Apparent fxp regression in FreeBSD 8.4-RC3

[Jeremy Chadwick]

On Thu, May 23, 2013 at 09:40:35PM -0700, Jeremy Chadwick wrote:
> On Thu, May 23, 2013 at 11:42:44PM -0400, Glen Barber wrote:
> > On Thu, May 23, 2013 at 08:38:06PM -0700, Jeremy Chadwick wrote:
> > > If someone wants me to test DHCP via fxp(4) on the above system (I can
> > > do so with both NICs), just let me know; it should only take me half an
> > > hour or so.
> > > 
> > > I'll politely wait for someone to say "please do so" else won't bother.
> > > 
> > 
> > For the sake of completeness...
> > 
> > "Please do so."  :)
> 
> Issue reproduced 100% reliably, even within sysinstall.
>
> {snip} 

Forgot to add:

This issue ONLY happens when using DHCP.

Statically assigning the IP address works fine; fxp0 goes down once,
up once, then stays up indefinitely.

I also tested network I/O in the statically-assigned scenario.  Pinging
the box from another machine on the LAN:

$ ping 192.168.1.192
PING 192.168.1.192 (192.168.1.192): 56 data bytes
64 bytes from 192.168.1.192: icmp_seq=0 ttl=64 time=0.180 ms
64 bytes from 192.168.1.192: icmp_seq=1 ttl=64 time=0.138 ms
64 bytes from 192.168.1.192: icmp_seq=2 ttl=64 time=0.214 ms
64 bytes from 192.168.1.192: icmp_seq=3 ttl=64 time=0.165 ms
64 bytes from 192.168.1.192: icmp_seq=4 ttl=64 time=0.114 ms
^C
--- 192.168.1.192 ping statistics ---
5 packets transmitted, 5 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 0.114/0.162/0.214/0.034 ms

-- 
| Jeremy Chadwick                                   jdc at koitsu.org |
| UNIX Systems Administrator                http://jdc.koitsu.org/ |
| Mountain View, CA, US                                            |
| Making life hard for others since 1977.             PGP 4BD6C0CB |