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 8130523717F for ; Thu, 6 Nov 2025 08:50:20 +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=1762419022; cv=fail; b=WvxEk9W97CC0aGLtO6SnFRbbKCYIYVDGFeQj7KRUUGJrvGKdhkqvaAtY4BDNfXsH3E9ByRs5pLjauP3Lf15VPVl3SsVMk1uegHG6H0eSUxhdauerB5tj3cbL4loS9hO+EOL5VzgEGP9Acp5UPUGMeAysal8qoH4mowEv3KsxkPA= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762419022; c=relaxed/simple; bh=AEnceojq/5wRw5wPgndwV18wnAkT8aCxJ/vAFa0XLyE=; h=Date:From:To:CC:Subject:Message-ID:Content-Type: Content-Disposition:In-Reply-To:MIME-Version; b=VrhSXgkbZl/30JzxQNk5nSaazUykOKseQX6qNGsP7T9ooYmhE5sKY5eg0pwo0MX2r1W+1SsVoHQDIvSp0Du9SF2xoNaAVSTekv4oiEpkS/Qm/e8/8QrQJciuAgUHbnnhgr5sLd2HbZ3VmcqPpqWhtx2+nh47A8nLnDgme+CG25g= 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=K+V99N6n; 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="K+V99N6n" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1762419021; x=1793955021; h=date:from:to:cc:subject:message-id:in-reply-to: mime-version; bh=AEnceojq/5wRw5wPgndwV18wnAkT8aCxJ/vAFa0XLyE=; b=K+V99N6nvmFWQCp3sKYidIuIdrBiSDdwJjc+uCP9nMldkbpG6/91YbV/ P8mtb4ImpdauoADn2EKXlg9XmNOvXMT/InQywoDJaMPferM3ymtumJfFc rxKfEFSHm350R7DHQ05RwL46nq63w+9AdeI6p8X62ZtVG++Oe6e0jA5/X /Zz+Q5oRSGat/hBmdgbX42N9IwRECSKf40u4q2iind0M6FXmZhkqTbuyf jayRVhTqTWfq4CiDoj1JIylZjRtgz0UoB1TiWAzo5KsxmcwWknMSD+Quz 8IhyXC49JMYLHn/4IXlbo8xW/M4YDDCwOX+00sPOI68b1rb2iD95+O6cE w==; X-CSE-ConnectionGUID: oGhrumxCSGe3wgLVhpJBoA== X-CSE-MsgGUID: oq1VO4DdQiaKLK4LqkLvNg== X-IronPort-AV: E=McAfee;i="6800,10657,11604"; a="64700812" X-IronPort-AV: E=Sophos;i="6.19,284,1754982000"; d="scan'208";a="64700812" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by orvoesa108.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Nov 2025 00:50:21 -0800 X-CSE-ConnectionGUID: 6xgpq1zTRYubHfV0UqhTeg== X-CSE-MsgGUID: k+MsWjalRju5hmgZMc6Ghw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.19,284,1754982000"; d="scan'208";a="192874907" Received: from orsmsx902.amr.corp.intel.com ([10.22.229.24]) by orviesa005.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Nov 2025 00:50:20 -0800 Received: from ORSMSX902.amr.corp.intel.com (10.22.229.24) 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 15.2.2562.27; Thu, 6 Nov 2025 00:50:19 -0800 Received: from ORSEDG903.ED.cps.intel.com (10.7.248.13) 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 15.2.2562.27 via Frontend Transport; Thu, 6 Nov 2025 00:50:19 -0800 Received: from PH8PR06CU001.outbound.protection.outlook.com (40.107.209.25) 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 15.2.2562.27; Thu, 6 Nov 2025 00:50:19 -0800 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=mofho0f3R5LNwrEtj43X0lDYvpi0qlKi1vj/uQBqfquvd5b+0OEc6opSU1LeOtzm+IMsadECJf151ykfjihSqaujduVZtSxViuruNP8LY6B3XLU3bf8HFy3ZRgvTZDhgOIIwkyXHHpea4L/goSrpG851AR4zRcmOSy+R5It/JbRLkQ7ar+4QM4vPmN71y7gexXlSc3K3H2v3suBQEfqGjW+jD+J1dWqlS5PMcRjftsCEO6Fh/opOgjEwNfx/5CkeYMWP7fTj1ckUMLzdhZw95n6quMQyr+U8dO85mjPeJ96kSCD+TZRJDYImvkSAtAq6FuUbQZLsZaydduLk1J/mLQ== 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=Dz/yEiHFNV5HCvWGuTVsVCh1a0xRUIP1xU/iXcbmQMw=; b=kNOjs70nvKm9umOPw9yt4J1CAGVCFuYjf5sYAiv+iepMw4pw1BF3X59a8VsV2COLoAk/D7EtDKMSmICQ6Gn/p3BOdSp8rDPjCAqXgTW4LLPUMUlXWYzpKjt/E1Q5WldPPENwQeWIysqGyZaXYXLpfaQ5MXHOZsM1BCkdEYakUTZIgV73LE25dSRkXMf10FkhU6xax+Ly7S7p9tV+y9WJ5Ql5bPBdpMl+l17TemdEYeUVidlzf8hmTUJu6LO3865WMItyGJb0pu/Loeg0XN3/mmNf9TsRnHEA767qN7gSDPNyWX30M37qanjHNHULF2F7e6iwfGprxpd6AExIqi0SQA== 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 DM4PR11MB5996.namprd11.prod.outlook.com (2603:10b6:8:5f::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9298.8; Thu, 6 Nov 2025 08:50:16 +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 15.20.9298.010; Thu, 6 Nov 2025 08:50:16 +0000 Date: Thu, 6 Nov 2025 16:50:06 +0800 From: kernel test robot To: Kuniyuki Iwashima CC: , , , Shuah Khan , "Kuniyuki Iwashima" , Kuniyuki Iwashima , Subject: Re: [PATCH v2] selftests: harness: Support KCOV. Message-ID: <202511061615.3c5824f3-lkp@intel.com> Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20251028024339.2028774-1-kuniyu@google.com> X-ClientProxiedBy: SI2PR02CA0044.apcprd02.prod.outlook.com (2603:1096:4:196::17) To SJ2PR11MB8587.namprd11.prod.outlook.com (2603:10b6:a03:568::21) Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: LV3PR11MB8603:EE_|DM4PR11MB5996:EE_ X-MS-Office365-Filtering-Correlation-Id: 40c54a0a-c06c-4bf1-27c3-08de1d11802f X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|366016|1800799024|7053199007; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?dCq1BFXCJY5J4fK5PRE2ysESy9Y8hLD6Ys3anLV/+C69piSNN2i3tuv5pdj6?= =?us-ascii?Q?Fqga41YVZOOFDM7tidEl8PVA/+0AlYbRoIwRTGBwYprPEbUGOHKF9AzE4vuP?= =?us-ascii?Q?LY+epolMwpkdFBeWxVQxqOMrFkNRbSZziM2hfu1kNrE6zdwOQe4YqG6K4nsQ?= =?us-ascii?Q?8TG3nOWFuyH4L4uGCZhx69N7UrCCzqysY7+r2EOMb+qelpwgog3zYRkBxq/g?= =?us-ascii?Q?raeSTr/rSqNtRtqN4QabMF6c13F0P3PfuxmsN23ohxkoelaeW/0Mxp0Y0mIx?= =?us-ascii?Q?oiTitOJ2wVSC7xxAaHylolUhpwsG9TW6NMIcO8Ug8bBlP3Y6gzOzqWJR4Vmp?= =?us-ascii?Q?L1gmGGwRjsTc1sABdmUhjqMZXCxG/N811suDBU2mc9EBa5UeZYCZfTI6MoIn?= =?us-ascii?Q?21x/47OKnlEf70P8gtlBVF+KLUVxx3GTwSw3pLMBDxoydbG26dnAThmyAHVk?= =?us-ascii?Q?gpLnHaU1hZFKOKuJNSqbGcT60RGYKfoTKQmPs3tGt84k08gTqQner2E4dioY?= =?us-ascii?Q?IXbLd4t78q/GLZwvYCZySXBDW1QqjqYCGRvfnvh7DCHWOFG26tJ1u00CiG6J?= =?us-ascii?Q?7w/brQqYp0nQM57OxCcaLh6QiLU3GomTAoeHlsbJh5vc9P4y8QDsPMPu6B7i?= =?us-ascii?Q?ANzkVhjrlMi1D4xvPnkgdpHqehD4vG0zti7x5mLLLRGuKwJa1q83z88lCrgo?= =?us-ascii?Q?0nkF8EPNRmRFzdoJ0gjM+zRcq2re5Y7K3B0haiZcdsCq5X0hDdhzL2fB2nYE?= =?us-ascii?Q?R+qwAoYny6QhtxrDQs40McN0eg1Mlrh76RTiTTyUkwW4TEShoY0VqT3B6vBh?= =?us-ascii?Q?hUzA3F2/MtYSww6AsvCHslx30SwYrbI0XCGeXcN0TnholcNIyQxqd41MTHnh?= =?us-ascii?Q?icDQVhiNSh49LnJEbmz1yqYC1U6XPY4vUlg9Y0+nQcXEV0Ae/0fywj220diR?= =?us-ascii?Q?j8xnwkdE+rDbow4Ezy3kqM3QpPva4qogLzikO13BxVtrPT5kmW2yNEp0vlTj?= =?us-ascii?Q?7AWZO+PNywbTXOWBnNMbiV6KbXcO2yyWFfnYjwiloHoP5LaYenrny7Pj9cL5?= =?us-ascii?Q?LvhFlP9DjuiA26wY0Drl02YfQTkjw6cnwo8p1P61M5W2l6LzKmB/RBr0KOpB?= =?us-ascii?Q?qNE6mCJfNmJnMaj81jkCFtL2zl9KAyazFdCCQHnA87LckeD9/jfFEkjDTD6R?= =?us-ascii?Q?BQs+W1COKpoH3q8NOmhRwYrjZ1Dp2HJk53JFS33b8DhdexC2H+Khg1LhOHxQ?= =?us-ascii?Q?/8uLIJd1MeMPKOxJhcfnomLMcMkWOoAm0vbTSwq1Kht004Dfj2aWCWwfQwLV?= =?us-ascii?Q?0Qwc7ECs46beD2sq0vnlcOqvvjRTjDYBpth6H6lVi4kgJhO7yYYjFdLpD27K?= =?us-ascii?Q?6z/aEJsClHZ3OKSQHAqwlf2zcncZ6CA941BktrmXNBLCy/VyA8C0WntoYy4o?= =?us-ascii?Q?IGvoYlujfykw8Icn2a9eI25wYjMzRV23PzqXrEpLuCeT1QQvOJ1bcA=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)(366016)(1800799024)(7053199007);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?XIR/vxB2ydZKFHsdSrdMLKhf+d4mrKXPP8bLyMlSapQ2kTEmFgn5/SsQ97Xp?= =?us-ascii?Q?a+Lfg+5sXSwB7wxlqucCpz/+dQk4XDDI9dUdPMrMTzJvNYotWYL5kH2MmWvs?= =?us-ascii?Q?3Q7OY7+7C4Ib0T07PmjNhQPbqwYlkkV0Cu4r573k1+bnuMQC0mr/vkAgfi9g?= =?us-ascii?Q?Ia0d9rwdtWQPZRr+wsS381O1oYo9b8gMSuuKCiF22/GhdzFK6YvreiMsx6Cr?= =?us-ascii?Q?2cFXPjy80eoh2KYb0CoIK+DCss+E/RB1NwFP8m2TrY51KVx6necoT4IPgUQk?= =?us-ascii?Q?v7+qrfcz4gcFhByxn51RK0L7qSzIeu9ShOSzYvtHjRKd5hqb6gfSRhIrMi5z?= =?us-ascii?Q?B49sLizIBSonXi0lWgnGZyQKxNV8CQ6bHhJRKMdva9pYb0H3ePqvqBe3jtnl?= =?us-ascii?Q?1VG6wvCQmo53s5fuhYltgWDVZi7srl3wCEem808rkpC0ZuhHD5xUK3EddDcS?= =?us-ascii?Q?50cAXl/x8RXm8zzpFiWdU0yKv/rtnkxLbo6fwkod2Q7XkB50bHP2F8BETwj5?= =?us-ascii?Q?4eUGIkmX+N0uloRa9WZONrh24jwPhb1kpKSDKL3I3JzgONO2V+IeE8nnbslm?= =?us-ascii?Q?RGILsNre9y2xNA+sM/Q5HFk9kDSbAUmLShym32THZCr85Wxp0QSnq2G9cXXo?= =?us-ascii?Q?Jss1AoSgMo2KbP1dy1OgOak7IhKKdEdZ7Ou7urDi0xooh7ACaiZ4dWlmtK1y?= =?us-ascii?Q?xgaHeRP9Eqepiipf+PiXvOuhD+71k45QKUshJeHPSLTf0jrl4tt/YjVGJVy/?= =?us-ascii?Q?FNWKpH0RJ2Q+srsz9pNspnlb7vRpl5kvu6IW368Z472L2U/B1gQ2QQimM2Kd?= =?us-ascii?Q?73n2YgZ0Zh9P9/L0eoTniCkokciQrkLLdncOc4y81jvhcvqMdFkNvJBL7wDU?= =?us-ascii?Q?/ewctIxSiCcVBX7fCmBcPZxrHAwaCt36o3JjCHx/oPeqkyXBDIBI8GUb1hnh?= =?us-ascii?Q?sdHjlUSjIw+UErKdueE9tTg8yw45Iw86jMv0Q81i5klJOzLnVB0qTLRTNSiI?= =?us-ascii?Q?3hdQUEzpYlhy2Zhxdt0KADj8prQ97JuWhCCnGnepRI+MgUiA0pyzAEso5L/9?= =?us-ascii?Q?zQBvsl9kG/WclR3Edno2SqClgJssj2CZ69WFxkVdmun4/8raYfFaY+SFl948?= =?us-ascii?Q?MLAwd2q89HJNMrU/t5pas2MxxSe6VMUHuasg9eAk0DRW0JPStAKtvmc+pfg5?= =?us-ascii?Q?bH1HMkl/dmTNGrRrsOXBGaI9DbKtsD6gFr4pIgYt16fRZxgElxO1Vb1onjF3?= =?us-ascii?Q?eHzVNfrN41Sol7nFwY17TeqAVyduebTGq/wKdL4UGTcqp3VYXnwOnK7RzC2P?= =?us-ascii?Q?Nl/jFVmT9faalfP+gHE7ylS7O7BersbFfrHrnix0E2/iq4S1OlShOa4nlDya?= =?us-ascii?Q?b1R41dMlXnT/9eLiOlCKT6aQkUHAleKJ7313p4RLZUSwTSyCoBzBzLDeDJ/k?= =?us-ascii?Q?bWV3iNgk5p2cqtalfWzjs44hICbxQtec91n19lgDqVyxeDN47zXzh3o1HjEM?= =?us-ascii?Q?yNgD29eIDaCIAxfDWpoS9WgvElknqcvAh3YfbjgpkzIwkVcGQCAaxob+hXdD?= =?us-ascii?Q?lV93x7iVn00dNVZffJOkShtIeSp1gcoo4s7aPyRKHwwErpmRUoWx+xWs0xAz?= =?us-ascii?Q?/Q=3D=3D?= X-MS-Exchange-CrossTenant-Network-Message-Id: 40c54a0a-c06c-4bf1-27c3-08de1d11802f X-MS-Exchange-CrossTenant-AuthSource: SJ2PR11MB8587.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Nov 2025 08:50:16.4792 (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: dY86FO9KjaBiJO1MgnAagCp+duda4mmj8gXGkVy0gp5pUbcglaBjQydloBrRaEUdLnKzrqHg2xzSRQunSdkxjg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM4PR11MB5996 X-OriginatorOrg: intel.com Hello, kernel test robot noticed "segfault_at_ip_sp_error" on: commit: c849d8e404a7b145b33c184042234e903ce72c7c ("[PATCH v2] selftests: harness: Support KCOV.") url: https://github.com/intel-lab-lkp/linux/commits/Kuniyuki-Iwashima/selftests-harness-Support-KCOV/20251028-104538 base: https://git.kernel.org/cgit/linux/kernel/git/shuah/linux-kselftest.git next patch link: https://lore.kernel.org/all/20251028024339.2028774-1-kuniyu@google.com/ patch subject: [PATCH v2] selftests: harness: Support KCOV. in testcase: kernel-selftests version: kernel-selftests-x86_64-8bb886cb8f3a-1_20251104 with following parameters: group: syscall_user_dispatch config: x86_64-rhel-9.4-kselftests compiler: gcc-14 test machine: 36 threads 1 sockets Intel(R) Core(TM) i9-9980XE CPU @ 3.00GHz (Skylake) 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/202511061615.3c5824f3-lkp@intel.com kern :info : [ 72.507647] [ T2520] sud_test[2520]: segfault at 0 ip 0000558da6f1242c sp 00007fffd6f2faf0 error 4 in sud_test[342c,558da6f11000+5000] likely on CPU 23 (core 8, socket 0) kern :info : [ 72.508965] [ T2520] Code: 48 89 e5 48 83 ec 70 48 89 7d 98 48 89 75 90 48 8b 45 98 8b 40 70 83 f8 ff 0f 84 36 02 00 00 48 8b 45 98 48 8b 80 80 00 00 00 <48> 8b 00 89 45 f4 48 8b 45 98 8b 40 74 83 e8 01 39 45 f4 75 1d 48 All code ======== 0: 48 89 e5 mov %rsp,%rbp 3: 48 83 ec 70 sub $0x70,%rsp 7: 48 89 7d 98 mov %rdi,-0x68(%rbp) b: 48 89 75 90 mov %rsi,-0x70(%rbp) f: 48 8b 45 98 mov -0x68(%rbp),%rax 13: 8b 40 70 mov 0x70(%rax),%eax 16: 83 f8 ff cmp $0xffffffff,%eax 19: 0f 84 36 02 00 00 je 0x255 1f: 48 8b 45 98 mov -0x68(%rbp),%rax 23: 48 8b 80 80 00 00 00 mov 0x80(%rax),%rax 2a:* 48 8b 00 mov (%rax),%rax <-- trapping instruction 2d: 89 45 f4 mov %eax,-0xc(%rbp) 30: 48 8b 45 98 mov -0x68(%rbp),%rax 34: 8b 40 74 mov 0x74(%rax),%eax 37: 83 e8 01 sub $0x1,%eax 3a: 39 45 f4 cmp %eax,-0xc(%rbp) 3d: 75 1d jne 0x5c 3f: 48 rex.W Code starting with the faulting instruction =========================================== 0: 48 8b 00 mov (%rax),%rax 3: 89 45 f4 mov %eax,-0xc(%rbp) 6: 48 8b 45 98 mov -0x68(%rbp),%rax a: 8b 40 74 mov 0x74(%rax),%eax d: 83 e8 01 sub $0x1,%eax 10: 39 45 f4 cmp %eax,-0xc(%rbp) 13: 75 1d jne 0x32 15: 48 rex.W kern :info : [ 72.511780] [ T2521] sud_test[2521]: segfault at 0 ip 0000558da6f1242c sp 00007fffd6f2faf0 error 4 in sud_test[342c,558da6f11000+5000] likely on CPU 23 (core 8, socket 0) kern :info : [ 72.513080] [ T2521] Code: 48 89 e5 48 83 ec 70 48 89 7d 98 48 89 75 90 48 8b 45 98 8b 40 70 83 f8 ff 0f 84 36 02 00 00 48 8b 45 98 48 8b 80 80 00 00 00 <48> 8b 00 89 45 f4 48 8b 45 98 8b 40 74 83 e8 01 39 45 f4 75 1d 48 All code ======== 0: 48 89 e5 mov %rsp,%rbp 3: 48 83 ec 70 sub $0x70,%rsp 7: 48 89 7d 98 mov %rdi,-0x68(%rbp) b: 48 89 75 90 mov %rsi,-0x70(%rbp) f: 48 8b 45 98 mov -0x68(%rbp),%rax 13: 8b 40 70 mov 0x70(%rax),%eax 16: 83 f8 ff cmp $0xffffffff,%eax 19: 0f 84 36 02 00 00 je 0x255 1f: 48 8b 45 98 mov -0x68(%rbp),%rax 23: 48 8b 80 80 00 00 00 mov 0x80(%rax),%rax 2a:* 48 8b 00 mov (%rax),%rax <-- trapping instruction 2d: 89 45 f4 mov %eax,-0xc(%rbp) 30: 48 8b 45 98 mov -0x68(%rbp),%rax 34: 8b 40 74 mov 0x74(%rax),%eax 37: 83 e8 01 sub $0x1,%eax 3a: 39 45 f4 cmp %eax,-0xc(%rbp) 3d: 75 1d jne 0x5c 3f: 48 rex.W Code starting with the faulting instruction =========================================== 0: 48 8b 00 mov (%rax),%rax 3: 89 45 f4 mov %eax,-0xc(%rbp) 6: 48 8b 45 98 mov -0x68(%rbp),%rax a: 8b 40 74 mov 0x74(%rax),%eax d: 83 e8 01 sub $0x1,%eax 10: 39 45 f4 cmp %eax,-0xc(%rbp) 13: 75 1d jne 0x32 15: 48 rex.W user :notice: [ 72.516773] [ T622] update-alternatives: warning: skip creation of /usr/share/man/man1/traceroute6.1.gz because associated file /usr/share/man/man1/traceroute6.db.1.gz (of link group traceroute6) doesn't exist kern :info : [ 72.517057] [ T2523] sud_test[2523]: segfault at 0 ip 0000558da6f1242c sp 00007fffd6f2faf0 error 4 in sud_test[342c,558da6f11000+5000] likely on CPU 27 (core 16, socket 0) kern :info : [ 72.519874] [ T2523] Code: 48 89 e5 48 83 ec 70 48 89 7d 98 48 89 75 90 48 8b 45 98 8b 40 70 83 f8 ff 0f 84 36 02 00 00 48 8b 45 98 48 8b 80 80 00 00 00 <48> 8b 00 89 45 f4 48 8b 45 98 8b 40 74 83 e8 01 39 45 f4 75 1d 48 All code ======== 0: 48 89 e5 mov %rsp,%rbp 3: 48 83 ec 70 sub $0x70,%rsp 7: 48 89 7d 98 mov %rdi,-0x68(%rbp) b: 48 89 75 90 mov %rsi,-0x70(%rbp) f: 48 8b 45 98 mov -0x68(%rbp),%rax 13: 8b 40 70 mov 0x70(%rax),%eax 16: 83 f8 ff cmp $0xffffffff,%eax 19: 0f 84 36 02 00 00 je 0x255 1f: 48 8b 45 98 mov -0x68(%rbp),%rax 23: 48 8b 80 80 00 00 00 mov 0x80(%rax),%rax 2a:* 48 8b 00 mov (%rax),%rax <-- trapping instruction 2d: 89 45 f4 mov %eax,-0xc(%rbp) 30: 48 8b 45 98 mov -0x68(%rbp),%rax 34: 8b 40 74 mov 0x74(%rax),%eax 37: 83 e8 01 sub $0x1,%eax 3a: 39 45 f4 cmp %eax,-0xc(%rbp) 3d: 75 1d jne 0x5c 3f: 48 rex.W Code starting with the faulting instruction =========================================== 0: 48 8b 00 mov (%rax),%rax 3: 89 45 f4 mov %eax,-0xc(%rbp) 6: 48 8b 45 98 mov -0x68(%rbp),%rax a: 8b 40 74 mov 0x74(%rax),%eax d: 83 e8 01 sub $0x1,%eax 10: 39 45 f4 cmp %eax,-0xc(%rbp) 13: 75 1d jne 0x32 15: 48 rex.W user :notice: [ 72.521352] [ T622] update-alternatives: warning: skip creation of /usr/share/man/man1/lft.1.gz because associated file /usr/share/man/man1/lft.db.1.gz (of link group lft) doesn't exist kern :info : [ 72.522679] [ T2524] sud_test[2524]: segfault at 0 ip 0000558da6f1242c sp 00007fffd6f2faf0 error 4 in sud_test[342c,558da6f11000+5000] likely on CPU 23 (core 8, socket 0) kern :info : [ 72.524467] [ T2524] Code: 48 89 e5 48 83 ec 70 48 89 7d 98 48 89 75 90 48 8b 45 98 8b 40 70 83 f8 ff 0f 84 36 02 00 00 48 8b 45 98 48 8b 80 80 00 00 00 <48> 8b 00 89 45 f4 48 8b 45 98 8b 40 74 83 e8 01 39 45 f4 75 1d 48 All code ======== 0: 48 89 e5 mov %rsp,%rbp 3: 48 83 ec 70 sub $0x70,%rsp 7: 48 89 7d 98 mov %rdi,-0x68(%rbp) b: 48 89 75 90 mov %rsi,-0x70(%rbp) f: 48 8b 45 98 mov -0x68(%rbp),%rax 13: 8b 40 70 mov 0x70(%rax),%eax 16: 83 f8 ff cmp $0xffffffff,%eax 19: 0f 84 36 02 00 00 je 0x255 1f: 48 8b 45 98 mov -0x68(%rbp),%rax 23: 48 8b 80 80 00 00 00 mov 0x80(%rax),%rax 2a:* 48 8b 00 mov (%rax),%rax <-- trapping instruction 2d: 89 45 f4 mov %eax,-0xc(%rbp) 30: 48 8b 45 98 mov -0x68(%rbp),%rax 34: 8b 40 74 mov 0x74(%rax),%eax 37: 83 e8 01 sub $0x1,%eax 3a: 39 45 f4 cmp %eax,-0xc(%rbp) 3d: 75 1d jne 0x5c 3f: 48 rex.W Code starting with the faulting instruction =========================================== 0: 48 8b 00 mov (%rax),%rax 3: 89 45 f4 mov %eax,-0xc(%rbp) 6: 48 8b 45 98 mov -0x68(%rbp),%rax a: 8b 40 74 mov 0x74(%rax),%eax d: 83 e8 01 sub $0x1,%eax 10: 39 45 f4 cmp %eax,-0xc(%rbp) 13: 75 1d jne 0x32 15: 48 rex.W user :notice: [ 72.526246] [ T622] update-alternatives: warning: skip creation of /usr/share/man/man1/traceproto.1.gz because associated file /usr/share/man/man1/traceproto.db.1.gz (of link group traceproto) doesn't exist kern :info : [ 72.529475] [ T2525] sud_test[2525]: segfault at 0 ip 0000558da6f1242c sp 00007fffd6f2faf0 error 4 in sud_test[342c,558da6f11000+5000] likely on CPU 16 (core 26, socket 0) kern :info : [ 72.530789] [ T2525] Code: 48 89 e5 48 83 ec 70 48 89 7d 98 48 89 75 90 48 8b 45 98 8b 40 70 83 f8 ff 0f 84 36 02 00 00 48 8b 45 98 48 8b 80 80 00 00 00 <48> 8b 00 89 45 f4 48 8b 45 98 8b 40 74 83 e8 01 39 45 f4 75 1d 48 All code ======== 0: 48 89 e5 mov %rsp,%rbp 3: 48 83 ec 70 sub $0x70,%rsp 7: 48 89 7d 98 mov %rdi,-0x68(%rbp) b: 48 89 75 90 mov %rsi,-0x70(%rbp) f: 48 8b 45 98 mov -0x68(%rbp),%rax 13: 8b 40 70 mov 0x70(%rax),%eax 16: 83 f8 ff cmp $0xffffffff,%eax 19: 0f 84 36 02 00 00 je 0x255 1f: 48 8b 45 98 mov -0x68(%rbp),%rax 23: 48 8b 80 80 00 00 00 mov 0x80(%rax),%rax 2a:* 48 8b 00 mov (%rax),%rax <-- trapping instruction 2d: 89 45 f4 mov %eax,-0xc(%rbp) 30: 48 8b 45 98 mov -0x68(%rbp),%rax 34: 8b 40 74 mov 0x74(%rax),%eax 37: 83 e8 01 sub $0x1,%eax 3a: 39 45 f4 cmp %eax,-0xc(%rbp) 3d: 75 1d jne 0x5c 3f: 48 rex.W Code starting with the faulting instruction =========================================== 0: 48 8b 00 mov (%rax),%rax 3: 89 45 f4 mov %eax,-0xc(%rbp) 6: 48 8b 45 98 mov -0x68(%rbp),%rax a: 8b 40 74 mov 0x74(%rax),%eax d: 83 e8 01 sub $0x1,%eax 10: 39 45 f4 cmp %eax,-0xc(%rbp) 13: 75 1d jne 0x32 15: 48 rex.W The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20251106/202511061615.3c5824f3-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki