From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mailgate.sysgo.de (ns.sysgo.de [213.68.67.98]) by ozlabs.org (Postfix) with ESMTP id E7D4B2BC0F for ; Fri, 22 Oct 2004 16:30:36 +1000 (EST) From: Gerhard Jaeger To: linuxppc-embedded@ozlabs.org Date: Fri, 22 Oct 2004 08:30:31 +0200 References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15" Message-Id: <200410220830.31518.g.jaeger@sysgo.com> Cc: Daren Hayward Subject: Re: [BUG] IBM440GX works too slow under nfsroot List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Friday 22 October 2004 07:57, Daren Hayward wrote: > What revision of the CPU do you have?? I know that upto rev C half duplex > has a problem with the cpu and only REV C silicon works if I am not > mistaken, there is an errata on IBM's website about this > > Daren > > -----Original Message----- > From: Eugene Surovegin [mailto:ebs@ebshome.net] > Sent: 22 October 2004 03:02 > To: Hiroshi DOYU > Cc: Linux PPC Embedded > Subject: Re: [BUG] IBM440GX works too slow under nfsroot > > On Fri, Oct 22, 2004 at 10:38:59AM +0900, Hiroshi DOYU wrote: > > On Thu, 21 Oct 2004 18:33:20 -0700 > > > > Eugene Surovegin wrote: > > > On Fri, Oct 22, 2004 at 08:57:33AM +0900, Hiroshi DOYU wrote: > > > > Now I am strugging with booting vanilla(2.4.2x) on ibm440gx and > > > > I could succeed to boot it but, after nfs mounted, it's behavior > > > > seems too slow. I guess, it looks like the system is running > > > > half duplex. > > > > > > Yeah, driver thinks it's connected to 10Mb hub. How the board is > > > actualy connected to the network? > > > > 10Mb hub. > > Wow, I really had to spend some time to find such ancient hw :). I'll > try 2.4.27 with this hub during next couple of days (I'm a little busy > right now) and let you know. I suspect nobody really tested EMAC driver > in 10Mb HDX mode. > > You can also bug Matt Porter, maybe he'll help you sooner :). Daren, you are right about that, but this seems to be not true, even the latest REV C seems to have problems - that's what we can observe here :( Gerhard -- Gerhard Jaeger SYSGO AG Embedded and Real-Time Software www.sysgo.com | www.elinos.com | www.osek.de | www.imerva.com