====================================================== WARNING: possible circular locking dependency detected 4.19.85-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.1/13432 is trying to acquire lock: 0000000064395a3d (&mm->mmap_sem){++++}, at: __might_fault+0xfb/0x1e0 mm/memory.c:4637 but task is already holding lock: 00000000d51c8b5d (&rp->fetch_lock){+.+.}, at: mon_bin_fetch+0x37/0x340 drivers/usb/mon/mon_bin.c:909 kobject: 'loop5' (0000000088f5e736): kobject_uevent_env which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&rp->fetch_lock){+.+.}: __mutex_lock_common kernel/locking/mutex.c:925 [inline] __mutex_lock+0xf7/0x1300 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 kobject: 'loop5' (0000000088f5e736): fill_kobj_path: path = '/devices/virtual/block/loop5' mon_bin_vma_fault+0x73/0x2d0 drivers/usb/mon/mon_bin.c:1237 __do_fault+0x111/0x480 mm/memory.c:3269 do_cow_fault mm/memory.c:3710 [inline] do_fault mm/memory.c:3812 [inline] handle_pte_fault mm/memory.c:4041 [inline] __handle_mm_fault+0xf6d/0x3f80 mm/memory.c:4165 handle_mm_fault+0x1b5/0x690 mm/memory.c:4202 faultin_page mm/gup.c:530 [inline] __get_user_pages+0x609/0x17a0 mm/gup.c:730 populate_vma_page_range+0x20d/0x2a0 mm/gup.c:1234 __mm_populate+0x204/0x380 mm/gup.c:1282 mm_populate include/linux/mm.h:2323 [inline] vm_mmap_pgoff+0x213/0x230 mm/util.c:362 ksys_mmap_pgoff+0x4aa/0x630 mm/mmap.c:1586 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:100 [inline] __se_sys_mmap arch/x86/kernel/sys_x86_64.c:91 [inline] __x64_sys_mmap+0xe9/0x1b0 arch/x86/kernel/sys_x86_64.c:91 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #0 (&mm->mmap_sem){++++}: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3903 __might_fault mm/memory.c:4638 [inline] __might_fault+0x15e/0x1e0 mm/memory.c:4623 mon_bin_fetch+0x26f/0x340 drivers/usb/mon/mon_bin.c:928 mon_bin_ioctl+0x21e/0xc80 drivers/usb/mon/mon_bin.c:1091 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xd5f/0x1380 fs/ioctl.c:688 ksys_ioctl+0xab/0xd0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:710 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&rp->fetch_lock); lock(&mm->mmap_sem); lock(&rp->fetch_lock); lock(&mm->mmap_sem); *** DEADLOCK *** 1 lock held by syz-executor.1/13432: #0: 00000000d51c8b5d (&rp->fetch_lock){+.+.}, at: mon_bin_fetch+0x37/0x340 drivers/usb/mon/mon_bin.c:909 stack backtrace: CPU: 1 PID: 13432 Comm: syz-executor.1 Not tainted 4.19.85-syzkaller #0 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+0x197/0x210 lib/dump_stack.c:118 print_circular_bug.isra.0.cold+0x1cc/0x28f kernel/locking/lockdep.c:1221 check_prev_add kernel/locking/lockdep.c:1861 [inline] check_prevs_add kernel/locking/lockdep.c:1974 [inline] validate_chain kernel/locking/lockdep.c:2415 [inline] __lock_acquire+0x2e19/0x49c0 kernel/locking/lockdep.c:3411 lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3903 __might_fault mm/memory.c:4638 [inline] __might_fault+0x15e/0x1e0 mm/memory.c:4623 mon_bin_fetch+0x26f/0x340 drivers/usb/mon/mon_bin.c:928 mon_bin_ioctl+0x21e/0xc80 drivers/usb/mon/mon_bin.c:1091 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xd5f/0x1380 fs/ioctl.c:688 ksys_ioctl+0xab/0xd0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:710 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45a639 Code: ad b6 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 b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f479938cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a639 RDX: 0000000020000100 RSI: 00000000c0109207 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f479938d6d4 R13: 00000000004c416b R14: 00000000004d8770 R15: 00000000ffffffff EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps superblock kobject: 'loop0' (000000006ee686bb): kobject_uevent_env kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (0000000000a08bf3): kobject_add_internal: parent: 'ext4', set: '' EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue kobject: 'loop5' (0000000000a08bf3): kobject_cleanup, parent (null) kobject: 'loop5' (0000000000a08bf3): calling ktype release kobject: 'loop5': free name kobject: 'loop5' (0000000088f5e736): kobject_uevent_env kobject: 'loop5' (0000000088f5e736): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (000000006ee686bb): kobject_uevent_env kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (000000006ee686bb): kobject_uevent_env kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (00000000f8fddbf3): kobject_uevent_env kobject: 'loop1' (00000000f8fddbf3): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (000000006ee686bb): kobject_uevent_env kobject: 'loop5' (0000000088f5e736): kobject_uevent_env kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (0000000088f5e736): fill_kobj_path: path = '/devices/virtual/block/loop5' EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock kobject: 'loop0' (000000006ee686bb): kobject_uevent_env EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps superblock kobject: 'loop5' (000000005c4a3cc3): kobject_add_internal: parent: 'ext4', set: '' EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue kobject: 'loop5' (000000005c4a3cc3): kobject_cleanup, parent (null) kobject: 'loop5' (000000005c4a3cc3): calling ktype release kobject: 'loop5': free name kobject: 'loop5' (0000000088f5e736): kobject_uevent_env kobject: 'loop5' (0000000088f5e736): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (000000006ee686bb): kobject_uevent_env kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (00000000f8fddbf3): kobject_uevent_env kobject: 'loop1' (00000000f8fddbf3): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (000000006ee686bb): kobject_uevent_env kobject: 'loop5' (0000000088f5e736): kobject_uevent_env kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (0000000088f5e736): fill_kobj_path: path = '/devices/virtual/block/loop5' EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps superblock kobject: 'loop0' (000000006ee686bb): kobject_uevent_env kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000c0a38f2e): kobject_add_internal: parent: 'ext4', set: '' EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue kobject: 'loop0' (000000006ee686bb): kobject_uevent_env kobject: 'loop5' (00000000c0a38f2e): kobject_cleanup, parent (null) kobject: 'loop5' (00000000c0a38f2e): calling ktype release kobject: 'loop5': free name kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (0000000088f5e736): kobject_uevent_env kobject: 'loop5' (0000000088f5e736): fill_kobj_path: path = '/devices/virtual/block/loop5' net_ratelimit: 22 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop1' (00000000f8fddbf3): kobject_uevent_env kobject: 'loop1' (00000000f8fddbf3): fill_kobj_path: path = '/devices/virtual/block/loop1' overlayfs: failed to resolve './file0': -2 kobject: 'loop0' (000000006ee686bb): kobject_uevent_env kobject: 'loop5' (0000000088f5e736): kobject_uevent_env kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (0000000088f5e736): fill_kobj_path: path = '/devices/virtual/block/loop5' overlayfs: failed to resolve './file0': -2 EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps superblock kobject: 'loop0' (000000006ee686bb): kobject_uevent_env kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (0000000084fc6dbc): kobject_add_internal: parent: 'ext4', set: '' overlayfs: failed to resolve './file0': -2 EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue kobject: 'loop0' (000000006ee686bb): kobject_uevent_env kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (0000000084fc6dbc): kobject_cleanup, parent (null) kobject: 'loop5' (0000000084fc6dbc): calling ktype release kobject: 'loop5': free name kobject: 'loop5' (0000000088f5e736): kobject_uevent_env kobject: 'loop5' (0000000088f5e736): fill_kobj_path: path = '/devices/virtual/block/loop5' protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop1' (00000000f8fddbf3): kobject_uevent_env kobject: 'loop1' (00000000f8fddbf3): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (0000000088f5e736): kobject_uevent_env kobject: 'loop5' (0000000088f5e736): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (000000006ee686bb): kobject_uevent_env EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps superblock protocol 88fb is buggy, dev hsr_slave_0 kobject: 'loop5' (00000000205fbc45): kobject_add_internal: parent: 'ext4', set: '' protocol 88fb is buggy, dev hsr_slave_1 EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue kobject: 'loop0' (000000006ee686bb): kobject_uevent_env kobject: 'loop5' (00000000205fbc45): kobject_cleanup, parent (null) kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000205fbc45): calling ktype release kobject: 'loop5': free name kobject: 'loop5' (0000000088f5e736): kobject_uevent_env kobject: 'loop5' (0000000088f5e736): fill_kobj_path: path = '/devices/virtual/block/loop5' overlayfs: failed to resolve './file1': -2 kobject: 'loop0' (000000006ee686bb): kobject_uevent_env kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' protocol 88fb is buggy, dev hsr_slave_0 kobject: 'loop1' (00000000f8fddbf3): kobject_uevent_env kobject: 'loop1' (00000000f8fddbf3): fill_kobj_path: path = '/devices/virtual/block/loop1' overlayfs: failed to resolve './file1': -2 kobject: 'loop5' (0000000088f5e736): kobject_uevent_env kobject: 'loop5' (0000000088f5e736): fill_kobj_path: path = '/devices/virtual/block/loop5' EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps superblock kobject: 'loop0' (000000006ee686bb): kobject_uevent_env kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (0000000064349e94): kobject_add_internal: parent: 'ext4', set: '' EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue kobject: 'loop5' (0000000064349e94): kobject_cleanup, parent (null) overlayfs: failed to resolve './file1': -2 kobject: 'loop5' (0000000064349e94): calling ktype release kobject: 'loop0' (000000006ee686bb): kobject_uevent_env kobject: 'loop5': free name kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (0000000088f5e736): kobject_uevent_env kobject: 'loop5' (0000000088f5e736): fill_kobj_path: path = '/devices/virtual/block/loop5' overlayfs: failed to resolve './file1': -2 kobject: 'loop5' (0000000088f5e736): kobject_uevent_env kobject: 'loop5' (0000000088f5e736): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (000000006ee686bb): kobject_uevent_env EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps superblock kobject: 'loop5' (00000000cc3e701e): kobject_add_internal: parent: 'ext4', set: '' EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue kobject: 'loop5' (00000000cc3e701e): kobject_cleanup, parent (null) kobject: 'loop5' (00000000cc3e701e): calling ktype release kobject: 'loop5': free name kobject: 'loop5' (0000000088f5e736): kobject_uevent_env kobject: 'loop5' (0000000088f5e736): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (00000000f8fddbf3): kobject_uevent_env overlayfs: failed to resolve './file1': -2 kobject: 'loop1' (00000000f8fddbf3): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (0000000088f5e736): kobject_uevent_env kobject: 'loop5' (0000000088f5e736): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (000000006ee686bb): kobject_uevent_env overlayfs: failed to resolve './file1': -2 kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock kobject: 'loop0' (000000006ee686bb): kobject_uevent_env kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps superblock kobject: 'loop5' (0000000039206b2c): kobject_add_internal: parent: 'ext4', set: '' EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue kobject: 'loop5' (0000000039206b2c): kobject_cleanup, parent (null) kobject: 'loop5' (0000000039206b2c): calling ktype release kobject: 'loop5': free name kobject: 'loop5' (0000000088f5e736): kobject_uevent_env kobject: 'loop5' (0000000088f5e736): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (00000000f8fddbf3): kobject_uevent_env kobject: 'loop1' (00000000f8fddbf3): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (000000006ee686bb): kobject_uevent_env kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (0000000088f5e736): kobject_uevent_env kobject: 'loop5' (0000000088f5e736): fill_kobj_path: path = '/devices/virtual/block/loop5' EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock kobject: 'loop0' (000000006ee686bb): kobject_uevent_env EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps superblock kobject: 'loop5' (000000005bd6af47): kobject_add_internal: parent: 'ext4', set: '' overlayfs: failed to resolve './file0': -2 EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue kobject: 'loop0' (000000006ee686bb): kobject_uevent_env kobject: 'loop5' (000000005bd6af47): kobject_cleanup, parent (null) kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (000000005bd6af47): calling ktype release kobject: 'loop5': free name kobject: 'loop5' (0000000088f5e736): kobject_uevent_env kobject: 'loop5' (0000000088f5e736): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (00000000f8fddbf3): kobject_uevent_env overlayfs: failed to resolve './file0': -2 kobject: 'loop1' (00000000f8fddbf3): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (000000006ee686bb): kobject_uevent_env kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (0000000088f5e736): kobject_uevent_env kobject: 'loop5' (0000000088f5e736): fill_kobj_path: path = '/devices/virtual/block/loop5' overlayfs: failed to resolve './file0': -2 EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps superblock kobject: 'loop5' (0000000043c52034): kobject_add_internal: parent: 'ext4', set: '' kobject: 'loop0' (000000006ee686bb): kobject_uevent_env kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue kobject: 'loop5' (0000000043c52034): kobject_cleanup, parent (null) kobject: 'loop5' (0000000043c52034): calling ktype release kobject: 'loop5': free name kobject: 'loop5' (0000000088f5e736): kobject_uevent_env kobject: 'loop5' (0000000088f5e736): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (00000000f8fddbf3): kobject_uevent_env kobject: 'loop1' (00000000f8fddbf3): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (000000006ee686bb): kobject_uevent_env kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (0000000088f5e736): kobject_uevent_env kobject: 'loop5' (0000000088f5e736): fill_kobj_path: path = '/devices/virtual/block/loop5' net_ratelimit: 20 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock kobject: 'loop0' (000000006ee686bb): kobject_uevent_env kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps superblock kobject: 'loop5' (00000000ee0919ac): kobject_add_internal: parent: 'ext4', set: '' EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue kobject: 'loop5' (00000000ee0919ac): kobject_cleanup, parent (null) kobject: 'loop5' (00000000ee0919ac): calling ktype release kobject: 'loop5': free name kobject: 'loop5' (0000000088f5e736): kobject_uevent_env kobject: 'loop5' (0000000088f5e736): fill_kobj_path: path = '/devices/virtual/block/loop5' protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop1' (00000000f8fddbf3): kobject_uevent_env kobject: 'loop1' (00000000f8fddbf3): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (000000006ee686bb): kobject_uevent_env kobject: 'loop5' (0000000088f5e736): kobject_uevent_env kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (0000000088f5e736): fill_kobj_path: path = '/devices/virtual/block/loop5' EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock kobject: 'loop0' (000000006ee686bb): kobject_uevent_env EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps superblock kobject: 'loop5' (000000007f450d67): kobject_add_internal: parent: 'ext4', set: '' EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop5' (000000007f450d67): kobject_cleanup, parent (null) kobject: 'loop5' (000000007f450d67): calling ktype release kobject: 'loop5': free name kobject: 'loop5' (0000000088f5e736): kobject_uevent_env kobject: 'loop5' (0000000088f5e736): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (00000000f8fddbf3): kobject_uevent_env kobject: 'loop1' (00000000f8fddbf3): fill_kobj_path: path = '/devices/virtual/block/loop1' protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 overlayfs: missing 'lowerdir' kobject: 'loop5' (0000000088f5e736): kobject_uevent_env kobject: 'loop5' (0000000088f5e736): fill_kobj_path: path = '/devices/virtual/block/loop5' EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock kobject: 'loop0' (000000006ee686bb): kobject_uevent_env kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps superblock overlayfs: missing 'lowerdir' kobject: 'loop5' (00000000acb17f3c): kobject_add_internal: parent: 'ext4', set: '' kobject: 'loop0' (000000006ee686bb): kobject_uevent_env EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000acb17f3c): kobject_cleanup, parent (null) kobject: 'loop0' (000000006ee686bb): kobject_uevent_env kobject: 'loop0' (000000006ee686bb): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (00000000acb17f3c): calling ktype release kobject: 'loop5': free name overlayfs: missing 'lowerdir' kobject: 'loop5' (0000000088f5e736): kobject_uevent_env kobject: 'loop5' (0000000088f5e736): fill_kobj_path: path = '/devices/virtual/block/loop5'