2.6.39-rc4+: oom-killer busy killing tasks

[Christian Kujau]

On Fri, 22 Apr 2011 at 11:58, Minchan Kim wrote:
> But I wonder why VM can't reclaim the pages. As I see the log, there
> are lots of slab pages(710M) in DMA zone while LRU pages are very
> small. SLAB pages are things VM has a trouble to reclaim. I am not
> sure 710M of SLAB is reasonable size. Don't you have experience same
> problem in old kernel?

No, I forgot to add 2.6.38 (and before) did not show that behaviour.

> If you see the problem first in 2.6.39-rc4, maybe it would be a
> regression(ex, might be slab memory leak)

I would think so. I'll try to bisect, but with one compilation taking 
~20min on this box, this might take a while.

> Could you get the information about slabinfo(ex, cat /proc/slabinfo)
> right before OOM happens.

When it happens again, I'll try to get this.

Thanks for replying,
Christian.
-- 
BOFH excuse #73:

Daemons did it