[ 232.763719][ T1315] ip (1315) used greatest stack depth: 23936 bytes left [ 238.214964][ T1541] Initializing XFRM netlink socket [ 242.006374][ T12] [ 242.006456][ T12] ======================================================== [ 242.006593][ T12] WARNING: possible irq lock inversion dependency detected [ 242.006716][ T12] 7.1.0-rc5-virtme #1 Not tainted [ 242.006799][ T12] -------------------------------------------------------- [ 242.006926][ T12] kworker/u16:0/12 just changed the state of lock: [ 242.007029][ T12] ffffffff9e9b7438 (acaddr_hash_lock){+.+.}-{3:3}, at: __ipv6_dev_ac_dec+0x236/0x5d0 [ 242.007187][ T12] but this lock was taken by another, SOFTIRQ-safe lock in the past: [ 242.007315][ T12] (&ndev->lock){++--}-{3:3} [ 242.007318][ T12] [ 242.007318][ T12] [ 242.007318][ T12] and interrupts could create inverse lock ordering between them. [ 242.007318][ T12] [ 242.007661][ T12] [ 242.007661][ T12] other info that might help us debug this: [ 242.007780][ T12] Possible interrupt unsafe locking scenario: [ 242.007780][ T12] [ 242.007948][ T12] CPU0 CPU1 [ 242.008037][ T12] ---- ---- [ 242.008129][ T12] lock(acaddr_hash_lock); [ 242.008257][ T12] local_irq_disable(); [ 242.008362][ T12] lock(&ndev->lock); [ 242.008466][ T12] lock(acaddr_hash_lock); [ 242.008569][ T12] [ 242.008631][ T12] lock(&ndev->lock); [ 242.008694][ T12] [ 242.008694][ T12] *** DEADLOCK *** [ 242.008694][ T12] [ 242.008814][ T12] 4 locks held by kworker/u16:0/12: [ 242.008942][ T12] #0: ff110000019e9d40 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xd55/0x1410 [ 242.009112][ T12] #1: ffa00000000c7d10 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0xdb7/0x1410 [ 242.009255][ T12] #2: ffffffff9e898268 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xbf/0x940 [ 242.009442][ T12] #3: ffffffff9e8b4040 (rtnl_mutex){+.+.}-{4:4}, at: default_device_exit_batch+0x9a/0x600 [ 242.009609][ T12] [ 242.009609][ T12] the shortest dependencies between 2nd lock and 1st lock: [ 242.009748][ T12] -> (&ndev->lock){++--}-{3:3} { [ 242.009832][ T12] HARDIRQ-ON-W at: [ 242.009894][ T12] __lock_acquire+0x378/0xc10 [ 242.009996][ T12] lock_acquire.part.0+0xbc/0x260 [ 242.010100][ T12] _raw_write_lock_bh+0x38/0x50 [ 242.010205][ T12] addrconf_permanent_addr+0x108/0x9c0 [ 242.010326][ T12] addrconf_notify+0x151/0xf30 [ 242.010428][ T12] notifier_call_chain+0xb0/0x320 [ 242.010531][ T12] __dev_notify_flags+0xde/0x280 [ 242.010634][ T12] netif_change_flags+0xfe/0x190 [ 242.010738][ T12] do_setlink.isra.0+0x1d25/0x2a60 [ 242.010839][ T12] rtnl_newlink+0x8d1/0xee0 [ 242.010942][ T12] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 242.011090][ T12] netlink_rcv_skb+0x14e/0x3a0 [ 242.011194][ T12] netlink_unicast+0x486/0x750 [ 242.011298][ T12] netlink_sendmsg+0x735/0xc60 [ 242.011443][ T12] ____sys_sendmsg+0x419/0x850 [ 242.011546][ T12] ___sys_sendmsg+0x14e/0x1d0 [ 242.011650][ T12] __sys_sendmsg+0x145/0x1f0 [ 242.011794][ T12] do_syscall_64+0x117/0x590 [ 242.011896][ T12] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 242.012022][ T12] HARDIRQ-ON-R at: [ 242.012131][ T12] __lock_acquire+0x378/0xc10 [ 242.012234][ T12] lock_acquire.part.0+0xbc/0x260 [ 242.012334][ T12] _raw_read_lock_bh+0x44/0x80 [ 242.012437][ T12] inet6_fill_ifla6_attrs+0x1c9c/0x23e0 [ 242.012603][ T12] inet6_fill_link_af+0x5c/0xe0 [ 242.012704][ T12] rtnl_fill_ifinfo.isra.0+0x1a45/0x2cd0 [ 242.012869][ T12] rtmsg_ifinfo_build_skb+0x144/0x250 [ 242.012990][ T12] rtmsg_ifinfo_event.part.0+0x2c/0x130 [ 242.013112][ T12] rtmsg_ifinfo+0x5c/0xb0 [ 242.013259][ T12] register_netdevice+0x1526/0x1bc0 [ 242.013361][ T12] register_netdev+0x23/0x40 [ 242.013463][ T12] vti6_init_net+0x280/0x3c0 [ 242.013564][ T12] ops_init+0x187/0x560 [ 242.013665][ T12] register_pernet_operations+0x395/0x8e0 [ 242.013787][ T12] register_pernet_device+0x2c/0x60 [ 242.013894][ T12] vti6_tunnel_init+0x17/0x100 [ 242.014000][ T12] do_one_initcall+0x12b/0x520 [ 242.014108][ T12] kernel_init_freeable+0x596/0x630 [ 242.014211][ T12] kernel_init+0x1e/0x170 [ 242.014311][ T12] ret_from_fork+0x474/0x6b0 [ 242.014415][ T12] ret_from_fork_asm+0x11/0x20 [ 242.014517][ T12] IN-SOFTIRQ-W at: [ 242.014579][ T12] __lock_acquire+0x378/0xc10 [ 242.014682][ T12] lock_acquire.part.0+0xbc/0x260 [ 242.014829][ T12] _raw_write_lock+0x33/0x40 [ 242.014931][ T12] addrconf_rs_timer+0xb0/0x770 [ 242.015035][ T12] call_timer_fn+0x163/0x4f0 [ 242.015141][ T12] __run_timers+0x68f/0xab0 [ 242.015289][ T12] run_timer_softirq+0xf0/0x160 [ 242.015393][ T12] handle_softirqs+0x1d8/0x940 [ 242.015496][ T12] __irq_exit_rcu+0x103/0x1c0 [ 242.015600][ T12] irq_exit_rcu+0xe/0x30 [ 242.015746][ T12] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 242.015868][ T12] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 242.016031][ T12] pv_native_safe_halt+0xf/0x10 [ 242.016134][ T12] default_idle+0x9/0x10 [ 242.016239][ T12] default_idle_call+0x6e/0xb0 [ 242.016341][ T12] cpuidle_idle_call.constprop.0+0x237/0x410 [ 242.016550][ T12] do_idle+0xf5/0x160 [ 242.016651][ T12] cpu_startup_entry+0x53/0x70 [ 242.016771][ T12] rest_init+0x1f7/0x200 [ 242.016873][ T12] start_kernel+0x3ad/0x3b0 [ 242.016976][ T12] x86_64_start_reservations+0x24/0x30 [ 242.017104][ T12] x86_64_start_kernel+0x12b/0x130 [ 242.017206][ T12] common_startup_64+0x13e/0x148 [ 242.017311][ T12] IN-SOFTIRQ-R at: [ 242.017372][ T12] __lock_acquire+0x378/0xc10 [ 242.017474][ T12] lock_acquire.part.0+0xbc/0x260 [ 242.017575][ T12] _raw_read_lock_bh+0x44/0x80 [ 242.017676][ T12] ipv6_get_lladdr+0xa8/0x3f0 [ 242.017776][ T12] addrconf_rs_timer+0x251/0x770 [ 242.017878][ T12] call_timer_fn+0x163/0x4f0 [ 242.018006][ T12] __run_timers+0x68f/0xab0 [ 242.018112][ T12] run_timer_softirq+0xf0/0x160 [ 242.018259][ T12] handle_softirqs+0x1d8/0x940 [ 242.018361][ T12] __irq_exit_rcu+0x103/0x1c0 [ 242.018461][ T12] irq_exit_rcu+0xe/0x30 [ 242.018564][ T12] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 242.018730][ T12] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 242.018854][ T12] pv_native_safe_halt+0xf/0x10 [ 242.018956][ T12] default_idle+0x9/0x10 [ 242.019061][ T12] default_idle_call+0x6e/0xb0 [ 242.019208][ T12] cpuidle_idle_call.constprop.0+0x237/0x410 [ 242.019374][ T12] do_idle+0xf5/0x160 [ 242.019477][ T12] cpu_startup_entry+0x53/0x70 [ 242.019580][ T12] rest_init+0x1f7/0x200 [ 242.019681][ T12] start_kernel+0x3ad/0x3b0 [ 242.019828][ T12] x86_64_start_reservations+0x24/0x30 [ 242.019951][ T12] x86_64_start_kernel+0x12b/0x130 [ 242.020101][ T12] common_startup_64+0x13e/0x148 [ 242.020247][ T12] INITIAL USE at: [ 242.020308][ T12] __lock_acquire+0x378/0xc10 [ 242.020410][ T12] lock_acquire.part.0+0xbc/0x260 [ 242.020559][ T12] _raw_write_lock_bh+0x38/0x50 [ 242.020661][ T12] addrconf_permanent_addr+0x108/0x9c0 [ 242.020825][ T12] addrconf_notify+0x151/0xf30 [ 242.020928][ T12] notifier_call_chain+0xb0/0x320 [ 242.021032][ T12] __dev_notify_flags+0xde/0x280 [ 242.021140][ T12] netif_change_flags+0xfe/0x190 [ 242.021286][ T12] do_setlink.isra.0+0x1d25/0x2a60 [ 242.021385][ T12] rtnl_newlink+0x8d1/0xee0 [ 242.021487][ T12] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 242.021672][ T12] netlink_rcv_skb+0x14e/0x3a0 [ 242.021775][ T12] netlink_unicast+0x486/0x750 [ 242.021876][ T12] netlink_sendmsg+0x735/0xc60 [ 242.021978][ T12] ____sys_sendmsg+0x419/0x850 [ 242.022127][ T12] ___sys_sendmsg+0x14e/0x1d0 [ 242.022231][ T12] __sys_sendmsg+0x145/0x1f0 [ 242.022334][ T12] do_syscall_64+0x117/0x590 [ 242.022436][ T12] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 242.022556][ T12] INITIAL READ USE at: [ 242.022639][ T12] __lock_acquire+0x378/0xc10 [ 242.022825][ T12] lock_acquire.part.0+0xbc/0x260 [ 242.022944][ T12] _raw_read_lock_bh+0x44/0x80 [ 242.023050][ T12] inet6_fill_ifla6_attrs+0x1c9c/0x23e0 [ 242.023257][ T12] inet6_fill_link_af+0x5c/0xe0 [ 242.023359][ T12] rtnl_fill_ifinfo.isra.0+0x1a45/0x2cd0 [ 242.023477][ T12] rtmsg_ifinfo_build_skb+0x144/0x250 [ 242.023599][ T12] rtmsg_ifinfo_event.part.0+0x2c/0x130 [ 242.023722][ T12] rtmsg_ifinfo+0x5c/0xb0 [ 242.023866][ T12] register_netdevice+0x1526/0x1bc0 [ 242.023988][ T12] register_netdev+0x23/0x40 [ 242.024092][ T12] vti6_init_net+0x280/0x3c0 [ 242.024239][ T12] ops_init+0x187/0x560 [ 242.024343][ T12] register_pernet_operations+0x395/0x8e0 [ 242.024465][ T12] register_pernet_device+0x2c/0x60 [ 242.024587][ T12] vti6_tunnel_init+0x17/0x100 [ 242.024686][ T12] do_one_initcall+0x12b/0x520 [ 242.024787][ T12] kernel_init_freeable+0x596/0x630 [ 242.024909][ T12] kernel_init+0x1e/0x170 [ 242.025009][ T12] ret_from_fork+0x474/0x6b0 [ 242.025113][ T12] ret_from_fork_asm+0x11/0x20 [ 242.025217][ T12] } [ 242.025260][ T12] ... key at: [] __key.37+0x0/0x40 [ 242.025384][ T12] ... acquired at: [ 242.025486][ T12] __lock_acquire+0x508/0xc10 [ 242.025614][ T12] lock_acquire.part.0+0xbc/0x260 [ 242.025695][ T12] _raw_spin_lock+0x33/0x40 [ 242.025817][ T12] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 242.025918][ T12] __ipv6_dev_ac_inc+0x57e/0x930 [ 242.025998][ T12] addrconf_join_anycast+0x1bc/0x260 [ 242.026086][ T12] __ipv6_ifa_notify+0x75b/0xad0 [ 242.026211][ T12] addrconf_dad_completed+0x14b/0xe10 [ 242.026291][ T12] addrconf_dad_begin+0x2e1/0x540 [ 242.026373][ T12] addrconf_dad_work+0x170/0x930 [ 242.026456][ T12] process_one_work+0xdf8/0x1410 [ 242.026581][ T12] worker_thread+0x4f1/0xd60 [ 242.026661][ T12] kthread+0x367/0x460 [ 242.026724][ T12] ret_from_fork+0x474/0x6b0 [ 242.026805][ T12] ret_from_fork_asm+0x11/0x20 [ 242.026887][ T12] [ 242.026930][ T12] -> (acaddr_hash_lock){+.+.}-{3:3} { [ 242.027013][ T12] HARDIRQ-ON-W at: [ 242.027077][ T12] __lock_acquire+0x378/0xc10 [ 242.027223][ T12] lock_acquire.part.0+0xbc/0x260 [ 242.027329][ T12] _raw_spin_lock+0x33/0x40 [ 242.027433][ T12] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 242.027601][ T12] __ipv6_dev_ac_inc+0x57e/0x930 [ 242.027703][ T12] addrconf_join_anycast+0x1bc/0x260 [ 242.027848][ T12] __ipv6_ifa_notify+0x75b/0xad0 [ 242.027951][ T12] addrconf_dad_completed+0x14b/0xe10 [ 242.028053][ T12] addrconf_dad_begin+0x2e1/0x540 [ 242.028153][ T12] addrconf_dad_work+0x170/0x930 [ 242.028255][ T12] process_one_work+0xdf8/0x1410 [ 242.028358][ T12] worker_thread+0x4f1/0xd60 [ 242.028461][ T12] kthread+0x367/0x460 [ 242.028586][ T12] ret_from_fork+0x474/0x6b0 [ 242.028689][ T12] ret_from_fork_asm+0x11/0x20 [ 242.028790][ T12] SOFTIRQ-ON-W at: [ 242.028850][ T12] __lock_acquire+0x378/0xc10 [ 242.028998][ T12] lock_acquire.part.0+0xbc/0x260 [ 242.029103][ T12] _raw_spin_lock+0x33/0x40 [ 242.029204][ T12] __ipv6_dev_ac_dec+0x236/0x5d0 [ 242.029349][ T12] addrconf_leave_anycast+0x1bc/0x260 [ 242.029450][ T12] __ipv6_ifa_notify+0x6b4/0xad0 [ 242.029554][ T12] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 242.029699][ T12] addrconf_notify+0x2c8/0xf30 [ 242.029846][ T12] notifier_call_chain+0xb0/0x320 [ 242.029947][ T12] netif_close_many+0x2c9/0x640 [ 242.030100][ T12] unregister_netdevice_many_notify+0x71a/0x1b30 [ 242.030225][ T12] default_device_exit_batch+0x38b/0x600 [ 242.030346][ T12] ops_undo_list+0x2ce/0x8f0 [ 242.030493][ T12] cleanup_net+0x431/0x940 [ 242.030593][ T12] process_one_work+0xdf8/0x1410 [ 242.030696][ T12] worker_thread+0x4f1/0xd60 [ 242.030799][ T12] kthread+0x367/0x460 [ 242.030881][ T12] ret_from_fork+0x474/0x6b0 [ 242.030984][ T12] ret_from_fork_asm+0x11/0x20 [ 242.031090][ T12] INITIAL USE at: [ 242.031151][ T12] __lock_acquire+0x378/0xc10 [ 242.031253][ T12] lock_acquire.part.0+0xbc/0x260 [ 242.031354][ T12] _raw_spin_lock+0x33/0x40 [ 242.031454][ T12] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 242.031574][ T12] __ipv6_dev_ac_inc+0x57e/0x930 [ 242.031676][ T12] addrconf_join_anycast+0x1bc/0x260 [ 242.031779][ T12] __ipv6_ifa_notify+0x75b/0xad0 [ 242.031880][ T12] addrconf_dad_completed+0x14b/0xe10 [ 242.031983][ T12] addrconf_dad_begin+0x2e1/0x540 [ 242.032134][ T12] addrconf_dad_work+0x170/0x930 [ 242.032240][ T12] process_one_work+0xdf8/0x1410 [ 242.032342][ T12] worker_thread+0x4f1/0xd60 [ 242.032445][ T12] kthread+0x367/0x460 [ 242.032569][ T12] ret_from_fork+0x474/0x6b0 [ 242.032673][ T12] ret_from_fork_asm+0x11/0x20 [ 242.032779][ T12] } [ 242.032821][ T12] ... key at: [] acaddr_hash_lock+0x18/0x45a0 [ 242.032945][ T12] ... acquired at: [ 242.033006][ T12] mark_lock+0x1d7/0xa00 [ 242.033092][ T12] mark_usage+0x105/0x170 [ 242.033218][ T12] __lock_acquire+0x378/0xc10 [ 242.033300][ T12] lock_acquire.part.0+0xbc/0x260 [ 242.033382][ T12] _raw_spin_lock+0x33/0x40 [ 242.033464][ T12] __ipv6_dev_ac_dec+0x236/0x5d0 [ 242.033546][ T12] addrconf_leave_anycast+0x1bc/0x260 [ 242.033630][ T12] __ipv6_ifa_notify+0x6b4/0xad0 [ 242.033712][ T12] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 242.033795][ T12] addrconf_notify+0x2c8/0xf30 [ 242.033878][ T12] notifier_call_chain+0xb0/0x320 [ 242.033960][ T12] netif_close_many+0x2c9/0x640 [ 242.034046][ T12] unregister_netdevice_many_notify+0x71a/0x1b30 [ 242.034189][ T12] default_device_exit_batch+0x38b/0x600 [ 242.034291][ T12] ops_undo_list+0x2ce/0x8f0 [ 242.034415][ T12] cleanup_net+0x431/0x940 [ 242.034496][ T12] process_one_work+0xdf8/0x1410 [ 242.034667][ T12] worker_thread+0x4f1/0xd60 [ 242.034749][ T12] kthread+0x367/0x460 [ 242.034812][ T12] ret_from_fork+0x474/0x6b0 [ 242.034980][ T12] ret_from_fork_asm+0x11/0x20 [ 242.035065][ T12] [ 242.035105][ T12] [ 242.035105][ T12] stack backtrace: [ 242.035209][ T12] CPU: 2 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 7.1.0-rc5-virtme #1 PREEMPT(full) [ 242.035212][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 242.035214][ T12] Workqueue: netns cleanup_net [ 242.035217][ T12] Call Trace: [ 242.035219][ T12] [ 242.035221][ T12] dump_stack_lvl+0x6f/0xa0 [ 242.035224][ T12] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 242.035227][ T12] mark_lock_irq+0x989/0x9c0 [ 242.035230][ T12] mark_lock+0x1d7/0xa00 [ 242.035231][ T12] mark_usage+0x105/0x170 [ 242.035233][ T12] __lock_acquire+0x378/0xc10 [ 242.035235][ T12] lock_acquire.part.0+0xbc/0x260 [ 242.035236][ T12] ? __ipv6_dev_ac_dec+0x236/0x5d0 [ 242.035238][ T12] ? rcu_is_watching+0x15/0xd0 [ 242.035241][ T12] ? do_raw_read_unlock+0x70/0x70 [ 242.035243][ T12] ? lock_acquire+0x134/0x160 [ 242.035245][ T12] _raw_spin_lock+0x33/0x40 [ 242.035246][ T12] ? __ipv6_dev_ac_dec+0x236/0x5d0 [ 242.035247][ T12] __ipv6_dev_ac_dec+0x236/0x5d0 [ 242.035249][ T12] addrconf_leave_anycast+0x1bc/0x260 [ 242.035251][ T12] ? inet6_dump_ifinfo+0x6e0/0x6e0 [ 242.035253][ T12] ? __ipv6_isatap_ifid+0x210/0x210 [ 242.035255][ T12] ? nlmsg_notify+0x62/0x250 [ 242.035257][ T12] __ipv6_ifa_notify+0x6b4/0xad0 [ 242.035259][ T12] ? cleanup_prefix_route+0x550/0x550 [ 242.035261][ T12] ? find_held_lock+0x2b/0x80 [ 242.035263][ T12] ? __lock_release.isra.0+0x6b/0x1a0 [ 242.035264][ T12] ? __rwlock_init+0x150/0x150 [ 242.035265][ T12] ? mark_held_locks+0x40/0x70 [ 242.035267][ T12] ? addrconf_ifdown.isra.0+0xa70/0x15f0 [ 242.035269][ T12] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 242.035271][ T12] ? __timer_delete_sync+0xdb/0x130 [ 242.035274][ T12] ? addrconf_dad_run+0x1b0/0x1b0 [ 242.035276][ T12] ? netkit_xmit+0x14c0/0x14c0 [ 242.035280][ T12] addrconf_notify+0x2c8/0xf30 [ 242.035281][ T12] ? team_port_get_rtnl+0x65/0xc0 [ 242.035284][ T12] notifier_call_chain+0xb0/0x320 [ 242.035286][ T12] netif_close_many+0x2c9/0x640 [ 242.035287][ T12] ? lock_acquire+0x134/0x160 [ 242.035288][ T12] ? rcu_is_watching+0x15/0xd0 [ 242.035290][ T12] ? rcu_is_watching+0x15/0xd0 [ 242.035291][ T12] ? __dev_close_many+0x670/0x670 [ 242.035293][ T12] ? netif_close_many_and_unlock+0x22/0x2c0 [ 242.035295][ T12] unregister_netdevice_many_notify+0x71a/0x1b30 [ 242.035297][ T12] ? mutex_is_locked+0x1c/0x50 [ 242.035299][ T12] ? unregister_netdevice_queued+0x80/0x80 [ 242.035301][ T12] ? mutex_is_locked+0x1c/0x50 [ 242.035303][ T12] ? rtnl_is_locked+0x15/0x20 [ 242.035305][ T12] ? unregister_netdevice_queue+0x6a/0x470 [ 242.035306][ T12] ? unregister_netdevice_many+0x20/0x20 [ 242.035308][ T12] default_device_exit_batch+0x38b/0x600 [ 242.035310][ T12] ? unregister_netdev+0x60/0x60 [ 242.035311][ T12] ? perf_trace_sched_switch+0x7d0/0x7d0 [ 242.035314][ T12] ? fou_exit_net+0x30/0x110 [ 242.035317][ T12] ops_undo_list+0x2ce/0x8f0 [ 242.035319][ T12] ? lockdep_hardirqs_on+0x8c/0x130 [ 242.035321][ T12] ? netns_install+0x2a0/0x2a0 [ 242.035322][ T12] ? __lock_release.isra.0+0x6b/0x1a0 [ 242.035324][ T12] ? idr_destroy+0x121/0x250 [ 242.035327][ T12] cleanup_net+0x431/0x940 [ 242.035329][ T12] ? net_passive_dec+0x1c0/0x1c0 [ 242.035330][ T12] ? process_one_work+0xdb7/0x1410 [ 242.035332][ T12] ? lock_acquire+0x134/0x160 [ 242.035333][ T12] ? rcu_is_watching+0x15/0xd0 [ 242.035335][ T12] process_one_work+0xdf8/0x1410 [ 242.035338][ T12] ? pwq_dec_nr_in_flight+0x710/0x710 [ 242.035340][ T12] ? lock_acquire.part.0+0xbc/0x260 [ 242.035342][ T12] worker_thread+0x4f1/0xd60 [ 242.035345][ T12] ? rescuer_thread+0x1320/0x1320 [ 242.035347][ T12] kthread+0x367/0x460 [ 242.035348][ T12] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 242.035351][ T12] ? kthread_affine_node+0x330/0x330 [ 242.035353][ T12] ret_from_fork+0x474/0x6b0 [ 242.035355][ T12] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 242.035357][ T12] ? __switch_to+0x5a3/0xe00 [ 242.035359][ T12] ? kthread_affine_node+0x330/0x330 [ 242.035360][ T12] ret_from_fork_asm+0x11/0x20 [ 242.035364][ T12]