Hello, syzbot found the following crash on: HEAD commit: 2dd68cc7fd8c Merge gitolite.kernel.org:/pub/scm/linux/kern.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=111a60e6400000 kernel config: https://syzkaller.appspot.com/x/.config?x=22a62640793a83c9 dashboard link: https://syzkaller.appspot.com/bug?extid=a55ccfc8a853d3cff213 compiler: gcc (GCC) 8.0.1 20180413 (experimental) Unfortunately, I don't have any reproducer for this crash yet. IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+a55ccfc8a853d3cff213@syzkaller.appspotmail.com ntfs: (device loop1): ntfs_fill_super(): Unable to determine device size. team0 (unregistering): Port device team_slave_1 removed kobject: 'team_slave_1' (000000001c55f79f): kobject_uevent_env ====================================================== WARNING: possible circular locking dependency detected kobject: 'team_slave_1' (000000001c55f79f): kobject_uevent_env: uevent_suppress caused the event to drop! 4.19.0-rc5+ #253 Not tainted ------------------------------------------------------ syz-executor1/545 is trying to acquire lock: 00000000b04209e4 (&ovl_i_mutex_dir_key[depth]){++++}, at: inode_lock_shared include/linux/fs.h:748 [inline] 00000000b04209e4 (&ovl_i_mutex_dir_key[depth]){++++}, at: do_last fs/namei.c:3323 [inline] 00000000b04209e4 (&ovl_i_mutex_dir_key[depth]){++++}, at: path_openat+0x250d/0x5160 fs/namei.c:3534 kobject: 'rx-0' (00000000ca3546e9): kobject_cleanup, parent 000000004d034f96 but task is already holding lock: 0000000044500cca (&sig->cred_guard_mutex){+.+.}, at: prepare_bprm_creds+0x53/0x120 fs/exec.c:1404 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+0x166/0x1700 kernel/locking/mutex.c:1072 kobject: 'rx-0' (00000000ca3546e9): auto cleanup 'remove' event mutex_lock_killable_nested+0x16/0x20 kernel/locking/mutex.c:1102 lock_trace+0x4c/0xe0 fs/proc/base.c:384 proc_pid_stack+0x196/0x3b0 fs/proc/base.c:420 proc_single_show+0x101/0x190 fs/proc/base.c:723 seq_read+0x4af/0x1150 fs/seq_file.c:229 do_loop_readv_writev fs/read_write.c:700 [inline] do_iter_read+0x4a3/0x650 fs/read_write.c:924 kobject: 'rx-0' (00000000ca3546e9): kobject_uevent_env vfs_readv+0x175/0x1c0 fs/read_write.c:986 do_preadv+0x1cc/0x280 fs/read_write.c:1070 __do_sys_preadv fs/read_write.c:1120 [inline] __se_sys_preadv fs/read_write.c:1115 [inline] __x64_sys_preadv+0x9a/0xf0 fs/read_write.c:1115 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 kobject: 'rx-0' (00000000ca3546e9): kobject_uevent_env: uevent_suppress caused the event to drop! entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #2 (&p->lock){+.+.}: __mutex_lock_common kernel/locking/mutex.c:925 [inline] __mutex_lock+0x166/0x1700 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 seq_read+0x71/0x1150 fs/seq_file.c:161 do_loop_readv_writev fs/read_write.c:700 [inline] do_iter_read+0x4a3/0x650 fs/read_write.c:924 vfs_readv+0x175/0x1c0 fs/read_write.c:986 kobject: 'rx-0' (00000000ca3546e9): auto cleanup kobject_del kernel_readv fs/splice.c:362 [inline] default_file_splice_read+0x53c/0xb20 fs/splice.c:417 do_splice_to+0x12e/0x190 fs/splice.c:881 splice_direct_to_actor+0x270/0x8f0 fs/splice.c:953 do_splice_direct+0x2d4/0x420 fs/splice.c:1062 do_sendfile+0x62a/0xe20 fs/read_write.c:1440 __do_sys_sendfile64 fs/read_write.c:1495 [inline] __se_sys_sendfile64 fs/read_write.c:1487 [inline] __x64_sys_sendfile64+0x15d/0x250 fs/read_write.c:1487 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 kobject: 'rx-0' (00000000ca3546e9): calling ktype release entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #1 (sb_writers#5){.+.+}: 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+0x214/0x370 fs/super.c:1387 sb_start_write include/linux/fs.h:1566 [inline] mnt_want_write+0x3f/0xc0 fs/namespace.c:360 ovl_want_write+0x76/0xa0 fs/overlayfs/util.c:24 kobject: 'rx-0': free name ovl_create_object+0x142/0x3a0 fs/overlayfs/dir.c:596 ovl_create+0x2b/0x30 fs/overlayfs/dir.c:627 lookup_open+0x1319/0x1b90 fs/namei.c:3234 do_last fs/namei.c:3324 [inline] path_openat+0x15e7/0x5160 fs/namei.c:3534 do_filp_open+0x255/0x380 fs/namei.c:3564 do_sys_open+0x568/0x700 fs/open.c:1063 ksys_open include/linux/syscalls.h:1276 [inline] __do_sys_creat fs/open.c:1121 [inline] __se_sys_creat fs/open.c:1119 [inline] __x64_sys_creat+0x61/0x80 fs/open.c:1119 kobject: 'tx-0' (000000006100c4d9): kobject_cleanup, parent 000000004d034f96 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #0 (&ovl_i_mutex_dir_key[depth]){++++}: lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3900 down_read+0xb0/0x1d0 kernel/locking/rwsem.c:24 inode_lock_shared include/linux/fs.h:748 [inline] do_last fs/namei.c:3323 [inline] path_openat+0x250d/0x5160 fs/namei.c:3534 kobject: 'tx-0' (000000006100c4d9): auto cleanup 'remove' event do_filp_open+0x255/0x380 fs/namei.c:3564 do_open_execat+0x221/0x8e0 fs/exec.c:853 __do_execve_file.isra.33+0x173f/0x2540 fs/exec.c:1755 do_execveat_common fs/exec.c:1866 [inline] do_execve fs/exec.c:1883 [inline] __do_sys_execve fs/exec.c:1964 [inline] __se_sys_execve fs/exec.c:1959 [inline] __x64_sys_execve+0x8f/0xc0 fs/exec.c:1959 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 kobject: 'tx-0' (000000006100c4d9): kobject_uevent_env 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 kobject: 'tx-0' (000000006100c4d9): kobject_uevent_env: uevent_suppress caused the event to drop! ---- ---- lock(&sig->cred_guard_mutex); lock(&p->lock); lock(&sig->cred_guard_mutex); lock(&ovl_i_mutex_dir_key[depth]); *** DEADLOCK *** 1 lock held by syz-executor1/545: kobject: 'tx-0' (000000006100c4d9): auto cleanup kobject_del #0: 0000000044500cca (&sig->cred_guard_mutex){+.+.}, at: prepare_bprm_creds+0x53/0x120 fs/exec.c:1404 stack backtrace: CPU: 1 PID: 545 Comm: syz-executor1 Not tainted 4.19.0-rc5+ #253 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+0x1c4/0x2b4 lib/dump_stack.c:113 kobject: 'tx-0' (000000006100c4d9): calling ktype release print_circular_bug.isra.33.cold.54+0x1bd/0x27d 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+0x33e4/0x4ec0 kernel/locking/lockdep.c:3411 kobject: 'tx-0': free name kobject: 'queues' (000000004d034f96): kobject_cleanup, parent (null) kobject: 'queues' (000000004d034f96): calling ktype release kobject: 'queues' (000000004d034f96): kset_release lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3900 kobject: 'queues': free name down_read+0xb0/0x1d0 kernel/locking/rwsem.c:24 kobject: 'veth1_to_team' (00000000bb1a6fa8): kobject_uevent_env inode_lock_shared include/linux/fs.h:748 [inline] do_last fs/namei.c:3323 [inline] path_openat+0x250d/0x5160 fs/namei.c:3534 kobject: 'veth1_to_team' (00000000bb1a6fa8): kobject_uevent_env: uevent_suppress caused the event to drop! do_filp_open+0x255/0x380 fs/namei.c:3564 do_open_execat+0x221/0x8e0 fs/exec.c:853 __do_execve_file.isra.33+0x173f/0x2540 fs/exec.c:1755 do_execveat_common fs/exec.c:1866 [inline] do_execve fs/exec.c:1883 [inline] __do_sys_execve fs/exec.c:1964 [inline] __se_sys_execve fs/exec.c:1959 [inline] __x64_sys_execve+0x8f/0xc0 fs/exec.c:1959 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457579 Code: 1d b4 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 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f2a0f031c78 EFLAGS: 00000246 ORIG_RAX: 000000000000003b RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457579 RDX: 0000000020000480 RSI: 0000000020000340 RDI: 0000000020000280 RBP: 000000000072c0e0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2a0f0326d4 R13: 00000000004bdbe8 R14: 00000000004cc738 R15: 00000000ffffffff team0 (unregistering): Port device team_slave_0 removed kobject: 'rx-0' (0000000062803feb): kobject_cleanup, parent 000000005ccb07c7 kobject: 'rx-0' (0000000062803feb): auto cleanup 'remove' event kobject: 'rx-0' (0000000062803feb): kobject_uevent_env kobject: 'rx-0' (0000000062803feb): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (0000000062803feb): auto cleanup kobject_del kobject: 'rx-0' (0000000062803feb): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (00000000eeee9c6c): kobject_cleanup, parent 000000005ccb07c7 kobject: 'tx-0' (00000000eeee9c6c): auto cleanup 'remove' event kobject: 'tx-0' (00000000eeee9c6c): kobject_uevent_env kobject: 'tx-0' (00000000eeee9c6c): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-0' (00000000eeee9c6c): auto cleanup kobject_del kobject: 'tx-0' (00000000eeee9c6c): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (000000005ccb07c7): kobject_cleanup, parent (null) kobject: 'queues' (000000005ccb07c7): calling ktype release kobject: 'queues' (000000005ccb07c7): kset_release kobject: 'queues': free name kobject: 'team_slave_0' (000000004579aa4f): kobject_uevent_env kobject: 'team_slave_0' (000000004579aa4f): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (00000000dbec8020): kobject_cleanup, parent 00000000d2bee902 kobject: 'rx-0' (00000000dbec8020): auto cleanup 'remove' event kobject: 'rx-0' (00000000dbec8020): kobject_uevent_env kobject: 'rx-0' (00000000dbec8020): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (00000000dbec8020): auto cleanup kobject_del kobject: 'rx-0' (00000000dbec8020): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (00000000f973539a): kobject_cleanup, parent 00000000d2bee902 kobject: 'tx-0' (00000000f973539a): auto cleanup 'remove' event kobject: 'tx-0' (00000000f973539a): kobject_uevent_env kobject: 'tx-0' (00000000f973539a): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-0' (00000000f973539a): auto cleanup kobject_del kobject: 'tx-0' (00000000f973539a): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (00000000d2bee902): kobject_cleanup, parent (null) kobject: 'queues' (00000000d2bee902): calling ktype release kobject: 'queues' (00000000d2bee902): kset_release kobject: 'queues': free name kobject: 'veth0_to_team' (00000000b181324c): kobject_uevent_env kobject: 'veth0_to_team' (00000000b181324c): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'bonding_slave' (000000004540690a): kobject_cleanup, parent 000000005d5306ea kobject: 'bonding_slave' (000000004540690a): does not have a release() function, it is broken and must be fixed. kobject: 'bonding_slave' (000000004540690a): auto cleanup kobject_del kobject: 'bonding_slave': free name bond0 (unregistering): Releasing backup interface bond_slave_1 kobject: 'rx-0' (0000000080fa1ce8): kobject_cleanup, parent 00000000ecea369f kobject: 'rx-0' (0000000080fa1ce8): auto cleanup 'remove' event kobject: 'rx-0' (0000000080fa1ce8): kobject_uevent_env kobject: 'rx-0' (0000000080fa1ce8): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (0000000080fa1ce8): auto cleanup kobject_del kobject: 'rx-0' (0000000080fa1ce8): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (0000000079ab5609): kobject_cleanup, parent 00000000ecea369f kobject: 'tx-0' (0000000079ab5609): auto cleanup 'remove' event kobject: 'tx-0' (0000000079ab5609): kobject_uevent_env kobject: 'tx-0' (0000000079ab5609): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-0' (0000000079ab5609): auto cleanup kobject_del kobject: 'tx-0' (0000000079ab5609): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (00000000ecea369f): kobject_cleanup, parent (null) kobject: 'queues' (00000000ecea369f): calling ktype release kobject: 'queues' (00000000ecea369f): kset_release kobject: 'queues': free name kobject: 'bond_slave_1' (000000005d5306ea): kobject_uevent_env kobject: 'bond_slave_1' (000000005d5306ea): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (000000002189b377): kobject_cleanup, parent 00000000486dfbf9 kobject: 'rx-0' (000000002189b377): auto cleanup 'remove' event kobject: 'rx-0' (000000002189b377): kobject_uevent_env kobject: 'rx-0' (000000002189b377): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (000000002189b377): auto cleanup kobject_del kobject: 'rx-0' (000000002189b377): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (00000000f1293e07): kobject_cleanup, parent 00000000486dfbf9 kobject: 'tx-0' (00000000f1293e07): auto cleanup 'remove' event kobject: 'tx-0' (00000000f1293e07): kobject_uevent_env kobject: 'tx-0' (00000000f1293e07): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-0' (00000000f1293e07): auto cleanup kobject_del kobject: 'tx-0' (00000000f1293e07): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (00000000486dfbf9): kobject_cleanup, parent (null) kobject: 'queues' (00000000486dfbf9): calling ktype release kobject: 'queues' (00000000486dfbf9): kset_release kobject: 'queues': free name kobject: 'veth1_to_bond' (00000000d95bcf97): kobject_uevent_env kobject: 'veth1_to_bond' (00000000d95bcf97): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'loop1' (000000004467f992): kobject_uevent_env kobject: 'loop1' (000000004467f992): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'bonding_slave' (0000000087891593): kobject_cleanup, parent 00000000f6b09244 kobject: 'bonding_slave' (0000000087891593): does not have a release() function, it is broken and must be fixed. kobject: 'bonding_slave' (0000000087891593): auto cleanup kobject_del kobject: 'bonding_slave': free name bond0 (unregistering): Releasing backup interface bond_slave_0 kobject: 'rx-0' (00000000027562d9): kobject_cleanup, parent 000000005ba0447b kobject: 'rx-0' (00000000027562d9): auto cleanup 'remove' event kobject: 'rx-0' (00000000027562d9): kobject_uevent_env kobject: 'rx-0' (00000000027562d9): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (00000000027562d9): auto cleanup kobject_del kobject: 'rx-0' (00000000027562d9): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (0000000022647e45): kobject_cleanup, parent 000000005ba0447b kobject: 'tx-0' (0000000022647e45): auto cleanup 'remove' event kobject: 'tx-0' (0000000022647e45): kobject_uevent_env kobject: 'tx-0' (0000000022647e45): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-0' (0000000022647e45): auto cleanup kobject_del kobject: 'tx-0' (0000000022647e45): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (000000005ba0447b): kobject_cleanup, parent (null) kobject: 'queues' (000000005ba0447b): calling ktype release kobject: 'queues' (000000005ba0447b): kset_release kobject: 'queues': free name kobject: 'bond_slave_0' (00000000f6b09244): kobject_uevent_env kobject: 'bond_slave_0' (00000000f6b09244): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'loop4' (0000000059e95085): kobject_uevent_env kobject: 'loop4' (0000000059e95085): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'rx-0' (000000005a342d88): kobject_cleanup, parent 00000000bcb329f6 kobject: 'rx-0' (000000005a342d88): auto cleanup 'remove' event kobject: 'rx-0' (000000005a342d88): kobject_uevent_env kobject: 'rx-0' (000000005a342d88): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (000000005a342d88): auto cleanup kobject_del kobject: 'rx-0' (000000005a342d88): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (000000003125a82f): kobject_cleanup, parent 00000000bcb329f6 kobject: 'tx-0' (000000003125a82f): auto cleanup 'remove' event kobject: 'tx-0' (000000003125a82f): kobject_uevent_env kobject: 'tx-0' (000000003125a82f): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-0' (000000003125a82f): auto cleanup kobject_del kobject: 'tx-0' (000000003125a82f): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (00000000bcb329f6): kobject_cleanup, parent (null) kobject: 'queues' (00000000bcb329f6): calling ktype release kobject: 'queues' (00000000bcb329f6): kset_release kobject: 'queues': free name kobject: 'veth0_to_bond' (00000000b0d0fa05): kobject_uevent_env kobject: 'veth0_to_bond' (00000000b0d0fa05): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (0000000081a8822f): kobject_cleanup, parent 0000000093d30697 kobject: 'rx-0' (0000000081a8822f): auto cleanup 'remove' event kobject: 'rx-0' (0000000081a8822f): kobject_uevent_env kobject: 'rx-0' (0000000081a8822f): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (0000000081a8822f): auto cleanup kobject_del kobject: 'rx-0' (0000000081a8822f): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (000000002448554d): kobject_cleanup, parent 0000000093d30697 kobject: 'tx-0' (000000002448554d): auto cleanup 'remove' event kobject: 'tx-0' (000000002448554d): kobject_uevent_env kobject: 'tx-0' (000000002448554d): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-0' (000000002448554d): auto cleanup kobject_del kobject: 'tx-0' (000000002448554d): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (0000000093d30697): kobject_cleanup, parent (null) kobject: 'queues' (0000000093d30697): calling ktype release kobject: 'queues' (0000000093d30697): kset_release kobject: 'queues': free name kobject: 'bridge_slave_1' (00000000f377cd77): kobject_uevent_env kobject: 'bridge_slave_1' (00000000f377cd77): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (00000000b92f3113): kobject_cleanup, parent 00000000bf1a108e kobject: 'rx-0' (00000000b92f3113): auto cleanup 'remove' event kobject: 'rx-0' (00000000b92f3113): kobject_uevent_env kobject: 'rx-0' (00000000b92f3113): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (00000000b92f3113): auto cleanup kobject_del kobject: 'loop1' (000000004467f992): kobject_uevent_env kobject: 'rx-0' (00000000b92f3113): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (00000000b940a2a1): kobject_cleanup, parent 00000000bf1a108e kobject: 'loop1' (000000004467f992): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'tx-0' (00000000b940a2a1): auto cleanup 'remove' event kobject: 'tx-0' (00000000b940a2a1): kobject_uevent_env kobject: 'tx-0' (00000000b940a2a1): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-0' (00000000b940a2a1): auto cleanup kobject_del kobject: 'tx-0' (00000000b940a2a1): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (00000000bf1a108e): kobject_cleanup, parent (null) kobject: 'queues' (00000000bf1a108e): calling ktype release kobject: 'queues' (00000000bf1a108e): kset_release kobject: 'queues': free name kobject: 'veth1_to_bridge' (00000000b1d101dd): kobject_uevent_env kobject: 'veth1_to_bridge' (00000000b1d101dd): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (000000003f30efcb): kobject_cleanup, parent 00000000f67e13e0 kobject: 'loop4' (0000000059e95085): kobject_uevent_env kobject: 'rx-0' (000000003f30efcb): auto cleanup 'remove' event kobject: 'loop4' (0000000059e95085): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'rx-0' (000000003f30efcb): kobject_uevent_env kobject: 'rx-0' (000000003f30efcb): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (000000003f30efcb): auto cleanup kobject_del kobject: 'rx-0' (000000003f30efcb): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (000000001d3b85ea): kobject_cleanup, parent 00000000f67e13e0 kobject: 'tx-0' (000000001d3b85ea): auto cleanup 'remove' event kobject: 'tx-0' (000000001d3b85ea): kobject_uevent_env kobject: 'tx-0' (000000001d3b85ea): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-0' (000000001d3b85ea): auto cleanup kobject_del kobject: 'tx-0' (000000001d3b85ea): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (00000000f67e13e0): kobject_cleanup, parent (null) kobject: 'queues' (00000000f67e13e0): calling ktype release kobject: 'queues' (00000000f67e13e0): kset_release kobject: 'queues': free name kobject: 'bridge_slave_0' (000000004b7322e9): kobject_uevent_env kobject: 'bridge_slave_0' (000000004b7322e9): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (00000000eed99d2a): kobject_cleanup, parent 00000000fe296f3a kobject: 'rx-0' (00000000eed99d2a): auto cleanup 'remove' event kobject: 'rx-0' (00000000eed99d2a): kobject_uevent_env kobject: 'rx-0' (00000000eed99d2a): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (00000000eed99d2a): auto cleanup kobject_del kobject: 'rx-0' (00000000eed99d2a): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (000000007504c6a8): kobject_cleanup, parent 00000000fe296f3a kobject: 'tx-0' (000000007504c6a8): auto cleanup 'remove' event kobject: 'tx-0' (000000007504c6a8): kobject_uevent_env kobject: 'tx-0' (000000007504c6a8): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-0' (000000007504c6a8): auto cleanup kobject_del kobject: 'tx-0' (000000007504c6a8): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (00000000fe296f3a): kobject_cleanup, parent (null) kobject: 'queues' (00000000fe296f3a): calling ktype release kobject: 'queues' (00000000fe296f3a): kset_release kobject: 'queues': free name kobject: 'veth0_to_bridge' (000000008192e49b): kobject_uevent_env kobject: 'veth0_to_bridge' (000000008192e49b): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (00000000edd8dc5f): kobject_cleanup, parent 00000000361c7135 kobject: 'rx-0' (00000000edd8dc5f): auto cleanup 'remove' event kobject: 'rx-0' (00000000edd8dc5f): kobject_uevent_env kobject: 'rx-0' (00000000edd8dc5f): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (00000000edd8dc5f): auto cleanup kobject_del kobject: 'rx-0' (00000000edd8dc5f): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (00000000a3ef359e): kobject_cleanup, parent 00000000361c7135 kobject: 'tx-0' (00000000a3ef359e): auto cleanup 'remove' event kobject: 'tx-0' (00000000a3ef359e): kobject_uevent_env kobject: 'tx-0' (00000000a3ef359e): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-0' (00000000a3ef359e): auto cleanup kobject_del kobject: 'tx-0' (00000000a3ef359e): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (00000000361c7135): kobject_cleanup, parent (null) kobject: 'queues' (00000000361c7135): calling ktype release kobject: 'queues' (00000000361c7135): kset_release kobject: 'queues': free name kobject: 'veth1' (0000000082eb9bf9): kobject_uevent_env kobject: 'veth1' (0000000082eb9bf9): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (00000000eafa234f): kobject_cleanup, parent 00000000b0828830 kobject: 'rx-0' (00000000eafa234f): auto cleanup 'remove' event kobject: 'rx-0' (00000000eafa234f): kobject_uevent_env kobject: 'rx-0' (00000000eafa234f): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (00000000eafa234f): auto cleanup kobject_del kobject: 'rx-0' (00000000eafa234f): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (000000000a051558): kobject_cleanup, parent 00000000b0828830 kobject: 'tx-0' (000000000a051558): auto cleanup 'remove' event kobject: 'tx-0' (000000000a051558): kobject_uevent_env kobject: 'tx-0' (000000000a051558): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-0' (000000000a051558): auto cleanup kobject_del kobject: 'tx-0' (000000000a051558): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (00000000b0828830): kobject_cleanup, parent (null) kobject: 'queues' (00000000b0828830): calling ktype release kobject: 'queues' (00000000b0828830): kset_release kobject: 'queues': free name kobject: 'veth0' (0000000096d924ce): kobject_uevent_env kobject: 'veth0' (0000000096d924ce): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-15' (000000009243e024): kobject_cleanup, parent 0000000050815c59 kobject: 'rx-15' (000000009243e024): auto cleanup 'remove' event kobject: 'rx-15' (000000009243e024): kobject_uevent_env kobject: 'rx-15' (000000009243e024): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-15' (000000009243e024): auto cleanup kobject_del kobject: 'rx-15' (000000009243e024): calling ktype release kobject: 'rx-15': free name kobject: 'rx-14' (00000000e63d5b80): kobject_cleanup, parent 0000000050815c59 kobject: 'rx-14' (00000000e63d5b80): auto cleanup 'remove' event kobject: 'rx-14' (00000000e63d5b80): kobject_uevent_env kobject: 'rx-14' (00000000e63d5b80): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-14' (00000000e63d5b80): auto cleanup kobject_del kobject: 'rx-14' (00000000e63d5b80): calling ktype release kobject: 'rx-14': free name kobject: 'rx-13' (0000000033b47368): kobject_cleanup, parent 0000000050815c59 kobject: 'rx-13' (0000000033b47368): auto cleanup 'remove' event kobject: 'rx-13' (0000000033b47368): kobject_uevent_env kobject: 'rx-13' (0000000033b47368): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-13' (0000000033b47368): auto cleanup kobject_del kobject: 'rx-13' (0000000033b47368): calling ktype release kobject: 'rx-13': free name kobject: 'rx-12' (000000004f0b4934): kobject_cleanup, parent 0000000050815c59 kobject: 'rx-12' (000000004f0b4934): auto cleanup 'remove' event kobject: 'rx-12' (000000004f0b4934): kobject_uevent_env kobject: 'rx-12' (000000004f0b4934): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-12' (000000004f0b4934): auto cleanup kobject_del kobject: 'rx-12' (000000004f0b4934): calling ktype release kobject: 'rx-12': free name kobject: 'rx-11' (000000007cf66a94): kobject_cleanup, parent 0000000050815c59 kobject: 'rx-11' (000000007cf66a94): auto cleanup 'remove' event kobject: 'rx-11' (000000007cf66a94): kobject_uevent_env kobject: 'rx-11' (000000007cf66a94): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-11' (000000007cf66a94): auto cleanup kobject_del kobject: 'rx-11' (000000007cf66a94): calling ktype release kobject: 'rx-11': free name kobject: 'rx-10' (00000000e608ff08): kobject_cleanup, parent 0000000050815c59 kobject: 'rx-10' (00000000e608ff08): auto cleanup 'remove' event kobject: 'rx-10' (00000000e608ff08): kobject_uevent_env kobject: 'rx-10' (00000000e608ff08): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-10' (00000000e608ff08): auto cleanup kobject_del kobject: 'rx-10' (00000000e608ff08): calling ktype release kobject: 'rx-10': free name kobject: 'rx-9' (00000000e07f4b85): kobject_cleanup, parent 0000000050815c59 kobject: 'rx-9' (00000000e07f4b85): auto cleanup 'remove' event kobject: 'rx-9' (00000000e07f4b85): kobject_uevent_env kobject: 'rx-9' (00000000e07f4b85): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-9' (00000000e07f4b85): auto cleanup kobject_del kobject: 'rx-9' (00000000e07f4b85): calling ktype release kobject: 'rx-9': free name kobject: 'rx-8' (00000000baee482a): kobject_cleanup, parent 0000000050815c59 kobject: 'rx-8' (00000000baee482a): auto cleanup 'remove' event kobject: 'rx-8' (00000000baee482a): kobject_uevent_env kobject: 'rx-8' (00000000baee482a): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-8' (00000000baee482a): auto cleanup kobject_del kobject: 'rx-8' (00000000baee482a): calling ktype release kobject: 'rx-8': free name kobject: 'rx-7' (000000009df09645): kobject_cleanup, parent 0000000050815c59 kobject: 'rx-7' (000000009df09645): auto cleanup 'remove' event kobject: 'rx-7' (000000009df09645): kobject_uevent_env kobject: 'rx-7' (000000009df09645): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-7' (000000009df09645): auto cleanup kobject_del kobject: 'rx-7' (000000009df09645): calling ktype release kobject: 'rx-7': free name kobject: 'rx-6' (000000007f6827df): kobject_cleanup, parent 0000000050815c59 kobject: 'rx-6' (000000007f6827df): auto cleanup 'remove' event kobject: 'rx-6' (000000007f6827df): kobject_uevent_env kobject: 'rx-6' (000000007f6827df): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-6' (000000007f6827df): auto cleanup kobject_del kobject: 'rx-6' (000000007f6827df): calling ktype release kobject: 'rx-6': free name kobject: 'rx-5' (0000000095ecebb8): kobject_cleanup, parent 0000000050815c59 kobject: 'rx-5' (0000000095ecebb8): auto cleanup 'remove' event kobject: 'rx-5' (0000000095ecebb8): kobject_uevent_env kobject: 'rx-5' (0000000095ecebb8): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-5' (0000000095ecebb8): auto cleanup kobject_del kobject: 'rx-5' (0000000095ecebb8): calling ktype release kobject: 'rx-5': free name kobject: 'rx-4' (000000004832126c): kobject_cleanup, parent 0000000050815c59 kobject: 'rx-4' (000000004832126c): auto cleanup 'remove' event kobject: 'rx-4' (000000004832126c): kobject_uevent_env kobject: 'rx-4' (000000004832126c): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-4' (000000004832126c): auto cleanup kobject_del kobject: 'rx-4' (000000004832126c): calling ktype release kobject: 'rx-4': free name kobject: 'rx-3' (00000000b31dcd9f): kobject_cleanup, parent 0000000050815c59 kobject: 'rx-3' (00000000b31dcd9f): auto cleanup 'remove' event kobject: 'rx-3' (00000000b31dcd9f): kobject_uevent_env kobject: 'rx-3' (00000000b31dcd9f): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-3' (00000000b31dcd9f): auto cleanup kobject_del kobject: 'rx-3' (00000000b31dcd9f): calling ktype release kobject: 'rx-3': free name kobject: 'rx-2' (000000009df71198): kobject_cleanup, parent 0000000050815c59 kobject: 'rx-2' (000000009df71198): auto cleanup 'remove' event kobject: 'rx-2' (000000009df71198): kobject_uevent_env kobject: 'rx-2' (000000009df71198): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-2' (000000009df71198): auto cleanup kobject_del kobject: 'rx-2' (000000009df71198): calling ktype release kobject: 'rx-2': free name kobject: 'rx-1' (000000002b4e5f7b): kobject_cleanup, parent 0000000050815c59 kobject: 'rx-1' (000000002b4e5f7b): auto cleanup 'remove' event kobject: 'rx-1' (000000002b4e5f7b): kobject_uevent_env kobject: 'rx-1' (000000002b4e5f7b): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-1' (000000002b4e5f7b): auto cleanup kobject_del kobject: 'rx-1' (000000002b4e5f7b): calling ktype release kobject: 'rx-1': free name kobject: 'rx-0' (00000000ad1fbb20): kobject_cleanup, parent 0000000050815c59 kobject: 'rx-0' (00000000ad1fbb20): auto cleanup 'remove' event kobject: 'rx-0' (00000000ad1fbb20): kobject_uevent_env kobject: 'rx-0' (00000000ad1fbb20): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (00000000ad1fbb20): auto cleanup kobject_del kobject: 'rx-0' (00000000ad1fbb20): calling ktype release kobject: 'rx-0': free name kobject: 'tx-15' (0000000079dd33bf): kobject_cleanup, parent 0000000050815c59 kobject: 'tx-15' (0000000079dd33bf): auto cleanup 'remove' event kobject: 'tx-15' (0000000079dd33bf): kobject_uevent_env kobject: 'tx-15' (0000000079dd33bf): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-15' (0000000079dd33bf): auto cleanup kobject_del kobject: 'tx-15' (0000000079dd33bf): calling ktype release kobject: 'tx-15': free name kobject: 'tx-14' (00000000774eecc9): kobject_cleanup, parent 0000000050815c59 kobject: 'tx-14' (00000000774eecc9): auto cleanup 'remove' event kobject: 'tx-14' (00000000774eecc9): kobject_uevent_env kobject: 'tx-14' (00000000774eecc9): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-14' (00000000774eecc9): auto cleanup kobject_del kobject: 'tx-14' (00000000774eecc9): calling ktype release kobject: 'tx-14': free name kobject: 'tx-13' (00000000ac078323): kobject_cleanup, parent 0000000050815c59 kobject: 'tx-13' (00000000ac078323): auto cleanup 'remove' event kobject: 'tx-13' (00000000ac078323): kobject_uevent_env kobject: 'tx-13' (00000000ac078323): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-13' (00000000ac078323): auto cleanup kobject_del kobject: 'tx-13' (00000000ac078323): calling ktype release kobject: 'tx-13': free name kobject: 'tx-12' (00000000c3147e1d): kobject_cleanup, parent 0000000050815c59 kobject: 'tx-12' (00000000c3147e1d): auto cleanup 'remove' event kobject: 'tx-12' (00000000c3147e1d): kobject_uevent_env kobject: 'tx-12' (00000000c3147e1d): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-12' (00000000c3147e1d): auto cleanup kobject_del kobject: 'tx-12' (00000000c3147e1d): calling ktype release kobject: 'tx-12': free name kobject: 'tx-11' (00000000e24898af): kobject_cleanup, parent 0000000050815c59 kobject: 'tx-11' (00000000e24898af): auto cleanup 'remove' event kobject: 'tx-11' (00000000e24898af): kobject_uevent_env kobject: 'tx-11' (00000000e24898af): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-11' (00000000e24898af): auto cleanup kobject_del kobject: 'tx-11' (00000000e24898af): calling ktype release kobject: 'tx-11': free name kobject: 'tx-10' (00000000ceb84a21): kobject_cleanup, parent 0000000050815c59 kobject: 'tx-10' (00000000ceb84a21): auto cleanup 'remove' event kobject: 'tx-10' (00000000ceb84a21): kobject_uevent_env kobject: 'tx-10' (00000000ceb84a21): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-10' (00000000ceb84a21): auto cleanup kobject_del kobject: 'tx-10' (00000000ceb84a21): calling ktype release kobject: 'tx-10': free name kobject: 'tx-9' (00000000eb7361fe): kobject_cleanup, parent 0000000050815c59 kobject: 'tx-9' (00000000eb7361fe): auto cleanup 'remove' event kobject: 'tx-9' (00000000eb7361fe): kobject_uevent_env kobject: 'tx-9' (00000000eb7361fe): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-9' (00000000eb7361fe): auto cleanup kobject_del kobject: 'tx-9' (00000000eb7361fe): calling ktype release kobject: 'tx-9': free name kobject: 'tx-8' (0000000084ab0fd5): kobject_cleanup, parent 0000000050815c59 kobject: 'tx-8' (0000000084ab0fd5): auto cleanup 'remove' event kobject: 'tx-8' (0000000084ab0fd5): kobject_uevent_env kobject: 'tx-8' (0000000084ab0fd5): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-8' (0000000084ab0fd5): auto cleanup kobject_del kobject: 'tx-8' (0000000084ab0fd5): calling ktype release kobject: 'tx-8': free name kobject: 'tx-7' (0000000032f6de46): kobject_cleanup, parent 0000000050815c59 kobject: 'tx-7' (0000000032f6de46): auto cleanup 'remove' event kobject: 'tx-7' (0000000032f6de46): kobject_uevent_env kobject: 'tx-7' (0000000032f6de46): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-7' (0000000032f6de46): auto cleanup kobject_del kobject: 'tx-7' (0000000032f6de46): calling ktype release kobject: 'tx-7': free name kobject: 'tx-6' (0000000012755294): kobject_cleanup, parent 0000000050815c59 kobject: 'tx-6' (0000000012755294): auto cleanup 'remove' event kobject: 'tx-6' (0000000012755294): kobject_uevent_env kobject: 'tx-6' (0000000012755294): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-6' (0000000012755294): auto cleanup kobject_del kobject: 'tx-6' (0000000012755294): calling ktype release kobject: 'tx-6': free name kobject: 'tx-5' (000000007a4ad818): kobject_cleanup, parent 0000000050815c59 kobject: 'tx-5' (000000007a4ad818): auto cleanup 'remove' event kobject: 'tx-5' (000000007a4ad818): kobject_uevent_env kobject: 'tx-5' (000000007a4ad818): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-5' (000000007a4ad818): auto cleanup kobject_del kobject: 'tx-5' (000000007a4ad818): calling ktype release kobject: 'tx-5': free name kobject: 'tx-4' (00000000dc2ac209): kobject_cleanup, parent 0000000050815c59 kobject: 'tx-4' (00000000dc2ac209): auto cleanup 'remove' event kobject: 'tx-4' (00000000dc2ac209): kobject_uevent_env kobject: 'tx-4' (00000000dc2ac209): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-4' (00000000dc2ac209): auto cleanup kobject_del kobject: 'tx-4' (00000000dc2ac209): calling ktype release kobject: 'tx-4': free name kobject: 'tx-3' (0000000002205b02): kobject_cleanup, parent 0000000050815c59 kobject: 'tx-3' (0000000002205b02): auto cleanup 'remove' event kobject: 'tx-3' (0000000002205b02): kobject_uevent_env kobject: 'tx-3' (0000000002205b02): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-3' (0000000002205b02): auto cleanup kobject_del kobject: 'tx-3' (0000000002205b02): calling ktype release kobject: 'tx-3': free name kobject: 'tx-2' (000000007eaf7c6e): kobject_cleanup, parent 0000000050815c59 kobject: 'tx-2' (000000007eaf7c6e): auto cleanup 'remove' event kobject: 'tx-2' (000000007eaf7c6e): kobject_uevent_env kobject: 'tx-2' (000000007eaf7c6e): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-2' (000000007eaf7c6e): auto cleanup kobject_del kobject: 'tx-2' (000000007eaf7c6e): calling ktype release kobject: 'tx-2': free name kobject: 'tx-1' (00000000064c3990): kobject_cleanup, parent 0000000050815c59 kobject: 'tx-1' (00000000064c3990): auto cleanup 'remove' event kobject: 'tx-1' (00000000064c3990): kobject_uevent_env kobject: 'tx-1' (00000000064c3990): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-1' (00000000064c3990): auto cleanup kobject_del kobject: 'tx-1' (00000000064c3990): calling ktype release kobject: 'tx-1': free name kobject: 'tx-0' (000000003f0b1b90): kobject_cleanup, parent 0000000050815c59 kobject: 'tx-0' (000000003f0b1b90): auto cleanup 'remove' event kobject: 'tx-0' (000000003f0b1b90): kobject_uevent_env kobject: 'tx-0' (000000003f0b1b90): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-0' (000000003f0b1b90): auto cleanup kobject_del kobject: 'tx-0' (000000003f0b1b90): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (0000000050815c59): kobject_cleanup, parent (null) kobject: 'queues' (0000000050815c59): calling ktype release kobject: 'queues' (0000000050815c59): kset_release kobject: 'queues': free name kobject: 'team0' (00000000b406a93d): kobject_uevent_env kobject: 'team0' (00000000b406a93d): kobject_uevent_env: uevent_suppress caused the event to drop! bond0 (unregistering): Released all slaves kobject: 'rx-15' (000000004bb085c8): kobject_cleanup, parent 0000000044f3bf3e kobject: 'rx-15' (000000004bb085c8): auto cleanup 'remove' event kobject: 'rx-15' (000000004bb085c8): kobject_uevent_env kobject: 'rx-15' (000000004bb085c8): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-15' (000000004bb085c8): auto cleanup kobject_del kobject: 'rx-15' (000000004bb085c8): calling ktype release kobject: 'rx-15': free name kobject: 'rx-14' (0000000026a5e3cc): kobject_cleanup, parent 0000000044f3bf3e kobject: 'rx-14' (0000000026a5e3cc): auto cleanup 'remove' event kobject: 'rx-14' (0000000026a5e3cc): kobject_uevent_env kobject: 'rx-14' (0000000026a5e3cc): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-14' (0000000026a5e3cc): auto cleanup kobject_del kobject: 'rx-14' (0000000026a5e3cc): calling ktype release kobject: 'rx-14': free name kobject: 'rx-13' (0000000027c0e7bf): kobject_cleanup, parent 0000000044f3bf3e kobject: 'rx-13' (0000000027c0e7bf): auto cleanup 'remove' event kobject: 'rx-13' (0000000027c0e7bf): kobject_uevent_env kobject: 'rx-13' (0000000027c0e7bf): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-13' (0000000027c0e7bf): auto cleanup kobject_del kobject: 'rx-13' (0000000027c0e7bf): calling ktype release kobject: 'rx-13': free name kobject: 'rx-12' (00000000adbdfa98): kobject_cleanup, parent 0000000044f3bf3e kobject: 'rx-12' (00000000adbdfa98): auto cleanup 'remove' event kobject: 'rx-12' (00000000adbdfa98): kobject_uevent_env kobject: 'rx-12' (00000000adbdfa98): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-12' (00000000adbdfa98): auto cleanup kobject_del kobject: 'rx-12' (00000000adbdfa98): calling ktype release kobject: 'rx-12': free name kobject: 'rx-11' (00000000ef788807): kobject_cleanup, parent 0000000044f3bf3e kobject: 'rx-11' (00000000ef788807): auto cleanup 'remove' event kobject: 'rx-11' (00000000ef788807): kobject_uevent_env kobject: 'rx-11' (00000000ef788807): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-11' (00000000ef788807): auto cleanup kobject_del kobject: 'rx-11' (00000000ef788807): calling ktype release kobject: 'rx-11': free name kobject: 'rx-10' (00000000d18b8da0): kobject_cleanup, parent 0000000044f3bf3e kobject: 'rx-10' (00000000d18b8da0): auto cleanup 'remove' event kobject: 'rx-10' (00000000d18b8da0): kobject_uevent_env kobject: 'rx-10' (00000000d18b8da0): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-10' (00000000d18b8da0): auto cleanup kobject_del kobject: 'rx-10' (00000000d18b8da0): calling ktype release kobject: 'rx-10': free name kobject: 'rx-9' (00000000dc892c43): kobject_cleanup, parent 0000000044f3bf3e kobject: 'rx-9' (00000000dc892c43): auto cleanup 'remove' event kobject: 'rx-9' (00000000dc892c43): kobject_uevent_env kobject: 'rx-9' (00000000dc892c43): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-9' (00000000dc892c43): auto cleanup kobject_del kobject: 'rx-9' (00000000dc892c43): calling ktype release kobject: 'rx-9': free name kobject: 'rx-8' (0000000045d4c044): kobject_cleanup, parent 0000000044f3bf3e kobject: 'rx-8' (0000000045d4c044): auto cleanup 'remove' event kobject: 'rx-8' (0000000045d4c044): kobject_uevent_env kobject: 'rx-8' (0000000045d4c044): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-8' (0000000045d4c044): auto cleanup kobject_del kobject: 'rx-8' (0000000045d4c044): calling ktype release kobject: 'rx-8': free name kobject: 'rx-7' (00000000c25c24f6): kobject_cleanup, parent 0000000044f3bf3e kobject: 'rx-7' (00000000c25c24f6): auto cleanup 'remove' event kobject: 'rx-7' (00000000c25c24f6): kobject_uevent_env kobject: 'rx-7' (00000000c25c24f6): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-7' (00000000c25c24f6): auto cleanup kobject_del kobject: 'rx-7' (00000000c25c24f6): calling ktype release kobject: 'rx-7': free name kobject: 'rx-6' (0000000081650165): kobject_cleanup, parent 0000000044f3bf3e kobject: 'rx-6' (0000000081650165): auto cleanup 'remove' event kobject: 'rx-6' (0000000081650165): kobject_uevent_env kobject: 'rx-6' (0000000081650165): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-6' (0000000081650165): auto cleanup kobject_del kobject: 'rx-6' (0000000081650165): calling ktype release kobject: 'rx-6': free name kobject: 'rx-5' (0000000034dcb760): kobject_cleanup, parent 0000000044f3bf3e kobject: 'rx-5' (0000000034dcb760): auto cleanup 'remove' event kobject: 'rx-5' (0000000034dcb760): kobject_uevent_env kobject: 'rx-5' (0000000034dcb760): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-5' (0000000034dcb760): auto cleanup kobject_del kobject: 'rx-5' (0000000034dcb760): calling ktype release kobject: 'rx-5': free name kobject: 'rx-4' (0000000097a4bc31): kobject_cleanup, parent 0000000044f3bf3e kobject: 'rx-4' (0000000097a4bc31): auto cleanup 'remove' event kobject: 'rx-4' (0000000097a4bc31): kobject_uevent_env kobject: 'rx-4' (0000000097a4bc31): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-4' (0000000097a4bc31): auto cleanup kobject_del kobject: 'rx-4' (0000000097a4bc31): calling ktype release kobject: 'rx-4': free name kobject: 'rx-3' (00000000ef7d83bf): kobject_cleanup, parent 0000000044f3bf3e kobject: 'rx-3' (00000000ef7d83bf): auto cleanup 'remove' event kobject: 'rx-3' (00000000ef7d83bf): kobject_uevent_env kobject: 'rx-3' (00000000ef7d83bf): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-3' (00000000ef7d83bf): auto cleanup kobject_del kobject: 'rx-3' (00000000ef7d83bf): calling ktype release kobject: 'rx-3': free name kobject: 'rx-2' (00000000cf5b24ae): kobject_cleanup, parent 0000000044f3bf3e kobject: 'rx-2' (00000000cf5b24ae): auto cleanup 'remove' event kobject: 'rx-2' (00000000cf5b24ae): kobject_uevent_env kobject: 'rx-2' (00000000cf5b24ae): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-2' (00000000cf5b24ae): auto cleanup kobject_del kobject: 'rx-2' (00000000cf5b24ae): calling ktype release kobject: 'rx-2': free name kobject: 'rx-1' (00000000d181e595): kobject_cleanup, parent 0000000044f3bf3e kobject: 'rx-1' (00000000d181e595): auto cleanup 'remove' event kobject: 'rx-1' (00000000d181e595): kobject_uevent_env kobject: 'rx-1' (00000000d181e595): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-1' (00000000d181e595): auto cleanup kobject_del kobject: 'rx-1' (00000000d181e595): calling ktype release kobject: 'rx-1': free name kobject: 'rx-0' (0000000098c85cd4): kobject_cleanup, parent 0000000044f3bf3e kobject: 'rx-0' (0000000098c85cd4): auto cleanup 'remove' event kobject: 'rx-0' (0000000098c85cd4): kobject_uevent_env kobject: 'rx-0' (0000000098c85cd4): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (0000000098c85cd4): auto cleanup kobject_del kobject: 'rx-0' (0000000098c85cd4): calling ktype release kobject: 'rx-0': free name kobject: 'tx-15' (0000000047275e00): kobject_cleanup, parent 0000000044f3bf3e kobject: 'tx-15' (0000000047275e00): auto cleanup 'remove' event kobject: 'tx-15' (0000000047275e00): kobject_uevent_env kobject: 'tx-15' (0000000047275e00): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-15' (0000000047275e00): auto cleanup kobject_del kobject: 'tx-15' (0000000047275e00): calling ktype release kobject: 'tx-15': free name kobject: 'tx-14' (0000000025ecd64a): kobject_cleanup, parent 0000000044f3bf3e kobject: 'tx-14' (0000000025ecd64a): auto cleanup 'remove' event kobject: 'tx-14' (0000000025ecd64a): kobject_uevent_env kobject: 'tx-14' (0000000025ecd64a): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-14' (0000000025ecd64a): auto cleanup kobject_del kobject: 'tx-14' (0000000025ecd64a): calling ktype release kobject: 'tx-14': free name kobject: 'tx-13' (00000000d83684b1): kobject_cleanup, parent 0000000044f3bf3e kobject: 'tx-13' (00000000d83684b1): auto cleanup 'remove' event kobject: 'tx-13' (00000000d83684b1): kobject_uevent_env kobject: 'tx-13' (00000000d83684b1): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-13' (00000000d83684b1): auto cleanup kobject_del kobject: 'tx-13' (00000000d83684b1): calling ktype release kobject: 'tx-13': free name kobject: 'tx-12' (00000000699aeb85): kobject_cleanup, parent 0000000044f3bf3e kobject: 'tx-12' (00000000699aeb85): auto cleanup 'remove' event kobject: 'tx-12' (00000000699aeb85): kobject_uevent_env kobject: 'tx-12' (00000000699aeb85): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-12' (00000000699aeb85): auto cleanup kobject_del kobject: 'tx-12' (00000000699aeb85): calling ktype release kobject: 'tx-12': free name kobject: 'tx-11' (000000002a6b04ac): kobject_cleanup, parent 0000000044f3bf3e kobject: 'tx-11' (000000002a6b04ac): auto cleanup 'remove' event kobject: 'tx-11' (000000002a6b04ac): kobject_uevent_env kobject: 'tx-11' (000000002a6b04ac): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-11' (000000002a6b04ac): auto cleanup kobject_del kobject: 'tx-11' (000000002a6b04ac): calling ktype release kobject: 'tx-11': free name kobject: 'tx-10' (0000000044c7f46e): kobject_cleanup, parent 0000000044f3bf3e kobject: 'tx-10' (0000000044c7f46e): auto cleanup 'remove' event kobject: 'tx-10' (0000000044c7f46e): kobject_uevent_env kobject: 'tx-10' (0000000044c7f46e): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-10' (0000000044c7f46e): auto cleanup kobject_del kobject: 'tx-10' (0000000044c7f46e): calling ktype release kobject: 'tx-10': free name kobject: 'tx-9' (00000000fe06a04f): kobject_cleanup, parent 0000000044f3bf3e kobject: 'tx-9' (00000000fe06a04f): auto cleanup 'remove' event kobject: 'tx-9' (00000000fe06a04f): kobject_uevent_env kobject: 'tx-9' (00000000fe06a04f): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-9' (00000000fe06a04f): auto cleanup kobject_del kobject: 'tx-9' (00000000fe06a04f): calling ktype release kobject: 'tx-9': free name kobject: 'tx-8' (00000000ea9cc0ef): kobject_cleanup, parent 0000000044f3bf3e kobject: 'tx-8' (00000000ea9cc0ef): auto cleanup 'remove' event kobject: 'tx-8' (00000000ea9cc0ef): kobject_uevent_env kobject: 'tx-8' (00000000ea9cc0ef): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-8' (00000000ea9cc0ef): auto cleanup kobject_del kobject: 'tx-8' (00000000ea9cc0ef): calling ktype release kobject: 'tx-8': free name kobject: 'tx-7' (000000008eba9d26): kobject_cleanup, parent 0000000044f3bf3e kobject: 'tx-7' (000000008eba9d26): auto cleanup 'remove' event kobject: 'tx-7' (000000008eba9d26): kobject_uevent_env kobject: 'tx-7' (000000008eba9d26): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-7' (000000008eba9d26): auto cleanup kobject_del kobject: 'tx-7' (000000008eba9d26): calling ktype release kobject: 'tx-7': free name kobject: 'tx-6' (00000000a5060619): kobject_cleanup, parent 0000000044f3bf3e kobject: 'tx-6' (00000000a5060619): auto cleanup 'remove' event kobject: 'tx-6' (00000000a5060619): kobject_uevent_env kobject: 'tx-6' (00000000a5060619): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-6' (00000000a5060619): auto cleanup kobject_del kobject: 'tx-6' (00000000a5060619): calling ktype release kobject: 'tx-6': free name kobject: 'tx-5' (00000000f15294a6): kobject_cleanup, parent 0000000044f3bf3e kobject: 'tx-5' (00000000f15294a6): auto cleanup 'remove' event kobject: 'tx-5' (00000000f15294a6): kobject_uevent_env kobject: 'tx-5' (00000000f15294a6): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-5' (00000000f15294a6): auto cleanup kobject_del kobject: 'tx-5' (00000000f15294a6): calling ktype release kobject: 'tx-5': free name kobject: 'tx-4' (0000000083a35427): kobject_cleanup, parent 0000000044f3bf3e kobject: 'tx-4' (0000000083a35427): auto cleanup 'remove' event kobject: 'tx-4' (0000000083a35427): kobject_uevent_env kobject: 'tx-4' (0000000083a35427): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-4' (0000000083a35427): auto cleanup kobject_del kobject: 'tx-4' (0000000083a35427): calling ktype release kobject: 'tx-4': free name kobject: 'tx-3' (000000008529c5cc): kobject_cleanup, parent 0000000044f3bf3e kobject: 'tx-3' (000000008529c5cc): auto cleanup 'remove' event kobject: 'tx-3' (000000008529c5cc): kobject_uevent_env kobject: 'tx-3' (000000008529c5cc): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-3' (000000008529c5cc): auto cleanup kobject_del kobject: 'tx-3' (000000008529c5cc): calling ktype release kobject: 'tx-3': free name kobject: 'tx-2' (0000000017c0b776): kobject_cleanup, parent 0000000044f3bf3e kobject: 'tx-2' (0000000017c0b776): auto cleanup 'remove' event kobject: 'tx-2' (0000000017c0b776): kobject_uevent_env kobject: 'tx-2' (0000000017c0b776): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-2' (0000000017c0b776): auto cleanup kobject_del kobject: 'tx-2' (0000000017c0b776): calling ktype release kobject: 'tx-2': free name kobject: 'tx-1' (000000006d1e36f8): kobject_cleanup, parent 0000000044f3bf3e kobject: 'tx-1' (000000006d1e36f8): auto cleanup 'remove' event kobject: 'tx-1' (000000006d1e36f8): kobject_uevent_env kobject: 'tx-1' (000000006d1e36f8): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-1' (000000006d1e36f8): auto cleanup kobject_del kobject: 'tx-1' (000000006d1e36f8): calling ktype release kobject: 'tx-1': free name kobject: 'tx-0' (0000000030e486c2): kobject_cleanup, parent 0000000044f3bf3e kobject: 'tx-0' (0000000030e486c2): auto cleanup 'remove' event kobject: 'tx-0' (0000000030e486c2): kobject_uevent_env kobject: 'tx-0' (0000000030e486c2): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-0' (0000000030e486c2): auto cleanup kobject_del kobject: 'tx-0' (0000000030e486c2): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (0000000044f3bf3e): kobject_cleanup, parent (null) kobject: 'queues' (0000000044f3bf3e): calling ktype release kobject: 'queues' (0000000044f3bf3e): kset_release kobject: 'queues': free name kobject: 'bond0' (00000000ed988091): kobject_uevent_env kobject: 'bond0' (00000000ed988091): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (000000007f24355c): kobject_cleanup, parent 0000000024435212 kobject: 'rx-0' (000000007f24355c): auto cleanup 'remove' event kobject: 'rx-0' (000000007f24355c): kobject_uevent_env kobject: 'rx-0' (000000007f24355c): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (000000007f24355c): auto cleanup kobject_del kobject: 'rx-0' (000000007f24355c): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (00000000f475596c): kobject_cleanup, parent 0000000024435212 kobject: 'tx-0' (00000000f475596c): auto cleanup 'remove' event kobject: 'tx-0' (00000000f475596c): kobject_uevent_env kobject: 'tx-0' (00000000f475596c): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-0' (00000000f475596c): auto cleanup kobject_del kobject: 'tx-0' (00000000f475596c): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (0000000024435212): kobject_cleanup, parent (null) kobject: 'queues' (0000000024435212): calling ktype release kobject: 'queues' (0000000024435212): kset_release kobject: 'queues': free name kobject: 'vcan0' (00000000905daa33): kobject_uevent_env kobject: 'vcan0' (00000000905daa33): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (00000000aa67551c): kobject_cleanup, parent 00000000887383c7 kobject: 'rx-0' (00000000aa67551c): auto cleanup 'remove' event kobject: 'rx-0' (00000000aa67551c): kobject_uevent_env kobject: 'rx-0' (00000000aa67551c): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (00000000aa67551c): auto cleanup kobject_del kobject: 'rx-0' (00000000aa67551c): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (0000000024a7ac66): kobject_cleanup, parent 00000000887383c7 kobject: 'tx-0' (0000000024a7ac66): auto cleanup 'remove' event kobject: 'tx-0' (0000000024a7ac66): kobject_uevent_env kobject: 'tx-0' (0000000024a7ac66): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-0' (0000000024a7ac66): auto cleanup kobject_del kobject: 'tx-0' (0000000024a7ac66): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (00000000887383c7): kobject_cleanup, parent (null) kobject: 'queues' (00000000887383c7): calling ktype release kobject: 'queues' (00000000887383c7): kset_release kobject: 'queues': free name kobject: 'bridge0' (00000000978d6f60): kobject_uevent_env kobject: 'bridge0' (00000000978d6f60): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (0000000036604b75): kobject_cleanup, parent 000000007ab044d8 kobject: 'rx-0' (0000000036604b75): auto cleanup 'remove' event kobject: 'rx-0' (0000000036604b75): kobject_uevent_env kobject: 'rx-0' (0000000036604b75): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (0000000036604b75): auto cleanup kobject_del kobject: 'rx-0' (0000000036604b75): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (00000000dbfc0eb6): kobject_cleanup, parent 000000007ab044d8 kobject: 'tx-0' (00000000dbfc0eb6): auto cleanup 'remove' event kobject: 'tx-0' (00000000dbfc0eb6): kobject_uevent_env kobject: 'tx-0' (00000000dbfc0eb6): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-0' (00000000dbfc0eb6): auto cleanup kobject_del kobject: 'tx-0' (00000000dbfc0eb6): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (000000007ab044d8): kobject_cleanup, parent (null) kobject: 'queues' (000000007ab044d8): calling ktype release kobject: 'queues' (000000007ab044d8): kset_release kobject: 'queues': free name kobject: 'lo' (0000000082a4c1a1): kobject_uevent_env kobject: 'lo' (0000000082a4c1a1): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'lo' (000000003dbce32e): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'lo' (000000003dbce32e): kobject_uevent_env kobject: 'lo' (000000003dbce32e): fill_kobj_path: path = '/devices/virtual/net/lo' kobject: 'queues' (0000000087095d42): kobject_add_internal: parent: 'lo', set: '<NULL>' kobject: 'queues' (0000000087095d42): kobject_uevent_env kobject: 'queues' (0000000087095d42): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (00000000aadbdd18): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (00000000aadbdd18): kobject_uevent_env kobject: 'rx-0' (00000000aadbdd18): fill_kobj_path: path = '/devices/virtual/net/lo/queues/rx-0' kobject: 'tx-0' (00000000ec3755bd): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (00000000ec3755bd): kobject_uevent_env kobject: 'tx-0' (00000000ec3755bd): fill_kobj_path: path = '/devices/virtual/net/lo/queues/tx-0' kobject: 'tunl0' (000000005a2b35a8): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'tunl0' (000000005a2b35a8): kobject_uevent_env kobject: 'tunl0' (000000005a2b35a8): fill_kobj_path: path = '/devices/virtual/net/tunl0' kobject: 'queues' (00000000916a0660): kobject_add_internal: parent: 'tunl0', set: '<NULL>' kobject: 'loop2' (00000000a2faca69): kobject_uevent_env kobject: 'queues' (00000000916a0660): kobject_uevent_env kobject: 'loop2' (00000000a2faca69): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'queues' (00000000916a0660): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (00000000f392c7a1): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (00000000f392c7a1): kobject_uevent_env kobject: 'rx-0' (00000000f392c7a1): fill_kobj_path: path = '/devices/virtual/net/tunl0/queues/rx-0' kobject: 'tx-0' (00000000b80f585f): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (00000000b80f585f): kobject_uevent_env kobject: 'tx-0' (00000000b80f585f): fill_kobj_path: path = '/devices/virtual/net/tunl0/queues/tx-0' kobject: 'team_slave_1' (000000001c55f79f): kobject_cleanup, parent (null) kobject: 'loop3' (00000000f2e9f2e2): kobject_uevent_env kobject: 'loop3' (00000000f2e9f2e2): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'gre0' (0000000046f6de73): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'team_slave_1' (000000001c55f79f): auto cleanup 'remove' event kobject: 'team_slave_1' (000000001c55f79f): kobject_uevent_env kobject: 'loop5' (00000000894e5376): kobject_uevent_env kobject: 'team_slave_1' (000000001c55f79f): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'loop5' (00000000894e5376): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'team_slave_1' (000000001c55f79f): calling ktype release kobject: 'team_slave_1': free name kobject: 'gre0' (0000000046f6de73): kobject_uevent_env kobject: 'gre0' (0000000046f6de73): fill_kobj_path: path = '/devices/virtual/net/gre0' kobject: 'queues' (0000000094651c78): kobject_add_internal: parent: 'gre0', set: '<NULL>' kobject: 'queues' (0000000094651c78): kobject_uevent_env kobject: 'queues' (0000000094651c78): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (00000000aaa5f00b): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (00000000aaa5f00b): kobject_uevent_env kobject: 'rx-0' (00000000aaa5f00b): fill_kobj_path: path = '/devices/virtual/net/gre0/queues/rx-0' kobject: 'tx-0' (000000001e906116): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (000000001e906116): kobject_uevent_env kobject: 'tx-0' (000000001e906116): fill_kobj_path: path = '/devices/virtual/net/gre0/queues/tx-0' kobject: 'gretap0' (00000000b1c22966): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'gretap0' (00000000b1c22966): kobject_uevent_env kobject: 'gretap0' (00000000b1c22966): fill_kobj_path: path = '/devices/virtual/net/gretap0' kobject: 'queues' (00000000c4e1f1cc): kobject_add_internal: parent: 'gretap0', set: '<NULL>' kobject: 'queues' (00000000c4e1f1cc): kobject_uevent_env kobject: 'queues' (00000000c4e1f1cc): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (00000000d7d1c263): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (00000000d7d1c263): kobject_uevent_env kobject: 'rx-0' (00000000d7d1c263): fill_kobj_path: path = '/devices/virtual/net/gretap0/queues/rx-0' kobject: 'tx-0' (000000005e35f016): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (000000005e35f016): kobject_uevent_env kobject: 'tx-0' (000000005e35f016): fill_kobj_path: path = '/devices/virtual/net/gretap0/queues/tx-0' kobject: 'veth1_to_team' (00000000bb1a6fa8): kobject_cleanup, parent (null) kobject: 'erspan0' (00000000e21ea9b9): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'veth1_to_team' (00000000bb1a6fa8): auto cleanup 'remove' event kobject: 'erspan0' (00000000e21ea9b9): kobject_uevent_env kobject: 'veth1_to_team' (00000000bb1a6fa8): kobject_uevent_env kobject: 'erspan0' (00000000e21ea9b9): fill_kobj_path: path = '/devices/virtual/net/erspan0' kobject: 'veth1_to_team' (00000000bb1a6fa8): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'queues' (00000000938ca38b): kobject_add_internal: parent: 'erspan0', set: '<NULL>' kobject: 'veth1_to_team' (00000000bb1a6fa8): calling ktype release kobject: 'queues' (00000000938ca38b): kobject_uevent_env kobject: 'veth1_to_team': free name kobject: 'queues' (00000000938ca38b): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (00000000235b8fb4): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (00000000235b8fb4): kobject_uevent_env kobject: 'rx-0' (00000000235b8fb4): fill_kobj_path: path = '/devices/virtual/net/erspan0/queues/rx-0' kobject: 'tx-0' (00000000c515958a): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (00000000c515958a): kobject_uevent_env kobject: 'tx-0' (00000000c515958a): fill_kobj_path: path = '/devices/virtual/net/erspan0/queues/tx-0' kobject: 'ip_vti0' (00000000baddc3ab): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'ip_vti0' (00000000baddc3ab): kobject_uevent_env kobject: 'ip_vti0' (00000000baddc3ab): fill_kobj_path: path = '/devices/virtual/net/ip_vti0' kobject: 'queues' (00000000d1b7734a): kobject_add_internal: parent: 'ip_vti0', set: '<NULL>' kobject: 'queues' (00000000d1b7734a): kobject_uevent_env kobject: 'queues' (00000000d1b7734a): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (0000000024e9bcbe): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (0000000024e9bcbe): kobject_uevent_env kobject: 'rx-0' (0000000024e9bcbe): fill_kobj_path: path = '/devices/virtual/net/ip_vti0/queues/rx-0' kobject: 'tx-0' (0000000057e53e9d): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (0000000057e53e9d): kobject_uevent_env kobject: 'tx-0' (0000000057e53e9d): fill_kobj_path: path = '/devices/virtual/net/ip_vti0/queues/tx-0' kobject: 'team_slave_0' (000000004579aa4f): kobject_cleanup, parent (null) kobject: 'ip6_vti0' (00000000d97953a2): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'team_slave_0' (000000004579aa4f): auto cleanup 'remove' event kobject: 'ip6_vti0' (00000000d97953a2): kobject_uevent_env kobject: 'team_slave_0' (000000004579aa4f): kobject --- This bug is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this bug report. See: https://goo.gl/tpsmEJ#bug-status-tracking for how to communicate with syzbot.
[Cc linux-unionfs]
On Wed, Sep 26, 2018 at 1:44 AM, syzbot
<syzbot+a55ccfc8a853d3cff213@syzkaller.appspotmail.com> wrote:
> Hello,
>
> syzbot found the following crash on:
>
> HEAD commit: 2dd68cc7fd8c Merge gitolite.kernel.org:/pub/scm/linux/kern..
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=111a60e6400000
> kernel config: https://syzkaller.appspot.com/x/.config?x=22a62640793a83c9
> dashboard link: https://syzkaller.appspot.com/bug?extid=a55ccfc8a853d3cff213
> compiler: gcc (GCC) 8.0.1 20180413 (experimental)
>
> Unfortunately, I don't have any reproducer for this crash yet.
>
> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: syzbot+a55ccfc8a853d3cff213@syzkaller.appspotmail.com
>
> ntfs: (device loop1): ntfs_fill_super(): Unable to determine device size.
> team0 (unregistering): Port device team_slave_1 removed
> kobject: 'team_slave_1' (000000001c55f79f): kobject_uevent_env
>
> ======================================================
> WARNING: possible circular locking dependency detected
> kobject: 'team_slave_1' (000000001c55f79f): kobject_uevent_env:
> uevent_suppress caused the event to drop!
> 4.19.0-rc5+ #253 Not tainted
> ------------------------------------------------------
> syz-executor1/545 is trying to acquire lock:
> 00000000b04209e4 (&ovl_i_mutex_dir_key[depth]){++++}, at: inode_lock_shared
> include/linux/fs.h:748 [inline]
> 00000000b04209e4 (&ovl_i_mutex_dir_key[depth]){++++}, at: do_last
> fs/namei.c:3323 [inline]
> 00000000b04209e4 (&ovl_i_mutex_dir_key[depth]){++++}, at:
> path_openat+0x250d/0x5160 fs/namei.c:3534
> kobject: 'rx-0' (00000000ca3546e9): kobject_cleanup, parent 000000004d034f96
>
> but task is already holding lock:
> 0000000044500cca (&sig->cred_guard_mutex){+.+.}, at:
> prepare_bprm_creds+0x53/0x120 fs/exec.c:1404
>
> 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+0x166/0x1700 kernel/locking/mutex.c:1072
> kobject: 'rx-0' (00000000ca3546e9): auto cleanup 'remove' event
> mutex_lock_killable_nested+0x16/0x20 kernel/locking/mutex.c:1102
> lock_trace+0x4c/0xe0 fs/proc/base.c:384
> proc_pid_stack+0x196/0x3b0 fs/proc/base.c:420
> proc_single_show+0x101/0x190 fs/proc/base.c:723
> seq_read+0x4af/0x1150 fs/seq_file.c:229
> do_loop_readv_writev fs/read_write.c:700 [inline]
> do_iter_read+0x4a3/0x650 fs/read_write.c:924
> kobject: 'rx-0' (00000000ca3546e9): kobject_uevent_env
> vfs_readv+0x175/0x1c0 fs/read_write.c:986
> do_preadv+0x1cc/0x280 fs/read_write.c:1070
> __do_sys_preadv fs/read_write.c:1120 [inline]
> __se_sys_preadv fs/read_write.c:1115 [inline]
> __x64_sys_preadv+0x9a/0xf0 fs/read_write.c:1115
> do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
> kobject: 'rx-0' (00000000ca3546e9): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> entry_SYSCALL_64_after_hwframe+0x49/0xbe
>
> -> #2 (&p->lock){+.+.}:
> __mutex_lock_common kernel/locking/mutex.c:925 [inline]
> __mutex_lock+0x166/0x1700 kernel/locking/mutex.c:1072
> mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087
> seq_read+0x71/0x1150 fs/seq_file.c:161
> do_loop_readv_writev fs/read_write.c:700 [inline]
> do_iter_read+0x4a3/0x650 fs/read_write.c:924
> vfs_readv+0x175/0x1c0 fs/read_write.c:986
> kobject: 'rx-0' (00000000ca3546e9): auto cleanup kobject_del
> kernel_readv fs/splice.c:362 [inline]
> default_file_splice_read+0x53c/0xb20 fs/splice.c:417
> do_splice_to+0x12e/0x190 fs/splice.c:881
> splice_direct_to_actor+0x270/0x8f0 fs/splice.c:953
> do_splice_direct+0x2d4/0x420 fs/splice.c:1062
> do_sendfile+0x62a/0xe20 fs/read_write.c:1440
> __do_sys_sendfile64 fs/read_write.c:1495 [inline]
> __se_sys_sendfile64 fs/read_write.c:1487 [inline]
> __x64_sys_sendfile64+0x15d/0x250 fs/read_write.c:1487
> do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
> kobject: 'rx-0' (00000000ca3546e9): calling ktype release
> entry_SYSCALL_64_after_hwframe+0x49/0xbe
>
> -> #1 (sb_writers#5){.+.+}:
> 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+0x214/0x370 fs/super.c:1387
> sb_start_write include/linux/fs.h:1566 [inline]
> mnt_want_write+0x3f/0xc0 fs/namespace.c:360
> ovl_want_write+0x76/0xa0 fs/overlayfs/util.c:24
> kobject: 'rx-0': free name
> ovl_create_object+0x142/0x3a0 fs/overlayfs/dir.c:596
> ovl_create+0x2b/0x30 fs/overlayfs/dir.c:627
> lookup_open+0x1319/0x1b90 fs/namei.c:3234
> do_last fs/namei.c:3324 [inline]
> path_openat+0x15e7/0x5160 fs/namei.c:3534
> do_filp_open+0x255/0x380 fs/namei.c:3564
> do_sys_open+0x568/0x700 fs/open.c:1063
> ksys_open include/linux/syscalls.h:1276 [inline]
> __do_sys_creat fs/open.c:1121 [inline]
> __se_sys_creat fs/open.c:1119 [inline]
> __x64_sys_creat+0x61/0x80 fs/open.c:1119
> kobject: 'tx-0' (000000006100c4d9): kobject_cleanup, parent 000000004d034f96
> do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
> entry_SYSCALL_64_after_hwframe+0x49/0xbe
>
> -> #0 (&ovl_i_mutex_dir_key[depth]){++++}:
> lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3900
> down_read+0xb0/0x1d0 kernel/locking/rwsem.c:24
> inode_lock_shared include/linux/fs.h:748 [inline]
> do_last fs/namei.c:3323 [inline]
> path_openat+0x250d/0x5160 fs/namei.c:3534
> kobject: 'tx-0' (000000006100c4d9): auto cleanup 'remove' event
> do_filp_open+0x255/0x380 fs/namei.c:3564
> do_open_execat+0x221/0x8e0 fs/exec.c:853
> __do_execve_file.isra.33+0x173f/0x2540 fs/exec.c:1755
> do_execveat_common fs/exec.c:1866 [inline]
> do_execve fs/exec.c:1883 [inline]
> __do_sys_execve fs/exec.c:1964 [inline]
> __se_sys_execve fs/exec.c:1959 [inline]
> __x64_sys_execve+0x8f/0xc0 fs/exec.c:1959
> do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
> kobject: 'tx-0' (000000006100c4d9): kobject_uevent_env
> 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
> kobject: 'tx-0' (000000006100c4d9): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> ---- ----
> lock(&sig->cred_guard_mutex);
> lock(&p->lock);
> lock(&sig->cred_guard_mutex);
> lock(&ovl_i_mutex_dir_key[depth]);
>
> *** DEADLOCK ***
>
> 1 lock held by syz-executor1/545:
> kobject: 'tx-0' (000000006100c4d9): auto cleanup kobject_del
> #0: 0000000044500cca (&sig->cred_guard_mutex){+.+.}, at:
> prepare_bprm_creds+0x53/0x120 fs/exec.c:1404
>
> stack backtrace:
> CPU: 1 PID: 545 Comm: syz-executor1 Not tainted 4.19.0-rc5+ #253
> 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+0x1c4/0x2b4 lib/dump_stack.c:113
> kobject: 'tx-0' (000000006100c4d9): calling ktype release
> print_circular_bug.isra.33.cold.54+0x1bd/0x27d
> 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+0x33e4/0x4ec0 kernel/locking/lockdep.c:3411
> kobject: 'tx-0': free name
> kobject: 'queues' (000000004d034f96): kobject_cleanup, parent
> (null)
> kobject: 'queues' (000000004d034f96): calling ktype release
> kobject: 'queues' (000000004d034f96): kset_release
> lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3900
> kobject: 'queues': free name
> down_read+0xb0/0x1d0 kernel/locking/rwsem.c:24
> kobject: 'veth1_to_team' (00000000bb1a6fa8): kobject_uevent_env
> inode_lock_shared include/linux/fs.h:748 [inline]
> do_last fs/namei.c:3323 [inline]
> path_openat+0x250d/0x5160 fs/namei.c:3534
> kobject: 'veth1_to_team' (00000000bb1a6fa8): kobject_uevent_env:
> uevent_suppress caused the event to drop!
> do_filp_open+0x255/0x380 fs/namei.c:3564
> do_open_execat+0x221/0x8e0 fs/exec.c:853
> __do_execve_file.isra.33+0x173f/0x2540 fs/exec.c:1755
> do_execveat_common fs/exec.c:1866 [inline]
> do_execve fs/exec.c:1883 [inline]
> __do_sys_execve fs/exec.c:1964 [inline]
> __se_sys_execve fs/exec.c:1959 [inline]
> __x64_sys_execve+0x8f/0xc0 fs/exec.c:1959
> do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
> entry_SYSCALL_64_after_hwframe+0x49/0xbe
> RIP: 0033:0x457579
> Code: 1d b4 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 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
> RSP: 002b:00007f2a0f031c78 EFLAGS: 00000246 ORIG_RAX: 000000000000003b
> RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457579
> RDX: 0000000020000480 RSI: 0000000020000340 RDI: 0000000020000280
> RBP: 000000000072c0e0 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2a0f0326d4
> R13: 00000000004bdbe8 R14: 00000000004cc738 R15: 00000000ffffffff
> team0 (unregistering): Port device team_slave_0 removed
> kobject: 'rx-0' (0000000062803feb): kobject_cleanup, parent 000000005ccb07c7
> kobject: 'rx-0' (0000000062803feb): auto cleanup 'remove' event
> kobject: 'rx-0' (0000000062803feb): kobject_uevent_env
> kobject: 'rx-0' (0000000062803feb): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (0000000062803feb): auto cleanup kobject_del
> kobject: 'rx-0' (0000000062803feb): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (00000000eeee9c6c): kobject_cleanup, parent 000000005ccb07c7
> kobject: 'tx-0' (00000000eeee9c6c): auto cleanup 'remove' event
> kobject: 'tx-0' (00000000eeee9c6c): kobject_uevent_env
> kobject: 'tx-0' (00000000eeee9c6c): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (00000000eeee9c6c): auto cleanup kobject_del
> kobject: 'tx-0' (00000000eeee9c6c): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (000000005ccb07c7): kobject_cleanup, parent
> (null)
> kobject: 'queues' (000000005ccb07c7): calling ktype release
> kobject: 'queues' (000000005ccb07c7): kset_release
> kobject: 'queues': free name
> kobject: 'team_slave_0' (000000004579aa4f): kobject_uevent_env
> kobject: 'team_slave_0' (000000004579aa4f): kobject_uevent_env:
> uevent_suppress caused the event to drop!
> kobject: 'rx-0' (00000000dbec8020): kobject_cleanup, parent 00000000d2bee902
> kobject: 'rx-0' (00000000dbec8020): auto cleanup 'remove' event
> kobject: 'rx-0' (00000000dbec8020): kobject_uevent_env
> kobject: 'rx-0' (00000000dbec8020): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (00000000dbec8020): auto cleanup kobject_del
> kobject: 'rx-0' (00000000dbec8020): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (00000000f973539a): kobject_cleanup, parent 00000000d2bee902
> kobject: 'tx-0' (00000000f973539a): auto cleanup 'remove' event
> kobject: 'tx-0' (00000000f973539a): kobject_uevent_env
> kobject: 'tx-0' (00000000f973539a): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (00000000f973539a): auto cleanup kobject_del
> kobject: 'tx-0' (00000000f973539a): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (00000000d2bee902): kobject_cleanup, parent
> (null)
> kobject: 'queues' (00000000d2bee902): calling ktype release
> kobject: 'queues' (00000000d2bee902): kset_release
> kobject: 'queues': free name
> kobject: 'veth0_to_team' (00000000b181324c): kobject_uevent_env
> kobject: 'veth0_to_team' (00000000b181324c): kobject_uevent_env:
> uevent_suppress caused the event to drop!
> kobject: 'bonding_slave' (000000004540690a): kobject_cleanup, parent
> 000000005d5306ea
> kobject: 'bonding_slave' (000000004540690a): does not have a release()
> function, it is broken and must be fixed.
> kobject: 'bonding_slave' (000000004540690a): auto cleanup kobject_del
> kobject: 'bonding_slave': free name
> bond0 (unregistering): Releasing backup interface bond_slave_1
> kobject: 'rx-0' (0000000080fa1ce8): kobject_cleanup, parent 00000000ecea369f
> kobject: 'rx-0' (0000000080fa1ce8): auto cleanup 'remove' event
> kobject: 'rx-0' (0000000080fa1ce8): kobject_uevent_env
> kobject: 'rx-0' (0000000080fa1ce8): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (0000000080fa1ce8): auto cleanup kobject_del
> kobject: 'rx-0' (0000000080fa1ce8): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (0000000079ab5609): kobject_cleanup, parent 00000000ecea369f
> kobject: 'tx-0' (0000000079ab5609): auto cleanup 'remove' event
> kobject: 'tx-0' (0000000079ab5609): kobject_uevent_env
> kobject: 'tx-0' (0000000079ab5609): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (0000000079ab5609): auto cleanup kobject_del
> kobject: 'tx-0' (0000000079ab5609): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (00000000ecea369f): kobject_cleanup, parent
> (null)
> kobject: 'queues' (00000000ecea369f): calling ktype release
> kobject: 'queues' (00000000ecea369f): kset_release
> kobject: 'queues': free name
> kobject: 'bond_slave_1' (000000005d5306ea): kobject_uevent_env
> kobject: 'bond_slave_1' (000000005d5306ea): kobject_uevent_env:
> uevent_suppress caused the event to drop!
> kobject: 'rx-0' (000000002189b377): kobject_cleanup, parent 00000000486dfbf9
> kobject: 'rx-0' (000000002189b377): auto cleanup 'remove' event
> kobject: 'rx-0' (000000002189b377): kobject_uevent_env
> kobject: 'rx-0' (000000002189b377): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (000000002189b377): auto cleanup kobject_del
> kobject: 'rx-0' (000000002189b377): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (00000000f1293e07): kobject_cleanup, parent 00000000486dfbf9
> kobject: 'tx-0' (00000000f1293e07): auto cleanup 'remove' event
> kobject: 'tx-0' (00000000f1293e07): kobject_uevent_env
> kobject: 'tx-0' (00000000f1293e07): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (00000000f1293e07): auto cleanup kobject_del
> kobject: 'tx-0' (00000000f1293e07): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (00000000486dfbf9): kobject_cleanup, parent
> (null)
> kobject: 'queues' (00000000486dfbf9): calling ktype release
> kobject: 'queues' (00000000486dfbf9): kset_release
> kobject: 'queues': free name
> kobject: 'veth1_to_bond' (00000000d95bcf97): kobject_uevent_env
> kobject: 'veth1_to_bond' (00000000d95bcf97): kobject_uevent_env:
> uevent_suppress caused the event to drop!
> kobject: 'loop1' (000000004467f992): kobject_uevent_env
> kobject: 'loop1' (000000004467f992): fill_kobj_path: path =
> '/devices/virtual/block/loop1'
> kobject: 'bonding_slave' (0000000087891593): kobject_cleanup, parent
> 00000000f6b09244
> kobject: 'bonding_slave' (0000000087891593): does not have a release()
> function, it is broken and must be fixed.
> kobject: 'bonding_slave' (0000000087891593): auto cleanup kobject_del
> kobject: 'bonding_slave': free name
> bond0 (unregistering): Releasing backup interface bond_slave_0
> kobject: 'rx-0' (00000000027562d9): kobject_cleanup, parent 000000005ba0447b
> kobject: 'rx-0' (00000000027562d9): auto cleanup 'remove' event
> kobject: 'rx-0' (00000000027562d9): kobject_uevent_env
> kobject: 'rx-0' (00000000027562d9): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (00000000027562d9): auto cleanup kobject_del
> kobject: 'rx-0' (00000000027562d9): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (0000000022647e45): kobject_cleanup, parent 000000005ba0447b
> kobject: 'tx-0' (0000000022647e45): auto cleanup 'remove' event
> kobject: 'tx-0' (0000000022647e45): kobject_uevent_env
> kobject: 'tx-0' (0000000022647e45): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (0000000022647e45): auto cleanup kobject_del
> kobject: 'tx-0' (0000000022647e45): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (000000005ba0447b): kobject_cleanup, parent
> (null)
> kobject: 'queues' (000000005ba0447b): calling ktype release
> kobject: 'queues' (000000005ba0447b): kset_release
> kobject: 'queues': free name
> kobject: 'bond_slave_0' (00000000f6b09244): kobject_uevent_env
> kobject: 'bond_slave_0' (00000000f6b09244): kobject_uevent_env:
> uevent_suppress caused the event to drop!
> kobject: 'loop4' (0000000059e95085): kobject_uevent_env
> kobject: 'loop4' (0000000059e95085): fill_kobj_path: path =
> '/devices/virtual/block/loop4'
> kobject: 'rx-0' (000000005a342d88): kobject_cleanup, parent 00000000bcb329f6
> kobject: 'rx-0' (000000005a342d88): auto cleanup 'remove' event
> kobject: 'rx-0' (000000005a342d88): kobject_uevent_env
> kobject: 'rx-0' (000000005a342d88): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (000000005a342d88): auto cleanup kobject_del
> kobject: 'rx-0' (000000005a342d88): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (000000003125a82f): kobject_cleanup, parent 00000000bcb329f6
> kobject: 'tx-0' (000000003125a82f): auto cleanup 'remove' event
> kobject: 'tx-0' (000000003125a82f): kobject_uevent_env
> kobject: 'tx-0' (000000003125a82f): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (000000003125a82f): auto cleanup kobject_del
> kobject: 'tx-0' (000000003125a82f): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (00000000bcb329f6): kobject_cleanup, parent
> (null)
> kobject: 'queues' (00000000bcb329f6): calling ktype release
> kobject: 'queues' (00000000bcb329f6): kset_release
> kobject: 'queues': free name
> kobject: 'veth0_to_bond' (00000000b0d0fa05): kobject_uevent_env
> kobject: 'veth0_to_bond' (00000000b0d0fa05): kobject_uevent_env:
> uevent_suppress caused the event to drop!
> kobject: 'rx-0' (0000000081a8822f): kobject_cleanup, parent 0000000093d30697
> kobject: 'rx-0' (0000000081a8822f): auto cleanup 'remove' event
> kobject: 'rx-0' (0000000081a8822f): kobject_uevent_env
> kobject: 'rx-0' (0000000081a8822f): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (0000000081a8822f): auto cleanup kobject_del
> kobject: 'rx-0' (0000000081a8822f): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (000000002448554d): kobject_cleanup, parent 0000000093d30697
> kobject: 'tx-0' (000000002448554d): auto cleanup 'remove' event
> kobject: 'tx-0' (000000002448554d): kobject_uevent_env
> kobject: 'tx-0' (000000002448554d): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (000000002448554d): auto cleanup kobject_del
> kobject: 'tx-0' (000000002448554d): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (0000000093d30697): kobject_cleanup, parent
> (null)
> kobject: 'queues' (0000000093d30697): calling ktype release
> kobject: 'queues' (0000000093d30697): kset_release
> kobject: 'queues': free name
> kobject: 'bridge_slave_1' (00000000f377cd77): kobject_uevent_env
> kobject: 'bridge_slave_1' (00000000f377cd77): kobject_uevent_env:
> uevent_suppress caused the event to drop!
> kobject: 'rx-0' (00000000b92f3113): kobject_cleanup, parent 00000000bf1a108e
> kobject: 'rx-0' (00000000b92f3113): auto cleanup 'remove' event
> kobject: 'rx-0' (00000000b92f3113): kobject_uevent_env
> kobject: 'rx-0' (00000000b92f3113): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (00000000b92f3113): auto cleanup kobject_del
> kobject: 'loop1' (000000004467f992): kobject_uevent_env
> kobject: 'rx-0' (00000000b92f3113): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (00000000b940a2a1): kobject_cleanup, parent 00000000bf1a108e
> kobject: 'loop1' (000000004467f992): fill_kobj_path: path =
> '/devices/virtual/block/loop1'
> kobject: 'tx-0' (00000000b940a2a1): auto cleanup 'remove' event
> kobject: 'tx-0' (00000000b940a2a1): kobject_uevent_env
> kobject: 'tx-0' (00000000b940a2a1): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (00000000b940a2a1): auto cleanup kobject_del
> kobject: 'tx-0' (00000000b940a2a1): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (00000000bf1a108e): kobject_cleanup, parent
> (null)
> kobject: 'queues' (00000000bf1a108e): calling ktype release
> kobject: 'queues' (00000000bf1a108e): kset_release
> kobject: 'queues': free name
> kobject: 'veth1_to_bridge' (00000000b1d101dd): kobject_uevent_env
> kobject: 'veth1_to_bridge' (00000000b1d101dd): kobject_uevent_env:
> uevent_suppress caused the event to drop!
> kobject: 'rx-0' (000000003f30efcb): kobject_cleanup, parent 00000000f67e13e0
> kobject: 'loop4' (0000000059e95085): kobject_uevent_env
> kobject: 'rx-0' (000000003f30efcb): auto cleanup 'remove' event
> kobject: 'loop4' (0000000059e95085): fill_kobj_path: path =
> '/devices/virtual/block/loop4'
> kobject: 'rx-0' (000000003f30efcb): kobject_uevent_env
> kobject: 'rx-0' (000000003f30efcb): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (000000003f30efcb): auto cleanup kobject_del
> kobject: 'rx-0' (000000003f30efcb): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (000000001d3b85ea): kobject_cleanup, parent 00000000f67e13e0
> kobject: 'tx-0' (000000001d3b85ea): auto cleanup 'remove' event
> kobject: 'tx-0' (000000001d3b85ea): kobject_uevent_env
> kobject: 'tx-0' (000000001d3b85ea): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (000000001d3b85ea): auto cleanup kobject_del
> kobject: 'tx-0' (000000001d3b85ea): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (00000000f67e13e0): kobject_cleanup, parent
> (null)
> kobject: 'queues' (00000000f67e13e0): calling ktype release
> kobject: 'queues' (00000000f67e13e0): kset_release
> kobject: 'queues': free name
> kobject: 'bridge_slave_0' (000000004b7322e9): kobject_uevent_env
> kobject: 'bridge_slave_0' (000000004b7322e9): kobject_uevent_env:
> uevent_suppress caused the event to drop!
> kobject: 'rx-0' (00000000eed99d2a): kobject_cleanup, parent 00000000fe296f3a
> kobject: 'rx-0' (00000000eed99d2a): auto cleanup 'remove' event
> kobject: 'rx-0' (00000000eed99d2a): kobject_uevent_env
> kobject: 'rx-0' (00000000eed99d2a): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (00000000eed99d2a): auto cleanup kobject_del
> kobject: 'rx-0' (00000000eed99d2a): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (000000007504c6a8): kobject_cleanup, parent 00000000fe296f3a
> kobject: 'tx-0' (000000007504c6a8): auto cleanup 'remove' event
> kobject: 'tx-0' (000000007504c6a8): kobject_uevent_env
> kobject: 'tx-0' (000000007504c6a8): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (000000007504c6a8): auto cleanup kobject_del
> kobject: 'tx-0' (000000007504c6a8): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (00000000fe296f3a): kobject_cleanup, parent
> (null)
> kobject: 'queues' (00000000fe296f3a): calling ktype release
> kobject: 'queues' (00000000fe296f3a): kset_release
> kobject: 'queues': free name
> kobject: 'veth0_to_bridge' (000000008192e49b): kobject_uevent_env
> kobject: 'veth0_to_bridge' (000000008192e49b): kobject_uevent_env:
> uevent_suppress caused the event to drop!
> kobject: 'rx-0' (00000000edd8dc5f): kobject_cleanup, parent 00000000361c7135
> kobject: 'rx-0' (00000000edd8dc5f): auto cleanup 'remove' event
> kobject: 'rx-0' (00000000edd8dc5f): kobject_uevent_env
> kobject: 'rx-0' (00000000edd8dc5f): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (00000000edd8dc5f): auto cleanup kobject_del
> kobject: 'rx-0' (00000000edd8dc5f): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (00000000a3ef359e): kobject_cleanup, parent 00000000361c7135
> kobject: 'tx-0' (00000000a3ef359e): auto cleanup 'remove' event
> kobject: 'tx-0' (00000000a3ef359e): kobject_uevent_env
> kobject: 'tx-0' (00000000a3ef359e): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (00000000a3ef359e): auto cleanup kobject_del
> kobject: 'tx-0' (00000000a3ef359e): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (00000000361c7135): kobject_cleanup, parent
> (null)
> kobject: 'queues' (00000000361c7135): calling ktype release
> kobject: 'queues' (00000000361c7135): kset_release
> kobject: 'queues': free name
> kobject: 'veth1' (0000000082eb9bf9): kobject_uevent_env
> kobject: 'veth1' (0000000082eb9bf9): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (00000000eafa234f): kobject_cleanup, parent 00000000b0828830
> kobject: 'rx-0' (00000000eafa234f): auto cleanup 'remove' event
> kobject: 'rx-0' (00000000eafa234f): kobject_uevent_env
> kobject: 'rx-0' (00000000eafa234f): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (00000000eafa234f): auto cleanup kobject_del
> kobject: 'rx-0' (00000000eafa234f): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (000000000a051558): kobject_cleanup, parent 00000000b0828830
> kobject: 'tx-0' (000000000a051558): auto cleanup 'remove' event
> kobject: 'tx-0' (000000000a051558): kobject_uevent_env
> kobject: 'tx-0' (000000000a051558): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (000000000a051558): auto cleanup kobject_del
> kobject: 'tx-0' (000000000a051558): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (00000000b0828830): kobject_cleanup, parent
> (null)
> kobject: 'queues' (00000000b0828830): calling ktype release
> kobject: 'queues' (00000000b0828830): kset_release
> kobject: 'queues': free name
> kobject: 'veth0' (0000000096d924ce): kobject_uevent_env
> kobject: 'veth0' (0000000096d924ce): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-15' (000000009243e024): kobject_cleanup, parent
> 0000000050815c59
> kobject: 'rx-15' (000000009243e024): auto cleanup 'remove' event
> kobject: 'rx-15' (000000009243e024): kobject_uevent_env
> kobject: 'rx-15' (000000009243e024): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-15' (000000009243e024): auto cleanup kobject_del
> kobject: 'rx-15' (000000009243e024): calling ktype release
> kobject: 'rx-15': free name
> kobject: 'rx-14' (00000000e63d5b80): kobject_cleanup, parent
> 0000000050815c59
> kobject: 'rx-14' (00000000e63d5b80): auto cleanup 'remove' event
> kobject: 'rx-14' (00000000e63d5b80): kobject_uevent_env
> kobject: 'rx-14' (00000000e63d5b80): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-14' (00000000e63d5b80): auto cleanup kobject_del
> kobject: 'rx-14' (00000000e63d5b80): calling ktype release
> kobject: 'rx-14': free name
> kobject: 'rx-13' (0000000033b47368): kobject_cleanup, parent
> 0000000050815c59
> kobject: 'rx-13' (0000000033b47368): auto cleanup 'remove' event
> kobject: 'rx-13' (0000000033b47368): kobject_uevent_env
> kobject: 'rx-13' (0000000033b47368): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-13' (0000000033b47368): auto cleanup kobject_del
> kobject: 'rx-13' (0000000033b47368): calling ktype release
> kobject: 'rx-13': free name
> kobject: 'rx-12' (000000004f0b4934): kobject_cleanup, parent
> 0000000050815c59
> kobject: 'rx-12' (000000004f0b4934): auto cleanup 'remove' event
> kobject: 'rx-12' (000000004f0b4934): kobject_uevent_env
> kobject: 'rx-12' (000000004f0b4934): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-12' (000000004f0b4934): auto cleanup kobject_del
> kobject: 'rx-12' (000000004f0b4934): calling ktype release
> kobject: 'rx-12': free name
> kobject: 'rx-11' (000000007cf66a94): kobject_cleanup, parent
> 0000000050815c59
> kobject: 'rx-11' (000000007cf66a94): auto cleanup 'remove' event
> kobject: 'rx-11' (000000007cf66a94): kobject_uevent_env
> kobject: 'rx-11' (000000007cf66a94): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-11' (000000007cf66a94): auto cleanup kobject_del
> kobject: 'rx-11' (000000007cf66a94): calling ktype release
> kobject: 'rx-11': free name
> kobject: 'rx-10' (00000000e608ff08): kobject_cleanup, parent
> 0000000050815c59
> kobject: 'rx-10' (00000000e608ff08): auto cleanup 'remove' event
> kobject: 'rx-10' (00000000e608ff08): kobject_uevent_env
> kobject: 'rx-10' (00000000e608ff08): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-10' (00000000e608ff08): auto cleanup kobject_del
> kobject: 'rx-10' (00000000e608ff08): calling ktype release
> kobject: 'rx-10': free name
> kobject: 'rx-9' (00000000e07f4b85): kobject_cleanup, parent 0000000050815c59
> kobject: 'rx-9' (00000000e07f4b85): auto cleanup 'remove' event
> kobject: 'rx-9' (00000000e07f4b85): kobject_uevent_env
> kobject: 'rx-9' (00000000e07f4b85): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-9' (00000000e07f4b85): auto cleanup kobject_del
> kobject: 'rx-9' (00000000e07f4b85): calling ktype release
> kobject: 'rx-9': free name
> kobject: 'rx-8' (00000000baee482a): kobject_cleanup, parent 0000000050815c59
> kobject: 'rx-8' (00000000baee482a): auto cleanup 'remove' event
> kobject: 'rx-8' (00000000baee482a): kobject_uevent_env
> kobject: 'rx-8' (00000000baee482a): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-8' (00000000baee482a): auto cleanup kobject_del
> kobject: 'rx-8' (00000000baee482a): calling ktype release
> kobject: 'rx-8': free name
> kobject: 'rx-7' (000000009df09645): kobject_cleanup, parent 0000000050815c59
> kobject: 'rx-7' (000000009df09645): auto cleanup 'remove' event
> kobject: 'rx-7' (000000009df09645): kobject_uevent_env
> kobject: 'rx-7' (000000009df09645): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-7' (000000009df09645): auto cleanup kobject_del
> kobject: 'rx-7' (000000009df09645): calling ktype release
> kobject: 'rx-7': free name
> kobject: 'rx-6' (000000007f6827df): kobject_cleanup, parent 0000000050815c59
> kobject: 'rx-6' (000000007f6827df): auto cleanup 'remove' event
> kobject: 'rx-6' (000000007f6827df): kobject_uevent_env
> kobject: 'rx-6' (000000007f6827df): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-6' (000000007f6827df): auto cleanup kobject_del
> kobject: 'rx-6' (000000007f6827df): calling ktype release
> kobject: 'rx-6': free name
> kobject: 'rx-5' (0000000095ecebb8): kobject_cleanup, parent 0000000050815c59
> kobject: 'rx-5' (0000000095ecebb8): auto cleanup 'remove' event
> kobject: 'rx-5' (0000000095ecebb8): kobject_uevent_env
> kobject: 'rx-5' (0000000095ecebb8): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-5' (0000000095ecebb8): auto cleanup kobject_del
> kobject: 'rx-5' (0000000095ecebb8): calling ktype release
> kobject: 'rx-5': free name
> kobject: 'rx-4' (000000004832126c): kobject_cleanup, parent 0000000050815c59
> kobject: 'rx-4' (000000004832126c): auto cleanup 'remove' event
> kobject: 'rx-4' (000000004832126c): kobject_uevent_env
> kobject: 'rx-4' (000000004832126c): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-4' (000000004832126c): auto cleanup kobject_del
> kobject: 'rx-4' (000000004832126c): calling ktype release
> kobject: 'rx-4': free name
> kobject: 'rx-3' (00000000b31dcd9f): kobject_cleanup, parent 0000000050815c59
> kobject: 'rx-3' (00000000b31dcd9f): auto cleanup 'remove' event
> kobject: 'rx-3' (00000000b31dcd9f): kobject_uevent_env
> kobject: 'rx-3' (00000000b31dcd9f): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-3' (00000000b31dcd9f): auto cleanup kobject_del
> kobject: 'rx-3' (00000000b31dcd9f): calling ktype release
> kobject: 'rx-3': free name
> kobject: 'rx-2' (000000009df71198): kobject_cleanup, parent 0000000050815c59
> kobject: 'rx-2' (000000009df71198): auto cleanup 'remove' event
> kobject: 'rx-2' (000000009df71198): kobject_uevent_env
> kobject: 'rx-2' (000000009df71198): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-2' (000000009df71198): auto cleanup kobject_del
> kobject: 'rx-2' (000000009df71198): calling ktype release
> kobject: 'rx-2': free name
> kobject: 'rx-1' (000000002b4e5f7b): kobject_cleanup, parent 0000000050815c59
> kobject: 'rx-1' (000000002b4e5f7b): auto cleanup 'remove' event
> kobject: 'rx-1' (000000002b4e5f7b): kobject_uevent_env
> kobject: 'rx-1' (000000002b4e5f7b): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-1' (000000002b4e5f7b): auto cleanup kobject_del
> kobject: 'rx-1' (000000002b4e5f7b): calling ktype release
> kobject: 'rx-1': free name
> kobject: 'rx-0' (00000000ad1fbb20): kobject_cleanup, parent 0000000050815c59
> kobject: 'rx-0' (00000000ad1fbb20): auto cleanup 'remove' event
> kobject: 'rx-0' (00000000ad1fbb20): kobject_uevent_env
> kobject: 'rx-0' (00000000ad1fbb20): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (00000000ad1fbb20): auto cleanup kobject_del
> kobject: 'rx-0' (00000000ad1fbb20): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-15' (0000000079dd33bf): kobject_cleanup, parent
> 0000000050815c59
> kobject: 'tx-15' (0000000079dd33bf): auto cleanup 'remove' event
> kobject: 'tx-15' (0000000079dd33bf): kobject_uevent_env
> kobject: 'tx-15' (0000000079dd33bf): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-15' (0000000079dd33bf): auto cleanup kobject_del
> kobject: 'tx-15' (0000000079dd33bf): calling ktype release
> kobject: 'tx-15': free name
> kobject: 'tx-14' (00000000774eecc9): kobject_cleanup, parent
> 0000000050815c59
> kobject: 'tx-14' (00000000774eecc9): auto cleanup 'remove' event
> kobject: 'tx-14' (00000000774eecc9): kobject_uevent_env
> kobject: 'tx-14' (00000000774eecc9): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-14' (00000000774eecc9): auto cleanup kobject_del
> kobject: 'tx-14' (00000000774eecc9): calling ktype release
> kobject: 'tx-14': free name
> kobject: 'tx-13' (00000000ac078323): kobject_cleanup, parent
> 0000000050815c59
> kobject: 'tx-13' (00000000ac078323): auto cleanup 'remove' event
> kobject: 'tx-13' (00000000ac078323): kobject_uevent_env
> kobject: 'tx-13' (00000000ac078323): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-13' (00000000ac078323): auto cleanup kobject_del
> kobject: 'tx-13' (00000000ac078323): calling ktype release
> kobject: 'tx-13': free name
> kobject: 'tx-12' (00000000c3147e1d): kobject_cleanup, parent
> 0000000050815c59
> kobject: 'tx-12' (00000000c3147e1d): auto cleanup 'remove' event
> kobject: 'tx-12' (00000000c3147e1d): kobject_uevent_env
> kobject: 'tx-12' (00000000c3147e1d): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-12' (00000000c3147e1d): auto cleanup kobject_del
> kobject: 'tx-12' (00000000c3147e1d): calling ktype release
> kobject: 'tx-12': free name
> kobject: 'tx-11' (00000000e24898af): kobject_cleanup, parent
> 0000000050815c59
> kobject: 'tx-11' (00000000e24898af): auto cleanup 'remove' event
> kobject: 'tx-11' (00000000e24898af): kobject_uevent_env
> kobject: 'tx-11' (00000000e24898af): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-11' (00000000e24898af): auto cleanup kobject_del
> kobject: 'tx-11' (00000000e24898af): calling ktype release
> kobject: 'tx-11': free name
> kobject: 'tx-10' (00000000ceb84a21): kobject_cleanup, parent
> 0000000050815c59
> kobject: 'tx-10' (00000000ceb84a21): auto cleanup 'remove' event
> kobject: 'tx-10' (00000000ceb84a21): kobject_uevent_env
> kobject: 'tx-10' (00000000ceb84a21): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-10' (00000000ceb84a21): auto cleanup kobject_del
> kobject: 'tx-10' (00000000ceb84a21): calling ktype release
> kobject: 'tx-10': free name
> kobject: 'tx-9' (00000000eb7361fe): kobject_cleanup, parent 0000000050815c59
> kobject: 'tx-9' (00000000eb7361fe): auto cleanup 'remove' event
> kobject: 'tx-9' (00000000eb7361fe): kobject_uevent_env
> kobject: 'tx-9' (00000000eb7361fe): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-9' (00000000eb7361fe): auto cleanup kobject_del
> kobject: 'tx-9' (00000000eb7361fe): calling ktype release
> kobject: 'tx-9': free name
> kobject: 'tx-8' (0000000084ab0fd5): kobject_cleanup, parent 0000000050815c59
> kobject: 'tx-8' (0000000084ab0fd5): auto cleanup 'remove' event
> kobject: 'tx-8' (0000000084ab0fd5): kobject_uevent_env
> kobject: 'tx-8' (0000000084ab0fd5): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-8' (0000000084ab0fd5): auto cleanup kobject_del
> kobject: 'tx-8' (0000000084ab0fd5): calling ktype release
> kobject: 'tx-8': free name
> kobject: 'tx-7' (0000000032f6de46): kobject_cleanup, parent 0000000050815c59
> kobject: 'tx-7' (0000000032f6de46): auto cleanup 'remove' event
> kobject: 'tx-7' (0000000032f6de46): kobject_uevent_env
> kobject: 'tx-7' (0000000032f6de46): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-7' (0000000032f6de46): auto cleanup kobject_del
> kobject: 'tx-7' (0000000032f6de46): calling ktype release
> kobject: 'tx-7': free name
> kobject: 'tx-6' (0000000012755294): kobject_cleanup, parent 0000000050815c59
> kobject: 'tx-6' (0000000012755294): auto cleanup 'remove' event
> kobject: 'tx-6' (0000000012755294): kobject_uevent_env
> kobject: 'tx-6' (0000000012755294): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-6' (0000000012755294): auto cleanup kobject_del
> kobject: 'tx-6' (0000000012755294): calling ktype release
> kobject: 'tx-6': free name
> kobject: 'tx-5' (000000007a4ad818): kobject_cleanup, parent 0000000050815c59
> kobject: 'tx-5' (000000007a4ad818): auto cleanup 'remove' event
> kobject: 'tx-5' (000000007a4ad818): kobject_uevent_env
> kobject: 'tx-5' (000000007a4ad818): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-5' (000000007a4ad818): auto cleanup kobject_del
> kobject: 'tx-5' (000000007a4ad818): calling ktype release
> kobject: 'tx-5': free name
> kobject: 'tx-4' (00000000dc2ac209): kobject_cleanup, parent 0000000050815c59
> kobject: 'tx-4' (00000000dc2ac209): auto cleanup 'remove' event
> kobject: 'tx-4' (00000000dc2ac209): kobject_uevent_env
> kobject: 'tx-4' (00000000dc2ac209): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-4' (00000000dc2ac209): auto cleanup kobject_del
> kobject: 'tx-4' (00000000dc2ac209): calling ktype release
> kobject: 'tx-4': free name
> kobject: 'tx-3' (0000000002205b02): kobject_cleanup, parent 0000000050815c59
> kobject: 'tx-3' (0000000002205b02): auto cleanup 'remove' event
> kobject: 'tx-3' (0000000002205b02): kobject_uevent_env
> kobject: 'tx-3' (0000000002205b02): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-3' (0000000002205b02): auto cleanup kobject_del
> kobject: 'tx-3' (0000000002205b02): calling ktype release
> kobject: 'tx-3': free name
> kobject: 'tx-2' (000000007eaf7c6e): kobject_cleanup, parent 0000000050815c59
> kobject: 'tx-2' (000000007eaf7c6e): auto cleanup 'remove' event
> kobject: 'tx-2' (000000007eaf7c6e): kobject_uevent_env
> kobject: 'tx-2' (000000007eaf7c6e): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-2' (000000007eaf7c6e): auto cleanup kobject_del
> kobject: 'tx-2' (000000007eaf7c6e): calling ktype release
> kobject: 'tx-2': free name
> kobject: 'tx-1' (00000000064c3990): kobject_cleanup, parent 0000000050815c59
> kobject: 'tx-1' (00000000064c3990): auto cleanup 'remove' event
> kobject: 'tx-1' (00000000064c3990): kobject_uevent_env
> kobject: 'tx-1' (00000000064c3990): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-1' (00000000064c3990): auto cleanup kobject_del
> kobject: 'tx-1' (00000000064c3990): calling ktype release
> kobject: 'tx-1': free name
> kobject: 'tx-0' (000000003f0b1b90): kobject_cleanup, parent 0000000050815c59
> kobject: 'tx-0' (000000003f0b1b90): auto cleanup 'remove' event
> kobject: 'tx-0' (000000003f0b1b90): kobject_uevent_env
> kobject: 'tx-0' (000000003f0b1b90): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (000000003f0b1b90): auto cleanup kobject_del
> kobject: 'tx-0' (000000003f0b1b90): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (0000000050815c59): kobject_cleanup, parent
> (null)
> kobject: 'queues' (0000000050815c59): calling ktype release
> kobject: 'queues' (0000000050815c59): kset_release
> kobject: 'queues': free name
> kobject: 'team0' (00000000b406a93d): kobject_uevent_env
> kobject: 'team0' (00000000b406a93d): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> bond0 (unregistering): Released all slaves
> kobject: 'rx-15' (000000004bb085c8): kobject_cleanup, parent
> 0000000044f3bf3e
> kobject: 'rx-15' (000000004bb085c8): auto cleanup 'remove' event
> kobject: 'rx-15' (000000004bb085c8): kobject_uevent_env
> kobject: 'rx-15' (000000004bb085c8): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-15' (000000004bb085c8): auto cleanup kobject_del
> kobject: 'rx-15' (000000004bb085c8): calling ktype release
> kobject: 'rx-15': free name
> kobject: 'rx-14' (0000000026a5e3cc): kobject_cleanup, parent
> 0000000044f3bf3e
> kobject: 'rx-14' (0000000026a5e3cc): auto cleanup 'remove' event
> kobject: 'rx-14' (0000000026a5e3cc): kobject_uevent_env
> kobject: 'rx-14' (0000000026a5e3cc): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-14' (0000000026a5e3cc): auto cleanup kobject_del
> kobject: 'rx-14' (0000000026a5e3cc): calling ktype release
> kobject: 'rx-14': free name
> kobject: 'rx-13' (0000000027c0e7bf): kobject_cleanup, parent
> 0000000044f3bf3e
> kobject: 'rx-13' (0000000027c0e7bf): auto cleanup 'remove' event
> kobject: 'rx-13' (0000000027c0e7bf): kobject_uevent_env
> kobject: 'rx-13' (0000000027c0e7bf): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-13' (0000000027c0e7bf): auto cleanup kobject_del
> kobject: 'rx-13' (0000000027c0e7bf): calling ktype release
> kobject: 'rx-13': free name
> kobject: 'rx-12' (00000000adbdfa98): kobject_cleanup, parent
> 0000000044f3bf3e
> kobject: 'rx-12' (00000000adbdfa98): auto cleanup 'remove' event
> kobject: 'rx-12' (00000000adbdfa98): kobject_uevent_env
> kobject: 'rx-12' (00000000adbdfa98): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-12' (00000000adbdfa98): auto cleanup kobject_del
> kobject: 'rx-12' (00000000adbdfa98): calling ktype release
> kobject: 'rx-12': free name
> kobject: 'rx-11' (00000000ef788807): kobject_cleanup, parent
> 0000000044f3bf3e
> kobject: 'rx-11' (00000000ef788807): auto cleanup 'remove' event
> kobject: 'rx-11' (00000000ef788807): kobject_uevent_env
> kobject: 'rx-11' (00000000ef788807): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-11' (00000000ef788807): auto cleanup kobject_del
> kobject: 'rx-11' (00000000ef788807): calling ktype release
> kobject: 'rx-11': free name
> kobject: 'rx-10' (00000000d18b8da0): kobject_cleanup, parent
> 0000000044f3bf3e
> kobject: 'rx-10' (00000000d18b8da0): auto cleanup 'remove' event
> kobject: 'rx-10' (00000000d18b8da0): kobject_uevent_env
> kobject: 'rx-10' (00000000d18b8da0): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-10' (00000000d18b8da0): auto cleanup kobject_del
> kobject: 'rx-10' (00000000d18b8da0): calling ktype release
> kobject: 'rx-10': free name
> kobject: 'rx-9' (00000000dc892c43): kobject_cleanup, parent 0000000044f3bf3e
> kobject: 'rx-9' (00000000dc892c43): auto cleanup 'remove' event
> kobject: 'rx-9' (00000000dc892c43): kobject_uevent_env
> kobject: 'rx-9' (00000000dc892c43): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-9' (00000000dc892c43): auto cleanup kobject_del
> kobject: 'rx-9' (00000000dc892c43): calling ktype release
> kobject: 'rx-9': free name
> kobject: 'rx-8' (0000000045d4c044): kobject_cleanup, parent 0000000044f3bf3e
> kobject: 'rx-8' (0000000045d4c044): auto cleanup 'remove' event
> kobject: 'rx-8' (0000000045d4c044): kobject_uevent_env
> kobject: 'rx-8' (0000000045d4c044): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-8' (0000000045d4c044): auto cleanup kobject_del
> kobject: 'rx-8' (0000000045d4c044): calling ktype release
> kobject: 'rx-8': free name
> kobject: 'rx-7' (00000000c25c24f6): kobject_cleanup, parent 0000000044f3bf3e
> kobject: 'rx-7' (00000000c25c24f6): auto cleanup 'remove' event
> kobject: 'rx-7' (00000000c25c24f6): kobject_uevent_env
> kobject: 'rx-7' (00000000c25c24f6): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-7' (00000000c25c24f6): auto cleanup kobject_del
> kobject: 'rx-7' (00000000c25c24f6): calling ktype release
> kobject: 'rx-7': free name
> kobject: 'rx-6' (0000000081650165): kobject_cleanup, parent 0000000044f3bf3e
> kobject: 'rx-6' (0000000081650165): auto cleanup 'remove' event
> kobject: 'rx-6' (0000000081650165): kobject_uevent_env
> kobject: 'rx-6' (0000000081650165): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-6' (0000000081650165): auto cleanup kobject_del
> kobject: 'rx-6' (0000000081650165): calling ktype release
> kobject: 'rx-6': free name
> kobject: 'rx-5' (0000000034dcb760): kobject_cleanup, parent 0000000044f3bf3e
> kobject: 'rx-5' (0000000034dcb760): auto cleanup 'remove' event
> kobject: 'rx-5' (0000000034dcb760): kobject_uevent_env
> kobject: 'rx-5' (0000000034dcb760): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-5' (0000000034dcb760): auto cleanup kobject_del
> kobject: 'rx-5' (0000000034dcb760): calling ktype release
> kobject: 'rx-5': free name
> kobject: 'rx-4' (0000000097a4bc31): kobject_cleanup, parent 0000000044f3bf3e
> kobject: 'rx-4' (0000000097a4bc31): auto cleanup 'remove' event
> kobject: 'rx-4' (0000000097a4bc31): kobject_uevent_env
> kobject: 'rx-4' (0000000097a4bc31): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-4' (0000000097a4bc31): auto cleanup kobject_del
> kobject: 'rx-4' (0000000097a4bc31): calling ktype release
> kobject: 'rx-4': free name
> kobject: 'rx-3' (00000000ef7d83bf): kobject_cleanup, parent 0000000044f3bf3e
> kobject: 'rx-3' (00000000ef7d83bf): auto cleanup 'remove' event
> kobject: 'rx-3' (00000000ef7d83bf): kobject_uevent_env
> kobject: 'rx-3' (00000000ef7d83bf): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-3' (00000000ef7d83bf): auto cleanup kobject_del
> kobject: 'rx-3' (00000000ef7d83bf): calling ktype release
> kobject: 'rx-3': free name
> kobject: 'rx-2' (00000000cf5b24ae): kobject_cleanup, parent 0000000044f3bf3e
> kobject: 'rx-2' (00000000cf5b24ae): auto cleanup 'remove' event
> kobject: 'rx-2' (00000000cf5b24ae): kobject_uevent_env
> kobject: 'rx-2' (00000000cf5b24ae): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-2' (00000000cf5b24ae): auto cleanup kobject_del
> kobject: 'rx-2' (00000000cf5b24ae): calling ktype release
> kobject: 'rx-2': free name
> kobject: 'rx-1' (00000000d181e595): kobject_cleanup, parent 0000000044f3bf3e
> kobject: 'rx-1' (00000000d181e595): auto cleanup 'remove' event
> kobject: 'rx-1' (00000000d181e595): kobject_uevent_env
> kobject: 'rx-1' (00000000d181e595): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-1' (00000000d181e595): auto cleanup kobject_del
> kobject: 'rx-1' (00000000d181e595): calling ktype release
> kobject: 'rx-1': free name
> kobject: 'rx-0' (0000000098c85cd4): kobject_cleanup, parent 0000000044f3bf3e
> kobject: 'rx-0' (0000000098c85cd4): auto cleanup 'remove' event
> kobject: 'rx-0' (0000000098c85cd4): kobject_uevent_env
> kobject: 'rx-0' (0000000098c85cd4): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (0000000098c85cd4): auto cleanup kobject_del
> kobject: 'rx-0' (0000000098c85cd4): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-15' (0000000047275e00): kobject_cleanup, parent
> 0000000044f3bf3e
> kobject: 'tx-15' (0000000047275e00): auto cleanup 'remove' event
> kobject: 'tx-15' (0000000047275e00): kobject_uevent_env
> kobject: 'tx-15' (0000000047275e00): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-15' (0000000047275e00): auto cleanup kobject_del
> kobject: 'tx-15' (0000000047275e00): calling ktype release
> kobject: 'tx-15': free name
> kobject: 'tx-14' (0000000025ecd64a): kobject_cleanup, parent
> 0000000044f3bf3e
> kobject: 'tx-14' (0000000025ecd64a): auto cleanup 'remove' event
> kobject: 'tx-14' (0000000025ecd64a): kobject_uevent_env
> kobject: 'tx-14' (0000000025ecd64a): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-14' (0000000025ecd64a): auto cleanup kobject_del
> kobject: 'tx-14' (0000000025ecd64a): calling ktype release
> kobject: 'tx-14': free name
> kobject: 'tx-13' (00000000d83684b1): kobject_cleanup, parent
> 0000000044f3bf3e
> kobject: 'tx-13' (00000000d83684b1): auto cleanup 'remove' event
> kobject: 'tx-13' (00000000d83684b1): kobject_uevent_env
> kobject: 'tx-13' (00000000d83684b1): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-13' (00000000d83684b1): auto cleanup kobject_del
> kobject: 'tx-13' (00000000d83684b1): calling ktype release
> kobject: 'tx-13': free name
> kobject: 'tx-12' (00000000699aeb85): kobject_cleanup, parent
> 0000000044f3bf3e
> kobject: 'tx-12' (00000000699aeb85): auto cleanup 'remove' event
> kobject: 'tx-12' (00000000699aeb85): kobject_uevent_env
> kobject: 'tx-12' (00000000699aeb85): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-12' (00000000699aeb85): auto cleanup kobject_del
> kobject: 'tx-12' (00000000699aeb85): calling ktype release
> kobject: 'tx-12': free name
> kobject: 'tx-11' (000000002a6b04ac): kobject_cleanup, parent
> 0000000044f3bf3e
> kobject: 'tx-11' (000000002a6b04ac): auto cleanup 'remove' event
> kobject: 'tx-11' (000000002a6b04ac): kobject_uevent_env
> kobject: 'tx-11' (000000002a6b04ac): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-11' (000000002a6b04ac): auto cleanup kobject_del
> kobject: 'tx-11' (000000002a6b04ac): calling ktype release
> kobject: 'tx-11': free name
> kobject: 'tx-10' (0000000044c7f46e): kobject_cleanup, parent
> 0000000044f3bf3e
> kobject: 'tx-10' (0000000044c7f46e): auto cleanup 'remove' event
> kobject: 'tx-10' (0000000044c7f46e): kobject_uevent_env
> kobject: 'tx-10' (0000000044c7f46e): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-10' (0000000044c7f46e): auto cleanup kobject_del
> kobject: 'tx-10' (0000000044c7f46e): calling ktype release
> kobject: 'tx-10': free name
> kobject: 'tx-9' (00000000fe06a04f): kobject_cleanup, parent 0000000044f3bf3e
> kobject: 'tx-9' (00000000fe06a04f): auto cleanup 'remove' event
> kobject: 'tx-9' (00000000fe06a04f): kobject_uevent_env
> kobject: 'tx-9' (00000000fe06a04f): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-9' (00000000fe06a04f): auto cleanup kobject_del
> kobject: 'tx-9' (00000000fe06a04f): calling ktype release
> kobject: 'tx-9': free name
> kobject: 'tx-8' (00000000ea9cc0ef): kobject_cleanup, parent 0000000044f3bf3e
> kobject: 'tx-8' (00000000ea9cc0ef): auto cleanup 'remove' event
> kobject: 'tx-8' (00000000ea9cc0ef): kobject_uevent_env
> kobject: 'tx-8' (00000000ea9cc0ef): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-8' (00000000ea9cc0ef): auto cleanup kobject_del
> kobject: 'tx-8' (00000000ea9cc0ef): calling ktype release
> kobject: 'tx-8': free name
> kobject: 'tx-7' (000000008eba9d26): kobject_cleanup, parent 0000000044f3bf3e
> kobject: 'tx-7' (000000008eba9d26): auto cleanup 'remove' event
> kobject: 'tx-7' (000000008eba9d26): kobject_uevent_env
> kobject: 'tx-7' (000000008eba9d26): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-7' (000000008eba9d26): auto cleanup kobject_del
> kobject: 'tx-7' (000000008eba9d26): calling ktype release
> kobject: 'tx-7': free name
> kobject: 'tx-6' (00000000a5060619): kobject_cleanup, parent 0000000044f3bf3e
> kobject: 'tx-6' (00000000a5060619): auto cleanup 'remove' event
> kobject: 'tx-6' (00000000a5060619): kobject_uevent_env
> kobject: 'tx-6' (00000000a5060619): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-6' (00000000a5060619): auto cleanup kobject_del
> kobject: 'tx-6' (00000000a5060619): calling ktype release
> kobject: 'tx-6': free name
> kobject: 'tx-5' (00000000f15294a6): kobject_cleanup, parent 0000000044f3bf3e
> kobject: 'tx-5' (00000000f15294a6): auto cleanup 'remove' event
> kobject: 'tx-5' (00000000f15294a6): kobject_uevent_env
> kobject: 'tx-5' (00000000f15294a6): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-5' (00000000f15294a6): auto cleanup kobject_del
> kobject: 'tx-5' (00000000f15294a6): calling ktype release
> kobject: 'tx-5': free name
> kobject: 'tx-4' (0000000083a35427): kobject_cleanup, parent 0000000044f3bf3e
> kobject: 'tx-4' (0000000083a35427): auto cleanup 'remove' event
> kobject: 'tx-4' (0000000083a35427): kobject_uevent_env
> kobject: 'tx-4' (0000000083a35427): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-4' (0000000083a35427): auto cleanup kobject_del
> kobject: 'tx-4' (0000000083a35427): calling ktype release
> kobject: 'tx-4': free name
> kobject: 'tx-3' (000000008529c5cc): kobject_cleanup, parent 0000000044f3bf3e
> kobject: 'tx-3' (000000008529c5cc): auto cleanup 'remove' event
> kobject: 'tx-3' (000000008529c5cc): kobject_uevent_env
> kobject: 'tx-3' (000000008529c5cc): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-3' (000000008529c5cc): auto cleanup kobject_del
> kobject: 'tx-3' (000000008529c5cc): calling ktype release
> kobject: 'tx-3': free name
> kobject: 'tx-2' (0000000017c0b776): kobject_cleanup, parent 0000000044f3bf3e
> kobject: 'tx-2' (0000000017c0b776): auto cleanup 'remove' event
> kobject: 'tx-2' (0000000017c0b776): kobject_uevent_env
> kobject: 'tx-2' (0000000017c0b776): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-2' (0000000017c0b776): auto cleanup kobject_del
> kobject: 'tx-2' (0000000017c0b776): calling ktype release
> kobject: 'tx-2': free name
> kobject: 'tx-1' (000000006d1e36f8): kobject_cleanup, parent 0000000044f3bf3e
> kobject: 'tx-1' (000000006d1e36f8): auto cleanup 'remove' event
> kobject: 'tx-1' (000000006d1e36f8): kobject_uevent_env
> kobject: 'tx-1' (000000006d1e36f8): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-1' (000000006d1e36f8): auto cleanup kobject_del
> kobject: 'tx-1' (000000006d1e36f8): calling ktype release
> kobject: 'tx-1': free name
> kobject: 'tx-0' (0000000030e486c2): kobject_cleanup, parent 0000000044f3bf3e
> kobject: 'tx-0' (0000000030e486c2): auto cleanup 'remove' event
> kobject: 'tx-0' (0000000030e486c2): kobject_uevent_env
> kobject: 'tx-0' (0000000030e486c2): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (0000000030e486c2): auto cleanup kobject_del
> kobject: 'tx-0' (0000000030e486c2): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (0000000044f3bf3e): kobject_cleanup, parent
> (null)
> kobject: 'queues' (0000000044f3bf3e): calling ktype release
> kobject: 'queues' (0000000044f3bf3e): kset_release
> kobject: 'queues': free name
> kobject: 'bond0' (00000000ed988091): kobject_uevent_env
> kobject: 'bond0' (00000000ed988091): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (000000007f24355c): kobject_cleanup, parent 0000000024435212
> kobject: 'rx-0' (000000007f24355c): auto cleanup 'remove' event
> kobject: 'rx-0' (000000007f24355c): kobject_uevent_env
> kobject: 'rx-0' (000000007f24355c): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (000000007f24355c): auto cleanup kobject_del
> kobject: 'rx-0' (000000007f24355c): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (00000000f475596c): kobject_cleanup, parent 0000000024435212
> kobject: 'tx-0' (00000000f475596c): auto cleanup 'remove' event
> kobject: 'tx-0' (00000000f475596c): kobject_uevent_env
> kobject: 'tx-0' (00000000f475596c): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (00000000f475596c): auto cleanup kobject_del
> kobject: 'tx-0' (00000000f475596c): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (0000000024435212): kobject_cleanup, parent
> (null)
> kobject: 'queues' (0000000024435212): calling ktype release
> kobject: 'queues' (0000000024435212): kset_release
> kobject: 'queues': free name
> kobject: 'vcan0' (00000000905daa33): kobject_uevent_env
> kobject: 'vcan0' (00000000905daa33): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (00000000aa67551c): kobject_cleanup, parent 00000000887383c7
> kobject: 'rx-0' (00000000aa67551c): auto cleanup 'remove' event
> kobject: 'rx-0' (00000000aa67551c): kobject_uevent_env
> kobject: 'rx-0' (00000000aa67551c): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (00000000aa67551c): auto cleanup kobject_del
> kobject: 'rx-0' (00000000aa67551c): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (0000000024a7ac66): kobject_cleanup, parent 00000000887383c7
> kobject: 'tx-0' (0000000024a7ac66): auto cleanup 'remove' event
> kobject: 'tx-0' (0000000024a7ac66): kobject_uevent_env
> kobject: 'tx-0' (0000000024a7ac66): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (0000000024a7ac66): auto cleanup kobject_del
> kobject: 'tx-0' (0000000024a7ac66): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (00000000887383c7): kobject_cleanup, parent
> (null)
> kobject: 'queues' (00000000887383c7): calling ktype release
> kobject: 'queues' (00000000887383c7): kset_release
> kobject: 'queues': free name
> kobject: 'bridge0' (00000000978d6f60): kobject_uevent_env
> kobject: 'bridge0' (00000000978d6f60): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (0000000036604b75): kobject_cleanup, parent 000000007ab044d8
> kobject: 'rx-0' (0000000036604b75): auto cleanup 'remove' event
> kobject: 'rx-0' (0000000036604b75): kobject_uevent_env
> kobject: 'rx-0' (0000000036604b75): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (0000000036604b75): auto cleanup kobject_del
> kobject: 'rx-0' (0000000036604b75): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (00000000dbfc0eb6): kobject_cleanup, parent 000000007ab044d8
> kobject: 'tx-0' (00000000dbfc0eb6): auto cleanup 'remove' event
> kobject: 'tx-0' (00000000dbfc0eb6): kobject_uevent_env
> kobject: 'tx-0' (00000000dbfc0eb6): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (00000000dbfc0eb6): auto cleanup kobject_del
> kobject: 'tx-0' (00000000dbfc0eb6): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (000000007ab044d8): kobject_cleanup, parent
> (null)
> kobject: 'queues' (000000007ab044d8): calling ktype release
> kobject: 'queues' (000000007ab044d8): kset_release
> kobject: 'queues': free name
> kobject: 'lo' (0000000082a4c1a1): kobject_uevent_env
> kobject: 'lo' (0000000082a4c1a1): kobject_uevent_env: uevent_suppress caused
> the event to drop!
> kobject: 'lo' (000000003dbce32e): kobject_add_internal: parent: 'net', set:
> 'devices'
> kobject: 'lo' (000000003dbce32e): kobject_uevent_env
> kobject: 'lo' (000000003dbce32e): fill_kobj_path: path =
> '/devices/virtual/net/lo'
> kobject: 'queues' (0000000087095d42): kobject_add_internal: parent: 'lo',
> set: '<NULL>'
> kobject: 'queues' (0000000087095d42): kobject_uevent_env
> kobject: 'queues' (0000000087095d42): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'rx-0' (00000000aadbdd18): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (00000000aadbdd18): kobject_uevent_env
> kobject: 'rx-0' (00000000aadbdd18): fill_kobj_path: path =
> '/devices/virtual/net/lo/queues/rx-0'
> kobject: 'tx-0' (00000000ec3755bd): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (00000000ec3755bd): kobject_uevent_env
> kobject: 'tx-0' (00000000ec3755bd): fill_kobj_path: path =
> '/devices/virtual/net/lo/queues/tx-0'
> kobject: 'tunl0' (000000005a2b35a8): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'tunl0' (000000005a2b35a8): kobject_uevent_env
> kobject: 'tunl0' (000000005a2b35a8): fill_kobj_path: path =
> '/devices/virtual/net/tunl0'
> kobject: 'queues' (00000000916a0660): kobject_add_internal: parent: 'tunl0',
> set: '<NULL>'
> kobject: 'loop2' (00000000a2faca69): kobject_uevent_env
> kobject: 'queues' (00000000916a0660): kobject_uevent_env
> kobject: 'loop2' (00000000a2faca69): fill_kobj_path: path =
> '/devices/virtual/block/loop2'
> kobject: 'queues' (00000000916a0660): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'rx-0' (00000000f392c7a1): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (00000000f392c7a1): kobject_uevent_env
> kobject: 'rx-0' (00000000f392c7a1): fill_kobj_path: path =
> '/devices/virtual/net/tunl0/queues/rx-0'
> kobject: 'tx-0' (00000000b80f585f): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (00000000b80f585f): kobject_uevent_env
> kobject: 'tx-0' (00000000b80f585f): fill_kobj_path: path =
> '/devices/virtual/net/tunl0/queues/tx-0'
> kobject: 'team_slave_1' (000000001c55f79f): kobject_cleanup, parent
> (null)
> kobject: 'loop3' (00000000f2e9f2e2): kobject_uevent_env
> kobject: 'loop3' (00000000f2e9f2e2): fill_kobj_path: path =
> '/devices/virtual/block/loop3'
> kobject: 'gre0' (0000000046f6de73): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'team_slave_1' (000000001c55f79f): auto cleanup 'remove' event
> kobject: 'team_slave_1' (000000001c55f79f): kobject_uevent_env
> kobject: 'loop5' (00000000894e5376): kobject_uevent_env
> kobject: 'team_slave_1' (000000001c55f79f): kobject_uevent_env:
> uevent_suppress caused the event to drop!
> kobject: 'loop5' (00000000894e5376): fill_kobj_path: path =
> '/devices/virtual/block/loop5'
> kobject: 'team_slave_1' (000000001c55f79f): calling ktype release
> kobject: 'team_slave_1': free name
> kobject: 'gre0' (0000000046f6de73): kobject_uevent_env
> kobject: 'gre0' (0000000046f6de73): fill_kobj_path: path =
> '/devices/virtual/net/gre0'
> kobject: 'queues' (0000000094651c78): kobject_add_internal: parent: 'gre0',
> set: '<NULL>'
> kobject: 'queues' (0000000094651c78): kobject_uevent_env
> kobject: 'queues' (0000000094651c78): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'rx-0' (00000000aaa5f00b): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (00000000aaa5f00b): kobject_uevent_env
> kobject: 'rx-0' (00000000aaa5f00b): fill_kobj_path: path =
> '/devices/virtual/net/gre0/queues/rx-0'
> kobject: 'tx-0' (000000001e906116): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (000000001e906116): kobject_uevent_env
> kobject: 'tx-0' (000000001e906116): fill_kobj_path: path =
> '/devices/virtual/net/gre0/queues/tx-0'
> kobject: 'gretap0' (00000000b1c22966): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'gretap0' (00000000b1c22966): kobject_uevent_env
> kobject: 'gretap0' (00000000b1c22966): fill_kobj_path: path =
> '/devices/virtual/net/gretap0'
> kobject: 'queues' (00000000c4e1f1cc): kobject_add_internal: parent:
> 'gretap0', set: '<NULL>'
> kobject: 'queues' (00000000c4e1f1cc): kobject_uevent_env
> kobject: 'queues' (00000000c4e1f1cc): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'rx-0' (00000000d7d1c263): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (00000000d7d1c263): kobject_uevent_env
> kobject: 'rx-0' (00000000d7d1c263): fill_kobj_path: path =
> '/devices/virtual/net/gretap0/queues/rx-0'
> kobject: 'tx-0' (000000005e35f016): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (000000005e35f016): kobject_uevent_env
> kobject: 'tx-0' (000000005e35f016): fill_kobj_path: path =
> '/devices/virtual/net/gretap0/queues/tx-0'
> kobject: 'veth1_to_team' (00000000bb1a6fa8): kobject_cleanup, parent
> (null)
> kobject: 'erspan0' (00000000e21ea9b9): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'veth1_to_team' (00000000bb1a6fa8): auto cleanup 'remove' event
> kobject: 'erspan0' (00000000e21ea9b9): kobject_uevent_env
> kobject: 'veth1_to_team' (00000000bb1a6fa8): kobject_uevent_env
> kobject: 'erspan0' (00000000e21ea9b9): fill_kobj_path: path =
> '/devices/virtual/net/erspan0'
> kobject: 'veth1_to_team' (00000000bb1a6fa8): kobject_uevent_env:
> uevent_suppress caused the event to drop!
> kobject: 'queues' (00000000938ca38b): kobject_add_internal: parent:
> 'erspan0', set: '<NULL>'
> kobject: 'veth1_to_team' (00000000bb1a6fa8): calling ktype release
> kobject: 'queues' (00000000938ca38b): kobject_uevent_env
> kobject: 'veth1_to_team': free name
> kobject: 'queues' (00000000938ca38b): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'rx-0' (00000000235b8fb4): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (00000000235b8fb4): kobject_uevent_env
> kobject: 'rx-0' (00000000235b8fb4): fill_kobj_path: path =
> '/devices/virtual/net/erspan0/queues/rx-0'
> kobject: 'tx-0' (00000000c515958a): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (00000000c515958a): kobject_uevent_env
> kobject: 'tx-0' (00000000c515958a): fill_kobj_path: path =
> '/devices/virtual/net/erspan0/queues/tx-0'
> kobject: 'ip_vti0' (00000000baddc3ab): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'ip_vti0' (00000000baddc3ab): kobject_uevent_env
> kobject: 'ip_vti0' (00000000baddc3ab): fill_kobj_path: path =
> '/devices/virtual/net/ip_vti0'
> kobject: 'queues' (00000000d1b7734a): kobject_add_internal: parent:
> 'ip_vti0', set: '<NULL>'
> kobject: 'queues' (00000000d1b7734a): kobject_uevent_env
> kobject: 'queues' (00000000d1b7734a): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'rx-0' (0000000024e9bcbe): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (0000000024e9bcbe): kobject_uevent_env
> kobject: 'rx-0' (0000000024e9bcbe): fill_kobj_path: path =
> '/devices/virtual/net/ip_vti0/queues/rx-0'
> kobject: 'tx-0' (0000000057e53e9d): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (0000000057e53e9d): kobject_uevent_env
> kobject: 'tx-0' (0000000057e53e9d): fill_kobj_path: path =
> '/devices/virtual/net/ip_vti0/queues/tx-0'
> kobject: 'team_slave_0' (000000004579aa4f): kobject_cleanup, parent
> (null)
> kobject: 'ip6_vti0' (00000000d97953a2): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'team_slave_0' (000000004579aa4f): auto cleanup 'remove' event
> kobject: 'ip6_vti0' (00000000d97953a2): kobject_uevent_env
> kobject: 'team_slave_0' (000000004579aa4f): kobject
>
> ---
> This bug is generated by a bot. It may contain errors.
> See https://goo.gl/tpsmEJ for more information about syzbot.
> syzbot engineers can be reached at syzkaller@googlegroups.com.
>
> syzbot will keep track of this bug report. See:
> https://goo.gl/tpsmEJ#bug-status-tracking for how to communicate with
> syzbot.
On Wed, Sep 26, 2018 at 7:33 AM Miklos Szeredi <miklos@szeredi.hu> wrote:
>
> [Cc linux-unionfs]
>
> On Wed, Sep 26, 2018 at 1:44 AM, syzbot
> <syzbot+a55ccfc8a853d3cff213@syzkaller.appspotmail.com> wrote:
> > Hello,
> >
> > syzbot found the following crash on:
> >
> > HEAD commit: 2dd68cc7fd8c Merge gitolite.kernel.org:/pub/scm/linux/kern..
> > git tree: upstream
> > console output: https://syzkaller.appspot.com/x/log.txt?x=111a60e6400000
> > kernel config: https://syzkaller.appspot.com/x/.config?x=22a62640793a83c9
> > dashboard link: https://syzkaller.appspot.com/bug?extid=a55ccfc8a853d3cff213
> > compiler: gcc (GCC) 8.0.1 20180413 (experimental)
> >
> > Unfortunately, I don't have any reproducer for this crash yet.
> >
> > IMPORTANT: if you fix the bug, please add the following tag to the commit:
> > Reported-by: syzbot+a55ccfc8a853d3cff213@syzkaller.appspotmail.com
> >
> > ntfs: (device loop1): ntfs_fill_super(): Unable to determine device size.
> > team0 (unregistering): Port device team_slave_1 removed
> > kobject: 'team_slave_1' (000000001c55f79f): kobject_uevent_env
> >
> > ======================================================
> > WARNING: possible circular locking dependency detected
> > kobject: 'team_slave_1' (000000001c55f79f): kobject_uevent_env:
> > uevent_suppress caused the event to drop!
> > 4.19.0-rc5+ #253 Not tainted
> > ------------------------------------------------------
> > syz-executor1/545 is trying to acquire lock:
> > 00000000b04209e4 (&ovl_i_mutex_dir_key[depth]){++++}, at: inode_lock_shared
> > include/linux/fs.h:748 [inline]
> > 00000000b04209e4 (&ovl_i_mutex_dir_key[depth]){++++}, at: do_last
> > fs/namei.c:3323 [inline]
> > 00000000b04209e4 (&ovl_i_mutex_dir_key[depth]){++++}, at:
> > path_openat+0x250d/0x5160 fs/namei.c:3534
> > kobject: 'rx-0' (00000000ca3546e9): kobject_cleanup, parent 000000004d034f96
> >
> > but task is already holding lock:
> > 0000000044500cca (&sig->cred_guard_mutex){+.+.}, at:
> > prepare_bprm_creds+0x53/0x120 fs/exec.c:1404
> >
> > 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+0x166/0x1700 kernel/locking/mutex.c:1072
> > kobject: 'rx-0' (00000000ca3546e9): auto cleanup 'remove' event
> > mutex_lock_killable_nested+0x16/0x20 kernel/locking/mutex.c:1102
> > lock_trace+0x4c/0xe0 fs/proc/base.c:384
> > proc_pid_stack+0x196/0x3b0 fs/proc/base.c:420
> > proc_single_show+0x101/0x190 fs/proc/base.c:723
> > seq_read+0x4af/0x1150 fs/seq_file.c:229
> > do_loop_readv_writev fs/read_write.c:700 [inline]
> > do_iter_read+0x4a3/0x650 fs/read_write.c:924
> > kobject: 'rx-0' (00000000ca3546e9): kobject_uevent_env
> > vfs_readv+0x175/0x1c0 fs/read_write.c:986
> > do_preadv+0x1cc/0x280 fs/read_write.c:1070
> > __do_sys_preadv fs/read_write.c:1120 [inline]
> > __se_sys_preadv fs/read_write.c:1115 [inline]
> > __x64_sys_preadv+0x9a/0xf0 fs/read_write.c:1115
> > do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
> > kobject: 'rx-0' (00000000ca3546e9): kobject_uevent_env: uevent_suppress
> > caused the event to drop!
> > entry_SYSCALL_64_after_hwframe+0x49/0xbe
> >
> > -> #2 (&p->lock){+.+.}:
> > __mutex_lock_common kernel/locking/mutex.c:925 [inline]
> > __mutex_lock+0x166/0x1700 kernel/locking/mutex.c:1072
> > mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087
> > seq_read+0x71/0x1150 fs/seq_file.c:161
> > do_loop_readv_writev fs/read_write.c:700 [inline]
> > do_iter_read+0x4a3/0x650 fs/read_write.c:924
> > vfs_readv+0x175/0x1c0 fs/read_write.c:986
> > kobject: 'rx-0' (00000000ca3546e9): auto cleanup kobject_del
> > kernel_readv fs/splice.c:362 [inline]
> > default_file_splice_read+0x53c/0xb20 fs/splice.c:417
> > do_splice_to+0x12e/0x190 fs/splice.c:881
> > splice_direct_to_actor+0x270/0x8f0 fs/splice.c:953
> > do_splice_direct+0x2d4/0x420 fs/splice.c:1062
> > do_sendfile+0x62a/0xe20 fs/read_write.c:1440
> > __do_sys_sendfile64 fs/read_write.c:1495 [inline]
> > __se_sys_sendfile64 fs/read_write.c:1487 [inline]
> > __x64_sys_sendfile64+0x15d/0x250 fs/read_write.c:1487
> > do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
> > kobject: 'rx-0' (00000000ca3546e9): calling ktype release
> > entry_SYSCALL_64_after_hwframe+0x49/0xbe
> >
> > -> #1 (sb_writers#5){.+.+}:
> > 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+0x214/0x370 fs/super.c:1387
> > sb_start_write include/linux/fs.h:1566 [inline]
> > mnt_want_write+0x3f/0xc0 fs/namespace.c:360
> > ovl_want_write+0x76/0xa0 fs/overlayfs/util.c:24
> > kobject: 'rx-0': free name
> > ovl_create_object+0x142/0x3a0 fs/overlayfs/dir.c:596
> > ovl_create+0x2b/0x30 fs/overlayfs/dir.c:627
> > lookup_open+0x1319/0x1b90 fs/namei.c:3234
> > do_last fs/namei.c:3324 [inline]
> > path_openat+0x15e7/0x5160 fs/namei.c:3534
> > do_filp_open+0x255/0x380 fs/namei.c:3564
> > do_sys_open+0x568/0x700 fs/open.c:1063
> > ksys_open include/linux/syscalls.h:1276 [inline]
> > __do_sys_creat fs/open.c:1121 [inline]
> > __se_sys_creat fs/open.c:1119 [inline]
> > __x64_sys_creat+0x61/0x80 fs/open.c:1119
> > kobject: 'tx-0' (000000006100c4d9): kobject_cleanup, parent 000000004d034f96
> > do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
> > entry_SYSCALL_64_after_hwframe+0x49/0xbe
> >
> > -> #0 (&ovl_i_mutex_dir_key[depth]){++++}:
> > lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3900
> > down_read+0xb0/0x1d0 kernel/locking/rwsem.c:24
> > inode_lock_shared include/linux/fs.h:748 [inline]
> > do_last fs/namei.c:3323 [inline]
> > path_openat+0x250d/0x5160 fs/namei.c:3534
> > kobject: 'tx-0' (000000006100c4d9): auto cleanup 'remove' event
> > do_filp_open+0x255/0x380 fs/namei.c:3564
> > do_open_execat+0x221/0x8e0 fs/exec.c:853
> > __do_execve_file.isra.33+0x173f/0x2540 fs/exec.c:1755
> > do_execveat_common fs/exec.c:1866 [inline]
> > do_execve fs/exec.c:1883 [inline]
> > __do_sys_execve fs/exec.c:1964 [inline]
> > __se_sys_execve fs/exec.c:1959 [inline]
> > __x64_sys_execve+0x8f/0xc0 fs/exec.c:1959
> > do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
> > kobject: 'tx-0' (000000006100c4d9): kobject_uevent_env
> > 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
> >
So this is interesting... if there is a file in overlayfs lower layer with
the f_op read = seq_read then &p->lock in the chain above could be
takes after ovl locks and that is in reveres order to the order of locks
in execve on an overlayfs file.
On the one hand, it is possible (not sure if desirable) to use filesystems
with seq_file like debugfs as overlay lower fs, but on the other hand,
it is not possible to copy up a debugfs file with its original content
because (at least for most files I looked) the inode size is reported as 0.
Also, from v4.19-rc1, with stacked f_op, ovl_read_iter() calls vfs_iter_read(),
so overlayfs is no longer tolerant to underlying files that implement f_op read
(and not read_iter), thus, it is no longer possible to read lower debugfs files.
That said, if there are files in lower layer that user seq_read f_op and have
non zero inode size, the deadlock reported above might be possible.
Miklos,
What do you recon we should do?
Blacklist debugfs just like procfs was blacklisted from fs stacking?
Improve the heuristics of ovl_dentry_weird() to cover debugfs and friends?
Should we fix ovl_read_iter() to allow reading from lower without
read_iter f_op?
Or should we deny copy up of lower files without read_iter f_op?
Neither?
Amir.
On Thu, Sep 27, 2018 at 8:05 AM, Amir Goldstein <amir73il@gmail.com> wrote:
> So this is interesting... if there is a file in overlayfs lower layer with
> the f_op read = seq_read then &p->lock in the chain above could be
> takes after ovl locks and that is in reveres order to the order of locks
> in execve on an overlayfs file.
>
> On the one hand, it is possible (not sure if desirable) to use filesystems
> with seq_file like debugfs as overlay lower fs, but on the other hand,
> it is not possible to copy up a debugfs file with its original content
> because (at least for most files I looked) the inode size is reported as 0.
>
> Also, from v4.19-rc1, with stacked f_op, ovl_read_iter() calls vfs_iter_read(),
> so overlayfs is no longer tolerant to underlying files that implement f_op read
> (and not read_iter), thus, it is no longer possible to read lower debugfs files.
>
> That said, if there are files in lower layer that user seq_read f_op and have
> non zero inode size, the deadlock reported above might be possible.
>
> Miklos,
>
> What do you recon we should do?
> Blacklist debugfs just like procfs was blacklisted from fs stacking?
> Improve the heuristics of ovl_dentry_weird() to cover debugfs and friends?
I think that's the best plan. There doesn't seem to be any sense in
supporting debugfs and similar weirdness as lower layer, so the best
course of action would be to deny at the earilest possible point in
time.
Thanks,
Miklos
On Thu, Sep 27, 2018 at 9:36 AM Miklos Szeredi <miklos@szeredi.hu> wrote:
>
> On Thu, Sep 27, 2018 at 8:05 AM, Amir Goldstein <amir73il@gmail.com> wrote:
>
> > So this is interesting... if there is a file in overlayfs lower layer with
> > the f_op read = seq_read then &p->lock in the chain above could be
> > takes after ovl locks and that is in reveres order to the order of locks
> > in execve on an overlayfs file.
> >
> > On the one hand, it is possible (not sure if desirable) to use filesystems
> > with seq_file like debugfs as overlay lower fs, but on the other hand,
> > it is not possible to copy up a debugfs file with its original content
> > because (at least for most files I looked) the inode size is reported as 0.
> >
> > Also, from v4.19-rc1, with stacked f_op, ovl_read_iter() calls vfs_iter_read(),
> > so overlayfs is no longer tolerant to underlying files that implement f_op read
> > (and not read_iter), thus, it is no longer possible to read lower debugfs files.
> >
> > That said, if there are files in lower layer that user seq_read f_op and have
> > non zero inode size, the deadlock reported above might be possible.
> >
> > Miklos,
> >
> > What do you recon we should do?
> > Blacklist debugfs just like procfs was blacklisted from fs stacking?
> > Improve the heuristics of ovl_dentry_weird() to cover debugfs and friends?
>
> I think that's the best plan. There doesn't seem to be any sense in
> supporting debugfs and similar weirdness as lower layer, so the best
> course of action would be to deny at the earilest possible point in
> time.
>
OK. I will leave to you to find the Weirdest Common Denominator
of debugfs and friends.
But there could also be a filesystem with sporadic special files
with seq_read (or no read_iter f_op), or maybe our Weird heuristics didn't
catch the filesystem.
We might want to block those files from being copied up on the grounds that
they cannot be read from overlay before copy up anyway.
Thanks,
Amir.
syzbot has found a reproducer for the following crash on: HEAD commit: 3f018f4a Add linux-next specific files for 20190418 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=128f767b200000 kernel config: https://syzkaller.appspot.com/x/.config?x=faa7bdc352fc157e dashboard link: https://syzkaller.appspot.com/bug?extid=a55ccfc8a853d3cff213 compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14fb9457200000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+a55ccfc8a853d3cff213@syzkaller.appspotmail.com ====================================================== WARNING: possible circular locking dependency detected 5.1.0-rc5-next-20190418 #28 Not tainted ------------------------------------------------------ syz-executor.0/8098 is trying to acquire lock: 000000006bd07a6a (&ovl_i_mutex_dir_key[depth]#2){++++}, at: inode_lock_shared include/linux/fs.h:782 [inline] 000000006bd07a6a (&ovl_i_mutex_dir_key[depth]#2){++++}, at: do_last fs/namei.c:3321 [inline] 000000006bd07a6a (&ovl_i_mutex_dir_key[depth]#2){++++}, at: path_openat+0x1e98/0x46e0 fs/namei.c:3533 but task is already holding lock: 0000000046f9863b (&sig->cred_guard_mutex){+.+.}, at: prepare_bprm_creds fs/exec.c:1407 [inline] 0000000046f9863b (&sig->cred_guard_mutex){+.+.}, at: __do_execve_file.isra.0+0x376/0x23f0 fs/exec.c:1750 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #4 (&sig->cred_guard_mutex){+.+.}: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4200 __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:2739 proc_tgid_io_accounting+0x23/0x30 fs/proc/base.c:2788 proc_single_show+0xf6/0x170 fs/proc/base.c:743 seq_read+0x4db/0x1130 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+0x4a9/0x660 fs/read_write.c:922 vfs_readv+0xf0/0x160 fs/read_write.c:984 kernel_readv fs/splice.c:358 [inline] default_file_splice_read+0x475/0x890 fs/splice.c:413 do_splice_to+0x12a/0x190 fs/splice.c:876 do_splice+0x110b/0x1420 fs/splice.c:1183 __do_sys_splice fs/splice.c:1424 [inline] __se_sys_splice fs/splice.c:1404 [inline] __x64_sys_splice+0x2c6/0x330 fs/splice.c:1404 do_syscall_64+0x103/0x670 arch/x86/entry/common.c:298 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #3 (&p->lock){+.+.}: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4200 __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+0x1fe/0x2c0 fs/proc/inode.c:227 do_loop_readv_writev fs/read_write.c:701 [inline] do_loop_readv_writev fs/read_write.c:688 [inline] do_iter_read+0x4a9/0x660 fs/read_write.c:922 vfs_readv+0xf0/0x160 fs/read_write.c:984 kernel_readv fs/splice.c:358 [inline] default_file_splice_read+0x475/0x890 fs/splice.c:413 do_splice_to+0x12a/0x190 fs/splice.c:876 do_splice+0x110b/0x1420 fs/splice.c:1183 __do_sys_splice fs/splice.c:1424 [inline] __se_sys_splice fs/splice.c:1404 [inline] __x64_sys_splice+0x2c6/0x330 fs/splice.c:1404 do_syscall_64+0x103/0x670 arch/x86/entry/common.c:298 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #2 (&pipe->mutex/1){+.+.}: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4200 __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_nested fs/pipe.c:62 [inline] pipe_lock+0x6e/0x80 fs/pipe.c:70 iter_file_splice_write+0x18b/0xbe0 fs/splice.c:696 do_splice_from fs/splice.c:847 [inline] do_splice+0x70a/0x1420 fs/splice.c:1154 __do_sys_splice fs/splice.c:1424 [inline] __se_sys_splice fs/splice.c:1404 [inline] __x64_sys_splice+0x2c6/0x330 fs/splice.c:1404 do_syscall_64+0x103/0x670 arch/x86/entry/common.c:298 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #1 (sb_writers#5){.+.+}: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4200 percpu_down_read include/linux/percpu-rwsem.h:36 [inline] __sb_start_write+0x20b/0x360 fs/super.c:1613 sb_start_write include/linux/fs.h:1621 [inline] mnt_want_write+0x3f/0xc0 fs/namespace.c:358 ovl_want_write+0x76/0xa0 fs/overlayfs/util.c:24 ovl_do_remove+0xe9/0xd70 fs/overlayfs/dir.c:840 ovl_rmdir+0x1b/0x20 fs/overlayfs/dir.c:890 vfs_rmdir fs/namei.c:3878 [inline] vfs_rmdir+0x19c/0x470 fs/namei.c:3857 do_rmdir+0x39e/0x420 fs/namei.c:3939 __do_sys_rmdir fs/namei.c:3957 [inline] __se_sys_rmdir fs/namei.c:3955 [inline] __x64_sys_rmdir+0x36/0x40 fs/namei.c:3955 do_syscall_64+0x103/0x670 arch/x86/entry/common.c:298 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #0 (&ovl_i_mutex_dir_key[depth]#2){++++}: check_prevs_add kernel/locking/lockdep.c:2322 [inline] validate_chain kernel/locking/lockdep.c:2703 [inline] __lock_acquire+0x239c/0x3fb0 kernel/locking/lockdep.c:3690 lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4200 down_read+0x3f/0x1a0 kernel/locking/rwsem.c:24 inode_lock_shared include/linux/fs.h:782 [inline] do_last fs/namei.c:3321 [inline] path_openat+0x1e98/0x46e0 fs/namei.c:3533 do_filp_open+0x1a1/0x280 fs/namei.c:3563 do_open_execat+0x137/0x690 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:1958 [inline] __se_sys_execve fs/exec.c:1953 [inline] __x64_sys_execve+0x8f/0xc0 fs/exec.c:1953 do_syscall_64+0x103/0x670 arch/x86/entry/common.c:298 entry_SYSCALL_64_after_hwframe+0x49/0xbe other info that might help us debug this: Chain exists of: &ovl_i_mutex_dir_key[depth]#2 --> &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]#2); *** DEADLOCK *** 1 lock held by syz-executor.0/8098: #0: 0000000046f9863b (&sig->cred_guard_mutex){+.+.}, at: prepare_bprm_creds fs/exec.c:1407 [inline] #0: 0000000046f9863b (&sig->cred_guard_mutex){+.+.}, at: __do_execve_file.isra.0+0x376/0x23f0 fs/exec.c:1750 stack backtrace: CPU: 0 PID: 8098 Comm: syz-executor.0 Not tainted 5.1.0-rc5-next-20190418 #28 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:1560 check_prev_add.constprop.0+0xf11/0x23c0 kernel/locking/lockdep.c:2209 check_prevs_add kernel/locking/lockdep.c:2322 [inline] validate_chain kernel/locking/lockdep.c:2703 [inline] __lock_acquire+0x239c/0x3fb0 kernel/locking/lockdep.c:3690 lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4200 down_read+0x3f/0x1a0 kernel/locking/rwsem.c:24 inode_lock_shared include/linux/fs.h:782 [inline] do_last fs/namei.c:3321 [inline] path_openat+0x1e98/0x46e0 fs/namei.c:3533 do_filp_open+0x1a1/0x280 fs/namei.c:3563 do_open_execat+0x137/0x690 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:1958 [inline] __se_sys_execve fs/exec.c:1953 [inline] __x64_sys_execve+0x8f/0xc0 fs/exec.c:1953 do_syscall_64+0x103/0x670 arch/x86/entry/common.c:298 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458c29 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:00007f5db8befc78 EFLAGS: 00000246 ORIG_RAX: 000000000000003b RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458c29 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000 RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5db8bf06d4 R13: 00000000004bf216 R14: 00000000004d0458 R15: 00000000ffffffff
syzbot has found a reproducer for the following crash on: HEAD commit: 6d906f99 Merge tag 'arm64-fixes' of git://git.kernel.org/p.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=10917b8f200000 kernel config: https://syzkaller.appspot.com/x/.config?x=856fc6d0fbbeede9 dashboard link: https://syzkaller.appspot.com/bug?extid=a55ccfc8a853d3cff213 compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=101767b7200000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13c15013200000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+a55ccfc8a853d3cff213@syzkaller.appspotmail.com overlayfs: workdir and upperdir must reside under the same mount ====================================================== WARNING: possible circular locking dependency detected 5.1.0-rc5+ #74 Not tainted ------------------------------------------------------ syz-executor949/9348 is trying to acquire lock: 000000005d993096 (&ovl_i_mutex_dir_key[depth]#2){++++}, at: inode_lock_shared include/linux/fs.h:782 [inline] 000000005d993096 (&ovl_i_mutex_dir_key[depth]#2){++++}, at: do_last fs/namei.c:3321 [inline] 000000005d993096 (&ovl_i_mutex_dir_key[depth]#2){++++}, at: path_openat+0x1e98/0x46e0 fs/namei.c:3533 but task is already holding lock: 00000000ef248b1d (&sig->cred_guard_mutex){+.+.}, at: prepare_bprm_creds fs/exec.c:1407 [inline] 00000000ef248b1d (&sig->cred_guard_mutex){+.+.}, at: __do_execve_file.isra.0+0x376/0x23f0 fs/exec.c:1750 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #4 (&sig->cred_guard_mutex){+.+.}: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4211 __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:2740 proc_tgid_io_accounting+0x23/0x30 fs/proc/base.c:2789 proc_single_show+0xf6/0x170 fs/proc/base.c:744 seq_read+0x4db/0x1130 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+0x4a9/0x660 fs/read_write.c:922 vfs_readv+0xf0/0x160 fs/read_write.c:984 kernel_readv fs/splice.c:358 [inline] default_file_splice_read+0x475/0x890 fs/splice.c:413 do_splice_to+0x12a/0x190 fs/splice.c:876 splice_direct_to_actor+0x2d2/0x970 fs/splice.c:953 do_splice_direct+0x1da/0x2a0 fs/splice.c:1062 do_sendfile+0x597/0xd00 fs/read_write.c:1443 __do_sys_sendfile64 fs/read_write.c:1504 [inline] __se_sys_sendfile64 fs/read_write.c:1490 [inline] __x64_sys_sendfile64+0x1dd/0x220 fs/read_write.c:1490 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #3 (&p->lock){+.+.}: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4211 __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+0x1fe/0x2c0 fs/proc/inode.c:227 do_loop_readv_writev fs/read_write.c:701 [inline] do_loop_readv_writev fs/read_write.c:688 [inline] do_iter_read+0x4a9/0x660 fs/read_write.c:922 vfs_readv+0xf0/0x160 fs/read_write.c:984 kernel_readv fs/splice.c:358 [inline] default_file_splice_read+0x475/0x890 fs/splice.c:413 do_splice_to+0x12a/0x190 fs/splice.c:876 do_splice+0x110b/0x1420 fs/splice.c:1183 __do_sys_splice fs/splice.c:1424 [inline] __se_sys_splice fs/splice.c:1404 [inline] __x64_sys_splice+0x2c6/0x330 fs/splice.c:1404 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #2 (&pipe->mutex/1){+.+.}: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4211 __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_nested fs/pipe.c:62 [inline] pipe_lock+0x6e/0x80 fs/pipe.c:70 iter_file_splice_write+0x18b/0xbe0 fs/splice.c:696 do_splice_from fs/splice.c:847 [inline] do_splice+0x70a/0x1420 fs/splice.c:1154 __do_sys_splice fs/splice.c:1424 [inline] __se_sys_splice fs/splice.c:1404 [inline] __x64_sys_splice+0x2c6/0x330 fs/splice.c:1404 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #1 (sb_writers#6){.+.+}: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4211 percpu_down_read include/linux/percpu-rwsem.h:36 [inline] __sb_start_write+0x20b/0x360 fs/super.c:1613 sb_start_write include/linux/fs.h:1621 [inline] mnt_want_write+0x3f/0xc0 fs/namespace.c:358 ovl_want_write+0x76/0xa0 fs/overlayfs/util.c:24 ovl_do_remove+0xe9/0xd70 fs/overlayfs/dir.c:840 ovl_rmdir+0x1b/0x20 fs/overlayfs/dir.c:890 vfs_rmdir fs/namei.c:3878 [inline] vfs_rmdir+0x19c/0x470 fs/namei.c:3857 do_rmdir+0x39e/0x420 fs/namei.c:3939 __do_sys_rmdir fs/namei.c:3957 [inline] __se_sys_rmdir fs/namei.c:3955 [inline] __x64_sys_rmdir+0x36/0x40 fs/namei.c:3955 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #0 (&ovl_i_mutex_dir_key[depth]#2){++++}: check_prevs_add kernel/locking/lockdep.c:2333 [inline] validate_chain kernel/locking/lockdep.c:2714 [inline] __lock_acquire+0x239c/0x3fb0 kernel/locking/lockdep.c:3701 lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4211 down_read+0x3b/0x90 kernel/locking/rwsem.c:24 inode_lock_shared include/linux/fs.h:782 [inline] do_last fs/namei.c:3321 [inline] path_openat+0x1e98/0x46e0 fs/namei.c:3533 do_filp_open+0x1a1/0x280 fs/namei.c:3563 do_open_execat+0x137/0x690 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:1958 [inline] __se_sys_execve fs/exec.c:1953 [inline] __x64_sys_execve+0x8f/0xc0 fs/exec.c:1953 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: &ovl_i_mutex_dir_key[depth]#2 --> &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]#2); *** DEADLOCK *** 1 lock held by syz-executor949/9348: #0: 00000000ef248b1d (&sig->cred_guard_mutex){+.+.}, at: prepare_bprm_creds fs/exec.c:1407 [inline] #0: 00000000ef248b1d (&sig->cred_guard_mutex){+.+.}, at: __do_execve_file.isra.0+0x376/0x23f0 fs/exec.c:1750 stack backtrace: CPU: 1 PID: 9348 Comm: syz-executor949 Not tainted 5.1.0-rc5+ #74 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:1571 check_prev_add.constprop.0+0xf11/0x23c0 kernel/locking/lockdep.c:2220 check_prevs_add kernel/locking/lockdep.c:2333 [inline] validate_chain kernel/locking/lockdep.c:2714 [inline] __lock_acquire+0x239c/0x3fb0 kernel/locking/lockdep.c:3701 lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4211 down_read+0x3b/0x90 kernel/locking/rwsem.c:24 inode_lock_shared include/linux/fs.h:782 [inline] do_last fs/namei.c:3321 [inline] path_openat+0x1e98/0x46e0 fs/namei.c:3533 do_filp_open+0x1a1/0x280 fs/namei.c:3563 do_open_execat+0x137/0x690 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:1958 [inline] __se_sys_execve fs/exec.c:1953 [inline] __x64_sys_execve+0x8f/0xc0 fs/exec.c:1953 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x447169 Code: e8 4c bb 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 bb 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fe4c6a6bdb8 EFLAGS: 00000246 ORIG_RAX: 000000000000003b RAX: ffffffffffffffda RBX: 00000000006dcc68 RCX: 0000000000447169 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000 RBP: 00000000006dcc60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc6c R13: 00007ffd5a5cb62f R14: 00007fe4c6a6c9c0 R15: 0000000000000000
syzbot has bisected this bug to: commit 8e54cadab447dae779f80f79c87cbeaea9594f60 Author: Al Viro <viro@zeniv.linux.org.uk> Date: Sun Nov 27 01:05:42 2016 +0000 fix default_file_splice_read() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=108f4416e00000 start commit: 6d906f99 Merge tag 'arm64-fixes' of git://git.kernel.org/p.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=128f4416e00000 console output: https://syzkaller.appspot.com/x/log.txt?x=148f4416e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=856fc6d0fbbeede9 dashboard link: https://syzkaller.appspot.com/bug?extid=a55ccfc8a853d3cff213 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=101767b7200000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13c15013200000 Reported-by: syzbot+a55ccfc8a853d3cff213@syzkaller.appspotmail.com Fixes: 8e54cadab447 ("fix default_file_splice_read()") For information about bisection process see: https://goo.gl/tpsmEJ#bisection