netdev - Re: Realtek 8169 problems with net booting

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Message-ID: <20081129224740.GU28946@ZenIV.linux.org.uk>
Date:	Sat, 29 Nov 2008 22:47:40 +0000
From:	Al Viro <viro@...IV.linux.org.uk>
To:	Francois Romieu <romieu@...zoreil.com>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>, netdev@...r.kernel.org
Subject: Re: Realtek 8169 problems with net booting

On Sat, Nov 29, 2008 at 10:28:30PM +0100, Francois Romieu wrote:
> Al Viro <viro@...IV.linux.org.uk> :
> [...]
> > Other symptoms: it kept trying to renegotiate the link every few seconds.
> 
> [...]
> > Hang used to happen on the first incoming packet after boot, _but_ that
> > didn't happen on each boot.
> 
> Ok, it is consistent with a dma at (more or less) random location.
> 
> Thanks for the report Al.
> 
> Can you send the "XID" line printed by the driver on recent kernels so
> that I can figure the specific version of the chipset / PHY ?

Interesting...

Working one -
eth0: RTL8110s at 0xffffc200008b6000, 00:01:80:50:a2:f1, XID 04000000 IRQ 23
B0rken -
eth0: RTL8169s at 0xffffc2000017c000, 00:01:80:4d:0b:3b, XID 00800000 IRQ 23

Note: that's from the logs - I won't get around to testing that stuff until
tomorrow afternoon.
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