[tulip-bug] Problems with kne111tx

Donald Becker becker@scyld.com
Sun, 19 Aug 2001 14:52:51 -0400 (EDT)

On Sun, 19 Aug 2001, Tom Parker wrote:

> I'm running a linux router/server off my cable modem, and I've been 
> having a little problem with it.  The two network cards in it are both 
> KNE111TX's, and it seems that if traffic flow goes anything higher than 
> about 100 kb/s (rough guess, figure may be higher, but the value is 
> significantly lower than what the 10mb network can do) that we get a 
> collision light on the hub, and also tcpdump reports my computer waiting 
> for a sequence number that the server does not ever give out until it 
> times out for the server to respond, with no luck. The first few packets 
> get through, but then everything messes up.

This looks like a duplex mismatch problem, although it could also be a
cable problem.

The following information is needed to track down the problem
  the output the card detection message (use 'dmesg')
  the error counts from /proc/net/dev
  the output of 'tulip-diag -a' while the card is experiencing problems.

> I'm using a 2.4.9 kernel (same problems earlier with both 2.4.4 and 
> 2.4.7). This did have the 0.9.5-pre16 tulip driver, and I'm now trying 

Donald Becker				becker@scyld.com
Scyld Computing Corporation		http://www.scyld.com
410 Severn Ave. Suite 210		Second Generation Beowulf Clusters
Annapolis MD 21403			410-990-9993