[ 17.409679][ T659] iperf3 (659) used greatest stack depth: 24080 bytes left [ 39.987767][ T1879] grep (1879) used greatest stack depth: 23560 bytes left [ 71.990080][ C0] clocksource: Watchdog remote CPU 2 read timed out [ 310.530996][ T69] [ 310.531081][ T69] ======================================================== [ 310.531207][ T69] WARNING: possible irq lock inversion dependency detected [ 310.531330][ T69] 7.1.0-rc5-virtme #1 Not tainted [ 310.531409][ T69] -------------------------------------------------------- [ 310.531525][ T69] kworker/u16:1/69 just changed the state of lock: [ 310.531627][ T69] ffffffffb83b7438 (acaddr_hash_lock){+.+.}-{3:3}, at: __ipv6_dev_ac_dec+0x236/0x5d0 [ 310.531769][ T69] but this lock was taken by another, SOFTIRQ-safe lock in the past: [ 310.531881][ T69] (&ndev->lock){++--}-{3:3} [ 310.531883][ T69] [ 310.531883][ T69] [ 310.531883][ T69] and interrupts could create inverse lock ordering between them. [ 310.531883][ T69] [ 310.532165][ T69] [ 310.532165][ T69] other info that might help us debug this: [ 310.532287][ T69] Possible interrupt unsafe locking scenario: [ 310.532287][ T69] [ 310.532410][ T69] CPU0 CPU1 [ 310.532490][ T69] ---- ---- [ 310.532576][ T69] lock(acaddr_hash_lock); [ 310.532659][ T69] local_irq_disable(); [ 310.532763][ T69] lock(&ndev->lock); [ 310.532869][ T69] lock(acaddr_hash_lock); [ 310.532967][ T69] [ 310.533024][ T69] lock(&ndev->lock); [ 310.533086][ T69] [ 310.533086][ T69] *** DEADLOCK *** [ 310.533086][ T69] [ 310.533206][ T69] 4 locks held by kworker/u16:1/69: [ 310.533284][ T69] #0: ff110000019e9d40 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xd55/0x1410 [ 310.533448][ T69] #1: ffa00000004a7d10 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0xdb7/0x1410 [ 310.533590][ T69] #2: ffffffffb8298268 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xbf/0x940 [ 310.533733][ T69] #3: ffffffffb82b4040 (rtnl_mutex){+.+.}-{4:4}, at: default_device_exit_batch+0x9a/0x600 [ 310.533894][ T69] [ 310.533894][ T69] the shortest dependencies between 2nd lock and 1st lock: [ 310.534038][ T69] -> (&ndev->lock){++--}-{3:3} { [ 310.534125][ T69] HARDIRQ-ON-W at: [ 310.534189][ T69] __lock_acquire+0x378/0xc10 [ 310.534298][ T69] lock_acquire.part.0+0xbc/0x260 [ 310.534400][ T69] _raw_write_lock_bh+0x38/0x50 [ 310.534506][ T69] addrconf_permanent_addr+0x108/0x9c0 [ 310.534633][ T69] addrconf_notify+0x151/0xf30 [ 310.534732][ T69] notifier_call_chain+0xb0/0x320 [ 310.534832][ T69] __dev_notify_flags+0xde/0x280 [ 310.534935][ T69] netif_change_flags+0xfe/0x190 [ 310.535040][ T69] do_setlink.isra.0+0x1d25/0x2a60 [ 310.535140][ T69] rtnl_newlink+0x8d1/0xee0 [ 310.535238][ T69] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 310.535340][ T69] netlink_rcv_skb+0x14e/0x3a0 [ 310.535445][ T69] netlink_unicast+0x486/0x750 [ 310.535550][ T69] netlink_sendmsg+0x735/0xc60 [ 310.535654][ T69] ____sys_sendmsg+0x419/0x850 [ 310.535758][ T69] ___sys_sendmsg+0x14e/0x1d0 [ 310.535857][ T69] __sys_sendmsg+0x145/0x1f0 [ 310.535957][ T69] do_syscall_64+0x117/0x590 [ 310.536057][ T69] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 310.536180][ T69] HARDIRQ-ON-R at: [ 310.536245][ T69] __lock_acquire+0x378/0xc10 [ 310.536342][ T69] lock_acquire.part.0+0xbc/0x260 [ 310.536446][ T69] _raw_read_lock_bh+0x44/0x80 [ 310.536546][ T69] inet6_fill_ifla6_attrs+0x1c9c/0x23e0 [ 310.536667][ T69] inet6_fill_link_af+0x5c/0xe0 [ 310.536768][ T69] rtnl_fill_ifinfo.isra.0+0x1a45/0x2cd0 [ 310.536890][ T69] rtmsg_ifinfo_build_skb+0x144/0x250 [ 310.537015][ T69] rtmsg_ifinfo_event.part.0+0x2c/0x130 [ 310.537131][ T69] rtmsg_ifinfo+0x5c/0xb0 [ 310.537232][ T69] register_netdevice+0x1526/0x1bc0 [ 310.537335][ T69] register_netdev+0x23/0x40 [ 310.537434][ T69] vti6_init_net+0x280/0x3c0 [ 310.537541][ T69] ops_init+0x187/0x560 [ 310.537647][ T69] register_pernet_operations+0x395/0x8e0 [ 310.537772][ T69] register_pernet_device+0x2c/0x60 [ 310.537877][ T69] vti6_tunnel_init+0x17/0x100 [ 310.537980][ T69] do_one_initcall+0x12b/0x520 [ 310.538080][ T69] kernel_init_freeable+0x596/0x630 [ 310.538181][ T69] kernel_init+0x1e/0x170 [ 310.538275][ T69] ret_from_fork+0x474/0x6b0 [ 310.538372][ T69] ret_from_fork_asm+0x11/0x20 [ 310.538463][ T69] IN-SOFTIRQ-W at: [ 310.538518][ T69] __lock_acquire+0x378/0xc10 [ 310.538616][ T69] lock_acquire.part.0+0xbc/0x260 [ 310.538705][ T69] _raw_write_lock+0x33/0x40 [ 310.538798][ T69] addrconf_rs_timer+0xb0/0x770 [ 310.538889][ T69] call_timer_fn+0x163/0x4f0 [ 310.538987][ T69] __run_timers+0x68f/0xab0 [ 310.539083][ T69] run_timer_softirq+0xf0/0x160 [ 310.539175][ T69] handle_softirqs+0x1d8/0x940 [ 310.539270][ T69] __irq_exit_rcu+0x103/0x1c0 [ 310.539364][ T69] irq_exit_rcu+0xe/0x30 [ 310.539457][ T69] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 310.539564][ T69] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 310.539684][ T69] lock_acquire.part.0+0xfa/0x260 [ 310.539780][ T69] copy_tree+0x2ab/0xd10 [ 310.539877][ T69] copy_mnt_ns+0x291/0xf30 [ 310.539973][ T69] create_new_namespaces+0xe6/0xa10 [ 310.540065][ T69] unshare_nsproxy_namespaces+0xa5/0x1d0 [ 310.540179][ T69] ksys_unshare+0x353/0x880 [ 310.540270][ T69] __x64_sys_unshare+0x34/0x50 [ 310.540363][ T69] do_syscall_64+0x117/0x590 [ 310.540455][ T69] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 310.540568][ T69] IN-SOFTIRQ-R at: [ 310.540630][ T69] __lock_acquire+0x378/0xc10 [ 310.540724][ T69] lock_acquire.part.0+0xbc/0x260 [ 310.540820][ T69] _raw_read_lock_bh+0x44/0x80 [ 310.540913][ T69] ipv6_get_lladdr+0xa8/0x3f0 [ 310.541009][ T69] addrconf_rs_timer+0x251/0x770 [ 310.541100][ T69] call_timer_fn+0x163/0x4f0 [ 310.541192][ T69] __run_timers+0x68f/0xab0 [ 310.541285][ T69] run_timer_softirq+0xf0/0x160 [ 310.541378][ T69] handle_softirqs+0x1d8/0x940 [ 310.541472][ T69] __irq_exit_rcu+0x103/0x1c0 [ 310.541569][ T69] irq_exit_rcu+0xe/0x30 [ 310.541670][ T69] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 310.541785][ T69] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 310.541892][ T69] lock_acquire.part.0+0xfa/0x260 [ 310.541984][ T69] copy_tree+0x2ab/0xd10 [ 310.542074][ T69] copy_mnt_ns+0x291/0xf30 [ 310.542167][ T69] create_new_namespaces+0xe6/0xa10 [ 310.542257][ T69] unshare_nsproxy_namespaces+0xa5/0x1d0 [ 310.542367][ T69] ksys_unshare+0x353/0x880 [ 310.542459][ T69] __x64_sys_unshare+0x34/0x50 [ 310.542547][ T69] do_syscall_64+0x117/0x590 [ 310.542642][ T69] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 310.542753][ T69] INITIAL USE at: [ 310.542808][ T69] __lock_acquire+0x378/0xc10 [ 310.542903][ T69] lock_acquire.part.0+0xbc/0x260 [ 310.542998][ T69] _raw_write_lock_bh+0x38/0x50 [ 310.543088][ T69] addrconf_permanent_addr+0x108/0x9c0 [ 310.543196][ T69] addrconf_notify+0x151/0xf30 [ 310.543286][ T69] notifier_call_chain+0xb0/0x320 [ 310.543378][ T69] __dev_notify_flags+0xde/0x280 [ 310.543472][ T69] netif_change_flags+0xfe/0x190 [ 310.543562][ T69] do_setlink.isra.0+0x1d25/0x2a60 [ 310.543659][ T69] rtnl_newlink+0x8d1/0xee0 [ 310.543750][ T69] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 310.543845][ T69] netlink_rcv_skb+0x14e/0x3a0 [ 310.543934][ T69] netlink_unicast+0x486/0x750 [ 310.544025][ T69] netlink_sendmsg+0x735/0xc60 [ 310.544115][ T69] ____sys_sendmsg+0x419/0x850 [ 310.544204][ T69] ___sys_sendmsg+0x14e/0x1d0 [ 310.544297][ T69] __sys_sendmsg+0x145/0x1f0 [ 310.544388][ T69] do_syscall_64+0x117/0x590 [ 310.544477][ T69] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 310.544595][ T69] INITIAL READ USE at: [ 310.544667][ T69] __lock_acquire+0x378/0xc10 [ 310.544758][ T69] lock_acquire.part.0+0xbc/0x260 [ 310.544868][ T69] _raw_read_lock_bh+0x44/0x80 [ 310.545003][ T69] inet6_fill_ifla6_attrs+0x1c9c/0x23e0 [ 310.545110][ T69] inet6_fill_link_af+0x5c/0xe0 [ 310.545200][ T69] rtnl_fill_ifinfo.isra.0+0x1a45/0x2cd0 [ 310.545358][ T69] rtmsg_ifinfo_build_skb+0x144/0x250 [ 310.545467][ T69] rtmsg_ifinfo_event.part.0+0x2c/0x130 [ 310.545625][ T69] rtmsg_ifinfo+0x5c/0xb0 [ 310.545716][ T69] register_netdevice+0x1526/0x1bc0 [ 310.545826][ T69] register_netdev+0x23/0x40 [ 310.545960][ T69] vti6_init_net+0x280/0x3c0 [ 310.546053][ T69] ops_init+0x187/0x560 [ 310.546142][ T69] register_pernet_operations+0x395/0x8e0 [ 310.546294][ T69] register_pernet_device+0x2c/0x60 [ 310.546405][ T69] vti6_tunnel_init+0x17/0x100 [ 310.546498][ T69] do_one_initcall+0x12b/0x520 [ 310.546641][ T69] kernel_init_freeable+0x596/0x630 [ 310.546751][ T69] kernel_init+0x1e/0x170 [ 310.546844][ T69] ret_from_fork+0x474/0x6b0 [ 310.546977][ T69] ret_from_fork_asm+0x11/0x20 [ 310.547067][ T69] } [ 310.547105][ T69] ... key at: [] __key.37+0x0/0x40 [ 310.547219][ T69] ... acquired at: [ 310.547318][ T69] __lock_acquire+0x508/0xc10 [ 310.547394][ T69] lock_acquire.part.0+0xbc/0x260 [ 310.547465][ T69] _raw_spin_lock+0x33/0x40 [ 310.547537][ T69] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 310.547632][ T69] __ipv6_dev_ac_inc+0x57e/0x930 [ 310.547706][ T69] addrconf_join_anycast+0x1bc/0x260 [ 310.547777][ T69] __ipv6_ifa_notify+0x75b/0xad0 [ 310.547849][ T69] addrconf_dad_completed+0x14b/0xe10 [ 310.547921][ T69] addrconf_dad_work+0x3c1/0x930 [ 310.547993][ T69] process_one_work+0xdf8/0x1410 [ 310.548066][ T69] worker_thread+0x4f1/0xd60 [ 310.548138][ T69] kthread+0x367/0x460 [ 310.548194][ T69] ret_from_fork+0x474/0x6b0 [ 310.548267][ T69] ret_from_fork_asm+0x11/0x20 [ 310.548338][ T69] [ 310.548376][ T69] -> (acaddr_hash_lock){+.+.}-{3:3} { [ 310.548451][ T69] HARDIRQ-ON-W at: [ 310.548506][ T69] __lock_acquire+0x378/0xc10 [ 310.548604][ T69] lock_acquire.part.0+0xbc/0x260 [ 310.548697][ T69] _raw_spin_lock+0x33/0x40 [ 310.548789][ T69] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 310.548901][ T69] __ipv6_dev_ac_inc+0x57e/0x930 [ 310.548997][ T69] addrconf_join_anycast+0x1bc/0x260 [ 310.549087][ T69] __ipv6_ifa_notify+0x75b/0xad0 [ 310.549180][ T69] addrconf_dad_completed+0x14b/0xe10 [ 310.549273][ T69] addrconf_dad_work+0x3c1/0x930 [ 310.549363][ T69] process_one_work+0xdf8/0x1410 [ 310.549454][ T69] worker_thread+0x4f1/0xd60 [ 310.549545][ T69] kthread+0x367/0x460 [ 310.549621][ T69] ret_from_fork+0x474/0x6b0 [ 310.549716][ T69] ret_from_fork_asm+0x11/0x20 [ 310.549809][ T69] SOFTIRQ-ON-W at: [ 310.549864][ T69] __lock_acquire+0x378/0xc10 [ 310.549956][ T69] lock_acquire.part.0+0xbc/0x260 [ 310.550047][ T69] _raw_spin_lock+0x33/0x40 [ 310.550137][ T69] __ipv6_dev_ac_dec+0x236/0x5d0 [ 310.550232][ T69] addrconf_leave_anycast+0x1bc/0x260 [ 310.550326][ T69] __ipv6_ifa_notify+0x6b4/0xad0 [ 310.550420][ T69] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 310.550514][ T69] addrconf_notify+0x2c8/0xf30 [ 310.550833][ T69] notifier_call_chain+0xb0/0x320 [ 310.550925][ T69] netif_close_many+0x2c9/0x640 [ 310.551017][ T69] unregister_netdevice_many_notify+0x71a/0x1b30 [ 310.551126][ T69] default_device_exit_batch+0x38b/0x600 [ 310.551233][ T69] ops_undo_list+0x2ce/0x8f0 [ 310.551327][ T69] cleanup_net+0x431/0x940 [ 310.551463][ T69] process_one_work+0xdf8/0x1410 [ 310.551557][ T69] worker_thread+0x4f1/0xd60 [ 310.551652][ T69] kthread+0x367/0x460 [ 310.551770][ T69] ret_from_fork+0x474/0x6b0 [ 310.551859][ T69] ret_from_fork_asm+0x11/0x20 [ 310.551950][ T69] INITIAL USE at: [ 310.552003][ T69] __lock_acquire+0x378/0xc10 [ 310.552139][ T69] lock_acquire.part.0+0xbc/0x260 [ 310.552228][ T69] _raw_spin_lock+0x33/0x40 [ 310.552317][ T69] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 310.552473][ T69] __ipv6_dev_ac_inc+0x57e/0x930 [ 310.552565][ T69] addrconf_join_anycast+0x1bc/0x260 [ 310.552664][ T69] __ipv6_ifa_notify+0x75b/0xad0 [ 310.552798][ T69] addrconf_dad_completed+0x14b/0xe10 [ 310.552891][ T69] addrconf_dad_work+0x3c1/0x930 [ 310.552983][ T69] process_one_work+0xdf8/0x1410 [ 310.553120][ T69] worker_thread+0x4f1/0xd60 [ 310.553213][ T69] kthread+0x367/0x460 [ 310.553286][ T69] ret_from_fork+0x474/0x6b0 [ 310.553379][ T69] ret_from_fork_asm+0x11/0x20 [ 310.553515][ T69] } [ 310.553551][ T69] ... key at: [] acaddr_hash_lock+0x18/0x45a0 [ 310.553668][ T69] ... acquired at: [ 310.553721][ T69] mark_lock+0x1d7/0xa00 [ 310.553845][ T69] mark_usage+0x105/0x170 [ 310.553917][ T69] __lock_acquire+0x378/0xc10 [ 310.553989][ T69] lock_acquire.part.0+0xbc/0x260 [ 310.554061][ T69] _raw_spin_lock+0x33/0x40 [ 310.554178][ T69] __ipv6_dev_ac_dec+0x236/0x5d0 [ 310.554250][ T69] addrconf_leave_anycast+0x1bc/0x260 [ 310.554322][ T69] __ipv6_ifa_notify+0x6b4/0xad0 [ 310.554396][ T69] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 310.554512][ T69] addrconf_notify+0x2c8/0xf30 [ 310.554588][ T69] notifier_call_chain+0xb0/0x320 [ 310.554660][ T69] netif_close_many+0x2c9/0x640 [ 310.554734][ T69] unregister_netdevice_many_notify+0x71a/0x1b30 [ 310.554867][ T69] default_device_exit_batch+0x38b/0x600 [ 310.554958][ T69] ops_undo_list+0x2ce/0x8f0 [ 310.555035][ T69] cleanup_net+0x431/0x940 [ 310.555154][ T69] process_one_work+0xdf8/0x1410 [ 310.555225][ T69] worker_thread+0x4f1/0xd60 [ 310.555298][ T69] kthread+0x367/0x460 [ 310.555352][ T69] ret_from_fork+0x474/0x6b0 [ 310.555424][ T69] ret_from_fork_asm+0x11/0x20 [ 310.555543][ T69] [ 310.555582][ T69] [ 310.555582][ T69] stack backtrace: [ 310.555678][ T69] CPU: 3 UID: 0 PID: 69 Comm: kworker/u16:1 Not tainted 7.1.0-rc5-virtme #1 PREEMPT(full) [ 310.555681][ T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 310.555684][ T69] Workqueue: netns cleanup_net [ 310.555687][ T69] Call Trace: [ 310.555689][ T69] [ 310.555691][ T69] dump_stack_lvl+0x6f/0xa0 [ 310.555694][ T69] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 310.555697][ T69] mark_lock_irq+0x989/0x9c0 [ 310.555700][ T69] mark_lock+0x1d7/0xa00 [ 310.555702][ T69] mark_usage+0x105/0x170 [ 310.555703][ T69] __lock_acquire+0x378/0xc10 [ 310.555705][ T69] lock_acquire.part.0+0xbc/0x260 [ 310.555707][ T69] ? __ipv6_dev_ac_dec+0x236/0x5d0 [ 310.555708][ T69] ? rcu_is_watching+0x15/0xd0 [ 310.555711][ T69] ? do_raw_read_unlock+0x70/0x70 [ 310.555713][ T69] ? lock_acquire+0x134/0x160 [ 310.555715][ T69] _raw_spin_lock+0x33/0x40 [ 310.555716][ T69] ? __ipv6_dev_ac_dec+0x236/0x5d0 [ 310.555718][ T69] __ipv6_dev_ac_dec+0x236/0x5d0 [ 310.555720][ T69] addrconf_leave_anycast+0x1bc/0x260 [ 310.555722][ T69] ? inet6_dump_ifinfo+0x6e0/0x6e0 [ 310.555724][ T69] ? __ipv6_isatap_ifid+0x210/0x210 [ 310.555726][ T69] ? nlmsg_notify+0x62/0x250 [ 310.555728][ T69] __ipv6_ifa_notify+0x6b4/0xad0 [ 310.555730][ T69] ? cleanup_prefix_route+0x550/0x550 [ 310.555732][ T69] ? find_held_lock+0x2b/0x80 [ 310.555734][ T69] ? __lock_release.isra.0+0x6b/0x1a0 [ 310.555735][ T69] ? __rwlock_init+0x150/0x150 [ 310.555737][ T69] ? mark_held_locks+0x40/0x70 [ 310.555739][ T69] ? addrconf_ifdown.isra.0+0xa70/0x15f0 [ 310.555740][ T69] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 310.555742][ T69] ? __timer_delete_sync+0xdb/0x130 [ 310.555745][ T69] ? addrconf_dad_run+0x1b0/0x1b0 [ 310.555747][ T69] ? netkit_xmit+0x14c0/0x14c0 [ 310.555751][ T69] ? mark_held_locks+0x40/0x70 [ 310.555753][ T69] addrconf_notify+0x2c8/0xf30 [ 310.555754][ T69] ? team_port_get_rtnl+0x65/0xc0 [ 310.555757][ T69] notifier_call_chain+0xb0/0x320 [ 310.555759][ T69] netif_close_many+0x2c9/0x640 [ 310.555760][ T69] ? lock_acquire+0x134/0x160 [ 310.555762][ T69] ? rcu_is_watching+0x15/0xd0 [ 310.555763][ T69] ? rcu_is_watching+0x15/0xd0 [ 310.555765][ T69] ? __dev_close_many+0x670/0x670 [ 310.555767][ T69] ? netif_close_many_and_unlock+0x22/0x2c0 [ 310.555769][ T69] unregister_netdevice_many_notify+0x71a/0x1b30 [ 310.555771][ T69] ? mutex_is_locked+0x1c/0x50 [ 310.555773][ T69] ? unregister_netdevice_queued+0x80/0x80 [ 310.555775][ T69] ? mutex_is_locked+0x1c/0x50 [ 310.555777][ T69] ? rtnl_is_locked+0x15/0x20 [ 310.555779][ T69] ? unregister_netdevice_queue+0x6a/0x470 [ 310.555780][ T69] ? unregister_netdevice_many+0x20/0x20 [ 310.555782][ T69] default_device_exit_batch+0x38b/0x600 [ 310.555784][ T69] ? unregister_netdev+0x60/0x60 [ 310.555785][ T69] ? perf_trace_sched_switch+0x7d0/0x7d0 [ 310.555789][ T69] ? fou_exit_net+0x30/0x110 [ 310.555792][ T69] ops_undo_list+0x2ce/0x8f0 [ 310.555794][ T69] ? lockdep_hardirqs_on+0x8c/0x130 [ 310.555796][ T69] ? netns_install+0x2a0/0x2a0 [ 310.555797][ T69] ? __lock_release.isra.0+0x6b/0x1a0 [ 310.555799][ T69] ? idr_destroy+0x121/0x250 [ 310.555802][ T69] cleanup_net+0x431/0x940 [ 310.555803][ T69] ? net_passive_dec+0x1c0/0x1c0 [ 310.555805][ T69] ? process_one_work+0xdb7/0x1410 [ 310.555807][ T69] ? lock_acquire+0x134/0x160 [ 310.555808][ T69] ? rcu_is_watching+0x15/0xd0 [ 310.555810][ T69] process_one_work+0xdf8/0x1410 [ 310.555813][ T69] ? pwq_dec_nr_in_flight+0x710/0x710 [ 310.555815][ T69] ? lock_acquire.part.0+0xbc/0x260 [ 310.555817][ T69] worker_thread+0x4f1/0xd60 [ 310.555820][ T69] ? rescuer_thread+0x1320/0x1320 [ 310.555821][ T69] ? __kthread_parkme+0xbd/0x210 [ 310.555823][ T69] ? rescuer_thread+0x1320/0x1320 [ 310.555825][ T69] kthread+0x367/0x460 [ 310.555826][ T69] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 310.555829][ T69] ? kthread_affine_node+0x330/0x330 [ 310.555831][ T69] ret_from_fork+0x474/0x6b0 [ 310.555833][ T69] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 310.555835][ T69] ? __switch_to+0x5a3/0xe00 [ 310.555837][ T69] ? kthread_affine_node+0x330/0x330 [ 310.555839][ T69] ret_from_fork_asm+0x11/0x20 [ 310.555842][ T69]