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SubjectRe: [PATCH v2] mm: Track page table modifications in __apply_to_page_range()

> The __apply_to_page_range() function is also used to change and/or
> allocate page-table pages in the vmalloc area of the address space.
> Make sure these changes get synchronized to other page-tables in the
> system by calling arch_sync_kernel_mappings() when necessary.
> Tested-by: Chris Wilson <> #x86-32
> Cc: <> # v5.8+
> Signed-off-by: Joerg Roedel <>

This seems to solve screen blinking problems on Thinkpad X60. (It
already survived few unison runs, which would usually kill it.).

Tested-by: Pavel Machek <>

Thanks and best regards,
(cesky, pictures)
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