On Thu, Dec 13, 2018 at 01:28:36AM +0900, Ju Hyung Park wrote: > Hi, > > I'm using the latest stable tree v4.19.8, > and I'm noticing kworker and ksoftirqd hogging up the CPU > upon removing any USB devices on my laptop. > > This issue was not present on any kernels below v4.19. Can you run 'git bisect' to track down the offending commit? thanks, greg k-h