Well, it's not (rather it belongs in comp.os.linux.misc or possibly
comp.os.linux.development.system), but I'll answer anyway:
Linux is 64 bits on the Alpha, and only on the Alpha, since it is the
only 64-bit architecture supported. MIPS and SPARC have recent 64-bit
extensions, but I am fairly certain they are only supported in 32-bit
mode. The i386 is inherently a 32-bit architecture (with 16-bit
compatibility) and will not support any 64-bitness.
-hpa
-- This space intentionally has nothing but text explaining why this space has nothing but text explaining why this space would otherwise have been left blank, and would otherwise have been left blank.