[ 29.651287][ T566] 8021q: 802.1Q VLAN Support v1.8 [ 30.690214][ T612] gre: GRE over IPv4 demultiplexer driver [ 30.702497][ T612] ip_gre: GRE over IPv4 tunneling driver [ 30.998403][ T629] lag: Mode changed to "loadbalance" [ 31.049096][ T632] lag: Port device veth2 added [ 31.170462][ T637] lag: Port device veth4 added [ 31.227506][ T639] 8021q: adding VLAN 0 to HW filter on device lag [ 31.254174][ T641] br1: port 1(lag) entered blocking state [ 31.254359][ T641] br1: port 1(lag) entered disabled state [ 31.254560][ T641] lag: entered allmulticast mode [ 31.255229][ T641] veth2: entered allmulticast mode [ 31.255408][ T641] veth4: entered allmulticast mode [ 31.257630][ T641] veth2: entered promiscuous mode [ 31.257937][ T641] veth4: entered promiscuous mode [ 31.285544][ T642] br1: port 1(lag) entered blocking state [ 31.285799][ T642] br1: port 1(lag) entered forwarding state [ 36.856924][ T682] Mirror/redirect action on [ 50.677820][ T469] br1: port 1(lag) entered disabled state [ 55.959908][ T37] br1: port 1(lag) entered blocking state [ 55.960083][ T37] br1: port 1(lag) entered forwarding state [ 56.015904][ C2] [ 56.015963][ C2] ================================ [ 56.016044][ C2] WARNING: inconsistent lock state [ 56.016121][ C2] 7.1.0-rc5-virtme #1 Not tainted [ 56.016199][ C2] -------------------------------- [ 56.016275][ C2] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. [ 56.016369][ C2] ksoftirqd/2/28 [HC0[0]:SC1[1]:HE1:SE0] takes: [ 56.016468][ C2] ffffffffc055f7b8 (mirred_list_lock){+.?.}-{3:3}, at: tcf_mirred_release+0x1d/0x2e0 [act_mirred] [ 56.016629][ C2] {SOFTIRQ-ON-W} state was registered at: [ 56.016707][ C2] __lock_acquire+0x378/0xc10 [ 56.016796][ C2] lock_acquire.part.0+0xbc/0x260 [ 56.016872][ C2] _raw_spin_lock+0x33/0x40 [ 56.016953][ C2] tcf_mirred_init+0x844/0xd70 [act_mirred] [ 56.017049][ C2] tcf_action_init_1+0x428/0x6b0 [ 56.017128][ C2] tcf_action_init+0x3cf/0x890 [ 56.017207][ C2] tcf_exts_validate_ex+0x411/0x670 [ 56.017283][ C2] fl_change+0xed4/0x4e77 [cls_flower] [ 56.017360][ C2] tc_new_tfilter+0x875/0x21e0 [ 56.017438][ C2] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 56.017516][ C2] netlink_rcv_skb+0x14e/0x3a0 [ 56.017594][ C2] netlink_unicast+0x486/0x750 [ 56.017671][ C2] netlink_sendmsg+0x735/0xc60 [ 56.017749][ C2] ____sys_sendmsg+0x419/0x850 [ 56.017834][ C2] ___sys_sendmsg+0x14e/0x1d0 [ 56.017913][ C2] __sys_sendmsg+0x145/0x1f0 [ 56.017991][ C2] do_syscall_64+0x117/0x590 [ 56.018070][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 56.018167][ C2] irq event stamp: 875794 [ 56.018227][ C2] hardirqs last enabled at (875794): [] _raw_spin_unlock_irqrestore+0x53/0x80 [ 56.018420][ C2] hardirqs last disabled at (875793): [] _raw_spin_lock_irqsave+0x50/0x60 [ 56.018569][ C2] softirqs last enabled at (875548): [] handle_softirqs+0x611/0x940 [ 56.018739][ C2] softirqs last disabled at (875555): [] run_ksoftirqd+0x39/0x60 [ 56.018880][ C2] [ 56.018880][ C2] other info that might help us debug this: [ 56.019029][ C2] Possible unsafe locking scenario: [ 56.019029][ C2] [ 56.019144][ C2] CPU0 [ 56.019201][ C2] ---- [ 56.019260][ C2] lock(mirred_list_lock); [ 56.019376][ C2] [ 56.019437][ C2] lock(mirred_list_lock); [ 56.019516][ C2] [ 56.019516][ C2] *** DEADLOCK *** [ 56.019516][ C2] [ 56.019664][ C2] 1 lock held by ksoftirqd/2/28: [ 56.019743][ C2] #0: ffffffff94d77c00 (rcu_callback){....}-{0:0}, at: rcu_do_batch+0x389/0x1020 [ 56.019883][ C2] [ 56.019883][ C2] stack backtrace: [ 56.020016][ C2] CPU: 2 UID: 0 PID: 28 Comm: ksoftirqd/2 Not tainted 7.1.0-rc5-virtme #1 PREEMPT(full) [ 56.020018][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 56.020021][ C2] Call Trace: [ 56.020022][ C2] [ 56.020023][ C2] dump_stack_lvl+0x6f/0xa0 [ 56.020028][ C2] print_usage_bug.part.0.cold+0xa9/0xb7 [ 56.020031][ C2] mark_lock_irq+0x4e3/0x9c0 [ 56.020033][ C2] ? kthread+0x367/0x460 [ 56.020036][ C2] ? save_trace+0x68/0x280 [ 56.020038][ C2] ? __lock_acquire+0x508/0xc10 [ 56.020039][ C2] mark_lock+0x1d7/0xa00 [ 56.020041][ C2] mark_usage+0x42/0x170 [ 56.020042][ C2] __lock_acquire+0x378/0xc10 [ 56.020044][ C2] ? rcu_is_watching+0x15/0xd0 [ 56.020047][ C2] lock_acquire.part.0+0xbc/0x260 [ 56.020048][ C2] ? tcf_mirred_release+0x1d/0x2e0 [act_mirred] [ 56.020050][ C2] ? rcu_is_watching+0x15/0xd0 [ 56.020051][ C2] ? lock_acquire+0x134/0x160 [ 56.020053][ C2] _raw_spin_lock+0x33/0x40 [ 56.020055][ C2] ? tcf_mirred_release+0x1d/0x2e0 [act_mirred] [ 56.020056][ C2] tcf_mirred_release+0x1d/0x2e0 [act_mirred] [ 56.020058][ C2] tcf_action_rcu_free+0x74/0x1a0 [ 56.020060][ C2] ? rcu_do_batch+0x2b4/0x1020 [ 56.020061][ C2] rcu_do_batch+0x2b6/0x1020 [ 56.020064][ C2] ? rcu_is_watching+0x15/0xd0 [ 56.020065][ C2] ? trace_rcu_batch_end+0x330/0x330 [ 56.020067][ C2] ? finish_task_switch.isra.0+0x216/0x990 [ 56.020069][ C2] ? rcu_is_watching+0x15/0xd0 [ 56.020071][ C2] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 56.020074][ C2] ? trace_irq_disable.constprop.0+0x9b/0x180 [ 56.020075][ C2] ? lockdep_hardirqs_on_prepare.part.0+0x9a/0x160 [ 56.020077][ C2] ? lockdep_hardirqs_on+0x8c/0x130 [ 56.020080][ C2] rcu_core+0x2bf/0x640 [ 56.020082][ C2] handle_softirqs+0x1d8/0x940 [ 56.020083][ C2] ? find_held_lock+0x2b/0x80 [ 56.020086][ C2] ? _local_bh_enable+0xd0/0xd0 [ 56.020088][ C2] ? rcu_is_watching+0x15/0xd0 [ 56.020090][ C2] run_ksoftirqd+0x39/0x60 [ 56.020091][ C2] smpboot_thread_fn+0x2fb/0x9b0 [ 56.020094][ C2] ? sort_range+0x20/0x20 [ 56.020096][ C2] kthread+0x367/0x460 [ 56.020097][ C2] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 56.020099][ C2] ? kthread_affine_node+0x330/0x330 [ 56.020100][ C2] ret_from_fork+0x474/0x6b0 [ 56.020103][ C2] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 56.020105][ C2] ? __switch_to+0x5a3/0xe00 [ 56.020108][ C2] ? kthread_affine_node+0x330/0x330 [ 56.020109][ C2] ret_from_fork_asm+0x11/0x20 [ 56.020113][ C2] [ 69.791377][ T46] br1: port 1(lag) entered disabled state [ 74.969629][ T469] br1: port 1(lag) entered blocking state [ 74.969766][ T469] br1: port 1(lag) entered forwarding state [ 75.104584][ T791] lag: left allmulticast mode [ 75.104747][ T791] veth2: left allmulticast mode [ 75.104883][ T791] veth4: left allmulticast mode [ 75.105058][ T791] br1: port 1(lag) entered disabled state [ 75.105921][ T791] veth2: left promiscuous mode [ 75.106055][ T791] veth4: left promiscuous mode [ 75.121387][ T629] lag: Port device veth4 removed [ 75.122516][ T629] lag: Port device veth2 removed