Re: [PATCH 3/3] selftests/mm/guard-regions: add smaps visibility test

On Wed, Oct 29, 2025 at 09:40:19PM -0700, Suren Baghdasaryan wrote:

On Wed, Oct 29, 2025 at 9:51 AM Lorenzo Stoakes lorenzo.stoakes@oracle.com wrote:

...

Assert that we observe guard regions appearing in /proc/$pid/smaps as expected, and when split/merge is performed too (with expected sticky behaviour).

Also add handling for file systems which don't sanely handle mmap() VMA merging so we don't incorrectly encounter a test failure in this situation.

Signed-off-by: Lorenzo Stoakes lorenzo.stoakes@oracle.com

Reviewed-by: Suren Baghdasaryan surenb@google.com

Thanks!