Process map and fork problems
Wed Apr 20 14:40:00 GMT 2016
Corinna Vinschen <corinna-cygwin <at> cygwin.com> writes:
> It can't fragment, it can only grow. The Unix heap management doesn't
> have the notion of multiple application heaps. There's only the sbrk
> call to raise or shrink the size of the heap.
Thanks for the confirmation. It looks like I am allowed to migrate the
machines to a 3GB VM, thus circumventing the heap collision with DLL.
Meanwhile I've looked at some problems that typically happen when loading
emacs-x11 and it turns out that this loads a number of Windows DLL related
to the display drivers and some others related to networking to low
addresses. The only way I see to get around that is to try to enable ASLR,
so what's the latest on doing that with Cygwin DLL? As far as I understand
we should then rebase from 0x50000000 down since the range above is used by
ASLR for any DLL that we still need top load to fixed addresses?
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