From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.7]) (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 50F5838DF9 for ; Tue, 10 Feb 2026 07:46:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=192.198.163.7 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770709563; cv=fail; b=io5y16TT8tcTwJkneltOPv6gQIAfH+UPeElDdle0SCULcvNv+cvfQjejXoftxfxuJfGnK7hn1PQrBQlOWDL6oCT9PyKwAM+PJlv4FbvPFR/TwJXLzdpXbf+qAn0QysWC8xvCN1H7PUW1MFQyW+SaFPcTAJbV9w4yuIiXwPrzq7k= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770709563; c=relaxed/simple; bh=eHf+PQgHPRYOUqvkkGnm1yJltzmqv56luN+hn1HPEGE=; h=Date:From:To:CC:Subject:Message-ID:Content-Type: Content-Disposition:In-Reply-To:MIME-Version; b=g60MmZSxkN+KI9rfLJRKDRkrkNXwNdV0EuXHopnuKfhxV6NUGMgf6xHHwjXwKVUUM1+GsqCjHflCw+uYJUJiFMOHDfBu1zn4usHJesru2TTDgWq2bzsX9twrNB5AGvzLZTAtj8ThUDDjgPtV/t3psJec/t+mh1TLtYVL7qv6cSw= 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=OrzAsWRS; arc=fail smtp.client-ip=192.198.163.7 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="OrzAsWRS" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1770709562; x=1802245562; h=date:from:to:cc:subject:message-id:in-reply-to: mime-version; bh=eHf+PQgHPRYOUqvkkGnm1yJltzmqv56luN+hn1HPEGE=; b=OrzAsWRSPQyZNe/IncJyM7B4vjkl1ywJ8TQ8uHh7sKq/HvTPaCWQSGA+ kNIplerlnC66QxbaKcpVgR5snmpxIO1rflmAaucHIhqfRwnJXqOTGsbBA H+YBgoqdK5aV+DFg2SWQdfjSrkP6FEW1qHRGXbE9SSGn6Jc8gFssY4rBh THMguwVVOJxkL1kZEhIKhP/LnA+8Q/sq7RzLa7EiKKU1F8ZfgUMKC7tDf N0RcR2OouLQ0ArG8+lLBnRd5SgI8Vdgd92l6FK97LaLJsoO9lYZaUNhnd 3sScZorr6fAHEO9Il04kO79zRYLbI/NpOyCXbNhH5iZyBCrNsYhnplZ8x w==; X-CSE-ConnectionGUID: SVWdS+jQTDSqgCcz9c+BuA== X-CSE-MsgGUID: cnFqFFNTTZS0f/3Onh5Mug== X-IronPort-AV: E=McAfee;i="6800,10657,11696"; a="97291162" X-IronPort-AV: E=Sophos;i="6.21,283,1763452800"; d="scan'208";a="97291162" Received: from orviesa008.jf.intel.com ([10.64.159.148]) by fmvoesa101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Feb 2026 23:46:01 -0800 X-CSE-ConnectionGUID: mUV3bvr1QZqwv+2/TpVQKA== X-CSE-MsgGUID: WM6vRIfuQ4ahKL83yTGs6g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,283,1763452800"; d="scan'208";a="211873021" Received: from orsmsx902.amr.corp.intel.com ([10.22.229.24]) by orviesa008.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Feb 2026 23:46:01 -0800 Received: from ORSMSX903.amr.corp.intel.com (10.22.229.25) by ORSMSX902.amr.corp.intel.com (10.22.229.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.35; Mon, 9 Feb 2026 23:46:01 -0800 Received: from ORSEDG903.ED.cps.intel.com (10.7.248.13) by ORSMSX903.amr.corp.intel.com (10.22.229.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.35 via Frontend Transport; Mon, 9 Feb 2026 23:46:01 -0800 Received: from CO1PR03CU002.outbound.protection.outlook.com (52.101.46.42) by edgegateway.intel.com (134.134.137.113) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.35; Mon, 9 Feb 2026 23:46:01 -0800 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=XF/WAFEICxCqkCMDoUEhzfxT6qEEw/XgJEfnV8JpMlJgguM+fZkGE2tbHoYMGfUkJ9/eVMqgnYPnxRGjIjpRuSprXDYNrYOa2E3DbvAAUBsnVsANyNIz5q9ZPRLINcDwHHDxDsMsBQ6syyvh3a+XsbfTLxq4ntTKv0dobwgPE5Yvazhrh8NU8mPaFQkRQeJs86DOsCrzjt6OC3x5LLK/JgEoWyXuNkqvP/Em0brq51XI1xPt6g+Y2FVuuVEiva8XtbI/iwXP1N96/0hI2z/ygl4Qyn1AQRyIOSUoBXh5/EzHGc3v7CXzeanBsVR3jCtYY8LFXgv0pxS3IUQuYZUodw== 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=+PKw1CUYOn3X8TqQ5ZrUGeocG6sjEefht3aZQX0VRUU=; b=ZPuXy0RDrazDEnhg/heEPcA6MgN+vuBkJSNhstTv8EnT1eDzFxmZltfGSg5fK8fSbO0k+jnG6bVwBSd95jnSik1gr9Rm0NiMe6pAQ4vSwYeLB8S3NLHfYO5J1Cv+0k5mmBoK/Fs6ItJVR01vt/TE/gpeEYP7MeRE0CW3usVnE74iIYx3W1vhpYOIcA7D+SeFeiOzjdupfMkkqP9+a7Exd8IuwtwGmjMmKEl0jOLEeZUOCIxhffaOf6K0nC+K/Upxf3YZiwrhkARzC+uFuSk3MR1wyRbsEKcQnryrExFg7pGXRd072h+bSAtbKMHj3j+Z36qfdUOe6vm1XlVjbh2qgQ== 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 IA0PR11MB7815.namprd11.prod.outlook.com (2603:10b6:208:404::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9611.8; Tue, 10 Feb 2026 07:45:59 +0000 Received: from LV3PR11MB8603.namprd11.prod.outlook.com ([fe80::e4de:b1d:5557:7257]) by LV3PR11MB8603.namprd11.prod.outlook.com ([fe80::e4de:b1d:5557:7257%5]) with mapi id 15.20.9587.017; Tue, 10 Feb 2026 07:45:58 +0000 Date: Tue, 10 Feb 2026 15:45:49 +0800 From: kernel test robot To: Leo Martins CC: , , , , Subject: Re: [PATCH] btrfs: prevent COW amplification during btrfs_search_slot Message-ID: <202602101504.f113db13-lkp@intel.com> Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: X-ClientProxiedBy: SI2PR06CA0007.apcprd06.prod.outlook.com (2603:1096:4:186::9) To LV3PR11MB8603.namprd11.prod.outlook.com (2603:10b6:408:1b6::9) Precedence: bulk X-Mailing-List: linux-btrfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: LV3PR11MB8603:EE_|IA0PR11MB7815:EE_ X-MS-Office365-Filtering-Correlation-Id: 013c1a75-1aec-4bca-3aaf-08de68786de3 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|1800799024|376014|7053199007; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?07/pcQLE+eEWksUd8TtHhVV/vFPupkrxmuX4E41txOrDPkWSLvf1nHS4WWsc?= =?us-ascii?Q?n4P7HE1luUpwFcIaIfWVJ8VSBryo/Ush/0LMavZ5UTU2nURTFCYl8+FPaeNU?= =?us-ascii?Q?f55UYzqyJRoVWTrbX6WHBzyKMTacbRsVmOUURND75k4CCqPDvSPZ/Y09jsOA?= =?us-ascii?Q?yQZuQorWlTQXolZP3+6eNkTchdoLnPGlJ0O5xszx4EsjLzYVHEtuMHEyZL9K?= =?us-ascii?Q?XgeCxNO/diT50YvzWMqPUd0ESGeKjyFUjLTtUdX4jh+/+PiAKG9fBC/UeTF/?= =?us-ascii?Q?M7/6NwBZA9OzGICQxxMgeuBp/BzYGxGwUsaBhRKYeDwmBiH7bJycUmKpbz7R?= =?us-ascii?Q?eli86JvB22Q6x8c/roFXeAbH0zdzrzkFL+bAAxgy5VuZ1WInkbYQ9sA5JECx?= =?us-ascii?Q?DsIrwgUzH3am2M7S62t9yXhOgsOYp4iN5P939q05pv5Ri7Cw6l2wMSLUMFlg?= =?us-ascii?Q?BVHotViW1lQmwzVKiMzEBv0NjvJPAFNR/iB19C2F1rGS4eSyWiCDVgX+Xh4G?= =?us-ascii?Q?AVguqT5z4EX0Tqhd5tt2zRseWINgKwB3VWpQhf9tgZPonD7VRKh6qBcSh9/K?= =?us-ascii?Q?e8AQGkV++fT2mqFbwtNmcg4q1km+D+2yJWdyEJRZFRdl2o73qt9XQpNk0egk?= =?us-ascii?Q?U1GlH/dhNdLhe/c3gBe/CwlB6ycB0S+DOvfUDtZfUUwI4PjqXpsb2GLcGIuN?= =?us-ascii?Q?Ttm3QsT7zCqMSy2xH0knyCwrEnUH3AdCQ87xoDXGQ+p86HFxQzkSxxEnxNYp?= =?us-ascii?Q?eNpO4zA3tLKVFSy5pcN6wj/ku8GjYwMRxJT0bQtR18e1I6OZwnEeHo+ioKb5?= =?us-ascii?Q?tSwlFZ/NrDhrQZJ/TUfDdHDwAPDgPTcDUEuMj9neYjteC54DHfFaCO83nDJr?= =?us-ascii?Q?hTlYBsJFodcreFgA2aaEjLJtov1Ch6LAc+/u8JIKmQsR/+VxS511k3tNK0sx?= =?us-ascii?Q?aqg5q8DNWxSpFRyFiKRzyd5cTwITpnjWNTFbrKQQz7CgX76LxRezRKhCn+H+?= =?us-ascii?Q?xnIZxBwd4a3+3W6TOXkDo0oScvW3NoE/+uVEud0mebyA/pnCkk0lFk+QUxQs?= =?us-ascii?Q?lZwGp0jvPQicgCt5E6boxbr4tW9YAT0q919+OXFnaxBTuWOcXwsYHRD8p3cV?= =?us-ascii?Q?7i5Zlzg11H6dQSFRp2gna2yz4PksIcHsoymOuOm5KyFvwOK0ocjBJd9yyJk0?= =?us-ascii?Q?NbhahbSUbqYZJQSbcyaRarY9NB5Feyz4tnr8RX5RXYIkTFqpC1XDfhvKanhF?= =?us-ascii?Q?qkGrTf7mxUWxGD3nP/h2qyNCr82+l6Ch5MOvOmPsQ8k3bLYs4mwny3jkcIqw?= =?us-ascii?Q?5ci+fPJkkR81RQ1i66aO3mTqGOLMAppkY8zu5Qh/F7RLILJz0EFP8svZsu8U?= =?us-ascii?Q?VOImSTn4GxiyqPWYEovpLku2+KZrSmgpp3Au4XItAdyxesfAQrKM/O+lhN9I?= =?us-ascii?Q?Ll3JlUCzH7o/e2fZK6F0sxQ4jCuSJRdKPkgr1YUy3SRdGdtrZV8mUWFa8XQd?= =?us-ascii?Q?ozF2lYzEaoT3qNQnNDUZC9R5RCZTUnJmJInv?= 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)(366016)(1800799024)(376014)(7053199007);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?Swfi3NeMaHhCO/RN4pCztsOztVwLuhQUfn5qIgUJFvs+usZ7aKep1fh2ESWg?= =?us-ascii?Q?/bxgHDelwPATf1/TaMHG5mQuYFSI7onFcsl1Wz3PgZMSc55DuEF/8fj4RhQz?= =?us-ascii?Q?BIhHgH9jnFVeNZIp6ZXWExT5Irs+rIOxvLmPTKAiGmxgQwl0T9QY8RD5luJB?= =?us-ascii?Q?PyW1gpxK9EVBVdO8ET98vFTl51M5URz74qxQa3XCnzCOCHf8G82V57LNHPUA?= =?us-ascii?Q?CCZIhGstP4sH8F0S1DalVtpPYsU/Ul7KISwsLmfZEhh2GlLA9zR6i+jJnisU?= =?us-ascii?Q?+VZHdXuoGT+hb39NR+6pi5L03qda0aruuiLOQYAEMlxf/+mhg87ThVwqcXH8?= =?us-ascii?Q?PwTToV/DCm8Yl9sdThTLk9djv51pRLrFN/gjCt4cYEIRa5gCSyg4JGSKi/aC?= =?us-ascii?Q?kI80rtMkHoZPLoAjyqn2vVGxAk4kiB0K5o6O3rKYFWjwA5gCWZSe63ztDEX0?= =?us-ascii?Q?zo9FYNUQkNvxheMQLozgGEG4Ex6/m2MMCXQaD+xoHvkqVfO/skU62joGY3iz?= =?us-ascii?Q?S58HqkhUMhKt+GqPIjPix+V49i/Qn2gyvn404Rn16YuGm4DYgm/G0tCdFjMB?= =?us-ascii?Q?QFFv6MraAoWgSyS+jn8xoGpEkMVfFFWYy/Tw7jrg68XNeI4B8wyGnPvhLSKs?= =?us-ascii?Q?JaUHP1T9s6wOooqR1z9ViIoTAoKz8jNe+hBNYJevqb5ku0+/AY51iqbOUWA0?= =?us-ascii?Q?i2RJi/ARwrEyIArs4Jo6FAuK/CxieLo5F2LS4ywLjQ8peEFnHyKhcxiL0r8G?= =?us-ascii?Q?tmEkdMXhE+laCaw0Gwe0V/98WqvskarZC4BG9tHKk7DBjCnXnaZKQem5VyGs?= =?us-ascii?Q?WGpLQodfY9opeoMP8DQRsvAL+8F2z2wLuz2K0aTme/BKT0J4HixUplD1yQX7?= =?us-ascii?Q?Vfbe0qqXvfWGb7BCUp0aKGhare0/RsM1WpreLCJVspBKvBxTeYWT8/NfQZzY?= =?us-ascii?Q?YMkN+hQKDdng7beIiWBSu9C9k/Rh1HVw4CXkLpZ/6ju26btNqftntF4VPF5B?= =?us-ascii?Q?EJlObOYAXfGtpOfCB7ykuvq+YG/w9zqY6IBKoSDEcICn9Ko6y58iE4SekEGS?= =?us-ascii?Q?BDJECd2AvekmDcr/99vLaWz0JnJXaXp5orLblR9YpMdGJCG/Mf2Mtty87u3C?= =?us-ascii?Q?jrsApo7AuAEE5UIx7o86i7eG98YiKAkouyK4cyiiR9G/UNceHnx+d+M0vAZ3?= =?us-ascii?Q?6vZumgpqqOs8QJfoVrZWHpbjkZC9dlOtsH+X7S3MD2ZwULv31WSLRgXeSiyx?= =?us-ascii?Q?l1Bd300JEaKsDbt5bxKa26VbQ5jBU/83n88ldp8wze7K49vxW1CeZg44DtQ9?= =?us-ascii?Q?yf39vJS+h4FZyZtQePjbzWYuAgvbvYeO20+nm8o7VkRLiDQE7+rt/ZZPKPmV?= =?us-ascii?Q?aGDPymYSLPm7okwzEiRrFXNZ+srsHAq65ONvoPIfhZjnCi1yz8jKcpNAJ4oe?= =?us-ascii?Q?L+42DBtx4clTDqH9M7HYfSf3kZ1FfN7x6V4r4wC/OZlHvZRiMBfT72fYNV9o?= =?us-ascii?Q?aX6GnTnPbX2w+wdi1vKdX3kJWEmf8+PdC1x5HmYB1pvOjZCJRpZ7oHhqM39f?= =?us-ascii?Q?dbwyNiko7bQiOAKjKUDbJuE08JI+sFz9pF++Fy6WJchOsLMWzpr0cw1xI+my?= =?us-ascii?Q?x7o7l51U6hrphweJTSHY3+vfIJ3oPRF5m3Bx9YDWX5/AoW2mbBDBFuK+9Lmb?= =?us-ascii?Q?7oizD54dxham7KKHvrtycZtwLlQSjQ5gdgmRAcINhfzKzUXGILD1a1/2rbD2?= =?us-ascii?Q?mLwvYhRZHA=3D=3D?= X-MS-Exchange-CrossTenant-Network-Message-Id: 013c1a75-1aec-4bca-3aaf-08de68786de3 X-MS-Exchange-CrossTenant-AuthSource: LV3PR11MB8603.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Feb 2026 07:45:58.5552 (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: /+smDuWK0aDUbzL9SpWLR4rrurMcJe/ei/ZtBE9Y1ihDOQpRsavwx1CFI2dO4SGgOHjvygGTdZE7+U9n+nK/tg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA0PR11MB7815 X-OriginatorOrg: intel.com Hello, kernel test robot noticed "INFO:trying_to_register_non-static_key" on: commit: ba9c6f19149df060c2b7c71eaac21c394c161190 ("[PATCH] btrfs: prevent COW amplification during btrfs_search_slot") url: https://github.com/intel-lab-lkp/linux/commits/Leo-Martins/btrfs-prevent-COW-amplification-during-btrfs_search_slot/20260128-044526 base: https://git.kernel.org/cgit/linux/kernel/git/kdave/linux.git for-next patch link: https://lore.kernel.org/all/ba53d279b8bb3456f61cb8a4f15d9a4b1e618d0e.1769546089.git.loemra.dev@gmail.com/ patch subject: [PATCH] btrfs: prevent COW amplification during btrfs_search_slot in testcase: perf-sanity-tests version: with following parameters: perf_compiler: gcc group: group-01 config: x86_64-rhel-9.4-bpf compiler: gcc-14 test machine: 8 threads 1 sockets Intel(R) Core(TM) i7-7700 CPU @ 3.60GHz (Kaby Lake) with 32G memory (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/202602101504.f113db13-lkp@intel.com [ 125.965833][ T4372] INFO: trying to register non-static key. [ 125.971503][ T4372] The code is fine but needs lockdep annotation, or maybe [ 125.978465][ T4372] you didn't initialize this object before use? [ 125.984560][ T4372] turning off the locking correctness validator. [ 125.990745][ T4372] CPU: 3 UID: 0 PID: 4372 Comm: mount Tainted: G S I 6.19.0-rc7-00122-gba9c6f19149d #1 PREEMPT(full) [ 125.990755][ T4372] Tainted: [S]=CPU_OUT_OF_SPEC, [I]=FIRMWARE_WORKAROUND [ 125.990758][ T4372] Hardware name: Dell Inc. OptiPlex 7050/062KRH, BIOS 1.2.0 12/22/2016 [ 125.990761][ T4372] Call Trace: [ 125.990764][ T4372] [ 125.990767][ T4372] dump_stack_lvl (lib/dump_stack.c:122) [ 125.990777][ T4372] register_lock_class (kernel/locking/lockdep.c:985 kernel/locking/lockdep.c:1299) [ 125.990784][ T4372] ? lock_release (kernel/locking/lockdep.c:470 (discriminator 4) kernel/locking/lockdep.c:5891 (discriminator 4) kernel/locking/lockdep.c:5875 (discriminator 4)) [ 125.990790][ T4372] ? __rcu_read_unlock (kernel/rcu/tree_plugin.h:441 (discriminator 1)) [ 125.990799][ T4372] __lock_acquire (kernel/locking/lockdep.c:5113) [ 125.990809][ T4372] lock_acquire (include/linux/preempt.h:469 (discriminator 2) include/trace/events/lock.h:24 (discriminator 2) include/trace/events/lock.h:24 (discriminator 2) kernel/locking/lockdep.c:5831 (discriminator 2)) [ 125.990815][ T4372] ? xa_destroy (lib/xarray.c:2390 (discriminator 1)) [ 125.990823][ T4372] ? xa_find (include/linux/rcupdate.h:341 include/linux/rcupdate.h:897 lib/xarray.c:2202) [ 125.990830][ T4372] ? rcu_is_watching (arch/x86/include/asm/atomic.h:23 include/linux/atomic/atomic-arch-fallback.h:457 include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 125.990836][ T4372] ? lock_acquire (include/trace/events/lock.h:24 (discriminator 2) kernel/locking/lockdep.c:5831 (discriminator 2)) [ 125.990844][ T4372] _raw_spin_lock_irqsave (include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) [ 125.990851][ T4372] ? xa_destroy (lib/xarray.c:2390 (discriminator 1)) [ 125.990858][ T4372] xa_destroy (lib/xarray.c:2390 (discriminator 1)) [ 125.990865][ T4372] ? xa_find (lib/xarray.c:2204) [ 125.990872][ T4372] ? __pfx_xa_destroy (lib/xarray.c:2384) [ 125.990884][ T4372] ? unlock_up (fs/btrfs/ctree.c:1427) btrfs [ 125.991323][ T4372] btrfs_search_slot (fs/btrfs/ctree.c:2043) btrfs [ 125.991720][ T4372] ? rcu_is_watching (arch/x86/include/asm/atomic.h:23 include/linux/atomic/atomic-arch-fallback.h:457 include/linux/context_tracking.h:128 kernel/rcu/tree.c:751) [ 125.991732][ T4372] ? __pfx_btrfs_search_slot (fs/btrfs/ctree.c:2043) btrfs [ 125.992150][ T4372] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4629 (discriminator 4)) [ 125.992158][ T4372] ? ___slab_alloc (arch/x86/include/asm/irqflags.h:42 arch/x86/include/asm/irqflags.h:119 arch/x86/include/asm/irqflags.h:159 mm/slub.c:4555) [ 125.992166][ T4372] ? __pfx___mutex_lock (kernel/locking/mutex.c:775) [ 125.992173][ T4372] ? trace_preempt_on (include/trace/events/preemptirq.h:53 (discriminator 2) kernel/trace/trace_preemptirq.c:120 (discriminator 2)) [ 125.992184][ T4372] ? kmem_cache_alloc_noprof (include/trace/events/kmem.h:12 (discriminator 2) mm/slub.c:5273 (discriminator 2)) [ 125.992191][ T4372] ? btrfs_read_chunk_tree (fs/btrfs/volumes.c:7639) btrfs [ 125.992599][ T4372] btrfs_read_chunk_tree (fs/btrfs/volumes.c:7680) btrfs [ 125.993066][ T4372] ? __pfx_btrfs_read_chunk_tree (fs/btrfs/volumes.c:7627) btrfs [ 125.993473][ T4372] ? __pfx_load_super_root (fs/btrfs/disk-io.c:2617) btrfs [ 125.993868][ T4372] ? __pfx_btrfs_read_sys_array (fs/btrfs/volumes.c:7494) btrfs [ 125.994309][ T4372] ? __asan_memcpy (mm/kasan/shadow.c:105 (discriminator 1)) [ 125.994317][ T4372] ? read_extent_buffer (fs/btrfs/extent_io.c:3981) btrfs [ 125.994743][ T4372] open_ctree (fs/btrfs/disk-io.c:3481) btrfs [ 125.995173][ T4372] btrfs_fill_super.cold (fs/btrfs/super.c:981) btrfs [ 125.995570][ T4372] btrfs_get_tree_super (fs/btrfs/super.c:1945) btrfs [ 125.995959][ T4372] btrfs_get_tree_subvol (fs/btrfs/super.c:2087) btrfs [ 125.996378][ T4372] vfs_get_tree (fs/super.c:1751) [ 125.996387][ T4372] vfs_cmd_create (fs/fsopen.c:231) [ 125.996394][ T4372] __do_sys_fsconfig (fs/fsopen.c:474) [ 125.996401][ T4372] ? __pfx___do_sys_fsconfig (fs/fsopen.c:356) [ 125.996411][ T4372] ? vfs_read (include/linux/sched/xacct.h:24 fs/read_write.c:579) [ 125.996417][ T4372] ? do_syscall_64 (arch/x86/include/asm/irqflags.h:42 arch/x86/include/asm/irqflags.h:119 include/linux/entry-common.h:108 arch/x86/entry/syscall_64.c:90) [ 125.996425][ T4372] do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1)) [ 125.996431][ T4372] ? kasan_quarantine_put (arch/x86/include/asm/irqflags.h:42 arch/x86/include/asm/irqflags.h:119 arch/x86/include/asm/irqflags.h:159 mm/kasan/quarantine.c:234) [ 125.996438][ T4372] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4629 (discriminator 4)) [ 125.996446][ T4372] ? kasan_quarantine_put (arch/x86/include/asm/irqflags.h:42 arch/x86/include/asm/irqflags.h:119 arch/x86/include/asm/irqflags.h:159 mm/kasan/quarantine.c:234) [ 125.996453][ T4372] ? kfree (mm/slub.c:6674 (discriminator 3) mm/slub.c:6882 (discriminator 3)) [ 125.996459][ T4372] ? __do_sys_fsconfig (fs/fsopen.c:499) [ 125.996467][ T4372] ? ksys_read (fs/read_write.c:715) [ 125.996473][ T4372] ? __pfx_ksys_read (fs/read_write.c:705) [ 125.996479][ T4372] ? __do_sys_fsconfig (fs/fsopen.c:499) [ 125.996486][ T4372] ? __pfx___do_sys_fsconfig (fs/fsopen.c:356) [ 125.996492][ T4372] ? do_syscall_64 (include/linux/irq-entry-common.h:298 include/linux/entry-common.h:196 arch/x86/entry/syscall_64.c:100) [ 125.996499][ T4372] ? do_syscall_64 (arch/x86/entry/syscall_64.c:113) [ 125.996505][ T4372] ? __pfx_css_rstat_updated (kernel/cgroup/rstat.c:71) [ 125.996512][ T4372] ? do_syscall_64 (include/linux/irq-entry-common.h:298 include/linux/entry-common.h:196 arch/x86/entry/syscall_64.c:100) [ 125.996520][ T4372] ? do_syscall_64 (arch/x86/entry/syscall_64.c:113) [ 125.996525][ T4372] ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1)) [ 125.996531][ T4372] ? count_memcg_events_mm+0x91/0x170 [ 125.996539][ T4372] ? count_memcg_events_mm+0x91/0x170 [ 125.996545][ T4372] ? __lock_release+0x5d/0x1b0 [ 125.996553][ T4372] ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1)) [ 125.996559][ T4372] ? exc_page_fault (arch/x86/include/asm/irqflags.h:26 arch/x86/include/asm/irqflags.h:109 arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1480 arch/x86/mm/fault.c:1527) [ 125.996567][ T4372] ? exc_page_fault (arch/x86/include/asm/irqflags.h:26 arch/x86/include/asm/irqflags.h:109 arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1480 arch/x86/mm/fault.c:1527) [ 125.996573][ T4372] ? __lock_release+0x5d/0x1b0 [ 125.996578][ T4372] ? handle_mm_fault (mm/memory.c:6469 (discriminator 1) mm/memory.c:6609 (discriminator 1)) [ 125.996587][ T4372] ? lock_release (kernel/locking/lockdep.c:470 (discriminator 4) kernel/locking/lockdep.c:5891 (discriminator 4) kernel/locking/lockdep.c:5875 (discriminator 4)) [ 125.996594][ T4372] ? irqentry_exit (include/linux/irq-entry-common.h:298 include/linux/irq-entry-common.h:341 kernel/entry/common.c:196) [ 125.996600][ T4372] ? trace_hardirqs_on_prepare (kernel/trace/trace_preemptirq.c:64 (discriminator 4) kernel/trace/trace_preemptirq.c:59 (discriminator 4)) [ 125.996605][ T4372] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4629 (discriminator 4)) [ 125.996612][ T4372] ? irqentry_exit (arch/x86/include/asm/jump_label.h:37 include/linux/context_tracking_state.h:138 include/linux/context_tracking.h:41 include/linux/irq-entry-common.h:301 include/linux/irq-entry-common.h:341 kernel/entry/common.c:196) [ 125.996619][ T4372] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:131) [ 125.996625][ T4372] RIP: 0033:0x7f169cce04aa [ 125.996652][ T4372] Code: 73 01 c3 48 8b 0d 4e 59 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 af 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 1e 59 0d 00 f7 d8 64 89 01 48 All code ======== 0: 73 01 jae 0x3 2: c3 ret 3: 48 8b 0d 4e 59 0d 00 mov 0xd594e(%rip),%rcx # 0xd5958 a: f7 d8 neg %eax c: 64 89 01 mov %eax,%fs:(%rcx) f: 48 83 c8 ff or $0xffffffffffffffff,%rax 13: c3 ret 14: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 1b: 00 00 00 1e: 66 90 xchg %ax,%ax 20: 49 89 ca mov %rcx,%r10 23: b8 af 01 00 00 mov $0x1af,%eax 28: 0f 05 syscall 2a:* 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 30: 73 01 jae 0x33 32: c3 ret 33: 48 8b 0d 1e 59 0d 00 mov 0xd591e(%rip),%rcx # 0xd5958 3a: f7 d8 neg %eax 3c: 64 89 01 mov %eax,%fs:(%rcx) 3f: 48 rex.W Code starting with the faulting instruction =========================================== 0: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax 6: 73 01 jae 0x9 8: c3 ret 9: 48 8b 0d 1e 59 0d 00 mov 0xd591e(%rip),%rcx # 0xd592e 10: f7 d8 neg %eax 12: 64 89 01 mov %eax,%fs:(%rcx) 15: 48 rex.W The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20260210/202602101504.f113db13-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki