This file has a list of bugs or misfeatures  with other systems that affect
Unionfs.  To see a somewhat comprehensive list of Unionfs bugs visit
https://bugzilla.filesystems.org

The NFS server returns -EACCES for read-only exports, instead of -EROFS.  This
means we can't reliably detect a read-only NFS export.  If you want to use
copy-on-write with NFS, set the per-branch option `nfsro'.  If this flag
is set, then Unionfs will apply standard Unix permissions to files on this
nfs-mouted branch.

The PPC module loading algorithm has an O(N^2) loop, so it takes a while to
load the Unionfs module, because we have lots of symbols.

Older versions of Reiser4 don't work with Unionfs, because they can't handle
seeking through directories properly.
