RE: [PATCH] ia64: change defconfig to NR_CPUS==1024

[Luck, Tony]

>> Increase the generic ia64 config from its current max of 512 CPUs to a
>> new max of 1024 CPUs.
>
>I wonder why this would be seen as a sane thing...
>Very few people have 1024 cpus, and the ones that do sure would know how
>to set 1024 in their kernel config. In fact I would argue to lower it. I
>can see the point of keeping it over 64, to give the
>more-cpus-than-a-long code more testing, but 512 is too high already..
>most people who have ia64 will not have 512 cpus.

Would it be impossibly hard to make the >64 cpus case (when the code
switches from a single word to an array) be dependent on a boot-time
variable?  If we could, then the defconfig could just say 128, and
users of monster machines would just boot with "maxcpus=4096" to increase
the size of the bitmask arrays.

-Tony
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