Date: Fri, 24 May 2013 14:47:20 +0900 From: YongHyeon PYUN <pyunyh@gmail.com> To: Jeremy Chadwick <jdc@koitsu.org> Cc: Glen Barber <gjb@freebsd.org>, freebsd-stable@freebsd.org, FreeBSD Release Engineering Team <re@freebsd.org> Subject: Re: Apparent fxp regression in FreeBSD 8.4-RC3 Message-ID: <20130524054720.GA1496@michelle.cdnetworks.com> In-Reply-To: <20130524044919.GA41292@icarus.home.lan> References: <alpine.BSF.2.00.1305161103370.1222@familysquires.net> <alpine.BSF.2.00.1305232013110.14717@familysquires.net> <20130524010943.GA37252@icarus.home.lan> <20130524012117.GE1672@glenbarber.us> <20130524030351.GA39091@icarus.home.lan> <20130524031303.GC28865@glenbarber.us> <20130524033806.GA39720@icarus.home.lan> <20130524034244.GD28865@glenbarber.us> <20130524044035.GA40957@icarus.home.lan> <20130524044919.GA41292@icarus.home.lan>
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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 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
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