Milter-greylist

>  > > "The atexit() function shall register the function [...] to
>  > > be called [...] at normal program termination.  At normal
>  > > program termination, all functions registered by the atexit()
>  > > function shall be called [...].  Normal termination occurs
>  > > either by a call to exit() or a return from main()."
>  > 
>  > Which means that if you get a SIGSEGV, you loose.
> 
> Right, but you shouldn't get a SIGSEGV during normal
> operation, because that would be a bug, wouldn't it.  ;-)
> 
And probably you do not want to destroy the previous dump
with some junk/garbage you have in the memory.
(since SIGSEGV warns you about something horrible).