>>> On 02.07.18 at 12:00, <jgross@xxxxxxxx> wrote: > --- a/arch/x86/xen/enlighten_pv.c > +++ b/arch/x86/xen/enlighten_pv.c > @@ -1213,6 +1213,7 @@ asmlinkage __visible void __init xen_start_kernel(void) > pv_info = xen_info; > pv_init_ops.patch = paravirt_patch_default; > pv_cpu_ops = xen_cpu_ops; > + xen_init_irq_ops(); Isn't this still too late? xen_setup_machphys_mapping(), for example, has a WARN_ON(), which implies multiple printk()s. Jan