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SubjectRe: [tip:x86/mm] [x86/mm] 1248fb6a82: Kernel_panic-not_syncing:kasan_populate_pmd:Failed_to_allocate_page
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On 10/27/22 18:12, Dave Hansen wrote:
> 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?

Done, It slightly different because there was a bug in vaddr->nid calculation.

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