al_s, in case you read the logs, r151046bi has been released which contains the fix for the ena issue (illumos 16615) [fenix] - omnios.org/rn/r46

illumos 16615 fenix

BUG 16615: ena assertion failure in ena_tx_intr_work() (Closed)

↳ illumos.org/issues/16615 | code.illumos.org/c/illumos-gate/+/3553

andyf Nice! Any known issues updating straight from 042b to 046bi? This is prod and I have been dragging my feet for too long...