------------[ cut here ]------------ WARNING: [irq_settings_is_per_cpu_devid(desc)] kernel/irq/manage.c:2125 at request_threaded_irq+0x320/0x38c kernel/irq/manage.c:2125, CPU#0: syz.2.349/5922 Modules linked in: CPU: 0 UID: 0 PID: 5922 Comm: syz.2.349 Not tainted syzkaller #0 PREEMPT Hardware name: riscv-virtio,qemu (DT) epc : request_threaded_irq+0x320/0x38c kernel/irq/manage.c:2125 ra : request_threaded_irq+0x320/0x38c kernel/irq/manage.c:2125 epc : ffffffff8032d750 ra : ffffffff8032d750 sp : ffff8f8002b37810 gp : ffffffff89f9df20 tp : ffffaf801d114f80 t0 : ffffffff86391c0a t1 : ffffffff9136c6e0 t2 : ffffffff8016a132 s0 : ffff8f8002b37870 s1 : 0000000000000000 a0 : 0000000000000005 a1 : 0000000000000000 a2 : 0000000000080000 a3 : ffffffff8032d750 a4 : ffff8f800c087260 a5 : 000000000018e260 a6 : 0000000000000003 a7 : ffffffff86660460 s2 : 0000000000200000 s3 : ffffaf8011e8d000 s4 : 0000000000000005 s5 : ffffffff84b56ef4 s6 : ffffaf80166c7000 s7 : 0000000000000000 s8 : ffffffff87597e60 s9 : 0000000000020000 s10: ffffaf80166c7000 s11: 0000000000000001 t3 : 0000000000000001 t4 : 0000000000001fff t5 : 00000000000000c8 t6 : 0000000000000002 ssp : 0000000000000000 status: 0000000200000120 badaddr: ffffffff8032d750 cause: 0000000000000003 [] request_threaded_irq+0x320/0x38c kernel/irq/manage.c:2125 [] request_irq include/linux/interrupt.h:176 [inline] [] parport_attach drivers/comedi/drivers/comedi_parport.c:235 [inline] [] parport_attach+0x780/0xb14 drivers/comedi/drivers/comedi_parport.c:224 [] comedi_device_attach+0x350/0x7ec drivers/comedi/drivers.c:1069 [] do_devconfig_ioctl+0x1a2/0x654 drivers/comedi/comedi_fops.c:928 [] comedi_unlocked_ioctl+0x338/0x2c10 drivers/comedi/comedi_fops.c:2240 [] vfs_ioctl fs/ioctl.c:51 [inline] [] __do_sys_ioctl fs/ioctl.c:597 [inline] [] __se_sys_ioctl fs/ioctl.c:583 [inline] [] __riscv_sys_ioctl+0x17c/0x1e4 fs/ioctl.c:583 [] syscall_handler+0x92/0x114 arch/riscv/include/asm/syscall.h:112 [] do_trap_ecall_u+0x3d2/0x58c arch/riscv/kernel/traps.c:344 [] handle_exception+0x15e/0x16a arch/riscv/kernel/entry.S:232