From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.7]) (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 369FDDDD2 for ; Thu, 16 Oct 2025 04:44:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=192.198.163.7 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760589871; cv=fail; b=s+Co6VsgFCFlrlSRndN3aYNPWZeXbzv6vYZw8NOH+RQHceMK+jBvuf2+wFDguYkW24BHXkkK7AZs2ac1KvOuF8Ud6XMEmwXPn3ycTvj0AkthAuuf+R6aBetxK+cmYnEB4BjpbbAvBKfy5wf/LoUE0v1OGDsShGHK40+sQiNZEyA= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760589871; c=relaxed/simple; bh=CNCbmP6GeWbyxFHhDl0k7+Q9lA6sLFLhIoGddUdXKcc=; h=Message-ID:Date:Subject:To:CC:References:From:In-Reply-To: Content-Type:MIME-Version; b=HSyQo68J0JHIvjmR6a7mcKu0oT3yepcFe0FfzMjwZvlZjrzJIhnlNc9HlN+f6/CentBvvLUr4A4cUgDYte/4DkLL2iR5sipWVO6iiomBsnpeVtaPhjt1jFBG9aVLMiOXjZeKnnmpb+z7TmaeP18IGv1InRf4teL6V0MRjpv0lmE= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=EPVfNYeB; arc=fail smtp.client-ip=192.198.163.7 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="EPVfNYeB" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1760589870; x=1792125870; h=message-id:date:subject:to:cc:references:from: in-reply-to:content-transfer-encoding:mime-version; bh=CNCbmP6GeWbyxFHhDl0k7+Q9lA6sLFLhIoGddUdXKcc=; b=EPVfNYeBgdWBSUAnJboMEzp7oTesx6uB4Qle3qPENiEZmpe7SwjTu9vm 03jF9iCLN7YDKWM+kGKggiT1paa3FzUK0pliyaYMUAuwfd7LSHMX2hY4y EOsKf6P/plUxLrFZsrvSqNPhJZnZB5yOlv2tl3FoUV5oP/5UmVBZp/H2j LOw+NTqmXkNRfqRL0iD49IeW7zjXbThVX35u0f0t76ocVKhXccAaTpYE2 LCHE+l9Pdp2akht80+WLVO/iNkY9KNoPRUPbnXFilyjxyHN/E1z7bItuV 9Jcl0PrRcYZseSYX4etS0LspmJa77EgnxOzXQgHdfChIT+s5/qP3PcfNz Q==; X-CSE-ConnectionGUID: 0JpsjeC2TLufd++ZW2mFnQ== X-CSE-MsgGUID: g8Cjq6swTpOtNCGykCPlVA== X-IronPort-AV: E=McAfee;i="6800,10657,11583"; a="88241902" X-IronPort-AV: E=Sophos;i="6.19,233,1754982000"; d="scan'208";a="88241902" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by fmvoesa101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Oct 2025 21:44:29 -0700 X-CSE-ConnectionGUID: UBO+pxXDTu6Au4td90O8DA== X-CSE-MsgGUID: +dsvBT9zSyOZtixtO3001Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.19,233,1754982000"; d="scan'208";a="212947999" Received: from fmsmsx902.amr.corp.intel.com ([10.18.126.91]) by orviesa002.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Oct 2025 21:44:28 -0700 Received: from FMSMSX902.amr.corp.intel.com (10.18.126.91) by fmsmsx902.amr.corp.intel.com (10.18.126.91) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.27; Wed, 15 Oct 2025 21:44:27 -0700 Received: from fmsedg902.ED.cps.intel.com (10.1.192.144) by FMSMSX902.amr.corp.intel.com (10.18.126.91) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.27 via Frontend Transport; Wed, 15 Oct 2025 21:44:27 -0700 Received: from DM5PR21CU001.outbound.protection.outlook.com (52.101.62.22) by edgegateway.intel.com (192.55.55.82) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.27; Wed, 15 Oct 2025 21:44:26 -0700 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=YWDP1+6PXzmD66ep6KUAaiPQx+xriOGUfQkvmSKzUq5AygQPO157cqodUyMRV4Ktz4pmYj9yRgOuOvyg67F2ybLbjBU0n4GPMa6od0TzFYXHcg5wY26bpaiqd1YMDcPKVHpnOhHU4yXg1Bcq2jywoYFI0H7i/WiXC+6nvrsOxW/lI2rYOyyL1EMjJzYke8cJicdUinavwEhb2qnCDq4dLA8fP2b0cSIy/dZiZvTCuJaLX05KGjmWhRiO/RQg7K6r8PYiK5qPwyt0Lto5J/V1VyKsSNd7QIILDmxrlEvx9WHUsn3JbSjgvSabd7sIsK04XJ2L2i0X78c8tHUPt8R0og== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=JAPvgzU7l+lbaJaAq7Hn9izTs/tS7Mx8Tp7dleH9BYg=; b=qIupIjLHCDlk+jUhuXuZFAQSThj3RgPvbtBovfvUwFFqQ/SECIQVbsm1AVFrM6vij8zGT/bA0kt+F/jXZtOr75VgbOJotswdmWyvskYOV+4+sVsU5mDxna/C6WGjJBm8dglaI/a0GdxoGC0tHFpbgjRQHGVXDRIImX3L8BII8t3lsLDCDRXHfN1iN22gjTZ9AiB0OpuNbsHYRLajDXzvWala+ze2U0MClFVJAxlHSUi9yGfih+P+Pjs+Ra8enZRBD7eYSQKMNMYmtr+1UOOPz3w8ggbXFgsRcRZs6ge2v6FP8/Q+pqxcaes/Wegln1PoZQmixZmToQV312Cq1lhi5Q== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=intel.com; dmarc=pass action=none header.from=intel.com; dkim=pass header.d=intel.com; arc=none Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=intel.com; Received: from DM4PR11MB6020.namprd11.prod.outlook.com (2603:10b6:8:61::19) by PH0PR11MB5128.namprd11.prod.outlook.com (2603:10b6:510:39::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9228.12; Thu, 16 Oct 2025 04:44:24 +0000 Received: from DM4PR11MB6020.namprd11.prod.outlook.com ([fe80::4af6:d44e:b6b0:fdce]) by DM4PR11MB6020.namprd11.prod.outlook.com ([fe80::4af6:d44e:b6b0:fdce%5]) with mapi id 15.20.9228.010; Thu, 16 Oct 2025 04:44:24 +0000 Message-ID: Date: Thu, 16 Oct 2025 12:44:10 +0800 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 18/19] sched/fair: Avoid cache-aware scheduling for memory-heavy processes To: kernel test robot , Tim Chen CC: , , , , Peter Zijlstra , "Ingo Molnar" , K Prateek Nayak , "Gautham R . Shenoy" , Vincent Guittot , Juri Lelli , "Dietmar Eggemann" , Steven Rostedt , Ben Segall , Mel Gorman , "Valentin Schneider" , Madadi Vineeth Reddy , Hillf Danton , Shrikanth Hegde , Jianyong Wu , Yangyu Chen , Tingyin Duan , Vern Hao , Len Brown , Aubrey Li , Zhao Liu , Chen Yu , Libo Chen , Adam Li , Tim Chen References: <202510151429.2c3f3413-lkp@intel.com> Content-Language: en-US From: "Chen, Yu C" In-Reply-To: <202510151429.2c3f3413-lkp@intel.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: SI2P153CA0029.APCP153.PROD.OUTLOOK.COM (2603:1096:4:190::16) To DM4PR11MB6020.namprd11.prod.outlook.com (2603:10b6:8:61::19) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM4PR11MB6020:EE_|PH0PR11MB5128:EE_ X-MS-Office365-Filtering-Correlation-Id: 13b11d0d-b9f3-4e74-f1b4-08de0c6eae47 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|366016|1800799024; X-Microsoft-Antispam-Message-Info: =?utf-8?B?UUR1RmtzT211a0pVK0FiM1VEZHBYaE5YYUZWQXlBcUVac0FmZUp4T3RBYXdo?= =?utf-8?B?MjNlTk54Uklhby83VGU3M0ZDZ3VCTmpRR1lsL0FiV24vb3pIREpMWlJJaFlP?= =?utf-8?B?WmJtQ24rL1NxSzl1NW5qMmpUaURuQWxSdlpJalBpcHYwU0NiSzZ4K0o2M1d0?= =?utf-8?B?eUNyWW1NOUhPL1cvMFZsVXF1TXl3WlBhOE5NM20rSWFTQTNjWkEvSUR6dDNm?= =?utf-8?B?QzVnaWxXdlZQemxDT056WnRtb3dHT095bVRqWjVEakhMNVJacFUwTmpXSW9L?= =?utf-8?B?TkYwckcxaDBINTNQTldvUS9RcGdZN2ZCT01XV2VxWjB3R1hUbFVvNUpVYUpE?= =?utf-8?B?S3JoMnlNR1ZSM1ozdFpvWE5XOHJCeldJekhiekwzTUtrV2RYM0dnRU52TTV6?= =?utf-8?B?SlFDY2VxSTRTK29wbHAxZk9XK3kxd1J2TTZHR2xwRXZJWVFGR0Z0VnRjcVU5?= =?utf-8?B?MmgvTnFCeEM2cXIzR1BhVnduNHkzRU5VUW1hZFdxS24vaTJLSkJ0bEtkQ0ly?= =?utf-8?B?NGMzRDVLSkpGeHR4bEg1SkFPTzExQmVJUUNzZUxQMnE5YytsdmQ3bzE5eDlO?= =?utf-8?B?ZGZMbFgxMjBxVFZCNm92Vy93S0JieEFXU1BieDFIa1VOOFRtdzNLVFNWT05O?= =?utf-8?B?NWlES2xMWVA2UUpGT0NGSDBjaVVvVGljMUpaN3VHajRPSWxDSmZsQ01yVGxJ?= =?utf-8?B?TldyQUFJZEM5QmR5VzJscjVHNWY1c1ZMVU1zekNOM0RlMlN4b01ROTk0cGYx?= =?utf-8?B?U01LVjV5WDNJWk9oNW53K3VWSy9JQmcrcWc3ZU90NHI2b3Z6YWtYTHJMdi9l?= =?utf-8?B?OFN6eDZpSXdvelVsUHZyZTUzaUt2ZTZpL3pZc1pHVU5ZRkU2cDRycTI5RnAx?= =?utf-8?B?bXZZVDA4aDBsWUt1NGdiZHlTZk42ZmRieXJyQVEyaW4zazFUeFBTbUw4Z1ht?= =?utf-8?B?ZlByUXk5VVVZcU1TeEZUZG5VT3FSSktVWGI1ZUxIeUVXN3dWcnhOZTRyYnp0?= =?utf-8?B?SERucUJNU29laDlvczRENDNHbW9kVWw4ME16TlhPK0t0VDExak1kR0orN1N3?= =?utf-8?B?Rm51QWI4VWw2eTN3Z0hic0NMVWorYUJXWEFkamUrdGVDMnc4YkVDR1cvNjJw?= =?utf-8?B?RzJaNUFrY3Vnd3V2aVlwMzE0TG1FVXVhK1o1SlhPMk0wZlgveGR1RG4vc3Rw?= =?utf-8?B?c08rYmhKaEJvOFB2endpUWhRSlArYUJVYTcranZubHFPakx5YkhHU3RNYWxq?= =?utf-8?B?NXArcEhuQ2lVNlRtOXJWU2RKTUVCQ1ZuK0NXcmRTMFo2aHA0azJCVnQvbFNw?= =?utf-8?B?N0dzb043MFdWRTVnUmtjdFBWdlhsNi85c1B0ZEo5eDNCUDJyY1EwSnp6dmhk?= =?utf-8?B?NEZ6cXRjWnZMazlKLzZUczFhNzh4N25jVWxGay8wS0NabzZHT2c3cTdYL3kw?= =?utf-8?B?ajQxelhVVFkzN0w2dThHbnJNdG9tL09ZWW11MkdJWWN2Ri9jak93cFF2akYv?= =?utf-8?B?NG13cjhKUSt2Y3AxSXlON2lzaWR1TjBRc2ptQVdsRDJWdVkva2Y2b2p2SHhC?= =?utf-8?B?ZHpyMXcxT2pscVRPTmlDdDNFZnc2NkhpcnNFTi9qc2p0U3k0bktMUmcwSXFy?= =?utf-8?B?WnZpQTdoM25aWnpicmpLbDE5NjdQM3RuY3krd1dSTnZFQ0xnVHRhUExLc3ht?= =?utf-8?B?bUxoNENhWjlFZFozdHdQVzQ2b3BwTytUK2pTQTRrT2pBVE9RYWorSjFIZjJU?= =?utf-8?B?bENFa1lhT3dpRllGZCtob1AxN0VYUVNZYW9tWjV4Nlh3NVRndzJiUFhLaEVE?= =?utf-8?B?SU4yRjBROUFheFBEVnZ4ZEZCYjVzRUR1dGpyZ2JmcEEzcm1DSUMyVWRyeE9Z?= =?utf-8?B?akZ6emp5emMyTGFLU3NMUzZxNzBuMW00TVgrL3F3V2VqOHMxOS9aWkxIWXNU?= =?utf-8?Q?Q0yZxVh9qlvNmcLKL3tPQnqpTqdxXeZB?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DM4PR11MB6020.namprd11.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(376014)(7416014)(366016)(1800799024);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?L3NqaGxxTk5jUjRBemhHL1NQZ2ZjSDFteEpmc3A2MjYzZE9GQjVqdjc5WFIr?= =?utf-8?B?WnhwRFVweEZNRk9OTzNxVk1TT2ZJOW1oekJiUk1oWW90VTBqaVR3c1ByNXJJ?= =?utf-8?B?cUJHMDczeXdUV2hPZ3JadnBlNTQ2R3dCNUxXVkJITUhaVjRZdW5ydk5rZC9O?= =?utf-8?B?bzN2Zk9kNHBLem5FNXAxVHhiODIxdDJQS3I1eEhjeFdNM1pKWXh4NzRCbjlC?= =?utf-8?B?Vnl3bEtkanVpWEZkRU0zUDdCYVhjVUpPSEVpZTVLV3ZYdWZMdTh0c01kQ2JM?= =?utf-8?B?Z2RsV2Q0SElFVGRYdm4vMU4rUlppd2tiOEVPb0pkeCsyMFE5Uy9hQXIvQTlZ?= =?utf-8?B?SzBzR0FUVmd2VlkwcjVwa09LWW9mZ3lyd3RnME5LQ0N3My8wR3BKeGFKUWYy?= =?utf-8?B?R0tYYzJRTjhLU0RyczVBRnFSM0ZGVENTaitROWhwOSt2Ymg1MDAraEtSUUxp?= =?utf-8?B?MklEM3Q2YmlaK1ZrcExudkJabFpxVEVBaG80aXVpMGxTemZ6eFRkTzVEdStU?= =?utf-8?B?VWV3WUs0K01oSDR6VXNHbERJTllDcUlYb2R2Rk9tMkpCL0tpUzkrQWNCZC9I?= =?utf-8?B?citmbzNZNzg2ZXcza0l6N0NDSllrSlRRRkVqLzRlSWxQNDdqMzVrbGFYUG8v?= =?utf-8?B?MVVTQUFZZ0lTQXlHMURqYmcvOTFtRTFHaEtGcjZRWGxXdHNHUTBJTEdCeVJ4?= =?utf-8?B?SzlWTEhXMWs4Z2Iwc200VElKVzNKcHVod2dzUzd3TzZwRDBUUUdocG53OTEw?= =?utf-8?B?TC9EbTQxenlyT3hPL3VoTTIvRGorSGw3cUpQV0xxdCtQR21KZWdtcGMrZTBD?= =?utf-8?B?QUdadExRNUs4Q1FadjA1dE9YTzhJZWRqSlpCZVcvRm5FRkZoM0VVOW9CeUpV?= =?utf-8?B?VFVESmIvVlJzdTdoaXMxSjlQQ09LcnV4bTlVYlBpblVKTUphSGpCZWFJNG9H?= =?utf-8?B?ZGpBUzFVc2VaOGpEOENXRVorQW5BWEVzSmU3VjhYM3lUNlZQeWxmWTFhcmNw?= =?utf-8?B?RXBENDBoMnBtWnZ2eTdBOXNVSG1vMVcvSjAvUDUzbFEySXRTelhUaUdvTHBI?= =?utf-8?B?aUxZMjAwMFJJWHBnZ3JpQTFyTnI4US9mbWo1TmhHQWdwVUtnQWtJSDYrVE40?= =?utf-8?B?Qm0xcG1uYjd0QWtIbTQ2SlJYUlFRcGVhbFg4UzU3d0dIOFVuWjhlQ1d4OFUz?= =?utf-8?B?ZG5aMzFGQ1BHd3kwcDVGdGdlZnR1Q21JQTdmVzlHMVpEWnRaVDEvOFhQU1N5?= =?utf-8?B?SkJaMWUyc0VQZENzbHhKR2ZJekxpM1pTQ3hqRmt2MEd1a20zdmtKT0YvdEg5?= =?utf-8?B?V3hORUVmejdWa0pvWktHVFg3SmhIOWhCSlNqY3NkZCtLc3AxUzc5TVk5SGhx?= =?utf-8?B?ZUJvandJWVZwNWFNMUt4d0JyTGZHZW9Rd3hDTit6MUNXMDRLcUNtWndIZFYr?= =?utf-8?B?ZkJ4SkppM2F0Y0Vqbm5ES2lDRTVWd2lSV0o4T1hGR0tOM2JDN2V5ZWF5M0p1?= =?utf-8?B?QnJ2eW4rdHNjZlR2bXQ0RGg3Ry9QL0E1Z2R5UnBWR1dXRmtYZjlRcmpicTJE?= =?utf-8?B?RWQ0OVNJdnBvOERkTkg4ekFCYWhSOHl6cE5sTzlkZTNJbXRzdC9yckRaN1JY?= =?utf-8?B?M0FmWnZwdlhGbXpHVUFvSElNTXhMeU44WnJqeFg3T2FoVWwvdEYrTnVodW5U?= =?utf-8?B?c1pwaENwK0szZVoycVdDQVZRN1ljOHNJSlBCY2ZtZ0xHbGt0dDV0MVJ4L3hF?= =?utf-8?B?WG5qZjBqdGRReDQ1NExGRGdXdGtqT1E0UDRrNmdGL0tRZ01ndFJGalZOUC9m?= =?utf-8?B?UDhyU3RZQVROOHdGVmZ1ekY2SjUxOUJVMG03VCtMWEVhK25NZUpNZlpJeUNF?= =?utf-8?B?UzZQOTZyUFhFWWNTa1B0MW5kYVFmUHdYRzNiOTB6REMwaUM5NkN1K0FPbVdu?= =?utf-8?B?Z1Y0Z0VsdXZlUDNscmRibVdWMG8wT3VWNnQ4ZFg4NlZ6M1ZLSTVjbHNvdGx5?= =?utf-8?B?ZE1HRkxULzU5MU1aOFRTaHY0bUQwcUVtdnR0Y2VzZ0pSQ2tpV2JIUndzYm5u?= =?utf-8?B?bzJacnZWZUVZRWxpV0IrblorUkI1WFJVMktRczlZSnMrUk5zeVg5T1BEMkpp?= =?utf-8?Q?7nxOioYOhrlEgoyFlGjKDPl2d?= X-MS-Exchange-CrossTenant-Network-Message-Id: 13b11d0d-b9f3-4e74-f1b4-08de0c6eae47 X-MS-Exchange-CrossTenant-AuthSource: DM4PR11MB6020.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Oct 2025 04:44:24.6851 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: dZ/WcwRy1DJGxPBDF8s595yoi4at6D0/tjfm53cAdKTuSsDFCzuR82DRklEY7ogj3jcT3+4pR7xdnYqIcX/W4Q== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH0PR11MB5128 X-OriginatorOrg: intel.com On 10/15/2025 2:57 PM, kernel test robot wrote: > > > Hello, > > kernel test robot noticed "UBSAN:array-index-out-of-bounds_in_drivers/base/cacheinfo.c" on: [snip] > [ 12.549731][ T83] ------------[ cut here ]------------ > [ 12.550388][ T83] UBSAN: array-index-out-of-bounds in drivers/base/cacheinfo.c:37:9 > [ 12.551060][ T83] index 4294967295 is out of range for type 'unsigned long[8]' > [ 12.551580][ T83] CPU: 0 UID: 0 PID: 83 Comm: systemd-journal Not tainted 6.17.0-rc4-00035-ge8b871200f11 #1 PREEMPTLAZY > [ 12.551585][ T83] Call Trace: > [ 12.551588][ T83] __dump_stack (lib/dump_stack.c:95) > [ 12.551594][ T83] dump_stack_lvl (lib/dump_stack.c:123) > [ 12.551601][ T83] ubsan_epilogue.llvm.16751680356772289369 (lib/dump_stack.c:129 lib/ubsan.c:233) > [ 12.551607][ T83] __ubsan_handle_out_of_bounds (lib/ubsan.c:?) > [ 12.551621][ T83] get_cpu_cacheinfo (drivers/base/cacheinfo.c:?) > [ 12.551625][ T83] exceed_llc_capacity (include/linux/cacheinfo.h:? kernel/sched/fair.c:1256) Thanks 0day! It seems that for some reason the assignment of curr_cpu = task_cpu(p); was after the check exceed_llc_capacity(), will fix this. thanks, Chenyu