EXT4-fs warning (device sda1): ext4_group_add:1644: No reserved GDT blocks, can't resize ttyprintk ttyprintk: tty_port_close_start: tty->count = 1 port count = 3 ====================================================== WARNING: possible circular locking dependency detected 4.19.91-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.1/9657 is trying to acquire lock: 00000000197cf7a6 (console_owner){-.-.}, at: console_trylock_spinning kernel/printk/printk.c:1669 [inline] 00000000197cf7a6 (console_owner){-.-.}, at: vprintk_emit+0x3d5/0x6d0 kernel/printk/printk.c:1936 but task is already holding lock: 000000006b778a3f (&(&port->lock)->rlock){-.-.}, at: tty_port_close_start.part.0+0x2b/0x570 drivers/tty/tty_port.c:573 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&(&port->lock)->rlock){-.-.}: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:152 tty_port_tty_get+0x22/0x90 drivers/tty/tty_port.c:288 tty_port_default_wakeup+0x16/0x40 drivers/tty/tty_port.c:47 tty_port_tty_wakeup+0x57/0x70 drivers/tty/tty_port.c:390 uart_write_wakeup+0x46/0x70 drivers/tty/serial/serial_core.c:103 serial8250_tx_chars+0x495/0xaf0 drivers/tty/serial/8250/8250_port.c:1806 serial8250_handle_irq.part.0+0x261/0x2b0 drivers/tty/serial/8250/8250_port.c:1879 serial8250_handle_irq drivers/tty/serial/8250/8250_port.c:1865 [inline] serial8250_default_handle_irq+0xc0/0x150 drivers/tty/serial/8250/8250_port.c:1895 serial8250_interrupt+0xfc/0x1e0 drivers/tty/serial/8250/8250_core.c:125 __handle_irq_event_percpu+0x144/0x8f0 kernel/irq/handle.c:149 handle_irq_event_percpu+0x74/0x160 kernel/irq/handle.c:189 handle_irq_event+0xa7/0x134 kernel/irq/handle.c:206 handle_edge_irq+0x25e/0x8d0 kernel/irq/chip.c:797 generic_handle_irq_desc include/linux/irqdesc.h:155 [inline] handle_irq+0x39/0x50 arch/x86/kernel/irq_64.c:87 do_IRQ+0x99/0x1d0 arch/x86/kernel/irq.c:246 ret_from_intr+0x0/0x1e arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] _raw_spin_unlock_irqrestore+0x95/0xe0 kernel/locking/spinlock.c:184 spin_unlock_irqrestore include/linux/spinlock.h:384 [inline] uart_write+0x3a9/0x6e0 drivers/tty/serial/serial_core.c:612 process_output_block drivers/tty/n_tty.c:593 [inline] n_tty_write+0x3f9/0x1140 drivers/tty/n_tty.c:2331 do_tty_write drivers/tty/tty_io.c:960 [inline] tty_write+0x458/0x7a0 drivers/tty/tty_io.c:1044 redirected_tty_write+0xb2/0xc0 drivers/tty/tty_io.c:1065 __vfs_write+0x114/0x810 fs/read_write.c:485 vfs_write+0x20c/0x560 fs/read_write.c:549 ksys_write+0x14f/0x2d0 fs/read_write.c:599 __do_sys_write fs/read_write.c:611 [inline] __se_sys_write fs/read_write.c:608 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:608 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #1 (&port_lock_key){-.-.}: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:152 serial8250_console_write+0x7ca/0x9f0 drivers/tty/serial/8250/8250_port.c:3247 univ8250_console_write+0x5f/0x70 drivers/tty/serial/8250/8250_core.c:590 call_console_drivers kernel/printk/printk.c:1736 [inline] console_unlock+0xbdf/0x10d0 kernel/printk/printk.c:2429 vprintk_emit+0x280/0x6d0 kernel/printk/printk.c:1937 vprintk_default+0x28/0x30 kernel/printk/printk.c:1979 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398 printk+0xba/0xed kernel/printk/printk.c:2012 register_console+0x77f/0xb90 kernel/printk/printk.c:2745 univ8250_console_init+0x3e/0x4b drivers/tty/serial/8250/8250_core.c:685 console_init+0x4f7/0x761 kernel/printk/printk.c:2831 start_kernel+0x59c/0x8c5 init/main.c:660 x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:490 x86_64_start_kernel+0x77/0x7b arch/x86/kernel/head64.c:471 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 -> #0 (console_owner){-.-.}: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3903 console_trylock_spinning kernel/printk/printk.c:1690 [inline] vprintk_emit+0x412/0x6d0 kernel/printk/printk.c:1936 vprintk_default+0x28/0x30 kernel/printk/printk.c:1979 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398 printk+0xba/0xed kernel/printk/printk.c:2012 tty_port_close_start.part.0+0x51a/0x570 drivers/tty/tty_port.c:575 tty_port_close_start drivers/tty/tty_port.c:647 [inline] tty_port_close+0x4e/0xf0 drivers/tty/tty_port.c:640 tpk_close+0x83/0x95 drivers/char/ttyprintk.c:109 tty_release+0x3ba/0xe90 drivers/tty/tty_io.c:1678 __fput+0x2dd/0x8b0 fs/file_table.c:278 ____fput+0x16/0x20 fs/file_table.c:309 task_work_run+0x145/0x1c0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x273/0x2c0 arch/x86/entry/common.c:167 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x53d/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe other info that might help us debug this: Chain exists of: console_owner --> &port_lock_key --> &(&port->lock)->rlock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&(&port->lock)->rlock); lock(&port_lock_key); lock(&(&port->lock)->rlock); lock(console_owner); *** DEADLOCK *** 2 locks held by syz-executor.1/9657: #0: 000000002815bbf9 (&tty->legacy_mutex){+.+.}, at: tty_lock+0x73/0xb0 drivers/tty/tty_mutex.c:19 #1: 000000006b778a3f (&(&port->lock)->rlock){-.-.}, at: tty_port_close_start.part.0+0x2b/0x570 drivers/tty/tty_port.c:573 stack backtrace: CPU: 1 PID: 9657 Comm: syz-executor.1 Not tainted 4.19.91-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 print_circular_bug.isra.0.cold+0x1cc/0x28f kernel/locking/lockdep.c:1221 check_prev_add kernel/locking/lockdep.c:1861 [inline] check_prevs_add kernel/locking/lockdep.c:1974 [inline] validate_chain kernel/locking/lockdep.c:2415 [inline] __lock_acquire+0x2e19/0x49c0 kernel/locking/lockdep.c:3411 lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3903 console_trylock_spinning kernel/printk/printk.c:1690 [inline] vprintk_emit+0x412/0x6d0 kernel/printk/printk.c:1936 vprintk_default+0x28/0x30 kernel/printk/printk.c:1979 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398 printk+0xba/0xed kernel/printk/printk.c:2012 tty_port_close_start.part.0+0x51a/0x570 drivers/tty/tty_port.c:575 tty_port_close_start drivers/tty/tty_port.c:647 [inline] tty_port_close+0x4e/0xf0 drivers/tty/tty_port.c:640 tpk_close+0x83/0x95 drivers/char/ttyprintk.c:109 tty_release+0x3ba/0xe90 drivers/tty/tty_io.c:1678 __fput+0x2dd/0x8b0 fs/file_table.c:278 ____fput+0x16/0x20 fs/file_table.c:309 task_work_run+0x145/0x1c0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x273/0x2c0 arch/x86/entry/common.c:167 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x53d/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4144b1 Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 1b 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007fff85f90500 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00000000004144b1 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000760120 R09: ffffffffffffffff R10: 00007fff85f905d0 R11: 0000000000000293 R12: 000000000075bf20 R13: 0000000000000003 R14: 0000000000760128 R15: 000000000075bf2c kobject: 'loop2' (00000000ab4a12f3): kobject_uevent_env xt_check_target: 49 callbacks suppressed x_tables: ip_tables: TCPMSS target: only valid for protocol 6 kobject: 'loop2' (00000000ab4a12f3): fill_kobj_path: path = '/devices/virtual/block/loop2' x_tables: ip_tables: TCPMSS target: only valid for protocol 6 EXT4-fs warning (device sda1): ext4_group_add:1644: No reserved GDT blocks, can't resize kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' EXT4-fs warning (device sda1): ext4_group_add:1644: No reserved GDT blocks, can't resize kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' x_tables: ip_tables: TCPMSS target: only valid for protocol 6 kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' x_tables: ip_tables: TCPMSS target: only valid for protocol 6 kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' x_tables: ip_tables: TCPMSS target: only valid for protocol 6 kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (00000000ab4a12f3): kobject_uevent_env kobject: 'loop2' (00000000ab4a12f3): fill_kobj_path: path = '/devices/virtual/block/loop2' EXT4-fs warning (device sda1): ext4_group_add:1644: No reserved GDT blocks, can't resize kobject: 'loop2' (00000000ab4a12f3): kobject_uevent_env x_tables: ip_tables: TCPMSS target: only valid for protocol 6 kobject: 'loop2' (00000000ab4a12f3): fill_kobj_path: path = '/devices/virtual/block/loop2' x_tables: ip_tables: TCPMSS target: only valid for protocol 6 x_tables: ip_tables: TCPMSS target: only valid for protocol 6 kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000991be8b8): kobject_uevent_env x_tables: ip_tables: TCPMSS target: only valid for protocol 6 kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' x_tables: ip_tables: TCPMSS target: only valid for protocol 6 kobject: 'loop2' (00000000ab4a12f3): kobject_uevent_env kobject: 'loop2' (00000000ab4a12f3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (00000000ab4a12f3): kobject_uevent_env kobject: 'loop2' (00000000ab4a12f3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (00000000ab4a12f3): kobject_uevent_env kobject: 'loop2' (00000000ab4a12f3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop2' (00000000ab4a12f3): kobject_uevent_env kobject: 'loop2' (00000000ab4a12f3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' net_ratelimit: 24 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (00000000ab4a12f3): kobject_uevent_env kobject: 'loop2' (00000000ab4a12f3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'pim6reg' (00000000aca4dab5): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' protocol 88fb is buggy, dev hsr_slave_0 kobject: 'pim6reg' (00000000aca4dab5): kobject_uevent_env kobject: 'pim6reg' (00000000aca4dab5): fill_kobj_path: path = '/devices/virtual/net/pim6reg' kobject: 'queues' (000000007bfe6348): kobject_add_internal: parent: 'pim6reg', set: '' kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'queues' (000000007bfe6348): kobject_uevent_env kobject: 'queues' (000000007bfe6348): kobject_uevent_env: filter function caused the event to drop! EXT4-fs warning: 12 callbacks suppressed EXT4-fs warning (device sda1): ext4_group_add:1644: No reserved GDT blocks, can't resize kobject: 'rx-0' (000000001ff4db34): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (000000001ff4db34): kobject_uevent_env kobject: 'rx-0' (000000001ff4db34): fill_kobj_path: path = '/devices/virtual/net/pim6reg/queues/rx-0' [U]  kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'tx-0' (0000000065c52701): kobject_add_internal: parent: 'queues', set: 'queues' EXT4-fs warning (device sda1): ext4_group_add:1644: No reserved GDT blocks, can't resize kobject: 'tx-0' (0000000065c52701): kobject_uevent_env kobject: 'tx-0' (0000000065c52701): fill_kobj_path: path = '/devices/virtual/net/pim6reg/queues/tx-0' kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' EXT4-fs warning (device sda1): ext4_group_add:1644: No reserved GDT blocks, can't resize kobject: 'loop2' (00000000ab4a12f3): kobject_uevent_env kobject: 'loop2' (00000000ab4a12f3): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000d5545898): kobject_uevent_env [U]  kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' [U]  kobject: 'loop0' (00000000991be8b8): kobject_uevent_env EXT4-fs warning (device sda1): ext4_group_add:1644: No reserved GDT blocks, can't resize kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' EXT4-fs warning (device sda1): ext4_group_add:1644: No reserved GDT blocks, can't resize kobject: 'loop2' (00000000ab4a12f3): kobject_uevent_env kobject: 'loop2' (00000000ab4a12f3): fill_kobj_path: path = '/devices/virtual/block/loop2' [U]  kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'pim6reg' (000000000e2b3f06): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' EXT4-fs warning (device sda1): ext4_group_add:1644: No reserved GDT blocks, can't resize kobject: 'pim6reg' (000000000e2b3f06): kobject_uevent_env kobject: 'pim6reg' (000000000e2b3f06): fill_kobj_path: path = '/devices/virtual/net/pim6reg' kobject: 'queues' (000000008eedae05): kobject_add_internal: parent: 'pim6reg', set: '' kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'queues' (000000008eedae05): kobject_uevent_env kobject: 'queues' (000000008eedae05): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' [U]  kobject: 'rx-0' (00000000b61d84f1): kobject_add_internal: parent: 'queues', set: 'queues' EXT4-fs warning (device sda1): ext4_group_add:1644: No reserved GDT blocks, can't resize kobject: 'rx-0' (00000000b61d84f1): kobject_uevent_env kobject: 'rx-0' (00000000b61d84f1): fill_kobj_path: path = '/devices/virtual/net/pim6reg/queues/rx-0' kobject: 'loop3' (00000000d5545898): kobject_uevent_env [U]  kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'tx-0' (000000006bd14d4a): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (000000006bd14d4a): kobject_uevent_env kobject: 'tx-0' (000000006bd14d4a): fill_kobj_path: path = '/devices/virtual/net/pim6reg/queues/tx-0' EXT4-fs warning (device sda1): ext4_group_add:1644: No reserved GDT blocks, can't resize kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' EXT4-fs warning (device sda1): ext4_group_add:1644: No reserved GDT blocks, can't resize kobject: 'loop0' (00000000991be8b8): kobject_uevent_env [U]  kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000991be8b8): kobject_uevent_env EXT4-fs warning (device sda1): ext4_group_add:1644: No reserved GDT blocks, can't resize kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000d5545898): kobject_uevent_env [U]  kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' [U]  kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' [U]  kobject: 'loop0' (00000000991be8b8): kobject_uevent_env xt_check_target: 69 callbacks suppressed x_tables: ip_tables: TCPMSS target: only valid for protocol 6 kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' x_tables: ip_tables: TCPMSS target: only valid for protocol 6 x_tables: ip_tables: TCPMSS target: only valid for protocol 6 x_tables: ip_tables: TCPMSS target: only valid for protocol 6 kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' x_tables: ip_tables: TCPMSS target: only valid for protocol 6 kobject: 'loop3' (00000000d5545898): kobject_uevent_env x_tables: ip_tables: TCPMSS target: only valid for protocol 6 kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' x_tables: ip_tables: TCPMSS target: only valid for protocol 6 kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' x_tables: ip_tables: TCPMSS target: only valid for protocol 6 kobject: 'loop3' (00000000d5545898): kobject_uevent_env x_tables: ip_tables: TCPMSS target: only valid for protocol 6 kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' [U]  kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' x_tables: ip_tables: TCPMSS target: only valid for protocol 6 kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' caif:caif_disconnect_client(): nothing to disconnect kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' caif:caif_disconnect_client(): nothing to disconnect kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' [U]  kobject: 'loop3' (00000000d5545898): kobject_uevent_env base_sock_release(00000000b48aaab4) sk=000000008a2092ba kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000991be8b8): kobject_uevent_env base_sock_release(000000002aba8ec0) sk=00000000c8f5e8f5 kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'nr0' (00000000938d733b): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'nr0' (00000000938d733b): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'nr0' (00000000938d733b): fill_kobj_path: path = '/devices/virtual/net/nr0' kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'queues' (00000000f685d887): kobject_add_internal: parent: 'nr0', set: '' kobject: 'queues' (00000000f685d887): kobject_uevent_env kobject: 'queues' (00000000f685d887): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (00000000d3558b50): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (00000000d3558b50): kobject_uevent_env kobject: 'rx-0' (00000000d3558b50): fill_kobj_path: path = '/devices/virtual/net/nr0/queues/rx-0' kobject: 'tx-0' (00000000cecb1793): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (00000000cecb1793): kobject_uevent_env kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'tx-0' (00000000cecb1793): fill_kobj_path: path = '/devices/virtual/net/nr0/queues/tx-0' kobject: 'batman_adv' (000000007eb554ba): kobject_add_internal: parent: 'nr0', set: '' kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'batman_adv' (000000007eb554ba): kobject_uevent_env kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'batman_adv' (000000007eb554ba): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'batman_adv' (000000007eb554ba): kobject_cleanup, parent (null) kobject: 'batman_adv' (000000007eb554ba): calling ktype release kobject: (000000007eb554ba): dynamic_kobj_release kobject: 'batman_adv': free name kobject: 'rx-0' (00000000d3558b50): kobject_cleanup, parent 00000000f685d887 kobject: 'rx-0' (00000000d3558b50): auto cleanup 'remove' event kobject: 'rx-0' (00000000d3558b50): kobject_uevent_env kobject: 'rx-0' (00000000d3558b50): fill_kobj_path: path = '/devices/virtual/net/nr0/queues/rx-0' kobject: 'rx-0' (00000000d3558b50): auto cleanup kobject_del kobject: 'rx-0' (00000000d3558b50): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (00000000cecb1793): kobject_cleanup, parent 00000000f685d887 kobject: 'tx-0' (00000000cecb1793): auto cleanup 'remove' event kobject: 'tx-0' (00000000cecb1793): kobject_uevent_env kobject: 'tx-0' (00000000cecb1793): fill_kobj_path: path = '/devices/virtual/net/nr0/queues/tx-0' kobject: 'tx-0' (00000000cecb1793): auto cleanup kobject_del kobject: 'tx-0' (00000000cecb1793): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (00000000f685d887): kobject_cleanup, parent (null) kobject: 'queues' (00000000f685d887): calling ktype release kobject: 'queues' (00000000f685d887): kset_release kobject: 'queues': free name kobject: 'nr0' (00000000938d733b): kobject_uevent_env kobject: 'nr0' (00000000938d733b): fill_kobj_path: path = '/devices/virtual/net/nr0' kobject: 'nr0' (00000000938d733b): kobject_cleanup, parent (null) kobject: 'nr0' (00000000938d733b): calling ktype release kobject: 'nr0': free name EXT4-fs warning: 21 callbacks suppressed EXT4-fs warning (device sda1): ext4_group_add:1644: No reserved GDT blocks, can't resize net_ratelimit: 22 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' EXT4-fs warning (device sda1): ext4_group_add:1644: No reserved GDT blocks, can't resize kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' EXT4-fs warning (device sda1): ext4_group_add:1644: No reserved GDT blocks, can't resize kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' EXT4-fs warning (device sda1): ext4_group_add:1644: No reserved GDT blocks, can't resize kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' EXT4-fs warning (device sda1): ext4_group_add:1644: No reserved GDT blocks, can't resize kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000d5545898): kobject_uevent_env kobject: 'loop3' (00000000d5545898): fill_kobj_path: path = '/devices/virtual/block/loop3' EXT4-fs warning (device sda1): ext4_group_add:1644: No reserved GDT blocks, can't resize kobject: 'loop0' (00000000991be8b8): kobject_uevent_env kobject: 'loop0' (00000000991be8b8): fill_kobj_path: path = '/devices/virtual/block/loop0' [U]