On Fri, Oct 28, 2016 at 09:34:53PM +0200, Thomas Gleixner wrote: > Right. That mapping setup is an utter trainwreck as we do it from multiple > places, but there is no reason why we can't move it before the call to > prefill_possible_map().
> diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c > index bbfbca5fea0c..b59fdba3cbdf 100644 > --- a/arch/x86/kernel/setup.c > +++ b/arch/x86/kernel/setup.c > @@ -1221,11 +1221,13 @@ void __init setup_arch(char **cmdline_p) > */ > get_smp_config(); > > + /* Make sure apic is mapped before prefill_possible_map() */ > + init_apic_mappings(); > + > prefill_possible_map(); > > init_cpu_to_node(); > > - init_apic_mappings(); > io_apic_init_mappings(); > > kvm_guest_init(); FWIW, I got another user's confirmation that this works with his virtual box: https://bugzilla.suse.com/show_bug.cgi?id=1006417#c32 https://bugzilla.suse.com/show_bug.cgi?id=1006417#c33 Thanks. -- Regards/Gruss, Boris. ECO tip #101: Trim your mails when you reply.
