From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.9]) (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 AA8A0635; Mon, 23 Sep 2024 02:50:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.9 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727059805; cv=none; b=GzZ6NFPLfrtSQ1YZZV0d0CwsgtgAQMII1cvu0vmq+Es8L/70pWY0dG5lz3b6cgJtBqLscgnAtUcnXz9fBdtb07eya46heBGIpWZHYDKfCCjJ2oWtYA9Jgo47SV59CaXoq8hEngu2Jd44Dxh772XZth5i5c+v8MSf8dS8CIF4dSw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727059805; c=relaxed/simple; bh=AbIUhT1ZYYeN9aZe2dqiL8aSYxV9m/x9TOPe0ZPOAmk=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=e7KThnrHXKgKxGszSF1TBVODEV/BwBLZPeVhycVAcV7ysyv4PYvC4CXbUl6u9vWjT97RLt2xtX/3O45Lc0kCoVwC58aEevU7gJ1jSNfpU4hCRadvAS42k8wmyY0gQzvRyt9vrMY9OYZ0afq7KQyxb6SJJWPk5aMQiugcYu/KsiQ= 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=Cf2rPPzG; arc=none smtp.client-ip=192.198.163.9 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="Cf2rPPzG" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1727059803; x=1758595803; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=AbIUhT1ZYYeN9aZe2dqiL8aSYxV9m/x9TOPe0ZPOAmk=; b=Cf2rPPzG/xU6UXvreQZEvLbpSXFikrH5mqbIHJIFjayA+it1YBvyi5ky jv7B1ioja1Ruv87lFYL76eG8R1munzr2lVIdL9xCj1mO21Wvdt+DL3G65 28u3n29a2JbHhllkrQ9rsaLymX1BwZe/3ucTbpB6iddbYAQs1y1HYX91q jlpI8pKE4fB//DJ3N0EzVG7HLV7T43l4dxApVG3YUQ3PJ/NdcPhd9rTZw PsSAwk+wqxFdjXApVFKrq2y4JEwJ+NhCacFOVL31LnS3N349kLzuXM4FY 6DvjMq9qa2Zzoa6sptM3910Sxe8qymslxGrAvnAzNii0YrP7C84zfN8Su g==; X-CSE-ConnectionGUID: XJmRGypeQ2mfXPxI6cAyIA== X-CSE-MsgGUID: Z6a7SmZkRVeXP/aPmXKSfg== X-IronPort-AV: E=McAfee;i="6700,10204,11202"; a="36653083" X-IronPort-AV: E=Sophos;i="6.10,250,1719903600"; d="scan'208";a="36653083" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by fmvoesa103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Sep 2024 19:50:03 -0700 X-CSE-ConnectionGUID: ZC1uPhShSxes3TqMIof39g== X-CSE-MsgGUID: fegKci+3T1a7PzGCwm6lVw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,250,1719903600"; d="scan'208";a="70956908" Received: from dapengmi-mobl1.ccr.corp.intel.com (HELO [10.124.231.84]) ([10.124.231.84]) by orviesa009-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Sep 2024 19:50:01 -0700 Message-ID: <61d6d709-209a-432a-94ee-e999c50c847e@linux.intel.com> Date: Mon, 23 Sep 2024 10:49:58 +0800 Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [linus:master] [perf/x86/intel] 25dfc9e357: kvm-unit-tests-qemu.pmu.fail To: "Liang, Kan" , kernel test robot Cc: oe-lkp@lists.linux.dev, lkp@intel.com, linux-kernel@vger.kernel.org, Thomas Gleixner , Li Huafei , linux-perf-users@vger.kernel.org References: <202409201525.4877023e-oliver.sang@intel.com> Content-Language: en-US From: "Mi, Dapeng" In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 9/20/2024 9:27 PM, Liang, Kan wrote: > > On 2024-09-20 3:50 a.m., kernel test robot wrote: >> >> Hello, >> >> kernel test robot noticed "kvm-unit-tests-qemu.pmu.fail" on: >> >> commit: 25dfc9e357af8aed1ca79b318a73f2c59c1f0b2b ("perf/x86/intel: Limit the period on Haswell") > This should only impact the period wrote to a counter. > There is no functional change. > > As far as I know, the kvm-unit-tests-qemu.pmu directly manipulates the > counters. It should not be impacted by the perf changes. That's weird. We found KUT/pmu test cases could cause many false positives, especially on some new Platforms, like SPR/EMR. We already have a patch series to fix these false positives, but unfortunately it's still not merged. Here is the patch series link. Thanks. https://lore.kernel.org/all/20240914101728.33148-1-dapeng1.mi@linux.intel.com/ > >> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master >> >> [test failed on linus/master 3352633ce6b221d64bf40644d412d9670e7d56e3] >> [test failed on linux-next/master 5acd9952f95fb4b7da6d09a3be39195a80845eb6] >> >> in testcase: kvm-unit-tests-qemu >> version: >> with following parameters: >> >> >> >> >> compiler: gcc-12 >> test machine: 8 threads 1 sockets Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz (Haswell) with 16G 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/202409201525.4877023e-oliver.sang@intel.com >> >> >> ... >> PASS msr (1836 tests) >> FAIL pmu (143 tests, 24 unexpected failures, 14 skipped) <--- > Is there a list to show which checks are failed? > > Thanks, > Kan > >> PASS pmu_lbr (3 tests) >> SKIP pmu_pebs (1 tests, 1 skipped) >> ... >> >> >> >> The kernel config and materials to reproduce are available at: >> https://download.01.org/0day-ci/archive/20240920/202409201525.4877023e-oliver.sang@intel.com >> >> >>