Re: [PATCH] mm: count only reclaimable lru pages

[Rik van Riel]

David Howells wrote:
> Wu Fengguang <fengguang.wu@xxxxxxxxx> wrote:
>
> > It can greatly (and correctly) increase the slab scan rate under high memory
> > pressure (when most file pages have been reclaimed and swap is full/absent),
> > thus avoid possible false OOM kills.
>
> I applied this to my test machine's kernel and rebooted.  It hit the OOM
> killer a few seconds after starting msgctl11 .  Furthermore, it was not then
> responsive to SysRq+b or anything else and had to have the magic button
> pushed.

It's part of a series of patches, including the three
posted by Kosaki-san last night (to track the number
of isolated pages) and the patch I posted last night
(to throttle reclaim when too many pages are isolated).

--
All rights reversed.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/