From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lists.gentoo.org ([140.105.134.102] helo=robin.gentoo.org) by nuthatch.gentoo.org with esmtp (Exim 4.43) id 1EJkig-0003dm-IF for garchives@archives.gentoo.org; Mon, 26 Sep 2005 04:36:02 +0000 Received: from robin.gentoo.org (localhost [127.0.0.1]) by robin.gentoo.org (8.13.5/8.13.5) with SMTP id j8Q4QmLt014372; Mon, 26 Sep 2005 04:26:48 GMT Received: from smtpauth03.mail.atl.earthlink.net (smtpauth03.mail.atl.earthlink.net [209.86.89.63]) by robin.gentoo.org (8.13.5/8.13.5) with ESMTP id j8Q4QmW8004788 for ; Mon, 26 Sep 2005 04:26:48 GMT Received: from [63.201.15.180] (helo=sarge.electronerdia.net) by smtpauth03.mail.atl.earthlink.net with asmtp (Exim 4.34) id 1EJkgJ-0008Vi-98 for gentoo-amd64@lists.gentoo.org; Mon, 26 Sep 2005 00:33:35 -0400 Received: from sheila.electronerdia.net (sheila.electronerdia.net [192.168.1.32]) by sarge.electronerdia.net (Postfix) with ESMTP id 3159CFF1EC for ; Sun, 25 Sep 2005 21:37:11 -0700 (PDT) From: John Myers To: gentoo-amd64@lists.gentoo.org Subject: Re: [gentoo-amd64] Can I run a 32-bit kernel on my 64-bit kernel Gentoo machine? Date: Sun, 25 Sep 2005 14:35:35 -0700 User-Agent: KMail/1.8 References: <5bdc1c8b05092519454117d3df@mail.gmail.com> <43376F4F.30909@mn.rr.com> In-Reply-To: <43376F4F.30909@mn.rr.com> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-amd64@gentoo.org Reply-to: gentoo-amd64@lists.gentoo.org MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart4382038.K9IocP4xvH"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <200509251435.36060.electronerd@monolith3d.com> X-ELNK-Trace: 8839a2c17b2169aa1aa676d7e74259b7b3291a7d08dfec79fbfd5f1cd1bbc4bd15b158dbadad892a350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 63.201.15.180 X-Archives-Salt: 182c9297-ebae-4593-a4a4-e10e8c44ac1e X-Archives-Hash: a9f0e9bd2c5dee32863c12df401c287c --nextPart4382038.K9IocP4xvH Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Sunday 25 September 2005 20:47, John C. Shimek wrote: > You do a straight 32bit install on your amd64.=20 That's beside the point. His question was whether he could just use a 32-bi= t=20 kernel with a 64-bit userland (i.e. not having to recompile everything), th= e=20 answer to which is no. > I don't know whether to call your precessor an athlon or maybe > a generic x86 processor. Depending on his version of GCC, he would use -march=3Dathlon64 or=20 =2Dmarch=3Dathlon-xp, i believe > It is the same as running Windows 2000/XP on this processor. The OS thin= ks=20 > it has a 32bit CPU. Only you are limited to 32bit limitation on hardware, And you miss out on a bunch of extra general-purpose registers, which is=20 actually what makes x86_64 faster than x86, not the 64-bitness, which would= =20 otherwise make it slower due to larger code size > mainly memory AFAIK, only if you have >=3D 4GB > and possibly harddrive, I don't know.=20 No. > I am sure others can point in the correct direction for=20 > rebuild your system if needed, let more experieced wiser minds help > where they can. Except that's what he's trying to avoid... --nextPart4382038.K9IocP4xvH Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2-ecc0.1.6 (GNU/Linux) iD8DBQBDNxgovqDgVb4O7CURAr1VAKDOK4Qg9sYRbmbXYjM3XQSdV7owKACfXNQY ona5pPoV16c+1VKIe2qec2Y= =8gAB -----END PGP SIGNATURE----- --nextPart4382038.K9IocP4xvH-- -- gentoo-amd64@gentoo.org mailing list