[Bug 229727] On install, Broadcom chipset doesn't receive DHCPOFFER

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=229727

--- Comment #16 from Stephan Neuhaus <sten at artdecode.de> ---
Replying to comment #15

Yep, you're right, no DHCPOFFER seen by the NIC.

Here is what I see. (Possibility of slight typos as I'm typing this by hand.)
One thing I find odd is that the interface has the SIMPLEX flag initially and
keeps that flag even after attempting DHCP.

# dmesg | grep bge0
bge0: <Broadcom NetXtreme Fast Ethernet Controller, ASIC rev. 0x5784100> mem
0xd310ffff at device 0.0 on pci3
bge0: CHIP ID 0x5784100; ASIC REV 0x5784; CHIP REV 0x57841; PCI-E
miibus0: <MII bus> on bge0
bge0: Using defaults for TSO: 65518/35/2048
bge0: Eyjernet address: c8:bc:c8:a4:f3:30
# ifconfig bge0
bge0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
       
options=c019b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,VLAN_HWTSO,LINKSTATE>
        ether c8:bc:c8:a4:f3:30
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
# killall dhclient
No matching processes were found
# dhclient -b bge0
# tcpdump -npi bge0 udp port 67
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on bge0, link-type EN10MB (Ethernet), capture size 262144 bytes
0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from c8:bc:c8:a4:f3:30,
length 300
[ this repeats ]
^C
7 packets captured
7 packets received by filter
0 packets dropped by kernel
# ifconfig bge0
bge0: flags=8843<UP,BROADCAST,RUNNUNG,SIMPLEX,MULTICAST> metric 0 mtu 1500
       
options=c019b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,VLAN_HWTSO,LINKSTATE>
        inet 0.0.0.0 netmask 0xff000000 broadcast 255.255.255.255
        ether c8:bc:c8:a4:f3:30
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
        media: Ethernet autoselect (1000baseT <full-duplex>)
        status: active

A further "dmesg | grep bge0" yields many repetitions of these lines:

bge0: watchdog timeout -- resetting
bge0: link state changed to DOWN
bge0: link state changed to UP

Again, this laptop works fine when I install Debian on it, so it's very
unlikely to be the hardware. Do you have any ideas?

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