On Sun, Feb 13, 2022 at 07:07:03PM +0800, Yang Yanchao wrote: > Hello, > > I find a hanging issue during memory-hotplug on kernel-4.18. 4.18 was released over three years ago and is long past its support lifespan. 4.19.229 is the closest kernel which is still receiving any kind of support, and even then, I'd recommend trying to reproduce the problem on 5.16 before reporting this kind of bug.