On Mon, Apr 14, 2014 at 7:47 PM, Doug Barton <do...@dougbarton.us> wrote:
> On 04/14/2014 05:50 PM, John Levine wrote: > >> In article <534c68f4....@cox.net> you write: >> >>> On 4/14/2014 9:38 AM, Matthew Black wrote: >>> >>>> Shouldn't a decent OS scrub RAM and disk sectors before allocating >>>> them to processes, unless that process enters processor privileged >>>> mode and sets a call flag? I recall digging through disk sectors on >>>> RSTS/E to look for passwords and other interesting stuff over 30 >>>> years ago. >>>> >>> >>> I have been out of the loop for quite a while but my strongly held >>> belief is that such scrubbing would be an enormous (and intolerable) >>> overhead ... >>> >> >> It must be quite a while. Unix systems have routinely cleared the RAM >> and disk allocated to programs since the earliest days. >> > > When you say "clear the disk allocated to programs" what do you mean > exactly? > Is that like "sudo rm -rf /bin" ? ;P Matt
