------------[ cut here ]------------
WARNING: kernel/irq/manage.c:2150 at request_threaded_irq+0x150/0x164 kernel/irq/manage.c:2150, CPU#1: syz.0.111/4177
Modules linked in:
Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 1 UID: 0 PID: 4177 Comm: syz.0.111 Not tainted syzkaller #0 PREEMPT 
Hardware name: ARM-Versatile Express
Call trace: 
[<80201a14>] (dump_backtrace) from [<80201b08>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:8281f934 r6:00000000 r5:822a8a24 r4:00000001
[<80201af0>] (show_stack) from [<8021e410>] (__dump_stack lib/dump_stack.c:94 [inline])
[<80201af0>] (show_stack) from [<8021e410>] (dump_stack_lvl+0x5c/0x70 lib/dump_stack.c:120)
[<8021e3b4>] (dump_stack_lvl) from [<8021e43c>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
 r7:8281f934 r6:00000000 r5:840a8000 r4:82a80d14
[<8021e424>] (dump_stack) from [<8020260c>] (vpanic+0x114/0x320 kernel/panic.c:650)
[<802024f8>] (vpanic) from [<8020284c>] (trace_suspend_resume+0x0/0x104 kernel/panic.c:787)
 r7:802eda5c
[<80202818>] (panic) from [<80250a70>] (check_panic_on_warn kernel/panic.c:524 [inline])
[<80202818>] (panic) from [<80250a70>] (get_taint+0x0/0x1c kernel/panic.c:519)
 r3:8280c544 r2:00000001 r1:8228f730 r0:82296ffc
[<802509f8>] (check_panic_on_warn) from [<80250bec>] (__warn+0x98/0x1ac kernel/panic.c:1062)
[<80250b54>] (__warn) from [<80250e78>] (warn_slowpath_fmt+0x178/0x1f4 kernel/panic.c:1089)
 r8:00000009 r7:8229f060 r6:dfaf5cc4 r5:840a8000 r4:00000000
[<80250d04>] (warn_slowpath_fmt) from [<802eda5c>] (request_threaded_irq+0x150/0x164 kernel/irq/manage.c:2150)
 r10:00000000 r9:8301a840 r8:00000014 r7:81435c84 r6:830b1a00 r5:00200000
 r4:dfaf5d90
[<802ed90c>] (request_threaded_irq) from [<81435f5c>] (request_irq include/linux/interrupt.h:176 [inline])
[<802ed90c>] (request_threaded_irq) from [<81435f5c>] (parport_attach drivers/comedi/drivers/comedi_parport.c:235 [inline])
[<802ed90c>] (request_threaded_irq) from [<81435f5c>] (parport_attach+0x1bc/0x1d0 drivers/comedi/drivers/comedi_parport.c:224)
 r10:82b2f0bc r9:00000003 r8:8301a840 r7:dfaf5d90 r6:8301a840 r5:00000000
 r4:dfaf5d90 r3:00200000
[<81435da0>] (parport_attach) from [<81431a88>] (comedi_device_attach+0x10c/0x248 drivers/comedi/drivers.c:1077)
 r6:00000000 r5:81e253b8 r4:829d6b1c
[<8143197c>] (comedi_device_attach) from [<8142d294>] (do_devconfig_ioctl+0xd4/0x21c drivers/comedi/comedi_fops.c:930)
 r10:840a8000 r9:00000003 r8:00000003 r7:40946400 r6:b5403587 r5:8301a840
 r4:200000c0
[<8142d1c0>] (do_devconfig_ioctl) from [<8142e5b8>] (comedi_unlocked_ioctl+0x354/0x1dbc drivers/comedi/comedi_fops.c:2302)
 r8:00000003 r7:40946400 r6:200000c0 r5:8301a840 r4:838d4e40
[<8142e264>] (comedi_unlocked_ioctl) from [<805912c0>] (vfs_ioctl fs/ioctl.c:51 [inline])
[<8142e264>] (comedi_unlocked_ioctl) from [<805912c0>] (do_vfs_ioctl fs/ioctl.c:551 [inline])
[<8142e264>] (comedi_unlocked_ioctl) from [<805912c0>] (__do_sys_ioctl fs/ioctl.c:595 [inline])
[<8142e264>] (comedi_unlocked_ioctl) from [<805912c0>] (sys_ioctl+0x244/0xb5c fs/ioctl.c:583)
 r10:840a8000 r9:00000003 r8:838d4e40 r7:200000c0 r6:40946400 r5:838d4e41
 r4:00000000
[<8059107c>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67)
Exception stack(0xdfaf5fa8 to 0xdfaf5ff0)
5fa0:                   00000000 00000000 00000003 40946400 200000c0 00000000
5fc0: 00000000 00000000 00346310 00000036 003462d8 00000000 00000001 76f030dc
5fe0: 76f02e88 76f02e78 00018bc4 00130300
 r10:00000036 r9:840a8000 r8:8020029c r7:00000036 r6:00346310 r5:00000000
 r4:00000000
Rebooting in 86400 seconds..