Bug#673107: kirkwood: TCP checksum errors when using MTU 9000

[Damien Martins <doctor@makelofine.org>]

Hi,

As I'm not a TCP/IP guru (neither a good network admin), please find 
netowrk capture from Wireshark to analyze network traffic on TCP port 
5001 (which is used for iperf testing) on this URL :
https://www.makelofine.org/perso/debug/orion_full.pcap

log : debug
pass : 5c400a761e688

192.168.1.1 is my workstation, 192.168.1.3 is the Orion device (a QNAP 
TS-209 Pro 2)


Cordialement,
Damien Martins

Le 19/07/2012 13:24, Ben Hutchings a écrit :
> On Thu, 2012-07-19 at 10:43 +0200, Damien Martins wrote:
> > Same behaviour :/
> >
> > dmesg shows :
> [...]
>
> MTU of 9000 requires 4 contiguous pages of memory for each packet.  On a
> machine with only 256 MB of memory, that tends to be hard to find.  This
> is not a bug.
>
> Are the checksum errors gone?
>
> Ben.