Re: [Jython-dev] [Fwd: installation problem]

[Ype K. <yk...@xs...>]

Gerhard,
...
>then the first problem was gone but I ran into the next
>when I started the simple example program
>
>Maybe you can help me once more
>thank you
>gerhard
>
>
>gerhard@darkstar:~/work/prog/jython > jython Demo/awt/simple.py
>SIGSEGV   11*  segmentation violation
>        stackbase=0xbffff150, stackpointer=0xbfffefc4
>
>Full thread dump:
>    "Finalizer thread" (TID:0x40596210, sys_thread_t:0x412dae0c,
>state:R) prio=1
...

It looks like the java VM crashes during garbage collection, more
precisely: during finalization.

The first time you run jython after installation it
needs more memory because it initializes a package for each
jar file it finds. Increase memory and try again: use java -help
adapt the jython script.

As you are using a Pentium II and the default Suse JVM
the following may not apply:

I had the SIGSEGV problem using the blackdown JVM's on ppc, iirc
both versions 1.1.8 and 1.2.2
1.3 crashes in a more 'friendly' way: it gives up with an
out of memory error.

All this happens with the default 30Mb, but also with 160Mb of
memory.

Unfortunately the problem persists under 1.3: running a simple
python program can make the JVM give up quite regularly, but
in a seemingly random way, independent of the amount of memory
used.
I reported the problem to blackdown some time ago (for 1.2.2)
but I had no reaction. Since upgrading the 1.3 helps only a bit
I am considering moving to other hardware.

Please note that all this is on ppc. I have not heard of
similar problems on x86.

Good luck,
Ype

P.S. You might consider using the jython-user list for similar situations.