[ 13.741509][ T220] ip (220) used greatest stack depth: 24000 bytes left [ 15.876140][ T268] Initializing XFRM netlink socket [ 46.999985][ T962] ip (962) used greatest stack depth: 23736 bytes left [ 48.818104][ T1001] ip (1001) used greatest stack depth: 23496 bytes left [ 292.128202][ T68] [ 292.128293][ T68] ======================================================== [ 292.128430][ T68] WARNING: possible irq lock inversion dependency detected [ 292.128552][ T68] 7.1.0-rc5-virtme #1 Not tainted [ 292.128635][ T68] -------------------------------------------------------- [ 292.128760][ T68] kworker/u16:1/68 just changed the state of lock: [ 292.128869][ T68] ffffffff89db7438 (acaddr_hash_lock){+.+.}-{3:3}, at: __ipv6_dev_ac_dec+0x236/0x5d0 [ 292.129026][ T68] but this lock was taken by another, SOFTIRQ-safe lock in the past: [ 292.129145][ T68] (&ndev->lock){++--}-{3:3} [ 292.129147][ T68] [ 292.129147][ T68] [ 292.129147][ T68] and interrupts could create inverse lock ordering between them. [ 292.129147][ T68] [ 292.129442][ T68] [ 292.129442][ T68] other info that might help us debug this: [ 292.129564][ T68] Possible interrupt unsafe locking scenario: [ 292.129564][ T68] [ 292.129686][ T68] CPU0 CPU1 [ 292.129772][ T68] ---- ---- [ 292.129855][ T68] lock(acaddr_hash_lock); [ 292.129940][ T68] local_irq_disable(); [ 292.130048][ T68] lock(&ndev->lock); [ 292.130151][ T68] lock(acaddr_hash_lock); [ 292.130296][ T68] [ 292.130357][ T68] lock(&ndev->lock); [ 292.130424][ T68] [ 292.130424][ T68] *** DEADLOCK *** [ 292.130424][ T68] [ 292.130548][ T68] 4 locks held by kworker/u16:1/68: [ 292.130628][ T68] #0: ff110000019e9d40 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xd55/0x1410 [ 292.130796][ T68] #1: ffa0000000497d10 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0xdb7/0x1410 [ 292.131035][ T68] #2: ffffffff89c98268 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xbf/0x940 [ 292.131194][ T68] #3: ffffffff89cb4040 (rtnl_mutex){+.+.}-{4:4}, at: default_device_exit_batch+0x9a/0x600 [ 292.131360][ T68] [ 292.131360][ T68] the shortest dependencies between 2nd lock and 1st lock: [ 292.131554][ T68] -> (&ndev->lock){++--}-{3:3} { [ 292.131639][ T68] HARDIRQ-ON-W at: [ 292.131704][ T68] __lock_acquire+0x378/0xc10 [ 292.131854][ T68] lock_acquire.part.0+0xbc/0x260 [ 292.131961][ T68] _raw_write_lock_bh+0x38/0x50 [ 292.132064][ T68] addrconf_permanent_addr+0x108/0x9c0 [ 292.132230][ T68] addrconf_notify+0x151/0xf30 [ 292.132331][ T68] notifier_call_chain+0xb0/0x320 [ 292.132437][ T68] __dev_notify_flags+0xde/0x280 [ 292.132582][ T68] netif_change_flags+0xfe/0x190 [ 292.132684][ T68] do_setlink.isra.0+0x1d25/0x2a60 [ 292.132792][ T68] rtnl_newlink+0x8d1/0xee0 [ 292.132942][ T68] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 292.133051][ T68] netlink_rcv_skb+0x14e/0x3a0 [ 292.133156][ T68] netlink_unicast+0x486/0x750 [ 292.133255][ T68] netlink_sendmsg+0x735/0xc60 [ 292.133399][ T68] ____sys_sendmsg+0x419/0x850 [ 292.133508][ T68] ___sys_sendmsg+0x14e/0x1d0 [ 292.133609][ T68] __sys_sendmsg+0x145/0x1f0 [ 292.133754][ T68] do_syscall_64+0x117/0x590 [ 292.133853][ T68] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 292.133976][ T68] HARDIRQ-ON-R at: [ 292.134079][ T68] __lock_acquire+0x378/0xc10 [ 292.134178][ T68] lock_acquire.part.0+0xbc/0x260 [ 292.134278][ T68] _raw_read_lock_bh+0x44/0x80 [ 292.134424][ T68] inet6_fill_ifla6_attrs+0x1c9c/0x23e0 [ 292.134552][ T68] inet6_fill_link_af+0x5c/0xe0 [ 292.134656][ T68] rtnl_fill_ifinfo.isra.0+0x1a45/0x2cd0 [ 292.134824][ T68] rtmsg_ifinfo_build_skb+0x144/0x250 [ 292.134954][ T68] rtmsg_ifinfo_event.part.0+0x2c/0x130 [ 292.135073][ T68] rtmsg_ifinfo+0x5c/0xb0 [ 292.135215][ T68] register_netdevice+0x1526/0x1bc0 [ 292.135318][ T68] register_netdev+0x23/0x40 [ 292.135423][ T68] vti6_init_net+0x280/0x3c0 [ 292.135569][ T68] ops_init+0x187/0x560 [ 292.135669][ T68] register_pernet_operations+0x395/0x8e0 [ 292.135792][ T68] register_pernet_device+0x2c/0x60 [ 292.135937][ T68] vti6_tunnel_init+0x17/0x100 [ 292.136048][ T68] do_one_initcall+0x12b/0x520 [ 292.136154][ T68] kernel_init_freeable+0x596/0x630 [ 292.136299][ T68] kernel_init+0x1e/0x170 [ 292.136408][ T68] ret_from_fork+0x474/0x6b0 [ 292.136512][ T68] ret_from_fork_asm+0x11/0x20 [ 292.136612][ T68] IN-SOFTIRQ-W at: [ 292.136714][ T68] __lock_acquire+0x378/0xc10 [ 292.136815][ T68] lock_acquire.part.0+0xbc/0x260 [ 292.136918][ T68] _raw_write_lock+0x33/0x40 [ 292.137065][ T68] addrconf_rs_timer+0xb0/0x770 [ 292.137169][ T68] call_timer_fn+0x163/0x4f0 [ 292.137274][ T68] __run_timers+0x68f/0xab0 [ 292.137429][ T68] run_timer_softirq+0xf0/0x160 [ 292.137531][ T68] handle_softirqs+0x1d8/0x940 [ 292.137636][ T68] __irq_exit_rcu+0x103/0x1c0 [ 292.137741][ T68] irq_exit_rcu+0xe/0x30 [ 292.137885][ T68] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 292.138013][ T68] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 292.138177][ T68] pv_native_safe_halt+0xf/0x10 [ 292.138280][ T68] default_idle+0x9/0x10 [ 292.138384][ T68] default_idle_call+0x6e/0xb0 [ 292.138485][ T68] cpuidle_idle_call.constprop.0+0x237/0x410 [ 292.138650][ T68] do_idle+0xf5/0x160 [ 292.138750][ T68] cpu_startup_entry+0x53/0x70 [ 292.138849][ T68] start_secondary+0x204/0x2b0 [ 292.138997][ T68] common_startup_64+0x13e/0x148 [ 292.139105][ T68] IN-SOFTIRQ-R at: [ 292.139170][ T68] __lock_acquire+0x378/0xc10 [ 292.139314][ T68] lock_acquire.part.0+0xbc/0x260 [ 292.139416][ T68] _raw_read_lock_bh+0x44/0x80 [ 292.139521][ T68] ipv6_get_lladdr+0xa8/0x3f0 [ 292.139662][ T68] addrconf_rs_timer+0x251/0x770 [ 292.139767][ T68] call_timer_fn+0x163/0x4f0 [ 292.139867][ T68] __run_timers+0x68f/0xab0 [ 292.139972][ T68] run_timer_softirq+0xf0/0x160 [ 292.140116][ T68] handle_softirqs+0x1d8/0x940 [ 292.140218][ T68] __irq_exit_rcu+0x103/0x1c0 [ 292.140318][ T68] irq_exit_rcu+0xe/0x30 [ 292.140463][ T68] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 292.140583][ T68] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 292.140701][ T68] pv_native_safe_halt+0xf/0x10 [ 292.140843][ T68] default_idle+0x9/0x10 [ 292.140944][ T68] default_idle_call+0x6e/0xb0 [ 292.141051][ T68] cpuidle_idle_call.constprop.0+0x237/0x410 [ 292.141216][ T68] do_idle+0xf5/0x160 [ 292.141317][ T68] cpu_startup_entry+0x53/0x70 [ 292.141422][ T68] start_secondary+0x204/0x2b0 [ 292.141564][ T68] common_startup_64+0x13e/0x148 [ 292.141664][ T68] INITIAL USE at: [ 292.141728][ T68] __lock_acquire+0x378/0xc10 [ 292.141873][ T68] lock_acquire.part.0+0xbc/0x260 [ 292.141985][ T68] _raw_write_lock_bh+0x38/0x50 [ 292.142085][ T68] addrconf_permanent_addr+0x108/0x9c0 [ 292.142247][ T68] addrconf_notify+0x151/0xf30 [ 292.142349][ T68] notifier_call_chain+0xb0/0x320 [ 292.142457][ T68] __dev_notify_flags+0xde/0x280 [ 292.142558][ T68] netif_change_flags+0xfe/0x190 [ 292.142659][ T68] do_setlink.isra.0+0x1d25/0x2a60 [ 292.142762][ T68] rtnl_newlink+0x8d1/0xee0 [ 292.142909][ T68] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 292.143015][ T68] netlink_rcv_skb+0x14e/0x3a0 [ 292.143116][ T68] netlink_unicast+0x486/0x750 [ 292.143218][ T68] netlink_sendmsg+0x735/0xc60 [ 292.143323][ T68] ____sys_sendmsg+0x419/0x850 [ 292.143425][ T68] ___sys_sendmsg+0x14e/0x1d0 [ 292.143529][ T68] __sys_sendmsg+0x145/0x1f0 [ 292.143629][ T68] do_syscall_64+0x117/0x590 [ 292.143729][ T68] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 292.143849][ T68] INITIAL READ USE at: [ 292.143974][ T68] __lock_acquire+0x378/0xc10 [ 292.144077][ T68] lock_acquire.part.0+0xbc/0x260 [ 292.144201][ T68] _raw_read_lock_bh+0x44/0x80 [ 292.144345][ T68] inet6_fill_ifla6_attrs+0x1c9c/0x23e0 [ 292.144470][ T68] inet6_fill_link_af+0x5c/0xe0 [ 292.144572][ T68] rtnl_fill_ifinfo.isra.0+0x1a45/0x2cd0 [ 292.144701][ T68] rtmsg_ifinfo_build_skb+0x144/0x250 [ 292.144822][ T68] rtmsg_ifinfo_event.part.0+0x2c/0x130 [ 292.144990][ T68] rtmsg_ifinfo+0x5c/0xb0 [ 292.145130][ T68] register_netdevice+0x1526/0x1bc0 [ 292.145250][ T68] register_netdev+0x23/0x40 [ 292.145350][ T68] vti6_init_net+0x280/0x3c0 [ 292.145498][ T68] ops_init+0x187/0x560 [ 292.145599][ T68] register_pernet_operations+0x395/0x8e0 [ 292.145721][ T68] register_pernet_device+0x2c/0x60 [ 292.145887][ T68] vti6_tunnel_init+0x17/0x100 [ 292.145995][ T68] do_one_initcall+0x12b/0x520 [ 292.146095][ T68] kernel_init_freeable+0x596/0x630 [ 292.146257][ T68] kernel_init+0x1e/0x170 [ 292.146360][ T68] ret_from_fork+0x474/0x6b0 [ 292.146470][ T68] ret_from_fork_asm+0x11/0x20 [ 292.146575][ T68] } [ 292.146618][ T68] ... key at: [] __key.37+0x0/0x40 [ 292.146754][ T68] ... acquired at: [ 292.146815][ T68] __lock_acquire+0x508/0xc10 [ 292.146939][ T68] lock_acquire.part.0+0xbc/0x260 [ 292.147031][ T68] _raw_spin_lock+0x33/0x40 [ 292.147112][ T68] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 292.147216][ T68] __ipv6_dev_ac_inc+0x57e/0x930 [ 292.147296][ T68] addrconf_join_anycast+0x1bc/0x260 [ 292.147381][ T68] __ipv6_ifa_notify+0x75b/0xad0 [ 292.147462][ T68] addrconf_dad_completed+0x14b/0xe10 [ 292.147541][ T68] addrconf_dad_work+0x3c1/0x930 [ 292.147622][ T68] process_one_work+0xdf8/0x1410 [ 292.147706][ T68] worker_thread+0x4f1/0xd60 [ 292.147787][ T68] kthread+0x367/0x460 [ 292.147852][ T68] ret_from_fork+0x474/0x6b0 [ 292.147938][ T68] ret_from_fork_asm+0x11/0x20 [ 292.148071][ T68] [ 292.148112][ T68] -> (acaddr_hash_lock){+.+.}-{3:3} { [ 292.148192][ T68] HARDIRQ-ON-W at: [ 292.148251][ T68] __lock_acquire+0x378/0xc10 [ 292.148396][ T68] lock_acquire.part.0+0xbc/0x260 [ 292.148499][ T68] _raw_spin_lock+0x33/0x40 [ 292.148597][ T68] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 292.148721][ T68] __ipv6_dev_ac_inc+0x57e/0x930 [ 292.148824][ T68] addrconf_join_anycast+0x1bc/0x260 [ 292.148931][ T68] __ipv6_ifa_notify+0x75b/0xad0 [ 292.149036][ T68] addrconf_dad_completed+0x14b/0xe10 [ 292.149138][ T68] addrconf_dad_work+0x3c1/0x930 [ 292.149281][ T68] process_one_work+0xdf8/0x1410 [ 292.149382][ T68] worker_thread+0x4f1/0xd60 [ 292.149488][ T68] kthread+0x367/0x460 [ 292.149576][ T68] ret_from_fork+0x474/0x6b0 [ 292.149678][ T68] ret_from_fork_asm+0x11/0x20 [ 292.149787][ T68] SOFTIRQ-ON-W at: [ 292.149857][ T68] __lock_acquire+0x378/0xc10 [ 292.149976][ T68] lock_acquire.part.0+0xbc/0x260 [ 292.150090][ T68] _raw_spin_lock+0x33/0x40 [ 292.150195][ T68] __ipv6_dev_ac_dec+0x236/0x5d0 [ 292.150295][ T68] addrconf_leave_anycast+0x1bc/0x260 [ 292.150394][ T68] __ipv6_ifa_notify+0x6b4/0xad0 [ 292.150502][ T68] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 292.150608][ T68] addrconf_notify+0x2c8/0xf30 [ 292.150710][ T68] notifier_call_chain+0xb0/0x320 [ 292.150815][ T68] netif_close_many+0x2c9/0x640 [ 292.150915][ T68] unregister_netdevice_many_notify+0x71a/0x1b30 [ 292.151088][ T68] default_device_exit_batch+0x38b/0x600 [ 292.151262][ T68] ops_undo_list+0x2ce/0x8f0 [ 292.151363][ T68] cleanup_net+0x431/0x940 [ 292.151468][ T68] process_one_work+0xdf8/0x1410 [ 292.151613][ T68] worker_thread+0x4f1/0xd60 [ 292.151763][ T68] kthread+0x367/0x460 [ 292.151844][ T68] ret_from_fork+0x474/0x6b0 [ 292.151954][ T68] ret_from_fork_asm+0x11/0x20 [ 292.152057][ T68] INITIAL USE at: [ 292.152116][ T68] __lock_acquire+0x378/0xc10 [ 292.152215][ T68] lock_acquire.part.0+0xbc/0x260 [ 292.152357][ T68] _raw_spin_lock+0x33/0x40 [ 292.152460][ T68] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 292.152583][ T68] __ipv6_dev_ac_inc+0x57e/0x930 [ 292.152687][ T68] addrconf_join_anycast+0x1bc/0x260 [ 292.152787][ T68] __ipv6_ifa_notify+0x75b/0xad0 [ 292.152888][ T68] addrconf_dad_completed+0x14b/0xe10 [ 292.153085][ T68] addrconf_dad_work+0x3c1/0x930 [ 292.153197][ T68] process_one_work+0xdf8/0x1410 [ 292.153296][ T68] worker_thread+0x4f1/0xd60 [ 292.153404][ T68] kthread+0x367/0x460 [ 292.153490][ T68] ret_from_fork+0x474/0x6b0 [ 292.153594][ T68] ret_from_fork_asm+0x11/0x20 [ 292.153704][ T68] } [ 292.153745][ T68] ... key at: [] acaddr_hash_lock+0x18/0x45a0 [ 292.153869][ T68] ... acquired at: [ 292.153928][ T68] mark_lock+0x1d7/0xa00 [ 292.154017][ T68] mark_usage+0x105/0x170 [ 292.154095][ T68] __lock_acquire+0x378/0xc10 [ 292.154173][ T68] lock_acquire.part.0+0xbc/0x260 [ 292.154257][ T68] _raw_spin_lock+0x33/0x40 [ 292.154339][ T68] __ipv6_dev_ac_dec+0x236/0x5d0 [ 292.154421][ T68] addrconf_leave_anycast+0x1bc/0x260 [ 292.154506][ T68] __ipv6_ifa_notify+0x6b4/0xad0 [ 292.154628][ T68] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 292.154709][ T68] addrconf_notify+0x2c8/0xf30 [ 292.154830][ T68] notifier_call_chain+0xb0/0x320 [ 292.154912][ T68] netif_close_many+0x2c9/0x640 [ 292.155004][ T68] unregister_netdevice_many_notify+0x71a/0x1b30 [ 292.155107][ T68] default_device_exit_batch+0x38b/0x600 [ 292.155209][ T68] ops_undo_list+0x2ce/0x8f0 [ 292.155289][ T68] cleanup_net+0x431/0x940 [ 292.155369][ T68] process_one_work+0xdf8/0x1410 [ 292.155454][ T68] worker_thread+0x4f1/0xd60 [ 292.155535][ T68] kthread+0x367/0x460 [ 292.155637][ T68] ret_from_fork+0x474/0x6b0 [ 292.155719][ T68] ret_from_fork_asm+0x11/0x20 [ 292.155804][ T68] [ 292.155844][ T68] [ 292.155844][ T68] stack backtrace: [ 292.155958][ T68] CPU: 3 UID: 0 PID: 68 Comm: kworker/u16:1 Not tainted 7.1.0-rc5-virtme #1 PREEMPT(full) [ 292.155962][ T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 292.155964][ T68] Workqueue: netns cleanup_net [ 292.155968][ T68] Call Trace: [ 292.155969][ T68] [ 292.155971][ T68] dump_stack_lvl+0x6f/0xa0 [ 292.155974][ T68] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 292.155977][ T68] mark_lock_irq+0x989/0x9c0 [ 292.155980][ T68] mark_lock+0x1d7/0xa00 [ 292.155981][ T68] mark_usage+0x105/0x170 [ 292.155983][ T68] __lock_acquire+0x378/0xc10 [ 292.155985][ T68] lock_acquire.part.0+0xbc/0x260 [ 292.155986][ T68] ? __ipv6_dev_ac_dec+0x236/0x5d0 [ 292.155988][ T68] ? rcu_is_watching+0x15/0xd0 [ 292.155991][ T68] ? do_raw_read_unlock+0x70/0x70 [ 292.155992][ T68] ? lock_acquire+0x134/0x160 [ 292.155994][ T68] _raw_spin_lock+0x33/0x40 [ 292.155995][ T68] ? __ipv6_dev_ac_dec+0x236/0x5d0 [ 292.155997][ T68] __ipv6_dev_ac_dec+0x236/0x5d0 [ 292.155999][ T68] addrconf_leave_anycast+0x1bc/0x260 [ 292.156000][ T68] ? inet6_dump_ifinfo+0x6e0/0x6e0 [ 292.156002][ T68] ? __ipv6_isatap_ifid+0x210/0x210 [ 292.156004][ T68] ? nlmsg_notify+0x62/0x250 [ 292.156006][ T68] __ipv6_ifa_notify+0x6b4/0xad0 [ 292.156008][ T68] ? cleanup_prefix_route+0x550/0x550 [ 292.156010][ T68] ? find_held_lock+0x2b/0x80 [ 292.156012][ T68] ? __lock_release.isra.0+0x6b/0x1a0 [ 292.156013][ T68] ? __rwlock_init+0x150/0x150 [ 292.156015][ T68] ? mark_held_locks+0x40/0x70 [ 292.156016][ T68] ? addrconf_ifdown.isra.0+0xa70/0x15f0 [ 292.156018][ T68] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 292.156020][ T68] ? __timer_delete_sync+0xdb/0x130 [ 292.156023][ T68] ? addrconf_dad_run+0x1b0/0x1b0 [ 292.156025][ T68] ? netkit_xmit+0x14c0/0x14c0 [ 292.156029][ T68] addrconf_notify+0x2c8/0xf30 [ 292.156030][ T68] ? team_port_get_rtnl+0x65/0xc0 [ 292.156033][ T68] notifier_call_chain+0xb0/0x320 [ 292.156035][ T68] netif_close_many+0x2c9/0x640 [ 292.156037][ T68] ? irqentry_exit+0x21c/0x710 [ 292.156038][ T68] ? irqentry_exit+0x21c/0x710 [ 292.156039][ T68] ? lockdep_hardirqs_off+0x91/0xf0 [ 292.156041][ T68] ? __dev_close_many+0x670/0x670 [ 292.156043][ T68] ? netif_close_many_and_unlock+0x22/0x2c0 [ 292.156045][ T68] unregister_netdevice_many_notify+0x71a/0x1b30 [ 292.156047][ T68] ? mutex_is_locked+0x1c/0x50 [ 292.156049][ T68] ? unregister_netdevice_queued+0x80/0x80 [ 292.156051][ T68] ? mutex_is_locked+0x1c/0x50 [ 292.156053][ T68] ? rtnl_is_locked+0x15/0x20 [ 292.156055][ T68] ? unregister_netdevice_queue+0x6a/0x470 [ 292.156056][ T68] ? unregister_netdevice_many+0x20/0x20 [ 292.156058][ T68] default_device_exit_batch+0x38b/0x600 [ 292.156060][ T68] ? unregister_netdev+0x60/0x60 [ 292.156061][ T68] ? perf_trace_sched_switch+0x7d0/0x7d0 [ 292.156064][ T68] ? fou_exit_net+0x30/0x110 [ 292.156067][ T68] ops_undo_list+0x2ce/0x8f0 [ 292.156069][ T68] ? lockdep_hardirqs_on+0x8c/0x130 [ 292.156070][ T68] ? netns_install+0x2a0/0x2a0 [ 292.156072][ T68] ? __lock_release.isra.0+0x6b/0x1a0 [ 292.156073][ T68] ? idr_destroy+0x121/0x250 [ 292.156076][ T68] cleanup_net+0x431/0x940 [ 292.156078][ T68] ? net_passive_dec+0x1c0/0x1c0 [ 292.156079][ T68] ? process_one_work+0xdb7/0x1410 [ 292.156081][ T68] ? lock_acquire+0x134/0x160 [ 292.156082][ T68] ? rcu_is_watching+0x15/0xd0 [ 292.156084][ T68] process_one_work+0xdf8/0x1410 [ 292.156087][ T68] ? pwq_dec_nr_in_flight+0x710/0x710 [ 292.156089][ T68] ? lock_acquire.part.0+0xbc/0x260 [ 292.156091][ T68] worker_thread+0x4f1/0xd60 [ 292.156093][ T68] ? rescuer_thread+0x1320/0x1320 [ 292.156095][ T68] ? __kthread_parkme+0xbd/0x210 [ 292.156097][ T68] ? rescuer_thread+0x1320/0x1320 [ 292.156098][ T68] kthread+0x367/0x460 [ 292.156100][ T68] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 292.156103][ T68] ? kthread_affine_node+0x330/0x330 [ 292.156105][ T68] ret_from_fork+0x474/0x6b0 [ 292.156106][ T68] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 292.156108][ T68] ? __switch_to+0x5a3/0xe00 [ 292.156110][ T68] ? kthread_affine_node+0x330/0x330 [ 292.156112][ T68] ret_from_fork_asm+0x11/0x20 [ 292.156115][ T68]