Messages in this thread |  | | | Date | Fri, 15 Oct 2004 01:58:45 +0200 | | From | Andrea Arcangeli <> | | Subject | Re: per-process shared information |
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On Thu, Oct 14, 2004 at 06:47:11PM -0300, Marcelo Tosatti wrote: > > Hi Andrea! > > No useful comments on the statm reporting issue. > > > Ps. if somebody like Hugh volunteers implementing it, you're very > > welcome, just let me know (I'll eventually want to work on the oom > > handling too, which is pretty screwed right now, > > Yes, we've got reports of bad OOM killing behaviour (is that what you're > talking about?) > > One thing is the removal of "if (nr_swap_pages > 0) goto out" from oom_kill() > causes problems (spurious oom kill). > > We need to throttle more, on page reclaiming progress I think. > > Take a look at > > http://marc.theaimsgroup.com/?l=linux-mm&m=109587921204602&w=2 > > What else you're seeing? > > > I've plenty of bugs > > open on that area and the lowmem zone protection needs a rewrite too to > > be set to a sane default value no matter the pages_lows etc..). > > Nick has been working on that lately I think. What is the problem?
things went worse with the switch from 2.6.8 to 2.6.9-rc, so that's not the nr_swap_pages > 0, likely the latest changes introduced regressions instead of fixing them. I'm seeing both hard deadlocks and suprious oom kills, and that all makes sense, I can see the bugs, it's just I need to fix them, my plan is to forward port some code from 2.4 which works fine, objrmap will make it even better. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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