[ 1126.935939][ T12] [ 1126.936035][ T12] ======================================================== [ 1126.936180][ T12] WARNING: possible irq lock inversion dependency detected [ 1126.936319][ T12] 7.1.0-rc5-virtme #1 Not tainted [ 1126.936415][ T12] -------------------------------------------------------- [ 1126.936553][ T12] kworker/u16:0/12 just changed the state of lock: [ 1126.936667][ T12] ffffffff925b8eb8 (acaddr_hash_lock){+.+.}-{3:3}, at: __ipv6_dev_ac_dec+0x236/0x5d0 [ 1126.936830][ T12] but this lock was taken by another, SOFTIRQ-safe lock in the past: [ 1126.936970][ T12] (&ndev->lock){++--}-{3:3} [ 1126.936973][ T12] [ 1126.936973][ T12] [ 1126.936973][ T12] and interrupts could create inverse lock ordering between them. [ 1126.936973][ T12] [ 1126.937301][ T12] [ 1126.937301][ T12] other info that might help us debug this: [ 1126.937436][ T12] Possible interrupt unsafe locking scenario: [ 1126.937436][ T12] [ 1126.937571][ T12] CPU0 CPU1 [ 1126.937665][ T12] ---- ---- [ 1126.937754][ T12] lock(acaddr_hash_lock); [ 1126.937845][ T12] local_irq_disable(); [ 1126.937958][ T12] lock(&ndev->lock); [ 1126.938069][ T12] lock(acaddr_hash_lock); [ 1126.938182][ T12] [ 1126.938252][ T12] lock(&ndev->lock); [ 1126.938323][ T12] [ 1126.938323][ T12] *** DEADLOCK *** [ 1126.938323][ T12] [ 1126.938457][ T12] 4 locks held by kworker/u16:0/12: [ 1126.938551][ T12] #0: ff110000019d9d40 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xd55/0x1410 [ 1126.938748][ T12] #1: ffa00000000c7d10 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0xdb7/0x1410 [ 1126.938904][ T12] #2: ffffffff924922a8 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xbf/0x890 [ 1126.939061][ T12] #3: ffffffff924ae080 (rtnl_mutex){+.+.}-{4:4}, at: default_device_exit_batch+0x9a/0x600 [ 1126.939245][ T12] [ 1126.939245][ T12] the shortest dependencies between 2nd lock and 1st lock: [ 1126.939399][ T12] -> (&ndev->lock){++--}-{3:3} { [ 1126.939491][ T12] HARDIRQ-ON-W at: [ 1126.939559][ T12] __lock_acquire+0x378/0xc10 [ 1126.939683][ T12] lock_acquire.part.0+0xbc/0x260 [ 1126.939794][ T12] _raw_write_lock_bh+0x38/0x50 [ 1126.939908][ T12] addrconf_permanent_addr+0x108/0x9c0 [ 1126.940047][ T12] addrconf_notify+0x151/0xf30 [ 1126.940156][ T12] notifier_call_chain+0xb0/0x320 [ 1126.940272][ T12] __dev_notify_flags+0xde/0x280 [ 1126.940382][ T12] netif_change_flags+0xfe/0x190 [ 1126.940491][ T12] do_setlink.isra.0+0x1cc3/0x2750 [ 1126.940608][ T12] rtnl_newlink+0x8d1/0xef0 [ 1126.940715][ T12] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 1126.940822][ T12] netlink_rcv_skb+0x14e/0x3a0 [ 1126.940929][ T12] netlink_unicast+0x486/0x750 [ 1126.941035][ T12] netlink_sendmsg+0x735/0xc60 [ 1126.941143][ T12] ____sys_sendmsg+0x419/0x850 [ 1126.941248][ T12] ___sys_sendmsg+0x14e/0x1d0 [ 1126.941353][ T12] __sys_sendmsg+0x145/0x1f0 [ 1126.941460][ T12] do_syscall_64+0x117/0x590 [ 1126.941572][ T12] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 1126.941707][ T12] HARDIRQ-ON-R at: [ 1126.941770][ T12] __lock_acquire+0x378/0xc10 [ 1126.941876][ T12] lock_acquire.part.0+0xbc/0x260 [ 1126.941987][ T12] _raw_read_lock_bh+0x44/0x80 [ 1126.942097][ T12] inet6_fill_ifla6_attrs+0x1a72/0x2140 [ 1126.942227][ T12] inet6_fill_link_af+0x5c/0xe0 [ 1126.942334][ T12] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 1126.942463][ T12] rtnl_getlink+0x9c9/0xeb0 [ 1126.942569][ T12] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 1126.942685][ T12] netlink_rcv_skb+0x14e/0x3a0 [ 1126.942795][ T12] netlink_unicast+0x486/0x750 [ 1126.942906][ T12] netlink_sendmsg+0x735/0xc60 [ 1126.943011][ T12] ____sys_sendmsg+0x419/0x850 [ 1126.943117][ T12] ___sys_sendmsg+0x14e/0x1d0 [ 1126.943222][ T12] __sys_sendmsg+0x145/0x1f0 [ 1126.943329][ T12] do_syscall_64+0x117/0x590 [ 1126.943436][ T12] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 1126.943566][ T12] IN-SOFTIRQ-W at: [ 1126.943633][ T12] __lock_acquire+0x378/0xc10 [ 1126.943738][ T12] lock_acquire.part.0+0xbc/0x260 [ 1126.943852][ T12] _raw_write_lock+0x33/0x40 [ 1126.943958][ T12] addrconf_rs_timer+0xb0/0x770 [ 1126.944066][ T12] call_timer_fn+0x163/0x4f0 [ 1126.944177][ T12] __run_timers+0x68f/0xab0 [ 1126.944284][ T12] run_timer_softirq+0xf0/0x160 [ 1126.944390][ T12] handle_softirqs+0x1d8/0x940 [ 1126.944496][ T12] __irq_exit_rcu+0x103/0x1c0 [ 1126.944607][ T12] irq_exit_rcu+0xe/0x30 [ 1126.944720][ T12] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 1126.944855][ T12] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 1126.944989][ T12] pv_native_safe_halt+0xf/0x10 [ 1126.945135][ T12] default_idle+0x9/0x10 [ 1126.945249][ T12] default_idle_call+0x6e/0xb0 [ 1126.945362][ T12] cpuidle_idle_call.constprop.0+0x237/0x410 [ 1126.945499][ T12] do_idle+0xf5/0x160 [ 1126.945616][ T12] cpu_startup_entry+0x53/0x70 [ 1126.945727][ T12] rest_init+0x1f7/0x200 [ 1126.945837][ T12] start_kernel+0x3ad/0x3b0 [ 1126.945950][ T12] x86_64_start_reservations+0x24/0x30 [ 1126.946090][ T12] x86_64_start_kernel+0x12b/0x130 [ 1126.946201][ T12] common_startup_64+0x13e/0x148 [ 1126.946356][ T12] IN-SOFTIRQ-R at: [ 1126.946420][ T12] __lock_acquire+0x378/0xc10 [ 1126.946530][ T12] lock_acquire.part.0+0xbc/0x260 [ 1126.946646][ T12] _raw_read_lock_bh+0x44/0x80 [ 1126.946756][ T12] ipv6_get_lladdr+0xa8/0x3f0 [ 1126.946863][ T12] addrconf_rs_timer+0x251/0x770 [ 1126.946970][ T12] call_timer_fn+0x163/0x4f0 [ 1126.947080][ T12] __run_timers+0x68f/0xab0 [ 1126.947191][ T12] run_timer_softirq+0xf0/0x160 [ 1126.947298][ T12] handle_softirqs+0x1d8/0x940 [ 1126.947403][ T12] __irq_exit_rcu+0x103/0x1c0 [ 1126.947510][ T12] irq_exit_rcu+0xe/0x30 [ 1126.947623][ T12] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 1126.947752][ T12] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 1126.947880][ T12] pv_native_safe_halt+0xf/0x10 [ 1126.947987][ T12] default_idle+0x9/0x10 [ 1126.948093][ T12] default_idle_call+0x6e/0xb0 [ 1126.948201][ T12] cpuidle_idle_call.constprop.0+0x237/0x410 [ 1126.948334][ T12] do_idle+0xf5/0x160 [ 1126.948439][ T12] cpu_startup_entry+0x53/0x70 [ 1126.948543][ T12] rest_init+0x1f7/0x200 [ 1126.948655][ T12] start_kernel+0x3ad/0x3b0 [ 1126.948764][ T12] x86_64_start_reservations+0x24/0x30 [ 1126.948892][ T12] x86_64_start_kernel+0x12b/0x130 [ 1126.948999][ T12] common_startup_64+0x13e/0x148 [ 1126.949104][ T12] INITIAL USE at: [ 1126.949171][ T12] __lock_acquire+0x378/0xc10 [ 1126.949277][ T12] lock_acquire.part.0+0xbc/0x260 [ 1126.949383][ T12] _raw_write_lock_bh+0x38/0x50 [ 1126.949497][ T12] addrconf_permanent_addr+0x108/0x9c0 [ 1126.949633][ T12] addrconf_notify+0x151/0xf30 [ 1126.949744][ T12] notifier_call_chain+0xb0/0x320 [ 1126.949855][ T12] __dev_notify_flags+0xde/0x280 [ 1126.949966][ T12] netif_change_flags+0xfe/0x190 [ 1126.950081][ T12] do_setlink.isra.0+0x1cc3/0x2750 [ 1126.950243][ T12] rtnl_newlink+0x8d1/0xef0 [ 1126.950351][ T12] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 1126.950462][ T12] netlink_rcv_skb+0x14e/0x3a0 [ 1126.950569][ T12] netlink_unicast+0x486/0x750 [ 1126.950682][ T12] netlink_sendmsg+0x735/0xc60 [ 1126.950790][ T12] ____sys_sendmsg+0x419/0x850 [ 1126.951140][ T12] ___sys_sendmsg+0x14e/0x1d0 [ 1126.951249][ T12] __sys_sendmsg+0x145/0x1f0 [ 1126.951355][ T12] do_syscall_64+0x117/0x590 [ 1126.951483][ T12] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 1126.951621][ T12] INITIAL READ USE at: [ 1126.951711][ T12] __lock_acquire+0x378/0xc10 [ 1126.951863][ T12] lock_acquire.part.0+0xbc/0x260 [ 1126.951991][ T12] _raw_read_lock_bh+0x44/0x80 [ 1126.952103][ T12] inet6_fill_ifla6_attrs+0x1a72/0x2140 [ 1126.952277][ T12] inet6_fill_link_af+0x5c/0xe0 [ 1126.952386][ T12] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 1126.952519][ T12] rtnl_getlink+0x9c9/0xeb0 [ 1126.952675][ T12] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 1126.952781][ T12] netlink_rcv_skb+0x14e/0x3a0 [ 1126.952886][ T12] netlink_unicast+0x486/0x750 [ 1126.953039][ T12] netlink_sendmsg+0x735/0xc60 [ 1126.953145][ T12] ____sys_sendmsg+0x419/0x850 [ 1126.953250][ T12] ___sys_sendmsg+0x14e/0x1d0 [ 1126.953355][ T12] __sys_sendmsg+0x145/0x1f0 [ 1126.953505][ T12] do_syscall_64+0x117/0x590 [ 1126.953621][ T12] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 1126.953746][ T12] } [ 1126.953832][ T12] ... key at: [] __key.37+0x0/0x40 [ 1126.953961][ T12] ... acquired at: [ 1126.954025][ T12] __lock_acquire+0x508/0xc10 [ 1126.954110][ T12] lock_acquire.part.0+0xbc/0x260 [ 1126.954243][ T12] _raw_spin_lock+0x33/0x40 [ 1126.954343][ T12] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 1126.954446][ T12] __ipv6_dev_ac_inc+0x57e/0x930 [ 1126.954529][ T12] addrconf_join_anycast+0x1bc/0x260 [ 1126.954663][ T12] dev_forward_change+0x2be/0x850 [ 1126.954746][ T12] addrconf_fixup_forwarding+0x2af/0x4d0 [ 1126.954849][ T12] addrconf_sysctl_forward+0x209/0x2b0 [ 1126.954980][ T12] proc_sys_call_handler+0x31b/0x480 [ 1126.955066][ T12] new_sync_write+0x333/0x750 [ 1126.955151][ T12] vfs_write+0x6a4/0xc10 [ 1126.955244][ T12] ksys_write+0x116/0x250 [ 1126.955328][ T12] do_syscall_64+0x117/0x590 [ 1126.955417][ T12] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 1126.955529][ T12] [ 1126.955574][ T12] -> (acaddr_hash_lock){+.+.}-{3:3} { [ 1126.955711][ T12] HARDIRQ-ON-W at: [ 1126.955818][ T12] __lock_acquire+0x378/0xc10 [ 1126.955928][ T12] lock_acquire.part.0+0xbc/0x260 [ 1126.956034][ T12] _raw_spin_lock+0x33/0x40 [ 1126.956183][ T12] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 1126.956307][ T12] __ipv6_dev_ac_inc+0x57e/0x930 [ 1126.956414][ T12] addrconf_join_anycast+0x1bc/0x260 [ 1126.956566][ T12] dev_forward_change+0x2be/0x850 [ 1126.956677][ T12] addrconf_fixup_forwarding+0x2af/0x4d0 [ 1126.956803][ T12] addrconf_sysctl_forward+0x209/0x2b0 [ 1126.956960][ T12] proc_sys_call_handler+0x31b/0x480 [ 1126.957072][ T12] new_sync_write+0x333/0x750 [ 1126.957177][ T12] vfs_write+0x6a4/0xc10 [ 1126.957326][ T12] ksys_write+0x116/0x250 [ 1126.957432][ T12] do_syscall_64+0x117/0x590 [ 1126.957544][ T12] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 1126.957723][ T12] SOFTIRQ-ON-W at: [ 1126.957787][ T12] __lock_acquire+0x378/0xc10 [ 1126.957899][ T12] lock_acquire.part.0+0xbc/0x260 [ 1126.958016][ T12] _raw_spin_lock+0x33/0x40 [ 1126.958189][ T12] __ipv6_dev_ac_dec+0x236/0x5d0 [ 1126.958305][ T12] addrconf_leave_anycast+0x1bc/0x260 [ 1126.958416][ T12] __ipv6_ifa_notify+0x6b4/0xad0 [ 1126.958571][ T12] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 1126.958694][ T12] addrconf_notify+0x2c8/0xf30 [ 1126.958808][ T12] notifier_call_chain+0xb0/0x320 [ 1126.958962][ T12] netif_close_many+0x2c9/0x640 [ 1126.959075][ T12] unregister_netdevice_many_notify+0x671/0x19a0 [ 1126.959209][ T12] default_device_exit_batch+0x38b/0x600 [ 1126.959345][ T12] ops_undo_list+0x2ce/0x8f0 [ 1126.959456][ T12] cleanup_net+0x431/0x890 [ 1126.959568][ T12] process_one_work+0xdf8/0x1410 [ 1126.959729][ T12] worker_thread+0x4f1/0xd60 [ 1126.959840][ T12] kthread+0x367/0x460 [ 1126.959928][ T12] ret_from_fork+0x474/0x6b0 [ 1126.960043][ T12] ret_from_fork_asm+0x11/0x20 [ 1126.960199][ T12] INITIAL USE at: [ 1126.960269][ T12] __lock_acquire+0x378/0xc10 [ 1126.960382][ T12] lock_acquire.part.0+0xbc/0x260 [ 1126.960537][ T12] _raw_spin_lock+0x33/0x40 [ 1126.960651][ T12] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 1126.960788][ T12] __ipv6_dev_ac_inc+0x57e/0x930 [ 1126.960947][ T12] addrconf_join_anycast+0x1bc/0x260 [ 1126.961062][ T12] dev_forward_change+0x2be/0x850 [ 1126.961173][ T12] addrconf_fixup_forwarding+0x2af/0x4d0 [ 1126.961350][ T12] addrconf_sysctl_forward+0x209/0x2b0 [ 1126.961462][ T12] proc_sys_call_handler+0x31b/0x480 [ 1126.961572][ T12] new_sync_write+0x333/0x750 [ 1126.961696][ T12] vfs_write+0x6a4/0xc10 [ 1126.961851][ T12] ksys_write+0x116/0x250 [ 1126.961963][ T12] do_syscall_64+0x117/0x590 [ 1126.962076][ T12] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 1126.962255][ T12] } [ 1126.962300][ T12] ... key at: [] acaddr_hash_lock+0x18/0x4520 [ 1126.962441][ T12] ... acquired at: [ 1126.962506][ T12] mark_lock+0x1d7/0xa00 [ 1126.962642][ T12] mark_usage+0x105/0x170 [ 1126.962730][ T12] __lock_acquire+0x378/0xc10 [ 1126.962819][ T12] lock_acquire.part.0+0xbc/0x260 [ 1126.962909][ T12] _raw_spin_lock+0x33/0x40 [ 1126.963039][ T12] __ipv6_dev_ac_dec+0x236/0x5d0 [ 1126.963128][ T12] addrconf_leave_anycast+0x1bc/0x260 [ 1126.963216][ T12] __ipv6_ifa_notify+0x6b4/0xad0 [ 1126.963304][ T12] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 1126.963395][ T12] addrconf_notify+0x2c8/0xf30 [ 1126.963484][ T12] notifier_call_chain+0xb0/0x320 [ 1126.963573][ T12] netif_close_many+0x2c9/0x640 [ 1126.963670][ T12] unregister_netdevice_many_notify+0x671/0x19a0 [ 1126.963823][ T12] default_device_exit_batch+0x38b/0x600 [ 1126.963934][ T12] ops_undo_list+0x2ce/0x8f0 [ 1126.964023][ T12] cleanup_net+0x431/0x890 [ 1126.964155][ T12] process_one_work+0xdf8/0x1410 [ 1126.964243][ T12] worker_thread+0x4f1/0xd60 [ 1126.964332][ T12] kthread+0x367/0x460 [ 1126.964398][ T12] ret_from_fork+0x474/0x6b0 [ 1126.964530][ T12] ret_from_fork_asm+0x11/0x20 [ 1126.964621][ T12] [ 1126.964665][ T12] [ 1126.964665][ T12] stack backtrace: [ 1126.964776][ T12] CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 7.1.0-rc5-virtme #1 PREEMPT(full) [ 1126.964779][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1126.964781][ T12] Workqueue: netns cleanup_net [ 1126.964784][ T12] Call Trace: [ 1126.964786][ T12] [ 1126.964788][ T12] dump_stack_lvl+0x6f/0xa0 [ 1126.964792][ T12] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 1126.964795][ T12] mark_lock_irq+0x989/0x9c0 [ 1126.964799][ T12] mark_lock+0x1d7/0xa00 [ 1126.964801][ T12] mark_usage+0x105/0x170 [ 1126.964802][ T12] __lock_acquire+0x378/0xc10 [ 1126.964804][ T12] lock_acquire.part.0+0xbc/0x260 [ 1126.964806][ T12] ? __ipv6_dev_ac_dec+0x236/0x5d0 [ 1126.964807][ T12] ? rcu_is_watching+0x15/0xd0 [ 1126.964810][ T12] ? do_raw_read_unlock+0x70/0x70 [ 1126.964812][ T12] ? lock_acquire+0x134/0x160 [ 1126.964813][ T12] _raw_spin_lock+0x33/0x40 [ 1126.964815][ T12] ? __ipv6_dev_ac_dec+0x236/0x5d0 [ 1126.964816][ T12] __ipv6_dev_ac_dec+0x236/0x5d0 [ 1126.964818][ T12] addrconf_leave_anycast+0x1bc/0x260 [ 1126.964820][ T12] ? cleanup_prefix_route+0x550/0x550 [ 1126.964822][ T12] ? addrconf_add_mroute+0x1e0/0x1e0 [ 1126.964823][ T12] ? nlmsg_notify+0x62/0x250 [ 1126.964826][ T12] __ipv6_ifa_notify+0x6b4/0xad0 [ 1126.964828][ T12] ? inet6_fill_ifaddr+0xba0/0xba0 [ 1126.964830][ T12] ? find_held_lock+0x2b/0x80 [ 1126.964832][ T12] ? __lock_release.isra.0+0x6b/0x1a0 [ 1126.964833][ T12] ? __rwlock_init+0x150/0x150 [ 1126.964835][ T12] ? mark_held_locks+0x40/0x70 [ 1126.964836][ T12] ? addrconf_ifdown.isra.0+0xa70/0x15f0 [ 1126.964838][ T12] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 1126.964840][ T12] ? __timer_delete_sync+0xdb/0x130 [ 1126.964843][ T12] ? addrconf_dad_run+0x1b0/0x1b0 [ 1126.964845][ T12] ? neigh_flush_one+0x580/0x580 [ 1126.964847][ T12] addrconf_notify+0x2c8/0xf30 [ 1126.964849][ T12] ? fib_netdev_event+0x1a9/0x5d0 [ 1126.964852][ T12] notifier_call_chain+0xb0/0x320 [ 1126.964855][ T12] netif_close_many+0x2c9/0x640 [ 1126.964856][ T12] ? lock_acquire+0x134/0x160 [ 1126.964858][ T12] ? rcu_is_watching+0x15/0xd0 [ 1126.964859][ T12] ? rcu_is_watching+0x15/0xd0 [ 1126.964860][ T12] ? __dev_close_many+0x530/0x530 [ 1126.964862][ T12] ? netif_close_many_and_unlock+0x22/0x2c0 [ 1126.964864][ T12] ? __rtnl_unlock+0x5b/0x100 [ 1126.964866][ T12] unregister_netdevice_many_notify+0x671/0x19a0 [ 1126.964868][ T12] ? mutex_is_locked+0x1c/0x50 [ 1126.964870][ T12] ? unregister_netdevice_queued+0x80/0x80 [ 1126.964872][ T12] ? mutex_is_locked+0x1c/0x50 [ 1126.964874][ T12] ? rtnl_is_locked+0x15/0x20 [ 1126.964875][ T12] ? unregister_netdevice_queue+0x6a/0x470 [ 1126.964877][ T12] ? unregister_netdevice_many+0x20/0x20 [ 1126.964880][ T12] default_device_exit_batch+0x38b/0x600 [ 1126.964882][ T12] ? generic_xdp_install+0x400/0x400 [ 1126.964883][ T12] ? ipmr_free_table+0x12e/0x2a0 [ 1126.964886][ T12] ? unregister_netdev+0x60/0x60 [ 1126.964887][ T12] ? rtnl_is_locked+0x15/0x20 [ 1126.964889][ T12] ? nexthop_net_exit_rtnl+0x1f/0x260 [ 1126.964892][ T12] ops_undo_list+0x2ce/0x8f0 [ 1126.964893][ T12] ? lockdep_hardirqs_on+0x8c/0x130 [ 1126.964896][ T12] ? rtnl_net_dumpid_one+0x2d0/0x2d0 [ 1126.964897][ T12] ? __lock_release.isra.0+0x6b/0x1a0 [ 1126.964898][ T12] ? idr_destroy+0x121/0x250 [ 1126.964902][ T12] cleanup_net+0x431/0x890 [ 1126.964903][ T12] ? net_passive_dec+0x1c0/0x1c0 [ 1126.964904][ T12] ? process_one_work+0xdb7/0x1410 [ 1126.964906][ T12] ? lock_acquire+0x134/0x160 [ 1126.964907][ T12] ? rcu_is_watching+0x15/0xd0 [ 1126.964909][ T12] process_one_work+0xdf8/0x1410 [ 1126.964912][ T12] ? pwq_dec_nr_in_flight+0x710/0x710 [ 1126.964913][ T12] ? lock_acquire.part.0+0xbc/0x260 [ 1126.964916][ T12] worker_thread+0x4f1/0xd60 [ 1126.964919][ T12] ? rescuer_thread+0x1320/0x1320 [ 1126.964920][ T12] kthread+0x367/0x460 [ 1126.964921][ T12] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 1126.964924][ T12] ? kthread_affine_node+0x330/0x330 [ 1126.964926][ T12] ret_from_fork+0x474/0x6b0 [ 1126.964927][ T12] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 1126.964929][ T12] ? __switch_to+0x5a3/0xe00 [ 1126.964931][ T12] ? kthread_affine_node+0x330/0x330 [ 1126.964933][ T12] ret_from_fork_asm+0x11/0x20 [ 1126.964936][ T12]