Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264147AbTKLTfa (ORCPT ); Wed, 12 Nov 2003 14:35:30 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264256AbTKLTfa (ORCPT ); Wed, 12 Nov 2003 14:35:30 -0500 Received: from mail009.syd.optusnet.com.au ([211.29.132.64]:39147 "EHLO mail009.syd.optusnet.com.au") by vger.kernel.org with ESMTP id S264147AbTKLTfZ (ORCPT ); Wed, 12 Nov 2003 14:35:25 -0500 From: Peter Chubb MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <16306.35684.471324.582862@wombat.chubb.wattle.id.au> Date: Thu, 13 Nov 2003 06:35:00 +1100 To: Bernd Schubert Cc: linux-kernel@vger.kernel.org Subject: Re: 2 TB partition support In-Reply-To: <20031112002811.GA18177@tc.pci.uni-heidelberg.de> References: <16304.9647.994684.804486@wombat.chubb.wattle.id.au> <20031112002811.GA18177@tc.pci.uni-heidelberg.de> X-Mailer: VM 7.14 under 21.4 (patch 14) "Reasonable Discussion" XEmacs Lucid Comments: Hyperbole mail buttons accepted, v04.18. X-Face: GgFg(Z>fx((4\32hvXq<)|jndSniCH~~$D)Ka:P@e@JR1P%Vr}EwUdfwf-4j\rUs#JR{'h# !]])6%Jh~b$VA|ALhnpPiHu[-x~@<"@Iv&|%R)Fq[[,(&Z'O)Q)xCqe1\M[F8#9l8~}#u$S$Rm`S9% \'T@`:&8>Sb*c5d'=eDYI&GF`+t[LfDH="MP5rwOO]w>ALi7'=QJHz&y&C&TE_3j! Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1218 Lines: 33 >>>>> "Bernd" == Bernd Schubert writes: Bernd> On Mon, Nov 10, 2003 at 06:12:06PM -0800, Joseph Shamash wrote: >> Hello Peter, >> >> Forgive another quick Q or two. >> >> What is the maximum partition size for a patched 2.4.x kernel, and >> where are those patches? >> Bernd> Hello, Bernd> Are 2TB possible with an unpatched 2.4.x 64bit-AMD64 kernel? On unpatched 2.4, the limit (depending on your driver) for a single block device is either 2TB-1k or 1TB - 512b. The 2.4 kernel keeps the block device sizes in an unsigned int, in 1k units, so the maximum size is (2^32-1)*1k. I forget which subsystem does it,but one of them tries to keep the capacity of a disc in an unsigned int in 512byte units; if you're using that subsystem, the macimum size you can use is (2^31-1)*512b -- Dr Peter Chubb http://www.gelato.unsw.edu.au peterc AT gelato.unsw.edu.au The technical we do immediately, the political takes *forever* - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/