D-Programming-Language/dmd — comment on commit 1bf28611d02fde65164502602623234324e0f5e2
File:  line 0
By WalterBright:

On 12/4/2011 11:30 AM, Martin Nowak wrote:
> It is a pity as I get absolute deterministic compiler runs on FreeBSD,
> very useful for debugging.
> You could try to disable Address space layout randomization (ASLR).
> On linux system-wide: sysctl -w kernel.randomize_va_space=0
>

Even so, any malloc will disturb the order of the pointers. Doing it in
essentially chronological rather than memory order is very useful for some kinds
of debugging. It's just a debug feature.