/0xd0 [ 30.898795][ C3] ? lockdep_hardirqs_on+0x91/0x130 [ 30.898796][ C3] ? do_syscall_64+0xa6/0x570 [ 30.898798][ C3] do_syscall_64+0x10e/0x570 [ 30.898799][ C3] ? exc_page_fault+0xee/0x100 [ 30.898801][ C3] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 30.898802][ C3] RIP: 0033:0x7fbb29b4454e [ 30.898803][ 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 [ 30.898805][ C3] RSP: 002b:00007fff2c8d8df0 EFLAGS: 00000202 ORIG_RAX: 000000000000002a [ 30.898806][ C3] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fbb29b4454e [ 30.898807][ C3] RDX: 0000000000000010 RSI: 00007fff2c8d8e80 RDI: 0000000000000005 [ 30.898808][ C3] RBP: 00007fff2c8d8e00 R08: 0000000000000000 R09: 0000000000000000 [ 30.898808][ C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff2c8d8ff8 [ 30.898809][ C3] R13: 0000000000000005 R14: 00007fbb29d15000 R15: 0000000000402e00 [ 30.898811][ C3] [ 31.013609][ C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 31.196176][ C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 31.322895][ C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 31.357638][ C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 31.500130][ C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 31.547660][ C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 31.671450][ C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 31.778998][ C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 31.997986][ C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies. [ 31.998006][ C3] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 31.998008][ C3] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 346, name: connect_close [ 31.998010][ C3] preempt_count: 302, expected: 0 [ 31.998011][ C3] RCU nest depth: 6, expected: 0 [ 31.998012][ C3] INFO: lockdep is turned off. [ 31.998013][ C3] irq event stamp: 266339 [ 31.998014][ C3] hardirqs last enabled at (266338): [] __down_trylock_console_sem+0x86/0xa0 [ 31.998022][ C3] hardirqs last disabled at (266339): [] console_emit_next_record+0x3d4/0x4c0 [ 31.998025][ C3] softirqs last enabled at (266322): [] __dev_queue_xmit+0x964/0x1b80 [ 31.998029][ C3] softirqs last disabled at (266323): [] do_softirq+0xac/0xe0 [ 31.998033][ C3] Preemption disabled at: [ 31.998033][ C3] [] __dev_queue_xmit+0x204/0x1b80 [ 31.998040][ C3] CPU: 3 UID: 0 PID: 346 Comm: connect_close Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 31.998043][ C3] Tainted: [W]=WARN [ 31.998044][ C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 31.998046][ C3] Call Trace: [ 31.998048][ C3] [ 31.998049][ C3] dump_stack_lvl+0x6f/0xa0 [ 31.998054][ C3] ? __dev_queue_xmit+0x204/0x1b80 [ 31.998055][ C3] __might_resched.cold+0x1fe/0x2c1 [ 31.998059][ C3] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 31.998062][ C3] ? prb_next_reserve_seq+0x2d0/0x2d0 [ 31.998064][ C3] ? rcu_is_watching+0x16/0xd0 [ 31.998067][ C3] __kmalloc_noprof+0x443/0x760 [ 31.998070][ C3] ? __rwlock_init+0x150/0x150 [ 31.998073][ C3] ? alloc_buf.isra.0+0x4b/0x260 [ 31.998077][ C3] ? do_raw_spin_unlock+0x59/0x250 [ 31.998079][ C3] alloc_buf.isra.0+0x4b/0x260 [ 31.998081][ C3] put_chars+0x1e1/0x2f0 [ 31.998083][ C3] ? prb_final_commit+0x50/0x50 [ 31.998085][ C3] ? __send_to_port+0x420/0x420 [ 31.998087][ C3] ? printk_get_next_message+0x240/0x650 [ 31.998089][ C3] hvc_console_print+0x292/0x780 [ 31.998093][ C3] ? hvc_write+0x3a0/0x3a0 [ 31.998095][ C3] ? do_raw_spin_lock+0x131/0x280 [ 31.998096][ C3] ? vsnprintf+0x668/0x1700 [ 31.998106][ C3] ? __rwlock_init+0x150/0x150 [ 31.998108][ C3] ? rcu_is_watching+0x16/0xd0 [ 31.998109][ C3] ? lock_acquire+0x13c/0x160 [ 31.998112][ C3] console_emit_next_record+0x22f/0x4c0 [ 31.998114][ C3] ? devkmsg_read+0x4b0/0x4b0 [ 31.998115][ C3] ? rcu_is_watching+0x16/0xd0 [ 31.998116][ C3] ? rcu_is_watching+0x16/0xd0 [ 31.998117][ C3] ? rcu_is_watching+0x16/0xd0 [ 31.998119][ C3] ? lock_acquire+0x13c/0x160 [ 31.998121][ C3] ? console_flush_one_record+0x111/0x710 [ 31.998122][ C3] console_flush_one_record+0x46f/0x710 [ 31.998124][ C3] ? console_emit_next_record+0x4c0/0x4c0 [ 31.998126][ C3] console_unlock+0xee/0x1f0 [ 31.998127][ C3] ? lock_acquire+0x13c/0x160 [ 31.998129][ C3] ? console_flush_one_record+0x710/0x710 [ 31.998130][ C3] ? rcu_is_watching+0x16/0xd0 [ 31.998131][ C3] ? lock_release+0x184/0x1f0 [ 31.998133][ C3] ? lock_acquire+0x60/0x160 [ 31.998135][ C3] ? __rcu_read_lock+0x30/0x70 [ 31.998136][ C3] ? __down_trylock_console_sem+0x5e/0xa0 [ 31.998138][ C3] ? vprintk_emit+0x320/0x3e0 [ 31.998140][ C3] vprintk_emit+0x37c/0x3e0 [ 31.998141][ C3] ? wake_up_klogd_work_func+0x90/0x90 [ 31.998143][ C3] ? do_raw_spin_trylock+0xb6/0x180 [ 31.998145][ C3] ? rcu_is_watching+0x16/0xd0 [ 31.998146][ C3] ? lock_acquire+0x13c/0x160 [ 31.998148][ C3] _printk+0xc7/0x100 [ 31.998151][ C3] ? snapshot_read.cold+0x21/0x21 [ 31.998153][ C3] ? ___ratelimit+0x4e7/0xa00 [ 31.998155][ C3] ? idr_get_free+0x830/0x830 [ 31.998157][ C3] tcp_syn_flood_action.cold+0xb4/0xe5 [ 31.998161][ C3] tcp_conn_request+0x13ff/0x2c00 [ 31.998165][ C3] ? lock_acquire+0x13c/0x160 [ 31.998167][ C3] ? rcu_is_watching+0x16/0xd0 [ 31.998168][ C3] ? lock_release+0x184/0x1f0 [ 31.998170][ C3] ? reuseport_select_sock+0xe1/0x3c0 [ 31.998173][ C3] ? tcp_get_syncookie_mss+0x300/0x300 [ 31.998176][ C3] ? rcu_is_watching+0x16/0xd0 [ 31.998178][ C3] ? rcu_is_watching+0x16/0xd0 [ 31.998179][ C3] ? lock_acquire+0x13c/0x160 [ 31.998181][ C3] ? tcp_rcv_listen_state_process+0x1ab/0x380 [ 31.998183][ C3] tcp_rcv_listen_state_process+0x1ab/0x380 [ 31.998185][ C3] tcp_v4_rcv_listen.constprop.0.isra.0+0x13f/0x4f0 [ 31.998187][ C3] ? tcp_v4_fill_cb+0x33/0x430 [ 31.998189][ C3] tcp_v4_rcv+0x2881/0x2ef0 [ 31.998192][ C3] ? tcp_add_backlog+0x1e30/0x1e30 [ 31.998194][ C3] ? rcu_is_watching+0x16/0xd0 [ 31.998195][ C3] ? process_backlog+0x3f1/0x14c0 [ 31.998197][ C3] ip_protocol_deliver_rcu+0x82/0x350 [ 31.998200][ C3] ? process_backlog+0x3f1/0x14c0 [ 31.998202][ C3] ip_local_deliver_finish+0x36f/0x610 [ 31.998203][ C3] ? lock_release+0x184/0x1f0 [ 31.998205][ C3] ip_local_deliver+0x184/0x4c0 [ 31.998207][ C3] ? ip_local_deliver_finish+0x610/0x610 [ 31.998209][ C3] ? ip_protocol_deliver_rcu+0x350/0x350 [ 31.998210][ C3] ? rcu_is_watching+0x16/0xd0 [ 31.998212][ C3] ? process_backlog+0x3f1/0x14c0 [ 31.998213][ C3] ip_rcv+0xdc/0x3d0 [ 31.998215][ C3] ? ip_local_deliver+0x4c0/0x4c0 [ 31.998216][ C3] ? __kmalloc_cache_noprof+0x29a/0x620 [ 31.998218][ C3] ? ip_rcv_finish_core+0x14c0/0x14c0 [ 31.998219][ C3] ? __rwlock_init+0x150/0x150 [ 31.998221][ C3] ? lock_acquire+0x13c/0x160 [ 31.998223][ C3] ? process_backlog+0x3f1/0x14c0 [ 31.998225][ C3] __netif_receive_skb_one_core+0xfc/0x180 [ 31.998227][ C3] ? __netif_receive_skb_list_core+0x9e0/0x9e0 [ 31.998229][ C3] ? rcu_is_watching+0x16/0xd0 [ 31.998230][ C3] ? rcu_is_watching+0x16/0xd0 [ 31.998232][ C3] process_backlog+0x431/0x14c0 [ 31.998234][ C3] __napi_poll+0xa7/0x3b0 [ 31.998236][ C3] net_rx_action+0x513/0xf50 [ 31.998239][ C3] ? __napi_poll+0x3b0/0x3b0 [ 31.998241][ C3] ? do_raw_spin_lock+0xe0/0x280 [ 31.998243][ C3] ? __rwlock_init+0x150/0x150 [ 31.998246][ C3] ? __run_timers+0xaa0/0xaa0 [ 31.998248][ C3] ? rcu_is_watching+0x16/0xd0 [ 31.998249][ C3] ? rcu_is_watching+0x16/0xd0 [ 31.998251][ C3] handle_softirqs+0x1d3/0x900 [ 31.998253][ C3] ? _local_bh_enable+0xc0/0xc0 [ 31.998255][ C3] ? _local_bh_enable+0xc0/0xc0 [ 31.998256][ C3] ? lock_release+0x184/0x1f0 [ 31.998258][ C3] ? __dev_queue_xmit+0x964/0x1b80 [ 31.998260][ C3] do_softirq+0xac/0xe0 [ 31.998262][ C3] [ 31.998262][ C3] [ 31.998263][ C3] __local_bh_enable_ip+0x118/0x150 [ 31.998265][ C3] __dev_queue_xmit+0x979/0x1b80 [ 31.998268][ C3] ? netdev_core_pick_tx+0x2c0/0x2c0 [ 31.998270][ C3] ? rcu_is_watching+0x16/0xd0 [ 31.998271][ C3] ? lock_acquire+0x13c/0x160 [ 31.998273][ C3] ? rcu_is_watching+0x16/0xd0 [ 31.998274][ C3] ? __asan_memcpy+0x3c/0x60 [ 31.998277][ C3] ? neigh_hh_output+0x152/0x4c0 [ 31.998279][ C3] ip_finish_output2+0xd9b/0x1bc0 [ 31.998281][ C3] ? ip_dst_mtu_maybe_forward+0x7c/0x670 [ 31.998282][ C3] ? ip_dst_mtu_maybe_forward+0x261/0x670 [ 31.998284][ C3] ? ip_fragment.constprop.0+0x2c0/0x2c0 [ 31.998285][ C3] ? rcu_is_watching+0x16/0xd0 [ 31.998287][ C3] ip_output+0x1ca/0x660 [ 31.998289][ C3] ? ip_finish_output+0x460/0x460 [ 31.998291][ C3] ? lock_acquire+0x13c/0x160 [ 31.998293][ C3] ? __ip_finish_output+0x720/0x720 [ 31.998294][ C3] ? lock_acquire+0x13c/0x160 [ 31.998296][ C3] ? rcu_is_watching+0x16/0xd0 [ 31.998297][ C3] ? lock_release+0x184/0x1f0 [ 31.998299][ C3] __ip_queue_xmit+0x774/0x1650 [ 31.998301][ C3] __tcp_transmit_skb+0x1ad9/0x3a70 [ 31.998304][ C3] ? tcp_call_bpf+0x201/0x2e0 [ 31.998306][ C3] ? tcp_clone_payload+0x10b0/0x10b0 [ 31.998308][ C3] ? __tcp_select_window+0xf20/0xf20 [ 31.998310][ C3] ? trace_hardirqs_on+0x36/0x40 [ 31.998313][ C3] ? kvm_clock_get_cycles+0x19/0x30 [ 31.998315][ C3] ? ktime_get+0x1dd/0x2d0 [ 31.998318][ C3] tcp_connect+0xec4/0x1880 [ 31.998321][ C3] tcp_v4_connect+0x12bd/0x1960 [ 31.998323][ C3] ? established_get_first+0x6b0/0x6b0 [ 31.998325][ C3] ? lockdep_init_map_type+0x5d/0x250 [ 31.998326][ C3] ? do_raw_spin_lock+0x131/0x280 [ 31.998328][ C3] ? __rwlock_init+0x150/0x150 [ 31.998331][ C3] __inet_stream_connect+0x2ed/0xd00 [ 31.998333][ C3] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 31.998335][ C3] ? trace_irq_disable.constprop.0+0x9b/0x160 [ 31.998337][ C3] inet_stream_connect+0x59/0xb0 [ 31.998339][ C3] __sys_connect+0x1c1/0x2c0 [ 31.998342][ C3] ? do_fcntl+0x36f/0xc50 [ 31.998345][ C3] ? rcu_is_watching+0x16/0xd0 [ 31.998346][ C3] ? __sys_connect_file+0x250/0x250 [ 31.998349][ C3] ? fdget_raw+0x4f/0x190 [ 31.998352][ C3] __x64_sys_connect+0x72/0xd0 [ 31.998353][ C3] ? trace_hardirqs_on+0x36/0x40 [ 31.998355][ C3] do_syscall_64+0x10e/0x570 [ 31.998357][ C3] ? irq_exit_rcu+0x1a/0x30 [ 31.998359][ C3] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 31.998361][ C3] RIP: 0033:0x7fbb29b4454e [ 31.998364][ 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 [ 31.998366][ C3] RSP: 002b:00007fff2c8d8df0 EFLAGS: 00000202 ORIG_RAX: 000000000000002a [ 31.998370][ C3] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fbb29b4454e [ 31.998371][ C3] RDX: 0000000000000010 RSI: 00007fff2c8d8e80 RDI: 0000000000000005 [ 31.998372][ C3] RBP: 00007fff2c8d8e00 R08: 0000000000000000 R09: 0000000000000000 [ 31.998373][ C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff2c8d8ff8 [ 31.998374][ C3] R13: 0000000000000005 R14: 00007fbb29d15000 R15: 0000000000402e00 [ 31.998376][ C3] [ 84.440756][ T1034] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this. [ 84.440772][ T1034] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 84.440774][ T1034] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 1034, name: modprobe [ 84.440776][ T1034] preempt_count: 1, expected: 0 [ 84.440777][ T1034] RCU nest depth: 0, expected: 0 [ 84.440778][ T1034] INFO: lockdep is turned off. [ 84.440779][ T1034] irq event stamp: 0 [ 84.440779][ T1034] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [ 84.440784][ T1034] hardirqs last disabled at (0): [] copy_process+0x1d01/0x62c0 [ 84.440791][ T1034] softirqs last enabled at (0): [] copy_process+0x1d55/0x62c0 [ 84.440793][ T1034] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 84.440795][ T1034] Preemption disabled at: [ 84.440796][ T1034] [] vprintk_emit+0x31b/0x3e0 [ 84.440803][ T1034] CPU: 2 UID: 0 PID: 1034 Comm: modprobe Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 84.440807][ T1034] Tainted: [W]=WARN [ 84.440808][ T1034] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 84.440810][ T1034] Call Trace: [ 84.440811][ T1034] [ 84.440812][ T1034] dump_stack_lvl+0x6f/0xa0 [ 84.440817][ T1034] ? vprintk_emit+0x31b/0x3e0 [ 84.440819][ T1034] __might_resched.cold+0x1fe/0x2c1 [ 84.440823][ T1034] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 84.440825][ T1034] ? rcu_is_watching+0x16/0xd0 [ 84.440829][ T1034] __kmalloc_noprof+0x443/0x760 [ 84.440832][ T1034] ? __rwlock_init+0x150/0x150 [ 84.440835][ T1034] ? alloc_buf.isra.0+0x4b/0x260 [ 84.440840][ T1034] ? do_raw_spin_unlock+0x59/0x250 [ 84.440842][ T1034] alloc_buf.isra.0+0x4b/0x260 [ 84.440844][ T1034] put_chars+0x1e1/0x2f0 [ 84.440846][ T1034] ? __send_to_port+0x420/0x420 [ 84.440848][ T1034] ? console_prepend_replay+0x20/0x20 [ 84.440850][ T1034] hvc_console_print+0x292/0x780 [ 84.440854][ T1034] ? hvc_write+0x3a0/0x3a0 [ 84.440856][ T1034] ? rcu_is_watching+0x16/0xd0 [ 84.440857][ T1034] ? rcu_is_watching+0x16/0xd0 [ 84.440858][ T1034] ? lock_acquire+0x13c/0x160 [ 84.440861][ T1034] console_emit_next_record+0x22f/0x4c0 [ 84.440863][ T1034] ? devkmsg_read+0x4b0/0x4b0 [ 84.440865][ T1034] ? rcu_is_watching+0x16/0xd0 [ 84.440866][ T1034] ? rcu_is_watching+0x16/0xd0 [ 84.440867][ T1034] ? rcu_is_watching+0x16/0xd0 [ 84.440868][ T1034] ? lock_acquire+0x13c/0x160 [ 84.440870][ T1034] ? console_flush_one_record+0x111/0x710 [ 84.440871][ T1034] console_flush_one_record+0x46f/0x710 [ 84.440873][ T1034] ? console_emit_next_record+0x4c0/0x4c0 [ 84.440875][ T1034] console_unlock+0xee/0x1f0 [ 84.440877][ T1034] ? lock_acquire+0x13c/0x160 [ 84.440879][ T1034] ? console_flush_one_record+0x710/0x710 [ 84.440880][ T1034] ? rcu_is_watching+0x16/0xd0 [ 84.440881][ T1034] ? lock_release+0x184/0x1f0 [ 84.440882][ T1034] ? lock_acquire+0x60/0x160 [ 84.440884][ T1034] ? __rcu_read_lock+0x30/0x70 [ 84.440886][ T1034] ? __down_trylock_console_sem+0x5e/0xa0 [ 84.440888][ T1034] ? vprintk_emit+0x320/0x3e0 [ 84.440890][ T1034] vprintk_emit+0x37c/0x3e0 [ 84.440892][ T1034] ? wake_up_klogd_work_func+0x90/0x90 [ 84.440894][ T1034] ? ww_mutex_lock+0x160/0x160 [ 84.440898][ T1034] ? llc_exit+0x3e0/0x3e0 [llc] [ 84.440900][ T1034] _printk+0xc7/0x100 [ 84.440903][ T1034] ? snapshot_read.cold+0x21/0x21 [ 84.440905][ T1034] ? __mutex_unlock_slowpath+0x5e5/0x740 [ 84.440907][ T1034] ? _mutex_trylock_nest_lock+0x390/0x390 [ 84.440910][ T1034] ? __mutex_unlock_slowpath+0x14d/0x740 [ 84.440912][ T1034] br_init+0x98/0xc0 [bridge] [ 84.440923][ T1034] do_one_initcall+0x124/0x4f0 [ 84.440926][ T1034] ? trace_event_raw_event_initcall_level+0x280/0x280 [ 84.440929][ T1034] ? do_init_module+0xae/0x8a0 [ 84.440931][ T1034] ? kasan_unpoison+0x44/0x70 [ 84.440934][ T1034] do_init_module+0x2ad/0x8a0 [ 84.440936][ T1034] ? free_module+0x470/0x470 [ 84.440938][ T1034] ? kfree+0x123/0x590 [ 84.440940][ T1034] load_module+0x154b/0x1d60 [ 84.440943][ T1034] ? layout_and_allocate.isra.0+0x680/0x680 [ 84.440945][ T1034] ? backing_file_read_iter+0x541/0x790 [ 84.440949][ T1034] init_module_from_file+0x11f/0x1a0 [ 84.440951][ T1034] ? __ia32_sys_init_module+0xc0/0xc0 [ 84.440953][ T1034] ? ovl_mmap+0x270/0x270 [ 84.440957][ T1034] ? __rwlock_init+0x150/0x150 [ 84.440959][ T1034] ? rcu_is_watching+0x16/0xd0 [ 84.440961][ T1034] ? lock_release+0x184/0x1f0 [ 84.440962][ T1034] ? do_raw_spin_unlock+0x59/0x250 [ 84.440964][ T1034] idempotent_init_module+0x37b/0x7c0 [ 84.440966][ T1034] ? init_module_from_file+0x1a0/0x1a0 [ 84.440969][ T1034] ? rcu_is_watching+0x16/0xd0 [ 84.440970][ T1034] ? cap_capable+0x1d7/0x3d0 [ 84.440973][ T1034] __x64_sys_finit_module+0xdf/0x190 [ 84.440974][ T1034] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 84.440978][ T1034] do_syscall_64+0x10e/0x570 [ 84.440980][ T1034] ? exc_page_fault+0xee/0x100 [ 84.440982][ T1034] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 84.440985][ T1034] RIP: 0033:0x7f3314fd337d [ 84.440987][ T1034] 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 [ 84.440989][ T1034] RSP: 002b:00007ffc24581ce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 84.440992][ T1034] RAX: ffffffffffffffda RBX: 000055dbd7f76810 RCX: 00007f3314fd337d [ 84.440994][ T1034] RDX: 0000000000000000 RSI: 000055dbb9d96ffd RDI: 0000000000000002 [ 84.440995][ T1034] RBP: 00007ffc24581d80 R08: 0000000000000000 R09: 0000000000000000 [ 84.440996][ T1034] R10: 0000000000000000 R11: 0000000000000246 R12: 000055dbb9d96ffd [ 84.440997][ T1034] R13: 000055dbd7f769c0 R14: 0000000000040000 R15: 0000000000000000 [ 84.440999][ T1034] [ 84.495725][ T1036] br0: port 1(veth0) entered blocking state [ 84.496009][ T1036] br0: port 1(veth0) entered disabled state [ 84.496285][ T1036] veth0: entered allmulticast mode [ 84.497285][ T1036] veth0: entered promiscuous mode [ 84.518540][ T1039] br0: port 2(veth1) entered blocking state [ 84.518789][ T1039] br0: port 2(veth1) entered disabled state [ 84.519003][ T1039] veth1: entered allmulticast mode [ 84.519920][ T1039] veth1: entered promiscuous mode [ 84.542071][ T1040] br0: port 2(veth1) entered blocking state [ 84.542317][ T1040] br0: port 2(veth1) entered forwarding state [ 84.542647][ T1040] br0: port 1(veth0) entered blocking state [ 84.542846][ T1040] br0: port 1(veth0) entered forwarding state [ 90.486704][ T1057] nf_queue (1057) used greatest stack depth: 23912 bytes left [ 90.486723][ T1057] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 90.486725][ T1057] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 1057, name: nf_queue [ 90.486727][ T1057] preempt_count: 2, expected: 0 [ 90.486728][ T1057] RCU nest depth: 0, expected: 0 [ 90.486729][ T1057] INFO: lockdep is turned off. [ 90.486730][ T1057] irq event stamp: 0 [ 90.486731][ T1057] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [ 90.486735][ T1057] hardirqs last disabled at (0): [] copy_process+0x1d01/0x62c0 [ 90.486742][ T1057] softirqs last enabled at (0): [] copy_process+0x1d55/0x62c0 [ 90.486744][ T1057] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 90.486746][ T1057] Preemption disabled at: [ 90.486747][ T1057] [<0000000000000000>] 0x0 [ 90.486754][ T1057] CPU: 3 UID: 0 PID: 1057 Comm: nf_queue Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 90.486758][ T1057] Tainted: [W]=WARN [ 90.486759][ T1057] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 90.486761][ T1057] Call Trace: [ 90.486762][ T1057] [ 90.486763][ T1057] dump_stack_lvl+0x6f/0xa0 [ 90.486768][ T1057] __might_resched.cold+0x1fe/0x2c1 [ 90.486773][ T1057] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 90.486775][ T1057] ? rcu_is_watching+0x16/0xd0 [ 90.486779][ T1057] __kmalloc_noprof+0x443/0x760 [ 90.486782][ T1057] ? __rwlock_init+0x150/0x150 [ 90.486786][ T1057] ? alloc_buf.isra.0+0x4b/0x260 [ 90.486790][ T1057] ? do_raw_spin_unlock+0x59/0x250 [ 90.486792][ T1057] alloc_buf.isra.0+0x4b/0x260 [ 90.486794][ T1057] put_chars+0x1e1/0x2f0 [ 90.486796][ T1057] ? __send_to_port+0x420/0x420 [ 90.486798][ T1057] ? printk_get_next_message+0x240/0x650 [ 90.486800][ T1057] ? console_prepend_replay+0x20/0x20 [ 90.486802][ T1057] hvc_console_print+0x292/0x780 [ 90.486806][ T1057] ? hvc_write+0x3a0/0x3a0 [ 90.486807][ T1057] ? __rwlock_init+0x150/0x150 [ 90.486809][ T1057] ? lock_acquire+0x13c/0x160 [ 90.486812][ T1057] console_emit_next_record+0x22f/0x4c0 [ 90.486814][ T1057] ? devkmsg_read+0x4b0/0x4b0 [ 90.486816][ T1057] ? rcu_is_watching+0x16/0xd0 [ 90.486817][ T1057] ? rcu_is_watching+0x16/0xd0 [ 90.486818][ T1057] ? rcu_is_watching+0x16/0xd0 [ 90.486819][ T1057] ? lock_acquire+0x13c/0x160 [ 90.486821][ T1057] ? console_flush_one_record+0x111/0x710 [ 90.486823][ T1057] console_flush_one_record+0x46f/0x710 [ 90.486824][ T1057] ? console_emit_next_record+0x4c0/0x4c0 [ 90.486827][ T1057] console_unlock+0xee/0x1f0 [ 90.486828][ T1057] ? lock_acquire+0x13c/0x160 [ 90.486830][ T1057] ? console_flush_one_record+0x710/0x710 [ 90.486831][ T1057] ? rcu_is_watching+0x16/0xd0 [ 90.486832][ T1057] ? lock_release+0x184/0x1f0 [ 90.486834][ T1057] ? lock_acquire+0x60/0x160 [ 90.486835][ T1057] ? __rcu_read_lock+0x30/0x70 [ 90.486837][ T1057] ? __down_trylock_console_sem+0x5e/0xa0 [ 90.486839][ T1057] ? vprintk_emit+0x320/0x3e0 [ 90.486841][ T1057] vprintk_emit+0x37c/0x3e0 [ 90.486843][ T1057] ? wake_up_klogd_work_func+0x90/0x90 [ 90.486844][ T1057] ? do_raw_read_unlock+0x70/0x70 [ 90.486846][ T1057] ? forget_original_parent+0x5c/0xdb0 [ 90.486848][ T1057] _printk+0xc7/0x100 [ 90.486851][ T1057] ? snapshot_read.cold+0x21/0x21 [ 90.486853][ T1057] ? do_raw_spin_lock+0x131/0x280 [ 90.486855][ T1057] ? do_raw_spin_lock+0x131/0x280 [ 90.486857][ T1057] ? __rwlock_init+0x150/0x150 [ 90.486859][ T1057] ? do_raw_spin_lock+0x131/0x280 [ 90.486861][ T1057] do_exit.cold+0x82/0x9c [ 90.486864][ T1057] ? exit_notify+0x890/0x890 [ 90.486866][ T1057] ? posixtimer_sig_unignore.isra.0+0x5f0/0x5f0 [ 90.486868][ T1057] ? rcu_is_watching+0x16/0xd0 [ 90.486870][ T1057] do_group_exit+0xb8/0x370 [ 90.486872][ T1057] __x64_sys_exit_group+0x3c/0x50 [ 90.486874][ T1057] x64_sys_call+0x1567/0x1570 [ 90.486876][ T1057] do_syscall_64+0x10e/0x570 [ 90.486880][ T1057] ? exc_page_fault+0xee/0x100 [ 90.486882][ T1057] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 90.486885][ T1057] RIP: 0033:0x7faf076de1b8 [ 90.486886][ T1057] Code: Unable to access opcode bytes at 0x7faf076de18e. [ 90.486888][ T1057] RSP: 002b:00007ffcffca6078 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 90.486891][ T1057] RAX: ffffffffffffffda RBX: 00007faf0780ef88 RCX: 00007faf076de1b8 [ 90.486893][ T1057] RDX: 00007faf0761ba48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 90.486894][ T1057] RBP: 00007ffcffca60d0 R08: 0000000000000000 R09: 0000000000000000 [ 90.486894][ T1057] R10: 00007ffcffca5f10 R11: 0000000000000246 R12: 0000000000000001 [ 90.486895][ T1057] R13: 0000000000000000 R14: 00007faf0780d680 R15: 00007faf0780efa0 [ 90.486898][ T1057] [ 90.505439][ T1058] nf_queue (1058) used greatest stack depth: 23776 bytes left [ 96.124144][ T1077] nf_queue (1077) used greatest stack depth: 22904 bytes left [ 96.124164][ T1077] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 96.124166][ T1077] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 1077, name: nf_queue [ 96.124168][ T1077] preempt_count: 2, expected: 0 [ 96.124169][ T1077] RCU nest depth: 0, expected: 0 [ 96.124169][ T1077] INFO: lockdep is turned off. [ 96.124171][ T1077] irq event stamp: 0 [ 96.124171][ T1077] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [ 96.124176][ T1077] hardirqs last disabled at (0): [] copy_process+0x1d01/0x62c0 [ 96.124183][ T1077] softirqs last enabled at (0): [] copy_process+0x1d55/0x62c0 [ 96.124185][ T1077] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 96.124187][ T1077] Preemption disabled at: [ 96.124187][ T1077] [<0000000000000000>] 0x0 [ 96.124193][ T1077] CPU: 1 UID: 0 PID: 1077 Comm: nf_queue Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 96.124196][ T1077] Tainted: [W]=WARN [ 96.124197][ T1077] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 96.124199][ T1077] Call Trace: [ 96.124200][ T1077] [ 96.124201][ T1077] dump_stack_lvl+0x6f/0xa0 [ 96.124206][ T1077] __might_resched.cold+0x1fe/0x2c1 [ 96.124210][ T1077] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 96.124213][ T1077] ? rcu_is_watching+0x16/0xd0 [ 96.124217][ T1077] __kmalloc_noprof+0x443/0x760 [ 96.124220][ T1077] ? __rwlock_init+0x150/0x150 [ 96.124223][ T1077] ? alloc_buf.isra.0+0x4b/0x260 [ 96.124228][ T1077] ? do_raw_spin_unlock+0x59/0x250 [ 96.124229][ T1077] alloc_buf.isra.0+0x4b/0x260 [ 96.124231][ T1077] put_chars+0x1e1/0x2f0 [ 96.124234][ T1077] ? __send_to_port+0x420/0x420 [ 96.124235][ T1077] ? printk_get_next_message+0x240/0x650 [ 96.124237][ T1077] ? console_prepend_replay+0x20/0x20 [ 96.124239][ T1077] hvc_console_print+0x292/0x780 [ 96.124244][ T1077] ? hvc_write+0x3a0/0x3a0 [ 96.124245][ T1077] ? __rwlock_init+0x150/0x150 [ 96.124247][ T1077] ? lock_acquire+0x13c/0x160 [ 96.124249][ T1077] console_emit_next_record+0x22f/0x4c0 [ 96.124252][ T1077] ? devkmsg_read+0x4b0/0x4b0 [ 96.124253][ T1077] ? rcu_is_watching+0x16/0xd0 [ 96.124254][ T1077] ? rcu_is_watching+0x16/0xd0 [ 96.124255][ T1077] ? rcu_is_watching+0x16/0xd0 [ 96.124257][ T1077] ? lock_acquire+0x13c/0x160 [ 96.124259][ T1077] ? console_flush_one_record+0x111/0x710 [ 96.124260][ T1077] console_flush_one_record+0x46f/0x710 [ 96.124262][ T1077] ? console_emit_next_record+0x4c0/0x4c0 [ 96.124264][ T1077] console_unlock+0xee/0x1f0 [ 96.124265][ T1077] ? lock_acquire+0x13c/0x160 [ 96.124267][ T1077] ? console_flush_one_record+0x710/0x710 [ 96.124268][ T1077] ? rcu_is_watching+0x16/0xd0 [ 96.124269][ T1077] ? lock_release+0x184/0x1f0 [ 96.124271][ T1077] ? lock_acquire+0x60/0x160 [ 96.124272][ T1077] ? __rcu_read_lock+0x30/0x70 [ 96.124274][ T1077] ? __down_trylock_console_sem+0x5e/0xa0 [ 96.124277][ T1077] ? vprintk_emit+0x320/0x3e0 [ 96.124279][ T1077] vprintk_emit+0x37c/0x3e0 [ 96.124281][ T1077] ? wake_up_klogd_work_func+0x90/0x90 [ 96.124282][ T1077] ? do_raw_read_unlock+0x70/0x70 [ 96.124284][ T1077] ? forget_original_parent+0x5c/0xdb0 [ 96.124286][ T1077] _printk+0xc7/0x100 [ 96.124289][ T1077] ? snapshot_read.cold+0x21/0x21 [ 96.124291][ T1077] ? do_raw_spin_lock+0x131/0x280 [ 96.124293][ T1077] ? do_raw_spin_lock+0x131/0x280 [ 96.124295][ T1077] ? __rwlock_init+0x150/0x150 [ 96.124297][ T1077] ? do_raw_spin_lock+0x131/0x280 [ 96.124299][ T1077] do_exit.cold+0x82/0x9c [ 96.124302][ T1077] ? exit_notify+0x890/0x890 [ 96.124303][ T1077] ? posixtimer_sig_unignore.isra.0+0x5f0/0x5f0 [ 96.124306][ T1077] ? rcu_is_watching+0x16/0xd0 [ 96.124307][ T1077] do_group_exit+0xb8/0x370 [ 96.124309][ T1077] __x64_sys_exit_group+0x3c/0x50 [ 96.124311][ T1077] x64_sys_call+0x1567/0x1570 [ 96.124313][ T1077] do_syscall_64+0x10e/0x570 [ 96.124317][ T1077] ? exc_page_fault+0xee/0x100 [ 96.124319][ T1077] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 96.124322][ T1077] RIP: 0033:0x7fd8b76121b8 [ 96.124324][ T1077] Code: Unable to access opcode bytes at 0x7fd8b761218e. [ 96.124325][ T1077] RSP: 002b:00007ffd9d874248 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 96.124328][ T1077] RAX: ffffffffffffffda RBX: 00007fd8b7742f88 RCX: 00007fd8b76121b8 [ 96.124330][ T1077] RDX: 00007fd8b754fa48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 96.124331][ T1077] RBP: 00007ffd9d8742a0 R08: 0000000000000000 R09: 0000000000000000 [ 96.124331][ T1077] R10: 00007ffd9d8740e0 R11: 0000000000000246 R12: 0000000000000001 [ 96.124332][ T1077] R13: 0000000000000000 R14: 00007fd8b7741680 R15: 00007fd8b7742fa0 [ 96.124334][ T1077] [ 96.307213][ T12] br0: port 1(veth0) entered disabled state [ 96.309044][ T12] veth0 (unregistering): left allmulticast mode [ 96.309305][ T12] veth0 (unregistering): left promiscuous mode [ 96.309564][ T12] br0: port 1(veth0) entered disabled state [ 96.391547][ T12] br0: port 2(veth1) entered disabled state [ 96.393256][ T12] veth1 (unregistering): left allmulticast mode [ 96.393452][ T12] veth1 (unregistering): left promiscuous mode [ 96.393659][ T12] br0: port 2(veth1) entered disabled state