High load - lost network

[Christer Solskogen]

I have a server with a em interface. Whenever the server has a high load
(compiling world for instance) the network connectivity is lost.

dmesg tells me this:
em0: link state changed to DOWN
em0: link state changed to UP
em0: link state changed to DOWN
em0: link state changed to UP
em0: link state changed to DOWN
em0: link state changed to UP
em0: link state changed to DOWN
em0: link state changed to UP
em0: link state changed to DOWN
em0: link state changed to UP

Do anyone have a tips for how to workaround this or is the server just junk?

The server is running FreeBSD 7.0 (i386) with latest patches from
freebsd-update.

-- 
chs