* Linus Torvalds <torva...@linux-foundation.org> wrote:
> On Thu, Aug 6, 2020 at 11:57 AM Joerg Roedel <jroe...@suse.de> wrote: > > > > On Thu, Aug 06, 2020 at 03:10:34PM +0200, Ingo Molnar wrote: > > > > > > * Linus Torvalds <torva...@linux-foundation.org> wrote: > > > > So apparently the "the page-table pages are all pre-allocated now" is > > > > simply not true. Joerg? > > > > It pre-allocates the whole vmalloc/ioremap PUD/P4D pages, but I actually > > only tested it with 4-level paging, as I don't have access to 5-level > > paging hardware. > > I don't think Jason has either. > > The > > PGD 0 P4D 0 > > line tells us that "pgd_present()" is true, even though PGD is 0 > (otherwise it wouldn't print the P4D part). That means that he doesn't > have l5 enabled. > > But you may obviously have different settings for CONFIG_X86_5LEVEL, > and maybe that ends up changing something? > > But since apparently it's not immediately obvious what the problem is, > I'll revert it for now. I've reverted it in x86/urgent as well earlier today, can send you that tree right now if you prefer that route. Thanks, Ingo