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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 199E2C6FA8F for ; Thu, 31 Aug 2023 02:26:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240072AbjHaC07 (ORCPT ); Wed, 30 Aug 2023 22:26:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53076 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234922AbjHaC06 (ORCPT ); Wed, 30 Aug 2023 22:26:58 -0400 Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.65]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 29A6A1BF; Wed, 30 Aug 2023 19:26:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1693448812; x=1724984812; h=date:from:to:cc:subject:message-id:mime-version; bh=0HFXW+aQXS3/SAm+A0MJedsea9Gtejtv5bN8vQeixLA=; b=J2uro+l0VOYFbRoGUddUd1vBDY4zhHIUXG71cMicBwlyv4KjW0buwTwb T+FuNOJJVMeWYkFwYt57r8Vb4MGUOjLZ9pCZaCHCwFmmSlb2EfE46AqCl +DdO/JHyt4jYja8fW1zq+x8gTc9Cvq/uq/Pva8goePZ4QtoaOUOxMFwdS MPHmXw1b5cC/hWtg1PIVfRdlOX+3jeqkdkfEnIY4IKh/0JsuddIl/GgBV RvLy9xGjdzrirbRaf4tY/o5KMilOX2yA2cz7npz70hnKgYJ9/gk4uel5v xd+Fb1B2paJOfLyAsVeF2NF6jQwUqHFlRoJzdrRPoNWPtw4GJPaQ8WikL Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10818"; a="379544763" X-IronPort-AV: E=Sophos;i="6.02,215,1688454000"; d="scan'208";a="379544763" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Aug 2023 19:26:51 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10818"; a="768627620" X-IronPort-AV: E=Sophos;i="6.02,215,1688454000"; d="scan'208";a="768627620" Received: from orsmsx603.amr.corp.intel.com ([10.22.229.16]) by orsmga008.jf.intel.com with ESMTP; 30 Aug 2023 19:26:51 -0700 Received: from orsmsx603.amr.corp.intel.com (10.22.229.16) by ORSMSX603.amr.corp.intel.com (10.22.229.16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27; Wed, 30 Aug 2023 19:26:51 -0700 Received: from ORSEDG602.ED.cps.intel.com (10.7.248.7) by orsmsx603.amr.corp.intel.com (10.22.229.16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27 via Frontend Transport; Wed, 30 Aug 2023 19:26:50 -0700 Received: from NAM11-BN8-obe.outbound.protection.outlook.com (104.47.58.168) by edgegateway.intel.com (134.134.137.103) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.27; Wed, 30 Aug 2023 19:26:51 -0700 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=Q+oiR7AaXMHui3WSrQbh4spFDkwQ7UR+KSAz+jYJO7uXX13pKjWouVW0aQXFIknLdc/ogIi1KSMgTc9mcqOfHIb8uLhO+X+e8nCphhXlBHPAPulWbs18Hx9hpOdw52OYtK2ANuMtgnLJRwNAJgN6DhXVcEAN/ABMosqwI8jXuYIIxoVvaQe8vwtEw756CJx7IO/ywxbyc4N8ELD5MpiKmABPI3daVjALFfg1nsrMRypIFznAtA5K3zFH7bYgab4wETyVYl/OInu+2Dmne+Moxpbll4tJwtOkqpk3SESFZ07IjOshDyDkEh6EPE//DNx3OFrlPp00CogsTDbnzhUvJw== 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=CqxYbeqcrQU+GeuKgxcyzJI3EIn1/ZJ1bCw5IxZitt0=; b=ByJ23++zPDqHSuELs+d6IvZMv2yi3yIqoRMKftBIgQd7KWcjHzc41orWK0nsFb/M5GD6uD/EPECJclqYfMS78boacyw3ixQcl4muDw+QxFbDEKYHg+qA3lr5OGNnifj802n1lZC9fH+M7YOEDdPBXN11LpgE1Z7+fPEOKCn2znF/dFpWsZjMNpqKlq9n8FACyE84O7gwv2ztiNerppRbqSjdvLG0aRY/tVTCsJUJJPyF5qfA40gJQKcG3jek2NpdFMyZtRcjEoecYTa4pgsPa1OejEztSpv5Va+95Kb0USktjt1hsJj3K2xb1GXRfbHCfpkNqoEj5K49HAgUTOcDEw== 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 PH8PR11MB6779.namprd11.prod.outlook.com (2603:10b6:510:1ca::17) by DS0PR11MB7788.namprd11.prod.outlook.com (2603:10b6:8:f5::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6745.18; Thu, 31 Aug 2023 02:26:48 +0000 Received: from PH8PR11MB6779.namprd11.prod.outlook.com ([fe80::73c6:1231:e700:924]) by PH8PR11MB6779.namprd11.prod.outlook.com ([fe80::73c6:1231:e700:924%4]) with mapi id 15.20.6745.021; Thu, 31 Aug 2023 02:26:48 +0000 Date: Thu, 31 Aug 2023 10:26:36 +0800 From: kernel test robot To: Sven Schnelle CC: , , , Steven Rostedt , Masami Hiramatsu , , Subject: [linus:master] [tracing/synthetic] ddeea494a1: BUG:unable_to_handle_page_fault_for_address Message-ID: <202308311026.b4bc6948-oliver.sang@intel.com> Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-ClientProxiedBy: KL1PR01CA0002.apcprd01.prod.exchangelabs.com (2603:1096:820::14) To PH8PR11MB6779.namprd11.prod.outlook.com (2603:10b6:510:1ca::17) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PH8PR11MB6779:EE_|DS0PR11MB7788:EE_ X-MS-Office365-Filtering-Correlation-Id: beacb58a-1e00-4964-2ffd-08dba9c9ba0b 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)(136003)(346002)(376002)(366004)(39860400002)(396003)(1800799009)(186009)(451199024)(6506007)(6666004)(6486002)(6512007)(36756003)(86362001)(38100700002)(82960400001)(2616005)(26005)(2906002)(5660300002)(478600001)(1076003)(6916009)(45080400002)(107886003)(966005)(66556008)(4326008)(8936002)(41300700001)(66946007)(83380400001)(316002)(54906003)(66476007)(8676002);DIR:OUT;SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?qSw6xw6ZGj7hD9atjFZ3A+p66BCGCKSrnPx8aWMfNq4vkM84Pzei3VUvNPnE?= =?us-ascii?Q?kpy7y3EoMkFm0V8k29wZM1oFJfMfq3W8VB4rXGG2ETacafsEnfD4S0RCmr1O?= =?us-ascii?Q?CX5gUVIa6O29bvWrIW7bf22aigfuhbU0PwjKEkbjmjqssusrJJdXJ4J3gKxl?= =?us-ascii?Q?0aFnRwfVzcRfY3fVKGaMi55vkNkcZ1YKmt+l2Kb1TSb4+tgqRQ7jSGjFCUxa?= =?us-ascii?Q?9AzVuLtR3OQb8u1nRWni1vVwLTWtGXLcVsu2EnrXLc9k4/aGOzscjQyyhnHu?= =?us-ascii?Q?g3mS7V3fa3pihrZY6xcO7nZmVH1iXYO9rnNigOpoRYHJg846ZNoMXu3ACc/y?= =?us-ascii?Q?zCyY42XXnB9C78PtLHZtbcQdJRuiQ1h15R8zPp22YLijt0Eb8rwlBmrgnEZF?= =?us-ascii?Q?EPcYSRA199aE5TdFyAG5Ths2MzBmLpLATLXnDdgaaomA9Wb6LYoaeaEclbhF?= =?us-ascii?Q?yU9zaUlHSw5lgAhhuv5n/3A8JSe2O1MNXuKImNZduhTfqBeBvmxtdvTKZfII?= =?us-ascii?Q?gztqxRDtzK8IjQWIt7OoYRxCz5ckXPBDgThO/mbggJ2V1aoaU5+xNyTNbxwm?= =?us-ascii?Q?18JD31qgu5DHLJYWb+ZC3AKeHS1VhFpo2xPvwVhvWfD7KFjSQ5LdYF+PHp0m?= =?us-ascii?Q?aklrRhxI1IOcRqiVT152/A2FJl/xunz2cY6hcLzvVS6zXbBOxnNMfO/W0tS2?= =?us-ascii?Q?i9I6/yKUWA91u6GoV1FmQqDiRvIlVKwaB2nQS/8VNK/kuZTDRIppIaYXjdZZ?= =?us-ascii?Q?HLYdutWYKrg0jlhwucEUPjx28HUOKSB4jEC1C0ax6DvNMOmJd961NMLEGgYo?= =?us-ascii?Q?T3AZVJSn6YaE0exSA1L9DL0P8I0zRE1BYYk25CfHaWiaSfnqjwkCbbl2a2S9?= =?us-ascii?Q?3WuI4rH/VeNXvi6McPQw8yv5QZl/6Q/UVCsyxsHR5lXWkGtzDPXxwXZGeHb1?= =?us-ascii?Q?AF4Y02pYLxEJA/qnudXsyIzXcs4ko/nHLNUnivOZz+dTTNm2h3i4yOiV8EPE?= =?us-ascii?Q?Ssb+hG2NbvOoHQjVHC2r4qGE57amyh1vepd0wFDykJcSj6YiXjPyn1VUz/yA?= =?us-ascii?Q?zzvvzOAzt7yY01jsOfKu5M47iAXUW42cfoFZT5Frrhw9A1RfrQTA4A5pn/0E?= =?us-ascii?Q?4VhNgwI6y4U+oMlwgu+057syNJSg361Y2Ihe66vHZmShOpBXx3dK/gleHQPY?= =?us-ascii?Q?5gsi6UYWkkIWX7znnOG1dINToA6BpZ2cs1njIY9OqYAWfOtR2yqwFNTGQAPZ?= =?us-ascii?Q?oyDZkA49xyYSq0hrCKc95jzd29kEQIcOdrmeM3X0hlflv3q/g7P1YKykvfyl?= =?us-ascii?Q?juN/CQHg6dbsKKMg3TbfRoUrplg+vgpypa0NRYyKylTUXTRFuMZplxCFrR6p?= =?us-ascii?Q?L5B1a3RW/dGgkhs7BGAGC4pshAVzp6VHTpInRmn6ZDSSQ3age4HOqi7DRubJ?= =?us-ascii?Q?SgOz1Q1dHxXGRpFtf93HmfWfCVg5UJ6Qovdql4QaYHjP7Vmb2O6fp7xBu4kK?= =?us-ascii?Q?wvNQ8BSGmae9MvZUWzhsYhUdlFbouIJHad2INjJRB2klR2hqAuTPRr6HjJbP?= =?us-ascii?Q?kGd4curXNDDkxf7rR/X1nYrurLHDaX9UK92lj79197zGRPFr+3VIrXCI2Bex?= =?us-ascii?Q?7Q=3D=3D?= X-MS-Exchange-CrossTenant-Network-Message-Id: beacb58a-1e00-4964-2ffd-08dba9c9ba0b X-MS-Exchange-CrossTenant-AuthSource: PH8PR11MB6779.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 31 Aug 2023 02:26:48.0684 (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: NXPLvrtdKlV4edWjNacI7fbobvpAEgexhUGawADn78U59j3RNNqVbpmH5DyRWzd6alX4dkGdlMTwFy2u1pp31g== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR11MB7788 X-OriginatorOrg: intel.com Precedence: bulk List-ID: X-Mailing-List: linux-trace-kernel@vger.kernel.org Hello, kernel test robot noticed "BUG:unable_to_handle_page_fault_for_address" on: commit: ddeea494a16f32522bce16ee65f191d05d4b8282 ("tracing/synthetic: Use union instead of casts") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master in testcase: boot compiler: clang-16 test machine: qemu-system-i386 -enable-kvm -cpu SandyBridge -smp 2 -m 4G (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/202308311026.b4bc6948-oliver.sang@intel.com [ 390.645593][ T41] BUG: unable to handle page fault for address: 001c24ca [ 390.646174][ T41] #PF: supervisor read access in kernel mode [ 390.646669][ T41] #PF: error_code(0x0000) - not-present page [ 390.647170][ T41] *pdpt = 000000002e192001 *pde = 0000000000000000 [ 390.647717][ T41] Oops: 0000 [#1] PREEMPT SMP [ 390.648101][ T41] CPU: 1 PID: 41 Comm: rcu_scale_write Tainted: G T 6.5.0-rc6-00003-gddeea494a16f #1 402c7a624341eb9320bc4b1c80c0d4ec9184aa32 [ 390.649312][ T41] EIP: string (lib/vsprintf.c:644) [ 390.649695][ T41] Code: 73 43 89 c1 8b 44 24 10 89 04 24 89 5c 24 04 c1 fb 10 0f 84 ab 00 00 00 31 c0 89 ce eb 09 40 39 c3 0f 84 a2 00 00 00 8d 0c 07 <0f> b6 14 06 84 d2 0f 84 99 00 00 00 3b 4c 24 0c 73 e2 88 11 eb de All code ======== 0: 73 43 jae 0x45 2: 89 c1 mov %eax,%ecx 4: 8b 44 24 10 mov 0x10(%rsp),%eax 8: 89 04 24 mov %eax,(%rsp) b: 89 5c 24 04 mov %ebx,0x4(%rsp) f: c1 fb 10 sar $0x10,%ebx 12: 0f 84 ab 00 00 00 je 0xc3 18: 31 c0 xor %eax,%eax 1a: 89 ce mov %ecx,%esi 1c: eb 09 jmp 0x27 1e: 40 39 c3 rex cmp %eax,%ebx 21: 0f 84 a2 00 00 00 je 0xc9 27: 8d 0c 07 lea (%rdi,%rax,1),%ecx 2a:* 0f b6 14 06 movzbl (%rsi,%rax,1),%edx <-- trapping instruction 2e: 84 d2 test %dl,%dl 30: 0f 84 99 00 00 00 je 0xcf 36: 3b 4c 24 0c cmp 0xc(%rsp),%ecx 3a: 73 e2 jae 0x1e 3c: 88 11 mov %dl,(%rcx) 3e: eb de jmp 0x1e Code starting with the faulting instruction =========================================== 0: 0f b6 14 06 movzbl (%rsi,%rax,1),%edx 4: 84 d2 test %dl,%dl 6: 0f 84 99 00 00 00 je 0xa5 c: 3b 4c 24 0c cmp 0xc(%rsp),%ecx 10: 73 e2 jae 0xfffffffffffffff4 12: 88 11 mov %dl,(%rcx) 14: eb de jmp 0xfffffffffffffff4 [ 390.651345][ T41] EAX: 00000000 EBX: ffffffff ECX: c31b291f EDX: 00000000 [ 390.651928][ T41] ESI: 001c24ca EDI: c31b291f EBP: c428fcc4 ESP: c428fca0 [ 390.652517][ T41] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010046 [ 390.653162][ T41] CR0: 80050033 CR2: 001c24ca CR3: 2e2a62a0 CR4: 000406f0 [ 390.653800][ T41] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 390.654421][ T41] DR6: fffe0ff0 DR7: 00000400 [ 390.654809][ T41] Call Trace: [ 390.655097][ T41] ? __die_body (arch/x86/kernel/dumpstack.c:478 arch/x86/kernel/dumpstack.c:420) [ 390.655473][ T41] ? __die (arch/x86/kernel/dumpstack.c:434) [ 390.655807][ T41] ? page_fault_oops (arch/x86/mm/fault.c:703) [ 390.656237][ T41] ? pvclock_clocksource_read_nowd (arch/x86/include/asm/pvclock.h:36 arch/x86/kernel/pvclock.c:79 arch/x86/kernel/pvclock.c:120) [ 390.656769][ T41] ? kernelmode_fixup_or_oops (arch/x86/mm/fault.c:761) [ 390.657284][ T41] ? __bad_area_nosemaphore (arch/x86/mm/fault.c:817) [ 390.657763][ T41] ? pvclock_clocksource_read_nowd (arch/x86/include/asm/pvclock.h:36 arch/x86/kernel/pvclock.c:79 arch/x86/kernel/pvclock.c:120) [ 390.658279][ T41] ? bad_area_nosemaphore (arch/x86/mm/fault.c:866) [ 390.658710][ T41] ? do_user_addr_fault (arch/x86/mm/fault.c:?) [ 390.659137][ T41] ? exc_page_fault (arch/x86/include/asm/irqflags.h:19 arch/x86/include/asm/irqflags.h:67 arch/x86/include/asm/irqflags.h:127 arch/x86/mm/fault.c:1494 arch/x86/mm/fault.c:1542) [ 390.659538][ T41] ? local_clock_noinstr (kernel/sched/build_utility.c:301) [ 390.659974][ T41] ? pvclock_clocksource_read_nowd (arch/x86/mm/fault.c:1499) [ 390.660529][ T41] ? handle_exception (arch/x86/entry/entry_32.S:1049) [ 390.660982][ T41] ? pvclock_clocksource_read_nowd (arch/x86/mm/fault.c:1499) [ 390.661525][ T41] ? string (lib/vsprintf.c:644) [ 390.661882][ T41] ? pvclock_clocksource_read_nowd (arch/x86/mm/fault.c:1499) [ 390.662443][ T41] ? string (lib/vsprintf.c:644) [ 390.662796][ T41] vsnprintf (lib/vsprintf.c:2817) [ 390.663174][ T41] seq_buf_vprintf (lib/seq_buf.c:64) [ 390.663579][ T41] trace_seq_printf (include/linux/seq_buf.h:47 kernel/trace/trace_seq.c:96) [ 390.663979][ T41] print_synth_event (kernel/trace/trace_events_synth.c:? kernel/trace/trace_events_synth.c:409) [ 390.664446][ T41] print_trace_fmt (kernel/trace/trace.c:?) [ 390.664878][ T41] print_trace_line (kernel/trace/trace.c:?) [ 390.665321][ T41] ftrace_dump (kernel/trace/trace.c:10167) [ 390.665711][ T41] rcu_scale_writer (kernel/rcu/rcuscale.c:486) [ 390.666140][ T41] kthread (kernel/kthread.c:391) [ 390.666516][ T41] ? rcu_scale_reader (kernel/rcu/rcuscale.c:410) [ 390.666972][ T41] ? kthread_unuse_mm (kernel/kthread.c:342) [ 390.667422][ T41] ? kthread_unuse_mm (kernel/kthread.c:342) [ 390.667879][ T41] ret_from_fork (arch/x86/kernel/process.c:151) [ 390.668271][ T41] ret_from_fork_asm (arch/x86/entry/entry_32.S:741) [ 390.668691][ T41] entry_INT80_32 (arch/x86/entry/entry_32.S:947) [ 390.669124][ T41] Modules linked in: [ 390.669435][ T41] CR2: 00000000001c24ca [ 390.669806][ T41] ---[ end trace 0000000000000000 ]--- [ 390.670258][ T41] EIP: string (lib/vsprintf.c:644) [ 390.670623][ T41] Code: 73 43 89 c1 8b 44 24 10 89 04 24 89 5c 24 04 c1 fb 10 0f 84 ab 00 00 00 31 c0 89 ce eb 09 40 39 c3 0f 84 a2 00 00 00 8d 0c 07 <0f> b6 14 06 84 d2 0f 84 99 00 00 00 3b 4c 24 0c 73 e2 88 11 eb de All code ======== 0: 73 43 jae 0x45 2: 89 c1 mov %eax,%ecx 4: 8b 44 24 10 mov 0x10(%rsp),%eax 8: 89 04 24 mov %eax,(%rsp) b: 89 5c 24 04 mov %ebx,0x4(%rsp) f: c1 fb 10 sar $0x10,%ebx 12: 0f 84 ab 00 00 00 je 0xc3 18: 31 c0 xor %eax,%eax 1a: 89 ce mov %ecx,%esi 1c: eb 09 jmp 0x27 1e: 40 39 c3 rex cmp %eax,%ebx 21: 0f 84 a2 00 00 00 je 0xc9 27: 8d 0c 07 lea (%rdi,%rax,1),%ecx 2a:* 0f b6 14 06 movzbl (%rsi,%rax,1),%edx <-- trapping instruction 2e: 84 d2 test %dl,%dl 30: 0f 84 99 00 00 00 je 0xcf 36: 3b 4c 24 0c cmp 0xc(%rsp),%ecx 3a: 73 e2 jae 0x1e 3c: 88 11 mov %dl,(%rcx) 3e: eb de jmp 0x1e Code starting with the faulting instruction =========================================== 0: 0f b6 14 06 movzbl (%rsi,%rax,1),%edx 4: 84 d2 test %dl,%dl 6: 0f 84 99 00 00 00 je 0xa5 c: 3b 4c 24 0c cmp 0xc(%rsp),%ecx 10: 73 e2 jae 0xfffffffffffffff4 12: 88 11 mov %dl,(%rcx) 14: eb de jmp 0xfffffffffffffff4 The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20230831/202308311026.b4bc6948-oliver.sang@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki