Re: [PATCH V3 0/2] mm/debug: Add tests for architecture exported page table helpers

Kirill A. Shutemov
2019-09-24T11:51:02Z

On Fri, Sep 20, 2019 at 12:03:21PM +0530, Anshuman Khandual wrote:
> This series adds a test validation for architecture exported page table
> helpers. Patch in the series adds basic transformation tests at various
> levels of the page table. Before that it exports gigantic page allocation
> function from HugeTLB.
>
> This test was originally suggested by Catalin during arm64 THP migration
> RFC discussion earlier. Going forward it can include more specific tests
> with respect to various generic MM functions like THP, HugeTLB etc and
> platform specific tests.
>
> https://lore.kernel.org/linux-mm/20190628102003.GA56463@arrakis.emea.arm.com/
>
> Testing:
>
> Successfully build and boot tested on both arm64 and x86 platforms without
> any test failing. Only build tested on some other platforms. Build failed
> on some platforms (known) in pud_clear_tests() as there were no available
> __pgd() definitions.
>
> - ARM32
> - IA64

Hm. Grep shows __pgd() definitions for both of them. Is it for specific
config?

--
Kirill A. Shutemov