On Tue, Jan 11, 2022 at 08:44:11PM +0100, Tobias Geerinckx-Rice via Bug reports for GNU Guix wrote: > The most likely culprit is a change or difference in how the kernel answers > FILE-SIZE's ‘how much disc space does FILE consume?’ — rounding it to N > blocks or bytes, including or excluding directory sizes, differing reported > directory sizes, etc. I'm going to build the version of the kernel used on berlin and test with that. I do find myself wondering if something in Guix is measuring the wrong thing: maybe we are measuring the size of files compressed in transit, rather than their uncompressed size on disk. Or something like that.