From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 28713D75BAA for ; Fri, 22 Nov 2024 10:04:01 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 95D1B6B00BB; Fri, 22 Nov 2024 05:04:00 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 90DE56B00BC; Fri, 22 Nov 2024 05:04:00 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 75F866B00BD; Fri, 22 Nov 2024 05:04:00 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id 523F76B00BB for ; Fri, 22 Nov 2024 05:04:00 -0500 (EST) Received: from smtpin11.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay04.hostedemail.com (Postfix) with ESMTP id EC5361A1782 for ; Fri, 22 Nov 2024 10:03:59 +0000 (UTC) X-FDA: 82813294032.11.1641F08 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.9]) by imf07.hostedemail.com (Postfix) with ESMTP id A61A740018 for ; Fri, 22 Nov 2024 10:02:41 +0000 (UTC) Authentication-Results: imf07.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b=APQpYvkl; arc=reject ("signature check failed: fail, {[1] = sig:microsoft.com:reject}"); spf=pass (imf07.hostedemail.com: domain of oliver.sang@intel.com designates 198.175.65.9 as permitted sender) smtp.mailfrom=oliver.sang@intel.com; dmarc=pass (policy=none) header.from=intel.com ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1732269684; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding:in-reply-to: references:dkim-signature; bh=3kgyOsb/u6MvTpO4yhsSK48zLtbUlheeL9EcLDKjPd4=; b=uyaZ6+zDeJyI16sOXqosuPoCYgJs/phBhOBURBgZcqVtwLO+J9j7E2CxqMH+OtLnvrMlec I6Chv4TXCEjihrZZrF+MdoSrY6BLY3pOIF5gCB5cIy7wC7j87Kqe+ce9Wf9SLnXG/XVMVW QcLdPl1NgnDIbeo4TH+ci/4euXdnQbw= ARC-Seal: i=2; s=arc-20220608; d=hostedemail.com; t=1732269684; a=rsa-sha256; cv=fail; b=6me60hLC76pjiYIUEewyyLf73ePyBc4oNieOGof2j1BNF4a9gWFd/CUxGKVwawEtK4/wWQ o+f+m6JlUuekLkq/taS0EyYQu6uFx+7O/A/B2bOr86O92C8ej1xUxyNkmXaCMmffV6KMsA GxX0irJ68VvAk75O7v+mbRT8b7MQPBs= ARC-Authentication-Results: i=2; imf07.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b=APQpYvkl; arc=reject ("signature check failed: fail, {[1] = sig:microsoft.com:reject}"); spf=pass (imf07.hostedemail.com: domain of oliver.sang@intel.com designates 198.175.65.9 as permitted sender) smtp.mailfrom=oliver.sang@intel.com; dmarc=pass (policy=none) header.from=intel.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1732269836; x=1763805836; h=date:from:to:cc:subject:message-id:mime-version; bh=1MGDYiUJwc0kyq7SvZ3U/ENf7JkzLlDxwlJbgafa+nY=; b=APQpYvkl19N8+uZ8i8LCrLfrbiC73xWW9IFXrzy/pLlN8Hd6zFPEPhI3 J2hn092BipijnNVYKQxhX4tAs8s3kSPV0hiL29qEVnLt4eu/kclIIuEw5 4Ww39eEGqwC30vzxFsOLdmTfyuin+/X32F+gwZ72OAjlrxSGR56iBqcjQ dF2koDmdSVjX+JPR6Lz9D5Wm7CPJwJ4y0p7quokve2keQmsZsojlXu4Ja YCtDqjzmFniwY2RwJTzbYFdVLgM53rxal6/nsBM/EJQpl8pbFHXqnXA3t 2kYrOs4/URlxF+1MfViXhr4DfQ9058M6jlwYCLFH43E65mrc+Fi5bwloq g==; X-CSE-ConnectionGUID: g43XyaBxQ4CX837BbAPY8w== X-CSE-MsgGUID: rH9V1uIcSGquNajq/TBlRg== X-IronPort-AV: E=McAfee;i="6700,10204,11263"; a="54926943" X-IronPort-AV: E=Sophos;i="6.12,175,1728975600"; d="scan'208";a="54926943" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by orvoesa101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Nov 2024 02:03:55 -0800 X-CSE-ConnectionGUID: bFnqDiJ9TaShbPfiYG3+tQ== X-CSE-MsgGUID: 9SMy/tu4RUChdJUnVImdVA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,175,1728975600"; d="scan'208";a="121402281" Received: from orsmsx603.amr.corp.intel.com ([10.22.229.16]) by orviesa002.jf.intel.com with ESMTP/TLS/AES256-GCM-SHA384; 22 Nov 2024 02:03:55 -0800 Received: from orsmsx601.amr.corp.intel.com (10.22.229.14) by ORSMSX603.amr.corp.intel.com (10.22.229.16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Fri, 22 Nov 2024 02:03:53 -0800 Received: from ORSEDG602.ED.cps.intel.com (10.7.248.7) by orsmsx601.amr.corp.intel.com (10.22.229.14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39 via Frontend Transport; Fri, 22 Nov 2024 02:03:53 -0800 Received: from NAM04-BN8-obe.outbound.protection.outlook.com (104.47.74.42) by edgegateway.intel.com (134.134.137.103) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Fri, 22 Nov 2024 02:03:53 -0800 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=EY68L3ivXgEAdat4GmMSmdTRAMeVlqW8I2t1hIxNY9BAjwBF7SUGlkcUNeKdagXRYGNvAPwm55UvloNAX020lmNiiXuvWk1TupcPigk3PpkX3ERSHYCErkWPuloq51a+9fJrTjle1ejhdUjqdHYjovJwIBunUmYTh31048J+ugGNkQ1cEKYJ0YY1cBIK072V1fSXy2fUhCVlt/GErviJkqr8FDRloM7As6w5WqIE4kHbCOApNV46KGFuLi0T7bNGOvYDZUMO8NVS8fMpjmN+wCDa0Cqh+ZWDK4TpGB6rqTZ1oDGZZPxSxOfOFEzcYt+8pspwshTdXOu//umbpwfN/Q== 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=3kgyOsb/u6MvTpO4yhsSK48zLtbUlheeL9EcLDKjPd4=; b=SrL3FT0JcAeAAMvYUALU7lrLJUm3zxmsiyVSNrq3GsWI8o9QsmkSYI7stCifrs6a3UMRqQzklfCOCC3fdEoaHT4B7dGCkGugjjnswjCEuCLXANWXL7tmw52Z8g+boVC2PXdixOg4k0RtDdx+UwT01Q0TuwOOrVtFQ7WQbOKJzLZej3I/mEK1t740bwr///OVCMDBMVaCJ5PntJTW5uPy3VF65yA09+SLqk3nGo5luSLKBQ/JMSveg34jE+muCNbfrp/wwr689zsRIOIhX02OsDvdXCj+OJqkxUqQWDAOCHsdFtIbLR6kRzolhzoOKrKlEJ2Vo/noz5dvB4iO+6oTTQ== 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 Received: from LV3PR11MB8603.namprd11.prod.outlook.com (2603:10b6:408:1b6::9) by IA1PR11MB7176.namprd11.prod.outlook.com (2603:10b6:208:418::5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8158.27; Fri, 22 Nov 2024 10:03:46 +0000 Received: from LV3PR11MB8603.namprd11.prod.outlook.com ([fe80::4622:29cf:32b:7e5c]) by LV3PR11MB8603.namprd11.prod.outlook.com ([fe80::4622:29cf:32b:7e5c%5]) with mapi id 15.20.8158.024; Fri, 22 Nov 2024 10:03:46 +0000 Date: Fri, 22 Nov 2024 18:03:37 +0800 From: kernel test robot To: Vlastimil Babka CC: , , , Subject: [vbabka:slub-percpu-sheaves-v1r5] [TESTING, HACK] 3340b9085e: BUG:kernel_NULL_pointer_dereference,address Message-ID: <202411221731.acb4de27-lkp@intel.com> Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-ClientProxiedBy: SG2PR03CA0096.apcprd03.prod.outlook.com (2603:1096:4:7c::24) To LV3PR11MB8603.namprd11.prod.outlook.com (2603:10b6:408:1b6::9) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: LV3PR11MB8603:EE_|IA1PR11MB7176:EE_ X-MS-Office365-Filtering-Correlation-Id: 65c4e4a2-4145-491c-5a65-08dd0adcf3f5 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|366016|376014; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?NcK4dgW/3vbBhZ8ouUR6LI+fT8C4bpClId1f0TD7cPO03KXAjBufC95KypuI?= =?us-ascii?Q?e75KH8pzRMBFn6vbGAt6oIFSXuygZxDSIW8HokRgqFd2deuCbWrB36pezC0G?= =?us-ascii?Q?IUyTS3b13VxTk13eBrWYQR4DuP8jdzuu6JfD9rilcAcrEEsyQThIqGbMvQJZ?= =?us-ascii?Q?C5hIaEsoSlMbfqijDKNdd5dz2aC86+EGqFQ6XqZqTBRlAPwzfK2m+rHWv4LB?= =?us-ascii?Q?1f+Vy2OPLOin3SV/2Y7z03ce8bkWyY5Okzv8e1iAQNSEacVxG8hk5zIitcg7?= =?us-ascii?Q?XFp8AKIdxmI6Fb0/wmvZj1lzVTu69S/uUAgQJuHOXDcyGAXOrKPN34UQT4Ys?= =?us-ascii?Q?efRYnyBTkwW+8yyb/8rFPe5k6aIkJha6YC9B6dUGzH0BpU4SRhb0eLtBlUhG?= =?us-ascii?Q?NBMhE7cNhahpgOxoi8scA58qZzKHxUtKt5vKME1Qp7cU7rDWfV4X+TyYCA4h?= =?us-ascii?Q?AEA3ExvNDyjpiD2aBBEuLJb4UPBJressEr7IExfq6zJ8Z57oU2Cpam+dOGIw?= =?us-ascii?Q?p8OitzK2MacqIqacD0G3+8hhHtbmUc+jSrhSuU92bPNjpPEhXnGP8t5KBySM?= =?us-ascii?Q?Xi11vo7MU3FdkYZCY/JbVCg8tGxLr61/859nmTXCIujtLbRBCE1o0whV37nb?= =?us-ascii?Q?RWtWzJTI5wFrp3cpysE/Tm0wPoLo01mFZzII5rrDX8vO35ppF+Mw5bMPOqRk?= =?us-ascii?Q?Oagtros7uks1F6+tjZ+j/IRtLXNDAkuWXAfpJi0Y3laeBnKqkegtq14kns22?= =?us-ascii?Q?XjTwJsDhivKrYm9DYui57n6kScOnfRLQ9N1WXgnWin0sUBuxI83Ox7wPDHYo?= =?us-ascii?Q?qbQDj9GwglKx8NpHUZwL2T0wNQYfas1Qga6EI3Av31es+Q4rQVr07oEDD4oO?= =?us-ascii?Q?ZjfIFcq6ts/IQIXCFyGyDj6/e/y6b0A1HXBe1T/gAYdqjJnB0nnS51Y2PkGh?= =?us-ascii?Q?slDx5fU1xv3hFTE5bTAznvWESPmDEV1uqD9eGvpiLhAuNO6WqLQ10LyWNyRI?= =?us-ascii?Q?ZAQnqUAyDsv2pc80oMXXqUFfp1xwPng7ja//opxzPdCESEm+gxIsjuL3k8LR?= =?us-ascii?Q?dSlGghXyTvj74dDfc2sKH97FNWlxK2210OcUmH8ZdX0TClFxMsU/sa3O5m9C?= =?us-ascii?Q?MkKyP7K7NSqtV36e2H7yZF/GdHcrvSHq4uqFG5E7quQPCH12xCE3Sl5hehir?= =?us-ascii?Q?wG0k5X2a88SKdAiRV3biU/Yy+CMUnFjo3qcWzSPeO4JzAu1ren/tPr+RUAgu?= =?us-ascii?Q?+9UAfy7VVQkFzLD7NnFssgRUgczQAx224ngNLVNcjA=3D=3D?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:LV3PR11MB8603.namprd11.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(1800799024)(366016)(376014);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?n06vh/KQBmcJXZyQWS0Vr2JmMzQ5M1wx9YnJFGDH7Zw0ojmp5jt5CEGZT0sx?= =?us-ascii?Q?v+InIDaZUmIuygapboKZJ70IoCL8zMSycK2AhQcCryyhGnLsrteA8LTopliR?= =?us-ascii?Q?qzCdjSO64yqJ+oRfbqfMt6eq+9Z3XgaRnuHFRtXmeo3A9m9Uwpux7B9d2CmG?= =?us-ascii?Q?9tfBZ0X0uud0lPL/iBIEjJkh9Qgudg82iSQReynUvadtnghTgfHzKtlJZSc/?= =?us-ascii?Q?KuNJJWlW8W+6eF6yBn+cEbjr+s18PrzmKMAZPFrpEf9xtds+J+mKBERd0WZA?= =?us-ascii?Q?JIcTn1t3DmHYFfckTErJ3ea5F0t0HXZNQILn3xDrdOrDPWI4iSemVJu5Tsqq?= =?us-ascii?Q?tfvE+rjz94VM0MKFH8DuNeRyOQrKTdcuDL6s+SxVjSphsx9H6SDwy6aJdAB5?= =?us-ascii?Q?vRsu13VyXPLXOKyXDOD8ipusWXSYaa43K0cJQ2bwDXZwoB8hUNCSEAdswI0L?= =?us-ascii?Q?9bwwZOdidF1mu9/CN6ePRbX8eTcRJXelGPv441n5CNlZo3MrNlQMmuTueAUU?= =?us-ascii?Q?ft2q9uwhRGf2DvKUzxRfKgwoyWhYsPyRlSc/e9VRypHtxzdkTfgA0xytyCXI?= =?us-ascii?Q?5h7Mf40CcgEtyP43nkdu2/K6jmEpfquSh0jID6sDAkDeCXlzvpKqG52mjAel?= =?us-ascii?Q?tN/ObWJxCj+hoWSs0GDOw4Ytx7109ovLl7T+pNwbls4dvx8zTRN139foZgVr?= =?us-ascii?Q?e/s6t3qKR2yom8Pra/sIbhcPAwYALGn/jqujyY9NTLdqHRUHY9x2sWvQGA9r?= =?us-ascii?Q?bJfAE6UscGVvwQ1r3ymxjteIGpS+qp7YmbiG9ZD5M4QVJTWl+sU+/uIjxodP?= =?us-ascii?Q?h9QSK2qGkqysMbjW57Pm9gEvS7HSNSKgFLzfTo4q7IC2/0SxF1RoNpcd7vIR?= =?us-ascii?Q?gHQuLFawRjqYfKxiFSHmSdaynrow2klT40TxC5B2ujZpxnsTFl6ovmHgwA+4?= =?us-ascii?Q?JtNBgPGismUCIqxrp+z8iMRG6uG3uUC9/9ZJ/XSev4FHt6mMIaxRQBlfZDea?= =?us-ascii?Q?9J3YhhGwD/KR5tocZ14X+qa9dTLh/bdSsb+l66VWNRkmtTbHnuCCIiJAY2FJ?= =?us-ascii?Q?5/4890fJ90MDwqNdnj+BLnfQ8crrxU9h/X8oMoTAaT/QVPvRxLsfBStoDqT5?= =?us-ascii?Q?wg3uxUOOzBOM0LGtyuMrDvLsqVkHwAPImPhjfrIUi1HxL0T8uJgYQjkk6EIf?= =?us-ascii?Q?dWUjd4eGHcVsgE2UGDQjwLnk16mYXLZlz1WlVFcFTdVkg24wNYzGFNUTmW7N?= =?us-ascii?Q?1+wjF2RIy9GW4LJlviVpbQMLAhwOZKLspjCIbMm8CEKQpjEnUsjLvSsS5AqN?= =?us-ascii?Q?EM2lK/QmG6McYbfffmMyRZkNNsvhk8laptMglQf357SVt7tdxruM2Kb3l56J?= =?us-ascii?Q?h1rS0Y2xQMVwIeE/E1FNqM1f3GJIbVwPzRQK01WakD+lXi9p5t6qhDXv7hfR?= =?us-ascii?Q?v4YPJtkD2WOCcr6UJdg6tSYmhXvkpHmQ2MlXspAv2SEi4+hlQU162UUpLhSy?= =?us-ascii?Q?OmAmeYVY9aj4c8lQalT8T/VLyvBEK417DYjratzgWqv/0jY2tLfEMXEtE3iy?= =?us-ascii?Q?BGQMzI7mma4C3qW4cdNjzzkssIHdoTLQOntgz3I0l55U0fj7IvHoSZP35+Nx?= =?us-ascii?Q?pg=3D=3D?= X-MS-Exchange-CrossTenant-Network-Message-Id: 65c4e4a2-4145-491c-5a65-08dd0adcf3f5 X-MS-Exchange-CrossTenant-AuthSource: LV3PR11MB8603.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Nov 2024 10:03:46.0050 (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: 2FEmspPurIRH9I1wI2kNNy2DWmqxQVrgxr78jJ3IjpA7Ie8eoCDNIBcDQ3hDqN6Lb5oPBZxLbsdkaJ3eGPsqpQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA1PR11MB7176 X-OriginatorOrg: intel.com X-Rspam-User: X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: A61A740018 X-Stat-Signature: igrqkumrx9xyk7tnaskszp6wd9afwwut X-HE-Tag: 1732269761-660003 X-HE-Meta: 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 s2i2FVbb 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hello, from commit message, we are not very clear the purpose of this HACK patch. we just make this report FYI what we observed in our tests. if less useful, please just ignore. thanks kernel test robot noticed "BUG:kernel_NULL_pointer_dereference,address" on: commit: 3340b9085e6f2a812039ed0a9ca03e8e26cc01ba ("TESTING, HACK: sheaves for everyone") https://git.kernel.org/cgit/linux/kernel/git/vbabka/linux.git slub-percpu-sheaves-v1r5 in testcase: boot config: i386-randconfig-005-20241113 compiler: gcc-12 test machine: qemu-system-i386 -enable-kvm -cpu SandyBridge -smp 2 -m 4G (please refer to attached dmesg/kmsg for entire log/backtrace) +---------------------------------------------+------------+------------+ | | 0382bfb32e | 3340b9085e | +---------------------------------------------+------------+------------+ | boot_successes | 18 | 0 | | boot_failures | 0 | 18 | | BUG:kernel_NULL_pointer_dereference,address | 0 | 18 | | Oops | 0 | 18 | | EIP:__queue_work | 0 | 18 | | Kernel_panic-not_syncing:Fatal_exception | 0 | 18 | +---------------------------------------------+------------+------------+ 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/202411221731.acb4de27-lkp@intel.com [ 2.886567][ T1] BUG: kernel NULL pointer dereference, address: 000000f0 [ 2.887104][ T1] #PF: supervisor read access in kernel mode [ 2.887541][ T1] #PF: error_code(0x0000) - not-present page [ 2.887977][ T1] *pde = 00000000 [ 2.888270][ T1] Oops: Oops: 0000 [#1] PREEMPT [ 2.888628][ T1] CPU: 0 UID: 0 PID: 1 Comm: swapper Not tainted 6.12.0-rc7-00008-g3340b9085e6f #1 [ 2.889305][ T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 2.890854][ T1] EIP: __queue_work (kernel/workqueue.c:2256 (discriminator 49)) [ 2.891479][ T1] Code: f6 0f 95 c2 31 c9 6a 00 e8 19 49 0f 00 85 f6 58 0f 85 10 02 00 00 31 d2 31 c9 b8 b8 de da c2 6a 00 e8 00 49 0f 00 58 8b 45 f0 80 f0 00 00 00 00 80 01 00 0f 85 0c 04 00 00 b8 a0 de da c2 31 All code ======== 0: f6 0f 95 testb $0x95,(%rdi) 3: c2 31 c9 ret $0xc931 6: 6a 00 push $0x0 8: e8 19 49 0f 00 call 0xf4926 d: 85 f6 test %esi,%esi f: 58 pop %rax 10: 0f 85 10 02 00 00 jne 0x226 16: 31 d2 xor %edx,%edx 18: 31 c9 xor %ecx,%ecx 1a: b8 b8 de da c2 mov $0xc2dadeb8,%eax 1f: 6a 00 push $0x0 21: e8 00 49 0f 00 call 0xf4926 26: 58 pop %rax 27: 8b 45 f0 mov -0x10(%rbp),%eax 2a:* f7 80 f0 00 00 00 00 testl $0x18000,0xf0(%rax) <-- trapping instruction 31: 80 01 00 34: 0f 85 0c 04 00 00 jne 0x446 3a: b8 a0 de da c2 mov $0xc2dadea0,%eax 3f: 31 .byte 0x31 Code starting with the faulting instruction =========================================== 0: f7 80 f0 00 00 00 00 testl $0x18000,0xf0(%rax) 7: 80 01 00 a: 0f 85 0c 04 00 00 jne 0x41c 10: b8 a0 de da c2 mov $0xc2dadea0,%eax 15: 31 .byte 0x31 [ 2.891706][ T1] EAX: 00000000 EBX: c2c42920 ECX: 00000006 EDX: 00000000 [ 2.891706][ T1] ESI: 00000000 EDI: 00000000 EBP: c4119e50 ESP: c4119e2c [ 2.891706][ T1] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 EFLAGS: 00010082 [ 2.891706][ T1] CR0: 80050033 CR2: 000000f0 CR3: 02fb7000 CR4: 00040690 [ 2.891706][ T1] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 2.891706][ T1] DR6: fffe0ff0 DR7: 00000400 [ 2.891706][ T1] Call Trace: [ 2.891706][ T1] ? show_regs (arch/x86/kernel/dumpstack.c:479 arch/x86/kernel/dumpstack.c:465) [ 2.891706][ T1] ? __die (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:434) [ 2.891706][ T1] ? page_fault_oops (arch/x86/mm/fault.c:710) [ 2.891706][ T1] ? kernelmode_fixup_or_oops+0x88/0xa0 [ 2.891706][ T1] ? __bad_area_nosemaphore+0x127/0x1b0 [ 2.891706][ T1] ? bad_area_nosemaphore (arch/x86/mm/fault.c:835) [ 2.891706][ T1] ? do_user_addr_fault (arch/x86/mm/fault.c:1280 (discriminator 1)) [ 2.891706][ T1] ? __this_cpu_preempt_check (lib/smp_processor_id.c:67) [ 2.891706][ T1] ? exc_page_fault (arch/x86/include/asm/irqflags.h:26 arch/x86/include/asm/irqflags.h:87 arch/x86/include/asm/irqflags.h:147 arch/x86/mm/fault.c:1489 arch/x86/mm/fault.c:1539) [ 2.891706][ T1] ? pvclock_clocksource_read_nowd (arch/x86/mm/fault.c:1494) [ 2.891706][ T1] ? handle_exception (arch/x86/entry/entry_32.S:1055) [ 2.891706][ T1] ? pvclock_clocksource_read_nowd (arch/x86/mm/fault.c:1494) [ 2.891706][ T1] ? __queue_work (kernel/workqueue.c:2256 (discriminator 49)) [ 2.891706][ T1] ? pvclock_clocksource_read_nowd (arch/x86/mm/fault.c:1494) [ 2.891706][ T1] ? __queue_work (kernel/workqueue.c:2256 (discriminator 49)) [ 2.891706][ T1] ? clear_pending_if_disabled (kernel/workqueue.c:2356 (discriminator 2)) [ 2.891706][ T1] queue_work_on (kernel/workqueue.c:2394) [ 2.891706][ T1] flush_all_cpus_locked (mm/slub.c:3892) [ 2.891706][ T1] __kmem_cache_shrink (mm/slub.c:7006) [ 2.891706][ T1] kmem_cache_shrink (mm/slab_common.c:566) [ 2.891706][ T1] acpi_os_purge_cache (drivers/acpi/osl.c:1575) [ 2.891706][ T1] acpi_purge_cached_objects (drivers/acpi/acpica/utxface.c:238) [ 2.891706][ T1] acpi_initialize_objects (drivers/acpi/acpica/utxfinit.c:253) [ 2.891706][ T1] acpi_bus_init (drivers/acpi/bus.c:1368) [ 2.891706][ T1] ? kobject_create_and_add (lib/kobject.c:799) [ 2.891706][ T1] acpi_init (drivers/acpi/bus.c:1452) [ 2.891706][ T1] ? acpi_bus_init (drivers/acpi/bus.c:1438) [ 2.891706][ T1] do_one_initcall (init/main.c:1269) [ 2.891706][ T1] ? acpi_bus_init (drivers/acpi/bus.c:1438) [ 2.891706][ T1] ? rcu_is_watching (kernel/rcu/tree.c:739) [ 2.891706][ T1] ? trace_initcall_level (include/trace/events/initcall.h:10 (discriminator 63)) [ 2.891706][ T1] do_initcalls (init/main.c:1330 init/main.c:1347) [ 2.891706][ T1] kernel_init_freeable (init/main.c:1582) [ 2.891706][ T1] ? rest_init (init/main.c:1461) [ 2.891706][ T1] kernel_init (init/main.c:1471) [ 2.891706][ T1] ret_from_fork (arch/x86/kernel/process.c:153) [ 2.891706][ T1] ? rest_init (init/main.c:1461) [ 2.891706][ T1] ret_from_fork_asm (arch/x86/entry/entry_32.S:737) [ 2.891706][ T1] entry_INT80_32 (arch/x86/entry/entry_32.S:945) [ 2.891706][ T1] Modules linked in: [ 2.891706][ T1] CR2: 00000000000000f0 [ 2.891706][ T1] ---[ end trace 0000000000000000 ]--- [ 2.891706][ T1] EIP: __queue_work (kernel/workqueue.c:2256 (discriminator 49)) [ 2.891706][ T1] Code: f6 0f 95 c2 31 c9 6a 00 e8 19 49 0f 00 85 f6 58 0f 85 10 02 00 00 31 d2 31 c9 b8 b8 de da c2 6a 00 e8 00 49 0f 00 58 8b 45 f0 80 f0 00 00 00 00 80 01 00 0f 85 0c 04 00 00 b8 a0 de da c2 31 All code ======== 0: f6 0f 95 testb $0x95,(%rdi) 3: c2 31 c9 ret $0xc931 6: 6a 00 push $0x0 8: e8 19 49 0f 00 call 0xf4926 d: 85 f6 test %esi,%esi f: 58 pop %rax 10: 0f 85 10 02 00 00 jne 0x226 16: 31 d2 xor %edx,%edx 18: 31 c9 xor %ecx,%ecx 1a: b8 b8 de da c2 mov $0xc2dadeb8,%eax 1f: 6a 00 push $0x0 21: e8 00 49 0f 00 call 0xf4926 26: 58 pop %rax 27: 8b 45 f0 mov -0x10(%rbp),%eax 2a:* f7 80 f0 00 00 00 00 testl $0x18000,0xf0(%rax) <-- trapping instruction 31: 80 01 00 34: 0f 85 0c 04 00 00 jne 0x446 3a: b8 a0 de da c2 mov $0xc2dadea0,%eax 3f: 31 .byte 0x31 Code starting with the faulting instruction =========================================== 0: f7 80 f0 00 00 00 00 testl $0x18000,0xf0(%rax) 7: 80 01 00 a: 0f 85 0c 04 00 00 jne 0x41c 10: b8 a0 de da c2 mov $0xc2dadea0,%eax 15: 31 .byte 0x31 The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20241122/202411221731.acb4de27-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki