Re: [tip:x86/mm] [x86/mm] 1248fb6a82: Kernel_panic-not_syncing:kasan_populate_pmd:Failed_to_allocate_page

[Dave Hansen]

On 10/25/22 08:39, Andrey Ryabinin wrote:
> KASAN tries to allocate shadow memory for the whole cpu entry area.
> The size is CPU_ENTRY_AREA_MAP_SIZE/8 and this is obviously fails after your patch.
> The fix this might be something like this:
> 
> ---
>  arch/x86/include/asm/kasan.h |  2 ++
>  arch/x86/mm/cpu_entry_area.c |  3 +++
>  arch/x86/mm/kasan_init_64.c  | 16 +++++++++++++---
>  3 files changed, 18 insertions(+), 3 deletions(-)

Andrey, if you have a minute, could you send this as a real patch, with
a SoB?

Alternatively, do you have any issues if we add your SoB and apply it?