topic Re: X lockup in Operating System - HP-UX

X lockup

Adam Juntunen — Tue, 19 Nov 2002 16:23:33 GMT

Hi guys,
we have about 25 C3600 boxes running hpux 11.0 Every once in a while, the screen saver will lockup one of our systems. a top will show "X" and "dtserver" taking all system resources %40 on one, %60 on the other. The screen is black and the user can move the cursor, but otherwise no response to mouse or keyboard.

any ideas?

I looked for patches for X server and screen saver, but didn't find anything.

we have the following path bundles on each system

XSWHWCR1100 B.11.00.51.2 HP-UX Hardware Enablement and Critical Patches, December 2000

QPK1100 B.11.00.54.7 Quality Pack for HP-UX 11.00, September 2001

HWE1100 B.11.00.0112.7 Hardware Enablement Patches for HP-UX 11.00, December 2001

Re: X lockup

Shannon Petry — Tue, 19 Nov 2002 16:27:46 GMT

What application are you running when CDE(X) Locks up? There is known problems with certain CAD/CAM applications which I'll keep nameless for now.

Regards,
Shannon

Re: X lockup

Alex Glennie — Tue, 19 Nov 2002 16:44:30 GMT

dtserver ? .... or are we actually talking rpc.ttdbserver by any chance as opposed to dtscreen ?

if this is actually the case simply disable rpc.ttdbserver aka tooltalk daemon in /etc/inetd.conf

#rpc xti tcp swait root /usr/dt/bin/rpc.ttdbserver 100083 1
/usr/dt/bin/rpc.ttdbserver

Restart the internet daemon with:
inetd -c

this is a known issue and the work-around is recommended !

if it's actually dtscreen eating cpu only cause I can think is you have users running CDE remotely using pc's or xterminals and running a screen saver down your network transferring 100 of pixel / screen redraws per sec ... not a good idea.

Re: X lockup

Adam Juntunen — Tue, 19 Nov 2002 16:57:41 GMT

Thanks for replies

yeah, we're running pro/E and pro/Intralink. Then when they leave their desk and the screensaver kicks in, it locks everything up. I have to reboot and that fixes everything. Anything we can do about it if it's the CAD software?

Also, I'm saying dtserver and X from what I remember - I know it was dt something, probably dtscreen now that I think about it. I'll have to wait a few days until it happens again to get the actual process name - DOH

I did a grep for ttdbserver and it's running, so I can try disabling it, but I know that wasn't the process taking a lot of cpu.

I know they are running on their own workstation and no one is remotely logged in and exporting a display or using an xterm.

adam

Re: X lockup

Shannon Petry — Tue, 19 Nov 2002 17:00:01 GMT

Pro/E does not have any problems with CDE that I know of, so I'd say to look at what Alex recommended.

Also, make sure your up to date on all performance related patches for CDE and X.

QRM1100 Release October 2002 and HWE1100 Release October 2002 should give you all the current CDE and X patches for bugs and performance.

Regards,
Shannon