Messages in this thread | | | From | Nick Piggin <> | Subject | Re: race with page_referenced_one->ptep_test_and_clear_young and pagetable setup/pulldown | Date | Sun, 7 Oct 2007 19:52:29 +1000 |
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On Friday 05 October 2007 12:44, Andrew Morton wrote: > On Thu, 04 Oct 2007 18:43:32 -0700 Jeremy Fitzhardinge <jeremy@goop.org> wrote: > > David's change 10a8d6ae4b3182d6588a5809a8366343bc295c20, "i386: add > > ptep_test_and_clear_{dirty,young}" has introduced an SMP race which > > affects the Xen pv-ops backend. > > y'know, I think I think it's been several years since I saw a report of an > honest to goodness, genuine SMP race in core kernel. We used to be > infested by them, but the term has fallen into disuse. Interesting, but > OT.
Does that include data races on weakly ordered systems, or UP races (ie. with sleeping locks rather than spinning ones)? ;) Because we had and have a few of those... - 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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