Re: [Bug-tar] Problem with gnu tar and ZFS on Linux

[Paul Eggert]

On 06/21/2018 09:53 AM, Andreas Dilger wrote:
> Keep your old snapshot around after you create the new one, and run "stat(1)"  > on the same file in both snapshots to see if there are any other 
differences > besides the device number that may be causing tar to think 
the file changed.
Yes, this is the key. You need to find out why 'tar' thinks the 
directory has changed, and 'stat' should tell you why.