[ 13.892902][ C3] [ 13.893052][ C3] ================================ [ 13.893253][ C3] WARNING: inconsistent lock state [ 13.893449][ C3] 6.15.0-virtme #1 Not tainted [ 13.893644][ C3] -------------------------------- [ 13.893836][ C3] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. [ 13.894077][ C3] kworker/u20:1/136 [HC0[0]:SC1[1]:HE1:SE0] takes: [ 13.894321][ C3] ffffffff9a1c5af8 (pin_fs_lock){+.?.}-{3:3}, at: simple_pin_fs+0x24/0x150 [ 13.894670][ C3] {SOFTIRQ-ON-W} state was registered at: [ 13.894870][ C3] __lock_acquire+0x20b/0x7e0 [ 13.895072][ C3] lock_acquire.part.0+0xb6/0x240 [ 13.895269][ C3] _raw_spin_lock+0x33/0x40 [ 13.895473][ C3] simple_pin_fs+0x24/0x150 [ 13.895668][ C3] start_creating.part.0+0x52/0x310 [ 13.895863][ C3] debugfs_create_dir+0x6a/0x540 [ 13.896062][ C3] component_debug_init+0x17/0x30 [ 13.896259][ C3] do_one_initcall+0x8f/0x1e0 [ 13.896456][ C3] do_initcalls+0x176/0x280 [ 13.896652][ C3] kernel_init_freeable+0x22d/0x300 [ 13.896847][ C3] kernel_init+0x20/0x200 [ 13.897044][ C3] ret_from_fork+0x240/0x320 [ 13.897244][ C3] ret_from_fork_asm+0x1a/0x30 [ 13.897441][ C3] irq event stamp: 1504 [ 13.897589][ C3] hardirqs last enabled at (1504): [] _raw_spin_unlock_irqrestore+0x5d/0x80 [ 13.897981][ C3] hardirqs last disabled at (1503): [] _raw_spin_lock_irqsave+0x5b/0x60 [ 13.898325][ C3] softirqs last enabled at (242): [] handle_softirqs+0x358/0x620 [ 13.898674][ C3] softirqs last disabled at (589): [] __irq_exit_rcu+0xfa/0x160 [ 13.899014][ C3] [ 13.899014][ C3] other info that might help us debug this: [ 13.899299][ C3] Possible unsafe locking scenario: [ 13.899299][ C3] [ 13.899587][ C3] CPU0 [ 13.899760][ C3] ---- [ 13.899906][ C3] lock(pin_fs_lock); [ 13.900057][ C3] [ 13.900202][ C3] lock(pin_fs_lock); [ 13.900353][ C3] [ 13.900353][ C3] *** DEADLOCK *** [ 13.900353][ C3] [ 13.900639][ C3] 4 locks held by kworker/u20:1/136: [ 13.900838][ C3] #0: ffff8880010a9d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7e5/0x1660 [ 13.901239][ C3] #1: ffffc900006b7d40 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0xdf6/0x1660 [ 13.901677][ C3] #2: ffffffff99ff76d0 (cgroup_threadgroup_rwsem){.+.+}-{0:0}, at: cgroup_can_fork+0x25/0x270 [ 13.902106][ C3] #3: ffffffff99f774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch+0x2e4/0xf20 [ 13.902674][ C3] [ 13.902674][ C3] stack backtrace: [ 13.903065][ C3] CPU: 3 UID: 0 PID: 136 Comm: kworker/u20:1 Not tainted 6.15.0-virtme #1 PREEMPT(full) [ 13.903072][ C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.903077][ C3] Workqueue: events_unbound call_usermodehelper_exec_work [ 13.903088][ C3] Call Trace: [ 13.903091][ C3] [ 13.903095][ C3] dump_stack_lvl+0x82/0xd0 [ 13.903106][ C3] print_usage_bug.part.0+0x25f/0x360 [ 13.903116][ C3] mark_lock_irq+0x343/0x400 [ 13.903124][ C3] ? __pfx_unwind_next_frame+0x10/0x10 [ 13.903132][ C3] ? save_trace+0x52/0x170 [ 13.903140][ C3] mark_lock+0x174/0x2f0 [ 13.903146][ C3] mark_usage+0x46/0x150 [ 13.903152][ C3] __lock_acquire+0x20b/0x7e0 [ 13.903158][ C3] ? __lock_acquire+0x44d/0x7e0 [ 13.903165][ C3] lock_acquire.part.0+0xb6/0x240 [ 13.903171][ C3] ? simple_pin_fs+0x24/0x150 [ 13.903178][ C3] ? rcu_is_watching+0x12/0xc0 [ 13.903186][ C3] ? lock_acquire+0x10c/0x170 [ 13.903191][ C3] ? simple_pin_fs+0x24/0x150 [ 13.903198][ C3] _raw_spin_lock+0x33/0x40 [ 13.903206][ C3] ? simple_pin_fs+0x24/0x150 [ 13.903210][ C3] simple_pin_fs+0x24/0x150 [ 13.903216][ C3] debugfs_remove+0x35/0x70 [ 13.903223][ C3] ref_tracker_dir_exit+0xcf/0x740 [ 13.903230][ C3] ? __pfx_ref_tracker_free+0x10/0x10 [ 13.903235][ C3] ? __sk_destruct+0x383/0x780 [ 13.903243][ C3] ? rcu_do_batch+0x34c/0xf20 [ 13.903248][ C3] ? __pfx_ref_tracker_dir_exit+0x10/0x10 [ 13.903253][ C3] ? irq_exit_rcu+0xe/0x30 [ 13.903260][ C3] ? sysvec_apic_timer_interrupt+0xa8/0xc0 [ 13.903268][ C3] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 13.903274][ C3] ? _raw_spin_unlock_irqrestore+0x41/0x80 [ 13.903280][ C3] ? sched_cgroup_fork+0x3ed/0x560 [ 13.903286][ C3] ? copy_process+0x2b40/0x5210 [ 13.903293][ C3] ? kernel_clone+0xc1/0x510 [ 13.903297][ C3] ? user_mode_thread+0xbe/0x100 [ 13.903303][ C3] ? call_usermodehelper_exec_work+0x5e/0x150 [ 13.903308][ C3] ? process_one_work+0xe40/0x1660 [ 13.903314][ C3] ? worker_thread+0x591/0xcf0 [ 13.903324][ C3] __put_net+0x19/0x60 [ 13.903331][ C3] __sk_destruct+0x58a/0x780 [ 13.903337][ C3] ? rcu_do_batch+0x34a/0xf20 [ 13.903341][ C3] rcu_do_batch+0x34c/0xf20 [ 13.903348][ C3] ? find_held_lock+0x2b/0x80 [ 13.903354][ C3] ? __pfx_rcu_do_batch+0x10/0x10 [ 13.903360][ C3] ? mark_held_locks+0x49/0x80 [ 13.903365][ C3] ? note_gp_changes+0x182/0x1e0 [ 13.903369][ C3] ? lockdep_hardirqs_on+0x7c/0x110 [ 13.903377][ C3] rcu_core+0x2bb/0x500 [ 13.903385][ C3] handle_softirqs+0x218/0x620 [ 13.903394][ C3] __irq_exit_rcu+0xfa/0x160 [ 13.903400][ C3] irq_exit_rcu+0xe/0x30 [ 13.903405][ C3] sysvec_apic_timer_interrupt+0xa8/0xc0 [ 13.903411][ C3] [ 13.903413][ C3] [ 13.903415][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 13.903420][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x41/0x80 [ 13.903426][ C3] Code: 74 24 10 e8 c1 fe 81 fd 48 89 ef e8 79 51 82 fd 81 e3 00 02 00 00 75 29 9c 58 f6 c4 02 75 35 48 85 db 74 01 fb bf 01 00 00 00 fa 4e 76 fd 65 8b 05 13 bd 96 02 85 c0 74 0e 5b 5d c3 cc cc cc [ 13.903431][ C3] RSP: 0018:ffffc900006b7870 EFLAGS: 00000206 [ 13.903436][ C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 0000000000000080 [ 13.903439][ C3] RDX: 0000000000000000 RSI: ffffffff99a9175c RDI: 0000000000000001 [ 13.903442][ C3] RBP: ffff888008e7ac68 R08: 0000000000000001 R09: 0000000000000001 [ 13.903446][ C3] R10: ffffffff9a9e7cd7 R11: ffff888008e7ac80 R12: 0000000000000000 [ 13.903449][ C3] R13: 0000000000000296 R14: ffff888008e7ac68 R15: 0000000000000003 [ 13.903461][ C3] sched_cgroup_fork+0x3ed/0x560 [ 13.903467][ C3] ? debug_mutex_init+0x37/0x70 [ 13.903474][ C3] copy_process+0x2b40/0x5210 [ 13.903485][ C3] ? __pfx_copy_process+0x10/0x10 [ 13.903491][ C3] ? debug_object_deactivate+0x227/0x3b0 [ 13.903499][ C3] ? __lock_release+0x5d/0x170 [ 13.903510][ C3] kernel_clone+0xc1/0x510 [ 13.903517][ C3] ? __pfx_kernel_clone+0x10/0x10 [ 13.903522][ C3] ? rcu_read_lock_any_held+0x43/0xb0 [ 13.903530][ C3] ? validate_chain+0x166/0x4d0 [ 13.903539][ C3] ? __lock_acquire+0x44d/0x7e0 [ 13.903548][ C3] user_mode_thread+0xbe/0x100 [ 13.903554][ C3] ? __pfx_user_mode_thread+0x10/0x10 [ 13.903565][ C3] ? __pfx_call_usermodehelper_exec_async+0x10/0x10 [ 13.903571][ C3] ? __pfx_kernel_sigaction+0x10/0x10 [ 13.903578][ C3] ? rcu_is_watching+0x12/0xc0 [ 13.903586][ C3] call_usermodehelper_exec_work+0x5e/0x150 [ 13.903593][ C3] process_one_work+0xe40/0x1660 [ 13.903603][ C3] ? __pfx_process_one_work+0x10/0x10 [ 13.903612][ C3] ? assign_work+0x16c/0x240 [ 13.903620][ C3] worker_thread+0x591/0xcf0 [ 13.903629][ C3] ? __pfx_worker_thread+0x10/0x10 [ 13.903634][ C3] kthread+0x37e/0x600 [ 13.903640][ C3] ? __pfx_kthread+0x10/0x10 [ 13.903644][ C3] ? ret_from_fork+0x1b/0x320 [ 13.903651][ C3] ? __lock_release+0x5d/0x170 [ 13.903656][ C3] ? rcu_is_watching+0x12/0xc0 [ 13.903661][ C3] ? __pfx_kthread+0x10/0x10 [ 13.903667][ C3] ret_from_fork+0x240/0x320 [ 13.903672][ C3] ? __pfx_kthread+0x10/0x10 [ 13.903677][ C3] ret_from_fork_asm+0x1a/0x30 [ 13.903691][ C3] [ 13.937095][ C3] BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1576 [ 13.937642][ C3] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 136, name: kworker/u20:1 [ 13.938392][ C3] preempt_count: 101, expected: 0 [ 13.938696][ C3] RCU nest depth: 0, expected: 0 [ 13.938895][ C3] INFO: lockdep is turned off. [ 13.939088][ C3] Preemption disabled at: [ 13.939090][ C3] [<0000000000000000>] 0x0 [ 13.939411][ C3] CPU: 3 UID: 0 PID: 136 Comm: kworker/u20:1 Not tainted 6.15.0-virtme #1 PREEMPT(full) [ 13.939417][ C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.939419][ C3] Workqueue: events_unbound call_usermodehelper_exec_work [ 13.939431][ C3] Call Trace: [ 13.939434][ C3] [ 13.939437][ C3] dump_stack_lvl+0xb0/0xd0 [ 13.939446][ C3] __might_resched+0x360/0x5a0 [ 13.939455][ C3] down_write+0x72/0x210 [ 13.939459][ C3] ? __pfx_down_write+0x10/0x10 [ 13.939462][ C3] ? simple_recursive_removal+0x33/0x610 [ 13.939468][ C3] ? rcu_is_watching+0x12/0xc0 [ 13.939475][ C3] ? do_raw_spin_unlock+0x58/0x220 [ 13.939479][ C3] simple_recursive_removal+0x6a/0x610 [ 13.939483][ C3] ? do_raw_spin_unlock+0x58/0x220 [ 13.939486][ C3] ? __pfx_remove_one+0x10/0x10 [ 13.939492][ C3] debugfs_remove+0x44/0x70 [ 13.939496][ C3] ref_tracker_dir_exit+0xcf/0x740 [ 13.939502][ C3] ? __pfx_ref_tracker_free+0x10/0x10 [ 13.939504][ C3] ? __sk_destruct+0x383/0x780 [ 13.939511][ C3] ? rcu_do_batch+0x34c/0xf20 [ 13.939516][ C3] ? __pfx_ref_tracker_dir_exit+0x10/0x10 [ 13.939518][ C3] ? irq_exit_rcu+0xe/0x30 [ 13.939524][ C3] ? sysvec_apic_timer_interrupt+0xa8/0xc0 [ 13.939530][ C3] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 13.939535][ C3] ? _raw_spin_unlock_irqrestore+0x41/0x80 [ 13.939540][ C3] ? sched_cgroup_fork+0x3ed/0x560 [ 13.939544][ C3] ? copy_process+0x2b40/0x5210 [ 13.939549][ C3] ? kernel_clone+0xc1/0x510 [ 13.939552][ C3] ? user_mode_thread+0xbe/0x100 [ 13.939555][ C3] ? call_usermodehelper_exec_work+0x5e/0x150 [ 13.939559][ C3] ? process_one_work+0xe40/0x1660 [ 13.939563][ C3] ? worker_thread+0x591/0xcf0 [ 13.939568][ C3] __put_net+0x19/0x60 [ 13.939573][ C3] __sk_destruct+0x58a/0x780 [ 13.939578][ C3] ? rcu_do_batch+0x34a/0xf20 [ 13.939581][ C3] rcu_do_batch+0x34c/0xf20 [ 13.939584][ C3] ? find_held_lock+0x2b/0x80 [ 13.939589][ C3] ? __pfx_rcu_do_batch+0x10/0x10 [ 13.939592][ C3] ? mark_held_locks+0x49/0x80 [ 13.939598][ C3] ? note_gp_changes+0x182/0x1e0 [ 13.939601][ C3] ? lockdep_hardirqs_on+0x7c/0x110 [ 13.939606][ C3] rcu_core+0x2bb/0x500 [ 13.939611][ C3] handle_softirqs+0x218/0x620 [ 13.939616][ C3] __irq_exit_rcu+0xfa/0x160 [ 13.939620][ C3] irq_exit_rcu+0xe/0x30 [ 13.939623][ C3] sysvec_apic_timer_interrupt+0xa8/0xc0 [ 13.939626][ C3] [ 13.939627][ C3] [ 13.939629][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 13.939632][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x41/0x80 [ 13.939636][ C3] Code: 74 24 10 e8 c1 fe 81 fd 48 89 ef e8 79 51 82 fd 81 e3 00 02 00 00 75 29 9c 58 f6 c4 02 75 35 48 85 db 74 01 fb bf 01 00 00 00 fa 4e 76 fd 65 8b 05 13 bd 96 02 85 c0 74 0e 5b 5d c3 cc cc cc [ 13.939638][ C3] RSP: 0018:ffffc900006b7870 EFLAGS: 00000206 [ 13.939642][ C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 0000000000000080 [ 13.939643][ C3] RDX: 0000000000000000 RSI: ffffffff99a9175c RDI: 0000000000000001 [ 13.939645][ C3] RBP: ffff888008e7ac68 R08: 0000000000000001 R09: 0000000000000001 [ 13.939647][ C3] R10: ffffffff9a9e7cd7 R11: ffff888008e7ac80 R12: 0000000000000000 [ 13.939648][ C3] R13: 0000000000000296 R14: ffff888008e7ac68 R15: 0000000000000003 [ 13.939655][ C3] sched_cgroup_fork+0x3ed/0x560 [ 13.939658][ C3] ? debug_mutex_init+0x37/0x70 [ 13.939662][ C3] copy_process+0x2b40/0x5210 [ 13.939677][ C3] ? __pfx_copy_process+0x10/0x10 [ 13.939681][ C3] ? debug_object_deactivate+0x227/0x3b0 [ 13.939687][ C3] ? __lock_release+0x5d/0x170 [ 13.939693][ C3] kernel_clone+0xc1/0x510 [ 13.939698][ C3] ? __pfx_kernel_clone+0x10/0x10 [ 13.939701][ C3] ? rcu_read_lock_any_held+0x43/0xb0 [ 13.939707][ C3] ? validate_chain+0x166/0x4d0 [ 13.939713][ C3] ? __lock_acquire+0x44d/0x7e0 [ 13.939718][ C3] user_mode_thread+0xbe/0x100 [ 13.939722][ C3] ? __pfx_user_mode_thread+0x10/0x10 [ 13.939728][ C3] ? __pfx_call_usermodehelper_exec_async+0x10/0x10 [ 13.939732][ C3] ? __pfx_kernel_sigaction+0x10/0x10 [ 13.939736][ C3] ? rcu_is_watching+0x12/0xc0 [ 13.939741][ C3] call_usermodehelper_exec_work+0x5e/0x150 [ 13.939745][ C3] process_one_work+0xe40/0x1660 [ 13.939751][ C3] ? __pfx_process_one_work+0x10/0x10 [ 13.939756][ C3] ? assign_work+0x16c/0x240 [ 13.939760][ C3] worker_thread+0x591/0xcf0 [ 13.939766][ C3] ? __pfx_worker_thread+0x10/0x10 [ 13.939769][ C3] kthread+0x37e/0x600 [ 13.939774][ C3] ? __pfx_kthread+0x10/0x10 [ 13.939776][ C3] ? ret_from_fork+0x1b/0x320 [ 13.939782][ C3] ? __lock_release+0x5d/0x170 [ 13.939786][ C3] ? rcu_is_watching+0x12/0xc0 [ 13.939789][ C3] ? __pfx_kthread+0x10/0x10 [ 13.939792][ C3] ret_from_fork+0x240/0x320 [ 13.939795][ C3] ? __pfx_kthread+0x10/0x10 [ 13.939798][ C3] ret_from_fork_asm+0x1a/0x30 [ 13.939807][ C3]