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. On 10/18/2017 04:41 PM, John Hodrien wrote: > On Wed, 18 Oct 2017, wuzhouhui wrote: > >> Does anyone have encountered same problem or advice? > > Expect minimal help when running custom kernel modules on painfully old > CentOS > kernels? > > jh > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos