copy_process kernel/fork.c:1710 [inline] _do_fork+0x257/0xfe0 kernel/fork.c:2227 ====================================================== __do_sys_clone kernel/fork.c:2334 [inline] __se_sys_clone kernel/fork.c:2328 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2328 WARNING: possible circular locking dependency detected do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 5.0.0-rc8+ #3 Not tainted entry_SYSCALL_64_after_hwframe+0x49/0xbe ------------------------------------------------------ RIP: 0033:0x457e29 syz-executor.1/8373 is trying to acquire lock: Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 000000009fddf619 (&p->lock){+.+.}, at: seq_read+0x71/0x1130 fs/seq_file.c:161 RSP: 002b:00007fd6c36acc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 but task is already holding lock: RAX: ffffffffffffffda RBX: 00007fd6c36acc90 RCX: 0000000000457e29 00000000be274b04 (&pipe->mutex/1){+.+.}, at: pipe_lock_nested fs/pipe.c:62 [inline] 00000000be274b04 (&pipe->mutex/1){+.+.}, at: pipe_lock+0x6e/0x80 fs/pipe.c:70 RDX: 9999999999999999 RSI: 0000000000000000 RDI: 0000000000902100 which lock already depends on the new lock. RBP: 000000000073bfa0 R08: ffffffffffffffff R09: 0000000000000000 the existing dependency chain (in reverse order) is: R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd6c36ad6d4 -> #2 (&pipe->mutex/1){+.+.}: R13: 00000000004be1d9 R14: 00000000004ce8e0 R15: 0000000000000004 __mutex_lock_common kernel/locking/mutex.c:925 [inline] __mutex_lock+0xf7/0x1310 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 __pipe_lock fs/pipe.c:83 [inline] fifo_open+0x159/0xb00 fs/pipe.c:905 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_open_execat+0x13b/0x6d0 fs/exec.c:856 __do_execve_file.isra.0+0x178d/0x23f0 fs/exec.c:1758 do_execveat_common fs/exec.c:1865 [inline] do_execve fs/exec.c:1882 [inline] __do_sys_execve fs/exec.c:1963 [inline] __se_sys_execve fs/exec.c:1958 [inline] __x64_sys_execve+0x8f/0xc0 fs/exec.c:1958 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #1 (&sig->cred_guard_mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:925 [inline] __mutex_lock+0xf7/0x1310 kernel/locking/mutex.c:1072 mutex_lock_killable_nested+0x16/0x20 kernel/locking/mutex.c:1102 do_io_accounting+0x1f4/0x830 fs/proc/base.c:2707 proc_tgid_io_accounting+0x23/0x30 fs/proc/base.c:2756 proc_single_show+0xf6/0x180 fs/proc/base.c:739 seq_read+0x4db/0x1130 fs/seq_file.c:229 do_loop_readv_writev fs/read_write.c:700 [inline] do_loop_readv_writev fs/read_write.c:687 [inline] do_iter_read+0x4a9/0x660 fs/read_write.c:921 vfs_readv+0xf0/0x160 fs/read_write.c:983 do_preadv+0x1c4/0x280 fs/read_write.c:1067 __do_sys_preadv fs/read_write.c:1117 [inline] __se_sys_preadv fs/read_write.c:1112 [inline] __x64_sys_preadv+0x9a/0xf0 fs/read_write.c:1112 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #0 (&p->lock){+.+.}: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3841 __mutex_lock_common kernel/locking/mutex.c:925 [inline] __mutex_lock+0xf7/0x1310 kernel/locking/mutex.c:1072 kobject: 'loop3' (0000000025bb45b8): kobject_uevent_env mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 seq_read+0x71/0x1130 fs/seq_file.c:161 proc_reg_read+0x1fa/0x2c0 fs/proc/inode.c:229 do_loop_readv_writev fs/read_write.c:700 [inline] do_loop_readv_writev fs/read_write.c:687 [inline] do_iter_read+0x4a9/0x660 fs/read_write.c:921 vfs_readv+0xf0/0x160 fs/read_write.c:983 kobject: 'loop3' (0000000025bb45b8): fill_kobj_path: path = '/devices/virtual/block/loop3' kernel_readv fs/splice.c:362 [inline] default_file_splice_read+0x475/0x890 fs/splice.c:417 do_splice_to+0x12a/0x190 fs/splice.c:880 do_splice+0xf7c/0x1330 fs/splice.c:1178 __do_sys_splice fs/splice.c:1419 [inline] __se_sys_splice fs/splice.c:1399 [inline] __x64_sys_splice+0x2c6/0x330 fs/splice.c:1399 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe other info that might help us debug this: Chain exists of: &p->lock --> &sig->cred_guard_mutex --> &pipe->mutex/1 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&pipe->mutex/1); lock(&sig->cred_guard_mutex); kobject: 'loop0' (00000000c0ffeee7): kobject_uevent_env lock(&pipe->mutex/1); lock(&p->lock); *** DEADLOCK *** 1 lock held by syz-executor.1/8373: kobject: 'loop0' (00000000c0ffeee7): fill_kobj_path: path = '/devices/virtual/block/loop0' #0: 00000000be274b04 (&pipe->mutex/1){+.+.}, at: pipe_lock_nested fs/pipe.c:62 [inline] #0: 00000000be274b04 (&pipe->mutex/1){+.+.}, at: pipe_lock+0x6e/0x80 fs/pipe.c:70 stack backtrace: kobject: 'loop2' (0000000073240487): kobject_uevent_env CPU: 0 PID: 8373 Comm: syz-executor.1 Not tainted 5.0.0-rc8+ #3 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: kobject: 'loop2' (0000000073240487): fill_kobj_path: path = '/devices/virtual/block/loop2' __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 print_circular_bug.isra.0.cold+0x1cc/0x28f kernel/locking/lockdep.c:1224 check_prev_add kernel/locking/lockdep.c:1866 [inline] check_prevs_add kernel/locking/lockdep.c:1979 [inline] validate_chain kernel/locking/lockdep.c:2350 [inline] __lock_acquire+0x2f00/0x4700 kernel/locking/lockdep.c:3338 kobject: 'loop4' (000000008ec17c4f): kobject_uevent_env FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop4' (000000008ec17c4f): fill_kobj_path: path = '/devices/virtual/block/loop4' lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3841 __mutex_lock_common kernel/locking/mutex.c:925 [inline] __mutex_lock+0xf7/0x1310 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 seq_read+0x71/0x1130 fs/seq_file.c:161 proc_reg_read+0x1fa/0x2c0 fs/proc/inode.c:229 do_loop_readv_writev fs/read_write.c:700 [inline] do_loop_readv_writev fs/read_write.c:687 [inline] do_iter_read+0x4a9/0x660 fs/read_write.c:921 vfs_readv+0xf0/0x160 fs/read_write.c:983 kernel_readv fs/splice.c:362 [inline] default_file_splice_read+0x475/0x890 fs/splice.c:417 do_splice_to+0x12a/0x190 fs/splice.c:880 do_splice+0xf7c/0x1330 fs/splice.c:1178 __do_sys_splice fs/splice.c:1419 [inline] __se_sys_splice fs/splice.c:1399 [inline] __x64_sys_splice+0x2c6/0x330 fs/splice.c:1399 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e29 Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f4538ea0c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000457e29 RDX: 0000000000000007 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 000000000073bf00 R08: 0000000000008ec1 R09: 0000000000000006 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4538ea16d4 R13: 00000000004c6c75 R14: 00000000004db870 R15: 00000000ffffffff CPU: 0 PID: 8386 Comm: syz-executor.3 Not tainted 5.0.0-rc8+ #3 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 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 kobject: 'loop5' (00000000fc76bc00): kobject_uevent_env __should_failslab+0x121/0x190 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1604 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3374 [inline] kmem_cache_alloc+0x2b2/0x6f0 mm/slab.c:3548 kobject: 'loop5' (00000000fc76bc00): fill_kobj_path: path = '/devices/virtual/block/loop5' copy_sighand kernel/fork.c:1469 [inline] copy_process.part.0+0x1fff/0x79a0 kernel/fork.c:1911 kobject: 'loop2' (0000000073240487): kobject_uevent_env copy_process kernel/fork.c:1710 [inline] _do_fork+0x257/0xfe0 kernel/fork.c:2227 kobject: 'loop2' (0000000073240487): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000c0ffeee7): kobject_uevent_env __do_sys_clone kernel/fork.c:2334 [inline] __se_sys_clone kernel/fork.c:2328 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2328 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 kobject: 'loop0' (00000000c0ffeee7): fill_kobj_path: path = '/devices/virtual/block/loop0' entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e29 Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fd6c36cdc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fd6c36cdc90 RCX: 0000000000457e29 RDX: 9999999999999999 RSI: 0000000000000000 RDI: 0000000000902100 RBP: 000000000073bf00 R08: ffffffffffffffff R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd6c36ce6d4 R13: 00000000004be1d9 R14: 00000000004ce8e0 R15: 0000000000000003 kobject: 'loop2' (0000000073240487): kobject_uevent_env kobject: 'loop2' (0000000073240487): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000c0ffeee7): kobject_uevent_env kobject: 'loop0' (00000000c0ffeee7): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (0000000025bb45b8): kobject_uevent_env kobject: 'loop3' (0000000025bb45b8): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000fc76bc00): kobject_uevent_env kobject: 'loop5' (00000000fc76bc00): fill_kobj_path: path = '/devices/virtual/block/loop5' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 8425 Comm: syz-executor.3 Not tainted 5.0.0-rc8+ #3 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 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 kobject: 'loop4' (000000008ec17c4f): kobject_uevent_env kobject: 'loop4' (000000008ec17c4f): fill_kobj_path: path = '/devices/virtual/block/loop4' __should_failslab+0x121/0x190 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1604 kobject: 'loop2' (0000000073240487): kobject_uevent_env slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3374 [inline] __do_kmalloc mm/slab.c:3714 [inline] __kmalloc_track_caller+0x2d8/0x740 mm/slab.c:3731 kmemdup+0x27/0x60 mm/util.c:111 kobject: 'loop2' (0000000073240487): fill_kobj_path: path = '/devices/virtual/block/loop2' kmemdup include/linux/string.h:425 [inline] copy_thread_tls+0x5c4/0x770 arch/x86/kernel/process_64.c:424 kobject: 'loop2' (0000000073240487): kobject_uevent_env copy_process.part.0+0x3a94/0x79a0 kernel/fork.c:1926 kobject: 'loop2' (0000000073240487): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000c0ffeee7): kobject_uevent_env copy_process kernel/fork.c:1710 [inline] _do_fork+0x257/0xfe0 kernel/fork.c:2227 kobject: 'loop0' (00000000c0ffeee7): fill_kobj_path: path = '/devices/virtual/block/loop0' __do_sys_clone kernel/fork.c:2334 [inline] __se_sys_clone kernel/fork.c:2328 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2328 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e29 Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fd6c36cdc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fd6c36cdc90 RCX: 0000000000457e29 RDX: 9999999999999999 RSI: 0000000000000000 RDI: 0000000000902100 RBP: 000000000073bf00 R08: ffffffffffffffff R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd6c36ce6d4 R13: 00000000004be1d9 R14: 00000000004ce8e0 R15: 0000000000000003 kobject: 'loop5' (00000000fc76bc00): kobject_uevent_env kobject: 'loop5' (00000000fc76bc00): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (00000000c0ffeee7): kobject_uevent_env kobject: 'loop0' (00000000c0ffeee7): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000073240487): kobject_uevent_env kobject: 'loop2' (0000000073240487): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000025bb45b8): kobject_uevent_env FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop3' (0000000025bb45b8): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (000000008ec17c4f): kobject_uevent_env kobject: 'loop4' (000000008ec17c4f): fill_kobj_path: path = '/devices/virtual/block/loop4' CPU: 0 PID: 8469 Comm: syz-executor.3 Not tainted 5.0.0-rc8+ #3 kobject: 'loop5' (00000000fc76bc00): kobject_uevent_env 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 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 kobject: 'loop5' (00000000fc76bc00): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (00000000c0ffeee7): kobject_uevent_env __should_failslab+0x121/0x190 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1604 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3374 [inline] kmem_cache_alloc+0x2b2/0x6f0 mm/slab.c:3548 kobject: 'loop0' (00000000c0ffeee7): fill_kobj_path: path = '/devices/virtual/block/loop0' alloc_pid+0x55/0x8f0 kernel/pid.c:168 copy_process.part.0+0x3b13/0x79a0 kernel/fork.c:1933 copy_process kernel/fork.c:1710 [inline] _do_fork+0x257/0xfe0 kernel/fork.c:2227 __do_sys_clone kernel/fork.c:2334 [inline] __se_sys_clone kernel/fork.c:2328 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2328 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e29 Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fd6c36cdc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fd6c36cdc90 RCX: 0000000000457e29 RDX: 9999999999999999 RSI: 0000000000000000 RDI: 0000000000902100 RBP: 000000000073bf00 R08: ffffffffffffffff R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd6c36ce6d4 R13: 00000000004be1d9 R14: 00000000004ce8e0 R15: 0000000000000003 kobject: 'loop5' (00000000fc76bc00): kobject_uevent_env kobject: 'loop5' (00000000fc76bc00): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (00000000c0ffeee7): kobject_uevent_env kobject: 'loop0' (00000000c0ffeee7): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000073240487): kobject_uevent_env kobject: 'loop2' (0000000073240487): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000025bb45b8): kobject_uevent_env kobject: 'loop3' (0000000025bb45b8): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop3' (0000000025bb45b8): kobject_uevent_env kobject: 'loop3' (0000000025bb45b8): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (0000000073240487): kobject_uevent_env kobject: 'loop2' (0000000073240487): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (00000000fc76bc00): kobject_uevent_env kobject: 'loop5' (00000000fc76bc00): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (00000000c0ffeee7): kobject_uevent_env kobject: 'loop0' (00000000c0ffeee7): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000fc76bc00): kobject_uevent_env kobject: 'loop5' (00000000fc76bc00): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (00000000c0ffeee7): kobject_uevent_env kobject: 'loop0' (00000000c0ffeee7): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (0000000025bb45b8): kobject_uevent_env kobject: 'loop3' (0000000025bb45b8): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000fc76bc00): kobject_uevent_env kobject: 'loop5' (00000000fc76bc00): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (000000008ec17c4f): kobject_uevent_env kobject: 'loop4' (000000008ec17c4f): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (0000000073240487): kobject_uevent_env kobject: 'loop2' (0000000073240487): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000c0ffeee7): kobject_uevent_env kobject: 'loop0' (00000000c0ffeee7): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (0000000025bb45b8): kobject_uevent_env kobject: 'loop3' (0000000025bb45b8): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000fc76bc00): kobject_uevent_env kobject: 'loop5' (00000000fc76bc00): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (0000000073240487): kobject_uevent_env kobject: 'loop2' (0000000073240487): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000c0ffeee7): kobject_uevent_env kobject: 'loop0' (00000000c0ffeee7): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000fc76bc00): kobject_uevent_env kobject: 'loop5' (00000000fc76bc00): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (0000000073240487): kobject_uevent_env kobject: 'loop2' (0000000073240487): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000025bb45b8): kobject_uevent_env kobject: 'loop3' (0000000025bb45b8): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000c0ffeee7): kobject_uevent_env kobject: 'loop0' (00000000c0ffeee7): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (000000008ec17c4f): kobject_uevent_env kobject: 'loop4' (000000008ec17c4f): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (0000000073240487): kobject_uevent_env kobject: 'loop2' (0000000073240487): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000025bb45b8): kobject_uevent_env kobject: 'loop3' (0000000025bb45b8): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000fc76bc00): kobject_uevent_env kobject: 'loop5' (00000000fc76bc00): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (00000000c0ffeee7): kobject_uevent_env kobject: 'loop0' (00000000c0ffeee7): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000073240487): kobject_uevent_env kobject: 'loop2' (0000000073240487): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000c0ffeee7): kobject_uevent_env kobject: 'loop0' (00000000c0ffeee7): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000073240487): kobject_uevent_env kobject: 'loop2' (0000000073240487): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (000000008ec17c4f): kobject_uevent_env kobject: 'loop4' (000000008ec17c4f): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (0000000025bb45b8): kobject_uevent_env kobject: 'loop3' (0000000025bb45b8): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000fc76bc00): kobject_uevent_env kobject: 'loop5' (00000000fc76bc00): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (0000000073240487): kobject_uevent_env kobject: 'loop2' (0000000073240487): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000c0ffeee7): kobject_uevent_env kobject: 'loop0' (00000000c0ffeee7): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000fc76bc00): kobject_uevent_env kobject: 'loop5' (00000000fc76bc00): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (0000000025bb45b8): kobject_uevent_env kobject: 'loop3' (0000000025bb45b8): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (0000000073240487): kobject_uevent_env kobject: 'loop2' (0000000073240487): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000c0ffeee7): kobject_uevent_env kobject: 'loop0' (00000000c0ffeee7): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (0000000025bb45b8): kobject_uevent_env kobject: 'loop3' (0000000025bb45b8): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (000000008ec17c4f): kobject_uevent_env kobject: 'loop4' (000000008ec17c4f): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (00000000fc76bc00): kobject_uevent_env kobject: 'loop5' (00000000fc76bc00): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (0000000025bb45b8): kobject_uevent_env kobject: 'loop3' (0000000025bb45b8): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (0000000073240487): kobject_uevent_env kobject: 'loop2' (0000000073240487): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000c0ffeee7): kobject_uevent_env kobject: 'loop0' (00000000c0ffeee7): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000fc76bc00): kobject_uevent_env kobject: 'loop5' (00000000fc76bc00): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (00000000c0ffeee7): kobject_uevent_env kobject: 'loop0' (00000000c0ffeee7): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000073240487): kobject_uevent_env kobject: 'loop2' (0000000073240487): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (00000000fc76bc00): kobject_uevent_env kobject: 'loop5' (00000000fc76bc00): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (000000008ec17c4f): kobject_uevent_env kobject: 'loop4' (000000008ec17c4f): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (00000000c0ffeee7): kobject_uevent_env kobject: 'loop0' (00000000c0ffeee7): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (0000000025bb45b8): kobject_uevent_env kobject: 'loop3' (0000000025bb45b8): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000c0ffeee7): kobject_uevent_env kobject: 'loop0' (00000000c0ffeee7): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000fc76bc00): kobject_uevent_env kobject: 'loop5' (00000000fc76bc00): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (0000000073240487): kobject_uevent_env kobject: 'loop2' (0000000073240487): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000025bb45b8): kobject_uevent_env kobject: 'loop3' (0000000025bb45b8): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (0000000073240487): kobject_uevent_env kobject: 'loop2' (0000000073240487): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (00000000fc76bc00): kobject_uevent_env kobject: 'loop5' (00000000fc76bc00): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (0000000025bb45b8): kobject_uevent_env kobject: 'loop3' (0000000025bb45b8): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (000000008ec17c4f): kobject_uevent_env kobject: 'loop4' (000000008ec17c4f): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (0000000025bb45b8): kobject_uevent_env kobject: 'loop3' (0000000025bb45b8): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000c0ffeee7): kobject_uevent_env kobject: 'loop0' (00000000c0ffeee7): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000073240487): kobject_uevent_env kobject: 'loop2' (0000000073240487): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (00000000fc76bc00): kobject_uevent_env kobject: 'loop5' (00000000fc76bc00): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (0000000025bb45b8): kobject_uevent_env kobject: 'loop3' (0000000025bb45b8): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000fc76bc00): kobject_uevent_env kobject: 'loop5' (00000000fc76bc00): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (0000000073240487): kobject_uevent_env kobject: 'loop2' (0000000073240487): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000025bb45b8): kobject_uevent_env kobject: 'loop3' (0000000025bb45b8): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000fc76bc00): kobject_uevent_env kobject: 'loop5' (00000000fc76bc00): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (000000008ec17c4f): kobject_uevent_env kobject: 'loop4' (000000008ec17c4f): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (00000000c0ffeee7): kobject_uevent_env kobject: 'loop0' (00000000c0ffeee7): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000073240487): kobject_uevent_env kobject: 'loop2' (0000000073240487): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000025bb45b8): kobject_uevent_env kobject: 'loop3' (0000000025bb45b8): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000fc76bc00): kobject_uevent_env kobject: 'loop5' (00000000fc76bc00): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (00000000c0ffeee7): kobject_uevent_env kobject: 'loop0' (00000000c0ffeee7): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000fc76bc00): kobject_uevent_env kobject: 'loop5' (00000000fc76bc00): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (0000000025bb45b8): kobject_uevent_env kobject: 'loop3' (0000000025bb45b8): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000c0ffeee7): kobject_uevent_env kobject: 'loop0' (00000000c0ffeee7): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (000000008ec17c4f): kobject_uevent_env kobject: 'loop4' (000000008ec17c4f): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (00000000fc76bc00): kobject_uevent_env kobject: 'loop5' (00000000fc76bc00): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (0000000073240487): kobject_uevent_env kobject: 'loop2' (0000000073240487): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000c0ffeee7): kobject_uevent_env kobject: 'loop0' (00000000c0ffeee7): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000073240487): kobject_uevent_env kobject: 'loop2' (0000000073240487): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000025bb45b8): kobject_uevent_env kobject: 'loop3' (0000000025bb45b8): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop3' (0000000025bb45b8): kobject_uevent_env kobject: 'loop3' (0000000025bb45b8): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (0000000073240487): kobject_uevent_env kobject: 'loop2' (0000000073240487): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000025bb45b8): kobject_uevent_env kobject: 'loop3' (0000000025bb45b8): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (00000000fc76bc00): kobject_uevent_env kobject: 'loop5' (00000000fc76bc00): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (000000008ec17c4f): kobject_uevent_env kobject: 'loop4' (000000008ec17c4f): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (0000000025bb45b8): kobject_uevent_env kobject: 'loop3' (0000000025bb45b8): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (0000000073240487): kobject_uevent_env kobject: 'loop2' (0000000073240487): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000c0ffeee7): kobject_uevent_env kobject: 'loop0' (00000000c0ffeee7): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (0000000025bb45b8): kobject_uevent_env kobject: 'loop3' (0000000025bb45b8): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (000000008ec17c4f): kobject_uevent_env kobject: 'loop4' (000000008ec17c4f): fill_kobj_path: path = '/devices/virtual/block/loop4'