Simon Marlow wrote:
>
> > Bug (1): A totally clean, top of the CVS tree does not work on NT 4.0.
> >
> > Behavior: returns with no result, any program.
> > Strange: Adding '+RTS -s' makes things work fine.
> > I think that there is not enough stack space on the C stack,
> > and the "change %esp register is failing us". The alloca
> > function is for this.
>
> A strange bug indeed, but what brings you to this conclusion?
Because
(1) I hacked the *.S code that start STG execution to call
printf after each instruction, and the allocate stack
space *instruction* caused the problem.
(2) I made the first invocation of this code call alloca (via a
large array), then free the space, the calls the STG code,
and thing work.
(3) I suspect that GDB is preallocating more stack.
Andy Gill, NT Debugger for GHC team :-)
