Re: [Ltsp-discuss] Java Plug-In error with Netscape 6.2 as LOCAL_APP

[Jim M. <ja...@mc...>]

Enrique,

One of the tricks I use when tracking down local app problems is
to use the 'strace' program.  It will trace all of the system calls
made by the app, and it might shed some light on the problem.

When you launch the app, use strace to launch it, and write the output
file to someplace that the workstation has write permission,
such as the /var/opt/ltsp/swapfiles directory.

For example:

  strace -f -o /tmp/swapfiles/strace.out  {your app here}

That will run your app, while tracing system calls and putting
the trace output in the swapfiles directory.

Then, when it craps out, go take a look at the strace.out file, probably
near the end, you should see lots (tons) of information about what the
program was doing.

Hope that helps,

Jim McQuillan
ja...@lt...




Enrique Rodriguez wrote:

>Hi,
>
>I'm running Netscape 6.2 with Java Plug-In 1.3 as a Local_App on Redhat
>7.2 with LTSP 3.0.  Browsing works great except, when I go to web pages
>running Java applets, the browser window disappears and the following
>error is left in the shell window:
>
>"
>INTERNAL ERROR on Browser End:  Listen on server socket failed
>System error?:: Invalid argument
>"
>
>Nothing is left in server:/var/log/messages or
>ws001:/tmp/var/log/XFree86.0.log at the time of the error.
>
>The Netscape 6.2/Java Plug-In combo works great on ws001 and :0 when
>executed as a regular LTSP app.  I'm trying to set this up as a
>Local_App to distribute the CPU/RAM overhead of some Java apps we have.
>I briefly tried Java with other browsers but Netscape 6.2/Java worked
>out of the box on :0 so I went with it.
>
>Any hints - log files I missed, etc.?  Any one have any luck running a
>JRE as a Local_App?  I may try removing the plug-in and getting a
>Local_App JRE running.
>
>-enrique
>
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