[LTP] [LTP PATCH v1 1/1] syscalls/madvise11: Add some memory page soft-offlining control

[Petr Vorel]

Hi William,

> +/*\
> + * [Description]
> + * Stress the VMM and soft-offline code by spawning N threads which
> + * allocate memory pages and soft-offline them repeatedly.
> + * Control that soft-offlined pages get correctly replaced: with the
> + * same content and without SIGBUS generation when accessed.
> + * Could be used for example as a regression test-case for the
> + * poisoned soft-offlined pages case fixed by upstream commit
> + * d4ae9916ea29 (mm: soft-offline: close the race against page allocation)
d4ae9916ea29 is from v4.19. I haven't found this commit in git log
in stable linux-4.14.y and linux-4.9.y and it cannot be cherry-picked.
I wonder whether it was fixed differently or it endup as not easily fixable.
(4.9 EOL in 4 months, but 4.14 in Jan 2024).

Kind regards,
Petr