From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.16]) (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 291CC1D47AD; Wed, 12 Feb 2025 02:51:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=198.175.65.16 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739328710; cv=fail; b=UywShjOclnlTbHUBV4xfK+Di2FpO6WunzUBqXRHcCYwkJ4yR9P4zb4Xk/YGHE7KHg3jKyXSULl4j11vrxw7ne+9OTKrIHRIQRWibQ+EKD6t/UdyThbcfBwp+UC6R1r9f+lDGcnS0/ivqXyP/P6TzhXbj9wdNkFa68BBQBtC8Aqw= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739328710; c=relaxed/simple; bh=OHe6DhHOKDF3vmDl61oTVDxo33fQiS53wy88i7l0vHo=; h=Date:From:To:CC:Subject:Message-ID:Content-Type: Content-Disposition:In-Reply-To:MIME-Version; b=XnqZHzRf0U1Vfnt2QBPCTkLQhT8Immph6gUavYXC8w78qk3B5tNCc8GEv4XrL2NhzqN9rSQcc3fTLKm3fjw9Cz2FVv5E8krwBTY18XSUTmu80Uwf/+rGlBXAuSEGQYgZGiYLQXb5MEa3LS0FO27AOAqPrEqQjBgHOceDAhf/b9Q= 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=jNcpafPy; arc=fail smtp.client-ip=198.175.65.16 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="jNcpafPy" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1739328709; x=1770864709; h=date:from:to:cc:subject:message-id:in-reply-to: mime-version; bh=OHe6DhHOKDF3vmDl61oTVDxo33fQiS53wy88i7l0vHo=; b=jNcpafPyKPKe1T9P32+vN4YmdbwOWwEyNhQgq9m/8Ks6Sn99tq/pj0mg gRbUTlfuHLgWIoWpbs2J2iguUzFoaHmNuWefZp899jt0+/ns5J+C02tQB bCnNVADfHsFgok5UwPbBdB4ilkdaKRdl5KA5s5vwgHIupST5KhkYf6FGq sT5B0NoZWJpCVHVY7PPrzVXAU0XGC0ETuX2S0RtAWUsY3zs2NxCMfEyP1 W8AT5Xn7KzfXfO7a23q1gYCnE29Z+vre6EO09d5NqZHfmZXQXMqQnQj2l SLPEzrjgc0ENOUd23vlOMJ5UXyHP3izn+7vohq9W7rX/IAZZnFeyQWADo Q==; X-CSE-ConnectionGUID: 58kFVDBsQX2+8ymZ3JWyig== X-CSE-MsgGUID: n7Kz0++JSNW1u6VDRaLqPw== X-IronPort-AV: E=McAfee;i="6700,10204,11342"; a="40092947" X-IronPort-AV: E=Sophos;i="6.13,279,1732608000"; d="scan'208";a="40092947" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by orvoesa108.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Feb 2025 18:51:47 -0800 X-CSE-ConnectionGUID: wr1ZyT08TnakuDzZtECCjw== X-CSE-MsgGUID: QbQ4U/uqSdW6wWDM47bZQQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.13,279,1732608000"; d="scan'208";a="117710421" Received: from orsmsx603.amr.corp.intel.com ([10.22.229.16]) by orviesa004.jf.intel.com with ESMTP/TLS/AES256-GCM-SHA384; 11 Feb 2025 18:51:47 -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 15.1.2507.44; Tue, 11 Feb 2025 18:51:46 -0800 Received: from orsedg603.ED.cps.intel.com (10.7.248.4) 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 15.1.2507.44 via Frontend Transport; Tue, 11 Feb 2025 18:51:46 -0800 Received: from NAM10-MW2-obe.outbound.protection.outlook.com (104.47.55.46) by edgegateway.intel.com (134.134.137.100) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.44; Tue, 11 Feb 2025 18:51:43 -0800 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=LGqHRw1rkSE9g1T5luRxqd+SvwP5wCozpNiDfZUDc44T77m06LDKx7XrUv2joZyu6sdoKlfTSU5QK6st+bnliEhwqsjDkSNm4LgimIyFOhbAfPl6xlLzDNH7UrJv8HF0a5N+hcvAHyKzHx3fcttQmd0H2thEjn98vSzoUj8js4ga3QZORiUNn/j1lykP3K7NCDzF2fGcF4QtJ84gtdeO2GrCB39Tc337OvxbCpyWNfre8j2vXwSoN0wUHDfhEFttzPt5AfMxseT8s/XClWymNgVRFtT6IARoUslZ6fbSMV/DnLBMqhljcXUffYhd4+O5MPPGIRSxdtGUh7LmOOi6cw== 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=NujVCjvrn3Ckz49n+JRH1mcS7VoHxaKBzUDmxhLoV9Y=; b=YdvBRDXDAEeeaOnf0IY57dYn+3z1mGqxs6Toy5EIhquQtlIMBS1N+NNWX44/xv33OpzBo1mwFsSLyZDkwE/A6FgKCOS5p9hMNwjJmI4Ypi9XSJVt8Mjd48AnKP8tNy6ZO1C5Pi2uOIL0UNjvCi284QsaEyxq8Afe7STUnr896O7MyzLHxDAu7Bme2AhJj3yw+gdofkl+9Bs90rCtJ6NgyL3Ds8zeS7U/1Z0WkgOKzJ3bT+YjCEOhN9/9rfeTx1VbLSt01Xo4qsoU3ogL/ZKDFjrVmHLLJvTXm2h8F1vCec2NXKBXPkmfFPYVATWyduB3Cy8LyCsjOQkdCtvklZq9og== 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 LV3PR11MB8603.namprd11.prod.outlook.com (2603:10b6:408:1b6::9) by PH7PR11MB8502.namprd11.prod.outlook.com (2603:10b6:510:30c::7) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8445.11; Wed, 12 Feb 2025 02:50:56 +0000 Received: from LV3PR11MB8603.namprd11.prod.outlook.com ([fe80::4622:29cf:32b:7e5c]) by LV3PR11MB8603.namprd11.prod.outlook.com ([fe80::4622:29cf:32b:7e5c%3]) with mapi id 15.20.8422.015; Wed, 12 Feb 2025 02:50:56 +0000 Date: Wed, 12 Feb 2025 10:50:41 +0800 From: kernel test robot To: NeilBrown CC: , , , , , Christian Brauner , Alexander Viro , Jan Kara , "Greg Kroah-Hartman" , "Rafael J. Wysocki" , Danilo Krummrich , Kent Overstreet , Trond Myklebust , "Anna Schumaker" , Namjae Jeon , "Steve French" , Sergey Senozhatsky , Tom Talpey , Paul Moore , Eric Paris , , , , Subject: Re: [PATCH 2/2] VFS: add common error checks to lookup_one_qstr_excl() Message-ID: <202502121009.f7bc8e67-lkp@intel.com> Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20250207034040.3402438-3-neilb@suse.de> X-ClientProxiedBy: KL1P15301CA0063.APCP153.PROD.OUTLOOK.COM (2603:1096:820:3d::21) To LV3PR11MB8603.namprd11.prod.outlook.com (2603:10b6:408:1b6::9) Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: LV3PR11MB8603:EE_|PH7PR11MB8502:EE_ X-MS-Office365-Filtering-Correlation-Id: dbd3c174-ef29-4be4-db00-08dd4b1012cf X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|376014|366016|1800799024|7053199007; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?GSWp05s1Tjo9RbP+uSWohBkZhTZRutKmKzGoP67jzLd24kJJ7Gv3EDXqXtcv?= =?us-ascii?Q?08c6EHscJP445KBRE4ja6L/pO47p4XSAWcPEuTLB0+heUZ02W02McuXROaeR?= =?us-ascii?Q?RjXkOl4UZPTfNVp6dCR3bBrVCtgFJ+A8mqJ+7XcwoRLweGWWFh14/QroRdS1?= =?us-ascii?Q?6K86/7GHiNHzccDjbLebRd4VWnPToJ1xtXOHKq8Qffdgvut6FJJVA03k5xYN?= =?us-ascii?Q?e8R48/Y3zAKh7ivbk4G39L3dK1e/GLC5GvgyaoFQai5tUmZxS0ZbCk62kkHE?= =?us-ascii?Q?nJ+jBrYFfbVzFRILvERioZEvx0x73IsL5w3DpFBjA01L239rkEePI5NJaUkj?= =?us-ascii?Q?wgKLXBvn42y3tOcaRyKTvoVDpr+Jw7wBHi15UAPGXVa3qB/ZFWCbGsL7iOTA?= =?us-ascii?Q?lfIiYUoZOEBK9vcR10v905tVuLKTZRgGh04V7bB91VYvrOXG0iuRucMWZDn4?= =?us-ascii?Q?lzJID8420jmt2G/qV8FdnkdH0DR81eQeVgw99Ch07sDEJzJeOOFV6sn1u1lj?= =?us-ascii?Q?OiyyzU1sRYXfvEH5Ngehqhn/D817q9xDvBy2W6tYV7s+qZOxCEwbmEC4bmdl?= =?us-ascii?Q?Vyx+uXyIRtfuUJPvTB7aP4yf65xNMr5z3ySrHFIFwt9pIb+WxCLjMgb6YQCy?= =?us-ascii?Q?QRXvI7tCnPZA042Veh8+/hZttvTeZmqYBUOZhvdY3Q//bGpLzZ9DIanS05Jb?= =?us-ascii?Q?fwvNnllq0+oTcTItCypmtn6qvXBwMpO5bvItIQMLffmmROcWkfMZDIOZNVWj?= =?us-ascii?Q?gaW/ac2YgYcHAqIfrRwxljAY5nPiwHDttcXqWWz8TQu575g5OEtmSeI7YA2H?= =?us-ascii?Q?UNJT3BDc3maeyJ0S/Jim+PCh+AiBv7bg1rJj4HwxcxwjJ2hf2fpJDAM6lKdX?= =?us-ascii?Q?ke+jY5dEkpi0JrqNPqPKD0VTSj2Mt3j2i5xpPUjS3gA3x5c1KKR4zt6O7ubs?= =?us-ascii?Q?o3qp8WNu1qW87yKqRp5za0dKZjQUCo0R+0loJBruXO3f9hJ66diroCCU7x1j?= =?us-ascii?Q?BGXZbLh1/NKchW7C/Be2ipwVOkpg41ysRalBVFpPeghTYuStz3+KMJeGiaQ+?= =?us-ascii?Q?ZGGLQtmGa+c0yd+zeBxUOSF1h3r/LgHDe9W8dEvLRxU/lbx7jK+PnO9am5dx?= =?us-ascii?Q?XmihEQqsYUxI4WBq0k/ouWbwj1tcHap+8q/Xr44CGeq0WXlZCwmub/N3kqN5?= =?us-ascii?Q?rQxQessgbSPXEu/RXSqd14k5D66LgFiVOPAu+91IYxxwoufgVy1DGNZl1vo5?= =?us-ascii?Q?5QlV0sM8DBSTgqaTEPBmSCxfBRknqQePThrwZ3sflWMF1qPZ2Xzqd+0h49bd?= =?us-ascii?Q?qNelKtb8TqG2zGYhuf9rhLiW9OKqftXjjvVQb7tBrPG7RQ=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)(7416014)(376014)(366016)(1800799024)(7053199007);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?VfXZ0ruhp3P4GM8L9NgfdMiv/rJbHvgnyyFyuR2QHI5iJFDjDmXX8ZUeK4vR?= =?us-ascii?Q?Ih4uANZKzClGHD4GZ6tpJ8GYTjEA3NlRSwjVI3MSIlPUu4iE6l2zG9+LX5k9?= =?us-ascii?Q?rDv4JFg8bVV22wN7+wQGTKucAW+Mu8c+cL18CosliR9pixFb8hELcRt66two?= =?us-ascii?Q?K8ciNOMJEtjxZtsCfMIREU9iP4jUqPecFFhnbImax44Zk1MYFNET2BLqCF5u?= =?us-ascii?Q?TDLy0xJTJb/Dz3MGjGBGMW4mNBPqU/NmVEJWtDNkpkUbe57BjJhJ7UaTtFOE?= =?us-ascii?Q?uk0mYVv9dtBkskPz429e7jqId08Hban4kwEIJpLeyLy6ApQuTsu++naWzMz0?= =?us-ascii?Q?hBUXdPvpDdBEZHtHeJ8w/ROZfZupprbV/U1DCeI1gfexM6OA+5RUyPSU9GuN?= =?us-ascii?Q?FgzlhB7qX3lbgIwGXSgmUFtXgb1pyfE8DKR6j+O6r36Lo4QiHOGfmitqhLIZ?= =?us-ascii?Q?rijJ79aK0+1jzqEBlMwjx1i4MRsIOjEaU5sI+ewvGimm5fzXPgwpgS8OkAFT?= =?us-ascii?Q?cXYEoIVsaKBUoxLqRXQNPmx0RUClUMpvUzlCMRlezxhxnN+iHzs9tLUP1B++?= =?us-ascii?Q?eKRydPMtgXhBOLsN+rWvTvOgOpH7ZA6QkeOD8fNy90v2+sywkTeWqPmTc6q6?= =?us-ascii?Q?Hg9BJmClzu6k6+3Vi4xnQRHhwOP6EJuq4T5HrcROTXywaSRyE4R4qZdoHHwV?= =?us-ascii?Q?ShWd3jHId7nBfg9gqyVhVeDpkt1UcVqXzsyl+CHWRm4pMBk2xkPlwiFNNzt7?= =?us-ascii?Q?rJa5/ob/3gqAmjt5FsPWINqyhC3mlZCxRSgV7lvCjnDwJaDayLTa32gmTHYF?= =?us-ascii?Q?pjhec8O7uHwj586xIHTeLeK+QWfiRHMBxesTH48Ap3ibB2G4gdz5mHz1EW+W?= =?us-ascii?Q?Aw/41veJwB4dDv6ad/uYT0Z9o/cvDPOebqyxvuGTUJ8Q4FqsmUk/077bCZbC?= =?us-ascii?Q?ePj5YoghDmnf5T1GWn8e6ak7TV2iENWsV1WV69A8WpiyB+06iTwfepINXrAa?= =?us-ascii?Q?ONQ3j8v3VjmnLtHa4fiFTAV1TCeLWcVJn8i2+gqZ3T7yHRbH6tlZw9+qT/Qw?= =?us-ascii?Q?DxwduOXFk+GLCCqlhpmbxXqqsI9fq72szVp1rZSb9YjKuCm4IqSo2luf387F?= =?us-ascii?Q?w9RGAMZvsRIBxnS1Ab1XrqEVKcy05uOQstUUxi1vHrC7fFWSWn4j9m6xMK31?= =?us-ascii?Q?IIdMwgZhk4AgzW84gw5GbdtertzwrNrYIxP9puFStTxjIqkeUDWi8wgfROB8?= =?us-ascii?Q?2XZSnDMJ58uF70PNoT+xEYytN4XT6JdROQG6BBqD3ADXXPG3j/JU3G2v4/eC?= =?us-ascii?Q?N1QJbvBLbQ/5fpQGUc5bJNl6FHR+v2wXR95IpsMFKkiYrI54VdrjKy8Mta2k?= =?us-ascii?Q?k01txsf/4xjirU2Tai/WP0/l3Zr6td6JGSVoe5k8lbl1XkM87sOYzjHDqX9M?= =?us-ascii?Q?tAXFyahJZJ9BaE3Amgm3uomSJKqJZkPYDinAX+H6XbK1kTaHbL9Ha0wgnLuK?= =?us-ascii?Q?YmJh5JERbXDE9KHHQmMP3y49VHxKtJeNt2jBehcsyxg3kBVtJp3MnXUrXnm2?= =?us-ascii?Q?aUw4BOaWbS38/oYAhniazhGsBEOYqZCdVWp4mVtbd165VayHunVGlVRkHT4N?= =?us-ascii?Q?MA=3D=3D?= X-MS-Exchange-CrossTenant-Network-Message-Id: dbd3c174-ef29-4be4-db00-08dd4b1012cf X-MS-Exchange-CrossTenant-AuthSource: LV3PR11MB8603.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Feb 2025 02:50:56.4608 (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: Ebq7d849Z/fVNKcZ+KG4T9w3FVrRa0lEYBoYWvZPKuNMNvuhQlM/EtCrTTz6whv1bu1yDLAJA4Hy16z0iU5xpg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR11MB8502 X-OriginatorOrg: intel.com Hello, kernel test robot noticed "BUG:unable_to_handle_page_fault_for_address" on: commit: 9a292bc4cbb25ca84f90dbacdf3064a9d6e7804f ("[PATCH 2/2] VFS: add common error checks to lookup_one_qstr_excl()") url: https://github.com/intel-lab-lkp/linux/commits/NeilBrown/VFS-change-kern_path_locked-and-user_path_locked_at-to-never-return-negative-dentry/20250207-185417 base: https://git.kernel.org/cgit/linux/kernel/git/vfs/vfs.git vfs.all patch link: https://lore.kernel.org/all/20250207034040.3402438-3-neilb@suse.de/ patch subject: [PATCH 2/2] VFS: add common error checks to lookup_one_qstr_excl() in testcase: trinity version: with following parameters: runtime: 300s group: group-01 nr_groups: 5 config: i386-randconfig-053-20250208 compiler: clang-19 test machine: qemu-system-i386 -enable-kvm -cpu SandyBridge -smp 2 -m 4G (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/202502121009.f7bc8e67-lkp@intel.com [ 163.118842][ T4188] BUG: unable to handle page fault for address: fffffffe [ 163.119485][ T4188] #PF: supervisor read access in kernel mode [ 163.120015][ T4188] #PF: error_code(0x0000) - not-present page [ 163.120523][ T4188] *pde = 026d3067 *pte = 00000000 [ 163.120971][ T4188] Oops: Oops: 0000 [#1] [ 163.121339][ T4188] CPU: 0 UID: 65534 PID: 4188 Comm: trinity-c3 Tainted: G S 6.14.0-rc1-00084-g9a292bc4cbb2 #1 [ 163.122321][ T4188] Tainted: [S]=CPU_OUT_OF_SPEC [ 163.122717][ T4188] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 163.123520][ T4188] EIP: lookup_one_qstr_excl (include/linux/dcache.h:416 include/linux/dcache.h:421 include/linux/dcache.h:467 fs/namei.c:1696) [ 163.123973][ T4188] Code: 5e 89 d8 89 fa e8 62 ed 00 00 85 c0 74 58 8b 7e 18 89 c2 89 f0 89 d6 8b 4d f0 ff 17 85 c0 75 4d 89 f0 8b 75 f0 b9 00 00 38 00 <23> 08 89 f2 81 e2 00 00 02 00 09 ca 74 13 f7 c6 00 00 04 00 74 17 All code ======== 0: 5e pop %rsi 1: 89 d8 mov %ebx,%eax 3: 89 fa mov %edi,%edx 5: e8 62 ed 00 00 call 0xed6c a: 85 c0 test %eax,%eax c: 74 58 je 0x66 e: 8b 7e 18 mov 0x18(%rsi),%edi 11: 89 c2 mov %eax,%edx 13: 89 f0 mov %esi,%eax 15: 89 d6 mov %edx,%esi 17: 8b 4d f0 mov -0x10(%rbp),%ecx 1a: ff 17 call *(%rdi) 1c: 85 c0 test %eax,%eax 1e: 75 4d jne 0x6d 20: 89 f0 mov %esi,%eax 22: 8b 75 f0 mov -0x10(%rbp),%esi 25: b9 00 00 38 00 mov $0x380000,%ecx 2a:* 23 08 and (%rax),%ecx <-- trapping instruction 2c: 89 f2 mov %esi,%edx 2e: 81 e2 00 00 02 00 and $0x20000,%edx 34: 09 ca or %ecx,%edx 36: 74 13 je 0x4b 38: f7 c6 00 00 04 00 test $0x40000,%esi 3e: 74 17 je 0x57 Code starting with the faulting instruction =========================================== 0: 23 08 and (%rax),%ecx 2: 89 f2 mov %esi,%edx 4: 81 e2 00 00 02 00 and $0x20000,%edx a: 09 ca or %ecx,%edx c: 74 13 je 0x21 e: f7 c6 00 00 04 00 test $0x40000,%esi 14: 74 17 je 0x2d [ 163.125537][ T4188] EAX: fffffffe EBX: c3e7e540 ECX: 00380000 EDX: 273874b2 [ 163.126145][ T4188] ESI: 00060000 EDI: fffffffe EBP: ebef9ef4 ESP: ebef9edc [ 163.126716][ T4188] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068 EFLAGS: 00010246 [ 163.127324][ T4188] CR0: 80050033 CR2: fffffffe CR3: 2b2df000 CR4: 00040690 [ 163.127872][ T4188] Call Trace: [ 163.128178][ T4188] ? __die_body (arch/x86/kernel/dumpstack.c:478 arch/x86/kernel/dumpstack.c:420) [ 163.128552][ T4188] ? __die (arch/x86/kernel/dumpstack.c:434) [ 163.128898][ T4188] ? page_fault_oops (arch/x86/mm/fault.c:710) [ 163.129329][ T4188] ? lock_acquire (kernel/locking/lockdep.c:5851) [ 163.129723][ T4188] ? kernelmode_fixup_or_oops (arch/x86/mm/fault.c:737) [ 163.130222][ T4188] ? __bad_area_nosemaphore (arch/x86/mm/fault.c:784) [ 163.130687][ T4188] ? bad_area_nosemaphore (arch/x86/mm/fault.c:833) [ 163.131129][ T4188] ? do_kern_addr_fault (arch/x86/mm/fault.c:1197) [ 163.131569][ T4188] ? exc_page_fault (arch/x86/mm/fault.c:1479) [ 163.132004][ T4188] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:? kernel/locking/lockdep.c:4408) [ 163.132482][ T4188] ? pvclock_clocksource_read_nowd (arch/x86/mm/fault.c:1493) [ 163.132999][ T4188] ? handle_exception (arch/x86/entry/entry_32.S:1048) [ 163.133429][ T4188] ? pvclock_clocksource_read_nowd (arch/x86/mm/fault.c:1493) [ 163.133946][ T4188] ? lookup_one_qstr_excl (include/linux/dcache.h:416 include/linux/dcache.h:421 include/linux/dcache.h:467 fs/namei.c:1696) [ 163.134390][ T4188] ? pvclock_clocksource_read_nowd (arch/x86/mm/fault.c:1493) [ 163.134919][ T4188] ? lookup_one_qstr_excl (include/linux/dcache.h:416 include/linux/dcache.h:421 include/linux/dcache.h:467 fs/namei.c:1696) [ 163.135354][ T4188] filename_create (include/linux/err.h:67 fs/namei.c:4091) [ 163.135763][ T4188] do_symlinkat (fs/namei.c:4676) [ 163.136166][ T4188] __ia32_sys_symlinkat (fs/namei.c:4696) [ 163.136593][ T4188] ia32_sys_call (arch/x86/entry/syscall_32.c:44) [ 163.136967][ T4188] __do_fast_syscall_32 (arch/x86/entry/common.c:?) [ 163.137377][ T4188] do_fast_syscall_32 (arch/x86/entry/common.c:411) [ 163.137774][ T4188] do_SYSENTER_32 (arch/x86/entry/common.c:449) [ 163.138146][ T4188] entry_SYSENTER_32 (arch/x86/entry/entry_32.S:836) [ 163.138542][ T4188] EIP: 0xb7f61539 [ 163.138845][ T4188] Code: 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 0f 1f 00 58 b8 77 00 00 00 cd 80 90 0f 1f All code ======== 0: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 4: 10 07 adc %al,(%rdi) 6: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi a: 10 08 adc %cl,(%rax) c: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi ... 20: 00 51 52 add %dl,0x52(%rcx) 23: 55 push %rbp 24:* 89 e5 mov %esp,%ebp <-- trapping instruction 26: 0f 34 sysenter 28: cd 80 int $0x80 2a: 5d pop %rbp 2b: 5a pop %rdx 2c: 59 pop %rcx 2d: c3 ret 2e: 90 nop 2f: 90 nop 30: 90 nop 31: 90 nop 32: 0f 1f 00 nopl (%rax) 35: 58 pop %rax 36: b8 77 00 00 00 mov $0x77,%eax 3b: cd 80 int $0x80 3d: 90 nop 3e: 0f .byte 0xf 3f: 1f (bad) Code starting with the faulting instruction =========================================== 0: 5d pop %rbp 1: 5a pop %rdx 2: 59 pop %rcx 3: c3 ret 4: 90 nop 5: 90 nop 6: 90 nop 7: 90 nop 8: 0f 1f 00 nopl (%rax) b: 58 pop %rax c: b8 77 00 00 00 mov $0x77,%eax 11: cd 80 int $0x80 13: 90 nop 14: 0f .byte 0xf 15: 1f (bad) The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20250212/202502121009.f7bc8e67-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki