zfsonlinux/zfs — pull request #2091 by chrisrd (2014-01-31 16:39:05+00:00)
Title: 4188 assertion failed in dmu_tx_hold_free(): dn_datablkshift != 0

Author: Matthew Ahrens
Reviewed by: George Wilson
Reviewed by: Christopher Siden
Approved by: Garrett D'Amore
Ported-by: Chris Dunlop

Refences:
https://www.illumos.org/issues/4188
illumos/illumos-gate@bb411a08b05466bfe0c7095b6373bbc1587e259a