APIC_ERR_VECT
mdb_printf("as_err_vect\t%x\n", papic[APIC_ERR_VECT]);
apic_reg_ops->apic_write(APIC_ERR_VECT, apic_errvect);
sp->as_err_vect = apic_reg_ops->apic_read(APIC_ERR_VECT);
apic_reg_ops->apic_write(APIC_ERR_VECT, sp->as_err_vect);
apic_reg_ops->apic_write(APIC_ERR_VECT, apic_errvect);
apic_reg_ops->apic_write(APIC_ERR_VECT, AV_MASK);