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WARNING: kernel/irq/manage.c:2158 at request_threaded_irq+0x150/0x164 kernel/irq/manage.c:2158, CPU#0: syz.3.637/7441
Modules linked in:
Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 0 UID: 0 PID: 7441 Comm: syz.3.637 Not tainted syzkaller #0 PREEMPT 
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 r5:82332258 r4:00000001
[<80201a74>] (show_stack) from [<8021e5e0>] (__dump_stack lib/dump_stack.c:94 [inline])
[<80201a74>] (show_stack) from [<8021e5e0>] (dump_stack_lvl+0x5c/0x70 lib/dump_stack.c:120)
[<8021e584>] (dump_stack_lvl) from [<8021e60c>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
 r7:82a20f78 r6:00000000 r5:847dbd40 r4:82c83d40
[<8021e5f4>] (dump_stack) from [<80202590>] (vpanic+0x114/0x320 kernel/panic.c:651)
[<8020247c>] (vpanic) from [<802027d0>] (trace_suspend_resume+0x0/0x100 kernel/panic.c:788)
 r7:802f3338
[<8020279c>] (panic) from [<80250a88>] (check_panic_on_warn kernel/panic.c:525 [inline])
[<8020279c>] (panic) from [<80250a88>] (get_taint+0x0/0x1c kernel/panic.c:520)
 r3:82a0b144 r2:00000001 r1:82317fbc r0:8231f918
[<80250a10>] (check_panic_on_warn) from [<80250c04>] (__warn+0x98/0x1a4 kernel/panic.c:1104)
[<80250b6c>] (__warn) from [<80250e88>] (warn_slowpath_fmt+0x178/0x1f4 kernel/panic.c:1136)
 r8:00000009 r7:82327c68 r6:dfd7dcc4 r5:847dbd40 r4:00000000
[<80250d14>] (warn_slowpath_fmt) from [<802f3338>] (request_threaded_irq+0x150/0x164 kernel/irq/manage.c:2158)
 r10:00000000 r9:842dd600 r8:00000014 r7:81491124 r6:830b3800 r5:00200000
 r4:dfd7dd90
[<802f31e8>] (request_threaded_irq) from [<8149140c>] (request_irq include/linux/interrupt.h:176 [inline])
[<802f31e8>] (request_threaded_irq) from [<8149140c>] (parport_attach drivers/comedi/drivers/comedi_parport.c:237 [inline])
[<802f31e8>] (request_threaded_irq) from [<8149140c>] (parport_attach+0x1cc/0x1e0 drivers/comedi/drivers/comedi_parport.c:224)
 r10:82d30dfc r9:00000003 r8:842dd600 r7:dfd7dd90 r6:842dd600 r5:00000000
 r4:dfd7dd90 r3:00200000
[<81491240>] (parport_attach) from [<8148cf3c>] (comedi_device_attach+0x108/0x244 drivers/comedi/drivers.c:1101)
 r6:00000000 r5:81e2e148 r4:82bd8e44
[<8148ce34>] (comedi_device_attach) from [<81488740>] (do_devconfig_ioctl+0xcc/0x218 drivers/comedi/comedi_fops.c:930)
 r10:847dbd40 r9:00000003 r8:00000003 r7:40946400 r6:b5403587 r5:842dd600
 r4:200022c0
[<81488674>] (do_devconfig_ioctl) from [<81489a68>] (comedi_unlocked_ioctl+0x354/0x1db8 drivers/comedi/comedi_fops.c:2302)
 r8:00000003 r7:40946400 r6:200022c0 r5:842dd600 r4:838d0600
[<81489714>] (comedi_unlocked_ioctl) from [<805ba7e8>] (vfs_ioctl fs/ioctl.c:51 [inline])
[<81489714>] (comedi_unlocked_ioctl) from [<805ba7e8>] (do_vfs_ioctl fs/ioctl.c:551 [inline])
[<81489714>] (comedi_unlocked_ioctl) from [<805ba7e8>] (__do_sys_ioctl fs/ioctl.c:595 [inline])
[<81489714>] (comedi_unlocked_ioctl) from [<805ba7e8>] (sys_ioctl+0x244/0xb5c fs/ioctl.c:583)
 r10:847dbd40 r9:00000003 r8:838d0600 r7:200022c0 r6:40946400 r5:838d0601
 r4:00000000
[<805ba5a4>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67)
Exception stack(0xdfd7dfa8 to 0xdfd7dff0)
dfa0:                   00000000 00000000 00000003 40946400 200022c0 00000000
dfc0: 00000000 00000000 00346310 00000036 003462d8 00000000 00000001 76fbb0dc
dfe0: 76fbae88 76fbae78 00018ebc 00130820
 r10:00000036 r9:847dbd40 r8:8020029c r7:00000036 r6:00346310 r5:00000000
 r4:00000000
Rebooting in 86400 seconds..