Regression: fxp0: device timeout - SCB timeout: 0x70 0x0 0x80 0x0

This seems to be a regression.

On FreeBSD 8.0-BETA2 ia64 after a recent buildworld I get:

fxp0: device timeout

with lines similar to these:
 
fxp0: SCB timeout: 0x70 0x0 0x80 0x0
fxp0: SCB timeout: 0x70 0x0 0x80 0x400
fxp0: SCB timeout: 0xf0 0x0 0x80 0x400

The cable seems to be in place, no change happend there.

All my local network is unreachable!

from dmesg:

fxp0: <Intel 82550 Pro/100 Ethernet> port 0xd00-0xd3f mem 0x80020000-0x80020fff,0x80000000-0x8001ffff irq 20 at device 3.0 on pci0
miibus0: <MII bus> on fxp0
fxp0: Ethernet address: xx:xx:xx:xx:xx:xx
fxp0: [ITHREAD]


% ifconfig fxp0
fxp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=219b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,WOL_MAGIC>
        ether xx:xx:xx:xx:xx:xx
        inet 10.10.10.31 netmask 0xffffff00 broadcast 10.10.10.255
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active
%

This problem appears in archives from time to time since FBSD 4.x.
But nothing that helps me.
 
What am I to do?

-- 
Anton Shterenlikht
Room 2.6, Queen's Building
Mech Eng Dept
Bristol University
University Walk, Bristol BS8 1TR, UK
Tel: +44 (0)117 928 8233 
Fax: +44 (0)117 929 4423