> > > > > > EIO on clone/dedupe: > > > generic/303 generic/304 > > > > > > Wrong st_blocks/fiemap: > > > generic/353 generic/392 generic/422 > > > > Hmm, generic/353 passes for me... > > > > So for me: > running generic/353 after generic/303 it fails > and running it again it passes. > The failed line in 303,304 is: xfs_io -c "pread -v -q 9223372036854775806 1" /mnt/test/foo pread: Input/output error And failure seems not related to clone/dedupe at all. Easily reproduced on any file (i.e. touch /mnt/test/foo), so its probably just an arithmetic len/offset bug. I may have more time to look into this later today. Thanks, Amir.