Bug#637104: Can't reproduce #637104 (lvm2: lvrename fails to rename COW partition when renaming snapshot)

[Axel Beckert]

Hi,

JFTR: I was experimenting with such stuff, too, today and couldn't
reproduce this issue with these commands on Squeeze amd64:

  502  lvcreate -L 128M -n foobar vg0
  503  mkfs.ext4 /dev/vg0/foobar 
  504  mount /dev/vg0/foobar /mnt/tmp/
  505  cd /mnt/tmp/
  506  ls -l
  507  echo foo > bar
  508  cd
  509  umount /mnt/tmp/
  510  lvcreate -L 64M -n foobar-snapshot -s /dev/vg0/foobar 
  511  lvs
  512  mount /dev/vg0/foobar /mnt/tmp/
  513  lvs
  514  cd /mnt/tmp/
  516  lvs
  517  ls -l
  518  echo fnord > bar
  519  echo foobar > bla
  520  lvs
  521  cd -
  522  umount /mnt/tmp/
  523  mount /dev/vg0/foobar-snapshot /mnt/tmp/
  524  ls -l /mnt/tmp/
  525  umount /mnt/tmp/
  527  lvs
  528  lvresize -L 32M /dev/vg0/foobar-snapshot 
  529  lvs
  530  fsck /dev/vg0/foobar-snapshot
  531  fsck -f -C0 /dev/vg0/foobar-snapshot
  532  lvs
  533  mount /dev/vg0/foobar-snapshot /mnt/tmp/
  535  ls -l /mnt/tmp/
  536  umount /mnt/tmp/
  537  lvs
  539  lvrename vg0 foobar blafasel
  540  lvs
  541  lvrename vg0 foobar-snapshot blafasel-snapshot
  542  lvs
  543  lvrename vg0 blafasel foo

The only things in the dmesg output:

Aug 10 17:07:40 acromantula kernel: [2940774.130094] EXT4-fs (dm-15): mounted filesystem with ordered data mode. Opts: (null)
Aug 10 17:10:01 acromantula kernel: [2940914.983604] EXT4-fs (dm-15): mounted filesystem with ordered data mode. Opts: (null)
Aug 10 17:11:14 acromantula kernel: [2940987.932204] EXT4-fs (dm-16): mounted filesystem with ordered data mode. Opts: (null)
Aug 10 17:14:44 acromantula kernel: [2941198.047796] EXT4-fs (dm-16): mounted filesystem with ordered data mode. Opts: (null)

Looks fine for me.

		Regards, Axel
-- 
 ,''`.  |  Axel Beckert <abe at debian.org>, http://people.debian.org/~abe/
: :' :  |  Debian Developer, ftp.ch.debian.org Admin
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