sched: DL replenish lagged too much
watchdog: BUG: soft lockup - CPU#1 stuck for 430s! [kworker/1:10:7184]
Modules linked in:
CPU: 1 UID: 0 PID: 7184 Comm: kworker/1:10 Not tainted syzkaller #0 PREEMPT 
Hardware name: ARM-Versatile Express
Workqueue: events fqdir_free_fn
PC is at csd_lock_wait kernel/smp.c:351 [inline]
PC is at smp_call_function_single+0xd0/0x244 kernel/smp.c:687
LR is at __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
LR is at _raw_spin_unlock_irqrestore+0x30/0x54 kernel/locking/spinlock.c:194
pc : [<8034eca4>]    lr : [<81a6dd4c>]    psr: 20000113
sp : e0099e38  ip : e0099d40  fp : e0099e84
r10: 00000001  r9 : 00000001  r8 : 00000000
r7 : 8030263c  r6 : 00000000  r5 : 86983000  r4 : e0099e40
r3 : 00000011  r2 : 00000001  r1 : 20000113  r0 : 00000000
Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
Control: 30c5387d  Table: 849b4b00  DAC: 00000000
Call trace: 
[<8034ebd4>] (smp_call_function_single) from [<80302284>] (rcu_barrier kernel/rcu/tree.c:3872 [inline])
[<8034ebd4>] (smp_call_function_single) from [<80302284>] (rcu_barrier+0x154/0x3a0 kernel/rcu/tree.c:3809)
 r10:8280c960 r9:828efc1c r8:00000309 r7:82457528 r6:80000113 r5:dddd0a80
 r4:00000000
[<80302130>] (rcu_barrier) from [<817b7434>] (fqdir_free_fn+0x34/0xb4 net/ipv4/inet_fragment.c:166)
 r10:83016170 r9:83018615 r8:86983000 r7:ddde3d80 r6:83018600 r5:869b96d4
 r4:84ee8200
[<817b7400>] (fqdir_free_fn) from [<802785a0>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3263)
 r5:829edab4 r4:84ee8200
[<802783ec>] (process_one_work) from [<802791e8>] (process_scheduled_works kernel/workqueue.c:3346 [inline])
[<802783ec>] (process_one_work) from [<802791e8>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3427)
 r10:61c88647 r9:86983000 r8:84ee822c r7:82804d40 r6:ddde3d80 r5:ddde3da0
 r4:84ee8200
[<80278fec>] (worker_thread) from [<8028020c>] (kthread+0x12c/0x280 kernel/kthread.c:463)
 r10:00000000 r9:84ee8200 r8:80278fec r7:df969e60 r6:84ee8d80 r5:86983000
 r4:00000001
[<802800e0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137)
Exception stack(0xe0099fb0 to 0xe0099ff8)
9fa0:                                     00000000 00000000 00000000 00000000
9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
9fe0: 00000000 00000000 00000000 00000000 00000013 00000000
 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802800e0
 r4:85996580
Sending NMI from CPU 1 to CPUs 0: