Date: Thu, 12 Apr 2007 12:55:45 +0200 From: Henrik Brix Andersen <henrik@brixandersen.dk> To: Dag-Erling =?iso-8859-1?Q?Sm=F8rgrav?= <des@des.no> Cc: freebsd-fs@FreeBSD.ORG, Peter Jeremy <peterjeremy@optushome.com.au>, freebsd-current@FreeBSD.ORG, Pawel Jakub Dawidek <pjd@FreeBSD.ORG>, ticso@cicely.de Subject: Re: ZFS committed to the FreeBSD base. Message-ID: <20070412105545.GB84337@tirith.brixandersen.dk> In-Reply-To: <86ps6aht1i.fsf@dwp.des.no> References: <20070406025700.GB98545@garage.freebsd.pl> <86k5wo55s0.fsf@dwp.des.no> <20070407203411.GJ8831@cicely12.cicely.de> <86wt0n3mxv.fsf@dwp.des.no> <20070411214911.GA38351@VARK.MIT.EDU> <20070412073605.GB834@turion.vk2pj.dyndns.org> <86ps6aht1i.fsf@dwp.des.no>
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--YZ5djTAD1cGYuMQK Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Apr 12, 2007 at 10:54:17AM +0200, Dag-Erling Sm=F8rgrav wrote: > Peter Jeremy <peterjeremy@optushome.com.au> writes: > > There's a feature bit (CPUID_CX8) that advertises the availability of > > cmpxchg8b (and maybe some related instructions). My pre-MMX 586 has > > this bit set so I presume anything later than 486 will support it. > > (I'm not sure about the low-end VIA, GEODE etc clones). >=20 > The Geode is a 486, and does not support it. The Geodes found in both my net4801-50 and net4801-60 are both i586-class CPUs with CX8 support: $ dmesg | grep -A 2 ^CPU CPU: Geode(TM) Integrated Processor by National Semi (266.65-MHz 586-class = CPU) Origin =3D "Geode by NSC" Id =3D 0x540 Stepping =3D 0 Features=3D0x808131<FPU,TSC,MSR,CX8,CMOV,MMX> Regards, Brix --=20 Henrik Brix Andersen <henrik@brixandersen.dk> --YZ5djTAD1cGYuMQK Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (FreeBSD) Comment: GnuPG signed iD8DBQFGHhAwv+Q4flTiePgRAjshAJ9vEwNB+GGf/KY124e+rMYR58V/zQCfRxBj wBXXlN+msrXE5UG3sMU0U4w= =yJ3Y -----END PGP SIGNATURE----- --YZ5djTAD1cGYuMQK--
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