rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P5125/2:b..l P57/1:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=329861, q=368 ncpus=2)
task:kworker/u4:4    state:R  running task     stack:22784 pid:57    ppid:2      flags:0x00004000
Workqueue: bond762 bond_mii_monitor
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5381 [inline]
 __schedule+0xee1/0x59f0 kernel/sched/core.c:6710
 preempt_schedule_irq+0x52/0x90 kernel/sched/core.c:7022
 irqentry_exit+0x35/0x80 kernel/entry/common.c:433
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:write_comp_data+0x7/0x90 kernel/kcov.c:230
Code: 81 e2 00 01 ff 00 75 10 65 48 8b 04 25 80 b9 03 00 48 8b 80 f8 15 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 65 8b 05 41 43 7d 7e <49> 89 f1 89 c6 49 89 d2 81 e6 00 01 00 00 49 89 f8 65 48 8b 14 25
RSP: 0018:ffffc90001587bc8 EFLAGS: 00000246
RAX: 0000000080000000 RBX: 0000000000000001 RCX: ffffffff858f8218
RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88808e8440b1
R13: ffff88808aa40c80 R14: ffff88808aa40fe0 R15: 0000000000000000
 rcu_read_unlock include/linux/rcupdate.h:778 [inline]
 bond_mii_monitor+0xca8/0x2bd0 drivers/net/bonding/bond_main.c:2818
 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2597
 worker_thread+0x687/0x1110 kernel/workqueue.c:2748
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
task:kworker/u4:5    state:R  running task     stack:21904 pid:5125  ppid:2      flags:0x00004000
Workqueue: bond1028 bond_mii_monitor
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5381 [inline]
 __schedule+0xee1/0x59f0 kernel/sched/core.c:6710
 preempt_schedule_irq+0x52/0x90 kernel/sched/core.c:7022
 irqentry_exit+0x35/0x80 kernel/entry/common.c:433
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:lock_is_held_type+0x104/0x140 kernel/locking/lockdep.c:5837
Code: 00 00 b8 ff ff ff ff 65 0f c1 05 77 72 d0 75 83 f8 01 75 29 9c 58 f6 c4 02 75 3d 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 <44> 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 45 31 ed eb b9 0f 0b 48
RSP: 0018:ffffc9000441fb68 EFLAGS: 00000282
RAX: 0000000000000046 RBX: ffff88802d05e458 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8a6c7a20 RDI: ffffffff8ac80840
RBP: ffffffff8c9a65c0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffff88802d05d940
R13: 0000000000000001 R14: 00000000ffffffff R15: 0000000000000002
 bond_should_notify_peers+0x301/0x4d0 drivers/net/bonding/bond_main.c:1128
 bond_mii_monitor+0x16e/0x2bd0 drivers/net/bonding/bond_main.c:2809
 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2597
 worker_thread+0x687/0x1110 kernel/workqueue.c:2748
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>