Re: [PATCH] oom: OOM-Killed process don't invoke pagefault-oom

From: KOSAKI Motohiro
Date: Mon Jan 18 2010 - 03:21:35 EST


> On Fri, Jan 15, 2010 at 03:21:40PM +0900, KOSAKI Motohiro wrote:
> > > Hi,
> > >
> > > I don't think this should be required, because the oom killer does not
> > > kill a new task if there is already one in memdie state.
> > >
> > > If you have any further tweaks to the heuristic (such as a fatal signal
> > > pending), then it should probably go in select_bad_process() or
> > > somewhere like that.
> >
> > I see, I misunderstood. very thanks.
>
> Well, it *might* be a good idea to check for fatal signal pending
> similar your patch. Because I think there could be large latency between
> the signal and the task moving to exit state if the process is waiting
> uninterruptible in the kernel for a while.
>
> But if you do it in select_bad_process() then it would work for all
> classes of oom kill.

Thank you for good advise. I'll make next version so :)



--
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/