------------[ cut here ]------------
WARNING: kernel/irq/manage.c:2158 at request_threaded_irq+0x150/0x164 kernel/irq/manage.c:2158, CPU#1: syz.1.476/5595
Modules linked in:
Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 1 UID: 0 PID: 5595 Comm: syz.1.476 Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: ARM-Versatile Express
Call trace: 
[<80201998>] (dump_backtrace) from [<80201a8c>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:82a20f78 r6:00000000 r5:82332b74 r4:00000001
[<80201a74>] (show_stack) from [<8021e580>] (__dump_stack lib/dump_stack.c:94 [inline])
[<80201a74>] (show_stack) from [<8021e580>] (dump_stack_lvl+0x5c/0x70 lib/dump_stack.c:120)
[<8021e524>] (dump_stack_lvl) from [<8021e5ac>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
 r7:82a20f78 r6:00000000 r5:86698000 r4:82c83d40
[<8021e594>] (dump_stack) from [<80202590>] (vpanic+0x114/0x320 kernel/panic.c:651)
[<8020247c>] (vpanic) from [<802027d0>] (trace_suspend_resume+0x0/0x100 kernel/panic.c:788)
 r7:802f3340
[<8020279c>] (panic) from [<80250a80>] (check_panic_on_warn kernel/panic.c:525 [inline])
[<8020279c>] (panic) from [<80250a80>] (get_taint+0x0/0x1c kernel/panic.c:520)
 r3:82a0b144 r2:00000001 r1:823188d8 r0:82320234
[<80250a08>] (check_panic_on_warn) from [<80250bfc>] (__warn+0x98/0x1a4 kernel/panic.c:1104)
[<80250b64>] (__warn) from [<80250e80>] (warn_slowpath_fmt+0x178/0x1f4 kernel/panic.c:1136)
 r8:00000009 r7:82328584 r6:ea47dcc4 r5:86698000 r4:00000000
[<80250d0c>] (warn_slowpath_fmt) from [<802f3340>] (request_threaded_irq+0x150/0x164 kernel/irq/manage.c:2158)
 r10:00000000 r9:84207540 r8:00000014 r7:814940f4 r6:830b3800 r5:00200000
 r4:ea47dd90
[<802f31f0>] (request_threaded_irq) from [<814943dc>] (request_irq include/linux/interrupt.h:176 [inline])
[<802f31f0>] (request_threaded_irq) from [<814943dc>] (parport_attach drivers/comedi/drivers/comedi_parport.c:237 [inline])
[<802f31f0>] (request_threaded_irq) from [<814943dc>] (parport_attach+0x1cc/0x1e0 drivers/comedi/drivers/comedi_parport.c:224)
 r10:82d30dfc r9:00000003 r8:84207540 r7:ea47dd90 r6:84207540 r5:00000000
 r4:ea47dd90 r3:00200000
[<81494210>] (parport_attach) from [<8148ff10>] (comedi_device_attach+0x108/0x244 drivers/comedi/drivers.c:1101)
 r6:00000000 r5:81e2e3a8 r4:82bd8ea0
[<8148fe08>] (comedi_device_attach) from [<8148b714>] (do_devconfig_ioctl+0xcc/0x218 drivers/comedi/comedi_fops.c:930)
 r10:86698000 r9:00000003 r8:00000003 r7:40946400 r6:b5403587 r5:84207540
 r4:200022c0
[<8148b648>] (do_devconfig_ioctl) from [<8148ca3c>] (comedi_unlocked_ioctl+0x354/0x1db8 drivers/comedi/comedi_fops.c:2302)
 r8:00000003 r7:40946400 r6:200022c0 r5:84207540 r4:85877c00
[<8148c6e8>] (comedi_unlocked_ioctl) from [<805baf7c>] (vfs_ioctl fs/ioctl.c:51 [inline])
[<8148c6e8>] (comedi_unlocked_ioctl) from [<805baf7c>] (do_vfs_ioctl fs/ioctl.c:551 [inline])
[<8148c6e8>] (comedi_unlocked_ioctl) from [<805baf7c>] (__do_sys_ioctl fs/ioctl.c:595 [inline])
[<8148c6e8>] (comedi_unlocked_ioctl) from [<805baf7c>] (sys_ioctl+0x244/0xb5c fs/ioctl.c:583)
 r10:86698000 r9:00000003 r8:85877c00 r7:200022c0 r6:40946400 r5:85877c01
 r4:00000000
[<805bad38>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67)
Exception stack(0xea47dfa8 to 0xea47dff0)
dfa0:                   00000000 00000000 00000003 40946400 200022c0 00000000
dfc0: 00000000 00000000 00356310 00000036 003562d8 00000000 00000001 76f1e0dc
dfe0: 76f1de88 76f1de78 00018ebc 001308d0
 r10:00000036 r9:86698000 r8:8020029c r7:00000036 r6:00356310 r5:00000000
 r4:00000000
Rebooting in 86400 seconds..