Wei, others, ATM virtio_balloon_shrinker_scan will only get registered when deflate on oom feature bit is set. Not sure whether that's intentional. Assuming it is: virtio_balloon_shrinker_scan will try to locate and free pages that are processed by host. The above seems broken in several ways: - count ignores the free page list completely - if free pages are being reported, pages freed by shrinker will just get re-allocated again I was unable to make this part of code behave in any reasonable way - was shrinker usage tested? What's a good way to test that? Thanks! -- MST
