On Wed, Feb 10, 2021 at 06:31:56PM -0800, Yiyu Zhu wrote: > Hi, > > I have an Anker A8383 USB C hub with power delivery. I use the hub for > both charging and connecting to network. But when I unplug the hub, it > sometimes causes two kworker processes to occupy 100 % cpu time. > The issue will go away if I plug something back into the usbc port. > And the issue seems to persist through reboot. > > I am running kernel version 5.8.0-43-generic #49~20.04.1-Ubuntu SMP That is a very old kernel, and a distro-specific one. Please try the latest 5.10.y release, or report the problem to Ubuntu as they are the only ones that can support that unknown kernel. good luck! greg k-h
