Messages in this thread | | | Date | Thu, 21 Sep 2006 15:41:05 -0700 | From | Andrew Morton <> | Subject | Re: [RFC] page fault retry with NOPAGE_RETRY |
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On Fri, 22 Sep 2006 08:05:04 +1000 Benjamin Herrenschmidt <benh@kernel.crashing.org> wrote:
> > So I think there's a nasty DoS here if we permit infinite retries. But > > it's not just that - there might be other situations under really heavy > > memory pressure where livelocks like this can occur. It's just a general > > robustness-of-implementation issue. > > Got it. Now, changing args to no_page() will be a pretty big task.... >
Not as big as removing the pt_regs arg from every interrupt handler ;)
But pretty mechanical. Problem is, I don't think we have our mechanic. - 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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