======================================================== WARNING: possible irq lock inversion dependency detected 5.0.0-rc5 #59 Not tainted -------------------------------------------------------- udevd/3867 just changed the state of lock: 00000000d7b45b1b (&(&ctx->ctx_lock)->rlock){..-.}, at: spin_lock_irq include/linux/spinlock.h:354 [inline] 00000000d7b45b1b (&(&ctx->ctx_lock)->rlock){..-.}, at: free_ioctx_users+0x2d/0x4a0 fs/aio.c:610 but this lock took another, SOFTIRQ-unsafe lock in the past: (&fiq->waitq){+.+.} and interrupts could create inverse lock ordering between them. other info that might help us debug this: Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&fiq->waitq); local_irq_disable(); lock(&(&ctx->ctx_lock)->rlock); lock(&fiq->waitq); lock(&(&ctx->ctx_lock)->rlock); *** DEADLOCK *** 2 locks held by udevd/3867: #0: 00000000495c22de (rcu_callback){....}, at: __rcu_reclaim kernel/rcu/rcu.h:228 [inline] #0: 00000000495c22de (rcu_callback){....}, at: rcu_do_batch kernel/rcu/tree.c:2452 [inline] #0: 00000000495c22de (rcu_callback){....}, at: invoke_rcu_callbacks kernel/rcu/tree.c:2773 [inline] #0: 00000000495c22de (rcu_callback){....}, at: rcu_process_callbacks+0xa0d/0x1390 kernel/rcu/tree.c:2754 #1: 00000000900eb55b (rcu_read_lock_sched){....}, at: percpu_ref_call_confirm_rcu lib/percpu-refcount.c:119 [inline] #1: 00000000900eb55b (rcu_read_lock_sched){....}, at: percpu_ref_switch_to_atomic_rcu+0x1b8/0x520 lib/percpu-refcount.c:158 the shortest dependencies between 2nd lock and 1st lock: -> (&fiq->waitq){+.+.} { HARDIRQ-ON-W at: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3841 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:329 [inline] flush_bg_queue+0x1f3/0x3c0 fs/fuse/dev.c:413 fuse_request_queue_background+0x2d1/0x580 fs/fuse/dev.c:652 fuse_request_send_background+0x58/0x120 fs/fuse/dev.c:663 cuse_send_init fs/fuse/cuse.c:458 [inline] cuse_channel_open+0x5ba/0x830 fs/fuse/cuse.c:518 misc_open+0x398/0x4c0 drivers/char/misc.c:141 chrdev_open+0x247/0x6b0 fs/char_dev.c:417 do_dentry_open+0x47d/0x1130 fs/open.c:771 vfs_open+0xa0/0xd0 fs/open.c:880 do_last fs/namei.c:3418 [inline] path_openat+0x10d7/0x4690 fs/namei.c:3534 do_filp_open+0x1a1/0x280 fs/namei.c:3564 do_sys_open+0x3fe/0x5d0 fs/open.c:1063 __do_sys_openat fs/open.c:1090 [inline] __se_sys_openat fs/open.c:1084 [inline] __x64_sys_openat+0x9d/0x100 fs/open.c:1084 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe SOFTIRQ-ON-W at: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3841 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:329 [inline] flush_bg_queue+0x1f3/0x3c0 fs/fuse/dev.c:413 fuse_request_queue_background+0x2d1/0x580 fs/fuse/dev.c:652 fuse_request_send_background+0x58/0x120 fs/fuse/dev.c:663 cuse_send_init fs/fuse/cuse.c:458 [inline] cuse_channel_open+0x5ba/0x830 fs/fuse/cuse.c:518 misc_open+0x398/0x4c0 drivers/char/misc.c:141 chrdev_open+0x247/0x6b0 fs/char_dev.c:417 do_dentry_open+0x47d/0x1130 fs/open.c:771 vfs_open+0xa0/0xd0 fs/open.c:880 do_last fs/namei.c:3418 [inline] path_openat+0x10d7/0x4690 fs/namei.c:3534 do_filp_open+0x1a1/0x280 fs/namei.c:3564 do_sys_open+0x3fe/0x5d0 fs/open.c:1063 __do_sys_openat fs/open.c:1090 [inline] __se_sys_openat fs/open.c:1084 [inline] __x64_sys_openat+0x9d/0x100 fs/open.c:1084 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe INITIAL USE at: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3841 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:329 [inline] flush_bg_queue+0x1f3/0x3c0 fs/fuse/dev.c:413 fuse_request_queue_background+0x2d1/0x580 fs/fuse/dev.c:652 fuse_request_send_background+0x58/0x120 fs/fuse/dev.c:663 cuse_send_init fs/fuse/cuse.c:458 [inline] cuse_channel_open+0x5ba/0x830 fs/fuse/cuse.c:518 misc_open+0x398/0x4c0 drivers/char/misc.c:141 chrdev_open+0x247/0x6b0 fs/char_dev.c:417 do_dentry_open+0x47d/0x1130 fs/open.c:771 vfs_open+0xa0/0xd0 fs/open.c:880 do_last fs/namei.c:3418 [inline] path_openat+0x10d7/0x4690 fs/namei.c:3534 do_filp_open+0x1a1/0x280 fs/namei.c:3564 do_sys_open+0x3fe/0x5d0 fs/open.c:1063 __do_sys_openat fs/open.c:1090 [inline] __se_sys_openat fs/open.c:1084 [inline] __x64_sys_openat+0x9d/0x100 fs/open.c:1084 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe } ... key at: [] __key.43075+0x0/0x40 ... acquired at: __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:329 [inline] aio_poll fs/aio.c:1772 [inline] __io_submit_one fs/aio.c:1875 [inline] io_submit_one+0xedf/0x1cf0 fs/aio.c:1908 __do_sys_io_submit fs/aio.c:1953 [inline] __se_sys_io_submit fs/aio.c:1923 [inline] __x64_sys_io_submit+0x1bd/0x580 fs/aio.c:1923 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> (&(&ctx->ctx_lock)->rlock){..-.} { IN-SOFTIRQ-W at: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3841 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:128 [inline] _raw_spin_lock_irq+0x60/0x80 kernel/locking/spinlock.c:160 spin_lock_irq include/linux/spinlock.h:354 [inline] free_ioctx_users+0x2d/0x4a0 fs/aio.c:610 percpu_ref_put_many include/linux/percpu-refcount.h:285 [inline] percpu_ref_put include/linux/percpu-refcount.h:301 [inline] percpu_ref_call_confirm_rcu lib/percpu-refcount.c:123 [inline] percpu_ref_switch_to_atomic_rcu+0x3e7/0x520 lib/percpu-refcount.c:158 __rcu_reclaim kernel/rcu/rcu.h:240 [inline] rcu_do_batch kernel/rcu/tree.c:2452 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2773 [inline] rcu_process_callbacks+0x928/0x1390 kernel/rcu/tree.c:2754 __do_softirq+0x266/0x95a kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x14a/0x570 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 arch_local_irq_enable arch/x86/include/asm/paravirt.h:776 [inline] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] _raw_spin_unlock_irq+0x54/0x90 kernel/locking/spinlock.c:192 spin_unlock_irq include/linux/spinlock.h:379 [inline] ep_poll+0x587/0xe50 fs/eventpoll.c:1858 do_epoll_wait+0x1b3/0x200 fs/eventpoll.c:2216 __do_sys_epoll_wait fs/eventpoll.c:2226 [inline] __se_sys_epoll_wait fs/eventpoll.c:2223 [inline] __x64_sys_epoll_wait+0x97/0xf0 fs/eventpoll.c:2223 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe INITIAL USE at: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3841 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:128 [inline] _raw_spin_lock_irq+0x60/0x80 kernel/locking/spinlock.c:160 spin_lock_irq include/linux/spinlock.h:354 [inline] aio_poll fs/aio.c:1771 [inline] __io_submit_one fs/aio.c:1875 [inline] io_submit_one+0xeb6/0x1cf0 fs/aio.c:1908 __do_sys_io_submit fs/aio.c:1953 [inline] __se_sys_io_submit fs/aio.c:1923 [inline] __x64_sys_io_submit+0x1bd/0x580 fs/aio.c:1923 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe } ... key at: [] __key.51970+0x0/0x40 ... acquired at: mark_lock_irq kernel/locking/lockdep.c:2690 [inline] mark_lock+0x427/0x1380 kernel/locking/lockdep.c:3062 mark_irqflags kernel/locking/lockdep.c:2940 [inline] __lock_acquire+0x128f/0x4700 kernel/locking/lockdep.c:3295 lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3841 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:128 [inline] _raw_spin_lock_irq+0x60/0x80 kernel/locking/spinlock.c:160 spin_lock_irq include/linux/spinlock.h:354 [inline] free_ioctx_users+0x2d/0x4a0 fs/aio.c:610 percpu_ref_put_many include/linux/percpu-refcount.h:285 [inline] percpu_ref_put include/linux/percpu-refcount.h:301 [inline] percpu_ref_call_confirm_rcu lib/percpu-refcount.c:123 [inline] percpu_ref_switch_to_atomic_rcu+0x3e7/0x520 lib/percpu-refcount.c:158 __rcu_reclaim kernel/rcu/rcu.h:240 [inline] rcu_do_batch kernel/rcu/tree.c:2452 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2773 [inline] rcu_process_callbacks+0x928/0x1390 kernel/rcu/tree.c:2754 __do_softirq+0x266/0x95a kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x14a/0x570 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 arch_local_irq_enable arch/x86/include/asm/paravirt.h:776 [inline] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] _raw_spin_unlock_irq+0x54/0x90 kernel/locking/spinlock.c:192 spin_unlock_irq include/linux/spinlock.h:379 [inline] ep_poll+0x587/0xe50 fs/eventpoll.c:1858 do_epoll_wait+0x1b3/0x200 fs/eventpoll.c:2216 __do_sys_epoll_wait fs/eventpoll.c:2226 [inline] __se_sys_epoll_wait fs/eventpoll.c:2223 [inline] __x64_sys_epoll_wait+0x97/0xf0 fs/eventpoll.c:2223 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe stack backtrace: CPU: 0 PID: 3867 Comm: udevd Not tainted 5.0.0-rc5 #59 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 print_irq_inversion_bug.part.0+0x2c0/0x2cd kernel/locking/lockdep.c:2556 print_irq_inversion_bug kernel/locking/lockdep.c:2559 [inline] check_usage_forwards.cold+0x20/0x29 kernel/locking/lockdep.c:2581 mark_lock_irq kernel/locking/lockdep.c:2690 [inline] mark_lock+0x427/0x1380 kernel/locking/lockdep.c:3062 mark_irqflags kernel/locking/lockdep.c:2940 [inline] __lock_acquire+0x128f/0x4700 kernel/locking/lockdep.c:3295 lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3841 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:128 [inline] _raw_spin_lock_irq+0x60/0x80 kernel/locking/spinlock.c:160 spin_lock_irq include/linux/spinlock.h:354 [inline] free_ioctx_users+0x2d/0x4a0 fs/aio.c:610 percpu_ref_put_many include/linux/percpu-refcount.h:285 [inline] percpu_ref_put include/linux/percpu-refcount.h:301 [inline] percpu_ref_call_confirm_rcu lib/percpu-refcount.c:123 [inline] percpu_ref_switch_to_atomic_rcu+0x3e7/0x520 lib/percpu-refcount.c:158 __rcu_reclaim kernel/rcu/rcu.h:240 [inline] rcu_do_batch kernel/rcu/tree.c:2452 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2773 [inline] rcu_process_callbacks+0x928/0x1390 kernel/rcu/tree.c:2754 __do_softirq+0x266/0x95a kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x14a/0x570 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline] RIP: 0010:_raw_spin_unlock_irq+0x54/0x90 kernel/locking/spinlock.c:192 Code: c0 00 82 92 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 33 48 83 3d 55 b8 8f 01 00 74 20 fb 66 0f 1f 44 00 00 01 00 00 00 e8 92 e3 4a fa 65 8b 05 0b 24 ff 78 85 c0 74 06 41 RSP: 0018:ffff888098207cc8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff1125040 RBX: ffff888098715138 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880981fcb3c RBP: ffff888098207cd0 R08: ffff8880981fc2c0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888098715100 R13: ffff888098715138 R14: ffff888098715100 R15: 0000000000000001 spin_unlock_irq include/linux/spinlock.h:379 [inline] ep_poll+0x587/0xe50 fs/eventpoll.c:1858 do_epoll_wait+0x1b3/0x200 fs/eventpoll.c:2216 __do_sys_epoll_wait fs/eventpoll.c:2226 [inline] __se_sys_epoll_wait fs/eventpoll.c:2223 [inline] __x64_sys_epoll_wait+0x97/0xf0 fs/eventpoll.c:2223 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f66fa9d4943 Code: 00 31 d2 48 29 c2 64 89 11 48 83 c8 ff eb ea 90 90 90 90 90 90 90 90 83 3d b5 dc 2a 00 00 75 13 49 89 ca b8 e8 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 34 c3 48 83 ec 08 e8 3b c4 00 00 48 89 04 24 RSP: 002b:00007fff105869e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00007f66fa9d4943 RDX: 0000000000000008 RSI: 00007fff10586ae0 RDI: 000000000000000a RBP: 0000000001589fd0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000003 R13: 0000000000000000 R14: 000000000158a430 R15: 000000000157a250 kobject: 'loop3' (00000000b85ac580): kobject_uevent_env kobject: 'loop3' (00000000b85ac580): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (000000005843760c): kobject_uevent_env kobject: 'loop0' (000000005843760c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (000000003ee94acd): kobject_uevent_env kobject: 'loop5' (000000003ee94acd): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (00000000df15fa67): kobject_uevent_env kobject: 'loop1' (00000000df15fa67): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000b85ac580): kobject_uevent_env kobject: 'loop3' (00000000b85ac580): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (000000003ee94acd): kobject_uevent_env kobject: 'loop5' (000000003ee94acd): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (00000000df15fa67): kobject_uevent_env kobject: 'loop1' (00000000df15fa67): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000b85ac580): kobject_uevent_env kobject: 'loop3' (00000000b85ac580): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (000000003ee94acd): kobject_uevent_env kobject: 'loop5' (000000003ee94acd): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000c201ab7b): kobject_uevent_env kobject: 'loop4' (00000000c201ab7b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000000827dd33): kobject_uevent_env kobject: 'loop2' (000000000827dd33): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000c201ab7b): kobject_uevent_env kobject: 'loop4' (00000000c201ab7b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (000000003ee94acd): kobject_uevent_env kobject: 'loop5' (000000003ee94acd): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000b85ac580): kobject_uevent_env kobject: 'loop3' (00000000b85ac580): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (000000000827dd33): kobject_uevent_env kobject: 'loop2' (000000000827dd33): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000df15fa67): kobject_uevent_env kobject: 'loop1' (00000000df15fa67): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000000827dd33): kobject_uevent_env kobject: 'loop2' (000000000827dd33): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (000000005843760c): kobject_uevent_env kobject: 'loop0' (000000005843760c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000c201ab7b): kobject_uevent_env kobject: 'loop4' (00000000c201ab7b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (00000000df15fa67): kobject_uevent_env kobject: 'loop1' (00000000df15fa67): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000000827dd33): kobject_uevent_env kobject: 'loop2' (000000000827dd33): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (000000005843760c): kobject_uevent_env kobject: 'loop0' (000000005843760c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (00000000df15fa67): kobject_uevent_env kobject: 'loop1' (00000000df15fa67): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (000000003ee94acd): kobject_uevent_env kobject: 'loop5' (000000003ee94acd): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (000000005843760c): kobject_uevent_env kobject: 'loop0' (000000005843760c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000c201ab7b): kobject_uevent_env kobject: 'loop4' (00000000c201ab7b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (00000000df15fa67): kobject_uevent_env kobject: 'loop1' (00000000df15fa67): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000b85ac580): kobject_uevent_env kobject: 'loop3' (00000000b85ac580): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (000000003ee94acd): kobject_uevent_env kobject: 'loop5' (000000003ee94acd): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (000000005843760c): kobject_uevent_env kobject: 'loop0' (000000005843760c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (000000000827dd33): kobject_uevent_env kobject: 'loop2' (000000000827dd33): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (000000003ee94acd): kobject_uevent_env kobject: 'loop5' (000000003ee94acd): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (000000005843760c): kobject_uevent_env kobject: 'loop0' (000000005843760c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (000000005843760c): kobject_uevent_env kobject: 'loop0' (000000005843760c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (00000000df15fa67): kobject_uevent_env kobject: 'loop1' (00000000df15fa67): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (00000000c201ab7b): kobject_uevent_env kobject: 'loop4' (00000000c201ab7b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (000000003ee94acd): kobject_uevent_env kobject: 'loop5' (000000003ee94acd): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000b85ac580): kobject_uevent_env kobject: 'loop3' (00000000b85ac580): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (00000000df15fa67): kobject_uevent_env kobject: 'loop1' (00000000df15fa67): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000000827dd33): kobject_uevent_env kobject: 'loop2' (000000000827dd33): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (000000005843760c): kobject_uevent_env kobject: 'loop0' (000000005843760c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (000000000827dd33): kobject_uevent_env kobject: 'loop2' (000000000827dd33): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000c201ab7b): kobject_uevent_env kobject: 'loop4' (00000000c201ab7b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (000000005843760c): kobject_uevent_env kobject: 'loop0' (000000005843760c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (000000003ee94acd): kobject_uevent_env kobject: 'loop5' (000000003ee94acd): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (00000000df15fa67): kobject_uevent_env kobject: 'loop1' (00000000df15fa67): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (00000000c201ab7b): kobject_uevent_env kobject: 'loop4' (00000000c201ab7b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000b85ac580): kobject_uevent_env kobject: 'loop3' (00000000b85ac580): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (000000005843760c): kobject_uevent_env kobject: 'loop0' (000000005843760c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (000000000827dd33): kobject_uevent_env kobject: 'loop2' (000000000827dd33): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000df15fa67): kobject_uevent_env kobject: 'loop1' (00000000df15fa67): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000b85ac580): kobject_uevent_env kobject: 'loop3' (00000000b85ac580): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (00000000df15fa67): kobject_uevent_env kobject: 'loop1' (00000000df15fa67): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (000000005843760c): kobject_uevent_env kobject: 'loop0' (000000005843760c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000c201ab7b): kobject_uevent_env kobject: 'loop4' (00000000c201ab7b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (000000005843760c): kobject_uevent_env kobject: 'loop0' (000000005843760c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000b85ac580): kobject_uevent_env kobject: 'loop3' (00000000b85ac580): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (000000003ee94acd): kobject_uevent_env kobject: 'loop5' (000000003ee94acd): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000b85ac580): kobject_uevent_env kobject: 'loop3' (00000000b85ac580): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (000000005843760c): kobject_uevent_env kobject: 'loop0' (000000005843760c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (000000000827dd33): kobject_uevent_env kobject: 'loop2' (000000000827dd33): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000b85ac580): kobject_uevent_env kobject: 'loop3' (00000000b85ac580): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000c201ab7b): kobject_uevent_env kobject: 'loop4' (00000000c201ab7b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (000000005843760c): kobject_uevent_env kobject: 'loop0' (000000005843760c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (00000000df15fa67): kobject_uevent_env kobject: 'loop1' (00000000df15fa67): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000000827dd33): kobject_uevent_env kobject: 'loop2' (000000000827dd33): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (000000003ee94acd): kobject_uevent_env kobject: 'loop5' (000000003ee94acd): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (00000000df15fa67): kobject_uevent_env kobject: 'loop1' (00000000df15fa67): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000b85ac580): kobject_uevent_env kobject: 'loop3' (00000000b85ac580): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (00000000df15fa67): kobject_uevent_env kobject: 'loop1' (00000000df15fa67): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000000827dd33): kobject_uevent_env kobject: 'loop2' (000000000827dd33): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000df15fa67): kobject_uevent_env kobject: 'loop1' (00000000df15fa67): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000b85ac580): kobject_uevent_env kobject: 'loop3' (00000000b85ac580): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000c201ab7b): kobject_uevent_env kobject: 'loop4' (00000000c201ab7b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (000000005843760c): kobject_uevent_env kobject: 'loop0' (000000005843760c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (00000000df15fa67): kobject_uevent_env kobject: 'loop1' (00000000df15fa67): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000000827dd33): kobject_uevent_env kobject: 'loop2' (000000000827dd33): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (000000003ee94acd): kobject_uevent_env kobject: 'loop5' (000000003ee94acd): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (000000000827dd33): kobject_uevent_env kobject: 'loop2' (000000000827dd33): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (000000005843760c): kobject_uevent_env kobject: 'loop0' (000000005843760c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (00000000df15fa67): kobject_uevent_env kobject: 'loop1' (00000000df15fa67): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (000000005843760c): kobject_uevent_env kobject: 'loop0' (000000005843760c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (000000000827dd33): kobject_uevent_env kobject: 'loop2' (000000000827dd33): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000df15fa67): kobject_uevent_env kobject: 'loop1' (00000000df15fa67): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (00000000c201ab7b): kobject_uevent_env kobject: 'loop4' (00000000c201ab7b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000b85ac580): kobject_uevent_env kobject: 'loop3' (00000000b85ac580): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (000000003ee94acd): kobject_uevent_env kobject: 'loop5' (000000003ee94acd): fill_kobj_path: path = '/devices/virtual/block/loop5' cgroup: fork rejected by pids controller in /syz5 kobject: 'loop3' (00000000b85ac580): kobject_uevent_env kobject: 'loop3' (00000000b85ac580): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (000000000827dd33): kobject_uevent_env kobject: 'loop2' (000000000827dd33): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (000000005843760c): kobject_uevent_env kobject: 'loop0' (000000005843760c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (000000003ee94acd): kobject_uevent_env kobject: 'loop5' (000000003ee94acd): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (000000005843760c): kobject_uevent_env kobject: 'loop0' (000000005843760c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (00000000df15fa67): kobject_uevent_env kobject: 'loop1' (00000000df15fa67): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000000827dd33): kobject_uevent_env kobject: 'loop2' (000000000827dd33): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000b85ac580): kobject_uevent_env kobject: 'loop3' (00000000b85ac580): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (00000000df15fa67): kobject_uevent_env kobject: 'loop1' (00000000df15fa67): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000000827dd33): kobject_uevent_env kobject: 'loop2' (000000000827dd33): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000b85ac580): kobject_uevent_env kobject: 'loop3' (00000000b85ac580): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (00000000df15fa67): kobject_uevent_env kobject: 'loop1' (00000000df15fa67): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (00000000c201ab7b): kobject_uevent_env kobject: 'loop4' (00000000c201ab7b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000000827dd33): kobject_uevent_env kobject: 'loop2' (000000000827dd33): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (000000003ee94acd): kobject_uevent_env kobject: 'loop5' (000000003ee94acd): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (000000005843760c): kobject_uevent_env kobject: 'loop0' (000000005843760c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (000000000827dd33): kobject_uevent_env kobject: 'loop2' (000000000827dd33): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000b85ac580): kobject_uevent_env kobject: 'loop3' (00000000b85ac580): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (00000000df15fa67): kobject_uevent_env kobject: 'loop1' (00000000df15fa67): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (00000000b85ac580): kobject_uevent_env kobject: 'loop3' (00000000b85ac580): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000c201ab7b): kobject_uevent_env kobject: 'loop4' (00000000c201ab7b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (00000000df15fa67): kobject_uevent_env kobject: 'loop1' (00000000df15fa67): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (000000005843760c): kobject_uevent_env kobject: 'loop0' (000000005843760c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000b85ac580): kobject_uevent_env kobject: 'loop3' (00000000b85ac580): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (000000003ee94acd): kobject_uevent_env kobject: 'loop5' (000000003ee94acd): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (000000005843760c): kobject_uevent_env kobject: 'loop0' (000000005843760c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000c201ab7b): kobject_uevent_env kobject: 'loop4' (00000000c201ab7b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000000827dd33): kobject_uevent_env kobject: 'loop2' (000000000827dd33): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000b85ac580): kobject_uevent_env kobject: 'loop3' (00000000b85ac580): fill_kobj_path: path = '/devices/virtual/block/loop3'