Comment 2 for bug 483890

Not convinced it's a duplicate of 444563, but perhaps related. I have a script that creates snapshots of / and /var in succession, and often receive the same strange error message the reporter notes above:

lvcreate --size 4GB --snapshot --name root-snap-20091123b /dev/vg0/root
  Logical volume "root-snap-20091123b" created

lvcreate --size 16GB --snapshot --name var-snap-20091123b /dev/vg1/var
  Path /dev/ACTION=_change_ no longer valid for device(252,10)
  Logical volume "var-snap-20091123b" created

This is accompanied by "Invalid cross-device link" errors in syslog.