On Mon, Aug 19, 2019 at 03:31:22PM +1000, Dave Chinner wrote: > But I'm not so sure that's all there is to it. I turned KASAN on and > it works for the first few mkfs/mount cycles, then a mount basically > pegs a CPU and it's spending most of it's time inside KASAN > accouting code like this: Did that KASAN spat lead anywhere? I've done some KASAN runs now and I've not seen anything yet after running mkfs/mount/umount in a loop.