[ 34.809463][ T1379] br0: port 1(vx10) entered blocking state [ 34.809632][ T1379] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 34.809634][ T1379] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 1379, name: ip [ 34.809635][ T1379] preempt_count: 1, expected: 0 [ 34.809636][ T1379] RCU nest depth: 0, expected: 0 [ 34.809637][ T1379] locks held by ip/1379: 5, last CPU#3: [ 34.809639][ T1379] #0: ffffffffa1f1b740 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x9a8/0x11b0 [ 34.809650][ T1379] #1: ffffffffa177ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 34.809656][ T1379] #2: ffffffffa177de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 34.809660][ T1379] #3: ffffffffa169d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 34.809664][ T1379] #4: ffffffffa169d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 34.809668][ T1379] irq event stamp: 14534 [ 34.809669][ T1379] hardirqs last enabled at (14533): [] __down_trylock_console_sem+0x86/0xa0 [ 34.809672][ T1379] hardirqs last disabled at (14534): [] console_emit_next_record+0x3d4/0x4c0 [ 34.809674][ T1379] softirqs last enabled at (14452): [] __alloc_skb+0x4c2/0x5f0 [ 34.809677][ T1379] softirqs last disabled at (14450): [] __alloc_skb+0x4c2/0x5f0 [ 34.809679][ T1379] Preemption disabled at: [ 34.809680][ T1379] [] vprintk_emit+0x31b/0x3e0 [ 34.809685][ T1379] CPU: 3 UID: 0 PID: 1379 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 34.809688][ T1379] Tainted: [W]=WARN [ 34.809689][ T1379] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 34.809691][ T1379] Call Trace: [ 34.809692][ T1379] [ 34.809694][ T1379] dump_stack_lvl+0x6f/0xa0 [ 34.809700][ T1379] ? vprintk_emit+0x31b/0x3e0 [ 34.809701][ T1379] __might_resched.cold+0x1fe/0x2c1 [ 34.809705][ T1379] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 34.809709][ T1379] ? __kmalloc_noprof+0xdb/0x760 [ 34.809714][ T1379] __kmalloc_noprof+0x443/0x760 [ 34.809716][ T1379] ? alloc_buf.isra.0+0x4b/0x260 [ 34.809722][ T1379] ? do_raw_spin_unlock+0x59/0x250 [ 34.809725][ T1379] alloc_buf.isra.0+0x4b/0x260 [ 34.809729][ T1379] put_chars+0x1e1/0x2f0 [ 34.809731][ T1379] ? __send_to_port+0x420/0x420 [ 34.809734][ T1379] ? validate_chain+0x34a/0xc20 [ 34.809739][ T1379] hvc_console_print+0x292/0x780 [ 34.809746][ T1379] ? hvc_write+0x3a0/0x3a0 [ 34.809749][ T1379] ? rcu_is_watching+0x16/0xd0 [ 34.809752][ T1379] ? lock_acquire+0x13c/0x160 [ 34.809756][ T1379] console_emit_next_record+0x22f/0x4c0 [ 34.809759][ T1379] ? devkmsg_read+0x4b0/0x4b0 [ 34.809761][ T1379] ? console_flush_one_record+0x106/0x710 [ 34.809764][ T1379] ? rcu_is_watching+0x16/0xd0 [ 34.809766][ T1379] ? lock_acquire+0x13c/0x160 [ 34.809770][ T1379] console_flush_one_record+0x46f/0x710 [ 34.809774][ T1379] ? console_emit_next_record+0x4c0/0x4c0 [ 34.809776][ T1379] ? __lock_acquire+0x518/0xc20 [ 34.809781][ T1379] console_unlock+0xee/0x1f0 [ 34.809784][ T1379] ? console_flush_one_record+0x710/0x710 [ 34.809786][ T1379] ? rcu_is_watching+0x16/0xd0 [ 34.809787][ T1379] ? lock_acquire+0xe0/0x160 [ 34.809791][ T1379] ? __down_trylock_console_sem+0x5e/0xa0 [ 34.809793][ T1379] ? vprintk_emit+0x320/0x3e0 [ 34.809796][ T1379] vprintk_emit+0x37c/0x3e0 [ 34.809799][ T1379] ? wake_up_klogd_work_func+0x90/0x90 [ 34.809800][ T1379] ? __lock_release.isra.0+0x69/0x1a0 [ 34.809802][ T1379] ? _raw_spin_unlock_irqrestore+0x40/0x80 [ 34.809806][ T1379] ? mark_held_locks+0x40/0x70 [ 34.809810][ T1379] _printk+0xc7/0x100 [ 34.809813][ T1379] ? snapshot_read.cold+0x21/0x21 [ 34.809816][ T1379] ? br_multicast_flood+0x960/0x960 [ 34.809820][ T1379] ? do_setlink.isra.0+0x9ec/0x2a60 [ 34.809821][ T1379] ? rtnl_newlink+0x9f1/0x11b0 [ 34.809822][ T1379] ? rtnetlink_rcv_msg+0x6fd/0xbd0 [ 34.809827][ T1379] br_set_state+0x22f/0x430 [ 34.809831][ T1379] br_init_port+0xc4/0x200 [ 34.809833][ T1379] new_nbp+0x3a0/0x650 [ 34.809837][ T1379] br_add_if+0x212/0x1320 [ 34.809840][ T1379] ? is_bpf_text_address+0x72/0x110 [ 34.809843][ T1379] ? kernel_text_address+0x149/0x170 [ 34.809848][ T1379] do_set_master+0x3b2/0x780 [ 34.809852][ T1379] do_setlink.isra.0+0x9ec/0x2a60 [ 34.809855][ T1379] ? stack_trace_save+0x93/0xc0 [ 34.809859][ T1379] ? rtnl_link_get_size+0x350/0x350 [ 34.809860][ T1379] ? rcu_read_lock_any_held+0x66/0x90 [ 34.809862][ T1379] ? stack_depot_save_flags+0x38e/0x790 [ 34.809866][ T1379] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 34.809868][ T1379] ? rcu_read_lock_any_held+0x3c/0x90 [ 34.809870][ T1379] ? validate_chain+0x38b/0xc20 [ 34.809872][ T1379] ? kasan_save_stack+0x3d/0x50 [ 34.809874][ T1379] ? kasan_save_stack+0x2f/0x50 [ 34.809875][ T1379] ? kasan_save_track+0x14/0x30 [ 34.809877][ T1379] ? __kasan_kmalloc+0x7b/0x90 [ 34.809879][ T1379] ? __lock_acquire+0x518/0xc20 [ 34.809881][ T1379] ? snd_ac97_proc_read_main+0x4de/0x1f00 [ 34.809884][ T1379] ? ___sys_sendmsg+0xd0/0x1d0 [ 34.809887][ T1379] ? lock_acquire.part.0+0xd4/0x280 [ 34.809889][ T1379] ? rtnl_newlink+0x9a8/0x11b0 [ 34.809892][ T1379] ? rcu_is_watching+0x16/0xd0 [ 34.809894][ T1379] ? lock_acquire+0x13c/0x160 [ 34.809895][ T1379] ? rcu_is_watching+0x16/0xd0 [ 34.809896][ T1379] ? rcu_is_watching+0x16/0xd0 [ 34.809898][ T1379] ? trace_contention_end+0xb3/0x180 [ 34.809900][ T1379] ? __mutex_lock+0x1db/0x1ea0 [ 34.809901][ T1379] ? __mutex_lock+0x9a3/0x1ea0 [ 34.809903][ T1379] ? rtnl_newlink+0x9a8/0x11b0 [ 34.809906][ T1379] ? ww_mutex_lock+0x160/0x160 [ 34.809908][ T1379] ? nla_get_range_signed+0x3d0/0x3d0 [ 34.809912][ T1379] ? rcu_is_watching+0x16/0xd0 [ 34.809915][ T1379] ? __rtnl_newlink+0x3fa/0xa50 [ 34.809920][ T1379] rtnl_newlink+0x9f1/0x11b0 [ 34.809925][ T1379] ? rtnl_bridge_getlink+0x850/0x850 [ 34.809927][ T1379] ? __lock_acquire+0x518/0xc20 [ 34.809931][ T1379] ? lock_acquire.part.0+0xd4/0x280 [ 34.809933][ T1379] ? find_held_lock+0x2b/0x80 [ 34.809935][ T1379] ? rtnl_bridge_getlink+0x850/0x850 [ 34.809937][ T1379] ? __lock_release.isra.0+0x69/0x1a0 [ 34.809941][ T1379] ? rtnl_bridge_getlink+0x850/0x850 [ 34.809943][ T1379] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 34.809946][ T1379] ? rtnl_link_fill+0x920/0x920 [ 34.809947][ T1379] ? __lock_acquire+0x518/0xc20 [ 34.809952][ T1379] ? lock_acquire.part.0+0xd4/0x280 [ 34.809954][ T1379] ? find_held_lock+0x2b/0x80 [ 34.809957][ T1379] netlink_rcv_skb+0x14e/0x3a0 [ 34.809960][ T1379] ? rtnl_link_fill+0x920/0x920 [ 34.809963][ T1379] ? netlink_ack+0xcf0/0xcf0 [ 34.809969][ T1379] ? netlink_deliver_tap+0xc5/0x330 [ 34.809972][ T1379] ? netlink_deliver_tap+0x13c/0x330 [ 34.809976][ T1379] netlink_unicast+0x486/0x750 [ 34.809980][ T1379] ? netlink_attachskb+0x810/0x810 [ 34.809982][ T1379] ? find_held_lock+0x2b/0x80 [ 34.809987][ T1379] netlink_sendmsg+0x75b/0xc90 [ 34.809990][ T1379] ? netlink_unicast+0x750/0x750 [ 34.809994][ T1379] ? __lock_release.isra.0+0x69/0x1a0 [ 34.809996][ T1379] ? __import_iovec+0x36c/0x620 [ 34.810001][ T1379] __sock_sendmsg+0xce/0x190 [ 34.810004][ T1379] ____sys_sendmsg+0x61a/0x860 [ 34.810006][ T1379] ? copy_msghdr_from_user+0x279/0x420 [ 34.810008][ T1379] ? sock_write_iter+0x400/0x400 [ 34.810010][ T1379] ? move_addr_to_kernel+0x40/0x40 [ 34.810017][ T1379] ___sys_sendmsg+0x14e/0x1d0 [ 34.810020][ T1379] ? copy_msghdr_from_user+0x420/0x420 [ 34.810036][ T1379] __sys_sendmsg+0x12c/0x1d0 [ 34.810038][ T1379] ? __sys_sendmsg_sock+0x20/0x20 [ 34.810045][ T1379] ? rcu_is_watching+0x16/0xd0 [ 34.810048][ T1379] do_syscall_64+0xff/0x530 [ 34.810050][ T1379] ? exc_page_fault+0xee/0x100 [ 34.810053][ T1379] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 34.810055][ T1379] RIP: 0033:0x7f60a05dd54e [ 34.810059][ T1379] 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 [ 34.810061][ T1379] RSP: 002b:00007ffccaf96370 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 34.810063][ T1379] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f60a05dd54e [ 34.810065][ T1379] RDX: 0000000000000000 RSI: 00007ffccaf96420 RDI: 0000000000000005 [ 34.810065][ T1379] RBP: 00007ffccaf96380 R08: 0000000000000000 R09: 0000000000000000 [ 34.810066][ T1379] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a911b13 [ 34.810067][ T1379] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffccaf96af0 [ 34.810074][ T1379] [ 34.843397][ T1379] br0: port 1(vx10) entered disabled state [ 34.843826][ T1379] vx10: entered allmulticast mode [ 34.845142][ T1379] vx10: entered promiscuous mode [ 34.859283][ T1379] ip (1379) used greatest stack depth: 23336 bytes left [ 35.314393][ T1406] vx10: left allmulticast mode [ 35.315539][ T1406] vx10: left promiscuous mode [ 35.321302][ T1406] br0: port 1(vx10) entered disabled state