Date: Fri, 27 Jan 2006 17:14:34 GMT From: Jean-Sebastien Roy <js@jeannot.org> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/92432: negative used disk space Message-ID: <200601271714.k0RHEYBO009595@www.freebsd.org> Resent-Message-ID: <200601271750.k0RHo5ZS031102@freefall.freebsd.org>
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>Number: 92432
>Category: kern
>Synopsis: negative used disk space
>Confidential: no
>Severity: serious
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Fri Jan 27 17:50:05 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator: Jean-Sebastien Roy
>Release: 6.0 Stable
>Organization:
>Environment:
FreeBSD durandal.root 6.0-STABLE FreeBSD 6.0-STABLE #3: Thu Jan 26 22:07:13 CET 2006 root@durandal.root:/opt/obj/usr/src/sys/DURANDAL i386
>Description:
df often returns a negative used space. For example:
$ df
Filesystem 1K-blocks Used Avail Capacity Mounted on
/dev/ad0s1a 1012974 77358 854580 8% /
devfs 1 1 0 100% /dev
/dev/ad0s1g 10154158 4319874 5021952 46% /home
/dev/ad0s1h 99572614 74780342 16826464 82% /opt
/dev/ad0s1d 10154158 -42764 9384590 -0% /tmp
/dev/ad0s1f 10154158 4525194 4816632 48% /usr
/dev/ad0s1e 10154158 161980 9179846 2% /var
procfs 4 4 0 100% /proc
While I understand "available" space could be negative, a negative "used" space is quite strange.
>How-To-Repeat:
I dont really know how to repeat the problem. It is systematic on my config.
For information here is the fstab:
/dev/ad0s1b none swap sw 0 0
/dev/ad0s1a / ufs rw 1 1
/dev/ad0s1g /home ufs rw 2 2
/dev/ad0s1h /opt ufs rw 2 2
/dev/ad0s1d /tmp ufs rw,async 2 2
/dev/ad0s1f /usr ufs rw 2 2
/dev/ad0s1e /var ufs rw 2 2
/dev/acd0 /cdrom cd9660 ro,noauto 0 0
proc /proc procfs rw 0 0
And mount -v:
/dev/ad0s1a on / (ufs, local, soft-updates, fsid b8068943846f46ff)
devfs on /dev (devfs, local, fsid 00ff000101000000)
/dev/ad0s1g on /home (ufs, local, soft-updates, fsid b806894354f761a8)
/dev/ad0s1h on /opt (ufs, local, soft-updates, fsid b9068943e5aaa703)
/dev/ad0s1d on /tmp (ufs, asynchronous, local, fsid c10689430924adf9)
/dev/ad0s1f on /usr (ufs, local, soft-updates, fsid c206894315da6ca5)
/dev/ad0s1e on /var (ufs, local, soft-updates, fsid c3068943871a60b6)
procfs on /proc (procfs, local, fsid 01ff000404000000)
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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