[netdrivers] Truncated received packets with 4-port D-LinkDFE-580TX and sundance driver

[Mark Cave-Ayland]

> -----Original Message-----
> From: netdrivers-bounces at scyld.com 
> [mailto:netdrivers-bounces at scyld.com] On Behalf Of Michael Gellman
> Sent: 06 July 2005 17:48
> To: netdrivers at scyld.com
> Subject: [netdrivers] Truncated received packets with 4-port 
> D-LinkDFE-580TX and sundance driver
> 
> 
> Hello:
> 
> I have a set of machines using the 4-port D-Link DFE-580TX 
> networking cards using the sundance networking driver under a 
> vanilla linux kernel version 2.4.29.
> 
> I am doing some work at the routing layer of the kernel, and 
> am having a problem that occasionally the received packet is 
> shorter than the transmitted packet. Using tcpdump at both 
> ends of a connection shows that the tail of the packet is 
> simply being chopped off. This is at very low sending rates (1Mb/s).
> 
> I searched through the archives, and even tried applying the 
> patch from this post, but with no success:
> 
> http://www.scyld.com/pipermail/netdrivers/2005-March/000130.html
> 
> If anyone has any ideas, I would really appreciate it. I 
> really can't get my work done until I fix this problem.
> 
> Thanks!
> 
> Michael Gellman


Hi Michael,

I'm still interested in getting these cards working but haven't had much
time to play. One thing you may like to try if you using an SMP kernel: I
think I remember seeing a post a while back that mentioned the problem went
away when using a uniprocessor kernel - if this is the case, would you be
able to try and report back?


Many thanks,

Mark.

------------------------
WebBased Ltd
17 Research Way
Tamar Science Park
Plymouth
PL6 8BT 

T: +44 (0)1752 797131
F: +44 (0)1752 791023
W: http://www.webbased.co.uk