From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 80B5D1F63F0; Mon, 7 Apr 2025 14:38:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.19 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744036738; cv=none; b=QxfaSpmB4Au0+oiQv66VEIrTvQMqhgU67MYiIzUKmVbAg+z0GOK9+Il/eY3i2/tvxFmINEoFRmK7n5lXpf17DD1ggj8/N4rd+Y2f31QPM9O0FKzGPvotpxuV69tnJWSaDb8eNM9wOKZS4Q12D76iqtWJSb7UOWTirMdWDZMPdz4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744036738; c=relaxed/simple; bh=v0CkWDkwF9G6LUp8uQSKwk1DnyOq5vA/pKSgSCmoEmQ=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=ZGzC2zgQ49SBRL54ICpnSNUbfBvy56borXh9lbAiiMPR1TPKooRKFWzxnedFfNnc4s+NJeZwaqNL2H/hFQxGyP91bPIcw7vwaXOaOoaQgGWDANnBt74k5JJdbLYovxEDYr6Oi6i0V7TQ6r0wauR37/EzjRNjnGqs82uZFjpY7LA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=BlBkOwui; arc=none smtp.client-ip=198.175.65.19 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="BlBkOwui" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1744036737; x=1775572737; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=v0CkWDkwF9G6LUp8uQSKwk1DnyOq5vA/pKSgSCmoEmQ=; b=BlBkOwuicBYvi5J8rKtzpghkrOGuq7P4WsOBsCFj6SP0McE3PsfJGCuc I4PjdpdeM0A21xjSA75+FGvJLnA/TQtsZ7+Ox15vEaJwzpai658JuY73N WKpXtqDAF2Xm0fo9sIV+QzXRRMF1sjO2wVk9GpenaOM7fsaYM0TtiV0CL ncY1wh5hbk0Khy01+b1yn8o/frTXBTLQC4tyqqSGCgDFB1LXgmYbyXmbf 2d+bylC0HSS9jYEZ6WkY6Zl1rmPHdyhY5majSXeS/brJpP+JSpweKA/jX f1chs2eszW7QtqX2A+sJvd9rQ2rz7JEH7iDtDHCBwrtn6qTJU8Xt0AkzN A==; X-CSE-ConnectionGUID: F+GnsYhKT3G0xNEDA92ksA== X-CSE-MsgGUID: axv900V4TGOnp11cnLc20g== X-IronPort-AV: E=McAfee;i="6700,10204,11397"; a="45317020" X-IronPort-AV: E=Sophos;i="6.15,194,1739865600"; d="scan'208";a="45317020" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Apr 2025 07:38:57 -0700 X-CSE-ConnectionGUID: Gm/frhL9SNWGIx0q/Dk7nA== X-CSE-MsgGUID: iuYdIwZ3SeGfplcDZKcLUw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,194,1739865600"; d="scan'208";a="127727480" Received: from linux.intel.com ([10.54.29.200]) by orviesa009.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Apr 2025 07:38:56 -0700 Received: from [10.246.136.14] (kliang2-mobl1.ccr.corp.intel.com [10.246.136.14]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by linux.intel.com (Postfix) with ESMTPS id F01AA20B5736; Mon, 7 Apr 2025 07:38:54 -0700 (PDT) Message-ID: Date: Mon, 7 Apr 2025 10:38:53 -0400 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [linus:master] [perf/x86] 88ec7eedbb: kvm-unit-tests.pmu_lbr.fail To: kernel test robot , Dapeng Mi Cc: oe-lkp@lists.linux.dev, lkp@intel.com, linux-kernel@vger.kernel.org, Ingo Molnar , Ravi Bangoria , Peter Zijlstra , linux-perf-users@vger.kernel.org References: <202504071232.3c2fa7d5-lkp@intel.com> Content-Language: en-US From: "Liang, Kan" In-Reply-To: <202504071232.3c2fa7d5-lkp@intel.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 2025-04-07 1:07 a.m., kernel test robot wrote: > > > Hello, > > kernel test robot noticed "kvm-unit-tests.pmu_lbr.fail" on: > > commit: 88ec7eedbbd21cad38707620ad6c48a4e9a87c18 ("perf/x86: Fix low freqency setting issue") > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master > > [test failed on linus/master 0a87d6bb6fd274cde3bf217a821153714374198f] > [test failed on linux-next/master fefb886b1344e222b3218f3c0165b0fd770e8b88] > > in testcase: kvm-unit-tests > version: kvm-unit-tests-x86_64-69574079-1_20250322 > with following parameters: The one line patch only impacts the perf record. But the test case is for LBR on KVM. The case directly access the IA32_DEBUGCTLMSR to enable/disable LBRs. There is nothing related. It is probably a false alarm. + Dapeng Could you please take a look at the qemu test case? Thanks, Kan> > > config: x86_64-rhel-9.4-func > compiler: gcc-12 > test machine: 8 threads 1 sockets Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz (Haswell) with 8G memory > > (please refer to attached dmesg/kmsg for entire log/backtrace) > > > If you fix the issue in a separate patch/commit (i.e. not just a new version of > the same patch/commit), kindly add following tags > | Reported-by: kernel test robot > | Closes: https://lore.kernel.org/oe-lkp/202504071232.3c2fa7d5-lkp@intel.com > > > ... > PASS pmu (143 tests, 14 skipped) > FAIL pmu_lbr (2 tests, 1 unexpected failures) <--- > SKIP pmu_pebs (1 tests, 1 skipped) > ... > > > one log is attached. > > > The kernel config and materials to reproduce are available at: > https://download.01.org/0day-ci/archive/20250407/202504071232.3c2fa7d5-lkp@intel.com > > >