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[130.111.218.23]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-6fd093decfbsm13710906d6.11.2025.06.20.09.12.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 20 Jun 2025 09:12:56 -0700 (PDT) From: Vince Weaver X-Google-Original-From: Vince Weaver Date: Fri, 20 Jun 2025 12:12:55 -0400 (EDT) To: "Liang, Kan" cc: Vince Weaver , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter Subject: Re: [perf] unchecked MSR access error: WRMSR to 0x3f1 In-Reply-To: Message-ID: <5a53490f-d4ec-85f7-4175-e148e02c3e67@maine.edu> References: <14d3167e-4dad-f68e-822f-21cd86eab873@maine.edu> <574b8701-9676-4aba-a85b-724c979b2efa@linux.intel.com> <7e8bb736-3955-c479-99de-e08efb494bdd@maine.edu> <8739c2c6-a27c-4ab6-ad74-8b95e258737e@linux.intel.com> <52656281-ab73-baf7-0a80-ebcbe79dfca2@maine.edu> <9aee2b65-e43a-4fcd-a929-a98269621315@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII On Fri, 20 Jun 2025, Liang, Kan wrote: > Thanks very much for the reproducer! The issue has been root-caused. > I've sent a patch to fix it. Please give it a try. > https://lore.kernel.org/lkml/20250620110406.3782402-1-kan.liang@linux.intel.com/ I've applied the patch and can no longer generat the issue with my tests. Thanks! Vince Tested-by: Vince Weaver