Apparent fxp regression in FreeBSD 8.4-RC3

[Charles Sprickman]

On May 24, 2013, at 1:47 AM, YongHyeon PYUN wrote:

> On Thu, May 23, 2013 at 09:49:19PM -0700, Jeremy Chadwick wrote:
>> 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 asked Mike to try backing out dhclient(8) change(r247336) but it
> seems he missed that. Jeremy, could you try that?

I have a system up and running and showing the problem (that was
non-trival, just for the record - one machine blew the PSU after
POST, the other refused to boot off an IDE drive, and then required
two CD-ROM drives before I found a functional one, and it took a
good half-hour to find what's apparently the last piece of writable
CD-R media I own).

I am not awesome with svn, but I'll see if I can manually undo
r247336 and give it a spin.

Charles

> 
> I guess dhclient(8) does not like flow-control negotiation of
> fxp(4) after link establishment.
> 
>> 
>> 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
> _______________________________________________
> freebsd-stable at freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-stable
> To unsubscribe, send any mail to "freebsd-stable-unsubscribe at freebsd.org"