> >The mark_bh is already there. it sounds ot me like you are changing timing > >patterns by causing a cpu stall on the memory bus > > No, its not. The mark_bh is already there. Its in netif_rx. You are causing additional delays by causing a stall on the memory bus with the mark_bh. > 1) Set up a box with an eepro100 as a second card and modify the driver by > simply replacing netif_rx() with kfree_skb(). My system is a 200Mhz Pentium You've changed the timing patterns. Alan - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org