Samuel Thibault, le lun. 09 nov. 2020 20:06:28 +0100, a ecrit: > I'd say track the offset within the pread calls, to make sure that it is > not getting lost along the path.
Also, I'd say put prints around the pread and pwrite calls. Actually now realizing that rumpdisk is for now single-threaded, they shouldn't even be getting intermixed at all. Btw, is your second partition within small bounds? (e.g. within 4GiB that can be expressed with 32bit integers) Samuel