On Mon, 18 Jun 2012, Glauber Costa wrote: > In the slub allocator, when the last object of a page goes away, we > don't necessarily free it - there is not necessarily a test for empty > page in any slab_free path.
This is the same btw in SLAB which keeps objects in per cpu caches and keeps empty slab pages on special queues. > This patch marks all memcg caches as dead. kmem_cache_shrink is called > for the ones who are not yet dead - this will force internal cache > reorganization, and then all references to empty pages will be removed. You need to call this also for slab to drain the caches and free the pages on the empty list. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
