>Number: 160400
>Category: kern
>Synopsis: zfs rename dumps core
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Fri Sep 02 17:00:24 UTC 2011
>Closed-Date:
>Last-Modified:
>Originator: Nikolai Lifanov
>Release: 9.0 beta 2
>Organization:
>Environment:
FreeBSD lifanovbsd2 9.0-BETA2 FreeBSD 9.0-BETA2 #0: Fri Sep 2 03:47:59 EDT
2011 root@lifanovbsd2:/usr/obj/usr/src/sys/LIFANOV_FAST amd64
>Description:
After creating a full boot environment and trying to boot into it, renaming the
dataset containing the environment fails with a coredump.
[CODE]
lifanovbsd2# zfs list
NAME USED AVAIL REFER MOUNTPOINT
rpool 7.22G 891G 393M none
rpool/ROOT 3.84G 891G 31K none
rpool/ROOT/be-base 3.84G 891G 399M legacy
rpool/ROOT/be-base/tmp 76K 891G 44K /tmp
rpool/ROOT/be-base/usr 3.37G 891G 2.17G /usr
rpool/ROOT/be-base/usr/home 88K 891G 67K /usr/home
rpool/ROOT/be-base/usr/jail 31K 891G 31K /usr/jail
rpool/ROOT/be-base/usr/ports 539M 891G 426M /usr/ports
rpool/ROOT/be-base/usr/ports/distfiles 113M 891G 113M
/usr/ports/distfiles
rpool/ROOT/be-base/usr/ports/packages 31K 891G 31K /usr/ports/packages
rpool/ROOT/be-base/usr/src 684M 891G 684M /usr/src
rpool/ROOT/be-base/var 84.0M 891G 136K /var
rpool/ROOT/be-base/var/crash 31.5K 891G 31.5K /var/crash
rpool/ROOT/be-base/var/db 82.9M 891G 80.3M /var/db
rpool/ROOT/be-base/var/db/pkg 2.57M 891G 2.57M /var/db/pkg
rpool/ROOT/be-base/var/empty 31K 891G 31K /var/empty
rpool/ROOT/be-base/var/log 629K 891G 397K /var/log
rpool/ROOT/be-base/var/mail 64K 891G 38K /var/mail
rpool/ROOT/be-base/var/run 106K 891G 61.5K /var/run
rpool/ROOT/be-base/var/tmp 52K 891G 32K /var/tmp
rpool/tmp 45K 891G 44K none
rpool/usr 2.85G 891G 2.17G none
rpool/usr/home 69K 891G 68K none
rpool/usr/jail 31K 891G 31K none
rpool/usr/ports 345M 891G 232M none
rpool/usr/ports/distfiles 113M 891G 113M none
rpool/usr/ports/packages 32K 891G 31K none
rpool/usr/src 348M 891G 348M none
rpool/var 81.9M 891G 133K none
rpool/var/crash 32.5K 891G 31.5K none
rpool/var/db 81.4M 891G 80.5M none
rpool/var/db/pkg 890K 891G 889K none
rpool/var/empty 31K 891G 31K none
rpool/var/log 146K 891G 112K none
rpool/var/mail 33.5K 891G 32.5K none
rpool/var/run 83.5K 891G 61.5K none
rpool/var/tmp 33K 891G 32K none
lifanovbsd2# zfs rename rpool/ROOT/be-base rpool/ROOT/be-current
Assertion failed: (!clp->cl_alldependents), file
/usr/src/cddl/lib/libzfs/../../../cddl/contrib/opensolaris/lib/libzfs/common/libzfs_changelist.c,
line 470.
Abort (core dumped)
lifanovbsd2#
[/CODE]
>How-To-Repeat:
Do roughly the following:
[CODE]
zfs snapshot -r rpool@snap0
zfs create -o dedup=on rpool/ROOT
zfs send rpool@snap0 | zfs recv rpool/ROOT/be-base
zfs destroy rpool/ROOT/be-base@snap0
for i in `zfs list -t snapshot | grep snap0 | cut -d@ -f1 | cut -c6-`; do (zfs
send rpool${i}@snap0 | zfs recv rpool/ROOT/be-base${i}); done
for i in `mount | grep -v /mnt/ | grep rpool/ | cut -d' ' -f1 | cut -c6-`; do
zfs set mountpoint=none rpool${i}; zfs set mountpoint=${i}
rpool/ROOT/be-base${i}; done
#Check your mountpoints and fiddle to get everything right.
#Running previous command twice to start off might help.
#'zfs list' can lie
zfs set freebsd:boot-environment=1 rpool/ROOT/be-base
zfs set mountpoint=/mnt rpool/ROOT/be-base
sed -i 's/zfs:rpool/zfs:rpool\/ROOT\/be-base/g'
/rpool/ROOT/be-base/boot/loader.conf
zfs set mountpoint=legacy rpool/ROOT/be-base
zpool set bootfs=rpool/ROOT/be-base rpool
reboot
[/CODE]
After this, do a 'zfs rename' on be-base.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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