#40633 [Asn->Sus]: disk_free_space returns a bad result on filesystems with negative free space

ID: 40633 Updated by: tony2001@php.net Reported By: adam-phpbugs at adam dot gs -Status: Assigned +Status: Suspended Bug Type: Filesystem function related Operating System: FreeBSD PHP Version: 5.2.1 Assigned To: tony2001 Previous Comments: ------------------------------------------------------------------------ [2007-04-10 20:58:25] stas@php.net Funny thing is that PHP doesn't use any unsigned numbers on the way - it translates it directly from system call int64 to double. I guess version of the system and header file defining struct statvfs would be useful. ------------------------------------------------------------------------ [2007-02-26 15:44:08] tony2001@php.net Please provide an SSH account on a machine where I can reproduce it. ------------------------------------------------------------------------ [2007-02-26 13:33:03] adam-phpbugs at adam dot gs changing OS to FreeBSD ------------------------------------------------------------------------ [2007-02-26 13:32:36] adam-phpbugs at adam dot gs This was FreeBSD if you look at the FreeBSD manpage for tunefs(8), this is the intended behaviour. http://www.freebsd.org/cgi/man.cgi? query=tunefs&apropos=0&sektion=0&manpath=FreeBSD+6.2- RELEASE&format=html Basically, in FreeBSD (under UFS2 at least) avaliable space is calculated as total minus used minus reserved. A small % (8 by default) is reserved. So, this is not really a bug, but actually an intended feature. ------------------------------------------------------------------------ [2007-02-26 09:33:41] tony2001@php.net What kind of BSD is that and don't you think that negative free space is a BSD bug? ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/40633 -- Edit this bug report at http://bugs.php.net/?id=40633&edit=1