Date: Sat, 10 May 2008 18:58:07 GMT From: Chad Milios <freebsd-pr@cropcirclesystems.com> To: freebsd-gnats-submit@FreeBSD.org Subject: bin/123574: df: -t option destroys info for unionfs (and maybe other) mounts Message-ID: <200805101858.m4AIw7xp000859@www.freebsd.org> Resent-Message-ID: <200805101900.m4AJ0Cs2013454@freefall.freebsd.org>
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>Number: 123574 >Category: bin >Synopsis: df: -t option destroys info for unionfs (and maybe other) mounts >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sat May 10 19:00:12 UTC 2008 >Closed-Date: >Last-Modified: >Originator: Chad Milios >Release: 6.3-RELEASE-p1 amd64 >Organization: Crop Circle Systems >Environment: FreeBSD levar.cropcirclesystems.net 6.3-RELEASE-p1 FreeBSD 6.3-RELEASE-p1 #0: Sat Mar 22 20:55:37 UTC 2008 root@levar.cropcirclesystems.net:/usr/obj/usr/src/sys/SMP amd64 >Description: df alone shows info for each layering of a unionfs mount. when using the -t option, all layers show the info pertaining to only the top layer. levar# df -h Filesystem Size Used Avail Capacity Mounted on /dev/mirror/levar 3.9G 368M 3.2G 10% / devfs 1.0K 1.0K 0B 100% /dev /dev/concat/cbus 77G 15G 56G 21% /media/cbus /media/cbus/levar/var 77G 15G 56G 21% /var /media/cbus/levar/usr/src 77G 15G 56G 21% /usr/src /media/cbus/levar/usr/obj 77G 15G 56G 21% /usr/obj /media/cbus/levar/usr/ports 77G 15G 56G 21% /usr/ports /media/cbus/levar/home 77G 15G 56G 21% /home /dev/ufs/ttown 389G 387G 1.9G 100% /media/ttown /dev/ufs/sly 389G 291G 98G 75% /media/sly /dev/ufs/pburg 389G 137G 252G 35% /media/pburg /dev/ufs/kron 389G 377G 12G 97% /media/kron <above>:/media/ttown/Archive 467G 465G 1.9G 100% /home/joe/Archive <above>:/media/kron/Archive 856G 843G 12G 99% /home/joe/Archive <above>:/media/pburg/Archive 1.2T 993G 252G 80% /home/joe/Archive <above>:/media/sly/Archive 1.6T 1.5T 98G 94% /home/joe/Archive levar# df -ht nofoobarfs Filesystem Size Used Avail Capacity Mounted on /dev/mirror/levar 3.9G 368M 3.2G 10% / devfs 1.0K 1.0K 0B 100% /dev /dev/concat/cbus 77G 15G 56G 21% /media/cbus /media/cbus/levar/var 77G 15G 56G 21% /var /media/cbus/levar/usr/src 77G 15G 56G 21% /usr/src /media/cbus/levar/usr/obj 77G 15G 56G 21% /usr/obj /media/cbus/levar/usr/ports 77G 15G 56G 21% /usr/ports /media/cbus/levar/home 77G 15G 56G 21% /home /dev/ufs/ttown 389G 387G 1.9G 100% /media/ttown /dev/ufs/sly 389G 291G 98G 75% /media/sly /dev/ufs/pburg 389G 137G 252G 35% /media/pburg /dev/ufs/kron 389G 377G 12G 97% /media/kron <above>:/media/sly/Archive 1.6T 1.5T 98G 94% /home/joe/Archive <above>:/media/sly/Archive 1.6T 1.5T 98G 94% /home/joe/Archive <above>:/media/sly/Archive 1.6T 1.5T 98G 94% /home/joe/Archive <above>:/media/sly/Archive 1.6T 1.5T 98G 94% /home/joe/Archive levar# df -ht unionfs Filesystem Size Used Avail Capacity Mounted on <above>:/media/sly/Archive 1.6T 1.5T 98G 94% /home/joe/Archive <above>:/media/sly/Archive 1.6T 1.5T 98G 94% /home/joe/Archive <above>:/media/sly/Archive 1.6T 1.5T 98G 94% /home/joe/Archive <above>:/media/sly/Archive 1.6T 1.5T 98G 94% /home/joe/Archive >How-To-Repeat: create some unionfs mount points, and run `df` and `df -t nofoobarfs` and `df -t unionfs` and check the output. here are the pertinent lines in my fstab: /media/ttown/Archive /home/joe/Archive unionfs rw,noatime,copymode=transparent,late 0 0 /media/kron/Archive /home/joe/Archive unionfs rw,noatime,copymode=transparent,late 0 0 /media/pburg/Archive /home/joe/Archive unionfs rw,noatime,copymode=transparent,late 0 0 /media/sly/Archive /home/joe/Archive unionfs rw,noatime,copymode=transparent,late 0 0 here are all the rest, if for some reason some of the properties of the encompassing mount points seem to have an effect: /dev/mirror/levar / ufs rw,noatime 1 1 /dev/concat/cbus /media/cbus ufs rw,noatime 1 2 /dev/ufs/ttown /media/ttown ufs rw,noatime,late 1 2 /dev/ufs/sly /media/sly ufs rw,noatime,late 1 2 /dev/ufs/pburg /media/pburg ufs rw,noatime,late 1 2 /dev/ufs/kron /media/kron ufs rw,noatime,late 1 2 /media/cbus/levar/var /var nullfs rw,noatime 0 0 /media/cbus/levar/usr/src /usr/src nullfs rw,noatime 0 0 /media/cbus/levar/usr/obj /usr/obj nullfs rw,noatime 0 0 /media/cbus/levar/usr/ports /usr/ports nullfs rw,noatime 0 0 /media/cbus/levar/home /home nullfs rw,noatime 0 0 >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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