Hardlock with alc0 device

[Kris Moore]

I'm running into a rather interesting problem here on HEAD with a newer Asus
EEE PC and the "alc" network driver. The device works great when a
cable is plugged in, no issues at all. However, if I unplug the ethernet
and reboot then I get a hard-lock when it tries to bring up the device.

I disabled ifconfig_alc0="DHCP" in rc.conf, and now the system boots
normally, but just for kicks I tried running "dhclient alc0" on it
manually, and sure enough it resulted in another system lockup. (No kern dump,
doesn't even get that far)

Here's some information about the system / device, let me know if there
is any other data / commands I should run and send over. 


FreeBSD mininova 9.0-CURRENT FreeBSD 9.0-CURRENT #14: Sat Oct 23 13:11:00 PDT 2010

alc0 at pci0:1:0:0:        class=0x020000 card=0x838a1043 chip=0x10621969 rev=0xc0 hdr=0x00
    vendor     = 'Attansic (Now owned by Atheros)'
    device     = 'Atheros AR8132 PCI-E Fast Ethernet Controller (AR8132)'
    class      = network
    subclass   = ethernet


alc0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=c3198<VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,WOL_MCAST,WOL_MAGIC,VLAN_HWTSO,LINKSTATE>
        ether 20:cf:30:1e:b2:38
        media: Ethernet autoselect

-- 
Kris Moore
PC-BSD Software