Bug with telnetd?

[Alain St-Denis]

We encountered a strange problem. A bunch of users (~20) logged in using telnet
(in fact, they logged in through CDCNET (don't ask why...)). At some point
the machine would freeze and print the following message on the console (many
times):

Bufcall: could not allocate stream event.

And everything would be back to normal a minute later. It seemed to us that
the only users who froze were those connected through telnetd. I was
connected with rlogind and I wasn't aware of any problem until someone told
me. 

Would there be a problem with the way telnetd handles ptys? Or am I asking a
stupid question? Is there a kernel parameter that can fix that. If it's a bug,
is there a fix?

Thanks,
-- 
Alain St-Denis
Centre informatique de Dorval
Environnement Canada
astdenis at cid.aes.doe.CA
(514) 421-4697