DescOwn should not be set, thus allowing the chip to use the descriptor, before everything else is set up correctly. Signed-off-by: Risto Suominen --- The testing is done on kernel version 2.6.18. --- drivers/net/tulip/de2104x.c.org 2006-09-20 06:42:06.000000000 +0300 +++ drivers/net/tulip/de2104x.c 2009-02-07 15:04:04.000000000 +0200 @@ -465,13 +465,14 @@ static void de_rx (struct de_private *de drop = 1; rx_next: - de->rx_ring[rx_tail].opts1 = cpu_to_le32(DescOwn); if (rx_tail == (DE_RX_RING_SIZE - 1)) de->rx_ring[rx_tail].opts2 = cpu_to_le32(RingEnd | de->rx_buf_sz); else de->rx_ring[rx_tail].opts2 = cpu_to_le32(de->rx_buf_sz); de->rx_ring[rx_tail].addr1 = cpu_to_le32(mapping); + wmb(); + de->rx_ring[rx_tail].opts1 = cpu_to_le32(DescOwn); rx_tail = NEXT_RX(rx_tail); }