bug#13088: stack overflow while compiling

[Stefan Israelsson Tampe]

Hi,

I did some effort into getting this working. but first you could try to use an 

or-map to get what you want in stead if compiling everything into code. but it's probably

faster what you are doing.

Anyway in vm.c I changed the 

#define VM_DEFAULT_STACK_SIZE (64 * 1024)

to

#define VM_DEFAULT_STACK_SIZE (64 * 1024 * 64)

and recompiled! 

Then I can compile to tree-il. Compiling all the way does not work well,

But if you enter

scheme@(guile-user)> (compile program #:to 'value #:opts '(#:partial-eval? #f #:cse? #f))  ;;NO OPTIMIZATION PASSES

It will compile to.

$7 = #<procedure 3708400 (proto server-port client-zone server-zone signature-id)>

In all this emphasizes what I said in earlier and I would still ask for a sane way to change the stack size for guile

and document it well.

Cheers!

/Stefan

On Mon, Dec 10, 2012 at 1:16 PM, <address@hidden> wrote:

-[ Sat, Dec 08, 2012 at 10:44:15PM +0100, Stefan Israelsson Tampe ]----

> The whole macro-expansion to tree-il in psyntax is not done in a tail call
> manner which limits the sizes
> of code tree's that we can compile. Although it would be interesting to
> know how to code the
> psyntax expand algorithm in such a way that we don't risk blowing the
> stack, I think we
> will be better served by waiting for better stack algorithm that implement
> growing stacks.

If it was not obvious already I must confess I'm ignorant about the internals
of guile (and of any other scheme compiler), so what I will say is probably
irrelevant. but I changed the cond into the equivalent if forms, which
I believe are not macros, but the result is the same (stack overflow).

> An alternate feature request is to have some way to tell guile the size of
> the stack at start up.

If though that was what '(debug-set! stack x)' was for, but this does not
seams to change anything. I also tried changing stack limits with ulimit
to no avail.

> For now anyone that need to compile large functions the only option, I
> believe, is to change the stack size in the code
> and recompile.

Any hint on how to do that specifically for guile, beyond the above
ulimit/setrlimit?