On Mon, 3 Jun 2013 23:30:04 +0400 Glauber Costa <glommer@xxxxxxxxxx> wrote: > When we delete kmem-enabled memcgs, they can still be zombieing > around for a while. The reason is that the objects may still be alive, > and we won't be able to delete them at destruction time. > > The only entry point for that, though, are the shrinkers. The > shrinker interface, however, is not exactly tailored to our needs. It > could be a little bit better by using the API Dave Chinner proposed, but > it is still not ideal since we aren't really a count-and-scan event, but > more a one-off flush-all-you-can event that would have to abuse that > somehow. This patch is significantly dependent on http://ozlabs.org/~akpm/mmots/broken-out/memcg-debugging-facility-to-access-dangling-memcgs.patch, which was designated "mm only debug patch" when I merged it six months ago. We can go ahead and merge memcg-debugging-facility-to-access-dangling-memcgs.patch upstream I guess, but we shouldn't do that just because it makes the patch-wrangling a bit easier! Is memcg-debugging-facility-to-access-dangling-memcgs.patch worth merging in its own right? If so, what changed since our earlier decision? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>