[Gc] Fwd[2]: Re: Stack overflows, Ex: bdwg c SIGSEGV when stack size is exeeded

-------- Forwarded message --------
From: [email protected]
To: Ivan Maidanski <[email protected]>
Date: Thu, 10 Apr 2014 18:11:15 +0200
Subject: Re: Fwd: [Gc] Stack overflows, Ex: bdwgc SIGSEGV when stack size is exeeded


Am 10.04.2014 15:23 schrieb Ivan Maidanski:
> -------- Forwarded message --------
>  From: Ingo Albrecht < [email protected] >
>  To:  [email protected]
>  Date: Thu, 10 Apr 2014, 01:18 +04:00
>  Subject: [Gc] Stack overflows, Ex: bdwgc SIGSEGV when stack size is 
> exeeded
> 
> On 04/09/2014 01:12 PM, Ivan Maidanski wrote:
>  >
>  > I am wondering if there is by any chances a way for a soft(er) 
> landing
>  > if the stack space is exhausted? I believe the cause to be in the 
> stack
>  > size, since setting a ulimit -s changes the point in time when the
>  > program crashes. The program is an interpreter and is given a 
> recursive
>  > definition - so it is expected that something bad happens; I am 
> just
>  > trying to figure out what my options are to not crash to hard or at
>  > least print a diagnostic message or something.
>  >
>  > I'd apprechiate any comments you may have.
>  >
> 
> It might be possible to use protocols from libraries like this one:
> 
>  http://libsigsegv.sourceforge.net/
> 
> AFAIK, this library has been created for CLISP.
> 
> I've had some good experience with it in (non-GC) C++ projects.
> 
> Currently, it probably collides with BDWGC signal handling or might
>  be dependent on a specific initialization order. But it might be
>  possible to figure out how to use it with BDWGC portably.
> 
> Greetings
>  prom
> 
> _______________________________________________
>  bdwgc mailing list
>  [email protected]
>  https://lists.opendylan.org/mailman/listinfo/bdwgc

Thanks. Much appreciated and I'll look at the things you suggested. 
Perhaps this is an idea for a future development. Being able to set a 
max stack size and have the GC return gracefully if it tries to exceed 
that limit. But I should also mention that the GC is very useful! Also 
thanks for the mailing list, I was not aware of it.

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