On Sun, Jan 30, 2005 at 03:34:49PM +0000, Russell King wrote:

I think the case against the IPv4 fragmentation code is mounting.
However, without knowing what the expected conditions for this code,
(eg, are skbs on the fraglist supposed to have NULL skb->dst?) I'm
unable to progress this any further.  However, I think it's quite
clear that there is something bad going on here.

Interesting...the gateway which exhibits the problem fastest in my
area does have a large number of fragmented UDP packets running through it,
as shown by tcpdump 'ip[6:2] & 0x1fff != 0'.

Why many more people aren't seeing this I've no idea.

Perhaps you (and I) experience more fragments than the average user???

Nice detective work!

Phil