On Wed, Dec 18, 2013 at 12:43:18PM +0100, Peter Zijlstra wrote: > On Wed, Dec 18, 2013 at 12:49:15AM +0100, Frederic Weisbecker wrote: > > That's to start simple as CPU 0 can't be offlined. > > Yes it can, see CONFIG_BOOTPARAM_HOTPLUG_CPU0
Also, that's a traditional weirdness of x86. Other archs might not have this constraint at all and can hotplug any cpu. So relying on the fact that cpu 0 cannot be hotplugged is broken. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
