======================================================
WARNING: possible circular locking dependency detected
5.0.0-rc6+ #73 Not tainted
------------------------------------------------------
syz-executor.3/18862 is trying to acquire lock:
00000000e00c7579 (&sig->cred_guard_mutex){+.+.}, at: do_io_accounting+0x1f4/0x830 fs/proc/base.c:2711

but task is already holding lock:
0000000018976715 (&p->lock){+.+.}, at: seq_read+0x71/0x1130 fs/seq_file.c:161

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #2 (&p->lock){+.+.}:
       __mutex_lock_common kernel/locking/mutex.c:925 [inline]
       __mutex_lock+0xf7/0x1310 kernel/locking/mutex.c:1072
       mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087
       seq_read+0x71/0x1130 fs/seq_file.c:161
       proc_reg_read+0x1fa/0x2c0 fs/proc/inode.c:229
       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+0xf0/0x160 fs/read_write.c:983
       kernel_readv fs/splice.c:362 [inline]
       default_file_splice_read+0x475/0x890 fs/splice.c:417
       do_splice_to+0x12a/0x190 fs/splice.c:880
       do_splice+0xf7c/0x1330 fs/splice.c:1178
       __do_sys_splice fs/splice.c:1419 [inline]
       __se_sys_splice fs/splice.c:1399 [inline]
       __x64_sys_splice+0x2c6/0x330 fs/splice.c:1399
       do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
       entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #1 (&pipe->mutex/1){+.+.}:
       __mutex_lock_common kernel/locking/mutex.c:925 [inline]
       __mutex_lock+0xf7/0x1310 kernel/locking/mutex.c:1072
       mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087
       __pipe_lock fs/pipe.c:83 [inline]
       fifo_open+0x159/0xb00 fs/pipe.c:905
       do_dentry_open+0x47d/0x1130 fs/open.c:771
       vfs_open+0xa0/0xd0 fs/open.c:880
       do_last fs/namei.c:3418 [inline]
       path_openat+0x10d7/0x4690 fs/namei.c:3534
       do_filp_open+0x1a1/0x280 fs/namei.c:3564
       do_open_execat+0x13b/0x6d0 fs/exec.c:856
       __do_execve_file.isra.0+0x178d/0x23f0 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+0x103/0x610 arch/x86/entry/common.c:290
       entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #0 (&sig->cred_guard_mutex){+.+.}:
       lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3841
       __mutex_lock_common kernel/locking/mutex.c:925 [inline]
       __mutex_lock+0xf7/0x1310 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:2711
       proc_tid_io_accounting+0x20/0x30 fs/proc/base.c:2754
       proc_single_show+0xf6/0x180 fs/proc/base.c:739
       seq_read+0x4db/0x1130 fs/seq_file.c:229
       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+0xf0/0x160 fs/read_write.c:983
       do_preadv+0x1c4/0x280 fs/read_write.c:1067
       __do_sys_preadv fs/read_write.c:1117 [inline]
       __se_sys_preadv fs/read_write.c:1112 [inline]
       __x64_sys_preadv+0x9a/0xf0 fs/read_write.c:1112
       do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
       entry_SYSCALL_64_after_hwframe+0x49/0xbe

other info that might help us debug this:

Chain exists of:
  &sig->cred_guard_mutex --> &pipe->mutex/1 --> &p->lock

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&p->lock);
                               lock(&pipe->mutex/1);
                               lock(&p->lock);
  lock(&sig->cred_guard_mutex);

 *** DEADLOCK ***

1 lock held by syz-executor.3/18862:
 #0: 0000000018976715 (&p->lock){+.+.}, at: seq_read+0x71/0x1130 fs/seq_file.c:161

stack backtrace:
CPU: 1 PID: 18862 Comm: syz-executor.3 Not tainted 5.0.0-rc6+ #73
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+0x172/0x1f0 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+0x2f00/0x4700 kernel/locking/lockdep.c:3338
kobject: 'loop4' (0000000011e5b676): kobject_uevent_env
 lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3841
kobject: 'loop4' (0000000011e5b676): fill_kobj_path: path = '/devices/virtual/block/loop4'
 __mutex_lock_common kernel/locking/mutex.c:925 [inline]
 __mutex_lock+0xf7/0x1310 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:2711
 proc_tid_io_accounting+0x20/0x30 fs/proc/base.c:2754
 proc_single_show+0xf6/0x180 fs/proc/base.c:739
 seq_read+0x4db/0x1130 fs/seq_file.c:229
 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+0xf0/0x160 fs/read_write.c:983
 do_preadv+0x1c4/0x280 fs/read_write.c:1067
 __do_sys_preadv fs/read_write.c:1117 [inline]
 __se_sys_preadv fs/read_write.c:1112 [inline]
 __x64_sys_preadv+0x9a/0xf0 fs/read_write.c:1112
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457e29
Code: ad b8 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 b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f3fb69f3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457e29
RDX: 10000000000002a1 RSI: 0000000020000480 RDI: 0000000000000004
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f3fb69f46d4
R13: 00000000004c4934 R14: 00000000004d8170 R15: 00000000ffffffff
kobject: 'loop1' (000000000127a811): kobject_uevent_env
kobject: 'loop1' (000000000127a811): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop2' (000000001c8dd6fe): kobject_uevent_env
kobject: 'loop2' (000000001c8dd6fe): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop5' (00000000c97c667d): kobject_uevent_env
kobject: 'loop5' (00000000c97c667d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop1' (000000000127a811): kobject_uevent_env
kobject: 'loop1' (000000000127a811): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop4' (0000000011e5b676): kobject_uevent_env
kobject: 'loop4' (0000000011e5b676): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop1' (000000000127a811): kobject_uevent_env
kobject: 'loop1' (000000000127a811): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop4' (0000000011e5b676): kobject_uevent_env
kobject: 'loop4' (0000000011e5b676): fill_kobj_path: path = '/devices/virtual/block/loop4'
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
kobject: 'loop3' (000000004aa96a49): kobject_uevent_env
kobject: 'loop3' (000000004aa96a49): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop5' (00000000c97c667d): kobject_uevent_env
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
kobject: 'loop5' (00000000c97c667d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop2' (000000001c8dd6fe): kobject_uevent_env
kobject: 'loop2' (000000001c8dd6fe): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'kvm' (000000004eb5afad): kobject_uevent_env
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'.
kobject: 'loop3' (000000004aa96a49): kobject_uevent_env
kobject: 'loop3' (000000004aa96a49): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'kvm' (000000004eb5afad): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'input20' (0000000044442596): kobject_add_internal: parent: 'input', set: 'devices'
kobject: 'kvm' (000000004eb5afad): kobject_uevent_env
kobject: 'loop1' (000000000127a811): kobject_uevent_env
kobject: 'kvm' (000000004eb5afad): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'loop1' (000000000127a811): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'input20' (0000000044442596): kobject_uevent_env
kobject: 'loop2' (000000001c8dd6fe): kobject_uevent_env
kobject: 'loop2' (000000001c8dd6fe): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'input20' (0000000044442596): fill_kobj_path: path = '/devices/virtual/input/input20'
kobject: 'kvm' (000000004eb5afad): kobject_uevent_env
kobject: 'input20' (0000000044442596): fill_kobj_path: path = '/devices/virtual/input/input20'
kobject: 'loop4' (0000000011e5b676): kobject_uevent_env
input: syz0 as /devices/virtual/input/input20
kobject: 'kvm' (000000004eb5afad): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'mouse1' (000000007331dcf9): kobject_add_internal: parent: 'input20', set: 'devices'
kobject: 'loop4' (0000000011e5b676): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'mouse1' (000000007331dcf9): kobject_uevent_env
kobject: 'mouse1' (000000007331dcf9): fill_kobj_path: path = '/devices/virtual/input/input20/mouse1'
kobject: 'loop5' (00000000c97c667d): kobject_uevent_env
kobject: 'event4' (00000000d0b0470d): kobject_add_internal: parent: 'input20', set: 'devices'
kobject: 'kvm' (000000004eb5afad): kobject_uevent_env
kobject: 'kvm' (000000004eb5afad): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'event4' (00000000d0b0470d): kobject_uevent_env
kobject: 'loop5' (00000000c97c667d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'event4' (00000000d0b0470d): fill_kobj_path: path = '/devices/virtual/input/input20/event4'
kobject: 'loop2' (000000001c8dd6fe): kobject_uevent_env
kobject: 'mouse1' (000000007331dcf9): kobject_uevent_env
nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based  firewall rule not found. Use the iptables CT target to attach helpers instead.
kobject: 'loop2' (000000001c8dd6fe): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'mouse1' (000000007331dcf9): fill_kobj_path: path = '/devices/virtual/input/input20/mouse1'
kobject: 'loop4' (0000000011e5b676): kobject_uevent_env
kobject: 'loop4' (0000000011e5b676): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: '(null)' (0000000023f8d56f): kobject_cleanup, parent 000000007331dcf9
kobject: 'loop2' (000000001c8dd6fe): kobject_uevent_env
kobject: 'loop2' (000000001c8dd6fe): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: '(null)' (0000000023f8d56f): calling ktype release
kobject: 'loop3' (000000004aa96a49): kobject_uevent_env
kobject: 'loop3' (000000004aa96a49): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'mouse1' (000000007331dcf9): kobject_cleanup, parent           (null)
kobject: 'loop1' (000000000127a811): kobject_uevent_env
kobject: 'mouse1' (000000007331dcf9): calling ktype release
kobject: 'loop1' (000000000127a811): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'mouse1': free name
kobject: 'loop2' (000000001c8dd6fe): kobject_uevent_env
kobject: 'loop2' (000000001c8dd6fe): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'event4' (00000000d0b0470d): kobject_uevent_env
kobject: 'loop1' (000000000127a811): kobject_uevent_env
kobject: 'event4' (00000000d0b0470d): fill_kobj_path: path = '/devices/virtual/input/input20/event4'
kobject: 'loop1' (000000000127a811): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop4' (0000000011e5b676): kobject_uevent_env
kobject: '(null)' (0000000056cebbcd): kobject_cleanup, parent 00000000d0b0470d
kobject: 'loop4' (0000000011e5b676): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: '(null)' (0000000056cebbcd): calling ktype release
kobject: 'event4' (00000000d0b0470d): kobject_cleanup, parent           (null)
kobject: 'event4' (00000000d0b0470d): calling ktype release
kobject: 'event4': free name
kobject: 'input20' (0000000044442596): kobject_uevent_env
kobject: 'input20' (0000000044442596): fill_kobj_path: path = '/devices/virtual/input/input20'
kobject: 'input20' (0000000044442596): kobject_cleanup, parent           (null)
kobject: 'input20' (0000000044442596): calling ktype release
kobject: 'input20': free name
kobject: 'input21' (00000000d7fadb73): kobject_add_internal: parent: 'input', set: 'devices'
kobject: 'input21' (00000000d7fadb73): kobject_uevent_env
kobject: 'input21' (00000000d7fadb73): fill_kobj_path: path = '/devices/virtual/input/input21'
kobject: 'input21' (00000000d7fadb73): fill_kobj_path: path = '/devices/virtual/input/input21'
input: syz0 as /devices/virtual/input/input21
kobject: 'mouse1' (000000002654ca08): kobject_add_internal: parent: 'input21', set: 'devices'
kobject: 'mouse1' (000000002654ca08): kobject_uevent_env
kobject: 'mouse1' (000000002654ca08): fill_kobj_path: path = '/devices/virtual/input/input21/mouse1'
kobject: 'event4' (000000000ac16dd2): kobject_add_internal: parent: 'input21', set: 'devices'
kobject: 'event4' (000000000ac16dd2): kobject_uevent_env
kobject: 'event4' (000000000ac16dd2): fill_kobj_path: path = '/devices/virtual/input/input21/event4'
kobject: 'mouse1' (000000002654ca08): kobject_uevent_env
kobject: 'mouse1' (000000002654ca08): fill_kobj_path: path = '/devices/virtual/input/input21/mouse1'
kobject: '(null)' (000000001594cc67): kobject_cleanup, parent 000000002654ca08
kobject: '(null)' (000000001594cc67): calling ktype release
kobject: 'mouse1' (000000002654ca08): kobject_cleanup, parent           (null)
kobject: 'mouse1' (000000002654ca08): calling ktype release
kobject: 'mouse1': free name
kobject: 'event4' (000000000ac16dd2): kobject_uevent_env
kobject: 'event4' (000000000ac16dd2): fill_kobj_path: path = '/devices/virtual/input/input21/event4'
kobject: '(null)' (0000000051655141): kobject_cleanup, parent 000000000ac16dd2
kobject: '(null)' (0000000051655141): calling ktype release
kobject: 'event4' (000000000ac16dd2): kobject_cleanup, parent           (null)
kobject: 'event4' (000000000ac16dd2): calling ktype release
kobject: 'event4': free name
kobject: 'input21' (00000000d7fadb73): kobject_uevent_env
kobject: 'input21' (00000000d7fadb73): fill_kobj_path: path = '/devices/virtual/input/input21'
kobject: 'input21' (00000000d7fadb73): kobject_cleanup, parent           (null)
kobject: 'input21' (00000000d7fadb73): calling ktype release
kobject: 'input21': free name
kobject: 'loop5' (00000000c97c667d): kobject_uevent_env
kobject: 'loop5' (00000000c97c667d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop2' (000000001c8dd6fe): kobject_uevent_env
kobject: 'loop2' (000000001c8dd6fe): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (000000000127a811): kobject_uevent_env
kobject: 'loop1' (000000000127a811): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop4' (0000000011e5b676): kobject_uevent_env
kobject: 'loop4' (0000000011e5b676): fill_kobj_path: path = '/devices/virtual/block/loop4'
kernel msg: ebtables bug: please report to author: Wrong len argument
kobject: 'loop5' (00000000c97c667d): kobject_uevent_env
kobject: 'loop5' (00000000c97c667d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kernel msg: ebtables bug: please report to author: Wrong len argument
kobject: 'loop3' (000000004aa96a49): kobject_uevent_env
kobject: 'loop3' (000000004aa96a49): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (000000001c8dd6fe): kobject_uevent_env
kobject: 'loop2' (000000001c8dd6fe): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop5' (00000000c97c667d): kobject_uevent_env
kobject: 'loop5' (00000000c97c667d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop2' (000000001c8dd6fe): kobject_uevent_env
kobject: 'loop2' (000000001c8dd6fe): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop5' (00000000c97c667d): kobject_uevent_env
kobject: 'loop5' (00000000c97c667d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop3' (000000004aa96a49): kobject_uevent_env
kobject: 'loop3' (000000004aa96a49): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (000000001c8dd6fe): kobject_uevent_env
kobject: 'loop2' (000000001c8dd6fe): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (000000000127a811): kobject_uevent_env
kobject: 'loop1' (000000000127a811): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop5' (00000000c97c667d): kobject_uevent_env
kobject: 'loop5' (00000000c97c667d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop4' (0000000011e5b676): kobject_uevent_env
kobject: 'loop4' (0000000011e5b676): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop2' (000000001c8dd6fe): kobject_uevent_env
kobject: 'loop2' (000000001c8dd6fe): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (000000004aa96a49): kobject_uevent_env
kobject: 'loop3' (000000004aa96a49): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (000000001c8dd6fe): kobject_uevent_env
kobject: 'loop4' (0000000011e5b676): kobject_uevent_env
kobject: 'loop4' (0000000011e5b676): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop2' (000000001c8dd6fe): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (000000000127a811): kobject_uevent_env
kobject: 'loop1' (000000000127a811): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: '7:0' (000000005d2eb41f): kobject_add_internal: parent: 'bdi', set: 'devices'
kobject: 'loop4' (0000000011e5b676): kobject_uevent_env
kobject: '7:0' (000000005d2eb41f): kobject_uevent_env
kobject: 'loop4' (0000000011e5b676): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: '7:0' (000000005d2eb41f): fill_kobj_path: path = '/devices/virtual/bdi/7:0'
kobject: 'loop2' (000000001c8dd6fe): kobject_uevent_env
kobject: 'loop0' (000000004adc2ef7): kobject_add_internal: parent: 'block', set: 'devices'
kobject: 'loop2' (000000001c8dd6fe): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop0' (000000004adc2ef7): kobject_uevent_env
kobject: 'loop0' (000000004adc2ef7): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'loop1' (000000000127a811): kobject_uevent_env
kobject: 'holders' (000000009b644df1): kobject_add_internal: parent: 'loop0', set: '<NULL>'
kobject: 'loop1' (000000000127a811): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'slaves' (000000006fac6e24): kobject_add_internal: parent: 'loop0', set: '<NULL>'
kobject: 'loop1' (000000000127a811): kobject_uevent_env
kobject: 'loop0' (000000004adc2ef7): kobject_uevent_env
kobject: 'loop1' (000000000127a811): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop0' (000000004adc2ef7): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop4' (0000000011e5b676): kobject_uevent_env
kobject: 'queue' (00000000f35d1b0b): kobject_add_internal: parent: 'loop0', set: '<NULL>'
kobject: 'loop4' (0000000011e5b676): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'mq' (000000003fddf7de): kobject_add_internal: parent: 'loop0', set: '<NULL>'
kobject: 'loop2' (000000001c8dd6fe): kobject_uevent_env
kobject: 'mq' (000000003fddf7de): kobject_uevent_env
kobject: 'loop2' (000000001c8dd6fe): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'mq' (000000003fddf7de): kobject_uevent_env: filter function caused the event to drop!
kobject: 'loop3' (000000004aa96a49): kobject_uevent_env
kobject: '0' (00000000b3cc8bda): kobject_add_internal: parent: 'mq', set: '<NULL>'
kobject: 'loop3' (000000004aa96a49): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'cpu0' (00000000b3691228): kobject_add_internal: parent: '0', set: '<NULL>'
kobject: 'loop1' (000000000127a811): kobject_uevent_env
kobject: 'cpu1' (0000000082d5a475): kobject_add_internal: parent: '0', set: '<NULL>'
kobject: 'loop1' (000000000127a811): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop5' (00000000c97c667d): kobject_uevent_env
kobject: 'loop5' (00000000c97c667d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'queue' (00000000f35d1b0b): kobject_uevent_env
kobject: 'loop2' (000000001c8dd6fe): kobject_uevent_env
kobject: 'queue' (00000000f35d1b0b): kobject_uevent_env: filter function caused the event to drop!
kobject: 'loop2' (000000001c8dd6fe): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'iosched' (00000000657e5de9): kobject_add_internal: parent: 'queue', set: '<NULL>'
kobject: 'loop4' (0000000011e5b676): kobject_uevent_env
kobject: 'iosched' (00000000657e5de9): kobject_uevent_env
kobject: 'loop4' (0000000011e5b676): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'iosched' (00000000657e5de9): kobject_uevent_env: filter function caused the event to drop!
kobject: 'loop1' (000000000127a811): kobject_uevent_env
kobject: 'integrity' (00000000a9c9c189): kobject_add_internal: parent: 'loop0', set: '<NULL>'
kobject: 'loop1' (000000000127a811): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'integrity' (00000000a9c9c189): kobject_uevent_env
kobject: 'loop2' (000000001c8dd6fe): kobject_uevent_env
kobject: 'integrity' (00000000a9c9c189): kobject_uevent_env: filter function caused the event to drop!
kobject: 'loop2' (000000001c8dd6fe): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'integrity' (00000000a9c9c189): kobject_uevent_env
kobject: 'integrity' (00000000a9c9c189): kobject_uevent_env: filter function caused the event to drop!
kobject: 'loop5' (00000000c97c667d): kobject_uevent_env
kobject: 'loop5' (00000000c97c667d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'integrity' (00000000a9c9c189): kobject_cleanup, parent           (null)
kobject: 'integrity' (00000000a9c9c189): does not have a release() function, it is broken and must be fixed. See Documentation/kobject.txt.
kobject: 'integrity': free name
kobject: '7:0' (000000005d2eb41f): kobject_uevent_env
kobject: '7:0' (000000005d2eb41f): fill_kobj_path: path = '/devices/virtual/bdi/7:0'
kobject: '7:0' (000000005d2eb41f): kobject_cleanup, parent           (null)
kobject: '7:0' (000000005d2eb41f): calling ktype release
kobject: '7:0': free name
kobject: 'mq' (000000003fddf7de): kobject_uevent_env
kobject: 'mq' (000000003fddf7de): kobject_uevent_env: filter function caused the event to drop!
kobject: 'queue' (00000000f35d1b0b): kobject_uevent_env
kobject: 'queue' (00000000f35d1b0b): kobject_uevent_env: filter function caused the event to drop!
kobject: 'iosched' (00000000657e5de9): kobject_uevent_env
kobject: 'iosched' (00000000657e5de9): kobject_uevent_env: attempted to send uevent without kset!
kobject: 'holders' (000000009b644df1): kobject_cleanup, parent 000000004adc2ef7
kobject: 'holders' (000000009b644df1): auto cleanup kobject_del
kobject: 'holders' (000000009b644df1): calling ktype release
kobject: (000000009b644df1): dynamic_kobj_release
kobject: 'holders': free name
kobject: 'slaves' (000000006fac6e24): kobject_cleanup, parent 000000004adc2ef7
kobject: 'slaves' (000000006fac6e24): auto cleanup kobject_del
kobject: 'slaves' (000000006fac6e24): calling ktype release
kobject: (000000006fac6e24): dynamic_kobj_release
kobject: 'slaves': free name
kobject: 'loop0' (000000004adc2ef7): kobject_uevent_env
kobject: 'loop0' (000000004adc2ef7): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'iosched' (00000000657e5de9): kobject_cleanup, parent           (null)
kobject: 'iosched' (00000000657e5de9): calling ktype release
kobject: 'iosched': free name
kobject: 'loop0' (000000004adc2ef7): kobject_cleanup, parent           (null)
kobject: 'loop0' (000000004adc2ef7): calling ktype release
kobject: 'queue' (00000000f35d1b0b): kobject_cleanup, parent           (null)
kobject: 'queue' (00000000f35d1b0b): calling ktype release
kobject: 'queue': free name
kobject: '0' (00000000b3cc8bda): kobject_cleanup, parent           (null)
kobject: '0' (00000000b3cc8bda): calling ktype release
kobject: 'loop0': free name
kobject: '0': free name
kobject: 'cpu0' (00000000b3691228): kobject_cleanup, parent           (null)
kobject: 'cpu0' (00000000b3691228): calling ktype release
kobject: 'cpu0': free name
kobject: 'cpu1' (0000000082d5a475): kobject_cleanup, parent           (null)
kobject: 'cpu1' (0000000082d5a475): calling ktype release
kobject: 'cpu1': free name
kobject: 'mq' (000000003fddf7de): kobject_cleanup, parent           (null)
kobject: 'loop2' (000000001c8dd6fe): kobject_uevent_env
kobject: 'mq' (000000003fddf7de): calling ktype release
kobject: 'loop2' (000000001c8dd6fe): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'mq': free name
kobject: '7:0' (000000004305be6f): kobject_add_internal: parent: 'bdi', set: 'devices'
kobject: '7:0' (000000004305be6f): kobject_uevent_env
kobject: '7:0' (000000004305be6f): fill_kobj_path: path = '/devices/virtual/bdi/7:0'
kobject: 'loop0' (000000005ba98e6d): kobject_add_internal: parent: 'block', set: 'devices'
kobject: 'loop0' (000000005ba98e6d): kobject_uevent_env
kobject: 'loop0' (000000005ba98e6d): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'holders' (0000000016ec09d0): kobject_add_internal: parent: 'loop0', set: '<NULL>'
kobject: 'slaves' (00000000fb36050c): kobject_add_internal: parent: 'loop0', set: '<NULL>'
kobject: 'loop0' (000000005ba98e6d): kobject_uevent_env
kobject: 'loop0' (000000005ba98e6d): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'queue' (00000000888386df): kobject_add_internal: parent: 'loop0', set: '<NULL>'
kobject: 'mq' (00000000018e9da0): kobject_add_internal: parent: 'loop0', set: '<NULL>'
kobject: 'mq' (00000000018e9da0): kobject_uevent_env
kobject: 'mq' (00000000018e9da0): kobject_uevent_env: filter function caused the event to drop!
kobject: '0' (00000000e244bb4d): kobject_add_internal: parent: 'mq', set: '<NULL>'
kobject: 'cpu0' (00000000b3691228): kobject_add_internal: parent: '0', set: '<NULL>'
kobject: 'cpu1' (0000000082d5a475): kobject_add_internal: parent: '0', set: '<NULL>'
kobject: 'queue' (00000000888386df): kobject_uevent_env
kobject: 'queue' (00000000888386df): kobject_uevent_env: filter function caused the event to drop!
kobject: 'iosched' (000000004fd46fb2): kobject_add_internal: parent: 'queue', set: '<NULL>'
kobject: 'iosched' (000000004fd46fb2): kobject_uevent_env
kobject: 'iosched' (000000004fd46fb2): kobject_uevent_env: filter function caused the event to drop!
kobject: 'integrity' (00000000e2cebac4): kobject_add_internal: parent: 'loop0', set: '<NULL>'
kobject: 'integrity' (00000000e2cebac4): kobject_uevent_env
kobject: 'integrity' (00000000e2cebac4): kobject_uevent_env: filter function caused the event to drop!
kobject: 'integrity' (00000000e2cebac4): kobject_uevent_env
kobject: 'integrity' (00000000e2cebac4): kobject_uevent_env: filter function caused the event to drop!
kobject: 'integrity' (00000000e2cebac4): kobject_cleanup, parent           (null)
kobject: 'integrity' (00000000e2cebac4): does not have a release() function, it is broken and must be fixed. See Documentation/kobject.txt.
kobject: 'integrity': free name
kobject: '7:0' (000000004305be6f): kobject_uevent_env
kobject: '7:0' (000000004305be6f): fill_kobj_path: path = '/devices/virtual/bdi/7:0'
kobject: '7:0' (000000004305be6f): kobject_cleanup, parent           (null)
kobject: '7:0' (000000004305be6f): calling ktype release
kobject: '7:0': free name
kobject: 'mq' (00000000018e9da0): kobject_uevent_env
kobject: 'mq' (00000000018e9da0): kobject_uevent_env: filter function caused the event to drop!
kobject: 'queue' (00000000888386df): kobject_uevent_env
kobject: 'queue' (00000000888386df): kobject_uevent_env: filter function caused the event to drop!
kobject: 'iosched' (000000004fd46fb2): kobject_uevent_env
kobject: 'iosched' (000000004fd46fb2): kobject_uevent_env: attempted to send uevent without kset!
kobject: 'holders' (0000000016ec09d0): kobject_cleanup, parent 000000005ba98e6d
kobject: 'holders' (0000000016ec09d0): auto cleanup kobject_del
kobject: 'holders' (0000000016ec09d0): calling ktype release
kobject: (0000000016ec09d0): dynamic_kobj_release
kobject: 'holders': free name
kobject: 'slaves' (00000000fb36050c): kobject_cleanup, parent 000000005ba98e6d
kobject: 'slaves' (00000000fb36050c): auto cleanup kobject_del
kobject: 'slaves' (00000000fb36050c): calling ktype release
kobject: (00000000fb36050c): dynamic_kobj_release
kobject: 'slaves': free name
kobject: 'loop0' (000000005ba98e6d): kobject_uevent_env
kobject: 'loop0' (000000005ba98e6d): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'iosched' (000000004fd46fb2): kobject_cleanup, parent           (null)
kobject: 'iosched' (000000004fd46fb2): calling ktype release
kobject: 'iosched': free name
kobject: '7:0' (000000007a8b7686): kobject_add_internal: parent: 'bdi', set: 'devices'
kobject: '7:0' (000000007a8b7686): kobject_uevent_env
kobject: '7:0' (000000007a8b7686): fill_kobj_path: path = '/devices/virtual/bdi/7:0'
kobject: 'loop0' (00000000c06cb2ee): kobject_add_internal: parent: 'block', set: 'devices'
kobject: 'loop0' (00000000c06cb2ee): kobject_uevent_env
kobject: 'loop0' (00000000c06cb2ee): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'holders' (00000000332c4b22): kobject_add_internal: parent: 'loop0', set: '<NULL>'
kobject: 'slaves' (000000009a88e86e): kobject_add_internal: parent: 'loop0', set: '<NULL>'
kobject: 'loop0' (00000000c06cb2ee): kobject_uevent_env
kobject: 'loop0' (00000000c06cb2ee): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'queue' (00000000da58ad52): kobject_add_internal: parent: 'loop0', set: '<NULL>'
kobject: 'mq' (00000000cbeb279f): kobject_add_internal: parent: 'loop0', set: '<NULL>'
kobject: 'mq' (00000000cbeb279f): kobject_uevent_env
kobject: 'mq' (00000000cbeb279f): kobject_uevent_env: filter function caused the event to drop!
kobject: '0' (00000000d03c5345): kobject_add_internal: parent: 'mq', set: '<NULL>'
kobject: 'cpu0' (00000000907d8ba3): kobject_add_internal: parent: '0', set: '<NULL>'
kobject: 'cpu1' (00000000bf7d6cc1): kobject_add_internal: parent: '0', set: '<NULL>'
kobject: 'queue' (00000000da58ad52): kobject_uevent_env
kobject: 'queue' (00000000da58ad52): kobject_uevent_env: filter function caused the event to drop!
kobject: 'iosched' (00000000dcb67bb4): kobject_add_internal: parent: 'queue', set: '<NULL>'
kobject: 'iosched' (00000000dcb67bb4): kobject_uevent_env
kobject: 'iosched' (00000000dcb67bb4): kobject_uevent_env: filter function caused the event to drop!
kobject: 'integrity' (00000000eef46af9): kobject_add_internal: parent: 'loop0', set: '<NULL>'
kobject: 'integrity' (00000000eef46af9): kobject_uevent_env
kobject: 'integrity' (00000000eef46af9): kobject_uevent_env: filter function caused the event to drop!
kobject: 'loop0' (000000005ba98e6d): kobject_cleanup, parent           (null)
kobject: 'loop0' (000000005ba98e6d): calling ktype release
kobject: 'loop3' (000000004aa96a49): kobject_uevent_env
kobject: 'loop3' (000000004aa96a49): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'queue' (00000000888386df): kobject_cleanup, parent           (null)
kobject: 'queue' (00000000888386df): calling ktype release
kobject: 'integrity' (00000000eef46af9): kobject_uevent_env
kobject: 'queue': free name
kobject: '0' (00000000e244bb4d): kobject_cleanup, parent           (null)
kobject: '0' (00000000e244bb4d): calling ktype release
kobject: 'loop0': free name
kobject: 'integrity' (00000000eef46af9): kobject_uevent_env: filter function caused the event to drop!
kobject: '0': free name
kobject: 'integrity' (00000000eef46af9): kobject_cleanup, parent           (null)
kobject: 'cpu0' (00000000b3691228): kobject_cleanup, parent           (null)
kobject: 'integrity' (00000000eef46af9): does not have a release() function, it is broken and must be fixed. See Documentation/kobject.txt.
kobject: 'cpu0' (00000000b3691228): calling ktype release
kobject: 'integrity': free name
kobject: '7:0' (000000007a8b7686): kobject_uevent_env
kobject: 'cpu0': free name
kobject: 'cpu1' (0000000082d5a475): kobject_cleanup, parent           (null)
kobject: '7:0' (000000007a8b7686): fill_kobj_path: path = '/devices/virtual/bdi/7:0'
kobject: 'cpu1' (0000000082d5a475): calling ktype release
kobject: '7:0' (000000007a8b7686): kobject_cleanup, parent           (null)
kobject: 'cpu1': free name
kobject: '7:0' (000000007a8b7686): calling ktype release
kobject: 'mq' (00000000018e9da0): kobject_cleanup, parent           (null)
kobject: '7:0': free name
kobject: 'mq' (00000000018e9da0): calling ktype release
kobject: 'mq' (00000000cbeb279f): kobject_uevent_env
kobject: 'mq': free name
kobject: 'mq' (00000000cbeb279f): kobject_uevent_env: filter function caused the event to drop!
kobject: 'queue' (00000000da58ad52): kobject_uevent_env
kobject: 'queue' (00000000da58ad52): kobject_uevent_env: filter function caused the event to drop!
kobject: 'iosched' (00000000dcb67bb4): kobject_uevent_env
kobject: 'iosched' (00000000dcb67bb4): kobject_uevent_env: attempted to send uevent without kset!
kobject: 'holders' (00000000332c4b22): kobject_cleanup, parent 00000000c06cb2ee
kobject: 'holders' (00000000332c4b22): auto cleanup kobject_del
kobject: 'holders' (00000000332c4b22): calling ktype release
kobject: (00000000332c4b22): dynamic_kobj_release
kobject: 'holders': free name
kobject: 'slaves' (000000009a88e86e): kobject_cleanup, parent 00000000c06cb2ee
kobject: 'slaves' (000000009a88e86e): auto cleanup kobject_del
kobject: 'slaves' (000000009a88e86e): calling ktype release
kobject: (000000009a88e86e): dynamic_kobj_release
kobject: 'slaves': free name
kobject: 'loop0' (00000000c06cb2ee): kobject_uevent_env
kobject: 'loop0' (00000000c06cb2ee): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'iosched' (00000000dcb67bb4): kobject_cleanup, parent           (null)
kobject: 'iosched' (00000000dcb67bb4): calling ktype release
kobject: 'iosched': free name
kobject: 'loop0' (00000000c06cb2ee): kobject_cleanup, parent           (null)
kobject: 'loop5' (00000000c97c667d): kobject_uevent_env
kobject: '7:0' (000000006673b387): kobject_add_internal: parent: 'bdi', set: 'devices'
kobject: 'loop0' (00000000c06cb2ee): calling ktype release
kobject: 'queue' (00000000da58ad52): kobject_cleanup, parent           (null)
kobject: 'loop5' (00000000c97c667d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop4' (0000000011e5b676): kobject_uevent_env
kobject: '7:0' (000000006673b387): kobject_uevent_env
kobject: 'loop4' (0000000011e5b676): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: '7:0' (000000006673b387): fill_kobj_path: path = '/devices/virtual/bdi/7:0'
kobject: 'queue' (00000000da58ad52): calling ktype release
kobject: 'queue': free name
kobject: '0' (00000000d03c5345): kobject_cleanup, parent           (null)
kobject: 'loop0' (00000000abfe665f): kobject_add_internal: parent: 'block', set: 'devices'
kobject: '0' (00000000d03c5345): calling ktype release
kobject: 'loop0' (00000000abfe665f): kobject_uevent_env
kobject: 'loop0': free name
kobject: '0': free name
kobject: 'loop0' (00000000abfe665f): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'cpu0' (00000000907d8ba3): kobject_cleanup, parent           (null)
kobject: 'holders' (0000000015418387): kobject_add_internal: parent: 'loop0', set: '<NULL>'
kobject: 'cpu0' (00000000907d8ba3): calling ktype release
kobject: 'slaves' (00000000e4309ca2): kobject_add_internal: parent: 'loop0', set: '<NULL>'
kobject: 'cpu0': free name
kobject: 'loop0' (00000000abfe665f): kobject_uevent_env
kobject: 'cpu1' (00000000bf7d6cc1): kobject_cleanup, parent           (null)
kobject: 'cpu1' (00000000bf7d6cc1): calling ktype release
kobject: 'cpu1': free name
kobject: 'mq' (00000000cbeb279f): kobject_cleanup, parent           (null)
kobject: 'mq' (00000000cbeb279f): calling ktype release
kobject: 'mq': free name
kobject: 'loop0' (00000000abfe665f): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'queue' (00000000fa433084): kobject_add_internal: parent: 'loop0', set: '<NULL>'
kobject: 'mq' (000000000da07512): kobject_add_internal: parent: 'loop0', set: '<NULL>'
kobject: 'mq' (000000000da07512): kobject_uevent_env
kobject: 'mq' (000000000da07512): kobject_uevent_env: filter function caused the event to drop!
kobject: '0' (000000008e364a7d): kobject_add_internal: parent: 'mq', set: '<NULL>'
kobject: 'cpu0' (00000000b3691228): kobject_add_internal: parent: '0', set: '<NULL>'
kobject: 'cpu1' (0000000082d5a475): kobject_add_internal: parent: '0', set: '<NULL>'
kobject: 'queue' (00000000fa433084): kobject_uevent_env
kobject: 'queue' (00000000fa433084): kobject_uevent_env: filter function caused the event to drop!
kobject: 'iosched' (0000000095e71b61): kobject_add_internal: parent: 'queue', set: '<NULL>'
kobject: 'iosched' (0000000095e71b61): kobject_uevent_env
kobject: 'iosched' (0000000095e71b61): kobject_uevent_env: filter function caused the event to drop!
kobject: 'integrity' (00000000a440a27f): kobject_add_internal: parent: 'loop0', set: '<NULL>'
kobject: 'integrity' (00000000a440a27f): kobject_uevent_env
kobject: 'integrity' (00000000a440a27f): kobject_uevent_env: filter function caused the event to drop!
kobject: 'loop1' (000000000127a811): kobject_uevent_env
kobject: 'loop1' (000000000127a811): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop0' (00000000abfe665f): kobject_uevent_env
kobject: 'loop0' (00000000abfe665f): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop3' (000000004aa96a49): kobject_uevent_env
kobject: 'loop3' (000000004aa96a49): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop0' (00000000abfe665f): kobject_uevent_env
kobject: 'loop0' (00000000abfe665f): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'integrity' (00000000a440a27f): kobject_uevent_env
kobject: 'loop5' (00000000c97c667d): kobject_uevent_env
kobject: 'integrity' (00000000a440a27f): kobject_uevent_env: filter function caused the event to drop!
kobject: 'loop5' (00000000c97c667d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'integrity' (00000000a440a27f): kobject_cleanup, parent           (null)
kobject: 'integrity' (00000000a440a27f): does not have a release() function, it is broken and must be fixed. See Documentation/kobject.txt.
kobject: 'loop4' (0000000011e5b676): kobject_uevent_env
kobject: 'integrity': free name
kobject: 'loop4' (0000000011e5b676): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: '7:0' (000000006673b387): kobject_uevent_env
kobject: '7:0' (000000006673b387): fill_kobj_path: path = '/devices/virtual/bdi/7:0'
kobject: '7:0' (000000006673b387): kobject_cleanup, parent           (null)
kobject: '7:0' (000000006673b387): calling ktype release
kobject: '7:0': free name
kobject: 'mq' (000000000da07512): kobject_uevent_env
kobject: 'mq' (000000000da07512): kobject_uevent_env: filter function caused the event to drop!
kobject: 'queue' (00000000fa433084): kobject_uevent_env
kobject: 'queue' (00000000fa433084): kobject_uevent_env: filter function caused the event to drop!
kobject: 'iosched' (0000000095e71b61): kobject_uevent_env
kobject: 'iosched' (0000000095e71b61): kobject_uevent_env: attempted to send uevent without kset!
kobject: 'holders' (0000000015418387): kobject_cleanup, parent 00000000abfe665f
kobject: 'holders' (0000000015418387): auto cleanup kobject_del
kobject: 'holders' (0000000015418387): calling ktype release
kobject: (0000000015418387): dynamic_kobj_release
kobject: 'holders': free name
kobject: 'slaves' (00000000e4309ca2): kobject_cleanup, parent 00000000abfe665f
kobject: 'slaves' (00000000e4309ca2): auto cleanup kobject_del
kobject: 'slaves' (00000000e4309ca2): calling ktype release
kobject: (00000000e4309ca2): dynamic_kobj_release
kobject: 'slaves': free name
kobject: 'loop0' (00000000abfe665f): kobject_uevent_env
kobject: 'loop0' (00000000abfe665f): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'iosched' (0000000095e71b61): kobject_cleanup, parent           (null)
kobject: 'iosched' (0000000095e71b61): calling ktype release
kobject: 'iosched': free name
kobject: 'loop0' (00000000abfe665f): kobject_cleanup, parent           (null)
kobject: '7:0' (00000000fdf6c535): kobject_add_internal: parent: 'bdi', set: 'devices'
kobject: 'loop0' (00000000abfe665f): calling ktype release
kobject: 'queue' (00000000fa433084): kobject_cleanup, parent           (null)
kobject: '7:0' (00000000fdf6c535): kobject_uevent_env
kobject: 'queue' (00000000fa433084): calling ktype release
kobject: '7:0' (00000000fdf6c535): fill_kobj_path: path = '/devices/virtual/bdi/7:0'
kobject: 'queue': free name
kobject: '0' (000000008e364a7d): kobject_cleanup, parent           (null)
kobject: '0' (000000008e364a7d): calling ktype release
kobject: 'loop0' (000000002b2b44f1): kobject_add_internal: parent: 'block', set: 'devices'
kobject: 'loop0': free name
kobject: 'loop0' (000000002b2b44f1): kobject_uevent_env
kobject: '0': free name
kobject: 'loop0' (000000002b2b44f1): kobject_uevent_env: uevent_suppress caused the event to drop!
kobject: 'cpu0' (00000000b3691228): kobject_cleanup, parent           (null)
kobject: 'holders' (00000000cb3f9c5d): kobject_add_internal: parent: 'loop0', set: '<NULL>'
kobject: 'slaves' (00000000a3612477): kobject_add_internal: parent: 'loop0', set: '<NULL>'
kobject: 'cpu0' (00000000b3691228): calling ktype release
kobject: 'cpu0': free name
kobject: 'loop0' (000000002b2b44f1): kobject_uevent_env
kobject: 'cpu1' (0000000082d5a475): kobject_cleanup, parent           (null)
kobject: 'loop0' (000000002b2b44f1): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'cpu1' (0000000082d5a475): calling ktype release
kobject: 'queue' (00000000c7a809ae): kobject_add_internal: parent: 'loop0', set: '<NULL>'
kobject: 'cpu1': free name
kobject: 'mq' (000000000da07512): kobject_cleanup, parent           (null)
kobject: 'mq' (0000000019b647ed): kobject_add_internal: parent: 'loop0', set: '<NULL>'
kobject: 'mq' (000000000da07512): calling ktype release
kobject: 'mq' (0000000019b647ed): kobject_uevent_env
kobject: 'mq': free name
kobject: 'mq' (0000000019b647ed): kobject_uevent_env: filter function caused the event to drop!
kobject: '0' (000000000e76f610): kobject_add_internal: parent: 'mq', set: '<NULL>'
kobject: 'cpu0' (00000000907d8ba3): kobject_add_internal: parent: '0', set: '<NULL>'
kobject: 'cpu1' (00000000bf7d6cc1): kobject_add_internal: parent: '0', set: '<NULL>'
kobject: 'queue' (00000000c7a809ae): kobject_uevent_env
kobject: 'queue' (00000000c7a809ae): kobject_uevent_env: filter function caused the event to drop!
kobject: 'iosched' (00000000c3d434e2): kobject_add_internal: parent: 'queue', set: '<NULL>'
kobject: 'iosched' (00000000c3d434e2): kobject_uevent_env
kobject: 'iosched' (00000000c3d434e2): kobject_uevent_env: filter function caused the event to drop!
kobject: 'integrity' (000000000ca765b3): kobject_add_internal: parent: 'loop0', set: '<NULL>'
kobject: 'integrity' (000000000ca765b3): kobject_uevent_env
kobject: 'integrity' (000000000ca765b3): kobject_uevent_env: filter function caused the event to drop!
kobject: 'loop1' (000000000127a811): kobject_uevent_env
kobject: 'loop1' (000000000127a811): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop0' (000000002b2b44f1): kobject_uevent_env
kobject: 'loop0' (000000002b2b44f1): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop4' (0000000011e5b676): kobject_uevent_env
kobject: 'loop4' (0000000011e5b676): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop5' (00000000c97c667d): kobject_uevent_env
kobject: 'loop0' (000000002b2b44f1): kobject_uevent_env
kobject: 'loop5' (00000000c97c667d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop0' (000000002b2b44f1): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop3' (000000004aa96a49): kobject_uevent_env
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
kobject: 'loop3' (000000004aa96a49): fill_kobj_path: path = '/devices/virtual/block/loop3'
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
kobject: 'loop1' (000000000127a811): kobject_uevent_env
CPU: 1 PID: 19340 Comm: syz-executor.1 Not tainted 5.0.0-rc6+ #73
kobject: 'loop1' (000000000127a811): fill_kobj_path: path = '/devices/virtual/block/loop1'
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+0x172/0x1f0 lib/dump_stack.c:113
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0x1b lib/fault-inject.c:149
 __should_failslab+0x121/0x190 mm/failslab.c:32
 should_failslab+0x9/0x14 mm/slab_common.c:1603
 slab_pre_alloc_hook mm/slab.h:423 [inline]
 slab_alloc mm/slab.c:3367 [inline]
 kmem_cache_alloc_trace+0x2d1/0x760 mm/slab.c:3607
kobject: 'loop0' (000000002b2b44f1): kobject_uevent_env
 kmalloc include/linux/slab.h:545 [inline]
 kzalloc include/linux/slab.h:740 [inline]
 do_shmat+0x5c6/0x1090 ipc/shm.c:1494
kobject: 'loop0' (000000002b2b44f1): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop4' (0000000011e5b676): kobject_uevent_env
 __do_sys_shmat ipc/shm.c:1570 [inline]
 __se_sys_shmat ipc/shm.c:1565 [inline]
 __x64_sys_shmat+0xd1/0x170 ipc/shm.c:1565
kobject: 'loop4' (0000000011e5b676): fill_kobj_path: path = '/devices/virtual/block/loop4'
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457e29
kobject: 'loop0' (000000002b2b44f1): kobject_uevent_env
Code: ad b8 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 b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fe4bb4a1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000001e
kobject: 'loop0' (000000002b2b44f1): fill_kobj_path: path = '/devices/virtual/block/loop0'
RAX: ffffffffffffffda RBX: 00007fe4bb4a1c90 RCX: 0000000000457e29
RDX: 0000000000004000 RSI: 0000000020952000 RDI: 0000000000000000
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe4bb4a26d4
R13: 00000000004c601b R14: 00000000004db0e0 R15: 0000000000000003
CPU: 1 PID: 19344 Comm: syz-executor.3 Not tainted 5.0.0-rc6+ #73
kobject: 'loop0' (000000002b2b44f1): kobject_uevent_env
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+0x172/0x1f0 lib/dump_stack.c:113
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0x1b lib/fault-inject.c:149
kobject: 'loop0' (000000002b2b44f1): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop0' (000000002b2b44f1): kobject_uevent_env
 __should_failslab+0x121/0x190 mm/failslab.c:32
 should_failslab+0x9/0x14 mm/slab_common.c:1603
kobject: 'loop0' (000000002b2b44f1): fill_kobj_path: path = '/devices/virtual/block/loop0'
 slab_pre_alloc_hook mm/slab.h:423 [inline]
 slab_alloc mm/slab.c:3367 [inline]
 kmem_cache_alloc+0x2be/0x710 mm/slab.c:3541
 kmem_cache_zalloc include/linux/slab.h:730 [inline]
 ext4_init_io_end+0x29/0x120 fs/ext4/page-io.c:253
kobject: 'loop0' (000000002b2b44f1): kobject_uevent_env
 ext4_writepages+0x10a0/0x3540 fs/ext4/inode.c:2833
kobject: 'loop0' (000000002b2b44f1): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop1' (000000000127a811): kobject_uevent_env
kobject: 'loop1' (000000000127a811): fill_kobj_path: path = '/devices/virtual/block/loop1'
 do_writepages+0xfc/0x2a0 mm/page-writeback.c:2335
kobject: 'loop5' (00000000c97c667d): kobject_uevent_env
kobject: 'loop5' (00000000c97c667d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop2' (000000001c8dd6fe): kobject_uevent_env
kobject: 'loop2' (000000001c8dd6fe): fill_kobj_path: path = '/devices/virtual/block/loop2'
 __filemap_fdatawrite_range+0x26d/0x340 mm/filemap.c:411
 file_write_and_wait_range+0x9a/0x100 mm/filemap.c:730
 __generic_file_fsync+0x79/0x200 fs/libfs.c:977
 ext4_sync_file+0x867/0x14d0 fs/ext4/fsync.c:120
 vfs_fsync_range+0x144/0x230 fs/sync.c:197
 __do_sys_msync mm/msync.c:90 [inline]
 __se_sys_msync mm/msync.c:32 [inline]
 __x64_sys_msync+0x3ec/0x510 mm/msync.c:32
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457e29
Code: ad b8 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 b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f3fb69f3c78 EFLAGS: 00000246 ORIG_RAX: 000000000000001a
RAX: ffffffffffffffda RBX: 00007f3fb69f3c90 RCX: 0000000000457e29
RDX: 0000000000000004 RSI: 087abbe8d1cc6ad9 RDI: 0000000020952000
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f3fb69f46d4
R13: 00000000004c3d5d R14: 00000000004d7030 R15: 0000000000000003
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
kobject: 'loop3' (000000004aa96a49): kobject_uevent_env
kobject: 'loop3' (000000004aa96a49): fill_kobj_path: path = '/devices/virtual/block/loop3'
CPU: 1 PID: 19375 Comm: syz-executor.1 Not tainted 5.0.0-rc6+ #73
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+0x172/0x1f0 lib/dump_stack.c:113
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0x1b lib/fault-inject.c:149
kobject: 'loop5' (00000000c97c667d): kobject_uevent_env
 __should_failslab+0x121/0x190 mm/failslab.c:32
kobject: 'loop5' (00000000c97c667d): fill_kobj_path: path = '/devices/virtual/block/loop5'
 should_failslab+0x9/0x14 mm/slab_common.c:1603
 slab_pre_alloc_hook mm/slab.h:423 [inline]
 slab_alloc mm/slab.c:3367 [inline]
 kmem_cache_alloc+0x2be/0x710 mm/slab.c:3541
 kmem_cache_zalloc include/linux/slab.h:730 [inline]
 __alloc_file+0x27/0x300 fs/file_table.c:100
 alloc_empty_file+0x72/0x170 fs/file_table.c:150
 alloc_file+0x5e/0x4d0 fs/file_table.c:192
 alloc_file_clone+0x26/0xc0 fs/file_table.c:243
 do_shmat+0x63f/0x1090 ipc/shm.c:1500
 __do_sys_shmat ipc/shm.c:1570 [inline]
 __se_sys_shmat ipc/shm.c:1565 [inline]
 __x64_sys_shmat+0xd1/0x170 ipc/shm.c:1565
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457e29
Code: ad b8 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 b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fe4bb4a1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000001e
RAX: ffffffffffffffda RBX: 00007fe4bb4a1c90 RCX: 0000000000457e29
RDX: 0000000000004000 RSI: 0000000020952000 RDI: 0000000000000000
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe4bb4a26d4
R13: 00000000004c601b R14: 00000000004db0e0 R15: 0000000000000003
kobject: 'loop3' (000000004aa96a49): kobject_uevent_env
kobject: 'loop3' (000000004aa96a49): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (000000001c8dd6fe): kobject_uevent_env
kobject: 'loop2' (000000001c8dd6fe): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop0' (000000002b2b44f1): kobject_uevent_env
kobject: 'loop0' (000000002b2b44f1): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop5' (00000000c97c667d): kobject_uevent_env
kobject: 'loop5' (00000000c97c667d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop0' (000000002b2b44f1): kobject_uevent_env
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
kobject: 'loop0' (000000002b2b44f1): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop4' (0000000011e5b676): kobject_uevent_env
CPU: 0 PID: 19406 Comm: syz-executor.1 Not tainted 5.0.0-rc6+ #73
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
kobject: 'loop4' (0000000011e5b676): fill_kobj_path: path = '/devices/virtual/block/loop4'
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0x1b lib/fault-inject.c:149
kobject: 'loop1' (000000000127a811): kobject_uevent_env
kobject: 'loop1' (000000000127a811): fill_kobj_path: path = '/devices/virtual/block/loop1'
 __should_failslab+0x121/0x190 mm/failslab.c:32
kobject: 'loop0' (000000002b2b44f1): kobject_uevent_env
 should_failslab+0x9/0x14 mm/slab_common.c:1603
 slab_pre_alloc_hook mm/slab.h:423 [inline]
 slab_alloc mm/slab.c:3367 [inline]
 kmem_cache_alloc_trace+0x2d1/0x760 mm/slab.c:3607
kobject: 'loop0' (000000002b2b44f1): fill_kobj_path: path = '/devices/virtual/block/loop0'
 kmalloc include/linux/slab.h:545 [inline]
 kzalloc include/linux/slab.h:740 [inline]
 aa_alloc_file_ctx security/apparmor/include/file.h:60 [inline]
 apparmor_file_alloc_security+0x112/0x940 security/apparmor/lsm.c:441
 security_file_alloc+0x69/0xb0 security/security.c:908
 __alloc_file+0xac/0x300 fs/file_table.c:105
 alloc_empty_file+0x72/0x170 fs/file_table.c:150
 alloc_file+0x5e/0x4d0 fs/file_table.c:192
 alloc_file_clone+0x26/0xc0 fs/file_table.c:243
 do_shmat+0x63f/0x1090 ipc/shm.c:1500
 __do_sys_shmat ipc/shm.c:1570 [inline]
 __se_sys_shmat ipc/shm.c:1565 [inline]
 __x64_sys_shmat+0xd1/0x170 ipc/shm.c:1565
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457e29
Code: ad b8 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 b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fe4bb4a1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000001e
RAX: ffffffffffffffda RBX: 00007fe4bb4a1c90 RCX: 0000000000457e29
RDX: 0000000000004000 RSI: 0000000020952000 RDI: 0000000000000000
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe4bb4a26d4
R13: 00000000004c601b R14: 00000000004db0e0 R15: 0000000000000003
kobject: 'loop0' (000000002b2b44f1): kobject_uevent_env
kobject: 'loop0' (000000002b2b44f1): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop3' (000000004aa96a49): kobject_uevent_env
kobject: 'loop3' (000000004aa96a49): fill_kobj_path: path = '/devices/virtual/block/loop3'
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
kobject: 'loop2' (000000001c8dd6fe): kobject_uevent_env
kobject: 'loop2' (000000001c8dd6fe): fill_kobj_path: path = '/devices/virtual/block/loop2'
CPU: 0 PID: 19425 Comm: syz-executor.1 Not tainted 5.0.0-rc6+ #73
kobject: 'loop5' (00000000c97c667d): kobject_uevent_env
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+0x172/0x1f0 lib/dump_stack.c:113
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0x1b lib/fault-inject.c:149
 __should_failslab+0x121/0x190 mm/failslab.c:32
 should_failslab+0x9/0x14 mm/slab_common.c:1603
 slab_pre_alloc_hook mm/slab.h:423 [inline]
 slab_alloc mm/slab.c:3367 [inline]
 kmem_cache_alloc+0x2be/0x710 mm/slab.c:3541
 vm_area_dup+0x21/0x170 kernel/fork.c:341
 __split_vma+0xad/0x570 mm/mmap.c:2659
 __do_munmap+0x2ef/0xef0 mm/mmap.c:2768
 do_munmap mm/mmap.c:2836 [inline]
 mmap_region+0x227/0x1760 mm/mmap.c:1729
kobject: 'loop5' (00000000c97c667d): fill_kobj_path: path = '/devices/virtual/block/loop5'
 do_mmap+0x8e2/0x1080 mm/mmap.c:1559
 do_mmap_pgoff include/linux/mm.h:2379 [inline]
 do_shmat+0xe09/0x1090 ipc/shm.c:1535
kobject: 'loop1' (000000000127a811): kobject_uevent_env
 __do_sys_shmat ipc/shm.c:1570 [inline]
 __se_sys_shmat ipc/shm.c:1565 [inline]
 __x64_sys_shmat+0xd1/0x170 ipc/shm.c:1565
kobject: 'loop1' (000000000127a811): fill_kobj_path: path = '/devices/virtual/block/loop1'
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
kobject: 'loop5' (00000000c97c667d): kobject_uevent_env
RIP: 0033:0x457e29
Code: ad b8 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 b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
kobject: 'loop5' (00000000c97c667d): fill_kobj_path: path = '/devices/virtual/block/loop5'
RSP: 002b:00007fe4bb4a1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000001e
kobject: 'loop0' (000000002b2b44f1): kobject_uevent_env
RAX: ffffffffffffffda RBX: 00007fe4bb4a1c90 RCX: 0000000000457e29
kobject: 'loop0' (000000002b2b44f1): fill_kobj_path: path = '/devices/virtual/block/loop0'
RDX: 0000000000004000 RSI: 0000000020952000 RDI: 0000000000000000
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe4bb4a26d4
R13: 00000000004c601b R14: 00000000004db0e0 R15: 0000000000000003
kobject: 'loop0' (000000002b2b44f1): kobject_uevent_env
kobject: 'loop4' (0000000011e5b676): kobject_uevent_env
kobject: 'loop0' (000000002b2b44f1): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop4' (0000000011e5b676): fill_kobj_path: path = '/devices/virtual/block/loop4'
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
kobject: 'loop3' (000000004aa96a49): kobject_uevent_env
kobject: 'loop3' (000000004aa96a49): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop5' (00000000c97c667d): kobject_uevent_env
CPU: 1 PID: 19453 Comm: syz-executor.1 Not tainted 5.0.0-rc6+ #73
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
kobject: 'loop5' (00000000c97c667d): fill_kobj_path: path = '/devices/virtual/block/loop5'
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0x1b lib/fault-inject.c:149
kobject: 'loop3' (000000004aa96a49): kobject_uevent_env
 __should_failslab+0x121/0x190 mm/failslab.c:32
 should_failslab+0x9/0x14 mm/slab_common.c:1603
kobject: 'loop3' (000000004aa96a49): fill_kobj_path: path = '/devices/virtual/block/loop3'
 slab_pre_alloc_hook mm/slab.h:423 [inline]
 slab_alloc mm/slab.c:3367 [inline]
 kmem_cache_alloc+0x2be/0x710 mm/slab.c:3541
 vm_area_dup+0x21/0x170 kernel/fork.c:341
 __split_vma+0xad/0x570 mm/mmap.c:2659
 __do_munmap+0x368/0xef0 mm/mmap.c:2777
kobject: 'loop5' (00000000c97c667d): kobject_uevent_env
 do_munmap mm/mmap.c:2836 [inline]
 mmap_region+0x227/0x1760 mm/mmap.c:1729
kobject: 'loop5' (00000000c97c667d): fill_kobj_path: path = '/devices/virtual/block/loop5'
 do_mmap+0x8e2/0x1080 mm/mmap.c:1559
 do_mmap_pgoff include/linux/mm.h:2379 [inline]
 do_shmat+0xe09/0x1090 ipc/shm.c:1535
kobject: 'loop5' (00000000c97c667d): kobject_uevent_env
 __do_sys_shmat ipc/shm.c:1570 [inline]
 __se_sys_shmat ipc/shm.c:1565 [inline]
 __x64_sys_shmat+0xd1/0x170 ipc/shm.c:1565
kobject: 'loop5' (00000000c97c667d): fill_kobj_path: path = '/devices/virtual/block/loop5'
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457e29
kobject: 'loop5' (00000000c97c667d): kobject_uevent_env
Code: ad b8 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 b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fe4bb4a1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000001e
RAX: ffffffffffffffda RBX: 00007fe4bb4a1c90 RCX: 0000000000457e29
RDX: 0000000000004000 RSI: 0000000020952000 RDI: 0000000000000000
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe4bb4a26d4
R13: 00000000004c601b R14: 00000000004db0e0 R15: 0000000000000003
IPVS: ftp: loaded support on port[0] = 21
kobject: 'loop5' (00000000c97c667d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop2' (000000001c8dd6fe): kobject_uevent_env
kobject: 'lo' (0000000059783319): kobject_add_internal: parent: 'net', set: 'devices'
kobject: 'loop2' (000000001c8dd6fe): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'lo' (0000000059783319): kobject_uevent_env
kobject: 'loop0' (000000002b2b44f1): kobject_uevent_env
kobject: 'lo' (0000000059783319): fill_kobj_path: path = '/devices/virtual/net/lo'
kobject: 'loop0' (000000002b2b44f1): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'queues' (000000009c7e2a9c): kobject_add_internal: parent: 'lo', set: '<NULL>'
kobject: 'queues' (000000009c7e2a9c): kobject_uevent_env
kobject: 'queues' (000000009c7e2a9c): kobject_uevent_env: filter function caused the event to drop!
kobject: 'rx-0' (000000007ae1f98e): kobject_add_internal: parent: 'queues', set: 'queues'
kobject: 'rx-0' (000000007ae1f98e): kobject_uevent_env
kobject: 'rx-0' (000000007ae1f98e): fill_kobj_path: path = '/devices/virtual/net/lo/queues/rx-0'