On Tue 13 Dec 2011 14:43, ri...@happyleptic.org writes: > -[ Tue, Dec 13, 2011 at 01:42:35PM +0100, Andy Wingo ]---- >> If you close the fd, isn't the memory unmapped? Isn't that a bad thing? >> >> Maybe I was just under a big misconception here :) > > That's a common misconception. The mapping of VM space to disk storage > is unrelated to the file descriptor set (or any program would have at > least a file descriptor opened for itself, since any program is mapped > into memory). > Compare for instance cat /proc/1/maps with ls -l /proc/1/fd. > As I said, the attached patch, which do closes the fd, actually works > (ie make check and my personal program works). So the memory is clearly > not unmapped :-)
I applied your patch. Thanks very much for the patch, and for the education :-) Cheers, Andy -- http://wingolog.org/
