Clients get disconnected / Server hangs

From: Dirk Wagner (usenet_at_diwasoft.de)
Date: 09/01/04 

Date: Wed, 1 Sep 2004 10:00:19 +0200

Hi there,

I set up a Samba 3. Server on a SUSE 9.1 box, working as a PDC.
There are Win9X and Win2K Clients connecting to the server, but the
following problem apears also if only WinXP clients are connected

At a certain time (has been at 1 to 48 hours of uptime), the clients
loose connection to the server.
At this point, it is not possible to log into the server on a new
terminal window, but running processes are still running and reacting.
Shuting down the server by software is NOT possible.

It seems that the problem is caused by saving Data to a network share,
but this could also be only the point where the allready existing
problem occours...

I disconnected the server from the network to see, if some odd traffic
is causing the problem - but no change in bahavior.

tcpdump shows also nothing striking.

top -i shows 25 entries with smbd:

6065 root 0 8980 3296 7468 D 0.0 0.0 0:00.00 smbd
...
6078 root 0 8980 3296 7468 D 0.0 0.0 0:00.00 smbd

24 times with user root and one time with an other user (the one who
mentioned the disconnection first)
all the entries were looking like shown above.

At this point, I can end top and tcpdump but halt shows no reaction...
So I have to reboot the server by cuting the power-cord...

DNS is running on an external server, WINS is running on the
Samba-Server.

I already changed the NIC in the server (from Realtek to 3Com) and did
the same at all Win2K clients.
I changed the patch cables and also the switch.
After dooing so, the system was running fine for a longer time, but
finaly failed also. In the meantime the behavoir is the same as
before...

Any ideas?

Thanks

Dirk

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