Date: Sun, 29 Oct 2000 14:27:52 -0800 From: Cy Schubert - ITSD Open Systems Group <Cy.Schubert@uumail.gov.bc.ca> To: Nick Sayer <nsayer@quack.kfu.com> Cc: stable@FreeBSD.ORG Subject: Re: F00F-HACK still necessary? Message-ID: <200010292228.e9TMSBT02221@cwsys.cwsent.com> In-Reply-To: Your message of "Sun, 29 Oct 2000 13:36:15 PST." <39FC984F.48AA97AD@quack.kfu.com>
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In message <39FC984F.48AA97AD@quack.kfu.com>, Nick Sayer writes: > jdp@polstra.com wrote: > > > > In article <200010291602.e9TG25B01059@cwsys.cwsent.com>, Cy Schubert - > > ITSD Open Systems Group <Cy.Schubert@uumail.gov.bc.ca> wrote: > > > > > NO_F00F_HACK is only effective with the original Pentium. If you > > > define i686_CPU, NO_F00F_HACK is implied. > > > > Close, but not quite right. If you _don't_ define I586_CPU then > > NO_F00F_HACK is implied. > > Even if the code is in the kernel, it's not actually activated unless a > Pentium is installed, though. So the only time you really need it is > when you have an Intel Pentium that you know is NOT affected by the > bug... Right? I mean apart from the few hundred bytes of code space, if > the handler isn't installed, it's as if NO_FOOF_HACK was in there all > along. This is what I was trying to say. Regards, Phone: (250)387-8437 Cy Schubert Fax: (250)387-5766 Team Leader, Sun/DEC Team Internet: Cy.Schubert@osg.gov.bc.ca Open Systems Group, ITSD, ISTA Province of BC To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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