On Thu, Aug 19, 2004 at 10:16:31AM -0400, Andres Salomon wrote: > On Thu, 19 Aug 2004 12:56:08 +0900, Horms wrote: > > > Hi, > > > > I am wondering what the reaction to uploading a p4-smp kernel > > for kernel-image-2.4.26-i386 would be. This would allow hyperthreading > > to be enabled on p4 processors that support it. I can also supply > > a suitable patch to debian-installer if there is interest, though that > > is a) probably too late and b) orthogonal. > > > > The only change to 686-smp that I enviage would be to change > > the Processor Family to p4. I would probably provide an p4 (non-smp) > > image as well for completeness. > > > > This could all be done for 2.4.26-6. > > > > Objections? > > Hm, I had been under the impression that 686-smp already enabled > hyperthreading. Looking at the difference between 2.4 and 2.6, though, it > would appear that CONFIG_X86_HT isn't set. Is there a way to set this for > 686-smp, or is 2.4 support for that not there yet?
My understanding is that you need P4+SMP for hyperthreading to work. Certainly the 686-smp kernel does not enable hyperthreading, that was the first thing I tested. -- Horms
