Re: 2.6.0 NFS-server low to 0 performance

[Guennadi Liakhovetski]

On Wed, 7 Jan 2004, Mike Fedyk wrote:

> Just post a few samples of the lines that differ.  Any files should be sent
> off-list.

Ok, This is the problem:

10:38:30.867306 0:40:f4:23:ac:91 0:50:bf:a4:59:71 ip 590: tuxscreen.grange > poirot.grange: icmp: ip reassembly time exceeded [tos 0xc0]

A similar effect was reported in 1999 with kernel 2.3.13, also between 2
100mbps cards. It also was occurring with UDP NFS:

http://www.ussg.iu.edu/hypermail/linux/net/9908.2/0039.html

But there were no answers, so, I am CC-ing Sam, hoping to hear, if he's
found the reason and a cure for his problem. Apart from this message I
didn't find any other relevant hits with Google.

Is it some physical network problem, which somehow only becomes visible
under 2.6 now, with UDP (NFS) with 100mbps?

Guennadi
---
Guennadi Liakhovetski

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