Same problem here. Another workaround is to use 'sudo dmsetup remove /dev/dm-X' instead of 'sudo lvchange -a n vg/lv'. As @Dr_Jekyll has stated Ubuntu 12.04 is not affected.
Same problem here. Another workaround is to use 'sudo dmsetup remove /dev/dm-X' instead of 'sudo lvchange -a n vg/lv'.
As @Dr_Jekyll has stated Ubuntu 12.04 is not affected.