Re: [PATCH 1/1] selftests/proc: use RSS in /proc/pid/smaps_rollup tearing tests
From: Pedro Falcato
Date: Wed Oct 28 2026 - 06:16:24 EST
On Tue, Oct 27, 2026 at 10:13:12PM -0700, Suren Baghdasaryan wrote:
> Pss metrics can be affected by map count even if VMA tree stays unchanged,
> therefore test checking VMA tree integrity can't use them. Use Rss instead
> and pre-populate the VMAs so that Rss changes if a VMA gets skipped or
> double-counted.
>
> Fixes: ca5480fb53fa ("selftests/proc: add /proc/pid/smaps_rollup tearing tests")
> Reported-by: kernel test robot <yi1.lai@xxxxxxxxx>
> Closes: https://lore.kernel.org/oe-lkp/202610271934.fd287c3f-lkp@xxxxxxxxx
> Signed-off-by: Suren Baghdasaryan <surenb@xxxxxxxxxx>
Reviewed-by: Pedro Falcato <pfalcato@xxxxxxx>
--
Pedro