On Fri, Mar 22, 2013 at 09:21:00PM +0200, Gleb Natapov wrote: > On Fri, Mar 22, 2013 at 04:14:07PM -0300, Marcelo Tosatti wrote: > > > > RHEL5 i386 guests register non 32-byte aligned addresses: > > > > kvm-clock: cpu 1, msr 0:3018aa5, secondary cpu clock > > kvm-clock: cpu 2, msr 0:301f8e9, secondary cpu clock > > kvm-clock: cpu 3, msr 0:302672d, secondary cpu clock > > > > Check for an address+len that would cross page boundary > > instead. > > > Ugh. Is there guaranty that it will not register a memory region that > crosses page boundary or it is pure luck that this does not happen? Pure build time luck - there is no guarantee that percpu data will not cross page boundary AFAIK. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
