Hi, I cannot reproduce this problem with 0.7.13-1. The following findings seem related:
https://github.com/zfsonlinux/zfs/issues/3666 https://github.com/zfsonlinux/zfs/commit/cf7684bc8d57ace26d086027e8059c725fd9ff92#diff-66bd524398bcd2ac70d90925ab6d8073 but I'm not sure wheter the problem you reported had been fixed by this change.
