On Tue, 2004-11-30 at 23:06 -0500, William M. Quarles wrote: > Alan Cox wrote: > > On Tue, Nov 30, 2004 at 09:56:23PM -0500, William M. Quarles wrote: > > > >>What differences between i386 and i486 would become a benefit if the > >>base architecture was changed from i386 to i486? > > > > The only thing 486 might give is the ability to consign the old linuxthread > > stuff to the dustbin of back compatibility. > > I'm guessing that's supposed to be a joke? No, the x86 NPTL implementation requires the CMPXCHG instruction, which was introduced in the i486. -- Nicholas Miell <nmiell@xxxxxxxxxxx>