===================================================== WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected 4.19.0-rc2+ #228 Not tainted ----------------------------------------------------- syz-executor3/15148 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire: 00000000fdfef22b (&ctx->fd_wqh){+.+.}, at: spin_lock include/linux/spinlock.h:329 [inline] 00000000fdfef22b (&ctx->fd_wqh){+.+.}, at: aio_poll+0x760/0x1420 fs/aio.c:1747 and this task is already holding: kobject: 'loop2' (00000000b642b28e): kobject_uevent_env 0000000040c481bc (&(&ctx->ctx_lock)->rlock){..-.}, at: spin_lock_irq include/linux/spinlock.h:354 [inline] 0000000040c481bc (&(&ctx->ctx_lock)->rlock){..-.}, at: aio_poll+0x738/0x1420 fs/aio.c:1746 which would create a new lock dependency: (&(&ctx->ctx_lock)->rlock){..-.} -> ( kobject: 'loop2' (00000000b642b28e): fill_kobj_path: path = '/devices/virtual/block/loop2' &ctx->fd_wqh){+.+.} but this new dependency connects a SOFTIRQ-irq-safe lock: (&(&ctx->ctx_lock)->rlock){..-.} ... which became SOFTIRQ-irq-safe at: lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3901 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:128 [inline] _raw_spin_lock_irq+0x61/0x80 kernel/locking/spinlock.c:160 spin_lock_irq include/linux/spinlock.h:354 [inline] free_ioctx_users+0xbc/0x710 fs/aio.c:603 percpu_ref_put_many include/linux/percpu-refcount.h:284 [inline] percpu_ref_put include/linux/percpu-refcount.h:300 [inline] percpu_ref_call_confirm_rcu lib/percpu-refcount.c:123 [inline] percpu_ref_switch_to_atomic_rcu+0x62c/0x820 lib/percpu-refcount.c:158 __rcu_reclaim kernel/rcu/rcu.h:236 [inline] rcu_do_batch kernel/rcu/tree.c:2576 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2880 [inline] __rcu_process_callbacks kernel/rcu/tree.c:2847 [inline] rcu_process_callbacks+0xf23/0x2670 kernel/rcu/tree.c:2864 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 arch_local_irq_enable arch/x86/include/asm/paravirt.h:798 [inline] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] _raw_spin_unlock_irq+0x56/0x80 kernel/locking/spinlock.c:192 finish_lock_switch kernel/sched/core.c:2575 [inline] finish_task_switch+0x1f5/0x900 kernel/sched/core.c:2675 context_switch kernel/sched/core.c:2828 [inline] __schedule+0x874/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 freezable_schedule include/linux/freezer.h:172 [inline] do_nanosleep+0x21e/0x750 kernel/time/hrtimer.c:1688 hrtimer_nanosleep+0x2d4/0x620 kernel/time/hrtimer.c:1742 __do_sys_nanosleep kernel/time/hrtimer.c:1776 [inline] __se_sys_nanosleep kernel/time/hrtimer.c:1763 [inline] __x64_sys_nanosleep+0x1e7/0x280 kernel/time/hrtimer.c:1763 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe to a SOFTIRQ-irq-unsafe lock: (&ctx->fd_wqh){+.+.} ... which became SOFTIRQ-irq-unsafe at: ... lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3901 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2d/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:329 [inline] userfaultfd_ctx_read+0x2e4/0x2180 fs/userfaultfd.c:1029 userfaultfd_read+0x1e2/0x2c0 fs/userfaultfd.c:1191 __vfs_read+0x117/0x9b0 fs/read_write.c:416 vfs_read+0x17f/0x3c0 fs/read_write.c:452 ksys_read+0x101/0x260 fs/read_write.c:578 __do_sys_read fs/read_write.c:588 [inline] __se_sys_read fs/read_write.c:586 [inline] __x64_sys_read+0x73/0xb0 fs/read_write.c:586 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe other info that might help us debug this: Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ctx->fd_wqh); local_irq_disable(); lock(&(&ctx->ctx_lock)->rlock); lock(&ctx->fd_wqh); lock(&(&ctx->ctx_lock)->rlock); *** DEADLOCK *** 1 lock held by syz-executor3/15148: #0: 0000000040c481bc (&(&ctx->ctx_lock)->rlock){..-.}, at: spin_lock_irq include/linux/spinlock.h:354 [inline] #0: 0000000040c481bc (&(&ctx->ctx_lock)->rlock){..-.}, at: aio_poll+0x738/0x1420 fs/aio.c:1746 the dependencies between SOFTIRQ-irq-safe lock and the holding lock: -> (&(&ctx->ctx_lock)->rlock){..-.} ops: 5902 { IN-SOFTIRQ-W at: kobject: 'loop7' (0000000046dc0372): kobject_uevent_env lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3901 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:128 [inline] _raw_spin_lock_irq+0x61/0x80 kernel/locking/spinlock.c:160 spin_lock_irq include/linux/spinlock.h:354 [inline] free_ioctx_users+0xbc/0x710 fs/aio.c:603 percpu_ref_put_many include/linux/percpu-refcount.h:284 [inline] percpu_ref_put include/linux/percpu-refcount.h:300 [inline] percpu_ref_call_confirm_rcu lib/percpu-refcount.c:123 [inline] percpu_ref_switch_to_atomic_rcu+0x62c/0x820 lib/percpu-refcount.c:158 kobject: 'loop7' (0000000046dc0372): fill_kobj_path: path = '/devices/virtual/block/loop7' __rcu_reclaim kernel/rcu/rcu.h:236 [inline] rcu_do_batch kernel/rcu/tree.c:2576 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2880 [inline] __rcu_process_callbacks kernel/rcu/tree.c:2847 [inline] rcu_process_callbacks+0xf23/0x2670 kernel/rcu/tree.c:2864 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 arch_local_irq_enable arch/x86/include/asm/paravirt.h:798 [inline] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] _raw_spin_unlock_irq+0x56/0x80 kernel/locking/spinlock.c:192 finish_lock_switch kernel/sched/core.c:2575 [inline] finish_task_switch+0x1f5/0x900 kernel/sched/core.c:2675 context_switch kernel/sched/core.c:2828 [inline] __schedule+0x874/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 freezable_schedule include/linux/freezer.h:172 [inline] do_nanosleep+0x21e/0x750 kernel/time/hrtimer.c:1688 hrtimer_nanosleep+0x2d4/0x620 kernel/time/hrtimer.c:1742 __do_sys_nanosleep kernel/time/hrtimer.c:1776 [inline] __se_sys_nanosleep kernel/time/hrtimer.c:1763 [inline] __x64_sys_nanosleep+0x1e7/0x280 kernel/time/hrtimer.c:1763 kobject: 'loop4' (00000000822e2a33): kobject_uevent_env do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe INITIAL USE at: kobject: 'loop4' (00000000822e2a33): fill_kobj_path: path = '/devices/virtual/block/loop4' lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3901 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:128 [inline] _raw_spin_lock_irq+0x61/0x80 kernel/locking/spinlock.c:160 spin_lock_irq include/linux/spinlock.h:354 [inline] free_ioctx_users+0xbc/0x710 fs/aio.c:603 percpu_ref_put_many include/linux/percpu-refcount.h:284 [inline] percpu_ref_put include/linux/percpu-refcount.h:300 [inline] percpu_ref_call_confirm_rcu lib/percpu-refcount.c:123 [inline] percpu_ref_switch_to_atomic_rcu+0x62c/0x820 lib/percpu-refcount.c:158 __rcu_reclaim kernel/rcu/rcu.h:236 [inline] rcu_do_batch kernel/rcu/tree.c:2576 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2880 [inline] __rcu_process_callbacks kernel/rcu/tree.c:2847 [inline] rcu_process_callbacks+0xf23/0x2670 kernel/rcu/tree.c:2864 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864 arch_local_irq_enable arch/x86/include/asm/paravirt.h:798 [inline] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] _raw_spin_unlock_irq+0x56/0x80 kernel/locking/spinlock.c:192 finish_lock_switch kernel/sched/core.c:2575 [inline] finish_task_switch+0x1f5/0x900 kernel/sched/core.c:2675 context_switch kernel/sched/core.c:2828 [inline] __schedule+0x874/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 freezable_schedule include/linux/freezer.h:172 [inline] do_nanosleep+0x21e/0x750 kernel/time/hrtimer.c:1688 hrtimer_nanosleep+0x2d4/0x620 kernel/time/hrtimer.c:1742 __do_sys_nanosleep kernel/time/hrtimer.c:1776 [inline] __se_sys_nanosleep kernel/time/hrtimer.c:1763 [inline] __x64_sys_nanosleep+0x1e7/0x280 kernel/time/hrtimer.c:1763 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe } ... key at: [] __key.50120+0x0/0x40 ... acquired at: lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3901 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2d/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:329 [inline] aio_poll+0x760/0x1420 fs/aio.c:1747 io_submit_one+0xab8/0x1090 fs/aio.c:1850 __do_sys_io_submit fs/aio.c:1916 [inline] __se_sys_io_submit fs/aio.c:1887 [inline] __x64_sys_io_submit+0x1b9/0x5d0 fs/aio.c:1887 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe the dependencies between the lock to be acquired and SOFTIRQ-irq-unsafe lock: -> (&ctx->fd_wqh){+.+.} ops: 2148 { HARDIRQ-ON-W at: lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3901 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2d/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:329 [inline] userfaultfd_ctx_read+0x2e4/0x2180 fs/userfaultfd.c:1029 userfaultfd_read+0x1e2/0x2c0 fs/userfaultfd.c:1191 __vfs_read+0x117/0x9b0 fs/read_write.c:416 vfs_read+0x17f/0x3c0 fs/read_write.c:452 ksys_read+0x101/0x260 fs/read_write.c:578 __do_sys_read fs/read_write.c:588 [inline] __se_sys_read fs/read_write.c:586 [inline] __x64_sys_read+0x73/0xb0 fs/read_write.c:586 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe SOFTIRQ-ON-W at: lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3901 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2d/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:329 [inline] userfaultfd_ctx_read+0x2e4/0x2180 fs/userfaultfd.c:1029 userfaultfd_read+0x1e2/0x2c0 fs/userfaultfd.c:1191 __vfs_read+0x117/0x9b0 fs/read_write.c:416 vfs_read+0x17f/0x3c0 fs/read_write.c:452 ksys_read+0x101/0x260 fs/read_write.c:578 __do_sys_read fs/read_write.c:588 [inline] __se_sys_read fs/read_write.c:586 [inline] __x64_sys_read+0x73/0xb0 fs/read_write.c:586 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe INITIAL USE at: lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3901 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x99/0xd0 kernel/locking/spinlock.c:152 __wake_up_common_lock+0x19e/0x330 kernel/sched/wait.c:120 __wake_up+0xe/0x10 kernel/sched/wait.c:145 userfaultfd_release+0x69c/0x8d0 fs/userfaultfd.c:917 __fput+0x385/0xa30 fs/file_table.c:278 ____fput+0x15/0x20 fs/file_table.c:309 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x318/0x380 arch/x86/entry/common.c:166 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293 kobject: 'loop7' (0000000046dc0372): kobject_uevent_env entry_SYSCALL_64_after_hwframe+0x49/0xbe } ... key at: [] __key.43670+0x0/0x40 ... acquired at: lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3901 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2d/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:329 [inline] aio_poll+0x760/0x1420 fs/aio.c:1747 kobject: 'loop7' (0000000046dc0372): fill_kobj_path: path = '/devices/virtual/block/loop7' io_submit_one+0xab8/0x1090 fs/aio.c:1850 __do_sys_io_submit fs/aio.c:1916 [inline] __se_sys_io_submit fs/aio.c:1887 [inline] __x64_sys_io_submit+0x1b9/0x5d0 fs/aio.c:1887 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe stack backtrace: CPU: 0 PID: 15148 Comm: syz-executor3 Not tainted 4.19.0-rc2+ #228 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+0x1c4/0x2b4 lib/dump_stack.c:113 kobject: 'loop4' (00000000822e2a33): kobject_uevent_env print_bad_irq_dependency kernel/locking/lockdep.c:1569 [inline] check_usage.cold.58+0x6d5/0xad1 kernel/locking/lockdep.c:1601 kobject: 'loop4' (00000000822e2a33): fill_kobj_path: path = '/devices/virtual/block/loop4' check_irq_usage kernel/locking/lockdep.c:1657 [inline] check_prev_add_irq kernel/locking/lockdep_states.h:8 [inline] check_prev_add kernel/locking/lockdep.c:1867 [inline] check_prevs_add kernel/locking/lockdep.c:1975 [inline] validate_chain kernel/locking/lockdep.c:2416 [inline] __lock_acquire+0x2400/0x4ec0 kernel/locking/lockdep.c:3412 lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3901 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2d/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:329 [inline] aio_poll+0x760/0x1420 fs/aio.c:1747 kobject: 'loop7' (0000000046dc0372): kobject_uevent_env kobject: 'loop7' (0000000046dc0372): fill_kobj_path: path = '/devices/virtual/block/loop7' io_submit_one+0xab8/0x1090 fs/aio.c:1850 kobject: 'loop0' (00000000ce9db301): kobject_uevent_env kobject: 'loop0' (00000000ce9db301): fill_kobj_path: path = '/devices/virtual/block/loop0' __do_sys_io_submit fs/aio.c:1916 [inline] __se_sys_io_submit fs/aio.c:1887 [inline] __x64_sys_io_submit+0x1b9/0x5d0 fs/aio.c:1887 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457099 Code: fd b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ff7001c2c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007ff7001c36d4 RCX: 0000000000457099 RDX: 0000000020000b00 RSI: 0000000000000001 RDI: 00007ff7001a2000 RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004cd990 R14: 00000000004c40a7 R15: 0000000000000000 kobject: 'loop5' (00000000206a1ec5): kobject_uevent_env kobject: 'loop5' (00000000206a1ec5): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop6' (00000000bd0d3d43): kobject_uevent_env kobject: 'loop6' (00000000bd0d3d43): fill_kobj_path: path = '/devices/virtual/block/loop6' kobject: 'loop1' (000000006d511446): kobject_uevent_env kobject: 'loop1' (000000006d511446): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000b642b28e): kobject_uevent_env kobject: 'loop2' (00000000b642b28e): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000949c8946): kobject_uevent_env kobject: 'loop3' (00000000949c8946): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000206a1ec5): kobject_uevent_env kobject: 'loop5' (00000000206a1ec5): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (00000000ce9db301): kobject_uevent_env kobject: 'loop0' (00000000ce9db301): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000949c8946): kobject_uevent_env kobject: 'loop3' (00000000949c8946): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop6' (00000000bd0d3d43): kobject_uevent_env kobject: 'loop6' (00000000bd0d3d43): fill_kobj_path: path = '/devices/virtual/block/loop6' kobject: 'loop0' (00000000ce9db301): kobject_uevent_env kobject: 'loop0' (00000000ce9db301): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000206a1ec5): kobject_uevent_env kobject: 'loop5' (00000000206a1ec5): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop6' (00000000bd0d3d43): kobject_uevent_env kobject: 'loop6' (00000000bd0d3d43): fill_kobj_path: path = '/devices/virtual/block/loop6' kobject: 'loop2' (00000000b642b28e): kobject_uevent_env kobject: 'loop2' (00000000b642b28e): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000ce9db301): kobject_uevent_env kobject: 'loop0' (00000000ce9db301): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop7' (0000000046dc0372): kobject_uevent_env kobject: 'loop7' (0000000046dc0372): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop5' (00000000206a1ec5): kobject_uevent_env kobject: 'loop5' (00000000206a1ec5): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000822e2a33): kobject_uevent_env kobject: 'loop4' (00000000822e2a33): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop4' (00000000822e2a33): kobject_uevent_env kobject: 'loop4' (00000000822e2a33): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (000000006d511446): kobject_uevent_env kobject: 'loop1' (000000006d511446): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (00000000206a1ec5): kobject_uevent_env kobject: 'loop5' (00000000206a1ec5): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (00000000ce9db301): kobject_uevent_env kobject: 'loop0' (00000000ce9db301): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000949c8946): kobject_uevent_env kobject: 'loop3' (00000000949c8946): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (00000000b642b28e): kobject_uevent_env kobject: 'loop2' (00000000b642b28e): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop6' (00000000bd0d3d43): kobject_uevent_env kobject: 'loop6' (00000000bd0d3d43): fill_kobj_path: path = '/devices/virtual/block/loop6' kobject: 'loop5' (00000000206a1ec5): kobject_uevent_env kobject: 'loop5' (00000000206a1ec5): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (00000000ce9db301): kobject_uevent_env kobject: 'loop0' (00000000ce9db301): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop7' (0000000046dc0372): kobject_uevent_env kobject: 'loop7' (0000000046dc0372): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop0' (00000000ce9db301): kobject_uevent_env kobject: 'loop0' (00000000ce9db301): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000206a1ec5): kobject_uevent_env kobject: 'loop5' (00000000206a1ec5): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000822e2a33): kobject_uevent_env kobject: 'loop4' (00000000822e2a33): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000949c8946): kobject_uevent_env kobject: 'loop3' (00000000949c8946): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop7' (0000000046dc0372): kobject_uevent_env kobject: 'loop7' (0000000046dc0372): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop1' (000000006d511446): kobject_uevent_env kobject: 'loop1' (000000006d511446): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop6' (00000000bd0d3d43): kobject_uevent_env kobject: 'loop6' (00000000bd0d3d43): fill_kobj_path: path = '/devices/virtual/block/loop6' kobject: 'loop0' (00000000ce9db301): kobject_uevent_env kobject: 'loop0' (00000000ce9db301): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000206a1ec5): kobject_uevent_env kobject: 'loop5' (00000000206a1ec5): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000949c8946): kobject_uevent_env kobject: 'loop3' (00000000949c8946): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (00000000b642b28e): kobject_uevent_env kobject: 'loop2' (00000000b642b28e): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000949c8946): kobject_uevent_env kobject: 'loop3' (00000000949c8946): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000206a1ec5): kobject_uevent_env kobject: 'loop5' (00000000206a1ec5): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (00000000b642b28e): kobject_uevent_env kobject: 'loop2' (00000000b642b28e): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000949c8946): kobject_uevent_env kobject: 'loop3' (00000000949c8946): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000822e2a33): kobject_uevent_env kobject: 'loop4' (00000000822e2a33): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop7' (0000000046dc0372): kobject_uevent_env kobject: 'loop7' (0000000046dc0372): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop5' (00000000206a1ec5): kobject_uevent_env kobject: 'loop5' (00000000206a1ec5): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (00000000b642b28e): kobject_uevent_env kobject: 'loop2' (00000000b642b28e): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop6' (00000000bd0d3d43): kobject_uevent_env kobject: 'loop6' (00000000bd0d3d43): fill_kobj_path: path = '/devices/virtual/block/loop6' kobject: 'loop1' (000000006d511446): kobject_uevent_env kobject: 'loop1' (000000006d511446): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (00000000206a1ec5): kobject_uevent_env kobject: 'loop5' (00000000206a1ec5): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000949c8946): kobject_uevent_env kobject: 'loop3' (00000000949c8946): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000ce9db301): kobject_uevent_env kobject: 'loop0' (00000000ce9db301): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (000000006d511446): kobject_uevent_env kobject: 'loop1' (000000006d511446): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000b642b28e): kobject_uevent_env kobject: 'loop2' (00000000b642b28e): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000ce9db301): kobject_uevent_env kobject: 'loop0' (00000000ce9db301): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (00000000b642b28e): kobject_uevent_env kobject: 'loop2' (00000000b642b28e): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000822e2a33): kobject_uevent_env kobject: 'loop4' (00000000822e2a33): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop7' (0000000046dc0372): kobject_uevent_env kobject: 'loop7' (0000000046dc0372): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop0' (00000000ce9db301): kobject_uevent_env kobject: 'loop0' (00000000ce9db301): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (000000006d511446): kobject_uevent_env kobject: 'loop1' (000000006d511446): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (00000000206a1ec5): kobject_uevent_env kobject: 'loop5' (00000000206a1ec5): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (00000000b642b28e): kobject_uevent_env kobject: 'loop2' (00000000b642b28e): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000ce9db301): kobject_uevent_env kobject: 'loop0' (00000000ce9db301): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000206a1ec5): kobject_uevent_env kobject: 'loop5' (00000000206a1ec5): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000949c8946): kobject_uevent_env kobject: 'loop3' (00000000949c8946): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (000000006d511446): kobject_uevent_env kobject: 'loop1' (000000006d511446): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop6' (00000000bd0d3d43): kobject_uevent_env kobject: 'loop6' (00000000bd0d3d43): fill_kobj_path: path = '/devices/virtual/block/loop6' kobject: 'loop4' (00000000822e2a33): kobject_uevent_env kobject: 'loop4' (00000000822e2a33): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop7' (0000000046dc0372): kobject_uevent_env kobject: 'loop7' (0000000046dc0372): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop2' (00000000b642b28e): kobject_uevent_env kobject: 'loop2' (00000000b642b28e): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000ce9db301): kobject_uevent_env kobject: 'loop0' (00000000ce9db301): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000206a1ec5): kobject_uevent_env kobject: 'loop5' (00000000206a1ec5): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000949c8946): kobject_uevent_env kobject: 'loop3' (00000000949c8946): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (00000000b642b28e): kobject_uevent_env kobject: 'loop2' (00000000b642b28e): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000ce9db301): kobject_uevent_env kobject: 'loop0' (00000000ce9db301): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000206a1ec5): kobject_uevent_env kobject: 'loop5' (00000000206a1ec5): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000949c8946): kobject_uevent_env kobject: 'loop3' (00000000949c8946): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (00000000b642b28e): kobject_uevent_env kobject: 'loop2' (00000000b642b28e): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000ce9db301): kobject_uevent_env kobject: 'loop0' (00000000ce9db301): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000206a1ec5): kobject_uevent_env kobject: 'loop5' (00000000206a1ec5): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop7' (0000000046dc0372): kobject_uevent_env kobject: 'loop7' (0000000046dc0372): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop4' (00000000822e2a33): kobject_uevent_env kobject: 'loop4' (00000000822e2a33): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000949c8946): kobject_uevent_env kobject: 'loop3' (00000000949c8946): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000206a1ec5): kobject_uevent_env kobject: 'loop5' (00000000206a1ec5): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (00000000b642b28e): kobject_uevent_env kobject: 'loop2' (00000000b642b28e): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000ce9db301): kobject_uevent_env kobject: 'loop0' (00000000ce9db301): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000949c8946): kobject_uevent_env kobject: 'loop3' (00000000949c8946): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000206a1ec5): kobject_uevent_env kobject: 'loop5' (00000000206a1ec5): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop7' (0000000046dc0372): kobject_uevent_env kobject: 'loop7' (0000000046dc0372): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop4' (00000000822e2a33): kobject_uevent_env kobject: 'loop4' (00000000822e2a33): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (000000006d511446): kobject_uevent_env kobject: 'loop1' (000000006d511446): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop6' (00000000bd0d3d43): kobject_uevent_env kobject: 'loop6' (00000000bd0d3d43): fill_kobj_path: path = '/devices/virtual/block/loop6' kobject: 'loop5' (00000000206a1ec5): kobject_uevent_env kobject: 'loop5' (00000000206a1ec5): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (00000000ce9db301): kobject_uevent_env kobject: 'loop0' (00000000ce9db301): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000949c8946): kobject_uevent_env kobject: 'loop3' (00000000949c8946): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop6' (00000000bd0d3d43): kobject_uevent_env kobject: 'loop6' (00000000bd0d3d43): fill_kobj_path: path = '/devices/virtual/block/loop6' kobject: 'loop2' (00000000b642b28e): kobject_uevent_env kobject: 'loop2' (00000000b642b28e): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (00000000206a1ec5): kobject_uevent_env kobject: 'loop5' (00000000206a1ec5): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop6' (00000000bd0d3d43): kobject_uevent_env kobject: 'loop6' (00000000bd0d3d43): fill_kobj_path: path = '/devices/virtual/block/loop6' kobject: 'loop2' (00000000b642b28e): kobject_uevent_env kobject: 'loop2' (00000000b642b28e): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000ce9db301): kobject_uevent_env kobject: 'loop0' (00000000ce9db301): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop7' (0000000046dc0372): kobject_uevent_env kobject: 'loop7' (0000000046dc0372): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop5' (00000000206a1ec5): kobject_uevent_env kobject: 'loop5' (00000000206a1ec5): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop6' (00000000bd0d3d43): kobject_uevent_env kobject: 'loop6' (00000000bd0d3d43): fill_kobj_path: path = '/devices/virtual/block/loop6' kobject: 'loop4' (00000000822e2a33): kobject_uevent_env kobject: 'loop4' (00000000822e2a33): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (00000000ce9db301): kobject_uevent_env kobject: 'loop0' (00000000ce9db301): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000949c8946): kobject_uevent_env kobject: 'loop3' (00000000949c8946): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000206a1ec5): kobject_uevent_env kobject: 'loop5' (00000000206a1ec5): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (00000000b642b28e): kobject_uevent_env kobject: 'loop2' (00000000b642b28e): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000822e2a33): kobject_uevent_env kobject: 'loop4' (00000000822e2a33): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (000000006d511446): kobject_uevent_env kobject: 'loop1' (000000006d511446): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop7' (0000000046dc0372): kobject_uevent_env kobject: 'loop7' (0000000046dc0372): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop5' (00000000206a1ec5): kobject_uevent_env kobject: 'loop5' (00000000206a1ec5): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (00000000ce9db301): kobject_uevent_env kobject: 'loop0' (00000000ce9db301): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000949c8946): kobject_uevent_env kobject: 'loop3' (00000000949c8946): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000206a1ec5): kobject_uevent_env kobject: 'loop5' (00000000206a1ec5): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (00000000ce9db301): kobject_uevent_env kobject: 'loop0' (00000000ce9db301): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000949c8946): kobject_uevent_env kobject: 'loop3' (00000000949c8946): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000206a1ec5): kobject_uevent_env kobject: 'loop5' (00000000206a1ec5): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000822e2a33): kobject_uevent_env kobject: 'loop4' (00000000822e2a33): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (00000000ce9db301): kobject_uevent_env kobject: 'loop0' (00000000ce9db301): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop7' (0000000046dc0372): kobject_uevent_env kobject: 'loop7' (0000000046dc0372): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop3' (00000000949c8946): kobject_uevent_env kobject: 'loop3' (00000000949c8946): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop6' (00000000bd0d3d43): kobject_uevent_env kobject: 'loop6' (00000000bd0d3d43): fill_kobj_path: path = '/devices/virtual/block/loop6' kobject: 'loop1' (000000006d511446): kobject_uevent_env kobject: 'loop1' (000000006d511446): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (00000000b642b28e): kobject_uevent_env kobject: 'loop2' (00000000b642b28e): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (00000000206a1ec5): kobject_uevent_env kobject: 'loop5' (00000000206a1ec5): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000949c8946): kobject_uevent_env kobject: 'loop3' (00000000949c8946): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (00000000b642b28e): kobject_uevent_env kobject: 'loop2' (00000000b642b28e): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop6' (00000000bd0d3d43): kobject_uevent_env kobject: 'loop6' (00000000bd0d3d43): fill_kobj_path: path = '/devices/virtual/block/loop6' kobject: 'loop0' (00000000ce9db301): kobject_uevent_env kobject: 'loop0' (00000000ce9db301): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000822e2a33): kobject_uevent_env kobject: 'loop4' (00000000822e2a33): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (00000000206a1ec5): kobject_uevent_env kobject: 'loop5' (00000000206a1ec5): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (00000000949c8946): kobject_uevent_env kobject: 'loop3' (00000000949c8946): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop7' (0000000046dc0372): kobject_uevent_env kobject: 'loop7' (0000000046dc0372): fill_kobj_path: path = '/devices/virtual/block/loop7' kobject: 'loop1' (000000006d511446): kobject_uevent_env