Dne 7.3.2012 17:22, Philip Boulain napsal(a): > We have a Debian Wheezy server using mirrored RAID running kernel > 3.2.0-1-amd64 and LVM version 2.02.88-2. There seems to be an issue > where snapshot removal fails due to being "in use" the first time, but > repeating the operation will succeed: > > # lvcreate --size 128M --name testvolume buildturbo64 > Logical volume "testvolume" created > # lvcreate --size 128M --snapshot --name testsnap buildturbo64/testvolume > Logical volume "testsnap" created > # lvremove buildturbo64/testsnap > Do you really want to remove active logical volume testsnap? [y/n]: y > LV buildturbo64/testsnap in use: not deactivating > Unable to deactivate logical volume "testsnap" > # lvremove buildturbo64/testsnap > Do you really want to remove active logical volume testsnap? [y/n]: y > Logical volume "testsnap" successfully removed > # lvremove buildturbo64/testvolume > Do you really want to remove active logical volume testvolume? [y/n]: y > Logical volume "testvolume" successfully removed > > Note that no filesystem is even created here, so it's not mounted or > anything. That volume group has plenty of free extents (vgdisplay > excerpt): > > Alloc PE / Size 52353 / 204.50 GiB > Free PE / Size 66794 / 260.91 GiB > > This is repeatable every time and waiting arbitrary delays between the > operations makes no difference. There is no difference if the logical > volume is specified by its device node (/dev/buildturbo64/testsnap). > > Under a *non-RAID* Debian Wheezy VM with an otherwise identical > configuration, lvremove works first time, as I'd expect. > > Is this a bug, or some form of user error? > Looks like 'famous' watch rule problem with and udev. Newer version of lvm are trying to a be bit smarted. But for now easiest would be to remove 'watch' rule being executed on dm devices if you need urgent solution. i.e.: https://bugzilla.redhat.com/show_bug.cgi?id=753105 Zdenek _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
