BTRFS error (device loop5): open_ctree failed BTRFS error (device loop4): superblock checksum mismatch BTRFS warning (device ): duplicate device fsid:devid for ecf6f2a2-2997-48ae-b81e-1b00920efd9a:0 old:/dev/loop4 new:/dev/loop5 BTRFS error (device loop4): open_ctree failed ====================================================== WARNING: possible circular locking dependency detected 5.0.0-rc1+ #15 Not tainted ------------------------------------------------------ syz-executor3/29849 is trying to acquire lock: 00000000d214ff0b (&p->pi_lock){-.-.}, at: try_to_wake_up+0xb9/0x1480 kernel/sched/core.c:1965 but task is already holding lock: 0000000097c59e3f (&pgdat->kswapd_wait){....}, at: __wake_up_common_lock+0x19b/0x390 kernel/sched/wait.c:120 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #4 (&pgdat->kswapd_wait){....}: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:152 __wake_up_common_lock+0x19b/0x390 kernel/sched/wait.c:120 __wake_up+0xe/0x10 kernel/sched/wait.c:145 wakeup_kswapd+0x5ba/0x8f0 mm/vmscan.c:3982 steal_suitable_fallback+0x50d/0x7c0 mm/page_alloc.c:2217 __rmqueue_fallback mm/page_alloc.c:2502 [inline] __rmqueue mm/page_alloc.c:2528 [inline] rmqueue_bulk mm/page_alloc.c:2550 [inline] __rmqueue_pcplist mm/page_alloc.c:3021 [inline] rmqueue_pcplist mm/page_alloc.c:3050 [inline] rmqueue mm/page_alloc.c:3072 [inline] get_page_from_freelist+0x2f53/0x5190 mm/page_alloc.c:3491 __alloc_pages_nodemask+0x4fd/0xdc0 mm/page_alloc.c:4529 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2106 alloc_pages include/linux/gfp.h:509 [inline] __vmalloc_area_node mm/vmalloc.c:1690 [inline] __vmalloc_node_range+0x5cf/0x910 mm/vmalloc.c:1750 __vmalloc_node mm/vmalloc.c:1795 [inline] __vmalloc_node_flags mm/vmalloc.c:1809 [inline] vmalloc+0x6b/0x90 mm/vmalloc.c:1831 do_replace_finish+0x105/0x2ac0 net/bridge/netfilter/ebtables.c:1019 do_replace+0x38c/0x4d0 net/bridge/netfilter/ebtables.c:1159 do_ebt_set_ctl+0xe6/0x110 net/bridge/netfilter/ebtables.c:1528 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x7d/0xd0 net/netfilter/nf_sockopt.c:115 ip_setsockopt net/ipv4/ip_sockglue.c:1260 [inline] ip_setsockopt+0xdf/0x100 net/ipv4/ip_sockglue.c:1240 raw_setsockopt+0xe0/0x100 net/ipv4/raw.c:860 sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2991 __sys_setsockopt+0x1b0/0x3a0 net/socket.c:1902 __do_sys_setsockopt net/socket.c:1913 [inline] __se_sys_setsockopt net/socket.c:1910 [inline] __x64_sys_setsockopt+0xbe/0x150 net/socket.c:1910 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #3 (&(&zone->lock)->rlock){..-.}: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:152 rmqueue mm/page_alloc.c:3082 [inline] get_page_from_freelist+0x13d0/0x5190 mm/page_alloc.c:3491 __alloc_pages_nodemask+0x4fd/0xdc0 mm/page_alloc.c:4529 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2106 alloc_pages include/linux/gfp.h:509 [inline] depot_save_stack+0x3da/0x460 lib/stackdepot.c:260 save_stack+0xa9/0xd0 mm/kasan/common.c:79 set_track mm/kasan/common.c:85 [inline] kasan_kmalloc mm/kasan/common.c:482 [inline] kasan_kmalloc+0xcf/0xe0 mm/kasan/common.c:455 kasan_slab_alloc+0xf/0x20 mm/kasan/common.c:397 kmem_cache_alloc+0x12d/0x710 mm/slab.c:3541 kmem_cache_zalloc include/linux/slab.h:730 [inline] fill_pool lib/debugobjects.c:134 [inline] __debug_object_init+0xb1d/0x12d0 lib/debugobjects.c:379 debug_object_init lib/debugobjects.c:431 [inline] debug_object_activate+0x348/0x550 lib/debugobjects.c:512 debug_timer_activate kernel/time/timer.c:708 [inline] debug_activate kernel/time/timer.c:763 [inline] __mod_timer kernel/time/timer.c:1040 [inline] mod_timer kernel/time/timer.c:1101 [inline] add_timer+0x4e6/0x1470 kernel/time/timer.c:1137 __queue_delayed_work+0x253/0x390 kernel/workqueue.c:1533 queue_delayed_work_on+0x19a/0x200 kernel/workqueue.c:1558 queue_delayed_work include/linux/workqueue.h:527 [inline] schedule_delayed_work include/linux/workqueue.h:628 [inline] unaccount_event kernel/events/core.c:4311 [inline] _free_event+0x1116/0x15d0 kernel/events/core.c:4419 put_event+0x47/0x60 kernel/events/core.c:4532 perf_event_release_kernel+0x890/0xf70 kernel/events/core.c:4638 perf_release+0x37/0x50 kernel/events/core.c:4648 __fput+0x3c5/0xb10 fs/file_table.c:278 ____fput+0x16/0x20 fs/file_table.c:309 task_work_run+0x1f4/0x2b0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop+0x32a/0x3b0 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+0x696/0x800 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #2 (&base->lock){-.-.}: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:152 lock_timer_base+0xb7/0x2a0 kernel/time/timer.c:937 __mod_timer kernel/time/timer.c:1009 [inline] mod_timer kernel/time/timer.c:1101 [inline] add_timer+0x884/0x1470 kernel/time/timer.c:1137 __queue_delayed_work+0x253/0x390 kernel/workqueue.c:1533 queue_delayed_work_on+0x19a/0x200 kernel/workqueue.c:1558 queue_delayed_work include/linux/workqueue.h:527 [inline] schedule_delayed_work include/linux/workqueue.h:628 [inline] psi_group_change kernel/sched/psi.c:485 [inline] psi_task_change+0x3ea/0x590 kernel/sched/psi.c:534 psi_enqueue kernel/sched/stats.h:82 [inline] enqueue_task kernel/sched/core.c:727 [inline] activate_task+0x1f8/0x470 kernel/sched/core.c:751 wake_up_new_task+0x50c/0xd30 kernel/sched/core.c:2423 _do_fork+0x2a5/0x1170 kernel/fork.c:2251 kernel_thread+0x34/0x40 kernel/fork.c:2285 rest_init+0x28/0x37b init/main.c:408 arch_call_rest_init+0xe/0x1b start_kernel+0x882/0x8bd init/main.c:740 x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:470 x86_64_start_kernel+0x77/0x7b arch/x86/kernel/head64.c:451 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 -> #1 (&rq->lock){-.-.}: __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144 rq_lock kernel/sched/sched.h:1149 [inline] task_fork_fair+0xb5/0x7a0 kernel/sched/fair.c:10058 sched_fork+0x437/0xb90 kernel/sched/core.c:2359 copy_process+0x1f95/0x8710 kernel/fork.c:1886 _do_fork+0x1a9/0x1170 kernel/fork.c:2226 kernel_thread+0x34/0x40 kernel/fork.c:2285 rest_init+0x28/0x37b init/main.c:408 arch_call_rest_init+0xe/0x1b start_kernel+0x882/0x8bd init/main.c:740 x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:470 x86_64_start_kernel+0x77/0x7b arch/x86/kernel/head64.c:451 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 -> #0 (&p->pi_lock){-.-.}: lock_acquire+0x1db/0x570 kernel/locking/lockdep.c:3841 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:152 try_to_wake_up+0xb9/0x1480 kernel/sched/core.c:1965 default_wake_function+0x30/0x50 kernel/sched/core.c:3710 autoremove_wake_function+0x79/0x360 kernel/sched/wait.c:375 __wake_up_common+0x1d3/0x7d0 kernel/sched/wait.c:92 __wake_up_common_lock+0x1c6/0x390 kernel/sched/wait.c:121 __wake_up+0xe/0x10 kernel/sched/wait.c:145 wakeup_kswapd+0x5ba/0x8f0 mm/vmscan.c:3982 steal_suitable_fallback+0x50d/0x7c0 mm/page_alloc.c:2217 __rmqueue_fallback mm/page_alloc.c:2502 [inline] __rmqueue mm/page_alloc.c:2528 [inline] rmqueue_bulk mm/page_alloc.c:2550 [inline] __rmqueue_pcplist mm/page_alloc.c:3021 [inline] rmqueue_pcplist mm/page_alloc.c:3050 [inline] rmqueue mm/page_alloc.c:3072 [inline] get_page_from_freelist+0x2f53/0x5190 mm/page_alloc.c:3491 __alloc_pages_nodemask+0x4fd/0xdc0 mm/page_alloc.c:4529 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2106 alloc_pages include/linux/gfp.h:509 [inline] __vmalloc_area_node mm/vmalloc.c:1690 [inline] __vmalloc_node_range+0x5cf/0x910 mm/vmalloc.c:1750 __vmalloc_node mm/vmalloc.c:1795 [inline] __vmalloc_node_flags mm/vmalloc.c:1809 [inline] vmalloc+0x6b/0x90 mm/vmalloc.c:1831 do_replace_finish+0x105/0x2ac0 net/bridge/netfilter/ebtables.c:1019 do_replace+0x38c/0x4d0 net/bridge/netfilter/ebtables.c:1159 do_ebt_set_ctl+0xe6/0x110 net/bridge/netfilter/ebtables.c:1528 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x7d/0xd0 net/netfilter/nf_sockopt.c:115 ip_setsockopt net/ipv4/ip_sockglue.c:1260 [inline] ip_setsockopt+0xdf/0x100 net/ipv4/ip_sockglue.c:1240 raw_setsockopt+0xe0/0x100 net/ipv4/raw.c:860 sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2991 __sys_setsockopt+0x1b0/0x3a0 net/socket.c:1902 __do_sys_setsockopt net/socket.c:1913 [inline] __se_sys_setsockopt net/socket.c:1910 [inline] __x64_sys_setsockopt+0xbe/0x150 net/socket.c:1910 do_syscall_64+0x1a3/0x800 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->pi_lock --> &(&zone->lock)->rlock --> &pgdat->kswapd_wait Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&pgdat->kswapd_wait); lock(&(&zone->lock)->rlock); lock(&pgdat->kswapd_wait); lock(&p->pi_lock); *** DEADLOCK *** 2 locks held by syz-executor3/29849: #0: 00000000c93053f5 (&(&zone->lock)->rlock){..-.}, at: spin_lock include/linux/spinlock.h:329 [inline] #0: 00000000c93053f5 (&(&zone->lock)->rlock){..-.}, at: rmqueue_bulk mm/page_alloc.c:2548 [inline] #0: 00000000c93053f5 (&(&zone->lock)->rlock){..-.}, at: __rmqueue_pcplist mm/page_alloc.c:3021 [inline] #0: 00000000c93053f5 (&(&zone->lock)->rlock){..-.}, at: rmqueue_pcplist mm/page_alloc.c:3050 [inline] #0: 00000000c93053f5 (&(&zone->lock)->rlock){..-.}, at: rmqueue mm/page_alloc.c:3072 [inline] #0: 00000000c93053f5 (&(&zone->lock)->rlock){..-.}, at: get_page_from_freelist+0x1ab1/0x5190 mm/page_alloc.c:3491 #1: 0000000097c59e3f (&pgdat->kswapd_wait){....}, at: __wake_up_common_lock+0x19b/0x390 kernel/sched/wait.c:120 stack backtrace: CPU: 1 PID: 29849 Comm: syz-executor3 Not tainted 5.0.0-rc1+ #15 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+0x1db/0x2d0 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+0x3014/0x4a30 kernel/locking/lockdep.c:3338 lock_acquire+0x1db/0x570 kernel/locking/lockdep.c:3841 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:152 try_to_wake_up+0xb9/0x1480 kernel/sched/core.c:1965 default_wake_function+0x30/0x50 kernel/sched/core.c:3710 autoremove_wake_function+0x79/0x360 kernel/sched/wait.c:375 __wake_up_common+0x1d3/0x7d0 kernel/sched/wait.c:92 __wake_up_common_lock+0x1c6/0x390 kernel/sched/wait.c:121 __wake_up+0xe/0x10 kernel/sched/wait.c:145 wakeup_kswapd+0x5ba/0x8f0 mm/vmscan.c:3982 steal_suitable_fallback+0x50d/0x7c0 mm/page_alloc.c:2217 __rmqueue_fallback mm/page_alloc.c:2502 [inline] __rmqueue mm/page_alloc.c:2528 [inline] rmqueue_bulk mm/page_alloc.c:2550 [inline] __rmqueue_pcplist mm/page_alloc.c:3021 [inline] rmqueue_pcplist mm/page_alloc.c:3050 [inline] rmqueue mm/page_alloc.c:3072 [inline] get_page_from_freelist+0x2f53/0x5190 mm/page_alloc.c:3491 __alloc_pages_nodemask+0x4fd/0xdc0 mm/page_alloc.c:4529 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2106 alloc_pages include/linux/gfp.h:509 [inline] __vmalloc_area_node mm/vmalloc.c:1690 [inline] __vmalloc_node_range+0x5cf/0x910 mm/vmalloc.c:1750 __vmalloc_node mm/vmalloc.c:1795 [inline] __vmalloc_node_flags mm/vmalloc.c:1809 [inline] vmalloc+0x6b/0x90 mm/vmalloc.c:1831 do_replace_finish+0x105/0x2ac0 net/bridge/netfilter/ebtables.c:1019 do_replace+0x38c/0x4d0 net/bridge/netfilter/ebtables.c:1159 do_ebt_set_ctl+0xe6/0x110 net/bridge/netfilter/ebtables.c:1528 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x7d/0xd0 net/netfilter/nf_sockopt.c:115 ip_setsockopt net/ipv4/ip_sockglue.c:1260 [inline] ip_setsockopt+0xdf/0x100 net/ipv4/ip_sockglue.c:1240 raw_setsockopt+0xe0/0x100 net/ipv4/raw.c:860 sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2991 __sys_setsockopt+0x1b0/0x3a0 net/socket.c:1902 __do_sys_setsockopt net/socket.c:1913 [inline] __se_sys_setsockopt net/socket.c:1910 [inline] __x64_sys_setsockopt+0xbe/0x150 net/socket.c:1910 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457ec9 Code: 6d b7 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 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f0e10352c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000457ec9 RDX: 0000000000000080 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 000000000073bfa0 R08: 0000000000000108 R09: 0000000000000000 R10: 0000000020000000 R11: 0000000000000246 R12: 00007f0e103536d4 R13: 00000000004c5563 R14: 00000000004d9238 R15: 00000000ffffffff kernel msg: ebtables bug: please report to author: bad policy kernel msg: ebtables bug: please report to author: bad policy kobject: 'loop2' (000000002fa7bd40): kobject_uevent_env kobject: 'loop2' (000000002fa7bd40): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000004cf6d40): kobject_uevent_env kobject: 'loop3' (0000000004cf6d40): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (000000007d5e5999): kobject_uevent_env kobject: 'loop5' (000000007d5e5999): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (000000004222d5b4): kobject_uevent_env kobject: 'loop0' (000000004222d5b4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (000000000814720b): kobject_uevent_env kobject: 'loop4' (000000000814720b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (000000009bfab52f): kobject_uevent_env kobject: 'loop1' (000000009bfab52f): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'btrfs-971' (000000007bab17f5): kobject_add_internal: parent: 'bdi', set: 'devices' BTRFS warning (device ): duplicate device fsid:devid for ecf6f2a2-2997-48ae-b81e-1b00920efd9a:0 old:/dev/loop2 new:/dev/loop5 hfsplus: unable to find HFS+ superblock kobject: 'btrfs-971' (000000007bab17f5): kobject_uevent_env kobject: 'btrfs-971' (000000007bab17f5): fill_kobj_path: path = '/devices/virtual/bdi/btrfs-971' BTRFS error (device loop2): superblock checksum mismatch kobject: 'loop0' (000000004222d5b4): kobject_uevent_env kobject: 'loop0' (000000004222d5b4): fill_kobj_path: path = '/devices/virtual/block/loop0' hfsplus: umask requires a value hfsplus: unable to parse mount options kobject: 'loop5' (000000007d5e5999): kobject_uevent_env kobject: 'loop5' (000000007d5e5999): fill_kobj_path: path = '/devices/virtual/block/loop5' BTRFS warning (device ): duplicate device fsid:devid for ecf6f2a2-2997-48ae-b81e-1b00920efd9a:0 old:/dev/loop2 new:/dev/loop4 kobject: 'loop5' (000000007d5e5999): kobject_uevent_env kobject: 'loop5' (000000007d5e5999): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (000000009bfab52f): kobject_uevent_env kobject: 'loop1' (000000009bfab52f): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop1' (000000009bfab52f): kobject_uevent_env kobject: 'loop4' (000000000814720b): kobject_uevent_env kobject: 'loop1' (000000009bfab52f): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (000000000814720b): fill_kobj_path: path = '/devices/virtual/block/loop4' BTRFS error (device loop2): open_ctree failed kobject: 'loop0' (000000004222d5b4): kobject_uevent_env kobject: 'loop0' (000000004222d5b4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (000000007d5e5999): kobject_uevent_env kobject: 'btrfs-971' (000000007bab17f5): kobject_uevent_env hfsplus: umask requires a value kobject: 'loop4' (000000000814720b): kobject_uevent_env kobject: 'btrfs-971' (000000007bab17f5): fill_kobj_path: path = '/devices/virtual/bdi/btrfs-971' kobject: 'loop5' (000000007d5e5999): fill_kobj_path: path = '/devices/virtual/block/loop5' hfsplus: unable to parse mount options kobject: 'loop4' (000000000814720b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'btrfs-971' (000000007bab17f5): kobject_cleanup, parent (null) kobject: 'loop4' (000000000814720b): kobject_uevent_env kobject: 'btrfs-971' (000000007bab17f5): calling ktype release kobject: 'loop4' (000000000814720b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (000000007d5e5999): kobject_uevent_env kobject: 'btrfs-971': free name kobject: 'loop5' (000000007d5e5999): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (000000000814720b): kobject_uevent_env kobject: 'loop4' (000000000814720b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (000000004222d5b4): kobject_uevent_env kobject: 'loop1' (000000009bfab52f): kobject_uevent_env kobject: 'loop0' (000000004222d5b4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (000000009bfab52f): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000002fa7bd40): kobject_uevent_env kobject: 'loop2' (000000002fa7bd40): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (000000009bfab52f): kobject_uevent_env kobject: 'loop1' (000000009bfab52f): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (000000000814720b): kobject_uevent_env kobject: 'loop4' (000000000814720b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'btrfs-972' (000000005bcf9ca7): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'loop4' (000000000814720b): kobject_uevent_env kobject: 'loop2' (000000002fa7bd40): kobject_uevent_env kobject: 'loop2' (000000002fa7bd40): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (000000000814720b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'btrfs-972' (000000005bcf9ca7): kobject_uevent_env hfsplus: umask requires a value hfsplus: unable to parse mount options kobject: 'loop4' (000000000814720b): kobject_uevent_env kobject: 'loop4' (000000000814720b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'btrfs-972' (000000005bcf9ca7): fill_kobj_path: path = '/devices/virtual/bdi/btrfs-972' BTRFS error (device loop5): superblock checksum mismatch kobject: 'loop1' (000000009bfab52f): kobject_uevent_env kobject: 'loop1' (000000009bfab52f): fill_kobj_path: path = '/devices/virtual/block/loop1' BTRFS warning (device ): duplicate device fsid:devid for ecf6f2a2-2997-48ae-b81e-1b00920efd9a:0 old:/dev/loop5 new:/dev/loop4 kobject: 'loop1' (000000009bfab52f): kobject_uevent_env kobject: 'loop1' (000000009bfab52f): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000002fa7bd40): kobject_uevent_env kobject: 'loop2' (000000002fa7bd40): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (000000004222d5b4): kobject_uevent_env kobject: 'loop0' (000000004222d5b4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (000000009bfab52f): kobject_uevent_env kobject: 'loop1' (000000009bfab52f): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (000000000814720b): kobject_uevent_env kobject: 'loop4' (000000000814720b): fill_kobj_path: path = '/devices/virtual/block/loop4' BTRFS error (device loop5): open_ctree failed hfsplus: unable to find HFS+ superblock kobject: 'loop4' (000000000814720b): kobject_uevent_env kobject: 'loop2' (000000002fa7bd40): kobject_uevent_env kobject: 'loop4' (000000000814720b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000002fa7bd40): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'btrfs-972' (000000005bcf9ca7): kobject_uevent_env kobject: 'btrfs-972' (000000005bcf9ca7): fill_kobj_path: path = '/devices/virtual/bdi/btrfs-972' kobject: 'loop4' (000000000814720b): kobject_uevent_env kobject: 'loop5' (000000007d5e5999): kobject_uevent_env kobject: 'loop4' (000000000814720b): fill_kobj_path: path = '/devices/virtual/block/loop4' kernel msg: ebtables bug: please report to author: bad policy kobject: 'btrfs-972' (000000005bcf9ca7): kobject_cleanup, parent (null) kobject: 'loop5' (000000007d5e5999): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'btrfs-972' (000000005bcf9ca7): calling ktype release kobject: 'loop4' (000000000814720b): kobject_uevent_env kobject: 'btrfs-972': free name kobject: 'loop4' (000000000814720b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (000000004222d5b4): kobject_uevent_env kobject: 'loop0' (000000004222d5b4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (000000007d5e5999): kobject_uevent_env kobject: 'btrfs-973' (000000007ff0e550): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'loop5' (000000007d5e5999): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'btrfs-973' (000000007ff0e550): kobject_uevent_env kobject: 'loop5' (000000007d5e5999): kobject_uevent_env kernel msg: ebtables bug: please report to author: bad policy kobject: 'loop5' (000000007d5e5999): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'btrfs-973' (000000007ff0e550): fill_kobj_path: path = '/devices/virtual/bdi/btrfs-973' BTRFS error (device loop2): superblock checksum mismatch BTRFS warning (device ): duplicate device fsid:devid for ecf6f2a2-2997-48ae-b81e-1b00920efd9a:0 old:/dev/loop2 new:/dev/loop4 kobject: 'loop5' (000000007d5e5999): kobject_uevent_env kobject: 'loop5' (000000007d5e5999): fill_kobj_path: path = '/devices/virtual/block/loop5' BTRFS error (device loop2): open_ctree failed kobject: 'btrfs-973' (000000007ff0e550): kobject_uevent_env kobject: 'btrfs-973' (000000007ff0e550): fill_kobj_path: path = '/devices/virtual/bdi/btrfs-973' kobject: 'btrfs-973' (000000007ff0e550): kobject_cleanup, parent (null) kobject: 'loop4' (000000000814720b): kobject_uevent_env kobject: 'btrfs-973' (000000007ff0e550): calling ktype release kobject: 'loop4' (000000000814720b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop4' (000000000814720b): kobject_uevent_env kobject: 'loop4' (000000000814720b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'btrfs-973': free name kobject: 'loop2' (000000002fa7bd40): kobject_uevent_env kobject: 'loop2' (000000002fa7bd40): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop2' (000000002fa7bd40): kobject_uevent_env kobject: 'loop2' (000000002fa7bd40): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop2' (000000002fa7bd40): kobject_uevent_env kobject: 'loop2' (000000002fa7bd40): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (000000004222d5b4): kobject_uevent_env kobject: 'loop0' (000000004222d5b4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (000000002fa7bd40): kobject_uevent_env kobject: 'loop2' (000000002fa7bd40): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000004cf6d40): kobject_uevent_env kobject: 'loop3' (0000000004cf6d40): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (000000000814720b): kobject_uevent_env kobject: 'loop4' (000000000814720b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (000000007d5e5999): kobject_uevent_env kobject: 'loop5' (000000007d5e5999): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (000000009bfab52f): kobject_uevent_env kobject: 'loop1' (000000009bfab52f): fill_kobj_path: path = '/devices/virtual/block/loop1' hfsplus: unable to find HFS+ superblock hfsplus: umask requires a value kobject: 'btrfs-974' (0000000031e9f341): kobject_add_internal: parent: 'bdi', set: 'devices' BTRFS warning (device ): duplicate device fsid:devid for ecf6f2a2-2997-48ae-b81e-1b00920efd9a:0 old:/dev/loop2 new:/dev/loop4 hfsplus: unable to parse mount options kobject: 'btrfs-974' (0000000031e9f341): kobject_uevent_env kobject: 'btrfs-974' (0000000031e9f341): fill_kobj_path: path = '/devices/virtual/bdi/btrfs-974' kobject: 'loop0' (000000004222d5b4): kobject_uevent_env BTRFS error (device loop2): superblock checksum mismatch kobject: 'loop0' (000000004222d5b4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (000000009bfab52f): kobject_uevent_env kobject: 'loop1' (000000009bfab52f): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop1' (000000009bfab52f): kobject_uevent_env kobject: 'loop1' (000000009bfab52f): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (000000000814720b): kobject_uevent_env kobject: 'loop4' (000000000814720b): fill_kobj_path: path = '/devices/virtual/block/loop4' BTRFS warning (device ): duplicate device fsid:devid for ecf6f2a2-2997-48ae-b81e-1b00920efd9a:0 old:/dev/loop2 new:/dev/loop5 kobject: 'loop0' (000000004222d5b4): kobject_uevent_env kobject: 'loop0' (000000004222d5b4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (000000000814720b): kobject_uevent_env kobject: 'loop4' (000000000814720b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (000000007d5e5999): kobject_uevent_env kobject: 'loop5' (000000007d5e5999): fill_kobj_path: path = '/devices/virtual/block/loop5' BTRFS error (device loop2): open_ctree failed hfsplus: unable to find HFS+ superblock kobject: 'loop1' (000000009bfab52f): kobject_uevent_env kobject: 'btrfs-974' (0000000031e9f341): kobject_uevent_env kobject: 'btrfs-974' (0000000031e9f341): fill_kobj_path: path = '/devices/virtual/bdi/btrfs-974' kobject: 'loop1' (000000009bfab52f): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (000000004222d5b4): kobject_uevent_env kobject: 'loop0' (000000004222d5b4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (000000000814720b): kobject_uevent_env kobject: 'btrfs-974' (0000000031e9f341): kobject_cleanup, parent (null) kobject: 'loop4' (000000000814720b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'btrfs-974' (0000000031e9f341): calling ktype release kobject: 'loop5' (000000007d5e5999): kobject_uevent_env kobject: 'loop5' (000000007d5e5999): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (000000000814720b): kobject_uevent_env kobject: 'btrfs-974': free name kobject: 'loop4' (000000000814720b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (000000009bfab52f): kobject_uevent_env kobject: 'loop1' (000000009bfab52f): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000002fa7bd40): kobject_uevent_env kobject: 'loop2' (000000002fa7bd40): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (000000007d5e5999): kobject_uevent_env hfsplus: umask requires a value kobject: 'loop5' (000000007d5e5999): fill_kobj_path: path = '/devices/virtual/block/loop5' hfsplus: unable to parse mount options kobject: 'loop5' (000000007d5e5999): kobject_uevent_env kobject: 'btrfs-975' (00000000001ae406): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'loop5' (000000007d5e5999): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'btrfs-975' (00000000001ae406): kobject_uevent_env kobject: 'btrfs-975' (00000000001ae406): fill_kobj_path: path = '/devices/virtual/bdi/btrfs-975' kobject: 'loop1' (000000009bfab52f): kobject_uevent_env kobject: 'loop1' (000000009bfab52f): fill_kobj_path: path = '/devices/virtual/block/loop1' BTRFS error (device loop4): superblock checksum mismatch kobject: 'loop1' (000000009bfab52f): kobject_uevent_env kobject: 'loop0' (000000004222d5b4): kobject_uevent_env kobject: 'loop1' (000000009bfab52f): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (000000004222d5b4): fill_kobj_path: path = '/devices/virtual/block/loop0' BTRFS warning (device ): duplicate device fsid:devid for ecf6f2a2-2997-48ae-b81e-1b00920efd9a:0 old:/dev/loop4 new:/dev/loop5 kobject: 'loop1' (000000009bfab52f): kobject_uevent_env kobject: 'loop1' (000000009bfab52f): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop1' (000000009bfab52f): kobject_uevent_env kobject: 'loop2' (000000002fa7bd40): kobject_uevent_env kobject: 'loop2' (000000002fa7bd40): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (000000009bfab52f): fill_kobj_path: path = '/devices/virtual/block/loop1' hfsplus: unable to find HFS+ superblock kobject: 'loop5' (000000007d5e5999): kobject_uevent_env kobject: 'loop5' (000000007d5e5999): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop5' (000000007d5e5999): kobject_uevent_env kobject: 'loop5' (000000007d5e5999): fill_kobj_path: path = '/devices/virtual/block/loop5' BTRFS error (device loop4): open_ctree failed kobject: 'btrfs-975' (00000000001ae406): kobject_uevent_env kobject: 'btrfs-975' (00000000001ae406): fill_kobj_path: path = '/devices/virtual/bdi/btrfs-975' kobject: 'loop0' (000000004222d5b4): kobject_uevent_env kobject: 'btrfs-975' (00000000001ae406): kobject_cleanup, parent (null) kobject: 'loop0' (000000004222d5b4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'btrfs-975' (00000000001ae406): calling ktype release kobject: 'btrfs-975': free name kobject: 'loop1' (000000009bfab52f): kobject_uevent_env kobject: 'loop1' (000000009bfab52f): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'btrfs-976' (0000000022e43416): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'loop1' (000000009bfab52f): kobject_uevent_env kobject: 'loop1' (000000009bfab52f): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'btrfs-976' (0000000022e43416): kobject_uevent_env kobject: 'btrfs-976' (0000000022e43416): fill_kobj_path: path = '/devices/virtual/bdi/btrfs-976' kobject: 'loop4' (000000000814720b): kobject_uevent_env kobject: 'loop4' (000000000814720b): fill_kobj_path: path = '/devices/virtual/block/loop4' BTRFS error (device loop2): superblock checksum mismatch kobject: 'loop5' (000000007d5e5999): kobject_uevent_env BTRFS error (device loop2): open_ctree failed kobject: 'loop5' (000000007d5e5999): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'btrfs-976' (0000000022e43416): kobject_uevent_env kobject: 'loop4' (000000000814720b): kobject_uevent_env kobject: 'loop4' (000000000814720b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'btrfs-976' (0000000022e43416): fill_kobj_path: path = '/devices/virtual/bdi/btrfs-976' kobject: 'loop4' (000000000814720b): kobject_uevent_env kobject: 'loop4' (000000000814720b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'btrfs-976' (0000000022e43416): kobject_cleanup, parent (null) kobject: 'btrfs-976' (0000000022e43416): calling ktype release kobject: 'btrfs-976': free name kobject: 'loop2' (000000002fa7bd40): kobject_uevent_env kobject: 'loop2' (000000002fa7bd40): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop2' (000000002fa7bd40): kobject_uevent_env kobject: 'loop2' (000000002fa7bd40): fill_kobj_path: path = '/devices/virtual/block/loop2' kernel msg: ebtables bug: please report to author: bad policy kernel msg: ebtables bug: please report to author: bad policy kobject: 'loop2' (000000002fa7bd40): kobject_uevent_env kobject: 'loop2' (000000002fa7bd40): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000004cf6d40): kobject_uevent_env kobject: 'loop4' (000000000814720b): kobject_uevent_env kobject: 'loop4' (000000000814720b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (0000000004cf6d40): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (000000009bfab52f): kobject_uevent_env kobject: 'loop1' (000000009bfab52f): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (000000007d5e5999): kobject_uevent_env kobject: 'loop5' (000000007d5e5999): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (000000004222d5b4): kobject_uevent_env kobject: 'loop0' (000000004222d5b4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (000000002fa7bd40): kobject_uevent_env kobject: 'loop2' (000000002fa7bd40): fill_kobj_path: path = '/devices/virtual/block/loop2' hfsplus: umask requires a value kobject: 'btrfs-977' (000000007a8de7b9): kobject_add_internal: parent: 'bdi', set: 'devices' BTRFS warning (device ): duplicate device fsid:devid for ecf6f2a2-2997-48ae-b81e-1b00920efd9a:0 old:/dev/loop4 new:/dev/loop5 hfsplus: unable to find HFS+ superblock kobject: 'btrfs-977' (000000007a8de7b9): kobject_uevent_env hfsplus: unable to parse mount options kobject: 'btrfs-977' (000000007a8de7b9): fill_kobj_path: path = '/devices/virtual/bdi/btrfs-977' BTRFS error (device loop4): superblock checksum mismatch kobject: 'loop0' (000000004222d5b4): kobject_uevent_env kobject: 'loop0' (000000004222d5b4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (000000007d5e5999): kobject_uevent_env kobject: 'loop5' (000000007d5e5999): fill_kobj_path: path = '/devices/virtual/block/loop5' BTRFS warning (device ): duplicate device fsid:devid for ecf6f2a2-2997-48ae-b81e-1b00920efd9a:0 old:/dev/loop4 new:/dev/loop2 kobject: 'loop5' (000000007d5e5999): kobject_uevent_env kobject: 'loop5' (000000007d5e5999): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (000000009bfab52f): kobject_uevent_env kobject: 'loop1' (000000009bfab52f): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop1' (000000009bfab52f): kobject_uevent_env kobject: 'loop1' (000000009bfab52f): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000002fa7bd40): kobject_uevent_env kobject: 'loop2' (000000002fa7bd40): fill_kobj_path: path = '/devices/virtual/block/loop2' BTRFS error (device loop4): open_ctree failed kobject: 'loop2' (000000002fa7bd40): kobject_uevent_env kobject: 'btrfs-977' (000000007a8de7b9): kobject_uevent_env kobject: 'loop2' (000000002fa7bd40): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'btrfs-977' (000000007a8de7b9): fill_kobj_path: path = '/devices/virtual/bdi/btrfs-977' kobject: 'loop5' (000000007d5e5999): kobject_uevent_env kobject: 'loop5' (000000007d5e5999): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'btrfs-977' (000000007a8de7b9): kobject_cleanup, parent (null) kobject: 'btrfs-977' (000000007a8de7b9): calling ktype release kobject: 'loop5' (000000007d5e5999): kobject_uevent_env kobject: 'btrfs-977': free name kobject: 'loop5' (000000007d5e5999): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (000000004222d5b4): kobject_uevent_env kobject: 'loop0' (000000004222d5b4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (000000009bfab52f): kobject_uevent_env kobject: 'loop1' (000000009bfab52f): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000002fa7bd40): kobject_uevent_env kobject: 'loop2' (000000002fa7bd40): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (000000000814720b): kobject_uevent_env kobject: 'loop4' (000000000814720b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'btrfs-978' (00000000f97fbb07): kobject_add_internal: parent: 'bdi', set: 'devices' hfsplus: unable to find HFS+ superblock kobject: 'loop4' (000000000814720b): kobject_uevent_env kobject: 'btrfs-978' (00000000f97fbb07): kobject_uevent_env kobject: 'loop4' (000000000814720b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'btrfs-978' (00000000f97fbb07): fill_kobj_path: path = '/devices/virtual/bdi/btrfs-978' kobject: 'loop0' (000000004222d5b4): kobject_uevent_env kobject: 'loop0' (000000004222d5b4): fill_kobj_path: path = '/devices/virtual/block/loop0' BTRFS error (device loop5): superblock checksum mismatch kobject: 'loop2' (000000002fa7bd40): kobject_uevent_env kobject: 'loop2' (000000002fa7bd40): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (000000009bfab52f): kobject_uevent_env kobject: 'loop1' (000000009bfab52f): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (000000000814720b): kobject_uevent_env BTRFS error (device loop5): open_ctree failed hfsplus: umask requires a value kobject: 'btrfs-979' (00000000d8573c48): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'loop4' (000000000814720b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'btrfs-978' (00000000f97fbb07): kobject_uevent_env hfsplus: unable to parse mount options kobject: 'btrfs-978' (00000000f97fbb07): fill_kobj_path: path = '/devices/virtual/bdi/btrfs-978' kobject: 'btrfs-979' (00000000d8573c48): kobject_uevent_env kobject: 'loop4' (000000000814720b): kobject_uevent_env kobject: 'btrfs-979' (00000000d8573c48): fill_kobj_path: path = '/devices/virtual/bdi/btrfs-979' kobject: 'btrfs-978' (00000000f97fbb07): kobject_cleanup, parent (null) BTRFS error (device loop2): superblock checksum mismatch kobject: 'loop4' (000000000814720b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'btrfs-978' (00000000f97fbb07): calling ktype release kobject: 'btrfs-978': free name kobject: 'loop1' (000000009bfab52f): kobject_uevent_env kobject: 'loop1' (000000009bfab52f): fill_kobj_path: path = '/devices/virtual/block/loop1' BTRFS error (device loop2): open_ctree failed kobject: 'btrfs-979' (00000000d8573c48): kobject_uevent_env kobject: 'btrfs-980' (00000000b51fb3e4): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'btrfs-979' (00000000d8573c48): fill_kobj_path: path = '/devices/virtual/bdi/btrfs-979' kobject: 'loop1' (000000009bfab52f): kobject_uevent_env kobject: 'btrfs-979' (00000000d8573c48): kobject_cleanup, parent (null) kobject: 'btrfs-979' (00000000d8573c48): calling ktype release kobject: 'loop1' (000000009bfab52f): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (000000007d5e5999): kobject_uevent_env kobject: 'btrfs-980' (00000000b51fb3e4): kobject_uevent_env kobject: 'btrfs-979': free name kobject: 'loop5' (000000007d5e5999): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'btrfs-980' (00000000b51fb3e4): fill_kobj_path: path = '/devices/virtual/bdi/btrfs-980' kobject: 'loop5' (000000007d5e5999): kobject_uevent_env kobject: 'loop0' (000000004222d5b4): kobject_uevent_env kobject: 'loop0' (000000004222d5b4): fill_kobj_path: path = '/devices/virtual/block/loop0' BTRFS error (device loop4): superblock checksum mismatch kobject: 'loop5' (000000007d5e5999): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (000000002fa7bd40): kobject_uevent_env kobject: 'loop2' (000000002fa7bd40): fill_kobj_path: path = '/devices/virtual/block/loop2' BTRFS error (device loop4): open_ctree failed hfsplus: umask requires a value hfsplus: unable to parse mount options