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turning off MULTIPROCESSOR



I have a custom kernel (i386) that I want to run on a machine that might
have 2 cpus, but I want to only use 1 cpu because I'm not 100% sure the
locking is right in the new code.  I went to turn off options
MULTIPROCESSOR, but it seems that is now non-optional.  Is there a
compile-time way to disable cpus beyond cpu0?  Or should I use cpuctl?
or ?

    Thanks,
    Greg

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