Re: [net] protecting interfaces from races between control and d

... and it's not just about "saturate the port" with traffic.

It's also about "what happens if I shut down the MAC whilst I'm in the
process of programming in new RX/TX descriptors?"

The ath(4) driver had a spectacular behaviour where if you mess things
up the wrong way it will quite happily DMA crap all over the memory of
your running system, leading to quite hilarious bugs.

-adrian
_______________________________________________
freebsd-current@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-current
To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org"