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:

quoted

On Thu, 21 Oct 2004 18:33:20 -0700

Eugene Surovegin [off-list ref] wrote:

quoted

On Fri, Oct 22, 2004 at 08:57:33AM +0900, Hiroshi DOYU wrote:

quoted

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 [off-list ref]            
SYSGO AG                      Embedded and Real-Time Software
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