====================================================== WARNING: possible circular locking dependency detected 4.19.91-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.5/9608 is trying to acquire lock: 000000005ece5ea2 (&ovl_i_mutex_dir_key[depth]){++++}, at: inode_lock_shared include/linux/fs.h:757 [inline] 000000005ece5ea2 (&ovl_i_mutex_dir_key[depth]){++++}, at: lookup_slow+0x4a/0x80 fs/namei.c:1687 but task is already holding lock: 00000000bb2e762a (&sig->cred_guard_mutex){+.+.}, at: __do_sys_perf_event_open+0x80e/0x2a70 kernel/events/core.c:10557 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&sig->cred_guard_mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:925 [inline] __mutex_lock+0xf7/0x1300 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:2738 proc_tgid_io_accounting+0x23/0x30 fs/proc/base.c:2787 proc_single_show+0xf0/0x180 fs/proc/base.c:755 seq_read+0x4ca/0x1110 fs/seq_file.c:229 do_loop_readv_writev fs/read_write.c:701 [inline] do_loop_readv_writev fs/read_write.c:688 [inline] do_iter_read+0x490/0x640 fs/read_write.c:925 vfs_readv+0xf0/0x160 fs/read_write.c:987 kernel_readv fs/splice.c:362 [inline] default_file_splice_read+0x478/0x970 fs/splice.c:417 do_splice_to+0x127/0x180 fs/splice.c:881 splice_direct_to_actor+0x2d3/0x970 fs/splice.c:959 do_splice_direct+0x1da/0x2a0 fs/splice.c:1068 do_sendfile+0x597/0xce0 fs/read_write.c:1447 __do_sys_sendfile64 fs/read_write.c:1508 [inline] __se_sys_sendfile64 fs/read_write.c:1494 [inline] __x64_sys_sendfile64+0x1dd/0x220 fs/read_write.c:1494 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #2 (&p->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 seq_read+0x71/0x1110 fs/seq_file.c:161 do_loop_readv_writev fs/read_write.c:701 [inline] do_loop_readv_writev fs/read_write.c:688 [inline] do_iter_read+0x490/0x640 fs/read_write.c:925 vfs_readv+0xf0/0x160 fs/read_write.c:987 kernel_readv fs/splice.c:362 [inline] default_file_splice_read+0x478/0x970 fs/splice.c:417 do_splice_to+0x127/0x180 fs/splice.c:881 splice_direct_to_actor+0x2d3/0x970 fs/splice.c:959 do_splice_direct+0x1da/0x2a0 fs/splice.c:1068 do_sendfile+0x597/0xce0 fs/read_write.c:1447 __do_sys_sendfile64 fs/read_write.c:1508 [inline] __se_sys_sendfile64 fs/read_write.c:1494 [inline] __x64_sys_sendfile64+0x1dd/0x220 fs/read_write.c:1494 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #1 (sb_writers#4){.+.+}: percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] __sb_start_write+0x208/0x360 fs/super.c:1387 sb_start_write include/linux/fs.h:1578 [inline] mnt_want_write+0x3f/0xc0 fs/namespace.c:360 ovl_want_write+0x76/0xa0 fs/overlayfs/util.c:24 ovl_setattr+0xdd/0x950 fs/overlayfs/inode.c:30 notify_change+0xad7/0xfb0 fs/attr.c:334 utimes_common.isra.0+0x315/0x600 fs/utimes.c:91 do_utimes+0x1f5/0x350 fs/utimes.c:156 __do_sys_utime fs/utimes.c:35 [inline] __se_sys_utime fs/utimes.c:24 [inline] __x64_sys_utime+0x15a/0x1d0 fs/utimes.c:24 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #0 (&ovl_i_mutex_dir_key[depth]){++++}: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3903 down_read+0x3b/0xb0 kernel/locking/rwsem.c:24 inode_lock_shared include/linux/fs.h:757 [inline] lookup_slow+0x4a/0x80 fs/namei.c:1687 walk_component+0x747/0x2000 fs/namei.c:1810 lookup_last fs/namei.c:2273 [inline] path_lookupat.isra.0+0x1f5/0x8d0 fs/namei.c:2318 filename_lookup+0x1b0/0x410 fs/namei.c:2348 kern_path+0x36/0x40 fs/namei.c:2434 create_local_trace_uprobe+0x82/0x490 kernel/trace/trace_uprobe.c:1356 perf_uprobe_init+0x12b/0x210 kernel/trace/trace_event_perf.c:317 perf_uprobe_event_init+0xff/0x190 kernel/events/core.c:8540 perf_try_init_event+0x131/0x2f0 kernel/events/core.c:9815 perf_init_event kernel/events/core.c:9846 [inline] perf_event_alloc.part.0+0x1e3a/0x2f50 kernel/events/core.c:10120 perf_event_alloc kernel/events/core.c:10476 [inline] __do_sys_perf_event_open+0x99f/0x2a70 kernel/events/core.c:10577 __se_sys_perf_event_open kernel/events/core.c:10466 [inline] __x64_sys_perf_event_open+0xbe/0x150 kernel/events/core.c:10466 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: Chain exists of: &ovl_i_mutex_dir_key[depth] --> &p->lock --> &sig->cred_guard_mutex Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&sig->cred_guard_mutex); lock(&p->lock); lock(&sig->cred_guard_mutex); lock(&ovl_i_mutex_dir_key[depth]); *** DEADLOCK *** 2 locks held by syz-executor.5/9608: #0: 00000000bb2e762a (&sig->cred_guard_mutex){+.+.}, at: __do_sys_perf_event_open+0x80e/0x2a70 kernel/events/core.c:10557 #1: 000000008711f453 (&pmus_srcu){....}, at: perf_event_alloc.part.0+0xdf7/0x2f50 kernel/events/core.c:10116 stack backtrace: CPU: 0 PID: 9608 Comm: syz-executor.5 Not tainted 4.19.91-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 down_read+0x3b/0xb0 kernel/locking/rwsem.c:24 inode_lock_shared include/linux/fs.h:757 [inline] lookup_slow+0x4a/0x80 fs/namei.c:1687 walk_component+0x747/0x2000 fs/namei.c:1810 lookup_last fs/namei.c:2273 [inline] path_lookupat.isra.0+0x1f5/0x8d0 fs/namei.c:2318 filename_lookup+0x1b0/0x410 fs/namei.c:2348 kern_path+0x36/0x40 fs/namei.c:2434 create_local_trace_uprobe+0x82/0x490 kernel/trace/trace_uprobe.c:1356 perf_uprobe_init+0x12b/0x210 kernel/trace/trace_event_perf.c:317 perf_uprobe_event_init+0xff/0x190 kernel/events/core.c:8540 perf_try_init_event+0x131/0x2f0 kernel/events/core.c:9815 perf_init_event kernel/events/core.c:9846 [inline] perf_event_alloc.part.0+0x1e3a/0x2f50 kernel/events/core.c:10120 perf_event_alloc kernel/events/core.c:10476 [inline] __do_sys_perf_event_open+0x99f/0x2a70 kernel/events/core.c:10577 __se_sys_perf_event_open kernel/events/core.c:10466 [inline] __x64_sys_perf_event_open+0xbe/0x150 kernel/events/core.c:10466 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45a919 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:00007f9bddf28c78 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 000000000045a919 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000180 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f9bddf296d4 R13: 00000000004c8806 R14: 00000000004dfe30 R15: 00000000ffffffff kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' net_ratelimit: 9 callbacks suppressed 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: 'loop2' (000000004e1d4dfa): kobject_uevent_env kobject: 'loop2' (000000004e1d4dfa): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000024dbf76e): kobject_uevent_env kobject: 'loop3' (0000000024dbf76e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (0000000024dbf76e): kobject_uevent_env kobject: 'loop3' (0000000024dbf76e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000090cd7e6): kobject_uevent_env kobject: 'loop0' (00000000090cd7e6): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (0000000024dbf76e): kobject_uevent_env kobject: 'loop3' (0000000024dbf76e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (000000004e1d4dfa): kobject_uevent_env kobject: 'loop2' (000000004e1d4dfa): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (0000000024dbf76e): kobject_uevent_env kobject: 'loop3' (0000000024dbf76e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop2' (000000004e1d4dfa): kobject_uevent_env kobject: 'loop2' (000000004e1d4dfa): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000090cd7e6): kobject_uevent_env kobject: 'loop0' (00000000090cd7e6): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (0000000024dbf76e): kobject_uevent_env kobject: 'loop3' (0000000024dbf76e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000004e1d4dfa): kobject_uevent_env kobject: 'loop2' (000000004e1d4dfa): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000090cd7e6): kobject_uevent_env kobject: 'loop0' (00000000090cd7e6): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (0000000024dbf76e): kobject_uevent_env kobject: 'loop3' (0000000024dbf76e): fill_kobj_path: path = '/devices/virtual/block/loop3' protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_0 kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000004e1d4dfa): kobject_uevent_env kobject: 'loop2' (000000004e1d4dfa): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (00000000090cd7e6): kobject_uevent_env kobject: 'loop0' (00000000090cd7e6): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (0000000024dbf76e): kobject_uevent_env kobject: 'loop3' (0000000024dbf76e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (0000000024dbf76e): kobject_uevent_env kobject: 'loop3' (0000000024dbf76e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000004e1d4dfa): kobject_uevent_env kobject: 'loop2' (000000004e1d4dfa): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (00000000090cd7e6): kobject_uevent_env kobject: 'loop0' (00000000090cd7e6): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (00000000090cd7e6): kobject_uevent_env kobject: 'loop0' (00000000090cd7e6): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (0000000024dbf76e): kobject_uevent_env kobject: 'loop3' (0000000024dbf76e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (000000004e1d4dfa): kobject_uevent_env kobject: 'loop2' (000000004e1d4dfa): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000024dbf76e): kobject_uevent_env kobject: 'loop3' (0000000024dbf76e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000090cd7e6): kobject_uevent_env kobject: 'loop0' (00000000090cd7e6): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (0000000024dbf76e): kobject_uevent_env kobject: 'loop3' (0000000024dbf76e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop3' (0000000024dbf76e): kobject_uevent_env kobject: 'loop3' (0000000024dbf76e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (0000000024dbf76e): kobject_uevent_env kobject: 'loop3' (0000000024dbf76e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (00000000090cd7e6): kobject_uevent_env kobject: 'loop0' (00000000090cd7e6): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (000000004e1d4dfa): kobject_uevent_env kobject: 'loop2' (000000004e1d4dfa): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (0000000024dbf76e): kobject_uevent_env kobject: 'loop3' (0000000024dbf76e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000004e1d4dfa): kobject_uevent_env kobject: 'loop2' (000000004e1d4dfa): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (00000000090cd7e6): kobject_uevent_env kobject: 'loop0' (00000000090cd7e6): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (0000000024dbf76e): kobject_uevent_env kobject: 'loop3' (0000000024dbf76e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000004e1d4dfa): kobject_uevent_env kobject: 'loop2' (000000004e1d4dfa): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (0000000024dbf76e): kobject_uevent_env kobject: 'loop3' (0000000024dbf76e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000004e1d4dfa): kobject_uevent_env kobject: 'loop2' (000000004e1d4dfa): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000090cd7e6): kobject_uevent_env kobject: 'loop0' (00000000090cd7e6): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (0000000024dbf76e): kobject_uevent_env kobject: 'loop3' (0000000024dbf76e): fill_kobj_path: path = '/devices/virtual/block/loop3' net_ratelimit: 12 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (0000000024dbf76e): kobject_uevent_env kobject: 'loop3' (0000000024dbf76e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (00000000090cd7e6): kobject_uevent_env kobject: 'loop0' (00000000090cd7e6): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (0000000024dbf76e): kobject_uevent_env kobject: 'loop3' (0000000024dbf76e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (0000000024dbf76e): kobject_uevent_env kobject: 'loop3' (0000000024dbf76e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (000000004e1d4dfa): kobject_uevent_env kobject: 'loop2' (000000004e1d4dfa): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000004e1d4dfa): kobject_uevent_env kobject: 'loop2' (000000004e1d4dfa): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (0000000024dbf76e): kobject_uevent_env kobject: 'loop3' (0000000024dbf76e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000090cd7e6): kobject_uevent_env kobject: 'loop0' (00000000090cd7e6): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000004e1d4dfa): kobject_uevent_env kobject: 'loop2' (000000004e1d4dfa): fill_kobj_path: path = '/devices/virtual/block/loop2' 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 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop0' (00000000090cd7e6): kobject_uevent_env kobject: 'loop0' (00000000090cd7e6): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (0000000024dbf76e): kobject_uevent_env kobject: 'loop3' (0000000024dbf76e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (000000004e1d4dfa): kobject_uevent_env kobject: 'loop2' (000000004e1d4dfa): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000004e1d4dfa): kobject_uevent_env kobject: 'loop2' (000000004e1d4dfa): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (00000000090cd7e6): kobject_uevent_env kobject: 'loop0' (00000000090cd7e6): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (0000000024dbf76e): kobject_uevent_env kobject: 'loop3' (0000000024dbf76e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (0000000024dbf76e): kobject_uevent_env kobject: 'loop3' (0000000024dbf76e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000090cd7e6): kobject_uevent_env kobject: 'loop0' (00000000090cd7e6): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop2' (000000004e1d4dfa): kobject_uevent_env kobject: 'loop2' (000000004e1d4dfa): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (00000000090cd7e6): kobject_uevent_env kobject: 'loop0' (00000000090cd7e6): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' overlayfs: overlapping lowerdir path kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000004e1d4dfa): kobject_uevent_env kobject: 'loop2' (000000004e1d4dfa): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' overlayfs: overlapping lowerdir path kobject: 'loop3' (0000000024dbf76e): kobject_uevent_env kobject: 'loop3' (0000000024dbf76e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (000000004e1d4dfa): kobject_uevent_env kobject: 'loop2' (000000004e1d4dfa): fill_kobj_path: path = '/devices/virtual/block/loop2' overlayfs: overlapping lowerdir path kobject: 'loop0' (00000000090cd7e6): kobject_uevent_env kobject: 'loop0' (00000000090cd7e6): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (0000000024dbf76e): kobject_uevent_env kobject: 'loop3' (0000000024dbf76e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000090cd7e6): kobject_uevent_env overlayfs: overlapping lowerdir path kobject: 'loop0' (00000000090cd7e6): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (0000000021957d62): kobject_uevent_env kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000004e1d4dfa): kobject_uevent_env kobject: 'loop2' (000000004e1d4dfa): fill_kobj_path: path = '/devices/virtual/block/loop2' overlayfs: overlapping lowerdir path kobject: 'loop2' (000000004e1d4dfa): kobject_uevent_env kobject: 'loop2' (000000004e1d4dfa): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (0000000021957d62): kobject_uevent_env overlayfs: overlapping lowerdir path overlayfs: overlapping lowerdir path kobject: 'loop1' (0000000021957d62): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (00000000090cd7e6): kobject_uevent_env kobject: 'loop0' (00000000090cd7e6): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000f5c89ea8): kobject_uevent_env kobject: 'loop4' (00000000f5c89ea8): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (0000000024dbf76e): kobject_uevent_env kobject: 'loop3' (0000000024dbf76e): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000090cd7e6): kobject_uevent_env kobject: 'loop0' (00000000090cd7e6): fill_kobj_path: path = '/devices/virtual/block/loop0' overlayfs: overlapping lowerdir path