linux-kernel - Re: [PATCH] perf/x86/rapl: Fix Haswell and Broadwell server RAPL event

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Date:   Thu, 11 Jan 2018 20:54:37 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     kan.liang@...ux.intel.com
Cc:     mingo@...nel.org, Linux-kernel@...r.kernel.org, ak@...ux.intel.com
Subject: Re: [PATCH] perf/x86/rapl: Fix Haswell and Broadwell server RAPL
 event

On Thu, Jan 11, 2018 at 11:15:43AM -0800, kan.liang@...ux.intel.com wrote:
> From: Kan Liang <kan.liang@...ux.intel.com>
> 
> Perf-fuzzer triggers non-existent MSR access in RAPL driver on
> Haswell-EX.
> 
> Haswell/Broadwell server and client have differnt RAPL events.
> Since 'commit 7f2236d0bf9a ("perf/x86/rapl: Use Intel family macros for
> RAPL")', it accidentally assign RAPL client events to server.

Thanks!