Re: OOM-killer and strange RSS value in 3.9-rc7

David Rientjes
2014-01-21T22:12:51Z

On Mon, 6 Jan 2014, Wanpeng Li wrote:

> >Is there any progress against slub's fix?
> >
> >MemTotal: 7760960 kB
> >Slab: 7064448 kB
> >SReclaimable: 143936 kB
> >SUnreclaim: 6920512 kB
> >
> >112084 10550 9% 16.00K 3507 32 1795584K kmalloc-16384
> >2497920 48092 1% 0.50K 19515 128 1248960K kmalloc-512
> >6058888 89363 1% 0.19K 17768 341 1137152K kmalloc-192
> >114468 13719 11% 4.58K 2082 55 532992K task_struct
> >
>
> This machine has 200 CPUs and 8G memory. There is an oom storm, we are
> seeing OOM even in boot process.
>

Is this still a problem with 3.9 and later kernels? Please try to
reproduce it on 3.13.

If it does reproduce, could you try to pinpoint the problem with kmemleak?
Look into Documentation/kmemleak.txt which should identify where these
leaks are coming from with your slab allocator of choice.