From owner-freebsd-stable@FreeBSD.ORG Wed Feb 7 09:44:09 2007 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 28A2116A400 for ; Wed, 7 Feb 2007 09:44:08 +0000 (UTC) (envelope-from erikt@midgard.homeip.net) Received: from ch-smtp01.sth.basefarm.net (ch-smtp01.sth.basefarm.net [80.76.149.212]) by mx1.freebsd.org (Postfix) with ESMTP id C6AAD13C4B7 for ; Wed, 7 Feb 2007 09:44:06 +0000 (UTC) (envelope-from erikt@midgard.homeip.net) Received: from c83-253-29-241.bredband.comhem.se ([83.253.29.241]:57980 helo=falcon.midgard.homeip.net) by ch-smtp01.sth.basefarm.net with smtp (Exim 4.63) (envelope-from ) id 1HEj3R-0008Je-4X for freebsd-stable@freebsd.org; Wed, 07 Feb 2007 10:25:30 +0100 Received: (qmail 26476 invoked from network); 7 Feb 2007 10:25:26 +0100 Received: from owl.midgard.homeip.net (10.1.5.7) by falcon.midgard.homeip.net with SMTP; 7 Feb 2007 10:25:26 +0100 Received: (qmail 37070 invoked by uid 1001); 7 Feb 2007 10:25:26 +0100 Date: Wed, 7 Feb 2007 10:25:26 +0100 From: Erik Trulsson To: Artem Kuchin Message-ID: <20070207092526.GA37030@owl.midgard.homeip.net> Mail-Followup-To: Artem Kuchin , Boris Samorodov , freebsd-stable@freebsd.org References: <004401c74a4b$8072fa90$0c00a8c0@Artem> <21342944@srv.sem.ipt.ru> <013c01c74a95$ca217000$0c00a8c0@Artem> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable In-Reply-To: <013c01c74a95$ca217000$0c00a8c0@Artem> User-Agent: Mutt/1.5.13 (2006-08-11) X-Scan-Result: No virus found in message 1HEj3R-0008Je-4X. X-Scan-Signature: ch-smtp01.sth.basefarm.net 1HEj3R-0008Je-4X 9516fc03a0b3850847f68a39eea20b96 Cc: Boris Samorodov , freebsd-stable@freebsd.org Subject: Re: Filesystem corruption and bad perfomance with SRCS16 and PAE (raid 5 2TB) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 07 Feb 2007 09:44:09 -0000 On Wed, Feb 07, 2007 at 11:53:17AM +0300, Artem Kuchin wrote: > Boris Samorodov wrote: > >On Wed, 7 Feb 2007 03:04:05 +0300 Artem Kuchin wrote: > >>Andras G=F3t wrote: > > > >>>Can you try the AMD64 version on that server? > > > >>Um.. i have never tried anything AMD in my life. I thought > >>AMD64 is only for AMD CPUs and this is Intel Xeon. > >>Are you really suggesting installing FreeBSD for AMD64 > >>on this Xeon server? Why? Should it help? > > > >You may be interested at reading: > >http://www.freebsd.org/releases/6.2R/hardware-amd64.html#PROC >=20 > Actually i have read it many time before, but i guess, never paed > attention ;) >=20 > anyhow, this: >=20 > "There may be some issues with 64-bit cleanliness in some (particularly= =20 > older) drivers. Generally, drivers that already function correctly on oth= er=20 > 64-bit platforms should work. > FreeBSD/amd64 is a very young platform on FreeBSD. While the core FreeBSD= =20 > kernel and base system components are generally fairly robust, there are= =20 > likely to still be rough edges, particularly with third party packages." >=20 > scares me. Do you really think it is better than PAE? If a driver has problems on amd64 due to not being 64-bit clean, it is likely to have at least as much problems with PAE.=20 Take a look at /usr/src/sys/i386/conf/PAE to see a list of all the drivers that have been known to have problems with PAE. PAE mode is an ugly hack which is best avoided unless you really have to go beyond the 4 GB limit on older x86 CPU's. --=20 Erik Trulsson ertr1013@student.uu.se