Comment 6 for bug 105936

I'm confirming this issue in Feisty's xen kernel 2.6.19-4-server:

# ./snapshot-collision.sh xen 4 1 4G 512M
Attempting to empty disk caches ...
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 6.87661 seconds, 156 MB/s
Creating test LVs ...
  Logical volume "poc1" created
  Logical volume "poc2" created
  Logical volume "poc3" created
  Logical volume "poc4" created
Creating snapshots ...
  LV xen/poc1-1 in use: not deactivating
  Couldn't deactivate new snapshot.
  Logical volume "poc3-1" created
  LV xen/poc2-1 in use: not deactivating
  Couldn't deactivate new snapshot.
  Logical volume "poc4-1" created
Done
Deleting snapshots ...
umount: /mnt/poc1-1: not found
umount: /mnt/poc2-1: not found
  Logical volume "poc1-1" successfully removed
  Logical volume "poc2-1" successfully removed
  Logical volume "poc4-1" successfully removed
  Logical volume "poc3-1" successfully removed
Deleteing test LVs ...
  Logical volume "poc1" successfully removed
  Logical volume "poc2" successfully removed
  Logical volume "poc3" successfully removed
  Logical volume "poc4" successfully removed