Re: em(4) problems.

From: Andre Oppermann (andre_at_freebsd.org)
Date: 05/06/04

  • Next message: John Polstra: "Re: em(4) problems." 
    Date: Thu, 06 May 2004 22:23:19 +0200
To: Søren Schmidt <sos@DeepCore.dk>, freebsd-net@freebsd.org, freebsd-current@freebsd.org, John Polstra <jdp@polstra.com>

    Andre Oppermann wrote:
    >
    > Søren Schmidt wrote:
    > >
    > > Andre Oppermann wrote:
    > > > Søren Schmidt wrote:
    > > >
    > > >>Petri Helenius wrote:
    > > >>
    > > >>>I´m highly confident that this is a case of integrated "CSA" ethernet
    > > >>>with broken BIOS. I suspect you get an message about that when booting.
    > > >>
    > > >>Nope. no messages to that effect, oh and it works in windows(tm)...
    > > >>
    > > >>The last thing I see if I try to use em0 is:
    > > >>em0: Link is up 100 Mbps Full Duplex
    > > >>and then the system locks up hard.
    > > >
    > > > What MIIPHY does the card have?
    > >
    > > No idea, builtin of sorts, there is no mention of it in the probe, and
    > > no HW to see on the boards. I have two different boards with these on
    > > them both show the problem...
    >
    > There must be some sort of MII message in dmesg.

    I'm wrong. em uses built in PHYs indeed. Which also means link_state
    doesn't work there...

    Check out the function em_local_timer() in sys/dev/em/if_em.c and maybe
    you get some more insight by enabling if debugging or putting some
    printf's in there. What makes me a little bit wondering is the direct
    use of printf() instead of dev_printf(). I don't know what the locking
    implications are if any. 

    -- 
Andre
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