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Date: Fri, 05 Mar 2010 20:37:42 +0100 From: Peter Zijlstra <peterz@...radead.org> To: Stephane Eranian <eranian@...gle.com> Cc: mingo@...e.hu, linux-kernel@...r.kernel.org, paulus@...ba.org, robert.richter@....com, fweisbec@...il.com, Arnaldo Carvalho de Melo <acme@...radead.org> Subject: Re: [PATCH 3/5] perf, x86: Disable PEBS on clowertown chips On Fri, 2010-03-05 at 11:28 -0800, Stephane Eranian wrote: > On Fri, Mar 5, 2010 at 11:15 AM, Peter Zijlstra <peterz@...radead.org> wrote: > > On Fri, 2010-03-05 at 10:58 -0800, Stephane Eranian wrote: > >> > case 15: /* original 65 nm celeron/pentium/core2/xeon, "Merom"/"Conroe" */ > >> > + x86_pmu.quirks = intel_clowertown_quirks; > >> > >> That's too coarse grain! > >> It is more subtle than this. Some of the errata are marked as Plan > >> fix. They seem to be > >> fixed in later models. Your looking at the E5xxx series errata but the > >> E7xxx do not have > >> the same problems. > > > > OK, I'll look at those errata again and try to come up with a stepping > > test for this errata. > > > There is erratum which you need to implement the workaround for and > this is AAJ91 on Nehalem. It does happen. Yes, I found that one too today. Its on my todo list. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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