RW <[email protected]> wrote: > It can return the physical memory, but there are a couple of caveats. > Firstly, it can only return whole pages. Secondly, it's not returned > instantaneously to avoid the overhead of page-faults and zeroing pages > if that region is remalloced. It's left to the page-daemon to recover > the physical memory in its own time, and it remains readable by it's > previous process until it's reassigned. Again, thanks for clearing that up for me. I wasn't all that far off-base after all, but yours and Nathans replies make sense! So there is a real world use for calloc after all! (though only as a bug catching security measure - no sane program should ever read its memory it hasn't yet written to!) cheers, jamie _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-security To unsubscribe, send any mail to "[email protected]"