Re: [PATCH V2] MCE: fix an error of mce_bad_pages statistics

[Simon Jeons]

On Tue, 2012-12-11 at 03:03 +0100, Andi Kleen wrote:
> > IIUC, soft offlining will isolate and migrate hwpoisoned page, and this
> > page will not be accessed by memory management subsystem until unpoison,
> > correct?
> 
> No, soft offlining can still allow accesses for some time. It'll never kill
> anything.

Oh, it will be putback to lru list during migration. So does your "some
time" mean before call check_new_page?

	               -Simon 

> 
> Hard tries much harder and will kill.
> 
> In some cases (unshrinkable kernel allocation) they end up doing the same
> because there isn't any other alternative though. However these are
> expected to only apply to a small percentage of pages in a typical
> system.
> 
> -Andi


--
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/