OLPC "iperf hang" notes

[David Miller]

From: Mitch Bradley <wmb at firmworks.com>
Date: Wed, 28 Feb 2007 12:00:35 -1000

> I also used "ifconfig" and "netstat -s" to look for errors detected by 
> the network stack.  After each iperf run, the ifconfig "TX dropped" 
> number increased by 9

Looks like the retransmits on the sender side are being
dropped at the device.

I've never seen this behvaior reported by anybody, ever,
so this is increasingly looking like a driver/hardware
problem, not a TCP one.