Re: the creation of boot_cpu_init() is wrong and accessinguninitialised data

[James Bottomley]

On Tue, 2006-06-27 at 23:00 +1000, Keith Owens wrote:
> AFAICR, the BSP is supposed to be logical cpu 0 on all architectures.
> Most architectures assign logical cpu 0 to the BSP, even if the BSP
> has
> a non-zero hard_smp_processor_id.  ia64 even has this

That's definitely not a requirement.  For systems like voyager whose
CPUs cannot be renumbered it makes no sense.  The original reason for
renumbering was that most CPU loops ran from 1 to max_cpu and therefore
worked better if the CPU map was dense.  However, I fixed that up long
ago so sparse CPU map traversal should be fine now.

James


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/