[ltp] Networking Problems with 770X

[Friedemann Baitinger]

I am experiencing similar problems which I have reported on this list a
while ago (you may want to check the mailing list archive for
reference). I haven't met anybody yet who is successfully running an IBM
EtherJet 10/100 cardbus adapter on a TP-770X. Just today I have tried to
get it going with linux-2.2.13 and pcmcia-3.1.3 and still always the
same problems. In your ping scenario below, please also look at the
sequence numbers. You will notice that you receive the replies out of
sequence (!). It surely is not a SuSE 6.2 specific problem. I suspect it
is somehow tied to the TP-770X. There are folks out there who have this
setup running on 770EDs and 600s.


On Thu, 28 Oct 1999 Zlatko.Baumberger@wdr.com wrote:

> Hi,
> 
> I'am running SuSE 6.2 on a ThinkPad 770X and i am using a 3Com 10/100 LAN 
> card (3ccfe575bt). 
> 
> I experienced big problems with programs using the network. After a while 
> it looks like the program hangs.
> 
> Then when I ping to another computer i have following pattern of response:
> 
> 64 bytes...time=0.400 ms
> 64 bytes...time=0.400 ms
> 64 bytes...time=0.400 ms
> 64 bytes...time=0.400 ms
> 64 bytes...time=5000.000 ms
> 64 bytes...time=4000.000 ms
> 64 bytes...time=3000.000 ms
> 64 bytes...time=2000.000 ms
> 64 bytes...time=0.400 ms
> 64 bytes...time=0.400 ms
> ....
> 
> When i use another pcmcia-card, the IBM 10/100 Etherjet cardbus the 
> response gets even bader:
> ....
> 64 bytes...time=0.400 ms
> 64 bytes...time=0.400 ms
> 64 bytes...time=0.400 ms
> 64 bytes...time=14000.000 ms
> 64 bytes...time=13000.000 ms
> ....
> 
> It looks like most messages take only .4 ms but every 5 to 10 seconds 
> messages are delayed.
> 
> I installed the new pcmcia 3.0.14 from the SuSE-webpage, but the problem 
> still exists.
> 
> Is there possibly somewhere a buffer-overflow in the network/pcmcia 
> drivers?
> 
> Has anybody an idea?

-- 
Friedemann Baitinger       fb@baiti.net      http://baiti.net/fb

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