Messages in this thread |  | | | Date | Tue, 11 Dec 2001 15:01:19 +0100 | | From | Andrea Arcangeli <> | | Subject | Re: 2.4.16 & OOM killer screw up (fwd) |
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On Tue, Dec 11, 2001 at 03:59:22PM +0200, Abraham vd Merwe wrote: > Hi Andrea! > > > > > > In my swapless testing, I burnt HUGE amounts of CPU in flush_tlb_others(). > > > > > So we're madly trying to swap pages out and finding that there's no swap > > > > > space. I beleive that when we find there's no swap left we should move > > > > > the page onto the active list so we don't keep rescanning it pointlessly. > > > > > > > > yes, however I think the swap-flood with no swap isn't a very > > > > interesting case to optimize. > > > > > > Running swapless is a valid configuration, and the kernel is doing > > > > I'm not saying it's not valid or non interesting. > > > > It's the mix "I'm running out of memory and I'm swapless" that is the > > case not interesting to optimize. > > > > If you're swapless it means you've enough memory and that you're not > > running out of swap. Otherwise _you_ (not the kernel) are wrong not > > having swap. > > The problem is that your VM is unnecesarily eating up memory and then wants > swap. That is unacceptable. Having 90% of your memory in buffers/cache and > then the OOM killer kicks in because nothing is free is what we're moaning > about.
Dear, Abraham please apply this patch:
ftp://ftp.us.kernel.org/pub/linux/kernel/people/andrea/kernels/v2.4/2.4.17pre4aa1.bz2
on top of a 2.4.17pre4 and then recompile, try again and send me a bugreport if you can reproduce. thanks,
Andrea - 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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