Sure you can. For 5 years, this has been the only workaround on my PR440FX based SMP box to keep the RTC in sync - with enabled SMP of course! See:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=55223 > > Interrupt handling. I think you can not disable them on SMP machines > (and retain SMP, that is). >
