xfsdump/xfsrestore trash hardlinks

["Bernhard R. Erdmann" <be@xxxxxxxxxxx>]

Hi,

some day ago, I had to xfsrestore a /usr filesystem (RH 7.1, 2.4.13-xfs,
with recent xfstools).

After applying several dump levels up to 2, lots of files were missing:
/usr/bin/perl
/usr/bin/emacs
...lots of mrtg*.png in several subdirectories
[etc.]

Why does xfsrestore trash hardlinks?

Look at a running system:
# ll /usr/bin/emacs
-rwxr-xr-x   2 root     root      4001044 Jun 13  2000 /usr/bin/emacs
# find /usr -inum 4368604
/usr/bin/emacs-20.7
/usr/bin/emacs