SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=2292 comm=syz-executor.3
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=2292 comm=syz-executor.3
BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 253s!
BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 202s!
BUG: workqueue lockup - pool cpus=0-1 flags=0x5 nice=0 stuck for 229s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=8/256 refcnt=9
    in-flight: 3387:cache_reap
    pending: defense_work_handler, defense_work_handler, defense_work_handler, defense_work_handler, defense_work_handler, check_corruption, macvlan_process_broadcast

======================================================
WARNING: possible circular locking dependency detected
4.19.102-syzkaller #0 Not tainted
------------------------------------------------------
bond119/17086 is trying to acquire lock:
00000000747b6a34 (console_owner){-.-.}, at: log_next kernel/printk/printk.c:499 [inline]
00000000747b6a34 (console_owner){-.-.}, at: console_unlock+0x432/0x10d0 kernel/printk/printk.c:2416

but task is already holding lock:
0000000082936487 (&(&pool->lock)->rlock){-.-.}, at: show_workqueue_state.cold+0x879/0x1213 kernel/workqueue.c:4582

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #4 (&(&pool->lock)->rlock){-.-.}:
       __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
       _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144
       spin_lock include/linux/spinlock.h:329 [inline]
       __queue_work+0x23d/0x10a0 kernel/workqueue.c:1417
       queue_work_on+0x192/0x200 kernel/workqueue.c:1486
       queue_work include/linux/workqueue.h:512 [inline]
       schedule_work include/linux/workqueue.h:570 [inline]
       put_pwq kernel/workqueue.c:1090 [inline]
       put_pwq+0x171/0x1c0 kernel/workqueue.c:1075
       put_pwq_unlocked.part.0+0x34/0x70 kernel/workqueue.c:1107
       put_pwq_unlocked kernel/workqueue.c:1101 [inline]
       destroy_workqueue+0x611/0x700 kernel/workqueue.c:4241
       do_floppy_init drivers/block/floppy.c:4734 [inline]
       floppy_async_init+0x2026/0x2165 drivers/block/floppy.c:4751
       async_run_entry_fn+0x124/0x570 kernel/async.c:127
       process_one_work+0x989/0x1750 kernel/workqueue.c:2153
       worker_thread+0x98/0xe40 kernel/workqueue.c:2296
       kthread+0x354/0x420 kernel/kthread.c:246
       ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415

-> #3 (&pool->lock/1){..-.}:
       __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
       _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144
       spin_lock include/linux/spinlock.h:329 [inline]
       __queue_work+0x23d/0x10a0 kernel/workqueue.c:1417
       queue_work_on+0x192/0x200 kernel/workqueue.c:1486
       queue_work include/linux/workqueue.h:512 [inline]
       tty_schedule_flip drivers/tty/tty_buffer.c:408 [inline]
       tty_flip_buffer_push+0xc5/0x100 drivers/tty/tty_buffer.c:551
       pty_write+0x1a6/0x200 drivers/tty/pty.c:125
       n_tty_write+0xafa/0x1140 drivers/tty/n_tty.c:2354
       do_tty_write drivers/tty/tty_io.c:960 [inline]
       tty_write+0x458/0x7a0 drivers/tty/tty_io.c:1044
       __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

-> #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/0x825 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_lock_spinning_enable kernel/printk/printk.c:1599 [inline]
       console_unlock+0x49c/0x10d0 kernel/printk/printk.c:2426
       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
       show_pwq kernel/workqueue.c:4488 [inline]
       show_workqueue_state.cold+0xa05/0x1213 kernel/workqueue.c:4584
       wq_watchdog_timer_fn+0x516/0x5a0 kernel/workqueue.c:5596
       call_timer_fn+0x18d/0x720 kernel/time/timer.c:1326
       expire_timers kernel/time/timer.c:1363 [inline]
       __run_timers kernel/time/timer.c:1684 [inline]
       __run_timers kernel/time/timer.c:1652 [inline]
       run_timer_softirq+0xd00/0x16a0 kernel/time/timer.c:1699
       __do_softirq+0x25c/0x921 kernel/softirq.c:292
       invoke_softirq kernel/softirq.c:372 [inline]
       irq_exit+0x180/0x1d0 kernel/softirq.c:412
       exiting_irq arch/x86/include/asm/apic.h:536 [inline]
       smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1094
       apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893
       arch_local_irq_enable arch/x86/include/asm/paravirt.h:799 [inline]
       __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline]
       _raw_spin_unlock_irq+0x54/0x90 kernel/locking/spinlock.c:192
       spin_unlock_irq include/linux/spinlock.h:379 [inline]
       process_one_work+0x890/0x1750 kernel/workqueue.c:2126
       process_scheduled_works kernel/workqueue.c:2212 [inline]
       rescuer_thread+0x7b5/0xc80 kernel/workqueue.c:2403
       kthread+0x354/0x420 kernel/kthread.c:246
       ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415

other info that might help us debug this:

Chain exists of:
  console_owner --> &pool->lock/1 --> &(&pool->lock)->rlock

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&(&pool->lock)->rlock);
                               lock(&pool->lock/1);
                               lock(&(&pool->lock)->rlock);
  lock(console_owner);

 *** DEADLOCK ***

4 locks held by bond119/17086:
 #0: 00000000852e1364 ((&wq_watchdog_timer)){+.-.}, at: lockdep_copy_map include/linux/lockdep.h:168 [inline]
 #0: 00000000852e1364 ((&wq_watchdog_timer)){+.-.}, at: call_timer_fn+0xda/0x720 kernel/time/timer.c:1316
 #1: 00000000ccb08709 (rcu_read_lock_sched){....}, at: show_workqueue_state+0x0/0x120 kernel/workqueue.c:4453
 #2: 0000000082936487 (&(&pool->lock)->rlock){-.-.}, at: show_workqueue_state.cold+0x879/0x1213 kernel/workqueue.c:4582
 #3: 000000003a06cb9c (console_lock){+.+.}, at: console_trylock_spinning kernel/printk/printk.c:1661 [inline]
 #3: 000000003a06cb9c (console_lock){+.+.}, at: vprintk_emit+0x267/0x6d0 kernel/printk/printk.c:1936

stack backtrace:
CPU: 0 PID: 17086 Comm: bond119 Not tainted 4.19.102-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bond119 bond_alb_monitor
Call Trace:
 <IRQ>
 __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_lock_spinning_enable kernel/printk/printk.c:1599 [inline]
 console_unlock+0x49c/0x10d0 kernel/printk/printk.c:2426
 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
 show_pwq kernel/workqueue.c:4488 [inline]
 show_workqueue_state.cold+0xa05/0x1213 kernel/workqueue.c:4584
 wq_watchdog_timer_fn+0x516/0x5a0 kernel/workqueue.c:5596
 call_timer_fn+0x18d/0x720 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers kernel/time/timer.c:1684 [inline]
 __run_timers kernel/time/timer.c:1652 [inline]
 run_timer_softirq+0xd00/0x16a0 kernel/time/timer.c:1699
 __do_softirq+0x25c/0x921 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x180/0x1d0 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1094
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893
 </IRQ>
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x54/0x90 kernel/locking/spinlock.c:192
Code: c0 58 57 f2 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 33 48 83 3d 7d 51 9d 01 00 74 20 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 32 c9 f3 f9 65 8b 05 db e7 ac 78 85 c0 74 06 41
RSP: 0018:ffff88804542fc98 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff11e4aeb RBX: 0000000000000100 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff88805375eabc
RBP: ffff88804542fca0 R08: ffff88805375e240 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88812c30a940
R13: 0000000000000100 R14: ffff8880a5222300 R15: ffff88812c30a940
 spin_unlock_irq include/linux/spinlock.h:379 [inline]
 process_one_work+0x890/0x1750 kernel/workqueue.c:2126
 process_scheduled_works kernel/workqueue.c:2212 [inline]
 rescuer_thread+0x7b5/0xc80 kernel/workqueue.c:2403
 kthread+0x354/0x420 kernel/kthread.c:246
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=6/256 refcnt=7
    in-flight: 15417:free_ioctx
    pending: defense_work_handler, defense_work_handler, vmstat_shepherd, cache_reap, vmpressure_work_fn
workqueue events_long: flags=0x0
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3
    pending: br_fdb_cleanup, br_fdb_cleanup
workqueue events_unbound: flags=0x2
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=2292 comm=syz-executor.3
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/512 refcnt=4
    in-flight: 28276:call_usermodehelper_exec_work
workqueue events_power_efficient: flags=0x80
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4
    pending: fb_flashcursor, check_lifetime, do_cache_clean
workqueue mm_percpu_wq: flags=0x8
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
INFO: task syz-executor.3:2285 blocked for more than 140 seconds.
    pending: vmstat_update
workqueue dm_bufio_cache: flags=0x8
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: work_fn
workqueue ipv6_addrconf: flags=0x40008
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2
    pending: addrconf_verify_work
workqueue krxrpcd: flags=0x0
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=5
    pending: rxrpc_peer_keepalive_worker
      Not tainted 4.19.102-syzkaller #0
    delayed: rxrpc_peer_keepalive_worker, rxrpc_peer_keepalive_worker, rxrpc_peer_keepalive_worker
workqueue bond119: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=6
    in-flight: 17086(RESCUER):bond_alb_monitor
    delayed: bond_mii_monitor
workqueue bond80: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=4
    pending: bond_alb_monitor
workqueue bond82: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=4
    pending: bond_mii_monitor
workqueue bond83: flags=0xa000a
workqueue bond126: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=4
    pending: bond_mii_monitor
workqueue bond128: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond129: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=4
    pending: bond_alb_monitor
workqueue bond88: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond130: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=5
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond89: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=4
    pending: bond_alb_monitor
workqueue bond131: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond90: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond132: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond91: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=4
    pending: bond_mii_monitor
workqueue bond133: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=4
    pending: bond_alb_monitor
workqueue bond92: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond7: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond134: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond93: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond8: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond9: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond10: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond135: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond11: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond136: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond94: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond137: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_alb_monitor
    delayed: bond_mii_monitor
workqueue bond95: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond138: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond96: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond139: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond97: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond140: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond98: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond141: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=4
    pending: bond_alb_monitor
workqueue bond100: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond142: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond101: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond102: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond144: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond103: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond145: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond104: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond146: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond105: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond147: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond106: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond148: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond107: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond108: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond150: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond109: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond151: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond110: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond152: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond153: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond112: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond154: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond113: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond155: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond114: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond115: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond157: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond116: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond158: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=4
    pending: bond_mii_monitor
workqueue bond117: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond159: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond118: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond160: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond119: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond120: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond162: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond163: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond124: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond168: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond128: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond170: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond129: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond171: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_alb_monitor
    delayed: bond_mii_monitor
workqueue bond130: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_alb_monitor
    delayed: bond_mii_monitor
workqueue bond172: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond173: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_alb_monitor
    delayed: bond_mii_monitor
workqueue bond174: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond132: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_alb_monitor
    delayed: bond_mii_monitor
workqueue bond175: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_alb_monitor
    delayed: bond_mii_monitor
workqueue bond133: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond176: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond134: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5
    pending: bond_alb_monitor
    delayed: bond_mii_monitor
workqueue bond177: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond135: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond178: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond136: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond179: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_alb_monitor
    delayed: bond_mii_monitor
workqueue bond180: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond138: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond181: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond139: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5
    pending: bond_alb_monitor
    delayed: bond_mii_monitor
workqueue bond182: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_alb_monitor
    delayed: bond_mii_monitor
workqueue bond140: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond183: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond141: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond142: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_alb_monitor
    delayed: bond_mii_monitor
workqueue bond185: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond186: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond187: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_alb_monitor
    delayed: bond_mii_monitor
workqueue bond144: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond188: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond145: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_alb_monitor
    delayed: bond_mii_monitor
workqueue bond189: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_alb_monitor
    delayed: bond_mii_monitor
workqueue bond191: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond148: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond192: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_alb_monitor
    delayed: bond_mii_monitor
workqueue bond149: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond12: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5
    pending: bond_alb_monitor
    delayed: bond_mii_monitor
workqueue bond150: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_alb_monitor
    delayed: bond_mii_monitor
workqueue bond193: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond194: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond152: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond196: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond153: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond197: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_alb_monitor
    delayed: bond_mii_monitor
workqueue bond198: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond199: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_alb_monitor
    delayed: bond_mii_monitor
workqueue bond156: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond200: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond157: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_alb_monitor
    delayed: bond_mii_monitor
workqueue bond201: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond202: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond160: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond162: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_alb_monitor
    delayed: bond_mii_monitor
workqueue bond163: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond164: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond165: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond167: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5
    pending: bond_alb_monitor
    delayed: bond_mii_monitor
workqueue bond169: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond170: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6
    in-flight: 20445(RESCUER):bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond173: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond174: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond176: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_alb_monitor
    delayed: bond_mii_monitor
workqueue bond179: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond183: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond184: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond186: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_alb_monitor
    delayed: bond_mii_monitor
workqueue bond190: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond191: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=6 MAYDAY
    pending: bond_alb_monitor
    delayed: bond_mii_monitor
workqueue bond192: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5
    pending: bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond195: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_alb_monitor
workqueue bond196: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond197: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond204: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=4
    pending: bond_mii_monitor
workqueue bond208: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    pending: bond_mii_monitor
workqueue bond210: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=4
    pending: bond_alb_monitor
workqueue bond211: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=4
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
    pending: bond_mii_monitor
workqueue bond213: flags=0xa000a
workqueue bond228: flags=0xa000a
workqueue bond215: flags=0xa000a
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=2292 comm=syz-executor.3
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5
    in-flight: 2357:bond_alb_monitor
    delayed: bond_mii_monitor
workqueue bond267: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5
    in-flight: 12259:bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond209: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5
    in-flight: 28147:bond_mii_monitor
    delayed: bond_alb_monitor
workqueue bond334: flags=0xa000a
syz-executor.3  D27672  2285   8208 0x00000004
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    in-flight: 356:bond_alb_monitor
workqueue bond549: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=4
    in-flight: 8610:bond_alb_monitor
audit: type=1804 audit(1581105443.167:2092): pid=2321 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir754987748/syzkaller.pwwDaD/4606/bus" dev="sda1" ino=17088 res=1
workqueue bond584: flags=0xa000a
  pwq 4: cpus=0-1 flags=0x5 nice=0 active=1/1 refcnt=5 MAYDAY
    in-flight: 8611:bond_alb_monitor
pool 0: cpus=0 node=0 flags=0x0 nice=0 hung=257s workers=3 idle: 1137 5
Call Trace:
pool 4: cpus=0-1 flags=0x5 nice=0 hung=0s workers=15 manager: 2319 idle: 8610 12259 8260 2357 356 28276 7 17151 2341 23 31568
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=2292 comm=syz-executor.3
 context_switch kernel/sched/core.c:2826 [inline]
 __schedule+0x866/0x1dc0 kernel/sched/core.c:3515
 schedule+0x92/0x1c0 kernel/sched/core.c:3559
audit: type=1804 audit(1581105443.277:2093): pid=2325 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir754987748/syzkaller.pwwDaD/4606/bus" dev="sda1" ino=17088 res=1
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=2292 comm=syz-executor.3
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3617
 __mutex_lock_common kernel/locking/mutex.c:1002 [inline]
 __mutex_lock+0x726/0x1300 kernel/locking/mutex.c:1072
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=2292 comm=syz-executor.3
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=2292 comm=syz-executor.3
ipt_CLUSTERIP: Please specify destination IP
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=2292 comm=syz-executor.3
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 PID: 1080 Comm: khungtaskd Not tainted 4.19.102-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
 nmi_cpu_backtrace.cold+0x63/0xa4 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x1b0/0x1f8 lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline]
 watchdog+0x9df/0xee0 kernel/hung_task.c:287
 kthread+0x354/0x420 kernel/kthread.c:246
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 32545 Comm: syz-executor.2 Not tainted 4.19.102-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:check_kcov_mode kernel/kcov.c:67 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x18/0x50 kernel/kcov.c:101
Code: e9 ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 48 89 e5 48 8b 75 08 65 48 8b 04 25 40 ee 01 00 65 8b 15 38 e2 96 7e <81> e2 00 01 1f 00 75 2b 8b 90 d0 12 00 00 83 fa 02 75 20 48 8b 88
RSP: 0000:ffff88806875f6f8 EFLAGS: 00000246
RAX: ffff88804c3be480 RBX: 00007fb40860c000 RCX: 0000000000000000
RDX: 0000000080000001 RSI: ffffffff819541f2 RDI: 0000000000000006
RBP: ffff88806875f6f8 R08: ffff88804c3be480 R09: fffff94000410d4f
R10: fffff94000410d4e R11: ffffea0002086a73 R12: dffffc0000000000
R13: 0000000000000001 R14: 80000000821aa007 R15: ffffea0002086a80
FS:  00007fb407561700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000082c037 CR3: 00000000886a9000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 zap_pte_range mm/memory.c:1323 [inline]
 zap_pmd_range mm/memory.c:1440 [inline]
 zap_pud_range mm/memory.c:1469 [inline]
 zap_p4d_range mm/memory.c:1490 [inline]
 unmap_page_range+0x9b2/0x1fb0 mm/memory.c:1511
 unmap_single_vma+0x19d/0x300 mm/memory.c:1556
 unmap_vmas+0xae/0x180 mm/memory.c:1586
 exit_mmap+0x2c2/0x530 mm/mmap.c:3091
 __mmput kernel/fork.c:1015 [inline]
 mmput+0x15f/0x4c0 kernel/fork.c:1036
 exit_mm kernel/exit.c:546 [inline]
 do_exit+0xb1e/0x30d0 kernel/exit.c:867
 do_group_exit+0x135/0x370 kernel/exit.c:983
 get_signal+0x3ec/0x1fc0 kernel/signal.c:2583
 do_signal+0x95/0x1960 arch/x86/kernel/signal.c:821
 exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:163
 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: 0033:0x45b399
Code: 42 08 48 89 04 24 48 8b 44 24 20 48 89 44 24 08 e8 2c 22 fb ff 48 8b 6c 24 10 48 83 c4 18 c3 e8 0d bf ff ff eb bb cc cc cc cc <cc> cc cc cc cc cc cc 48 8b 44 24 08 84 00 48 83 c0 10 48 89 44 24
RSP: 002b:00007fb407560cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 000000000075bf28 RCX: 000000000045b399
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000075bf28
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000075bf2c
R13: 00007ffdd83786bf R14: 00007fb4075619c0 R15: 000000000075bf2c