overlayfs: option "workdir=." is useless in a non-upper mount, ignore ====================================================== WARNING: possible circular locking dependency detected 5.0.0-rc3+ #39 Not tainted ------------------------------------------------------ syz-executor0/4477 is trying to acquire lock: 0000000075b3fa09 (&ovl_i_mutex_dir_key[depth]){++++}, at: inode_lock_shared include/linux/fs.h:767 [inline] 0000000075b3fa09 (&ovl_i_mutex_dir_key[depth]){++++}, at: lookup_slow+0x4a/0x80 fs/namei.c:1687 but task is already holding lock: 0000000091a2eb12 (&ovl_i_mutex_dir_key[depth]#2){.+.+}, at: inode_lock_shared include/linux/fs.h:767 [inline] 0000000091a2eb12 (&ovl_i_mutex_dir_key[depth]#2){.+.+}, at: do_last fs/namei.c:3323 [inline] 0000000091a2eb12 (&ovl_i_mutex_dir_key[depth]#2){.+.+}, at: path_openat+0x25e1/0x5650 fs/namei.c:3534 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #4 (&ovl_i_mutex_dir_key[depth]#2){.+.+}: down_read+0x8d/0x120 kernel/locking/rwsem.c:24 inode_lock_shared include/linux/fs.h:767 [inline] do_last fs/namei.c:3323 [inline] path_openat+0x25e1/0x5650 fs/namei.c:3534 do_filp_open+0x26f/0x370 fs/namei.c:3564 do_open_execat+0x20e/0x930 fs/exec.c:856 __do_execve_file.isra.0+0x1966/0x2700 fs/exec.c:1758 do_execveat_common fs/exec.c:1865 [inline] do_execve fs/exec.c:1882 [inline] __do_sys_execve fs/exec.c:1963 [inline] __se_sys_execve fs/exec.c:1958 [inline] __x64_sys_execve+0x8f/0xc0 fs/exec.c:1958 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #3 (&sig->cred_guard_mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:925 [inline] __mutex_lock+0x12f/0x1670 kernel/locking/mutex.c:1072 mutex_lock_killable_nested+0x16/0x20 kernel/locking/mutex.c:1102 do_io_accounting+0x1d1/0xfe0 fs/proc/base.c:2711 proc_tgid_io_accounting+0x23/0x30 fs/proc/base.c:2760 proc_single_show+0xf6/0x180 fs/proc/base.c:739 seq_read+0x4db/0x1130 fs/seq_file.c:229 __vfs_read+0x116/0xb20 fs/read_write.c:416 vfs_read+0x194/0x3e0 fs/read_write.c:452 ksys_pread64+0x183/0x1c0 fs/read_write.c:626 __do_sys_pread64 fs/read_write.c:636 [inline] __se_sys_pread64 fs/read_write.c:633 [inline] __x64_sys_pread64+0x97/0xf0 fs/read_write.c:633 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #2 (&p->lock){+.+.}: __mutex_lock_common kernel/locking/mutex.c:925 [inline] __mutex_lock+0x12f/0x1670 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 seq_read+0x71/0x1130 fs/seq_file.c:161 do_loop_readv_writev fs/read_write.c:700 [inline] do_loop_readv_writev fs/read_write.c:687 [inline] do_iter_read+0x4a9/0x660 fs/read_write.c:921 vfs_readv+0x175/0x1c0 fs/read_write.c:983 kernel_readv fs/splice.c:362 [inline] default_file_splice_read+0x50c/0xac0 fs/splice.c:417 do_splice_to+0x12a/0x190 fs/splice.c:880 splice_direct_to_actor+0x31b/0x9d0 fs/splice.c:957 do_splice_direct+0x2c7/0x420 fs/splice.c:1066 do_sendfile+0x61a/0xe60 fs/read_write.c:1436 __do_sys_sendfile64 fs/read_write.c:1497 [inline] __se_sys_sendfile64 fs/read_write.c:1483 [inline] __x64_sys_sendfile64+0x1f8/0x240 fs/read_write.c:1483 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #1 (sb_writers#3){.+.+}: 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+0x20b/0x360 fs/super.c:1389 sb_start_write include/linux/fs.h:1602 [inline] mnt_want_write+0x3f/0xc0 fs/namespace.c:357 ovl_want_write+0x76/0xa0 fs/overlayfs/util.c:24 ovl_create_object+0x146/0x3b0 fs/overlayfs/dir.c:599 ovl_create+0x28/0x30 fs/overlayfs/dir.c:630 lookup_open+0x1332/0x1b80 fs/namei.c:3234 do_last fs/namei.c:3324 [inline] path_openat+0x1983/0x5650 fs/namei.c:3534 do_filp_open+0x26f/0x370 fs/namei.c:3564 do_sys_open+0x59a/0x7c0 fs/open.c:1063 __do_sys_open fs/open.c:1081 [inline] __se_sys_open fs/open.c:1076 [inline] __x64_sys_open+0x7e/0xc0 fs/open.c:1076 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #0 (&ovl_i_mutex_dir_key[depth]){++++}: lock_acquire+0x1db/0x570 kernel/locking/lockdep.c:3841 down_read+0x8d/0x120 kernel/locking/rwsem.c:24 inode_lock_shared include/linux/fs.h:767 [inline] lookup_slow+0x4a/0x80 fs/namei.c:1687 lookup_one_len_unlocked+0xf6/0x100 fs/namei.c:2572 ovl_lookup_single+0x63/0x880 fs/overlayfs/namei.c:205 ovl_lookup_layer+0x40d/0x4c0 fs/overlayfs/namei.c:285 ovl_lookup+0x140b/0x29b0 fs/overlayfs/namei.c:895 lookup_open+0x726/0x1b80 fs/namei.c:3213 do_last fs/namei.c:3324 [inline] path_openat+0x25fd/0x5650 fs/namei.c:3534 do_filp_open+0x26f/0x370 fs/namei.c:3564 do_open_execat+0x20e/0x930 fs/exec.c:856 __do_execve_file.isra.0+0x1966/0x2700 fs/exec.c:1758 do_execveat_common fs/exec.c:1865 [inline] do_execve fs/exec.c:1882 [inline] __do_sys_execve fs/exec.c:1963 [inline] __se_sys_execve fs/exec.c:1958 [inline] __x64_sys_execve+0x8f/0xc0 fs/exec.c:1958 do_syscall_64+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: &ovl_i_mutex_dir_key[depth] --> &sig->cred_guard_mutex --> &ovl_i_mutex_dir_key[depth]#2 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ovl_i_mutex_dir_key[depth]#2); lock(&sig->cred_guard_mutex); lock(&ovl_i_mutex_dir_key[depth]#2); lock(&ovl_i_mutex_dir_key[depth]); *** DEADLOCK *** 2 locks held by syz-executor0/4477: #0: 00000000f67afca9 (&sig->cred_guard_mutex){+.+.}, at: prepare_bprm_creds fs/exec.c:1407 [inline] #0: 00000000f67afca9 (&sig->cred_guard_mutex){+.+.}, at: __do_execve_file.isra.0+0x45d/0x2700 fs/exec.c:1750 #1: 0000000091a2eb12 (&ovl_i_mutex_dir_key[depth]#2){.+.+}, at: inode_lock_shared include/linux/fs.h:767 [inline] #1: 0000000091a2eb12 (&ovl_i_mutex_dir_key[depth]#2){.+.+}, at: do_last fs/namei.c:3323 [inline] #1: 0000000091a2eb12 (&ovl_i_mutex_dir_key[depth]#2){.+.+}, at: path_openat+0x25e1/0x5650 fs/namei.c:3534 stack backtrace: CPU: 0 PID: 4477 Comm: syz-executor0 Not tainted 5.0.0-rc3+ #39 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 down_read+0x8d/0x120 kernel/locking/rwsem.c:24 inode_lock_shared include/linux/fs.h:767 [inline] lookup_slow+0x4a/0x80 fs/namei.c:1687 lookup_one_len_unlocked+0xf6/0x100 fs/namei.c:2572 ovl_lookup_single+0x63/0x880 fs/overlayfs/namei.c:205 ovl_lookup_layer+0x40d/0x4c0 fs/overlayfs/namei.c:285 ovl_lookup+0x140b/0x29b0 fs/overlayfs/namei.c:895 lookup_open+0x726/0x1b80 fs/namei.c:3213 do_last fs/namei.c:3324 [inline] path_openat+0x25fd/0x5650 fs/namei.c:3534 do_filp_open+0x26f/0x370 fs/namei.c:3564 do_open_execat+0x20e/0x930 fs/exec.c:856 __do_execve_file.isra.0+0x1966/0x2700 fs/exec.c:1758 do_execveat_common fs/exec.c:1865 [inline] do_execve fs/exec.c:1882 [inline] __do_sys_execve fs/exec.c:1963 [inline] __se_sys_execve fs/exec.c:1958 [inline] __x64_sys_execve+0x8f/0xc0 fs/exec.c:1958 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458099 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:00007f15d5920c78 EFLAGS: 00000246 ORIG_RAX: 000000000000003b RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458099 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000040 RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f15d59216d4 R13: 00000000004be6af R14: 00000000004ced68 R15: 00000000ffffffff kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (00000000529c111e): kobject_uevent_env overlayfs: option "workdir=." is useless in a non-upper mount, ignore kobject: 'loop0' (00000000529c111e): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000065552207): kobject_uevent_env kobject: 'loop2' (0000000065552207): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (00000000529c111e): kobject_uevent_env kobject: 'loop0' (00000000529c111e): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' overlayfs: option "workdir=." is useless in a non-upper mount, ignore kobject: 'loop0' (00000000529c111e): kobject_uevent_env kobject: 'loop0' (00000000529c111e): fill_kobj_path: path = '/devices/virtual/block/loop0' overlayfs: option "workdir=." is useless in a non-upper mount, ignore kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (00000000529c111e): kobject_uevent_env kobject: 'loop0' (00000000529c111e): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000065552207): kobject_uevent_env kobject: 'loop2' (0000000065552207): fill_kobj_path: path = '/devices/virtual/block/loop2' audit: type=1804 audit(1548197260.113:462): pid=4551 uid=0 auid=4294967295 ses=4294967295 subj=_ op=invalid_pcr cause=open_writers comm="syz-executor5" name="/root/syzkaller-testdir853877903/syzkaller.iGZO4B/330/bus" dev="sda1" ino=16738 res=1 audit: type=1804 audit(1548197260.143:463): pid=4559 uid=0 auid=4294967295 ses=4294967295 subj=_ op=invalid_pcr cause=ToMToU comm="syz-executor5" name="/root/syzkaller-testdir853877903/syzkaller.iGZO4B/330/bus" dev="sda1" ino=16738 res=1 kobject: 'loop0' (00000000529c111e): kobject_uevent_env audit: type=1804 audit(1548197260.143:464): pid=4559 uid=0 auid=4294967295 ses=4294967295 subj=_ op=invalid_pcr cause=open_writers comm="syz-executor5" name="/root/syzkaller-testdir853877903/syzkaller.iGZO4B/330/bus" dev="sda1" ino=16738 res=1 kobject: 'loop0' (00000000529c111e): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (000000000e73d351): kobject_uevent_env audit: type=1804 audit(1548197260.233:465): pid=4561 uid=0 auid=4294967295 ses=4294967295 subj=_ op=invalid_pcr cause=open_writers comm="syz-executor4" name="/root/syzkaller-testdir091304432/syzkaller.3YFIxw/398/bus" dev="sda1" ino=16866 res=1 kobject: 'loop2' (0000000065552207): kobject_uevent_env kobject: 'loop2' (0000000065552207): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (000000000e73d351): fill_kobj_path: path = '/devices/virtual/misc/kvm' audit: type=1800 audit(1548197260.243:466): pid=4561 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor4" name="bus" dev="sda1" ino=16866 res=0 audit: type=1804 audit(1548197260.273:467): pid=4561 uid=0 auid=4294967295 ses=4294967295 subj=_ op=invalid_pcr cause=ToMToU comm="syz-executor4" name="/root/syzkaller-testdir091304432/syzkaller.3YFIxw/398/bus" dev="sda1" ino=16866 res=1 kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'kvm' (000000000e73d351): kobject_uevent_env audit: type=1804 audit(1548197260.283:468): pid=4555 uid=0 auid=4294967295 ses=4294967295 subj=_ op=invalid_pcr cause=ToMToU comm="syz-executor4" name="/root/syzkaller-testdir091304432/syzkaller.3YFIxw/398/bus" dev="sda1" ino=16866 res=1 kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env kobject: 'kvm' (000000000e73d351): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'kvm' (000000000e73d351): kobject_uevent_env kobject: 'loop0' (00000000529c111e): kobject_uevent_env audit: type=1804 audit(1548197260.353:469): pid=4573 uid=0 auid=4294967295 ses=4294967295 subj=_ op=invalid_pcr cause=open_writers comm="syz-executor4" name="/root/syzkaller-testdir091304432/syzkaller.3YFIxw/398/bus" dev="sda1" ino=16866 res=1 kobject: 'kvm' (000000000e73d351): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (000000000e73d351): kobject_uevent_env kobject: 'loop0' (00000000529c111e): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (000000000e73d351): fill_kobj_path: path = '/devices/virtual/misc/kvm' audit: type=1800 audit(1548197260.353:470): pid=4573 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor4" name="bus" dev="sda1" ino=16866 res=0 kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env kobject: 'kvm' (000000000e73d351): kobject_uevent_env kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'kvm' (000000000e73d351): fill_kobj_path: path = '/devices/virtual/misc/kvm' audit: type=1804 audit(1548197260.353:471): pid=4573 uid=0 auid=4294967295 ses=4294967295 subj=_ op=invalid_pcr cause=ToMToU comm="syz-executor4" name="/root/syzkaller-testdir091304432/syzkaller.3YFIxw/398/bus" dev="sda1" ino=16866 res=1 kobject: 'loop0' (00000000529c111e): kobject_uevent_env kobject: 'kvm' (000000000e73d351): kobject_uevent_env kobject: 'kvm' (000000000e73d351): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop0' (00000000529c111e): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000065552207): kobject_uevent_env kobject: 'loop2' (0000000065552207): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000529c111e): kobject_uevent_env kobject: 'loop0' (00000000529c111e): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (000000000e73d351): kobject_uevent_env kobject: 'kvm' (000000000e73d351): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (00000000529c111e): kobject_uevent_env kobject: 'loop0' (00000000529c111e): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000065552207): kobject_uevent_env kobject: 'loop2' (0000000065552207): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (000000000e73d351): kobject_uevent_env kobject: 'kvm' (000000000e73d351): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env kobject: 'kvm' (000000000e73d351): kobject_uevent_env kobject: 'kvm' (000000000e73d351): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (0000000065552207): kobject_uevent_env kobject: 'loop2' (0000000065552207): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (000000000e73d351): kobject_uevent_env kobject: 'kvm' (000000000e73d351): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (000000000e73d351): kobject_uevent_env kobject: 'kvm' (000000000e73d351): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop0' (00000000529c111e): kobject_uevent_env kobject: 'loop0' (00000000529c111e): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (000000000e73d351): kobject_uevent_env kobject: 'loop2' (0000000065552207): kobject_uevent_env kobject: 'kvm' (000000000e73d351): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (000000000e73d351): kobject_uevent_env kobject: 'loop2' (0000000065552207): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (000000000e73d351): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env netlink: 3 bytes leftover after parsing attributes in process `syz-executor4'. kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env netlink: 3 bytes leftover after parsing attributes in process `syz-executor4'. kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' netlink: 3 bytes leftover after parsing attributes in process `syz-executor4'. kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env kobject: 'kvm' (000000000e73d351): kobject_uevent_env kobject: 'kvm' (000000000e73d351): kobject_uevent_env kobject: 'kvm' (000000000e73d351): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'kvm' (000000000e73d351): fill_kobj_path: path = '/devices/virtual/misc/kvm' netlink: 3 bytes leftover after parsing attributes in process `syz-executor4'. kobject: 'loop2' (0000000065552207): kobject_uevent_env kobject: 'loop2' (0000000065552207): fill_kobj_path: path = '/devices/virtual/block/loop2' netlink: 3 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor1'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor4'. FAT-fs (loop3): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) kobject: 'kvm' (000000000e73d351): kobject_uevent_env netlink: 3 bytes leftover after parsing attributes in process `syz-executor1'. kobject: 'kvm' (000000000e73d351): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop0' (00000000529c111e): kobject_uevent_env kobject: 'kvm' (000000000e73d351): kobject_uevent_env kobject: 'loop0' (00000000529c111e): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (000000000e73d351): fill_kobj_path: path = '/devices/virtual/misc/kvm' netlink: 3 bytes leftover after parsing attributes in process `syz-executor4'. kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' netlink: 3 bytes leftover after parsing attributes in process `syz-executor1'. kobject: 'loop2' (0000000065552207): kobject_uevent_env kobject: 'loop2' (0000000065552207): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (000000000e73d351): kobject_uevent_env kobject: 'loop0' (00000000529c111e): kobject_uevent_env kobject: 'loop0' (00000000529c111e): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (000000000e73d351): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'kvm' (000000000e73d351): kobject_uevent_env kobject: 'kvm' (000000000e73d351): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (0000000065552207): kobject_uevent_env kobject: 'loop2' (0000000065552207): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (000000000e73d351): kobject_uevent_env kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'kvm' (000000000e73d351): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop0' (00000000529c111e): kobject_uevent_env kobject: 'loop0' (00000000529c111e): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000065552207): kobject_uevent_env kobject: 'loop2' (0000000065552207): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (000000000e73d351): kobject_uevent_env kobject: 'kvm' (000000000e73d351): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (0000000065552207): kobject_uevent_env kobject: 'loop2' (0000000065552207): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (000000000e73d351): kobject_uevent_env kobject: 'kvm' (000000000e73d351): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop0' (00000000529c111e): kobject_uevent_env 9pnet: Insufficient options for proto=fd kobject: 'loop0' (00000000529c111e): fill_kobj_path: path = '/devices/virtual/block/loop0' 9pnet: Insufficient options for proto=fd Dead loop on virtual device ip6_vti0, fix it urgently! kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env overlayfs: unrecognized mount option "urdir=./file0" or missing value kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' Dead loop on virtual device ip6_vti0, fix it urgently! kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env overlayfs: unrecognized mount option "urdir=./file0" or missing value Dead loop on virtual device ip6_vti0, fix it urgently! kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' Dead loop on virtual device ip6_vti0, fix it urgently! Dead loop on virtual device ip6_vti0, fix it urgently! Dead loop on virtual device ip6_vti0, fix it urgently! kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' 9pnet: Insufficient options for proto=fd kobject: 'loop2' (0000000065552207): kobject_uevent_env kobject: 'loop2' (0000000065552207): fill_kobj_path: path = '/devices/virtual/block/loop2' 9pnet: Insufficient options for proto=fd overlayfs: unrecognized mount option "urdir=./file0" or missing value kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (00000000529c111e): kobject_uevent_env kobject: 'loop0' (00000000529c111e): fill_kobj_path: path = '/devices/virtual/block/loop0' 9pnet: Insufficient options for proto=fd Dev loop1: unable to read RDB block 15 kobject: 'loop2' (0000000065552207): kobject_uevent_env loop1: unable to read partition table loop1: partition table beyond EOD, truncated kobject: 'loop2' (0000000065552207): fill_kobj_path: path = '/devices/virtual/block/loop2' loop_reread_partitions: partition scan of loop1 () failed (rc=-5) kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env overlayfs: unrecognized mount option "urdir=./file0" or missing value kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' __loop_clr_fd: partition scan of loop1 failed (rc=-22) 9pnet: Insufficient options for proto=fd kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' overlayfs: unrecognized mount option "urdir=./file0" or missing value kobject: 'loop0' (00000000529c111e): kobject_uevent_env kobject: 'loop0' (00000000529c111e): fill_kobj_path: path = '/devices/virtual/block/loop0' 9pnet: Insufficient options for proto=fd kobject: 'loop2' (0000000065552207): kobject_uevent_env overlayfs: unrecognized mount option "urdir=./file0" or missing value kobject: 'loop2' (0000000065552207): fill_kobj_path: path = '/devices/virtual/block/loop2' Dead loop on virtual device ip6_vti0, fix it urgently! kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' overlayfs: unrecognized mount option "urdir=./file0" or missing value Dev loop1: unable to read RDB block 15 overlayfs: unrecognized mount option "urdir=./file0" or missing value loop1: unable to read partition table loop1: partition table beyond EOD, truncated loop_reread_partitions: partition scan of loop1 () failed (rc=-5) kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env overlayfs: unrecognized mount option "urdir=./file0" or missing value overlayfs: unrecognized mount option "urdir=./file0" or missing value kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' overlayfs: unrecognized mount option "urdir=./file0" or missing value kobject: 'loop0' (00000000529c111e): kobject_uevent_env __loop_clr_fd: partition scan of loop1 failed (rc=-22) kobject: 'loop0' (00000000529c111e): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000065552207): kobject_uevent_env 9pnet: Insufficient options for proto=fd kobject: 'loop2' (0000000065552207): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' overlayfs: unrecognized mount option "urdir=./file0" or missing value kobject: 'loop2' (0000000065552207): kobject_uevent_env kobject: 'loop2' (0000000065552207): fill_kobj_path: path = '/devices/virtual/block/loop2' 9pnet: Insufficient options for proto=fd overlayfs: unrecognized mount option "urdir=./file0" or missing value kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' 9pnet: Insufficient options for proto=fd kobject: 'loop0' (00000000529c111e): kobject_uevent_env kobject: 'loop0' (00000000529c111e): fill_kobj_path: path = '/devices/virtual/block/loop0' Dead loop on virtual device ip6_vti0, fix it urgently! Dev loop1: unable to read RDB block 15 loop1: unable to read partition table loop1: partition table beyond EOD, truncated loop_reread_partitions: partition scan of loop1 () failed (rc=-5) kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' __loop_clr_fd: partition scan of loop1 failed (rc=-22) kobject: 'loop2' (0000000065552207): kobject_uevent_env kobject: 'loop2' (0000000065552207): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' 9pnet: Insufficient options for proto=fd kobject: 'loop0' (00000000529c111e): kobject_uevent_env kobject: 'loop0' (00000000529c111e): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000065552207): kobject_uevent_env kobject: 'loop2' (0000000065552207): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop2' (0000000065552207): kobject_uevent_env kobject: 'loop2' (0000000065552207): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (0000000065552207): kobject_uevent_env kobject: 'loop2' (0000000065552207): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000529c111e): kobject_uevent_env kobject: 'loop0' (00000000529c111e): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000065552207): kobject_uevent_env kobject: 'loop2' (0000000065552207): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (0000000065552207): kobject_uevent_env kobject: 'loop2' (0000000065552207): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop2' (0000000065552207): kobject_uevent_env kobject: 'loop2' (0000000065552207): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000529c111e): kobject_uevent_env kobject: 'loop0' (00000000529c111e): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (0000000065552207): kobject_uevent_env kobject: 'loop2' (0000000065552207): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop2' (0000000065552207): kobject_uevent_env kobject: 'loop2' (0000000065552207): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000744a3ba7): kobject_uevent_env kobject: 'loop1' (00000000744a3ba7): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (0000000065552207): kobject_uevent_env kobject: 'loop2' (0000000065552207): fill_kobj_path: path = '/devices/virtual/block/loop2'