Date: Fri, 20 May 2005 11:09:04 -0600 From: Scott Long <scottl@samsco.org> To: obrien@freebsd.org Cc: freebsd-amd64@freebsd.org Subject: Re: FreeBSD on dual core Opterons - stupid buildworld test Message-ID: <428E19B0.6030001@samsco.org> In-Reply-To: <20050520165526.GE6982@dragon.NUXI.org> References: <428B6FC1.3000907@fsn.hu> <1116437340.69035.0.camel@hood.oook.cz> <20050518180521.GB9719@odin.ac.hmc.edu> <20050519010828.GA64608@dragon.NUXI.org> <428CC309.5040306@fsn.hu> <20050520165526.GE6982@dragon.NUXI.org>
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David O'Brien wrote: > On Thu, May 19, 2005 at 06:47:05PM +0200, Attila Nagy wrote: > >>David O'Brien wrote: >> >>>I'm taking care of this. Please no one commit any AMD Dual-core related >>>patches (especially WRT HTT) with out passing them by me. >> >>Do you have any preliminary patches? Access to hardware? > > > Yes I have hardware - since March. > > Everyone should note that difference of dual-core vs. single core doesn't > matter one bit for FreeBSD. We don't have NUMA support, which is what is > required to care about the difference between 1x dual-core & 2x > single-core (or 2x dual-core & 4x single-core) Opteron. > > For 6.0-RELEASE (which branches June 1, 2005), I'm going to just have the > kernel ignore that dual-core Opteron sets the HTT feature flag. > Note, 6.0-RELEASE does not happen on June 1. That is the date where we shift out of crazy development mode and into polishing mode. Polishing would include making a CPU feature work correctly. Scott
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