On Mon, Apr 23, 2018 at 8:47 AM, Joerg Roedel <joro@xxxxxxxxxx> wrote:
>
> here is the new version of my PTI patches for x86-32 which
> implement last weeks review comments.
Just one question: have you checked the page table setup for the
basics wrt the USER bit in particular?
No global pages should be marked PAGE_USER, with the possible
exception of that nasty old vsyscall page.
And it would be nice to verify that the page tables for kernel
mappings also don't have PAGE_USER on them, although again that
vsyscall page can cause problems.
Linus
