From: Gennady <gfb@...>
Date: 2004-01-15T17:18:17+09:00
Subject: Re: Stack level too deep (SystemStackError)


On Jan 14, 2004, at 23:31, Jesper Olsen wrote:

> Gennady <gfb@tonesoft.com> wrote in message 
> news:<4005BB60.70009@tonesoft.com>...
>> Jesper Olsen wrote:
>>> I have a program where I'm getting a Stack level too deep 
>>> (SystemStackError)
>>> exception
>>>
>>> I did not expect this, and I would prefer to fix it by increasing the
>>> stack, rather than changing the program...
>>>
>>> Is this possible?
>>> I think this exception is quite common, but was not able to google a
>>> solution.
>>>
>>> Jesper
>>>
>>> --
>>> http://JesperOlsen.Net
>>>
>> What's your OS? BTW, it is a known issue with Mac OS X where in most
>> cases you must increase the default stack size.
>
> How?

In bash, "ulimit -s" shows the current stack size in kbytes (defaults 
to 8192 in Mac OS X, really low). To change it issue "ulimit -s 
<kbytes>".

The command may be different for other shells. You may put this command 
in /etc/profile to be set every time a user logs in.

>
>>
>> Gennady.
>
> It happens both with
>
> - Ruby 1.6.8 on BSD Unix
> - Ruby 1.8.0 on Win2000

The above command will work for BSD Unix too. I do not know how to do 
it for Win2000.

Are you sure that there's no actual problem with your program? It may 
really be run-away in recursion, so increasing the stack size will only 
make the problem happen somewhat later.

>
>
> Jesper
>
>

Sincerely,
Gennady Bystritsky