Fwd: swarm-directory-objc-remove bug

[Sven N. Thommesen]

I am repeating this message which I sent out yesterday; evidently my 
outgoing mail server (home.com) was having problems.

> Date: Mon, 13 Nov 2000 23:54:21 -0600
> To: address@hidden
> From: "Sven N. Thommesen" <address@hidden>
> Subject: swarm-directory-objc-remove bug
>
>
> Attention all Swarmers: here's the solution to a bug whose error message 
> is rather cryptic:
>
> I have been chasing a bug in a java Swarm simulation for a while. The 
> symptom was that the program would crash with the following error message: 
> "directory.m:188 swarm_directory_objc_remove".
>
> According to Marcus, this looks like I'm trying to remove an object that's 
> not there anymore.
>
> As it turns out, the underlying problem appears to be that the jvm was 
> running out of memory! My objects were all collecting history information, 
> and when my program reached a size of about 75MB (as reported by 'top') 
> the error occurred.
>
> Adding the switch "-Xmx100m" to the last line in the "javaswarm" script 
> allowed the same program to run until top reported a size of about 106MB 
> before it crashed with the same error message.
>
> I'm using jdk1.3 under RedHat 6.1. Use "man java" to read more about 
> runtime switches to java.
>
> Cheers,
> Sven Thommesen


                 ==================================
  Swarm-Support is for discussion of the technical details of the day
  to day usage of Swarm.  For list administration needs (esp.
  [un]subscribing), please send a message to <address@hidden>
  with "help" in the body of the message.