Date: Mon, 4 Aug 2008 11:00:16 +0100 From: "Chris Rees" <utisoft@googlemail.com> To: Martin <nakal@web.de>, "Torfinn Ingolfsen" <torfinn.ingolfsen@broadpark.no> Cc: freebsd-stable@freebsd.org Subject: Re: em(4) on FreeBSD is sometimes annoying Message-ID: <b79ecaef0808040300x7d3e3d5bm9a4dfd77383a00e2@mail.gmail.com>
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Martin <nakal@web.de> wrote: > On Sat, 02 Aug 2008 12:55:53 +0200 > Torfinn Ingolfsen <torfinn.ingolfsen@broadpark.no> wrote: > >> Just to be sure: also if the first command you try on the interface is >> 'ifconfig up'? > > Hello Torfinn, > > good point, no. The problem appears when the first thing called on this > interface is dhclient (caused by ifconfig_em0="DHCP"). I could also > provoke this behavior after the interface was once up had an IP and was > working (ping). All I need to do is to disconnect the NIC from the > switch when I type "/etc/rc.d/netif restart". > > I have noticed further strange effects here. The behavior seems to > be even more complex. > > After I typed "/etc/rc.d/netif restart", I waited until I get "giving > up" message. Then I plugged the cable in. After about 30 seconds the > link LED was on. I noticed that at this point I couldn't get an address > using DHCP. > > So I disconnected physically the NIC (no cable) and link LED was > still on! ifconfig showed me "state: active" with no cable plugged in. > After further 30 seconds the LED went off. > > I attached the NIC again to the switch again and after 30 seconds > again I got some other effect. The link LED went on (status: active) > and the data LED was permanently blinking (about 2,5 times a second). I > pulled the cable again and now the link LED is still on and the data > LED still blinking (since about 10 minutes already). > > By the way... > Now I'm typing this E-Mail without an ethernet cable plugged in and the > link status LED is still on and the other data LED is blinking. > > -- > Martin > I may have misunderstood the purpose of this, but do you have the bpf compiled into your kernel? If you're having DHCP troubles, this could be a problem. Chris
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