On 07/13/2017 05:15 PM, Kirill A. Shutemov wrote:

quoted

Hm. I don't see this:

...
[    0.247532] 0xff9e938000000000-0xff9f000000000000      111104G                               p4d
[    0.247733] 0xff9f000000000000-0xffff000000000000          24P                               pgd
[    0.248066] 0xffff000000000000-0xffffff0000000000         255T                               p4d
[    0.248290] ---[ ESPfix Area ]---
[    0.248393] 0xffffff0000000000-0xffffff8000000000         512G                               p4d
[    0.248663] 0xffffff8000000000-0xffffffef00000000         444G                               pud
[    0.248892] ---[ EFI Runtime Services ]---
[    0.248996] 0xffffffef00000000-0xfffffffec0000000          63G                               pud
[    0.249308] 0xfffffffec0000000-0xfffffffefe400000         996M                               pmd
...

Do you have commit "x86/dump_pagetables: Generalize address normalization"
in your tree?

Nope. Applied now, it helped.

quoted

https://git.kernel.org/pub/scm/linux/kernel/git/kas/linux.git/commit/?h=la57/boot-switching/v2&id=13327fec85ffe95d9c8a3f57ba174bf5d5c1fb01

quoted

As for KASAN, I think it would be better just to make it work faster,
the patch below demonstrates the idea.

Okay, let me test this.

The patch works for me.

The problem is not exclusive to 5-level paging, so could you prepare and
push proper patch upstream?

Sure, will do

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