On Tue, 2018-02-06 at 08:44 +0100, Oleksandr Natalenko wrote: > Hi, Paolo. > > I can confirm that this patch fixes cfdisk hang for me. I've also tried > to trigger the issue Mike has encountered, but with no luck (maybe, I > wasn't insistent enough, just was doing dd on usb-storage device in the > VM). I was doing kbuilds, and it blew up on me twice. Switching back to cfq seemed to confirm it was indeed the patch causing trouble, but that's by no means a certainty. -Mike