From: Peter Zijlstra <peterz@infradead.org>
To: Stephane Eranian <eranian@google.com>
Cc: mingo@elte.hu, linux-kernel@vger.kernel.org, paulus@samba.org,
robert.richter@amd.com, fweisbec@gmail.com,
Arnaldo Carvalho de Melo <acme@infradead.org>
Subject: Re: [PATCH 3/5] perf, x86: Disable PEBS on clowertown chips
Date: Fri, 05 Mar 2010 20:37:42 +0100 [thread overview]
Message-ID: <1267817862.4942.7.camel@laptop> (raw)
In-Reply-To: <bd4cb8901003051128l67a52d38h17208ec340b86c4e@mail.gmail.com>
On Fri, 2010-03-05 at 11:28 -0800, Stephane Eranian wrote:
> On Fri, Mar 5, 2010 at 11:15 AM, Peter Zijlstra <peterz@infradead.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.
next prev parent reply other threads:[~2010-03-05 19:37 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-05 15:39 [PATCH 0/5] PEBS and LBR fixes Peter Zijlstra
2010-03-05 15:39 ` [PATCH 1/5] perf: Rework the arch CPU-hotplug hooks Peter Zijlstra
2010-03-10 13:10 ` [tip:perf/urgent] perf: Rework and fix " tip-bot for Peter Zijlstra
2010-03-05 15:39 ` [PATCH 2/5] perf, x86: Fix silly bug in data store buffer allocation Peter Zijlstra
2010-03-10 13:20 ` [tip:perf/pebs] " tip-bot for Peter Zijlstra
2010-03-05 15:39 ` [PATCH 3/5] perf, x86: Disable PEBS on clowertown chips Peter Zijlstra
2010-03-05 18:58 ` Stephane Eranian
2010-03-05 19:15 ` Peter Zijlstra
2010-03-05 19:28 ` Stephane Eranian
2010-03-05 19:37 ` Peter Zijlstra [this message]
2010-03-05 21:05 ` Peter Zijlstra
2010-03-05 21:22 ` Stephane Eranian
2010-03-05 21:35 ` Peter Zijlstra
2010-03-05 21:38 ` Stephane Eranian
2010-03-05 21:43 ` Peter Zijlstra
2010-03-05 21:57 ` Stephane Eranian
2010-03-05 22:25 ` Peter Zijlstra
2010-03-05 22:33 ` Stephane Eranian
2010-03-10 13:21 ` [tip:perf/pebs] perf, x86: Disable PEBS on clovertown chips tip-bot for Peter Zijlstra
2010-03-05 15:39 ` [PATCH 4/5] perf, x86: Clear the LBRs on init Peter Zijlstra
2010-03-10 13:21 ` [tip:perf/pebs] " tip-bot for Peter Zijlstra
2010-03-05 15:39 ` [PATCH 5/5] perf, x86: Robustify PEBS fixup Peter Zijlstra
2010-03-10 13:21 ` [tip:perf/pebs] " tip-bot for Peter Zijlstra
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