Hi Brendan, On Mon, 6 Apr 2020 00:46:48 +1000 Brendan Tildesley wrote: > Closing since it seems to unrelated. Sorry for wasting your time. No, if in doubt, please always report. >I > think it may have been my ext4 having too many files. i deleted all my > system generations and gc'd a lot of stuff, and it seems to be miss > behaving. perhaps it is a different kind of guix bug that it doesnt cope > with this issue: > > > [ 7862.196231] EXT4-fs warning (device sdb1): ext4_dx_add_entry:2343: > Directory (ino: 24903688) index full, reach max htree level :2 > [ 7862.196241] EXT4-fs warning (device sdb1): ext4_dx_add_entry:2347: > Large directory feature is not enabled on this filesystem Is there already a bug report for that problem? I think the least we could do is check on startup if that ext4 option is set or not--or better yet, automatically degrade deduplication to duplication when it doesn't work otherwise.