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 2827CC4332F for ; Thu, 9 Nov 2023 05:20:02 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 985808002E; Thu, 9 Nov 2023 00:20:01 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 8E6C68002D; Thu, 9 Nov 2023 00:20:01 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 739B08002E; Thu, 9 Nov 2023 00:20:01 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id 5B9448002D for ; Thu, 9 Nov 2023 00:20:01 -0500 (EST) Received: from smtpin26.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay01.hostedemail.com (Postfix) with ESMTP id 355D41CB711 for ; Thu, 9 Nov 2023 05:20:01 +0000 (UTC) X-FDA: 81437264202.26.1D777E7 Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.31]) by imf28.hostedemail.com (Postfix) with ESMTP id 632FEC0005 for ; Thu, 9 Nov 2023 05:19:55 +0000 (UTC) Authentication-Results: imf28.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b="Z/lFq+J5"; spf=pass (imf28.hostedemail.com: domain of oliver.sang@intel.com designates 134.134.136.31 as permitted sender) smtp.mailfrom=oliver.sang@intel.com; arc=reject ("signature check failed: fail, {[1] = sig:microsoft.com:reject}"); dmarc=pass (policy=none) header.from=intel.com ARC-Seal: i=2; s=arc-20220608; d=hostedemail.com; t=1699507198; a=rsa-sha256; cv=fail; b=KLdT889RW+sAzOU43mud3ksbaRwKDF1f6/VUB6jzuN7JfRk1XgAN3WEDIuUY8JwjAMrh3q n2xv2W/pmmcUJbS/+Io/ncjhsMnU04HNnGRepghRI9Y65jEuj770ivgLSkMV1rjKd1IIDT Iz0nCMDvF14LwkjfxaWcaqD9hZzz/vI= ARC-Authentication-Results: i=2; imf28.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b="Z/lFq+J5"; spf=pass (imf28.hostedemail.com: domain of oliver.sang@intel.com designates 134.134.136.31 as permitted sender) smtp.mailfrom=oliver.sang@intel.com; arc=reject ("signature check failed: fail, {[1] = sig:microsoft.com:reject}"); 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=1699507198; 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:in-reply-to:references:dkim-signature; bh=2ZyTL8+dE+LEA9kYG6UhS6qtZNs3yzKi5sYxdYLYTQU=; b=i+lrWE1vUekESen5Yirk0ZgRU+d/d9rKzTCbGwUhLH0AQZ2j/9hdnDW3SR83nk3fHVmscG 31wfLg7exPotAgOYb8sIvKTJUJ6ipKjk5A6bOA1Kix9K085Vv6KX06Vs4mLKwB7i2HLV/Y PjouOxNuzIw5DH0omWJ4N7gL9tFWVJ8= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1699507197; x=1731043197; h=date:from:to:cc:subject:message-id:in-reply-to: mime-version; bh=RZaow84lJ6ph8r2hBSUOQBVQbCm7I4rqOTgNUMcrTx4=; b=Z/lFq+J5Xi2nmWUxxbA9PrTfD4+bDB6k+9HTMxvn1Z5W6IjUAPzkVTMA HkbJnJ2kUBYUh/woDY22YkSUgwmQiPz3kJ9Bcf9m1Xy/DEUIxnRDbaE6k 5Ho2FRzUZPCCTwmmvlkOGdqJjHF2w/7q6dwoit3lH9GsXVEuEDzVQmUyJ 8ytwT9R5w8qti0GEZ0/A4Ncj7wl8HO/ImCEb0lFW94jj8gpW7Gcd6ExMA nJ+B1Zx5I/3cLx0pmm/ArbhQKheXdmQhd0gYtxBj7nSXIyBwiqw4bv60r /nJVgR2fslXOn/5Ol9RXcIGRz0CidlehUr2UI4jf6A9XljbsLku15TVo0 A==; X-IronPort-AV: E=McAfee;i="6600,9927,10888"; a="454222970" X-IronPort-AV: E=Sophos;i="6.03,288,1694761200"; d="scan'208";a="454222970" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Nov 2023 21:19:51 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10888"; a="936737098" X-IronPort-AV: E=Sophos;i="6.03,288,1694761200"; d="scan'208";a="936737098" Received: from fmsmsx601.amr.corp.intel.com ([10.18.126.81]) by orsmga005.jf.intel.com with ESMTP/TLS/AES256-GCM-SHA384; 08 Nov 2023 21:19:50 -0800 Received: from fmsmsx602.amr.corp.intel.com (10.18.126.82) by fmsmsx601.amr.corp.intel.com (10.18.126.81) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.34; Wed, 8 Nov 2023 21:19:49 -0800 Received: from fmsedg601.ED.cps.intel.com (10.1.192.135) by fmsmsx602.amr.corp.intel.com (10.18.126.82) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.34 via Frontend Transport; Wed, 8 Nov 2023 21:19:49 -0800 Received: from NAM12-BN8-obe.outbound.protection.outlook.com (104.47.55.168) by edgegateway.intel.com (192.55.55.70) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.34; Wed, 8 Nov 2023 21:19:49 -0800 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=XySpqYjrP6DweGp/btmFnphFkQRM0rLWh5VBgdhwNIgB46x6FWNwMziL+86IdAJ7jC96NP65eFV9SjCyo6+CWp9ISn7x+xmYh1mOtdj7sxkNdn6tTA5jdKhy2IGTQ9aMghFIJWpYwAlS5ObNOtxwi4I14MRjCPrU52lVT79G/xCiKbjPVDty7DFNy5raG9JiVhgS+rXBT8GkQS4oFlB4WcJzoIoydaAmk+7leTUV7FnyQyGXHcblkIv1aVj3KveimJ7uq5E5pH6GqqMFjlhmk9QB3NjUL//jz7+qZAvnK7tO4s6Mz1Z2stUIJtO5ly03d3JdJLPrRlI7orHQExgwnQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; 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=2ZyTL8+dE+LEA9kYG6UhS6qtZNs3yzKi5sYxdYLYTQU=; b=Pg9OQ6cFbZ/GAozqqgIq1qK2e6kqc2EoI57Yx3HvrOrqnz8P3sPvYAupSUmZ7ZEVgygy14n9oSwIhk8hY/yIqT1MHHvt/y8uWFaeiTalSTicC/9RY3KBD5RBymm3hRe0MQ8w+7bi9FKodHn9WDwYvqe2akhk4GExtaVsGnkBZbUoinYwMjNI52riEKHEhGLFMmg3NhM525quT8hQxZ1dI8yg+t2/lFXPIy4HQObUSRoqR95SxdyuYUKbqaIRd5I61SATauslGE/5x19cLv4Xs/Oa174iRMdihID3mXWKR2ev+Lxp2+2M1Rd/iJzNGzoSx1ogNYaPeTIbNDlAN1+N+w== 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 PH8PR11MB6779.namprd11.prod.outlook.com (2603:10b6:510:1ca::17) by CH3PR11MB8563.namprd11.prod.outlook.com (2603:10b6:610:1af::12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6977.18; Thu, 9 Nov 2023 05:19:46 +0000 Received: from PH8PR11MB6779.namprd11.prod.outlook.com ([fe80::b8:30e8:1502:b2a7]) by PH8PR11MB6779.namprd11.prod.outlook.com ([fe80::b8:30e8:1502:b2a7%4]) with mapi id 15.20.6954.029; Thu, 9 Nov 2023 05:19:46 +0000 Date: Thu, 9 Nov 2023 13:19:38 +0800 From: kernel test robot To: CC: , , , , Ben Greear , Subject: Re: [PATCH/RFC] debugobjects/slub: Print slab info and backtrace. Message-ID: <202311091331.f2eaf4f7-oliver.sang@intel.com> Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20231103013704.1232723-1-greearb@candelatech.com> X-ClientProxiedBy: SI1PR02CA0026.apcprd02.prod.outlook.com (2603:1096:4:1f4::11) To PH8PR11MB6779.namprd11.prod.outlook.com (2603:10b6:510:1ca::17) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PH8PR11MB6779:EE_|CH3PR11MB8563:EE_ X-MS-Office365-Filtering-Correlation-Id: e9403f9f-3b75-4293-ac35-08dbe0e37caa X-LD-Processed: 46c98d88-e344-4ed4-8496-4ed7712e255d,ExtAddr X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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:PH8PR11MB6779.namprd11.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230031)(39860400002)(376002)(366004)(346002)(396003)(136003)(230173577357003)(230922051799003)(230273577357003)(1800799009)(186009)(64100799003)(451199024)(6506007)(8676002)(6486002)(966005)(4326008)(8936002)(6666004)(6512007)(5660300002)(26005)(107886003)(66556008)(1076003)(316002)(478600001)(6916009)(66476007)(66946007)(2616005)(2906002)(41300700001)(83380400001)(82960400001)(36756003)(86362001)(38100700002);DIR:OUT;SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?v4DInFp40BPTAtjyExiBfZYzfhmHj3AiNMWgFw45MOu6wGheVOuNkABoVZjT?= =?us-ascii?Q?8LvRSgtUhHv/0RHfoWcd03jVtNpExxcxcbB6TUCHuMyvfTg4gE8eWPrnX8I3?= =?us-ascii?Q?hVedy4QeK7aBsBP87Bkt6/pHtV5QSBOQbRtZ0T6H6nfOGpZ79YcZMxuGBR++?= =?us-ascii?Q?jn3ZhwkvTzCpIC+vUZeR0I9dbjCWbKC09o+IgQF+4m32wHZMwiEgXJq1pzPB?= =?us-ascii?Q?pyPHTxagU1dFGF8ODUl3mKE1PTvpP30zt29+0doRuumYIrMp/sDr+p635OJ7?= =?us-ascii?Q?87ozrCeFVEvx/YTug/y+xtbAuEOZNOh5T64sJL7xFq2lHdfTn/azHi7OAKyQ?= =?us-ascii?Q?73TeE68y1qREhenY7tPhQ5WO+yzYIQ2YjqRXm376cgT2ZEiALQJQ7Opn07+K?= =?us-ascii?Q?d9QobvZJYmCiA043P/clV741vInqOcEbDnw7y8K/Esj8y65gAhFrJfe2eZEi?= =?us-ascii?Q?LestaLBsfQSW0YxS68uYnfWIaIlxniL46Nm/2xqDO/qHiRGzHmNwY5eLiBgO?= =?us-ascii?Q?dEC84yKFZchRfF/PL+dS5ddFdBjv7PSmcvnMrKwIOu2rLJzL6scTuSyJOZbG?= =?us-ascii?Q?WaxuWgl+O206nU88PvGKGd7SPTdP0nsMZXLFxw7dDT3phKI7GieBDHJvsPGu?= =?us-ascii?Q?q4fjvU02UN3Qmihzt+x/o01SRy1Qz/aO2WhBdYw9mmth6aCiV7TyUawQK6nI?= =?us-ascii?Q?FbL+1jBddSGMIOoZe9do4oC6WFxLGc7ylA9HmoH9/6e0pahklXRoQKuNoiFO?= =?us-ascii?Q?3IaL6o5+jLN7hPFb3ito05j2+OCe/X+BIZ1T1ZqruxpiYfR++RPFp5Fz4+Z6?= =?us-ascii?Q?X/wD+eMZga8J899h/PXvVzzvT8BQRO6BVdXV0RzJtKF6wQ+mz2QS65PHLkG5?= =?us-ascii?Q?cJ+jOU8UpQFCIjrllB0/VqWQdpDTJe5oeCjsFrnx0OGD8QZ3iFvo85THy8Cp?= =?us-ascii?Q?Hs+/lz0Qw8VpRoOlWaUUCh74JZOEdtcjvlyHDjvwDn8Zo90or8ZP7RWLnt9Z?= =?us-ascii?Q?BBn0TEQPo3KZLEQdzASN9mdZBr/epcjhAO8sAnNveW2UtEMB16qYSrZ0Y7tE?= =?us-ascii?Q?7g2aqQn2xU+OmoOH4Ezm3k05AAUofaFPHCxvlHDnJFlzWPHXkAr5Yr+EHyEM?= =?us-ascii?Q?yQcdKPrOKuSVsVQRZE8sm2QCfS16O+cXGdKACdUfkT4K1FJk54w9lJ0xhUQx?= =?us-ascii?Q?nfE9ERcsDQsHObjUwmqmdW4WkHTkpc2F1aCCbkrr8TeJqxwKs7Z2Zhkn8MGt?= =?us-ascii?Q?NiELejigYyCM7VmYmEAP0UOo+ecCbf+y+LZzbrlR/Ps5NVEVKcBOFxPtRyy/?= =?us-ascii?Q?nMJJrPszrfbl/bbZpjhypHXrVNrDHAICL6wlPuB8w+Xy5KB68TaPPIoMu04M?= =?us-ascii?Q?Hcmj+CkMB9usJtlGvUW6Hy0KidpKvaRMi57+a+WcamYMwclg47P/s1C9lEhH?= =?us-ascii?Q?LiJwNV3mBJnVsZhCHHBbMcuYjB2ebPg4hNJcApfUxfQcZ+drxw6fcYe7lBw+?= =?us-ascii?Q?PMe6FSRt7+6Lcrv3XbGTl3xZ63Wcx6Fc01zdjK7lQWfxD0V+w+AcPaugmYYX?= =?us-ascii?Q?pEmwW9dMRJQXMl3S8Ta/YUdA/qsWjXs4fiNsojEa?= X-MS-Exchange-CrossTenant-Network-Message-Id: e9403f9f-3b75-4293-ac35-08dbe0e37caa X-MS-Exchange-CrossTenant-AuthSource: PH8PR11MB6779.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 Nov 2023 05:19:46.0103 (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: Hwp+8EWlsn++v7sTlh5hvLCgRVC8h6Uaa3Ik9k56DxrcWTZj2NQCdmp42UoX2RKhuNAez/HSnydzgUHCHIp/Fw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH3PR11MB8563 X-OriginatorOrg: intel.com X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 632FEC0005 X-Stat-Signature: tzqfbnb3uw47niczu9sumd4wy9p4dcs7 X-Rspam-User: X-HE-Tag: 1699507195-414508 X-HE-Meta: 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 GAMyTlfE 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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, kernel test robot noticed "WARNING:possible_recursive_locking_detected" on: commit: d132b3de19193c996402718d76e63f797d4259a9 ("[PATCH/RFC] debugobjects/slub: Print slab info and backtrace.") url: https://github.com/intel-lab-lkp/linux/commits/greearb-candelatech-com/debugobjects-slub-Print-slab-info-and-backtrace/20231103-093945 base: git://git.kernel.org/cgit/linux/kernel/git/vbabka/slab.git for-next patch link: https://lore.kernel.org/all/20231103013704.1232723-1-greearb@candelatech.com/ patch subject: [PATCH/RFC] debugobjects/slub: Print slab info and backtrace. in testcase: boot compiler: gcc-7 test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G (please refer to attached dmesg/kmsg for entire log/backtrace) the issue doesn't always happen for this commit in our tests (shows 39 times in 50 runs), but keeps clean on parent. 90f055df112162fd d132b3de19193c996402718d76e ---------------- --------------------------- fail:runs %reproduction fail:runs | | | :51 76% 39:50 dmesg.WARNING:possible_recursive_locking_detected :51 76% 39:50 dmesg.WARNING:possible_recursive_locking_detected_swapper_is_trying_to_acquire_lock:at:__debug_check_no_obj_freed_but_task_is_already_holding_lock:at:__debug_object_init/0x 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/202311091331.f2eaf4f7-oliver.sang@intel.com [ 2.997328][ T1] WARNING: possible recursive locking detected [ 2.997927][ T1] 6.6.0-rc4-00006-gd132b3de1919 #1 Tainted: G T [ 2.997927][ T1] -------------------------------------------- [ 2.997927][ T1] swapper/1 is trying to acquire lock: [ 2.997927][ T1] ffffffff85425790 (&obj_hash[i].lock){..-.}-{2:2}, at: __debug_check_no_obj_freed (lib/debugobjects.c:1057) [ 2.997927][ T1] [ 2.997927][ T1] but task is already holding lock: [ 2.997927][ T1] ffffffff8531abc0 (&obj_hash[i].lock){..-.}-{2:2}, at: __debug_object_init (lib/debugobjects.c:528 lib/debugobjects.c:667) [ 2.997927][ T1] [ 2.997927][ T1] other info that might help us debug this: [ 2.997927][ T1] Possible unsafe locking scenario: [ 2.997927][ T1] [ 2.997927][ T1] CPU0 [ 2.997927][ T1] ---- [ 2.997927][ T1] lock(&obj_hash[i].lock); [ 2.997927][ T1] [ 2.997927][ T1] *** DEADLOCK *** [ 2.997927][ T1] [ 2.997927][ T1] May be due to missing lock nesting notation [ 2.997927][ T1] [ 2.997927][ T1] 1 lock held by swapper/1: [ 2.997927][ T1] #0: ffffffff8531abc0 (&obj_hash[i].lock){..-.}-{2:2}, at: __debug_object_init (lib/debugobjects.c:528 lib/debugobjects.c:667) [ 2.997927][ T1] [ 2.997927][ T1] stack backtrace: [ 2.997927][ T1] CPU: 0 PID: 1 Comm: swapper Tainted: G T 6.6.0-rc4-00006-gd132b3de1919 #1 2ef50b864013db82ef063ed2d8014756ac6c0996 [ 2.997927][ T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 2.997927][ T1] Call Trace: [ 2.997927][ T1] [ 2.997927][ T1] __lock_acquire (kernel/locking/lockdep.c:5137) [ 2.997927][ T1] ? local_clock (arch/x86/include/asm/preempt.h:85 kernel/sched/clock.c:316) [ 2.997927][ T1] ? lock_release (kernel/locking/lockdep.c:223 kernel/locking/lockdep.c:352 kernel/locking/lockdep.c:5435 kernel/locking/lockdep.c:5773) [ 2.997927][ T1] lock_acquire (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5755) [ 2.997927][ T1] ? __debug_check_no_obj_freed (lib/debugobjects.c:1057) [ 2.997927][ T1] _raw_spin_lock_irqsave (include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) [ 2.997927][ T1] ? __debug_check_no_obj_freed (lib/debugobjects.c:1057) [ 2.997927][ T1] __debug_check_no_obj_freed (lib/debugobjects.c:1057) [ 2.997927][ T1] ? local_clock (arch/x86/include/asm/preempt.h:85 kernel/sched/clock.c:316) [ 2.997927][ T1] ? lock_release (kernel/locking/lockdep.c:223 kernel/locking/lockdep.c:352 kernel/locking/lockdep.c:5435 kernel/locking/lockdep.c:5773) [ 2.997927][ T1] free_unref_page_prepare (mm/page_alloc.c:1146 mm/page_alloc.c:2312) [ 2.997927][ T1] ? find_held_lock (kernel/locking/lockdep.c:5243) [ 2.997927][ T1] free_unref_page (mm/page_alloc.c:2405) [ 2.997927][ T1] __stack_depot_save (lib/stackdepot.c:443) [ 2.997927][ T1] set_track_prepare (mm/kmemleak.c:620) [ 2.997927][ T1] ? pm_runtime_init (drivers/base/power/runtime.c:1731) [ 2.997927][ T1] ? device_initialize (drivers/base/core.c:3102) [ 2.997927][ T1] ? device_register (drivers/base/core.c:3706) [ 2.997927][ T1] ? subsys_register (drivers/base/bus.c:1230) [ 2.997927][ T1] ? container_dev_init (drivers/base/container.c:39) [ 2.997927][ T1] ? kernel_init_freeable (init/main.c:1327 init/main.c:1547) [ 2.997927][ T1] ? kernel_init (init/main.c:1439) [ 2.997927][ T1] ? ret_from_fork (arch/x86/kernel/process.c:153) [ 2.997927][ T1] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:312) [ 2.997927][ T1] lookup_object_or_alloc (lib/debugobjects.c:308 lib/debugobjects.c:624) [ 2.997927][ T1] __debug_object_init (lib/debugobjects.c:672) [ 2.997927][ T1] pm_runtime_init (drivers/base/power/runtime.c:1731) [ 2.997927][ T1] device_initialize (drivers/base/core.c:3102) [ 2.997927][ T1] device_register (drivers/base/core.c:3706) [ 2.997927][ T1] subsys_register (drivers/base/bus.c:1230) [ 2.997927][ T1] container_dev_init (drivers/base/container.c:39) [ 2.997927][ T1] kernel_init_freeable (init/main.c:1327 init/main.c:1547) [ 2.997927][ T1] ? wait_for_completion (kernel/sched/completion.c:149) [ 2.997927][ T1] ? rest_init (init/main.c:1429) [ 2.997927][ T1] kernel_init (init/main.c:1439) [ 2.997927][ T1] ret_from_fork (arch/x86/kernel/process.c:153) [ 2.997927][ T1] ? rest_init (init/main.c:1429) [ 2.997927][ T1] ret_from_fork_asm (arch/x86/entry/entry_64.S:312) [ 2.997927][ T1] [ 3.000434][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns [ 3.001966][ T1] futex hash table entries: 256 (order: 2, 24576 bytes, linear) The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20231109/202311091331.f2eaf4f7-oliver.sang@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki