The answer is a procedural motion on a back-bench Bill on House of Lords (interim) reform.
For what seems like the tenth year running (although I suspect it is probably only the fourth year), Lord Steel of Aikwood (Sir David Steel in old money) has introduced a Bill to introduce some sensible interim reforms to the House of Lords, pending a fuller reform of the Second Chamber. These are to:
There are those in the House who want to talk the Bill out – most notably a number of hereditary peers who argue that there should be no change at all, pending a move to an elected House. The procedural motion was designed to outmanoeuvre them.
And the House was crowded (at least for 10.30am on a Friday) to vote on the matter and in the event the House voted by 175 to 16 in support of the procedural motion.
Procedural wranglings are nonetheless expected to go on for at least another six hours.