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SMP on x86/Linux is now an official feature and is not experimental.
Experimental SMP support for other architectures is underway.
Please view linux/Documentation/smp.txt for more information about enabling SMP.
SMP support for Linux with up to 16 processors using the Intel MP
specification.
To fix:
o Clean up processor specific/independent split.
o Document it all. [PARTLY DONE]
o Halting other CPUs on reset or panic doesn't always work.
o Don't waste page at 4 K--don't need it now (watch the GDT code).
o Dump bootup pages once booted somehow.
o Clean up warnings/volatiles.
o 486 startup code.
o How to handle mixed FPU/non FPU processors.
o Test IO-APIC on various hardware.
o Separate IO-APIC from SMP.
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