On Sat, Jul 23, 2005 at 10:34:42AM +0200, dvd wrote:
> hme1: status=3000400<MAXPKTERR,HOSTTOTX,TXALL>
> hme1: status=400<MAXPKTERR>     "about 20 of these messages"

Look at src/sys/dev/ic/hmereg.h:

#define HME_SEB_STAT_MAXPKTERR  0x00000400      /* max-packet size error */

You are recieving packets, that are too big for the hme card. This is just
something the hardware tells the driver about, as it dropped the packet
and wants to give a chance to increaese error counters.

I've never seen this in regular operations, so either your card, your cabling
or your switch might be broken.

Martin