On Wed, 2015-06-03 at 11:37 +0800, Zefan Li wrote:
> I think 3.2 and 3.4 need to backport 43d77867a4f3 ("slub: refactoring unfreeze_partials()")
>
> On 3.4 kernel, we found there are tens of thousands of free task_struct slabs
> in the partial list of node 0 when they should have been discarded, which is
> essentially a huge memory leak.
>
> Looking into the code, seems the cause is, we check n->nr_partial but the page
> might be in n2 where n != n2, and then the page is added to n2->partial though
> n2->partial > s->min_partial.
[...]
Thanks, I've queued this up for 3.2 with a small adjustment.
Ben.
--
Ben Hutchings
One of the nice things about standards is that there are so many of them.
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