Subject: Re: Free space not freed on union mounts?
To: Peter Seebach <>
From: Luke Mewburn <>
List: current-users
Date: 03/10/2003 15:45:25
On Sun, Mar 09, 2003 at 06:47:34PM -0600, Peter Seebach wrote:
  | So, I have a small mfs filesystem, union-mounted over a directory.
  | If I create a file there, and then delete it, the space is not reclaimed.
  | If I unmount the union mount, it frees up, and then if I redo the union
  | mount, all is well... but surely I don't need to do that!
  | Obvious setting?  Just Don't Do That?

I think it's a "known problem" with read-write union mounts.

The freed space will eventually get reported correctly, if you instead
wait until the vnodes get flushed (?).