em(4) on FreeBSD is sometimes annoying

Jack Vogel jfvogel at gmail.com
Mon Aug 11 16:28:02 UTC 2008

On Mon, Aug 11, 2008 at 7:02 AM, Jeremy Chadwick <koitsu at freebsd.org> wrote:
> On Mon, Aug 11, 2008 at 08:19:46AM +0000, Josh Paetzel wrote:
>> On Friday 08 August 2008 06:31:24 pm Jack Vogel wrote:
>> > OK, I just got access to a machine, am going to install and see if I
>> > can repro this
>> > this afternoon.
>> >
>> > Jack
>> For what it's worth, I have a T60 that dual boots 6.3-R/amd64 and 7.0-R/i386
>> and neither install has this problem.  I can cold boot it with the NIC
>> unplugged, plug in a cable, I get a link light and ifconfig em0 goes to
>> active, dhclient em0 gets an IP successfully.
> As promised, I tested said issue out on my T60p (widescreen) tonight,
> using both FreeBSD 7.0-STABLE and 7.0-RELEASE.
> I wasn't able to reproduce the issue; so my experience was the same as
> Josh.  I can also boot it with the CAT5 inserted, dhclient fetch an IP,
> no LED oddities -- then yank the cable (LED and link light go off),
> re-insert the cable, and within a moment or so dhclient again gets an
> IP.
> I'm left wondering if maybe there's an EEPROM setting that's doing this
> (purely speculative on my part), or possibly some odd BIOS quirk.  My
> T60p (widescreen) is running BIOS 1.14.  It's worth noting that the
> non-widescreen T60p uses a different BIOS.

Cool, it turned out that the laptop I was told I could use was an X61 and it had
an ICH8 NIC rather than 82573 anyway, they were supposed to get me one
today but given the two of you have already gone thru this verification I see
little point in doing the same.

Seems possibly a BIOS thing, if not that bad cable, bad link partner maybe??


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