On Thu, Dec 14, 2017 at 08:19:36AM -0800, Andy Lutomirski wrote: > On Thu, Dec 14, 2017 at 3:27 AM, Peter Zijlstra <pet...@infradead.org> wrote: > > It makes no sense to ever prod at special mappings with any of these > > syscalls. > > > > XXX should we include munmap() ? > > This is an ABI break for the vdso. Maybe that's okay, but mremap() on > the vdso is certainly used, and I can imagine debuggers using > mprotect().
*groan*, ok so mremap() will actually still work after this, but yes, mprotect() will not. I hadn't figured people would muck with the VDSO like that.
