From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.16]) (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 80B4C2C1595; Mon, 20 Oct 2025 08:36:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=192.198.163.16 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760949407; cv=fail; b=VYb4a00AGcAdPjknTxS1dY8A/SElp3rhzc8oRg7WgOMansmV/Ad9CX8qLtf6IB3x868POPn/RmwiMVnFP37PN32dF0WgyNaVwGZHTSvndBMEAdxqsbhyy8PSS4KI+uuDz6tKMQmkKEzUmt4AMsmBn8PxYw3TMhBr5nFbVq468YQ= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760949407; c=relaxed/simple; bh=MV/LBnfTj0kC2fP55u0yIZCHZetX0+SrTViLUHWbdzM=; h=Date:From:To:CC:Subject:Message-ID:Content-Type: Content-Disposition:In-Reply-To:MIME-Version; b=eGW3p8ndwqhcR85N1gXr+Ud2Mq/gM4jJxK68ZwHd6aTjkhPwrcyG2s+omhQazeThGxsxAGz7MBjKyPc5iDhB3kF5R2fxffPObg7VYjFTMf6C3CjZtHAbHNyTwDf5AADb4hDLh3IZq7ClekmN0MNKu++SxRWZDooUEVzj88E+iJU= 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=ImI/Z1vZ; arc=fail smtp.client-ip=192.198.163.16 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="ImI/Z1vZ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1760949405; x=1792485405; h=date:from:to:cc:subject:message-id:in-reply-to: mime-version; bh=MV/LBnfTj0kC2fP55u0yIZCHZetX0+SrTViLUHWbdzM=; b=ImI/Z1vZrD9NE4TuWJXqqZXKCqzDn33AqEpcixeXQic8UxEur8w1IrN0 NEYHu1MnAnDroWDeF7XTq2Oco3NhXQ7+GK6J/W8Vr3jTj/uNSGGZyTp92 tLhlFzF9rL5nCJDXgjLBZ3YDSie9zCxbgE6ND3lB618qYWG+2WC20/OG5 zuI2lc+4Shxk6vhNCCxKCNNM+Nq8d/UkwMIzuC37+7hjaMUllr2EsneNf kQwm/suKzehJnI2QE1vshETThzxqR43qAY0lAJeHc2TiIOQyvZhWr470P rGpSLfUosazDqLeDneKSNdlqqbaDtj6Eg5ttiJe828MO8tsMCvfxakSUn w==; X-CSE-ConnectionGUID: wIJfHBjWS8q94Df56l55kA== X-CSE-MsgGUID: dBrra38XSJKVN8FDzR6ylQ== X-IronPort-AV: E=McAfee;i="6800,10657,11587"; a="50631625" X-IronPort-AV: E=Sophos;i="6.19,242,1754982000"; d="scan'208";a="50631625" Received: from fmviesa007.fm.intel.com ([10.60.135.147]) by fmvoesa110.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Oct 2025 01:36:45 -0700 X-CSE-ConnectionGUID: U1qL9ifARIenN/XvZdbTIw== X-CSE-MsgGUID: b3xWaFFSSJSv79oXVk3bJg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.19,242,1754982000"; d="scan'208";a="182978759" Received: from fmsmsx903.amr.corp.intel.com ([10.18.126.92]) by fmviesa007.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Oct 2025 01:36:45 -0700 Received: from FMSMSX901.amr.corp.intel.com (10.18.126.90) by fmsmsx903.amr.corp.intel.com (10.18.126.92) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.27; Mon, 20 Oct 2025 01:36:44 -0700 Received: from fmsedg903.ED.cps.intel.com (10.1.192.145) by FMSMSX901.amr.corp.intel.com (10.18.126.90) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.27 via Frontend Transport; Mon, 20 Oct 2025 01:36:44 -0700 Received: from SA9PR02CU001.outbound.protection.outlook.com (40.93.196.0) by edgegateway.intel.com (192.55.55.83) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.27; Mon, 20 Oct 2025 01:36:44 -0700 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=iv4073F/0Bp2qW9Zc9O8QygSAJ7YcCcGyrQLUA9eaVvcTNs3Phqatb6+Q2lm+C+Wj4JvLY6jPanDkb9e1UcJJ8prukXLTJiMoEyf62rHKvkAu1ofa9rUbW3KUeoxj/fOCzJa89dj52ZJ2abjTmf7Z/s/a2TKIk5nCQtdMzHVMcGczSs3oI2WPDk4qgLFCLBGQe3UnD3ZrSAv+AIfxJmjw9MWVbpSEDKdosh9ufjrd/nDJZOoA2ZcdfwNhsLkF0wqnhYtgxKFmLiL1W3SCWidp6SxgSERn+32ay2MFTM5GbYN53nzu2tABnx8MCaFtfXMy8Gjn6GTpSS+s9Z12PDw+w== 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=IXh8ban+v4mkN67BTSB5OQKd/4jZrWcSb4ei5XA4oJ4=; b=Ovld633lgU6cchVlT1H9Id1UcYplGlrVmLE0Q5Mi31z09HNLlCBqwC8oPoZIkSncDT4kCQVkR53zursxjqUOy0fbeGozy6KXuEM0lY29YBQDB5YJlJvFrq+tseqGY9rFq9SNZDfSq7u3YUmOdFblMTmKPO/dcKKAhV4HLjBwRD5Ohr3zWpWwXyZoOjOOcK36dO8D8zx9FlKAiVBCTcom5ODJtHUIrn2lgiVyimXO2KRW0BNzRpDDXYA8+hXqqIzxvszgIA0iN13S7HNNIzLbI01jAHzNl+dkl9fiI3tHqtUtRzSFrgJU5GeDGJ4jPemtfF8z/FNWiYyVX1edOec/jw== 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 SA3PR11MB8119.namprd11.prod.outlook.com (2603:10b6:806:2f2::7) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9228.17; Mon, 20 Oct 2025 08:36:41 +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 15.20.9228.015; Mon, 20 Oct 2025 08:36:41 +0000 Date: Mon, 20 Oct 2025 16:36:31 +0800 From: kernel test robot To: NeilBrown CC: , , , , , Alexander Viro , Christian Brauner , Amir Goldstein , Jeff Layton , Jan Kara , Subject: Re: [PATCH v2 06/14] VFS: introduce start_creating_noperm() and start_removing_noperm() Message-ID: <202510201610.40b1a654-lkp@intel.com> Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20251015014756.2073439-7-neilb@ownmail.net> X-ClientProxiedBy: KUZPR02CA0005.apcprd02.prod.outlook.com (2603:1096:d10:33::17) 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_|SA3PR11MB8119:EE_ X-MS-Office365-Filtering-Correlation-Id: c9585fe0-c8a1-4a41-b589-08de0fb3cb38 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|1800799024|366016|7053199007; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?+kM2jezQWFGiJcEHv8uVax6P9BTaLQzN/7j8Nqsd4VhPWuFM79ObUcT9nvBS?= =?us-ascii?Q?eT8fH4TL0qeTd2FJAZJumlR4/RGIpzDWc0EXdj0yJjU+gCswUhXGHoac9gXt?= =?us-ascii?Q?x386yzPVHv6EagZ0ngjYWrVYLm/IuCqe3WFxgQogiVJ4w832f6jhCBwGuKmX?= =?us-ascii?Q?/WyLxRau+uL7e67wdTTZvmSCVHMpKaioTa3RV+18jp/hENAApiBR+LvefxcA?= =?us-ascii?Q?2H+RoQytwr51oDypiCwrj5APEKwqN3KZiITG/SohRhKDryvk9Dp1POfPNQEQ?= =?us-ascii?Q?vQlXpMKKDA7bg/6T3bZI055fVamnX3gcG7I1kAMVvs2K5meFbXRs3aLXqMM6?= =?us-ascii?Q?a0q7o7nD1GjD55B62sT7r3aPi9SNMz3f05vbboIctuj2psH7aYKQ3Pjs8MOV?= =?us-ascii?Q?xc6m+modIklSmhoA+PiV7/TP8yulyF2vReIQQK0yB8si16j5oz9LNF22M/Mf?= =?us-ascii?Q?dN89L2dQAdVvs/01uQPNAI/xcYwHB/LlhMupNbsrdY94ZqF75HngvYM0LsfW?= =?us-ascii?Q?4jR/R8iKh3LPhQ4CWOfQ7634hOLKMuiygXj1izT/HkD70ASMmv0+CBVpKN2H?= =?us-ascii?Q?zmyf7egMY+w49uKEHcYXQga1Ix936YmXWMEm7ML7EemAAqGhUiPEgEpjrpp2?= =?us-ascii?Q?tHoZawNM1OlBY4ozcszX3ABVKiTagMXmRsxETIwAOSj6hAxhsBZU3iOI/DxH?= =?us-ascii?Q?d3UqyF0mv5W9LdeIyghehFhM8UB1spvSoILgvnnNaAX+NBK4OS5J/B+tdGLt?= =?us-ascii?Q?nzEi2z256ByKQD8ApWog+g9a/GOBzuAX4J8ULt2OHzJYcwatb/MO/D2PvKrq?= =?us-ascii?Q?fYJoYsUQW1A8bJ7RwWsOYvJWzVeyT0WVD4Old33vB44HIu8Nz95iFRYP203Y?= =?us-ascii?Q?f1Cc9MQwv6PhO4WIguY1Pv8a071zToL7mq8JkCLZZGe1Aq098MpXHcOb8jYY?= =?us-ascii?Q?tBoWVaU7/X3eYIZQGERxLHtXh5icx0Am+2NUIuN5udTiiiUJsLgzAcgFuFJX?= =?us-ascii?Q?ZU00MGhCZdVJS2CXCPd+2UOXULhwknxxi8fisqEuHDp5Jd6af3w+KHnF7F4i?= =?us-ascii?Q?RYE3RzE8ndyqgl+FSjWaJgOdnFkazV08bQnC0SomenJcAm7NE5WiRG14bW4e?= =?us-ascii?Q?vb7bLQ+cBp14BZKE56XgHNAWTYr7HzzlwUjXdnGJw1dfYTenDSXZNi5Qoyx3?= =?us-ascii?Q?LZnLH+bWdzwXglqHzlzfu0/hRM0SK2cm9f8kaxaOVYad59959wrPQFbgNJZT?= =?us-ascii?Q?kZ/9d8117ZW08UbdPY3m3gniaC7bWRmRUPe/Z9F/Vi5ruM9U6p0qWrsfB23a?= =?us-ascii?Q?MJGlWGASXekV+aKyEv5Eemh4NKmifkNMDaIwD3bV+/joPBDD7VOUOxQR1eMV?= =?us-ascii?Q?/bJG4NI8ay0ly52xXc8YU2JZytm/aGIAo2Q8Jp2VuCqIjleK9HUgCN06KYcA?= =?us-ascii?Q?CeNMjQBx7+myDRDuQWFd+Y41anl7G5pP+co9n2vlOpF3tA2IQvqzZA=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)(376014)(7416014)(1800799024)(366016)(7053199007);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?9mqck7LUv1iT9Fbn2POk36sVvxyrgo1hS9vc+2m3x9nj/UFSSymUG2ZAg4B4?= =?us-ascii?Q?ZSNugW92BMDymVOnohahGXECYwg/MxxVac0IE5eFmyoeuvGnqwNAW/NZnj/q?= =?us-ascii?Q?ZXGlc8uMsZVQBvoRhvtPNJDIYinmqvwKqQObzxanhqhvRLNTtQi7wBEvqfV1?= =?us-ascii?Q?PYG/0+aiC57bZrZvCxg1DfOSTO0Zk63v2bltVbat9pYkzgz9sI8OS95M9e2o?= =?us-ascii?Q?6ctYGD2x0PAddA9cfAwwNIdtwuETV07vWYd0tyMeFfbfftE9Ezeo0m0u0eHd?= =?us-ascii?Q?G/sPrvibaKwlvd93BH8AAUm3vzNxB2B7qizNpOZfPLGHCpj/Wn6+LzRdsuuD?= =?us-ascii?Q?Y4/A3GMJiVkqaw4ddd97MK59qbVE8TMzOgdfDjIzu/elmU6DTwUTcKdd0M2B?= =?us-ascii?Q?BwRzK9Bnm3p+KLRaZyJO/3jiJMEBLB3vofaOSSasILRqqgxNR1bFxeUb+Cmm?= =?us-ascii?Q?QC+lktU2ZZEhjhVa2l20/s2R/6k82nzpgTq27k9tZ3WLIk4/r7gFOq+GpG4h?= =?us-ascii?Q?MlBrC4QkmPVSQ0WN2BgPXwfoSFC//oSmFcM7PACYdtqgAtNkX7R8D4wrFSo5?= =?us-ascii?Q?nXFMblrwjqY5fnwIKZKNYumscUvho9zGHWYty+VVlCAW0xj0jUV/C9GvPshz?= =?us-ascii?Q?jq2d4MQlqvb1IhwTXz9obpmS29fOiXoJvuOFYqiHNeaQ/wBOJoYl4RBlEB6Y?= =?us-ascii?Q?ux5eLP3Znw4pCcAUTQoA8ulHr8DB7r23U8qpeK3nV59eluCfQ5NOVVUhH82S?= =?us-ascii?Q?Knvm70rc9gXop6R7x9Y5NIKVNC7COoIJce1uvBOoA9moZNQ5Vljdt8sDRJmN?= =?us-ascii?Q?fpCqdKaEKkvP0I9blFE6jt3Qai4yQSRw3QY4owngF8UAS2HZ4NxWyJnNJYgS?= =?us-ascii?Q?pgrFCOcN9umW1mPJ1W2p9e4FMO9mU0zZVgXW76BW5qbploMwXCNm97/hxEau?= =?us-ascii?Q?TZ+3l66QEfa30in9xUTZf5jSsp8bES6PTdu+SY9pRL7LM8X0u/K78d7CFMV2?= =?us-ascii?Q?jJXXCvjB9XFf42HqHC9vq6pdqn26r5mhSBoyh8jHRz7/67tGZ8+bvkgNGPTB?= =?us-ascii?Q?6fBG3P/cKCKwS6jJNBF+jGjgzsPuSON+Mv8xtc3qenyBcwwTrxohDtN0QNd1?= =?us-ascii?Q?0Ibca0Ga4K6Wsh7M/7+eRgghuU79v8bLdE6ht3yd3JLYQBdAR+N179ZPUOwp?= =?us-ascii?Q?ck8HcffvO2Z3TOqlI1xA1HnXaBc5iR/mc0EKdb1U5+ee+mPR0hp0s1JWKD+u?= =?us-ascii?Q?lahLTH9sCZasjEzUPNgLTnCDO1uWy1nk0yn4YbF23XmdatZ7xh3yIsao5h92?= =?us-ascii?Q?zOyFLdV6NmPFQRNiLGudWVSTpb8jtFGWOjVzDhMV0QPAG4sbJGhSZw2zmsgU?= =?us-ascii?Q?N9mEw0xGZmiDVeGewuAFaS4p6swaYbLzdG7teLkqdZ6Xgzx+P0YGVJBQyEbs?= =?us-ascii?Q?p2GLTe7HOZQD7zLNCmJIH1jXrtzFlQXk558z5LatsMyifbI6n9m4Gg6H5UaR?= =?us-ascii?Q?//vKdF1eM73FY58h2Hx/x7kBLTitMBtPMjh1yaEiEFecn36e9eE3HpVVRc4R?= =?us-ascii?Q?IpsoTSfw0WNk7nAk+vjfJ1xp6I9nxwTYqR7aSvWgXSbVt9A+w4wNpkDAfksP?= =?us-ascii?Q?vQ=3D=3D?= X-MS-Exchange-CrossTenant-Network-Message-Id: c9585fe0-c8a1-4a41-b589-08de0fb3cb38 X-MS-Exchange-CrossTenant-AuthSource: LV3PR11MB8603.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 20 Oct 2025 08:36:41.7705 (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: 3UjQ/2b/fWW676a0aw/3OIND+vfcISIe0r39+6m5zZtx59wJzDM6rZ9ef1QfIWQoM2pztqXaAgOyd9YaGV3Y6w== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA3PR11MB8119 X-OriginatorOrg: intel.com Hello, kernel test robot noticed "kernel_BUG_at_fs/open.c" on: commit: dc62b71efff8093d50a9e1f7321cabcb76ff8447 ("[PATCH v2 06/14] VFS: introduce start_creating_noperm() and start_removing_noperm()") url: https://github.com/intel-lab-lkp/linux/commits/NeilBrown/debugfs-rename-end_creating-to-debugfs_end_creating/20251015-095112 base: https://git.kernel.org/cgit/linux/kernel/git/driver-core/driver-core.git 3a8660878839faadb4f1a6dd72c3179c1df56787 patch link: https://lore.kernel.org/all/20251015014756.2073439-7-neilb@ownmail.net/ patch subject: [PATCH v2 06/14] VFS: introduce start_creating_noperm() and start_removing_noperm() in testcase: trinity version: with following parameters: runtime: 300s group: group-03 nr_groups: 5 config: x86_64-randconfig-074-20251018 compiler: clang-20 test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G (please refer to attached dmesg/kmsg for entire log/backtrace) +------------------------------------------+------------+------------+ | | 04e655aedc | dc62b71eff | +------------------------------------------+------------+------------+ | boot_successes | 9 | 0 | | boot_failures | 0 | 9 | | kernel_BUG_at_fs/open.c | 0 | 9 | | Oops:invalid_opcode:#[##] | 0 | 9 | | RIP:dentry_open | 0 | 9 | | Kernel_panic-not_syncing:Fatal_exception | 0 | 9 | +------------------------------------------+------------+------------+ 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/202510201610.40b1a654-lkp@intel.com [ 58.472072][ T3648] ------------[ cut here ]------------ [ 58.472990][ T3648] kernel BUG at fs/open.c:1116! [ 58.479432][ T3648] Oops: invalid opcode: 0000 [#1] [ 58.480255][ T3648] CPU: 0 UID: 192664024 PID: 3648 Comm: trinity-c2 Tainted: G T 6.18.0-rc1-00006-gdc62b71efff8 #1 PREEMPT [ 58.482041][ T3648] Tainted: [T]=RANDSTRUCT [ 58.482680][ T3648] RIP: 0010:dentry_open (fs/open.c:1116) [ 58.483443][ T3648] Code: df 48 89 c3 48 89 c6 e8 90 fe ff ff 85 c0 74 0f 89 c5 48 89 df e8 82 92 00 00 48 63 c5 eb 03 48 89 d8 5b 5d c3 cc cc cc cc cc <0f> 0b 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 66 All code ======== 0: df 48 89 fisttps -0x77(%rax) 3: c3 ret 4: 48 89 c6 mov %rax,%rsi 7: e8 90 fe ff ff call 0xfffffffffffffe9c c: 85 c0 test %eax,%eax e: 74 0f je 0x1f 10: 89 c5 mov %eax,%ebp 12: 48 89 df mov %rbx,%rdi 15: e8 82 92 00 00 call 0x929c 1a: 48 63 c5 movslq %ebp,%rax 1d: eb 03 jmp 0x22 1f: 48 89 d8 mov %rbx,%rax 22: 5b pop %rbx 23: 5d pop %rbp 24: c3 ret 25: cc int3 26: cc int3 27: cc int3 28: cc int3 29: cc int3 2a:* 0f 0b ud2 <-- trapping instruction 2c: 66 66 66 66 66 66 2e data16 data16 data16 data16 data16 cs nopw 0x0(%rax,%rax,1) 33: 0f 1f 84 00 00 00 00 3a: 00 3b: 66 data16 3c: 66 data16 3d: 66 data16 3e: 66 data16 3f: 66 data16 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 66 66 66 66 66 66 2e data16 data16 data16 data16 data16 cs nopw 0x0(%rax,%rax,1) 9: 0f 1f 84 00 00 00 00 10: 00 11: 66 data16 12: 66 data16 13: 66 data16 14: 66 data16 15: 66 data16 [ 58.486214][ T3648] RSP: 0018:ffff88813b80fe20 EFLAGS: 00010246 [ 58.487088][ T3648] RAX: 0000000000000001 RBX: ffff888142398000 RCX: ffff888142354000 [ 58.488074][ T3648] RDX: ffff88813acdc000 RSI: 00000000fffffff9 RDI: ffff88813b80fe58 [ 58.489177][ T3648] RBP: 0000000000000213 R08: 0000000000000000 R09: 0000000000000000 [ 58.490214][ T3648] R10: ffff888141f59a90 R11: ffffffff81960fc9 R12: 0000000000000000 [ 58.491333][ T3648] R13: 00000000fffffff9 R14: ffff888102692798 R15: ffff888142354000 [ 58.492445][ T3648] FS: 00000000357bf880(0000) GS:0000000000000000(0000) knlGS:0000000000000000 [ 58.493720][ T3648] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.494658][ T3648] CR2: 00007ffffffff000 CR3: 0000000142163000 CR4: 00000000000406b0 [ 58.495806][ T3648] Call Trace: [ 58.496319][ T3648] [ 58.496723][ T3648] do_mq_open (ipc/mqueue.c:923) [ 58.497381][ T3648] __x64_sys_mq_open (ipc/mqueue.c:949 ipc/mqueue.c:942 ipc/mqueue.c:942) [ 58.498090][ T3648] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 58.498979][ T3648] do_syscall_64 (arch/x86/entry/syscall_64.c:?) [ 58.499657][ T3648] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 58.500484][ T3648] RIP: 0033:0x463519 [ 58.501061][ T3648] Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db 59 00 00 c3 66 2e 0f 1f 84 00 00 00 00 All code ======== 0: 00 f3 add %dh,%bl 2: c3 ret 3: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) a: 00 00 00 d: 0f 1f 40 00 nopl 0x0(%rax) 11: 48 89 f8 mov %rdi,%rax 14: 48 89 f7 mov %rsi,%rdi 17: 48 89 d6 mov %rdx,%rsi 1a: 48 89 ca mov %rcx,%rdx 1d: 4d 89 c2 mov %r8,%r10 20: 4d 89 c8 mov %r9,%r8 23: 4c 8b 4c 24 08 mov 0x8(%rsp),%r9 28: 0f 05 syscall 2a:* 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 30: 0f 83 db 59 00 00 jae 0x5a11 36: c3 ret 37: 66 data16 38: 2e cs 39: 0f .byte 0xf 3a: 1f (bad) 3b: 84 00 test %al,(%rax) 3d: 00 00 add %al,(%rax) ... Code starting with the faulting instruction =========================================== 0: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax 6: 0f 83 db 59 00 00 jae 0x59e7 c: c3 ret d: 66 data16 e: 2e cs f: 0f .byte 0xf 10: 1f (bad) 11: 84 00 test %al,(%rax) 13: 00 00 add %al,(%rax) ... [ 58.503916][ T3648] RSP: 002b:00007ffc376f2be8 EFLAGS: 00000246 ORIG_RAX: 00000000000000f0 [ 58.505150][ T3648] RAX: ffffffffffffffda RBX: 00000000000000f0 RCX: 0000000000463519 [ 58.506312][ T3648] RDX: 0000000000000030 RSI: fffffffffffffff9 RDI: 00007f9ad403e000 [ 58.507487][ T3648] RBP: 00007f9ad4949000 R08: 0000000030010000 R09: 0000000001000000 [ 58.508586][ T3648] R10: 00007f9ad403e008 R11: 0000000000000246 R12: 0000000000000002 [ 58.509732][ T3648] R13: 00007f9ad4949058 R14: 00000000357bf850 R15: 00007f9ad4949000 [ 58.510897][ T3648] [ 58.511374][ T3648] Modules linked in: [ 58.512025][ T3648] ---[ end trace 0000000000000000 ]--- [ 58.524399][ T3648] RIP: 0010:dentry_open (fs/open.c:1116) [ 58.527033][ T3648] Code: df 48 89 c3 48 89 c6 e8 90 fe ff ff 85 c0 74 0f 89 c5 48 89 df e8 82 92 00 00 48 63 c5 eb 03 48 89 d8 5b 5d c3 cc cc cc cc cc <0f> 0b 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 66 All code ======== 0: df 48 89 fisttps -0x77(%rax) 3: c3 ret 4: 48 89 c6 mov %rax,%rsi 7: e8 90 fe ff ff call 0xfffffffffffffe9c c: 85 c0 test %eax,%eax e: 74 0f je 0x1f 10: 89 c5 mov %eax,%ebp 12: 48 89 df mov %rbx,%rdi 15: e8 82 92 00 00 call 0x929c 1a: 48 63 c5 movslq %ebp,%rax 1d: eb 03 jmp 0x22 1f: 48 89 d8 mov %rbx,%rax 22: 5b pop %rbx 23: 5d pop %rbp 24: c3 ret 25: cc int3 26: cc int3 27: cc int3 28: cc int3 29: cc int3 2a:* 0f 0b ud2 <-- trapping instruction 2c: 66 66 66 66 66 66 2e data16 data16 data16 data16 data16 cs nopw 0x0(%rax,%rax,1) 33: 0f 1f 84 00 00 00 00 3a: 00 3b: 66 data16 3c: 66 data16 3d: 66 data16 3e: 66 data16 3f: 66 data16 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 66 66 66 66 66 66 2e data16 data16 data16 data16 data16 cs nopw 0x0(%rax,%rax,1) 9: 0f 1f 84 00 00 00 00 10: 00 11: 66 data16 12: 66 data16 13: 66 data16 14: 66 data16 15: 66 data16 The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20251020/202510201610.40b1a654-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki