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Re: NFS root with cache on

To: Quinn Jensen <jensenq@Lineo.COM>
Subject: Re: NFS root with cache on
From: Jun Sun <jsun@mvista.com>
Date: Mon, 05 Feb 2001 10:07:18 -0800
Cc: Ralf Baechle <ralf@oss.sgi.com>, linux-mips@oss.sgi.com
References: <3A79C869.2040001@Lineo.COM> <20010204194451.A26868@bacchus.dhis.org> <3A7ED9EB.6080801@Lineo.COM>
Sender: owner-linux-mips@oss.sgi.com
Quinn Jensen wrote:
> 
> >> Is anyone else having trouble with NFS root on
> >> the 2.4.0 kernel?  It won't come up with the
> >> KSEG0 cache on unless I pepper the network driver
> >> with flush calls.
> >
> >
> > That's expected for most old network drivers that don't yet use the
> > new PCI DMA API documented in Documentation/DMA-mapping.txt.
> >
> > What driver is this?
> 
> Both the stock 2.4.0 tulip and eepro100 drivers.  The
> problem doesn't happen when I go back to 2.3.99pre8.
> 

Quinn,

Did you set rx_copybreak to 1518?  I sent patches long time ago to the driver
authors for MIPS, but I am not sure they are not there.

Jun

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