topic Re: XTerm Hangs in Operating System - HP-UX

XTerm Hangs

Michael Peddycord — Tue, 01 Oct 2002 16:57:57 GMT

We have 6 XTerms booting off of 2 different servers. Every once in a while (more often lately) the XTerms will just hang and need to be rebooted. Users who are using an XTerm package from windows workstations do not have this problem. Does anyone have a suggestion on this?

Thanks

Re: XTerm Hangs

harry d brown jr — Tue, 01 Oct 2002 17:37:59 GMT

What kind of xterms?

What OS are the servers running?

When was the last time the servers were patched?

Are the PC's and Xterms on the same network?

And when the xterms hang, what actually happens? Do window's disappear?

live free or die
harry

Re: XTerm Hangs

Michael Elleby III_1 — Tue, 01 Oct 2002 17:41:40 GMT

Hello-

I'm thinking at the moment that something may be going on with initialzation tables (i.e. /etc/inittab) and/or an issue with your device files may exist...

Firstly, kill any processes associated with the xterm and issue an 'init q' to force init to update the initialization tables..

If that does not cure the ill, confirm that the character device files being used hae appropriate permissions (i.e. 622)..

Mike-

Re: XTerm Hangs

Michael Peddycord — Tue, 01 Oct 2002 18:13:09 GMT

xterms are NCD NC9000 basically diskless workstations.

Servers are running 11.0

Servers have HWE 0602 applied as of August 2002

PC's and Xterms are all on the same subnet.

When the xterms hang, we don't lose windows or anything like that, we lose the keyboard and mouse functionality. We can only do a hard boot to get the Xterms back up and running.

Re: XTerm Hangs

A. Clay Stephenson — Tue, 01 Oct 2002 18:31:41 GMT

Let me first preface this by saying that NCD Xterms don't know me but if they are like most Xterms then they must have access to an NFS mount to function (unlike the PC Emulators). I would look at your NFS links and use nfsstat to look for any abnormal statuses.

Re: XTerm Hangs

Alex Glennie — Wed, 02 Oct 2002 06:30:29 GMT

NC900's ? what version of NCBridge s/w are you using vers 4. ??

a) First off interogate the NC's console window for related errors : select console from the client launcher.

b) check users $HOME/.dt/errorlogs

c) check in /var/dt/Xerrors

d) at the time of the next disconnect : attempt to ping and nslookup the NC's hostname & ip address on the hpux systems.

This sounds like DNS or similar has problems and is causing the xsessions to disconnect.

other things to check : ensure you have the latest NCD patches installed on top of the latest NCD s/w see http://www.ncd.com/support/docs.html

ps NC900's and I have met I have one close by.

Re: XTerm Hangs

Aaron Longfield — Fri, 23 May 2003 18:02:32 GMT

I am having this exact same problem. Five xterms (four NCD NC900's and one HP) are on several different pieces of network equipment and logging into a HP D380. They intermittently hang, and they will *all* hang simultaneously. It doesn't effect anything other than the xtubes.

Did you figure anything about about this, or maybe someone else?

Thanks,
-Aaron

Re: XTerm Hangs

Steven E. Protter — Fri, 23 May 2003 21:59:22 GMT

These NCD's are a pain. We have one but haven't had time to get it to work properly. The support from the vendor isn't all that good.

That being said, you must have the bridge software and decide what protocol to use. Obviously, inetd.conf must be configured to allow the protocol. Since you've done that you need to look at the following areas to hope.

The NIC card on these boxes or the HP-9000 could be an issue along with switch port setting. HP's can't stand autonegotiate on the switch.

You need to check the setting on the switch port versus what the NCD's actually expect.

Have your switch admin check the ports for errors and report back.

If inetd logging is set to -l for extra logging, you should see connects and maybe even errors in /var/adm/syslog/syslog.log

SEP