Re: [Xen-devel] xen-hotplug.patch

[Emmanuel Ackaouy <ack@xxxxxxxxxxxxx>]

On Wed, Aug 02, 2006 at 03:45:27PM +0100, Jan Beulich wrote:
> >top (at least old versions) would crash if the number of online 
> >processors changed while they ran. Hence this patch. Not clear it's 
> >really a good fix, but it does okay as a workaround.
> 
> That must be a problem with CPU hotplug on real hardware then, too.

Yeah.

In practice the problem is less visible on real hardware because
CPU hotplugging is not be used as aggressively in that scenario
as it might when multiple SMP virtual guests compete for a fixed
number of physical CPUs on Xen.

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