[ 23.948055][ T239] gre: GRE over IPv4 demultiplexor driver [ 25.724744][ T262] ip_gre: GRE over IPv4 tunneling driver [ 38.878404][ T414] ip (414) used greatest stack depth: 23488 bytes left [ 79.187814][ T836] ip6_gre: GRE over IPv6 tunneling driver [ 116.268908][ C0] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 121.580808][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 126.060816][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 131.372849][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 139.725938][ T10] [ 139.726147][ T10] ===================================================== [ 139.726315][ T10] WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected [ 139.726511][ T10] 6.9.0-rc1-virtme #1 Not tainted [ 139.726639][ T10] ----------------------------------------------------- [ 139.726799][ T10] kworker/u16:0/10 [HC0[0]:SC0[2]:HE1:SE0] is trying to acquire: [ 139.727004][ T10] ffff888001a70968 (&p->alloc_lock){+.+.}-{2:2}, at: __get_task_comm+0x27/0x70 [ 139.727248][ T10] [ 139.727248][ T10] and this task is already holding: [ 139.727443][ T10] ffff88803613f198 (&ul->lock#2){+.-.}-{2:2}, at: rt_flush_dev+0x13b/0x670 [ 139.727680][ T10] which would create a new lock dependency: [ 139.727839][ T10] (&ul->lock#2){+.-.}-{2:2} -> (&p->alloc_lock){+.+.}-{2:2} [ 139.728034][ T10] [ 139.728034][ T10] but this new dependency connects a SOFTIRQ-irq-safe lock: [ 139.728253][ T10] (&ul->lock#2){+.-.}-{2:2} [ 139.728258][ T10] [ 139.728258][ T10] ... which became SOFTIRQ-irq-safe at: [ 139.728573][ T10] __lock_acquire+0x797/0x1570 [ 139.728710][ T10] lock_acquire.part.0+0xeb/0x330 [ 139.728840][ T10] _raw_spin_lock_bh+0x38/0x50 [ 139.728971][ T10] rt_del_uncached_list+0x77/0x200 [ 139.729102][ T10] dst_destroy+0xbc/0x370 [ 139.729235][ T10] rcu_do_batch+0x3c0/0xfb0 [ 139.729368][ T10] rcu_core+0x2be/0x500 [ 139.729465][ T10] __do_softirq+0x1f8/0x5df [ 139.729600][ T10] irq_exit_rcu+0x97/0xc0 [ 139.729729][ T10] sysvec_apic_timer_interrupt+0x75/0x80 [ 139.729862][ T10] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 139.730024][ T10] _raw_spin_unlock_irqrestore+0x43/0x70 [ 139.730154][ T10] get_partial_node.part.0+0x1c5/0x3a0 [ 139.730284][ T10] ___slab_alloc+0xb70/0x10a0 [ 139.730418][ T10] __kmalloc+0x34c/0x3c0 [ 139.730515][ T10] p9_fcall_init+0x7d/0x1b0 [ 139.730648][ T10] p9_tag_alloc+0x138/0x700 [ 139.730778][ T10] p9_client_prepare_req+0xe6/0x290 [ 139.730929][ T10] p9_client_rpc+0x18d/0x930 [ 139.731060][ T10] p9_client_clunk+0x74/0xe0 [ 139.731190][ T10] v9fs_dentry_release+0xb9/0x140 [ 139.731322][ T10] __dentry_kill+0x1d9/0x4f0 [ 139.731454][ T10] dput.part.0+0x333/0x6c0 [ 139.731585][ T10] walk_component+0x199/0x4f0 [ 139.731714][ T10] link_path_walk.part.0.constprop.0+0x494/0x9f0 [ 139.731881][ T10] path_openat+0x1be/0x440 [ 139.732012][ T10] do_filp_open+0x1b3/0x3e0 [ 139.732145][ T10] do_open_execat+0xab/0x2d0 [ 139.732276][ T10] open_exec+0x2b/0x50 [ 139.732373][ T10] load_elf_binary+0x558/0x2840 [ 139.732506][ T10] search_binary_handler+0x152/0x550 [ 139.732638][ T10] exec_binprm+0x120/0x400 [ 139.732765][ T10] bprm_execve+0xe9/0x4f0 [ 139.732893][ T10] do_execveat_common.isra.0+0x4a6/0x6a0 [ 139.733026][ T10] __x64_sys_execve+0x8c/0xb0 [ 139.733152][ T10] do_syscall_64+0xc6/0x1e0 [ 139.733281][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 139.733439][ T10] [ 139.733439][ T10] to a SOFTIRQ-irq-unsafe lock: [ 139.733596][ T10] (&p->alloc_lock){+.+.}-{2:2} [ 139.733600][ T10] [ 139.733600][ T10] ... which became SOFTIRQ-irq-unsafe at: [ 139.733911][ T10] ... [ 139.733913][ T10] __lock_acquire+0x797/0x1570 [ 139.734114][ T10] lock_acquire.part.0+0xeb/0x330 [ 139.734244][ T10] _raw_spin_lock+0x30/0x40 [ 139.734376][ T10] set_mems_allowed+0x1d/0x210 [ 139.734506][ T10] kernel_init_freeable+0x72/0x310 [ 139.734636][ T10] kernel_init+0x20/0x200 [ 139.734764][ T10] ret_from_fork+0x31/0x70 [ 139.734913][ T10] ret_from_fork_asm+0x1a/0x30 [ 139.735041][ T10] [ 139.735041][ T10] other info that might help us debug this: [ 139.735041][ T10] [ 139.735294][ T10] Possible interrupt unsafe locking scenario: [ 139.735294][ T10] [ 139.735487][ T10] CPU0 CPU1 [ 139.735621][ T10] ---- ---- [ 139.735751][ T10] lock(&p->alloc_lock); [ 139.735851][ T10] local_irq_disable(); [ 139.736016][ T10] lock(&ul->lock#2); [ 139.736178][ T10] lock(&p->alloc_lock); [ 139.736338][ T10] [ 139.736435][ T10] lock(&ul->lock#2); [ 139.736539][ T10] [ 139.736539][ T10] *** DEADLOCK *** [ 139.736539][ T10] [ 139.736728][ T10] 5 locks held by kworker/u16:0/10: [ 139.736857][ T10] #0: ffff88800190a948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xda6/0x1730 [ 139.737129][ T10] #1: ffffc900000afda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0xde2/0x1730 [ 139.737359][ T10] #2: ffffffffa159bc50 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xb60 [ 139.737590][ T10] #3: ffffffffa15b7208 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0x81/0x2d0 [ 139.737855][ T10] #4: ffff88803613f198 (&ul->lock#2){+.-.}-{2:2}, at: rt_flush_dev+0x13b/0x670 [ 139.738093][ T10] [ 139.738093][ T10] the dependencies between SOFTIRQ-irq-safe lock and the holding lock: [ 139.738346][ T10] -> (&ul->lock#2){+.-.}-{2:2} { [ 139.738482][ T10] HARDIRQ-ON-W at: [ 139.738581][ T10] __lock_acquire+0x797/0x1570 [ 139.738753][ T10] lock_acquire.part.0+0xeb/0x330 [ 139.738930][ T10] _raw_spin_lock_bh+0x38/0x50 [ 139.739098][ T10] rt_add_uncached_list+0x55/0x1b0 [ 139.739262][ T10] rt_cache_route+0xfd/0x150 [ 139.739426][ T10] rt_set_nexthop.constprop.0+0x283/0xe90 [ 139.739619][ T10] __mkroute_output+0x4fa/0x1210 [ 139.739779][ T10] ip_route_output_key_hash+0x15d/0x2b0 [ 139.739974][ T10] ip_route_output_flow+0x23/0x140 [ 139.740140][ T10] ip_tunnel_xmit+0x7b7/0x2890 [ 139.740304][ T10] __gre_xmit+0x4af/0xa40 [ip_gre] [ 139.740473][ T10] gre_tap_xmit+0x431/0x580 [ip_gre] [ 139.740641][ T10] dev_hard_start_xmit+0x10e/0x360 [ 139.740807][ T10] sch_direct_xmit+0x203/0x11c0 [ 139.740982][ T10] __dev_xmit_skb+0x936/0xfa0 [ 139.741155][ T10] __dev_queue_xmit+0x8be/0x16e0 [ 139.741316][ T10] ip6_finish_output2+0x512/0xf60 [ 139.741480][ T10] ip6_finish_output+0x553/0xdf0 [ 139.741651][ T10] ip6_output+0x1f3/0x770 [ 139.741818][ T10] NF_HOOK.constprop.0+0xe2/0x680 [ 139.741984][ T10] mld_sendpack+0x62d/0xbc0 [ 139.742155][ T10] mld_ifc_work+0x32/0x1f0 [ 139.742318][ T10] process_one_work+0xe2c/0x1730 [ 139.742479][ T10] worker_thread+0x587/0xd30 [ 139.742643][ T10] kthread+0x28a/0x350 [ 139.742777][ T10] ret_from_fork+0x31/0x70 [ 139.742957][ T10] ret_from_fork_asm+0x1a/0x30 [ 139.743123][ T10] IN-SOFTIRQ-W at: [ 139.743229][ T10] __lock_acquire+0x797/0x1570 [ 139.743395][ T10] lock_acquire.part.0+0xeb/0x330 [ 139.743559][ T10] _raw_spin_lock_bh+0x38/0x50 [ 139.743723][ T10] rt_del_uncached_list+0x77/0x200 [ 139.743888][ T10] dst_destroy+0xbc/0x370 [ 139.744050][ T10] rcu_do_batch+0x3c0/0xfb0 [ 139.744218][ T10] rcu_core+0x2be/0x500 [ 139.744382][ T10] __do_softirq+0x1f8/0x5df [ 139.744628][ T10] irq_exit_rcu+0x97/0xc0 [ 139.744792][ T10] sysvec_apic_timer_interrupt+0x75/0x80 [ 139.744987][ T10] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 139.745257][ T10] _raw_spin_unlock_irqrestore+0x43/0x70 [ 139.745451][ T10] get_partial_node.part.0+0x1c5/0x3a0 [ 139.745620][ T10] ___slab_alloc+0xb70/0x10a0 [ 139.745870][ T10] __kmalloc+0x34c/0x3c0 [ 139.746030][ T10] p9_fcall_init+0x7d/0x1b0 [ 139.746193][ T10] p9_tag_alloc+0x138/0x700 [ 139.746356][ T10] p9_client_prepare_req+0xe6/0x290 [ 139.746519][ T10] p9_client_rpc+0x18d/0x930 [ 139.746684][ T10] p9_client_clunk+0x74/0xe0 [ 139.746859][ T10] v9fs_dentry_release+0xb9/0x140 [ 139.747102][ T10] __dentry_kill+0x1d9/0x4f0 [ 139.747266][ T10] dput.part.0+0x333/0x6c0 [ 139.747442][ T10] walk_component+0x199/0x4f0 [ 139.747758][ T10] link_path_walk.part.0.constprop.0+0x494/0x9f0 [ 139.747958][ T10] path_openat+0x1be/0x440 [ 139.748118][ T10] do_filp_open+0x1b3/0x3e0 [ 139.748282][ T10] do_open_execat+0xab/0x2d0 [ 139.748446][ T10] open_exec+0x2b/0x50 [ 139.748577][ T10] load_elf_binary+0x558/0x2840 [ 139.748740][ T10] search_binary_handler+0x152/0x550 [ 139.748980][ T10] exec_binprm+0x120/0x400 [ 139.749149][ T10] bprm_execve+0xe9/0x4f0 [ 139.749312][ T10] do_execveat_common.isra.0+0x4a6/0x6a0 [ 139.749581][ T10] __x64_sys_execve+0x8c/0xb0 [ 139.749744][ T10] do_syscall_64+0xc6/0x1e0 [ 139.749906][ T10] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 139.750176][ T10] INITIAL USE at: [ 139.750275][ T10] __lock_acquire+0x797/0x1570 [ 139.750442][ T10] lock_acquire.part.0+0xeb/0x330 [ 139.750605][ T10] _raw_spin_lock_bh+0x38/0x50 [ 139.750848][ T10] rt_add_uncached_list+0x55/0x1b0 [ 139.751035][ T10] rt_cache_route+0xfd/0x150 [ 139.751197][ T10] rt_set_nexthop.constprop.0+0x283/0xe90 [ 139.751389][ T10] __mkroute_output+0x4fa/0x1210 [ 139.751553][ T10] ip_route_output_key_hash+0x15d/0x2b0 [ 139.751714][ T10] ip_route_output_flow+0x23/0x140 [ 139.751878][ T10] ip_tunnel_xmit+0x7b7/0x2890 [ 139.752116][ T10] __gre_xmit+0x4af/0xa40 [ip_gre] [ 139.752284][ T10] gre_tap_xmit+0x431/0x580 [ip_gre] [ 139.752448][ T10] dev_hard_start_xmit+0x10e/0x360 [ 139.752689][ T10] sch_direct_xmit+0x203/0x11c0 [ 139.752853][ T10] __dev_xmit_skb+0x936/0xfa0 [ 139.753015][ T10] __dev_queue_xmit+0x8be/0x16e0 [ 139.753175][ T10] ip6_finish_output2+0x512/0xf60 [ 139.753414][ T10] ip6_finish_output+0x553/0xdf0 [ 139.753574][ T10] ip6_output+0x1f3/0x770 [ 139.753741][ T10] NF_HOOK.constprop.0+0xe2/0x680 [ 139.754030][ T10] mld_sendpack+0x62d/0xbc0 [ 139.754274][ T10] mld_ifc_work+0x32/0x1f0 [ 139.754523][ T10] process_one_work+0xe2c/0x1730 [ 139.754872][ T10] worker_thread+0x587/0xd30 [ 139.755052][ T10] kthread+0x28a/0x350 [ 139.755194][ T10] ret_from_fork+0x31/0x70 [ 139.755360][ T10] ret_from_fork_asm+0x1a/0x30 [ 139.755523][ T10] } [ 139.755591][ T10] ... key at: [] __key.7+0x0/0x40 [ 139.755766][ T10] [ 139.755766][ T10] the dependencies between the lock to be acquired [ 139.755767][ T10] and SOFTIRQ-irq-unsafe lock: [ 139.756193][ T10] -> (&p->alloc_lock){+.+.}-{2:2} { [ 139.756336][ T10] HARDIRQ-ON-W at: [ 139.756435][ T10] __lock_acquire+0x797/0x1570 [ 139.756603][ T10] lock_acquire.part.0+0xeb/0x330 [ 139.756865][ T10] _raw_spin_lock+0x30/0x40 [ 139.757089][ T10] set_mems_allowed+0x1d/0x210 [ 139.757258][ T10] kernel_init_freeable+0x72/0x310 [ 139.757424][ T10] kernel_init+0x20/0x200 [ 139.757595][ T10] ret_from_fork+0x31/0x70 [ 139.757762][ T10] ret_from_fork_asm+0x1a/0x30 [ 139.757932][ T10] SOFTIRQ-ON-W at: [ 139.758178][ T10] __lock_acquire+0x797/0x1570 [ 139.758345][ T10] lock_acquire.part.0+0xeb/0x330 [ 139.758507][ T10] _raw_spin_lock+0x30/0x40 [ 139.758747][ T10] set_mems_allowed+0x1d/0x210 [ 139.758929][ T10] kernel_init_freeable+0x72/0x310 [ 139.759092][ T10] kernel_init+0x20/0x200 [ 139.759255][ T10] ret_from_fork+0x31/0x70 [ 139.759418][ T10] ret_from_fork_asm+0x1a/0x30 [ 139.759581][ T10] INITIAL USE at: [ 139.759678][ T10] __lock_acquire+0x797/0x1570 [ 139.759862][ T10] lock_acquire.part.0+0xeb/0x330 [ 139.760129][ T10] _raw_spin_lock+0x30/0x40 [ 139.760295][ T10] set_mems_allowed+0x1d/0x210 [ 139.760458][ T10] kernel_init_freeable+0x72/0x310 [ 139.760700][ T10] kernel_init+0x20/0x200 [ 139.760869][ T10] ret_from_fork+0x31/0x70 [ 139.761044][ T10] ret_from_fork_asm+0x1a/0x30 [ 139.761286][ T10] } [ 139.761357][ T10] ... key at: [] __key.388+0x0/0x40 [ 139.761553][ T10] ... acquired at: [ 139.761651][ T10] check_prev_add+0x194/0xce0 [ 139.761788][ T10] validate_chain+0x71d/0x9b0 [ 139.761998][ T10] __lock_acquire+0xaf0/0x1570 [ 139.762128][ T10] lock_acquire.part.0+0xeb/0x330 [ 139.762257][ T10] _raw_spin_lock+0x30/0x40 [ 139.762393][ T10] __get_task_comm+0x27/0x70 [ 139.762604][ T10] ref_tracker_alloc+0x2ee/0x490 [ 139.762737][ T10] rt_flush_dev+0x371/0x670 [ 139.762884][ T10] fib_netdev_event+0x248/0x5a0 [ 139.763020][ T10] notifier_call_chain+0xcd/0x150 [ 139.763225][ T10] unregister_netdevice_many_notify+0x548/0x1190 [ 139.763386][ T10] default_device_exit_batch+0x234/0x2d0 [ 139.763548][ T10] cleanup_net+0x4f3/0xb60 [ 139.763678][ T10] process_one_work+0xe2c/0x1730 [ 139.763926][ T10] worker_thread+0x587/0xd30 [ 139.764057][ T10] kthread+0x28a/0x350 [ 139.764156][ T10] ret_from_fork+0x31/0x70 [ 139.764288][ T10] ret_from_fork_asm+0x1a/0x30 [ 139.764418][ T10] [ 139.764559][ T10] [ 139.764559][ T10] stack backtrace: [ 139.764718][ T10] CPU: 2 PID: 10 Comm: kworker/u16:0 Not tainted 6.9.0-rc1-virtme #1 [ 139.764920][ T10] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 139.765284][ T10] Workqueue: netns cleanup_net [ 139.765421][ T10] Call Trace: [ 139.765534][ T10] [ 139.765605][ T10] dump_stack_lvl+0x82/0xd0 [ 139.765826][ T10] print_bad_irq_dependency+0x957/0xd40 [ 139.765961][ T10] ? __pfx_print_bad_irq_dependency+0x10/0x10 [ 139.766131][ T10] ? __pfx_usage_skip+0x10/0x10 [ 139.766268][ T10] ? __bfs+0x246/0x650 [ 139.766369][ T10] ? __pfx_usage_match+0x10/0x10 [ 139.766571][ T10] check_irq_usage+0x596/0x850 [ 139.766705][ T10] ? arch_stack_walk+0x8c/0xf0 [ 139.766846][ T10] ? __pfx_check_irq_usage+0x10/0x10 [ 139.766975][ T10] ? __bfs+0x246/0x650 [ 139.767146][ T10] ? __pfx_hlock_conflict+0x10/0x10 [ 139.767277][ T10] ? check_path.constprop.0+0x24/0x50 [ 139.767409][ T10] ? check_noncircular+0x14c/0x3e0 [ 139.767540][ T10] ? __pfx_check_noncircular+0x10/0x10 [ 139.767747][ T10] ? find_held_lock+0x2c/0x110 [ 139.767890][ T10] ? check_prev_add+0x194/0xce0 [ 139.768022][ T10] check_prev_add+0x194/0xce0 [ 139.768153][ T10] ? validate_chain+0x130/0x9b0 [ 139.768287][ T10] validate_chain+0x71d/0x9b0 [ 139.768496][ T10] ? mark_lock+0x38/0x3e0 [ 139.768595][ T10] ? __pfx_validate_chain+0x10/0x10 [ 139.768730][ T10] ? hlock_class+0x4e/0x130 [ 139.768871][ T10] ? mark_lock+0x38/0x3e0 [ 139.769046][ T10] __lock_acquire+0xaf0/0x1570 [ 139.769181][ T10] lock_acquire.part.0+0xeb/0x330 [ 139.769309][ T10] ? __get_task_comm+0x27/0x70 [ 139.769444][ T10] ? mark_lock+0x38/0x3e0 [ 139.769547][ T10] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 139.769747][ T10] ? trace_lock_acquire+0x135/0x1c0 [ 139.769889][ T10] ? __get_task_comm+0x27/0x70 [ 139.770019][ T10] ? lock_acquire+0x32/0xc0 [ 139.770149][ T10] ? __get_task_comm+0x27/0x70 [ 139.770355][ T10] _raw_spin_lock+0x30/0x40 [ 139.770487][ T10] ? __get_task_comm+0x27/0x70 [ 139.770615][ T10] __get_task_comm+0x27/0x70 [ 139.770744][ T10] ref_tracker_alloc+0x2ee/0x490 [ 139.770974][ T10] ? lock_acquire.part.0+0xeb/0x330 [ 139.771104][ T10] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 139.771239][ T10] ? rt_flush_dev+0x371/0x670 [ 139.771369][ T10] ? fib_netdev_event+0x248/0x5a0 [ 139.771505][ T10] ? notifier_call_chain+0xcd/0x150 [ 139.771711][ T10] ? unregister_netdevice_many_notify+0x548/0x1190 [ 139.771889][ T10] ? default_device_exit_batch+0x234/0x2d0 [ 139.772050][ T10] ? cleanup_net+0x4f3/0xb60 [ 139.772257][ T10] ? process_one_work+0xe2c/0x1730 [ 139.772389][ T10] ? worker_thread+0x587/0xd30 [ 139.772523][ T10] ? kthread+0x28a/0x350 [ 139.772622][ T10] ? ret_from_fork+0x31/0x70 [ 139.772752][ T10] ? ret_from_fork_asm+0x1a/0x30 [ 139.772957][ T10] ? do_raw_spin_lock+0x131/0x270 [ 139.773088][ T10] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 139.773217][ T10] ? lock_acquire+0x32/0xc0 [ 139.773349][ T10] ? rt_flush_dev+0x13b/0x670 [ 139.773553][ T10] rt_flush_dev+0x371/0x670 [ 139.773686][ T10] ? __timer_delete_sync+0xd3/0x110 [ 139.773822][ T10] ? __timer_delete_sync+0xa7/0x110 [ 139.773954][ T10] fib_netdev_event+0x248/0x5a0 [ 139.774163][ T10] notifier_call_chain+0xcd/0x150 [ 139.774297][ T10] unregister_netdevice_many_notify+0x548/0x1190 [ 139.774461][ T10] ? mutex_is_locked+0x17/0x50 [ 139.774593][ T10] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 139.774838][ T10] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 139.775015][ T10] default_device_exit_batch+0x234/0x2d0 [ 139.775144][ T10] ? __pfx_default_device_exit_batch+0x10/0x10 [ 139.775313][ T10] ? ops_exit_list+0xb4/0x170 [ 139.775443][ T10] cleanup_net+0x4f3/0xb60 [ 139.775570][ T10] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 139.775698][ T10] ? __pfx_cleanup_net+0x10/0x10 [ 139.775824][ T10] ? trace_lock_acquire+0x135/0x1c0 [ 139.776023][ T10] ? process_one_work+0xde2/0x1730 [ 139.776158][ T10] ? lock_acquire+0x32/0xc0 [ 139.776285][ T10] ? process_one_work+0xde2/0x1730 [ 139.776413][ T10] process_one_work+0xe2c/0x1730 [ 139.776616][ T10] ? __pfx___lock_release+0x10/0x10 [ 139.776744][ T10] ? __pfx_process_one_work+0x10/0x10 [ 139.776872][ T10] ? assign_work+0x16c/0x240 [ 139.777002][ T10] worker_thread+0x587/0xd30 [ 139.777131][ T10] ? __pfx_worker_thread+0x10/0x10 [ 139.777335][ T10] kthread+0x28a/0x350 [ 139.777431][ T10] ? __pfx_kthread+0x10/0x10 [ 139.777558][ T10] ret_from_fork+0x31/0x70 [ 139.777685][ T10] ? __pfx_kthread+0x10/0x10 [ 139.777884][ T10] ret_from_fork_asm+0x1a/0x30 [ 139.778014][ T10]