Using the same mount point as SRC and DST with mount --bind somehow multiplies the number of mount points: $ ./mount | grep sdb /dev/sdb on /home type ext4 (rw,relatime,data=ordered) $ ./mount --bind /home /home $ ./mount | grep sdb /dev/sdb on /home type ext4 (rw,relatime,data=ordered) /dev/sdb on /home type ext4 (rw,relatime,data=ordered) $ ./mount --bind /home /home $ ./mount | grep sdb /dev/sdb on /home type ext4 (rw,relatime,data=ordered) /dev/sdb on /home type ext4 (rw,relatime,data=ordered) /dev/sdb on /home type ext4 (rw,relatime,data=ordered) /dev/sdb on /home type ext4 (rw,relatime,data=ordered) $ ./mount --bind /home /home $ ./mount | grep sdb /dev/sdb on /home type ext4 (rw,relatime,data=ordered) /dev/sdb on /home type ext4 (rw,relatime,data=ordered) /dev/sdb on /home type ext4 (rw,relatime,data=ordered) /dev/sdb on /home type ext4 (rw,relatime,data=ordered) /dev/sdb on /home type ext4 (rw,relatime,data=ordered) /dev/sdb on /home type ext4 (rw,relatime,data=ordered) /dev/sdb on /home type ext4 (rw,relatime,data=ordered) /dev/sdb on /home type ext4 (rw,relatime,data=ordered) This is probably a kernel bug, but as bind mounts to self are not that much of use, wouldn't it be worthwhile to prohibit it at all in mount(8)? System (mount from latest git): $ lsb_release -a LSB Version: n/a Distributor ID: openSUSE project Description: openSUSE 12.3 (x86_64) Release: 12.3 Codename: Dartmouth $ uname -r 3.7.10-1.16-desktop Have a nice day, Berny -- To unsubscribe from this list: send the line "unsubscribe util-linux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
