From: Gerhard Jaeger <g.jaeger@sysgo.com>
To: linuxppc-embedded@ozlabs.org
Cc: Daren Hayward <darenh@4bridgeworks.com>
Subject: Re: [BUG] IBM440GX works too slow under nfsroot
Date: Fri, 22 Oct 2004 08:30:31 +0200 [thread overview]
Message-ID: <200410220830.31518.g.jaeger@sysgo.com> (raw)
In-Reply-To: <C18BA5DDB58DD511BD0700C0DF0DD4502941EC@NTSERVER4>
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 <ebs@ebshome.net> 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 <gjaeger@sysgo.com>
SYSGO AG Embedded and Real-Time Software
www.sysgo.com | www.elinos.com | www.osek.de | www.imerva.com
next prev parent reply other threads:[~2004-10-22 6:30 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-22 5:57 [BUG] IBM440GX works too slow under nfsroot Daren Hayward
2004-10-22 6:30 ` Gerhard Jaeger [this message]
-- strict thread matches above, loose matches on Subject: below --
2004-10-22 7:36 Neil Wilson
2004-10-21 23:57 Hiroshi DOYU
2004-10-22 1:19 ` Eugene Surovegin
2004-10-22 1:26 ` Hiroshi DOYU
2004-10-22 1:33 ` Eugene Surovegin
2004-10-22 1:38 ` Hiroshi DOYU
2004-10-22 2:02 ` Eugene Surovegin
2004-10-22 6:26 ` Gerhard Jaeger
2004-10-22 8:29 ` Eugene Surovegin
2004-10-22 9:39 ` Gerhard Jaeger
2004-10-22 12:22 ` Mark Chambers
2004-10-22 12:27 ` Gerhard Jaeger
2004-10-25 1:16 ` Eugene Surovegin
2004-10-25 6:47 ` Gerhard Jaeger
2004-10-25 7:02 ` Eugene Surovegin
2004-11-08 2:55 ` Eugene Surovegin
2004-10-22 22:22 ` Matt Porter
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