====================================================== kobject: 'loop4' (ffff8880a4a40120): kobject_uevent_env WARNING: possible circular locking dependency detected 4.14.154 #0 Not tainted ------------------------------------------------------ syz-executor.0/26709 is trying to acquire lock: (&rp->fetch_lock){+.+.}, at: [] mon_bin_vma_fault+0x6f/0x280 drivers/usb/mon/mon_bin.c:1236 but task is already holding lock: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x2ca/0xb80 arch/x86/mm/fault.c:1349 which lock already depends on the new lock. kobject: 'loop4' (ffff8880a4a40120): fill_kobj_path: path = '/devices/virtual/block/loop4' the existing dependency chain (in reverse order) is: -> #1 (&mm->mmap_sem){++++}: lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 __might_fault mm/memory.c:4584 [inline] __might_fault+0x143/0x1d0 mm/memory.c:4569 _copy_to_user+0x2c/0xd0 lib/usercopy.c:25 copy_to_user include/linux/uaccess.h:155 [inline] mon_bin_get_event+0x10a/0x430 drivers/usb/mon/mon_bin.c:756 mon_bin_ioctl+0x9b4/0xb50 drivers/usb/mon/mon_bin.c:1067 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 -> #0 (&rp->fetch_lock){+.+.}: check_prev_add kernel/locking/lockdep.c:1901 [inline] check_prevs_add kernel/locking/lockdep.c:2018 [inline] validate_chain kernel/locking/lockdep.c:2460 [inline] __lock_acquire+0x2cb3/0x4620 kernel/locking/lockdep.c:3487 lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xe8/0x1470 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 mon_bin_vma_fault+0x6f/0x280 drivers/usb/mon/mon_bin.c:1236 __do_fault+0x104/0x390 mm/memory.c:3223 do_read_fault mm/memory.c:3633 [inline] do_fault mm/memory.c:3759 [inline] handle_pte_fault mm/memory.c:3989 [inline] __handle_mm_fault+0x2460/0x3470 mm/memory.c:4113 handle_mm_fault+0x293/0x7c0 mm/memory.c:4150 __do_page_fault+0x4c1/0xb80 arch/x86/mm/fault.c:1420 do_page_fault+0x71/0x511 arch/x86/mm/fault.c:1495 page_fault+0x25/0x50 arch/x86/entry/entry_64.S:1122 do_strncpy_from_user lib/strncpy_from_user.c:46 [inline] strncpy_from_user+0x11c/0x260 lib/strncpy_from_user.c:119 getname_flags fs/namei.c:149 [inline] getname_flags+0x110/0x580 fs/namei.c:128 getname+0x1a/0x20 fs/namei.c:209 do_sys_open+0x1e7/0x430 fs/open.c:1078 SYSC_openat fs/open.c:1111 [inline] SyS_openat+0x30/0x40 fs/open.c:1105 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&mm->mmap_sem); lock(&rp->fetch_lock); lock(&mm->mmap_sem); lock(&rp->fetch_lock); *** DEADLOCK *** 1 lock held by syz-executor.0/26709: #0: (&mm->mmap_sem){++++}, at: [] __do_page_fault+0x2ca/0xb80 arch/x86/mm/fault.c:1349 stack backtrace: CPU: 0 PID: 26709 Comm: syz-executor.0 Not tainted 4.14.154 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x142/0x197 lib/dump_stack.c:58 print_circular_bug.isra.0.cold+0x1cc/0x28f kernel/locking/lockdep.c:1258 check_prev_add kernel/locking/lockdep.c:1901 [inline] check_prevs_add kernel/locking/lockdep.c:2018 [inline] validate_chain kernel/locking/lockdep.c:2460 [inline] __lock_acquire+0x2cb3/0x4620 kernel/locking/lockdep.c:3487 lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xe8/0x1470 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 mon_bin_vma_fault+0x6f/0x280 drivers/usb/mon/mon_bin.c:1236 __do_fault+0x104/0x390 mm/memory.c:3223 do_read_fault mm/memory.c:3633 [inline] do_fault mm/memory.c:3759 [inline] handle_pte_fault mm/memory.c:3989 [inline] __handle_mm_fault+0x2460/0x3470 mm/memory.c:4113 handle_mm_fault+0x293/0x7c0 mm/memory.c:4150 __do_page_fault+0x4c1/0xb80 arch/x86/mm/fault.c:1420 do_page_fault+0x71/0x511 arch/x86/mm/fault.c:1495 page_fault+0x25/0x50 arch/x86/entry/entry_64.S:1122 RIP: 0010:do_strncpy_from_user lib/strncpy_from_user.c:46 [inline] RIP: 0010:strncpy_from_user+0x11c/0x260 lib/strncpy_from_user.c:119 RSP: 0018:ffff8880587cfd60 EFLAGS: 00010246 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffc9001008e000 RDX: 00000000000000bc RSI: 0000000020000000 RDI: ffffffff86407000 RBP: ffff8880587cfd98 R08: ffff8880aa9e0cc0 R09: ffff888051f0e7c0 R10: ffffed100a3e1ef7 R11: ffff888051f0f7bf R12: 0000000000000fe4 R13: ffff888051f0e7dc R14: 0000000000000000 R15: 0000000000000fe4 getname_flags fs/namei.c:149 [inline] getname_flags+0x110/0x580 fs/namei.c:128 getname+0x1a/0x20 fs/namei.c:209 do_sys_open+0x1e7/0x430 fs/open.c:1078 SYSC_openat fs/open.c:1111 [inline] SyS_openat+0x30/0x40 fs/open.c:1105 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a219 RSP: 002b:00007f20efcfcc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000045a219 RDX: 0000000000000000 RSI: 0000000020000000 RDI: ffffffffffffff9c RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f20efcfd6d4 R13: 00000000004c7125 R14: 00000000004dcc88 R15: 00000000ffffffff kobject: 'loop5' (ffff8880a4a9c1a0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a40120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a40120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a4a9c1a0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a49271e0): kobject_uevent_env kobject: 'loop3' (ffff8880a49271e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop3' (ffff8880a49271e0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a40120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a40120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a49271e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (ffff8880a4a9c1a0): kobject_uevent_env kobject: 'loop5' (ffff8880a4a9c1a0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a4a40120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a40120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop4' (ffff8880a4a40120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a40120): fill_kobj_path: path = '/devices/virtual/block/loop4' md: invalid raid superblock magic on ram22 md: ram22 does not have a valid v0.0 superblock, not importing! kobject: 'loop3' (ffff8880a49271e0): kobject_uevent_env md: md_import_device returned -22 kobject: 'loop3' (ffff8880a49271e0): fill_kobj_path: path = '/devices/virtual/block/loop3' md: invalid raid superblock magic on ram22 kobject: 'loop5' (ffff8880a4a9c1a0): kobject_uevent_env md: ram22 does not have a valid v0.0 superblock, not importing! kobject: 'loop5' (ffff8880a4a9c1a0): fill_kobj_path: path = '/devices/virtual/block/loop5' md: md_import_device returned -22 kobject: 'loop4' (ffff8880a4a40120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a40120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a4a9c1a0): kobject_uevent_env kobject: 'loop5' (ffff8880a4a9c1a0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a49271e0): kobject_uevent_env kobject: 'loop3' (ffff8880a49271e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (ffff88804b1b5520): kobject_uevent_env kobject: 'loop0' (ffff88804b1b5520): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (ffff8880a4a40120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a40120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a49271e0): kobject_uevent_env kobject: 'loop3' (ffff8880a49271e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (ffff8880a4a9c1a0): kobject_uevent_env kobject: 'loop5' (ffff8880a4a9c1a0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (ffff88804b1b5520): kobject_uevent_env kobject: 'loop0' (ffff88804b1b5520): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (ffff8880a4a40120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a40120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a49271e0): kobject_uevent_env kobject: 'loop3' (ffff8880a49271e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (ffff88804b1b5520): kobject_uevent_env kobject: 'loop0' (ffff88804b1b5520): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (ffff8880a49271e0): kobject_uevent_env kobject: 'loop3' (ffff8880a49271e0): fill_kobj_path: path = '/devices/virtual/block/loop3' md: invalid raid superblock magic on ram22 md: ram22 does not have a valid v0.0 superblock, not importing! kobject: 'loop4' (ffff8880a4a40120): kobject_uevent_env md: md_import_device returned -22 kobject: 'loop4' (ffff8880a4a40120): fill_kobj_path: path = '/devices/virtual/block/loop4' md: invalid raid superblock magic on ram22 md: ram22 does not have a valid v0.0 superblock, not importing! kobject: 'loop0' (ffff88804b1b5520): kobject_uevent_env md: md_import_device returned -22 kobject: 'loop0' (ffff88804b1b5520): fill_kobj_path: path = '/devices/virtual/block/loop0' md: invalid raid superblock magic on ram22 kobject: 'loop3' (ffff8880a49271e0): kobject_uevent_env md: ram22 does not have a valid v0.0 superblock, not importing! kobject: 'loop3' (ffff8880a49271e0): fill_kobj_path: path = '/devices/virtual/block/loop3' md: md_import_device returned -22 kobject: 'loop3' (ffff8880a49271e0): kobject_uevent_env md: invalid raid superblock magic on ram22 md: ram22 does not have a valid v0.0 superblock, not importing! kobject: 'loop3' (ffff8880a49271e0): fill_kobj_path: path = '/devices/virtual/block/loop3' md: md_import_device returned -22 kobject: 'loop4' (ffff8880a4a40120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a40120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a4a9c1a0): kobject_uevent_env kobject: 'loop5' (ffff8880a4a9c1a0): fill_kobj_path: path = '/devices/virtual/block/loop5' md: invalid raid superblock magic on ram22 md: ram22 does not have a valid v0.0 superblock, not importing! md: md_import_device returned -22 md: invalid raid superblock magic on ram22 md: ram22 does not have a valid v0.0 superblock, not importing! md: md_import_device returned -22 md: invalid raid superblock magic on ram22 kobject: 'loop0' (ffff88804b1b5520): kobject_uevent_env kobject: 'loop0' (ffff88804b1b5520): fill_kobj_path: path = '/devices/virtual/block/loop0' md: ram22 does not have a valid v0.0 superblock, not importing! md: md_import_device returned -22 kobject: 'loop3' (ffff8880a49271e0): kobject_uevent_env md: invalid raid superblock magic on ram22 md: ram22 does not have a valid v0.0 superblock, not importing! kobject: 'loop3' (ffff8880a49271e0): fill_kobj_path: path = '/devices/virtual/block/loop3' md: md_import_device returned -22 kobject: 'loop5' (ffff8880a4a9c1a0): kobject_uevent_env kobject: 'loop5' (ffff8880a4a9c1a0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a4a40120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a40120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (ffff88804b1b5520): kobject_uevent_env kobject: 'loop0' (ffff88804b1b5520): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (ffff8880a4a40120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a40120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a4a9c1a0): kobject_uevent_env kobject: 'loop5' (ffff8880a4a9c1a0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (ffff88804b1b5520): kobject_uevent_env kobject: 'loop0' (ffff88804b1b5520): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (ffff8880a4a40120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a40120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a49271e0): kobject_uevent_env kobject: 'loop3' (ffff8880a49271e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (ffff8880a4a9c1a0): kobject_uevent_env kobject: 'loop5' (ffff8880a4a9c1a0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (ffff88804b1b5520): kobject_uevent_env kobject: 'loop0' (ffff88804b1b5520): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (ffff8880a4a40120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a40120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (ffff88804b1b5520): kobject_uevent_env kobject: 'loop0' (ffff88804b1b5520): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (ffff8880a49271e0): kobject_uevent_env kobject: 'loop3' (ffff8880a49271e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (ffff8880a4a9c1a0): kobject_uevent_env kobject: 'loop5' (ffff8880a4a9c1a0): fill_kobj_path: path = '/devices/virtual/block/loop5' md: invalid raid superblock magic on ram22 md: ram22 does not have a valid v0.0 superblock, not importing! md: md_import_device returned -22 kobject: 'loop4' (ffff8880a4a40120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a40120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (ffff88804b1b5520): kobject_uevent_env kobject: 'loop0' (ffff88804b1b5520): fill_kobj_path: path = '/devices/virtual/block/loop0' md: invalid raid superblock magic on ram22 md: ram22 does not have a valid v0.0 superblock, not importing! kobject: 'loop3' (ffff8880a49271e0): kobject_uevent_env md: md_import_device returned -22 kobject: 'loop3' (ffff8880a49271e0): fill_kobj_path: path = '/devices/virtual/block/loop3' md: invalid raid superblock magic on ram22 md: ram22 does not have a valid v0.0 superblock, not importing! kobject: 'loop5' (ffff8880a4a9c1a0): kobject_uevent_env md: md_import_device returned -22 kobject: 'loop5' (ffff8880a4a9c1a0): fill_kobj_path: path = '/devices/virtual/block/loop5' md: invalid raid superblock magic on ram22 md: ram22 does not have a valid v0.0 superblock, not importing! kobject: 'loop0' (ffff88804b1b5520): kobject_uevent_env md: md_import_device returned -22 md: invalid raid superblock magic on ram22 md: ram22 does not have a valid v0.0 superblock, not importing! kobject: 'loop0' (ffff88804b1b5520): fill_kobj_path: path = '/devices/virtual/block/loop0' md: md_import_device returned -22 kobject: 'loop5' (ffff8880a4a9c1a0): kobject_uevent_env kobject: 'loop5' (ffff8880a4a9c1a0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a4a40120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a40120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (ffff88804b1b5520): kobject_uevent_env kobject: 'loop0' (ffff88804b1b5520): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (ffff8880a4a40120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a40120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a49271e0): kobject_uevent_env kobject: 'loop3' (ffff8880a49271e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (ffff8880a4a9c1a0): kobject_uevent_env kobject: 'loop5' (ffff8880a4a9c1a0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (ffff88804b1b5520): kobject_uevent_env kobject: 'loop0' (ffff88804b1b5520): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (ffff8880a49271e0): kobject_uevent_env kobject: 'loop3' (ffff8880a49271e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (ffff88804b1b5520): kobject_uevent_env kobject: 'loop0' (ffff88804b1b5520): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (ffff8880a4a40120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a40120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'veth22' (ffff888082e050f0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop3' (ffff8880a49271e0): kobject_uevent_env kobject: 'veth22' (ffff888082e050f0): kobject_uevent_env kobject: 'loop3' (ffff8880a49271e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'veth22' (ffff888082e050f0): fill_kobj_path: path = '/devices/virtual/net/veth22' kobject: 'queues' (ffff888086c7d048): kobject_add_internal: parent: 'veth22', set: '' kobject: 'loop5' (ffff8880a4a9c1a0): kobject_uevent_env kobject: 'loop5' (ffff8880a4a9c1a0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'queues' (ffff888086c7d048): kobject_uevent_env kobject: 'loop0' (ffff88804b1b5520): kobject_uevent_env kobject: 'queues' (ffff888086c7d048): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop0' (ffff88804b1b5520): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'rx-0' (ffff88808b324f10): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop3' (ffff8880a49271e0): kobject_uevent_env kobject: 'rx-0' (ffff88808b324f10): kobject_uevent_env kobject: 'loop3' (ffff8880a49271e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'rx-0' (ffff88808b324f10): fill_kobj_path: path = '/devices/virtual/net/veth22/queues/rx-0' kobject: 'loop5' (ffff8880a4a9c1a0): kobject_uevent_env kobject: 'tx-0' (ffff8880a98bbcd8): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop5' (ffff8880a4a9c1a0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'tx-0' (ffff8880a98bbcd8): kobject_uevent_env kobject: 'tx-0' (ffff8880a98bbcd8): fill_kobj_path: path = '/devices/virtual/net/veth22/queues/tx-0' kobject: 'batman_adv' (ffff88809169f600): kobject_add_internal: parent: 'veth22', set: '' kobject: 'veth23' (ffff888089e4b170): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'veth23' (ffff888089e4b170): kobject_uevent_env kobject: 'veth23' (ffff888089e4b170): fill_kobj_path: path = '/devices/virtual/net/veth23' kobject: 'queues' (ffff8880a426d148): kobject_add_internal: parent: 'veth23', set: '' kobject: 'queues' (ffff8880a426d148): kobject_uevent_env kobject: 'queues' (ffff8880a426d148): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (ffff888093953cd0): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff888093953cd0): kobject_uevent_env kobject: 'rx-0' (ffff888093953cd0): fill_kobj_path: path = '/devices/virtual/net/veth23/queues/rx-0' kobject: 'tx-0' (ffff8880a98bba58): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff8880a98bba58): kobject_uevent_env kobject: 'tx-0' (ffff8880a98bba58): fill_kobj_path: path = '/devices/virtual/net/veth23/queues/tx-0' kobject: 'batman_adv' (ffff8880a8f3f900): kobject_add_internal: parent: 'veth23', set: '' kobject: 'loop4' (ffff8880a4a40120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a40120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (ffff88804b1b5520): kobject_uevent_env kobject: 'loop0' (ffff88804b1b5520): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (ffff8880a4a40120): kobject_uevent_env kobject: 'loop4' (ffff8880a4a40120): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a49271e0): kobject_uevent_env kobject: 'loop3' (ffff8880a49271e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (ffff88804b1b5520): kobject_uevent_env kobject: 'loop0' (ffff88804b1b5520): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (ffff88804b1b5520): kobject_uevent_env kobject: 'loop0' (ffff88804b1b5520): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (ffff8880a49271e0): kobject_uevent_env kobject: 'loop3' (ffff8880a49271e0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (ffff88804b1b5520): kobject_uevent_env kobject: 'loop0' (ffff88804b1b5520): fill_kobj_path: path = '/devices/virtual/block/loop0' md: could not open unknown-block(0,22). kobject: 'loop5' (ffff8880a4a9c1a0): kobject_uevent_env md: md_import_device returned -6 kobject: 'loop5' (ffff8880a4a9c1a0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a49271e0): kobject_uevent_env kobject: 'loop3' (ffff8880a49271e0): fill_kobj_path: path = '/devices/virtual/block/loop3' md: could not open unknown-block(0,22). kobject: 'loop0' (ffff88804b1b5520): kobject_uevent_env md: md_import_device returned -6 kobject: 'loop0' (ffff88804b1b5520): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (ffff8880a4a40120): kobject_uevent_env md: could not open unknown-block(0,22). kobject: 'loop4' (ffff8880a4a40120): fill_kobj_path: path = '/devices/virtual/block/loop4' md: md_import_device returned -6