On 18 October 2017 at 04:50, wuzhouhui <wuzhouhui14 at mails.ucas.ac.cn> wrote: > I googled this issue and found so many people have encountered, but most of > them just said "the newer kernel doesn't have this problem, so upgrade > kernel". We can't upgrade kernel easily, so we need to *really* solve this > problem. > > If you can't update the kernel then how can anyone fix the problem? The kernel needs to be changed out in some way. [Yes there are ways to binary patch a running kernel but it is a) frought with danger b) experts only area. People who do that do not offer their services for free for a reason.] -- Stephen J Smoogen.