From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.13]) (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 03B5EEEB1; Tue, 8 Apr 2025 02:13:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.13 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744078395; cv=none; b=t23fQZ0+KraT1rZuVit5NV37XqbkOO7o0PTfuGl25h/FoA2wpGlr6BGwIHIu4ZwM2AuHHtYvylIC076an/kHu0QgE7O4MG5kV3crLBKrNOw8+ifNhAEPhA0HXWJeQJ+CVCYQz/ZB9lZTAtvejZDxGm+6CHELXPXsPgnZN6vi6Zk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744078395; c=relaxed/simple; bh=9j44GVZXTsxQbV1gLmy2/Nifp26hHhQw0Oj1EkUngWk=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=WrotvIyogD3fjrfRVK3iurthsaL+42HbZrwdxxHhbKPAJuY1eC8FjM8lKD7eVuTzGDvblsTflCvHficBdPhacxVUofydbQSjWYACc52ppNOXDU3lboyHfNyD4nWHfANIhY148yNH0UYdckgVviXujnw5B/z93xL/mN89DVrlRe0= 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=kTyJ0lXn; arc=none smtp.client-ip=198.175.65.13 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="kTyJ0lXn" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1744078394; x=1775614394; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=9j44GVZXTsxQbV1gLmy2/Nifp26hHhQw0Oj1EkUngWk=; b=kTyJ0lXn8FggOkp9lJ5HQw7vSSSOIWxyjYdj4I7Akl/lttO9oK1tDstK vIwNEn4khRca9ItczO0e3YuguS40+hInKB9tNjye29AIsBzVwJh+T4LFq 2fLkNFddJPPWI1VIY/nTNNDoTbZV0LcyaL5bje9L0apjiHlhPDjmaXz5/ TT5YOMFD8EhaPTTDEE83GwOb/dwz6VB5KAYdrNjEx5nbPsXkqEWla2n65 dstNzxybhKs2ZMm6WBdpx3xZSG7Vwe1japn/kQf5canEAWIsKp9WXEBCu zq/xVh1O+6RnkyPn43K5iIBy8YxycSLm2Q28H/q9qtCJw/xa0+j0eUGAJ g==; X-CSE-ConnectionGUID: NJdm06HDRhW2+yZeq6X/PA== X-CSE-MsgGUID: ar1qmPbcRx+1q4SI18zz0w== X-IronPort-AV: E=McAfee;i="6700,10204,11397"; a="56472615" X-IronPort-AV: E=Sophos;i="6.15,196,1739865600"; d="scan'208";a="56472615" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Apr 2025 19:13:13 -0700 X-CSE-ConnectionGUID: KnRmpdJGTeC2IFq3rDHTbQ== X-CSE-MsgGUID: eK45jMtEQOuNMuBhEszB6Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,196,1739865600"; d="scan'208";a="127999199" Received: from dapengmi-mobl1.ccr.corp.intel.com (HELO [10.124.245.128]) ([10.124.245.128]) by fmviesa006-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Apr 2025 19:13:11 -0700 Message-ID: <418fff05-a0d9-4ead-b344-7b0b7fdb7f7f@linux.intel.com> Date: Tue, 8 Apr 2025 10:13:07 +0800 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: "Liang, Kan" , kernel test robot 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: "Mi, Dapeng" In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 4/7/2025 10:38 PM, Liang, Kan wrote: > > 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? Sure. I would investigate it later. > > 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 >> >> >>