[Samba] 2.2.7a breaks on ATM stack on AIX 4.3

[Charles Bueche]

Hi all,

we have a very large customer (90'000 PCs) worldwide that has problems
with a Samba server. Here are the details :

platform : IBM 4-cpu server runing AIX 4.3
Samba    : 2.2.7a compiled with gcc 2.95.3
clients  : about 100-200, worldwide
network  : ATM, at least for the server (I don't have more details, sorry)
samba config : pretty straightforward, security=server (might be changed
to "domain" soon), a few shares, etc.

The problem appeared since clents migrated to Windows XP. About every 2
days, the network receive queue overflow, causing an ATM adapter interface
reset. All clients loose their connections (and their unsaved job BTW).

The symptom is visible with netstat -a :

==============================================================
Number of Rcv Buffer on ATM adapter 2207 <== Tendency to grow
Rcv Q size last entry               280  <== Tendency to grow
Number of connections to PDC        116
Number of samba procs (os)          118
Number of samba client sessions     159
==============================================================

We are more knowledgeable on Solaris and linux, AIX and ATM debugging is
somewhat unknown to us.

Could someone confirm this behavior ?
Would you direct our search to Samba or ATM ?
Has anyone experienced the same problem ?
Or even a fix...

in short : any hint welcome.

Thanks and best regards,
Charles

-- 
Charles Bueche <bueche at netnea.com>
www.netnea.com : your best source for ultra-geeks !