However there is now also this: https://github.com/openzfs/zfs/pull/13338/files
which seems to indicate that my / zfs understanding of the fallocate kernel flags are not what is done on other filesystems (and expected by stuff). If needed, we can look into pulling in https://github.com/openzfs/zfs/pull/13338/files Please let me know if setting zfs_fallocate_reserve_percent=0 is a workaround for now. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1969247 Title: fallocate with FALLOC_FL_ZERO_RANGE produces zero-size files on zfs in Jammy To manage notifications about this bug go to: https://bugs.launchpad.net/zfs/+bug/1969247/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
