Hi, I have a Netapp file server, and their filesystem is able to contain small files of up to 64 bytes in the inode without allocating any blocks.
This causes --sparse to corrupt files silently due to this patch: http://git.savannah.gnu.org/cgit/tar.git/commit/?id=a9895fd20c957ce184091672f1623a5bedd82407 Please see this bug report: https://bugzilla.redhat.com/show_bug.cgi?id=1024095 It is unfortunately not the case that an st_blocks value of zero means that the file is empty on all filesystems. I don't know if there are any other exceptions besides Netapp. Regards, Andy
