Did you know...?LWN.net is a subscriber-supported publication; we rely on subscribers to keep the entire operation going. Please help out by buying a subscription and keeping LWN on the net. The 4.9-rc1 kernel prepatch, released on October 15, introduced a large set of new features — and, inevitably, a smaller set of new regressions. One of those problems, a module-related bootstrap failure, remai