On Fri, 1 Feb 2019 at 00:14, Burton, Ross <ross.burton@xxxxxxxxx> wrote: > $ cmp fs/foo /mnt/foo > fs/foo /mnt/foo differ: byte 1073741825, line 4194938 > > Okay that's not the 4GB boundary. $ bc obase=2 1073741825 1000000000000000000000000000001 That's 2^30. I'm guessing a signed type is used somewhere? Ross