Re: PE stack trick not working on lowmem machines

[Marcus Meissner]

On Mon, Nov 24, 2003 at 12:38:34PM -0800, WINE wrote:
> Marcus Meissner  writes:
> > So ld.so really wants to get 20xMB memory but fails.
> >
> > -> Not good on low memory machines.
>
> Hmmm I would have expected it to overcommit that memory. Do you have
> memory limits set?

No. But the SuSE 8.2 has a "overcommit" sysctl, which is default off.
In this case at least the SuSE kernel uses a heuristic on left over
memory to chek mmap()s. And it limits it at this amount of memory apparently.
If I do
    echo -n 1 >/proc/sys/vm/overcommit_memory
it works again.

Ciao, Marcus