RE: [Linux-ia64] [patch] logical CPU numbering

Wichmann, Mats D
2003-03-20T20:07:32Z

> If a CPU fails to start during smp_boot_cpus(), then the logical CPU
> numbering gets will have a "hole". Using the number of booted CPU's
> instead of the loop index will correct this.

Just curious, does having a hole cause a problem?
It might well; I don't know.

I consider some future scenario where if cpu X
didn't come up, it can be hot-replaced, at which
point one might actually want to have that "slot"
reserved for it.