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To: Jacques Beigbeder <Jacques.Beigbeder@ens.fr>
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From: Lowell Gilbert <freebsd-questions-local@be-well.ilk.org>
Date: 05 Jan 2006 10:12:59 -0500
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Cc: freebsd questions <freebsd-questions@freebsd.org>
Subject: Re: Soekris Net4801 + sis DP83816A
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Jacques Beigbeder <Jacques.Beigbeder@ens.fr> writes:

> Hardware: Sokeris Net4801
> I boot using PXE and it hangs at the end.
> Here some lines of the boot:
> 
>    FreeBSD 5.4-RELEASE #0: Wed Jan  4 15:31:04 UTC 2006
>    [ ... ]
>    sis0: <NatSemi DP8381[56] 10/100BaseTX> port 0xe100-0xe1ff mem 0xa0000000-0xa0000fff irq 10 at device 6.0 on pci0
>    sis0: Silicon Revision: DP83816A
>    [ ... ]
>    Sending DHCP Discover packet from interface sis0 (00:00:24:c4:ee:c4)
>    ...
>    DHCP/BOOTP timeout for server 255.255.255.255
> 
> Here it hangs! Next step would be to mount / using NFS.
> 
> Another element: as soon as my kernel recognizes "sis0 ... DP83816A",
> the link on my Ethernet switch turns off.
> 
> Is it a problem of the 'sis' driver?

Quite possible.  Does this happen under 6.0 also?