Re: [PATCH 1/3] x86: mm: disable KMSAN instrumentation for physaddr.c

[Kirill A . Shutemov]

On Fri, Jun 21, 2024 at 11:48:59AM +0200, Alexander Potapenko wrote:
> Enabling CONFIG_DEBUG_VIRTUAL=y together with KMSAN led to infinite
> recursion, because kmsan_get_metadata() ended up calling instrumented
> __pfn_valid() from arch/x86/mm/physaddr.c.
> 
> Prevent it by disabling instrumentation of the whole file.
> 
> Reported-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
> Closes: https://github.com/google/kmsan/issues/95
> Signed-off-by: Alexander Potapenko <glider@xxxxxxxxxx>

Reviewed-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>

-- 
  Kiryl Shutsemau / Kirill A. Shutemov