From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.18]) (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 6B666372B4F for ; Thu, 30 Apr 2026 06:16:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=192.198.163.18 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777529812; cv=fail; b=Jwe6KwsGS7rPzhiHMKizrlhgDROAgvpmi4bULZR51dPw7fyjtQtAqRH03Cj1tWA6I8Alo0XPSPO0PlpEwkx49NwJUJDhp8H0oJg0vgB+NNGfIXwLMLS6pF6s6Ks1jRJup6AD9AKGRRiiI8UQYEGUMFmr+C+dfI5Cp8F1J1f1ro8= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777529812; c=relaxed/simple; bh=jGIIDJaCLmho0A0E6Dq/H4Mz4G1Fb600u91LXdMWaGU=; h=Date:From:To:CC:Subject:Message-ID:Content-Type: Content-Disposition:MIME-Version; b=C4n1/IiztjfBJAEQyTwE7cOnUWYRCWQ8/gEbCg9QWGAg8+vlMc542uqG7YanOh0dVev6ZsyM89vCy/My4CcO1Ps3n09CKuM+aIZGju+W0wKkFDzRX4BQuy3E5+tbNvgUTOLy66Ml+DHUmfGxx8UoM+j2wuoAcEsqQas1mgKOCE4= 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=X7mJi5mH; arc=fail smtp.client-ip=192.198.163.18 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="X7mJi5mH" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1777529811; x=1809065811; h=date:from:to:cc:subject:message-id:mime-version; bh=jGIIDJaCLmho0A0E6Dq/H4Mz4G1Fb600u91LXdMWaGU=; b=X7mJi5mHM8/2vzmJgLYKtuaYqHkFUKLPs1QD0gRBfggssKKxiWeKIfi/ vfU+hu67QR4Mxx3icWbopkrJjUueW5imq3LnWd6GJJ3zOO1M7UlXmEk1J kYdAWM/IEOF/3b1zLFjiIR/TfBJxbU3OYJ6ZZ6s0yR8HfkAfCEQSO2/Xh dnr6e4A6JaFj+ZRTUo3JRcqw3xnkukV37cODJXBEqZBTPvHL2dvpH+YPb GFkfAFlEWFlu9dxIQeRL4nzazW1ER8hb6UyJAUylS6wtULb05Skfp+JL5 iJhAe5hFkT0iWZzBLQfopLcBImxtOVDpTewQ4uDPsAJfmsDgDSNyJlRiR g==; X-CSE-ConnectionGUID: 7MvxUvTqQaGmJo2a73uUNA== X-CSE-MsgGUID: JBE6W9oxTH+tYe9faLThRA== X-IronPort-AV: E=McAfee;i="6800,10657,11771"; a="77636110" X-IronPort-AV: E=Sophos;i="6.23,207,1770624000"; d="scan'208";a="77636110" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by fmvoesa112.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Apr 2026 23:16:50 -0700 X-CSE-ConnectionGUID: lLEZ69uKQO+IyVjPnrBhoQ== X-CSE-MsgGUID: tEL+lIdfQmCqyJu2eSjHiQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,207,1770624000"; d="scan'208";a="239470505" Received: from fmsmsx901.amr.corp.intel.com ([10.18.126.90]) by fmviesa005.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Apr 2026 23:16:49 -0700 Received: from FMSMSX902.amr.corp.intel.com (10.18.126.91) 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 15.2.2562.37; Wed, 29 Apr 2026 23:16:49 -0700 Received: from fmsedg901.ED.cps.intel.com (10.1.192.143) 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 15.2.2562.37 via Frontend Transport; Wed, 29 Apr 2026 23:16:49 -0700 Received: from SA9PR02CU001.outbound.protection.outlook.com (40.93.196.0) by edgegateway.intel.com (192.55.55.81) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.37; Wed, 29 Apr 2026 23:16:47 -0700 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=S6pXI3I8FsmOwwint5aHNliPex37BHRauyAKcPPtMXGcpPEaSsdjWEd0765MBxnRpKrjMmza56k/5uF3J3O35xoi8+qCYXrASUFcDCdWxHX90iJ9PK5ArlS96lYEV1nqVgOg77ht6JvcqieWyexrWOLHW3hoGFJYv0uJkreuiQZ5hpoi79fbJhd1rWxiNZMV7yx9JCWiK2pntIIL1aRMrNpCoY6YI7yz/tbzdTfETw+DIPW6zO+jRqBx/a2wVVNUMVmma3GiCiOE86Hct5FW53nYFu44KUf3qXSkIZNVBbEjDGnAPsMWbQM0Sl3w6gg8jvcNESOwUABBF3heU/94jw== 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=nunu3Zghgq6rOjOjUR862Nm67qacyq7uMyqoLzMswQY=; b=isZ+rDBIkTsfcWE3FfCN16J2r5p7wQA+GjxXw3h2NfZtPsJ7MB/dibr6g/kite8kXE6L9rOXCGvTBkiFIcIGk5oK4kKZ7NUtYGpCEAEdx5piiZMZd9FXNC43sUOtgFi26AD/YKUF4nABmBa35ml2ybrqcJ0WItAkaCAjJnWta7p2kmuXBJsczkoGAGYCaoNdlTQKfNP4+OfrULE5mPJ8m/dcUAhfqKtENTdA54rkcpE8b6hhue74c2xR+1siLSC4dtIZQrZU3VyiIgr1NEinzJu1mYM9tVjprucgA3GPykr2KloWlKqE7cdgcVDpQt4lE1DNMRDyz6XplLt4DGJRLQ== 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 PH0PR11MB5832.namprd11.prod.outlook.com (2603:10b6:510:141::7) by DS4PPFC60125F65.namprd11.prod.outlook.com (2603:10b6:f:fc02::4b) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9870.20; Thu, 30 Apr 2026 06:16:45 +0000 Received: from PH0PR11MB5832.namprd11.prod.outlook.com ([fe80::106e:78dd:4c96:d707]) by PH0PR11MB5832.namprd11.prod.outlook.com ([fe80::106e:78dd:4c96:d707%3]) with mapi id 15.20.9870.020; Thu, 30 Apr 2026 06:16:45 +0000 Date: Thu, 30 Apr 2026 14:16:37 +0800 From: kernel test robot To: Shengming Hu CC: , , Vlastimil Babka , Harry Yoo , Hao Li , , Subject: [linux-next:master] [mm/slub] 8952728641: BUG_kmem_cache:Freepointer_corrupt Message-ID: <202604301428.e2b8d3dd-lkp@intel.com> Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline User-Agent: s-nail v14.9.25 X-ClientProxiedBy: SI2PR01CA0016.apcprd01.prod.exchangelabs.com (2603:1096:4:191::20) To PH0PR11MB5832.namprd11.prod.outlook.com (2603:10b6:510:141::7) Precedence: bulk X-Mailing-List: oe-lkp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PH0PR11MB5832:EE_|DS4PPFC60125F65:EE_ X-MS-Office365-Filtering-Correlation-Id: 71c9c452-6da0-4c50-5638-08dea6800dd3 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|1800799024|376014|18002099003|56012099003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:PH0PR11MB5832.namprd11.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(366016)(1800799024)(376014)(18002099003)(56012099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?La/MGTSsN2SidrMQWysV8L9JLG5OhL0MWigRUW0BJPfpIjS6yifG6lf26BTa?= =?us-ascii?Q?s3DtZ+fbqIzLIJ0/CURjWmVQgTXvAnFllfqiMIxFQb8NialzCbsfo0XOJb1a?= =?us-ascii?Q?/hY7T2Ly06JGkMtx292yuRtXh4H9fjWJzTb86GUAyF2RD/FsmXSKYdBhw3ZO?= =?us-ascii?Q?PqaFi2eIF1rt/MkWpR29I2lY1MUh06U17k9HWqxBlOYbqFJqc+Sw2KrqpA4s?= =?us-ascii?Q?AZBDjAisYhbJiKC3g4xZfqJe04m5J1ksbkCp96kSxk6BTzCL1QOjIfWI/6dg?= =?us-ascii?Q?UtnZU4dloHLR52bGXZ3na4a6EDpo5vIsfe6jtGfoFOMKLs9QaaiKcW5Qu8oP?= =?us-ascii?Q?xnzmZfcCO8+ros9CXiTUYdPMzdue+4krTsjXlhbSnRTcmflYskUdc/zGW49R?= =?us-ascii?Q?Cao3Uftyo7ztIuyNU9euP/LBmjoq5tBEMRMrEciSscH7Tq56hkHPRvRE5L0u?= =?us-ascii?Q?+oID1PLkK6rljTZviJUow989CIvRFeYPHOG/7UDnG3ZlzddPpPUy+PTE+5Vp?= =?us-ascii?Q?QowfvQkI3Nh8jBks1Cv2hnU6sWcVgZ6OoyNlS9+a2aYhmalV+bfAMPE0cBVK?= =?us-ascii?Q?xOY6/G6X5nLMKFnrocOy0sJEgDQg0R2VBQC2UkzlwMZ8BMhh84QQe6/lcgNX?= =?us-ascii?Q?nergqjnJb6btHnLfM/LKxAYC21wGZAo6jxncVTT6EVXkktIBiv98NB1pfhpY?= =?us-ascii?Q?n0bEmUFywEFBsmKnh2s5kMnztn8jQej/cxv1qQxtrxcDhOs1EbcEkZIrAhkU?= =?us-ascii?Q?PT5iB+bfS4kGZvyDZSc15X77K0Jk51QH7vleR/Fzomigot392fGZVbEtwIae?= =?us-ascii?Q?iNKFLR/qhu7BDqvzbhLauS5x401zNsoe/itl98MLwe60lNVYmXvvYYazlwab?= =?us-ascii?Q?MxQQNOueuFQXpyJkpwAIcP009Aw4vQHWLkw4cWqHy/N3WQZaaGDmc7N3d+Wy?= =?us-ascii?Q?4m5ylUyi9WcbyizAj0GORrhP177d8IR38ihvbHoOOdg5hG3SQOEKUU67iXLm?= =?us-ascii?Q?pjt0lmax0a077l6KvLipR4zIHSevw5SBeVSQ2zP0fmZImlI1mrEUfoRXkZrI?= =?us-ascii?Q?+UcKCSg43lgh1HfLpTzXSfmBkaP3GtBXEzAuB7KS3CcOAxR4ISNMh7FSOhLi?= =?us-ascii?Q?vwrW4w6lvkgDHVEqFPUGA9hHc2bH8GyCfVE2AbqldCkQm4dS7D0xRCfoSz6E?= =?us-ascii?Q?hTTwMt1q7A9CEJD4q8SW92G/gqmr3TzkFzYIBN1Rra4C2pdeeqMoPPEihUTU?= =?us-ascii?Q?NBGeoC3ZtuFJKuGwPw2zZMOO6a7i+6DN0qAvyz3pOqp0woDDJYQqWvqn38V6?= =?us-ascii?Q?wIg89W9sDOP8XE5sBWtbuaxOOxAbhCEwleYqKsXM3lob5bwGi8+N2eqI8Yl+?= =?us-ascii?Q?8/BotI89vmNd307i2P63xu0OGiP0HkCz0DIVG5D0spkp9dLTCsb/o8bQgRuf?= =?us-ascii?Q?umQdmhpbk31VIJXHTbicAsSWJ0Yo1pvetWN+F38MCye1C1yBjugstbCTX1ZJ?= =?us-ascii?Q?5tO9vNZMxu8QP9xrwcA95lqThpUtIJy/35svy9eG57uUAdMxvph4Wkc52BCc?= =?us-ascii?Q?dmuZlJnj7ErmPg58n5e1q2YhAJuZYU83dzuEKLzyEf0xpcpdSmDtEMxoOMI3?= =?us-ascii?Q?VgD7SY1RDJEW86LShST9PmXeuEAV7tRTAV84vyfOV8nH5wSpiQ/rpqP9ToWU?= =?us-ascii?Q?JXUQ5ap/B6AjmZr91Wu03PEj7ju/8m39n9nFJx78Kels7c32D7Ay/wCDq73M?= =?us-ascii?Q?oxh/n/rAgw=3D=3D?= X-Exchange-RoutingPolicyChecked: jlHoL+gz+2HjTCaRkniqGlrSynw8KINKXjS+dwgKWNf0MhdcaUIFNLjZSsASsIsq8pxyZCSAeBifdFBSKXenm0AfCF+4s3+L9oIHGaX4vZaUz7OhTil6i4n7ZC2NLMceuV1V9s6MEzQAFNY37YKzMfUzr97q//s+K6wxH3YPAGfYvvDhsD/nZ/ytPj/Po203Vm7xhtQfce/p4a90/8W4nyU2nMDlLTmdbNishH9aMLRpkAWQ8zxcG1dBmJmqzBTPQvWEk++FDebe5iZIZZn4FtucdViNWAd0f0a5hvqDluzp4Mxvss3oaM9WrgKygp/4LNeSXBhDoCHdNB8DcCKlJA== X-MS-Exchange-CrossTenant-Network-Message-Id: 71c9c452-6da0-4c50-5638-08dea6800dd3 X-MS-Exchange-CrossTenant-AuthSource: PH0PR11MB5832.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Apr 2026 06:16:45.4139 (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: O9ijk37V+eQJm/yVWt27v8OZsqNa1eIT23SZFtYhPXZrVac/MYZ8r6Ebbpq85CfH2KEd589rfDjnrygR9HaCJg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS4PPFC60125F65 X-OriginatorOrg: intel.com Hello, kernel test robot noticed "BUG_kmem_cache:Freepointer_corrupt" on: commit: 8952728641305ebcd03e80f79b8d31bb41d6d95f ("mm/slub: defer freelist construction until after bulk allocation from a new slab") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master [test failed on linux-next/master 9974969c14031a097d6b45bcb7a06bb4aa525c40] in testcase: boot config: x86_64-randconfig-001-20251114 compiler: gcc-14 test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 32G (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/202604301428.e2b8d3dd-lkp@intel.com [ 53.929047][ T0] ============================================================================= [ 53.931786][ T0] BUG kmem_cache (Tainted: G T ): Freepointer corrupt [ 53.934858][ T0] ----------------------------------------------------------------------------- [ 53.934858][ T0] [ 53.934858][ T0] ----------------------------------------------------------------------------- [ 53.934858][ T0] [ 53.939608][ T0] Slab 0xffffea0004001040 objects=9 used=1 fp=0xffff888100041200 flags=0x4000000000000000(zone=2) [ 53.944008][ T0] Object 0xffff888100041040 @offset=64 fp=0x64ae22a70baa83ae [ 53.944008][ T0] [ 53.944008][ T0] Object 0xffff888100041040 @offset=64 fp=0x64ae22a70baa83ae [ 53.944008][ T0] [ 53.950913][ T0] Redzone ffff888100041000: bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ [ 53.954703][ T0] Redzone ffff888100041010: bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ [ 53.957662][ T0] Redzone ffff888100041020: bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ [ 53.960527][ T0] Redzone ffff888100041030: bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ [ 53.963607][ T0] Object ffff888100041040: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk [ 53.966785][ T0] Object ffff888100041050: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk [ 53.969753][ T0] Object ffff888100041060: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk [ 53.972621][ T0] Object ffff888100041070: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk [ 53.975559][ T0] Object ffff888100041080: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk [ 53.978756][ T0] Object ffff888100041090: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk [ 53.981898][ T0] Object ffff8881000410a0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk [ 53.985140][ T0] Object ffff8881000410b0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk [ 53.988289][ T0] Object ffff8881000410c0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk [ 53.991279][ T0] Object ffff8881000410d0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk [ 53.993987][ T0] Object ffff8881000410e0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk [ 53.996539][ T0] Object ffff8881000410f0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk [ 53.999493][ T0] Object ffff888100041100: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk [ 54.002253][ T0] Object ffff888100041110: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 kkkkkkkkkkkkkkk. [ 54.005170][ T0] Redzone ffff888100041120: bb bb bb bb bb bb bb bb ........ [ 54.007879][ T0] Padding ffff888100041180: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ [ 54.010661][ T0] Padding ffff888100041190: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ [ 54.013403][ T0] Padding ffff8881000411a0: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ [ 54.016151][ T0] Padding ffff8881000411b0: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ [ 54.019282][ T0] Disabling lock debugging due to kernel taint [ 54.021208][ T0] ------------[ cut here ]------------ [ 54.022797][ T0] WARNING: mm/slub.c:1231 at object_err+0x6c/0x7f, CPU#0: swapper/0 [ 54.025237][ T0] Modules linked in: [ 54.026745][ T0] CPU: 0 UID: 0 PID: 0 Comm: swapper Tainted: G B T 7.1.0-rc1-00001-g895272864130 #1 PREEMPT(undef) [ 54.030461][ T0] Tainted: [B]=BAD_PAGE, [T]=RANDSTRUCT [ 54.032017][ T0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 54.036374][ T0] RIP: 0010:object_err+0x6c/0x7f [ 54.039295][ T0] Code: c7 c7 1f 95 42 85 e8 b3 1a fe ff eb 0e 48 89 da 4c 89 ee 4c 89 e7 e8 13 fe ff ff be 01 00 00 00 bf 05 00 00 00 e8 c4 f7 2f 00 <0f> 0b 5b 41 5c 41 5d 5d 31 c0 31 d2 31 c9 31 f6 31 ff c3 be 00 10 [ 54.049629][ T0] RSP: 0000:ffffffff85607c40 EFLAGS: 00010046 [ 54.051811][ T0] RAX: 0000000000000000 RBX: ffff888100041040 RCX: 0000000000000000 [ 54.054369][ T0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 54.056862][ T0] RBP: ffffffff85607c58 R08: 0000000000000000 R09: 0000000000000000 [ 54.059766][ T0] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff86ad8f20 [ 54.062963][ T0] R13: ffffea0004001040 R14: 00000000000000bb R15: 0000000000000001 [ 54.066945][ T0] FS: 0000000000000000(0000) GS:0000000000000000(0000) knlGS:0000000000000000 [ 54.070095][ T0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.072475][ T0] CR2: ffff88883ffff000 CR3: 00000000056ba000 CR4: 00000000000000b0 [ 54.076829][ T0] Call Trace: [ 54.077963][ T0] [ 54.079139][ T0] check_object.cold+0x4b/0x50 [ 54.080583][ T0] alloc_debug_processing+0x9b/0x180 [ 54.082495][ T0] alloc_single_from_new_slab+0x82/0x200 [ 54.084323][ T0] ? alloc_slab_obj_exts_early+0x5/0x2c0 [ 54.086455][ T0] ? allocate_slab+0x11b/0x380 [ 54.087892][ T0] ___slab_alloc+0x1ad/0x340 [ 54.089129][ T0] ? bootstrap+0x20/0xb0 [ 54.090520][ T0] kmem_cache_alloc_noprof+0x30b/0x540 [ 54.092010][ T0] ? bootstrap+0x20/0xb0 [ 54.093328][ T0] bootstrap+0x20/0xb0 [ 54.094484][ T0] kmem_cache_init+0xbb/0x330 [ 54.095786][ T0] ? preallocate_vmalloc_pages+0x1a4/0x2b0 [ 54.097485][ T0] mm_core_init+0x12b/0x170 [ 54.098935][ T0] start_kernel+0x173/0x370 [ 54.100291][ T0] x86_64_start_reservations+0x28/0x30 [ 54.101912][ T0] x86_64_start_kernel+0x131/0x140 [ 54.103325][ T0] common_startup_64+0xbd/0xc8 [ 54.104692][ T0] RIP: 2e66:0x841f0f [ 54.105837][ T0] Code: Unable to access opcode bytes at 0x841ee5. [ 54.107636][ T0] RSP: 0084:1f0f2e6600000000 EFLAGS: 841f0f2e660000 ORIG_RAX: 2e66000000000084 [ 54.110294][ T0] RAX: 2e66000000000084 RBX: 2e66000000000084 RCX: 0000000000841f0f [ 54.112621][ T0] RDX: 000000841f0f2e66 RSI: 00841f0f2e660000 RDI: 1f0f2e6600000000 [ 54.114700][ T0] RBP: 1f0f2e6600000000 R08: 1f0f2e6600000000 R09: 00841f0f2e660000 [ 54.117100][ T0] R10: 000000841f0f2e66 R11: 0000000000841f0f R12: 00841f0f2e660000 [ 54.119233][ T0] R13: 000000841f0f2e66 R14: 0000000000841f0f R15: 2e66000000000084 [ 54.121210][ T0] [ 54.122004][ T0] irq event stamp: 0 [ 54.122967][ T0] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [ 54.124748][ T0] hardirqs last disabled at (0): [<0000000000000000>] 0x0 [ 54.126760][ T0] softirqs last enabled at (0): [<0000000000000000>] 0x0 [ 54.128589][ T0] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 54.130515][ T0] ---[ end trace 0000000000000000 ]--- [ 54.131853][ T0] FIX kmem_cache: Marking all objects used [ 54.137998][ T0] ============================================================================= [ 54.164966][ T0] BUG kmem_cache (Tainted: G B W T ): Freepointer corrupt [ 54.168591][ T0] ----------------------------------------------------------------------------- [ 54.168591][ T0] [ 54.168591][ T0] ----------------------------------------------------------------------------- [ 54.168591][ T0] [ 54.172896][ T0] Slab 0xffffea0004001080 objects=9 used=1 fp=0xffff888100042200 flags=0x4000000000000000(zone=2) [ 54.176176][ T0] Object 0xffff888100042040 @offset=64 fp=0x649e22a70baa83ae [ 54.176176][ T0] [ 54.176176][ T0] Object 0xffff888100042040 @offset=64 fp=0x649e22a70baa83ae [ 54.176176][ T0] [ 54.179185][ T0] Redzone ffff888100042000: bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ [ 54.182194][ T0] Redzone ffff888100042010: bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ [ 54.185079][ T0] Redzone ffff888100042020: bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ [ 54.188065][ T0] Redzone ffff888100042030: bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ [ 54.191066][ T0] Object ffff888100042040: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk [ 54.194179][ T0] Object ffff888100042050: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk [ 54.197272][ T0] Object ffff888100042060: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk [ 54.200275][ T0] Object ffff888100042070: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk [ 54.203121][ T0] Object ffff888100042080: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk [ 54.206273][ T0] Object ffff888100042090: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk [ 54.209183][ T0] Object ffff8881000420a0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk [ 54.211956][ T0] Object ffff8881000420b0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk [ 54.215170][ T0] Object ffff8881000420c0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk [ 54.218051][ T0] Object ffff8881000420d0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk [ 54.220882][ T0] Object ffff8881000420e0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk [ 54.223739][ T0] Object ffff8881000420f0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk [ 54.226475][ T0] Object ffff888100042100: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk [ 54.229268][ T0] Object ffff888100042110: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 kkkkkkkkkkkkkkk. [ 54.232081][ T0] Redzone ffff888100042120: bb bb bb bb bb bb bb bb ........ [ 54.240289][ T0] Padding ffff888100042180: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ [ 54.244580][ T0] Padding ffff888100042190: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ [ 54.248946][ T0] Padding ffff8881000421a0: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ [ 54.252300][ T0] Padding ffff8881000421b0: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ [ 54.255423][ T0] ------------[ cut here ]------------ [ 54.256910][ T0] WARNING: mm/slub.c:1231 at object_err+0x6c/0x7f, CPU#0: swapper/0 [ 54.259466][ T0] Modules linked in: [ 54.260739][ T0] CPU: 0 UID: 0 PID: 0 Comm: swapper Tainted: G B W T 7.1.0-rc1-00001-g895272864130 #1 PREEMPT(undef) [ 54.264411][ T0] Tainted: [B]=BAD_PAGE, [W]=WARN, [T]=RANDSTRUCT [ 54.266719][ T0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 54.271041][ T0] RIP: 0010:object_err+0x6c/0x7f [ 54.272617][ T0] Code: c7 c7 1f 95 42 85 e8 b3 1a fe ff eb 0e 48 89 da 4c 89 ee 4c 89 e7 e8 13 fe ff ff be 01 00 00 00 bf 05 00 00 00 e8 c4 f7 2f 00 <0f> 0b 5b 41 5c 41 5d 5d 31 c0 31 d2 31 c9 31 f6 31 ff c3 be 00 10 [ 54.278858][ T0] RSP: 0000:ffffffff85607c40 EFLAGS: 00010046 [ 54.280701][ T0] RAX: 0000000000000000 RBX: ffff888100042040 RCX: 0000000000000000 [ 54.282917][ T0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 54.285854][ T0] RBP: ffffffff85607c58 R08: 0000000000000000 R09: 0000000000000000 [ 54.288711][ T0] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff86ad8f20 [ 54.291194][ T0] R13: ffffea0004001080 R14: 00000000000000bb R15: 0000000000000001 [ 54.293497][ T0] FS: 0000000000000000(0000) GS:0000000000000000(0000) knlGS:0000000000000000 [ 54.296100][ T0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.298178][ T0] CR2: ffff88883ffff000 CR3: 00000000056ba000 CR4: 00000000000000b0 [ 54.300578][ T0] Call Trace: [ 54.301701][ T0] [ 54.302556][ T0] check_object.cold+0x4b/0x50 [ 54.304075][ T0] alloc_debug_processing+0x9b/0x180 [ 54.305771][ T0] alloc_single_from_new_slab+0x82/0x200 [ 54.307575][ T0] ? alloc_slab_obj_exts_early+0x5/0x2c0 [ 54.309885][ T0] ? allocate_slab+0x11b/0x380 [ 54.311397][ T0] ___slab_alloc+0x1ad/0x340 [ 54.312978][ T0] ? bootstrap+0x20/0xb0 [ 54.314381][ T0] kmem_cache_alloc_noprof+0x30b/0x540 [ 54.316375][ T0] ? bootstrap+0x20/0xb0 [ 54.317924][ T0] bootstrap+0x20/0xb0 [ 54.319165][ T0] kmem_cache_init+0xbb/0x330 [ 54.320577][ T0] ? preallocate_vmalloc_pages+0x1a4/0x2b0 [ 54.322318][ T0] mm_core_init+0x12b/0x170 [ 54.323813][ T0] start_kernel+0x173/0x370 [ 54.325087][ T0] x86_64_start_reservations+0x28/0x30 [ 54.326828][ T0] x86_64_start_kernel+0x131/0x140 [ 54.328433][ T0] common_startup_64+0xbd/0xc8 [ 54.329884][ T0] RIP: 2e66:0x841f0f [ 54.331003][ T0] Code: Unable to access opcode bytes at 0x841ee5. [ 54.333204][ T0] RSP: 0084:1f0f2e6600000000 EFLAGS: 841f0f2e660000 ORIG_RAX: 2e66000000000084 [ 54.341141][ T0] RAX: 2e66000000000084 RBX: 2e66000000000084 RCX: 0000000000841f0f [ 54.344540][ T0] RDX: 000000841f0f2e66 RSI: 00841f0f2e660000 RDI: 1f0f2e6600000000 [ 54.348106][ T0] RBP: 1f0f2e6600000000 R08: 1f0f2e6600000000 R09: 00841f0f2e660000 [ 54.350959][ T0] R10: 000000841f0f2e66 R11: 0000000000841f0f R12: 00841f0f2e660000 [ 54.353348][ T0] R13: 000000841f0f2e66 R14: 0000000000841f0f R15: 2e66000000000084 [ 54.355758][ T0] [ 54.356638][ T0] irq event stamp: 0 [ 54.357904][ T0] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [ 54.360403][ T0] hardirqs last disabled at (0): [<0000000000000000>] 0x0 [ 54.362935][ T0] softirqs last enabled at (0): [<0000000000000000>] 0x0 [ 54.365496][ T0] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 54.367816][ T0] ---[ end trace 0000000000000000 ]--- The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20260430/202604301428.e2b8d3dd-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki