Ramagudi Naziir wrote: > by design, zero cannot be a legit virtual address, so it is used > as a "magic" value that marks pointers as non-legit. Yes, by design in certain runtime libraries, yes, e.g. with glibc on GNU/Linux. ~chill -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/