I've found that when increasing the sky2 interface MTU beyond somewhere around 6000-7500, packets can get truncated. The interface is the internal interface on a NAT router - I've been able to reproduce this with 2.6.16 and 2.6.17-rc4 when say sending an email from gmail (via the web interface). Hardware: sky2 v1.3 addr 0xdfbfc000 irq 169 Yukon-EC (0xb6) rev 1 Symptoms: # ifconfig lan0 mtu 7500 # tcpdump -ni lan0 08:38:13.595118 IP truncated-ip - 100 bytes missing! 192.168.0.3.1552
213.160.98.138.554: . 2700848741:2700850201(1460) ack 1729330122 win
64883 (then sending from gmail hangs) Let me know if you need a more specific reproducer (eg a particular URL); I can test changes too. -- Daniel J Blueman - : send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
