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]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C04C7CAC5BB for ; Wed, 1 Oct 2025 23:58:42 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 1455B8E0006; Wed, 1 Oct 2025 19:58:42 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 0CEF58E0002; Wed, 1 Oct 2025 19:58:42 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id ED86B8E0006; Wed, 1 Oct 2025 19:58:41 -0400 (EDT) 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 DA5518E0002 for ; Wed, 1 Oct 2025 19:58:41 -0400 (EDT) Received: from smtpin26.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay03.hostedemail.com (Postfix) with ESMTP id 7AC1AB7C85 for ; Wed, 1 Oct 2025 23:58:41 +0000 (UTC) X-FDA: 83951212842.26.62F9126 Received: from mx0a-00069f02.pphosted.com (mx0a-00069f02.pphosted.com [205.220.165.32]) by imf08.hostedemail.com (Postfix) with ESMTP id E3A1216000C for ; Wed, 1 Oct 2025 23:58:37 +0000 (UTC) Authentication-Results: imf08.hostedemail.com; dkim=pass header.d=oracle.com header.s=corp-2025-04-25 header.b=SMrWTZ7k; dkim=pass header.d=oracle.onmicrosoft.com header.s=selector2-oracle-onmicrosoft-com header.b=WRAIw67f; arc=pass ("microsoft.com:s=arcselector10001:i=1"); spf=pass (imf08.hostedemail.com: domain of jane.chu@oracle.com designates 205.220.165.32 as permitted sender) smtp.mailfrom=jane.chu@oracle.com; dmarc=pass (policy=reject) header.from=oracle.com ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1759363118; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=LiKv/Q8TyXyUbLknhxYsvUlx4ICICu/FV0Owoy0U4uw=; b=bMk2n6e2esSr1ifnTwO/5XJpp8z5ufjqOvVJPqb5+K3/5vPwSYX2HqIma0o4K0soBbikVE kcHF/XwhZ/lBZCk6YZdlYoJHazigWq1Te4bWTfQsARl1Wz0iIZLxUHwlouFRnv9/wJRydQ 2sUbOk2XDSWH1S9oBb9DsOXHy5igoEY= ARC-Authentication-Results: i=2; imf08.hostedemail.com; dkim=pass header.d=oracle.com header.s=corp-2025-04-25 header.b=SMrWTZ7k; dkim=pass header.d=oracle.onmicrosoft.com header.s=selector2-oracle-onmicrosoft-com header.b=WRAIw67f; arc=pass ("microsoft.com:s=arcselector10001:i=1"); spf=pass (imf08.hostedemail.com: domain of jane.chu@oracle.com designates 205.220.165.32 as permitted sender) smtp.mailfrom=jane.chu@oracle.com; dmarc=pass (policy=reject) header.from=oracle.com ARC-Seal: i=2; s=arc-20220608; d=hostedemail.com; t=1759363118; a=rsa-sha256; cv=pass; b=UyyhhHRqKUN86/Ydybf7Om3G993McwnyyjFAlme2ZvPt8Y7d7Bv4ZdRD0IFvUK8YaimWI1 WAUaVITJefo0fVORqtVOx8xlZpkwxw5K6G/n95NvswRXfo+W8lXLcgzVGaIgsSQmyjoKjL lxqE9oZZg/7kecGiObYcEfnEaR2BzZU= Received: from pps.filterd (m0333521.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 591LfxXl009140; Wed, 1 Oct 2025 23:58:29 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h= content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s= corp-2025-04-25; bh=LiKv/Q8TyXyUbLknhxYsvUlx4ICICu/FV0Owoy0U4uw=; b= SMrWTZ7kWOlRuYgrdgQd2NQ+qqoUnOjwQXc1waVrLAXLP2bIimf4TAk69DK/jicU GskiALWzYMWcbV3GpCDrnsOn3Po2wVqfwLDAcJR/Xp3rdC3efFgtEtUTdbU2Sx1t H7f5psV8tnM6ab1tGLWJiecpt1SFOO4tx3FWjAezCgcUjfjZmuqpnJFlxbEzlFAN FhG8Eeb0nzrZRpStOO57IbxuH+c2R7E+YPOBhPhckWh65uyWYg1POwhIWyOeFIaD 0Cpo70WaowYyowB40Ca3IjTra3LgpxuVpNq7XN9B/xfOQUOrNgWdK2gGq4bnYJ/S LH7rDemxcjj1bdkfgXGjRQ== Received: from phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta01.appoci.oracle.com [138.1.114.2]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 49gmactg2m-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 01 Oct 2025 23:58:29 +0000 (GMT) Received: from pps.filterd (phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com (8.18.1.2/8.18.1.2) with ESMTP id 591L8F6P004102; Wed, 1 Oct 2025 23:58:28 GMT Received: from byapr05cu005.outbound.protection.outlook.com (mail-westusazon11010059.outbound.protection.outlook.com [52.101.85.59]) by phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTPS id 49e6c9t7np-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 01 Oct 2025 23:58:28 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=Is8Cy3oDdpiqPdyw01lZaneZ84osW8SRdnznQDZbiOnPv6PEbsIKWPaM/9fEUtS64g8ksiTDT2xxZphhNT229TpHu7uJtGw7XjgrzP1XkflcCahwKh4kqbcP7U7AVkKNvHM50mx97L8C4f0UsIfeakdUvw6qUS3bThfjVCrqYsMRoxIdm/eqHD/FvneLQwGIkHdZVFlRE+eFkbgAq0jLsKJVtrdSaMasJmKXIbln2otkqHTyVOFr4Xt4ZgJkumMAkOP5gUPttZPybYB1ZD9+mGllAYibSfV3e1DCmoPMhcvGGbKezD8eB5BOtBMeS8we9MiHQuF+CpjvpNCfY+L0yA== 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=LiKv/Q8TyXyUbLknhxYsvUlx4ICICu/FV0Owoy0U4uw=; b=qbso0iZXP68pvROioWzcglrg7uLH+T50Iad2H/PnmPb+W5zXbBE2Dx61rjylQ6CMzoQvb+RMbr2GW91Iid5+Px57yDfkBOABxK3BbqKQSL82VZYIvvHhI9BSdx+PJJP1Wq3XgSGtMDXjjLeoVxAKaaxF6A+u3O41FBlj5YJq5pCt3Q90oNxwEvztRAL+U81JgfhrgZyNF/vB4AMjaWlCNzUCNSuEB5bqFD7147wXBqJEIMaKpr7WDlRnSeLYCoojEAw2h4UcXEOcLjHkKQzxu1vd9ZV6mSiwUOp776c7H5Mgrf5B/5vurXd0f7XVu5iK80CfOcFWCogU9BhwpIrtnA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=oracle.com; dmarc=pass action=none header.from=oracle.com; dkim=pass header.d=oracle.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.onmicrosoft.com; s=selector2-oracle-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=LiKv/Q8TyXyUbLknhxYsvUlx4ICICu/FV0Owoy0U4uw=; b=WRAIw67f8a6bYWHHukKgLrtacLRcZ1FuyQN+af8FL2pFNVlWt6Mu85Hhzv4OoadpJhE6ota8tFWvzsbOKIziVcQapKkttoTno0rJSErci+Si06aX2JpbWZgjNvLx0Mks4Y/Km5i/f8d9YxaOcZojVr4KqJvDsgrIufIOT+lGjoc= Received: from DS0PR10MB7364.namprd10.prod.outlook.com (2603:10b6:8:fe::6) by CH3PR10MB7494.namprd10.prod.outlook.com (2603:10b6:610:163::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9160.18; Wed, 1 Oct 2025 23:58:22 +0000 Received: from DS0PR10MB7364.namprd10.prod.outlook.com ([fe80::b7d7:9d3f:5bcb:1358]) by DS0PR10MB7364.namprd10.prod.outlook.com ([fe80::b7d7:9d3f:5bcb:1358%6]) with mapi id 15.20.9160.017; Wed, 1 Oct 2025 23:58:21 +0000 Message-ID: <2afee6bb-b2f0-4a86-ba8c-d33b0b477473@oracle.com> Date: Wed, 1 Oct 2025 16:58:18 -0700 User-Agent: Mozilla Thunderbird Subject: Re: [syzbot] [mm?] WARNING in memory_failure To: syzbot , akpm@linux-foundation.org, david@redhat.com, kernel@pankajraghav.com, linmiaohe@huawei.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mcgrof@kernel.org, nao.horiguchi@gmail.com, syzkaller-bugs@googlegroups.com, ziy@nvidia.com References: <68dcb33a.a00a0220.102ee.0053.GAE@google.com> Content-Language: en-US From: jane.chu@oracle.com In-Reply-To: <68dcb33a.a00a0220.102ee.0053.GAE@google.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: PH8PR05CA0013.namprd05.prod.outlook.com (2603:10b6:510:2cc::13) To DS0PR10MB7364.namprd10.prod.outlook.com (2603:10b6:8:fe::6) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS0PR10MB7364:EE_|CH3PR10MB7494:EE_ X-MS-Office365-Filtering-Correlation-Id: e71655a0-a385-487e-a20f-08de014666b0 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|376014|1800799024|366016|13003099007|921020; X-Microsoft-Antispam-Message-Info: =?utf-8?B?Q1ZGbjNYcDZiUU1FL2c2WGR2aWxLbFF1Z3l6NDdsL2c2UDBCdUcrYTkyY1lQ?= =?utf-8?B?Szd5bGdFUlU4dW5SSTdBQ2JPeDVtUmI4WHpwTVJLRzcyVFhIYlpvU1U1alVO?= =?utf-8?B?WnNPNUV4ZFFzeENwbUt0MHJTMExnNHNPM1B2Q1BCY092ZUJrZWlHdkZSS1Ux?= =?utf-8?B?ZnFnbFowamJ2elhLd1JEZmRJTzZFay9DTXpFMGxJemc1YkpHdVB6R0JzZGt2?= =?utf-8?B?WmFmV282cU01b1VhaE9ZK3lwS3I0eXZHaUdtZzFQb2NCQnJMazZHVjd3Z0ZM?= =?utf-8?B?KzNTbGthU1JLZjNrMnUvNGtaZnBZVjg5OUVjU1d0UUxXNzZBK2tyb01FVTdn?= =?utf-8?B?V3VJTjV2ZGN3V25YMG9iVjlxalhrRmJQY3VvcERxTEpoT0RSQ00xRlhwc3hN?= =?utf-8?B?OVAxZ0ZYRHlRMkVMam5TRnRjbjJYRUNzQ0wwRGcwVlBFVGgySTB0OXRZOXFn?= =?utf-8?B?dmZHdTZIWHgrM245cG5oc2lUU29pTjBoK1ZwV3dvWU93eFpwVkNkb2cvQmd4?= =?utf-8?B?Y1prSkl5Q2RhNngvajFxWDFaWklIU0Y3MTNxUEErRzV6b1VqenR6Q2ZwOUhI?= =?utf-8?B?UHJyQytqZWRHQ1NXdzJOWTJkZG8rMTJQTDNYSU50SFJWb3cwdE9aRnNXWHQv?= =?utf-8?B?RHMwdEdZckEyMEsrbkpXRDU2NW4vVElsWU1qM1NLTUZvMFB3TW5aeVVnMzNE?= =?utf-8?B?ajRmZ1RReit4ZWxUNnFzSHk2czNzM241eTgzNFNia1RUQ0pVV1hyWVdYTGJ0?= =?utf-8?B?QjEyWFhIODY0V0lPdWNoei94YjhiTkJidkZBeDdXeHAzSFc0M0tZR2d3ejZI?= =?utf-8?B?M3B4WTVGY3dqWVRWbjBxVndkN0FjMkRNS1ZXZW9ycXRvYzVyUDZoU1U2T29n?= =?utf-8?B?MkI0SmxhWHRqdUNVdDVzS09WS0dHNGFvR0hJcnZYb01zZGw1MkJQQmtZTUxV?= =?utf-8?B?c3hPbDVBVkcvZ3IrZFI0RjBBOUl4MU5mVkRYUG9FRDNOcXVWaWxITGdzcVRZ?= =?utf-8?B?NkV0bHVGUis1empTb3ZIc1BwSWRjTmhpWUY1TCtYd3NLNmtjaHlkaVYva0ZW?= =?utf-8?B?UisxektrM3VzSUdtVzA1cENEakhPZGU1T3NLN0lDUVBNcjcwRWNVaXNDSjB1?= =?utf-8?B?YXNUVXo1bGRBQzRTbS9nM2w2QkFWalcza1MxcHZic0duZ0VDVXd2dTVPelZZ?= =?utf-8?B?SXRxZmdUY1FVYnFBVlA3cVJGS3NHOXhMKzRxZmY1SmlLZkNvLzZ5YTFPQkQ3?= =?utf-8?B?djYwV0NrS3JkVlMyVzhhVFg4eHcrWjlNS004b0lQbnM1VS96MEI5TUFtS0tT?= =?utf-8?B?Mk5YWVBvYzNaaXFMeElwQjE3cEd0dm9qS1VqV2J2M013RkhNMWZjYUd3TGNa?= =?utf-8?B?NE43YkpTL04raXo1TmRiMmd6NWtRVzBNSlJscDFpR3MzNmsyemZUaUVVSmJr?= =?utf-8?B?b3Zud1IrM2tkOCtvQTgwU21wV0pIMGEvazN4T01qTFRFTE9QbGozVWc3OVZa?= =?utf-8?B?WnI1b3IxQmRFRFViSzFjRjBmeXBOYkhBSXdYY2s0QUFQa2Q2bjZhM3ZQZzQw?= =?utf-8?B?TWIwM1lEbnRSZ1VCNFJuazIxRHZnQitLdzlhNDZPeVhqendZOGZieXRnakZZ?= =?utf-8?B?UDlGdVFkODk4dysxVWw1NFJXSHd2Zm9kaysvUHdoMWs5MUROdUl6NjIzc2Jl?= =?utf-8?B?VTVXTU9GcThrZWZBVzNpbG42SWZjNCtsZ1A4VDFpMlliTXJpMmRyOHJXMjJp?= =?utf-8?B?T1R3REdaOUFwb0xtWU9XMUNxa2pmVXpVZExmaE9YSHFiWVI0RlhYKzNUc3NH?= =?utf-8?B?enFIQjhQMXNlNkd6RUl1eHZCc3o1alBuSWF0SkpXOUcwTWNiNnFCWFhDRTdS?= =?utf-8?B?UVJROUw4QnJWWDRweG0zNDJJZStxS25ycnpLS0pWWTVyWmxkemw3bUtoMG5l?= =?utf-8?B?aWUwS2VuemFMa3NWWVhPOWhrOVJJdXVEWXF1NGRDUTErZEF6Z2h5dkZtQzJT?= =?utf-8?B?VzNWL2Zpc0VBPT0=?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DS0PR10MB7364.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(7416014)(376014)(1800799024)(366016)(13003099007)(921020);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?RGFIVkJVMHQ5WjFRbVFmWXgvbWVSL2kzTU4xVnhDRmhTWTM4WExYckVsWXFY?= =?utf-8?B?ZzFaMjFmQU1IQ0JOdndicU1CZnVRL25BT1dRaUEzejI1TEl6N0h5bTJMNE1u?= =?utf-8?B?cjhMWU9Ba2xUNWVWbi9VdnQxc3hFTHI0c1hKOGY3S2VqcUdxN25VamxFWTU4?= =?utf-8?B?M1VCTU14OElKcDVXYkJINndZeHRPTW5scTM5bEV0WkNzRmMvN2JCVFVjQWRr?= =?utf-8?B?Z21JcUxSd0NBTFl6QVFHMnUzTk0wcjNoYmRtVU9FMVVXTlhnU2NjL0hrVWtv?= =?utf-8?B?ZFBqWldvdkpsL0JPaG45RVozS0llMzk4dXlMcXBwcUdVOWtPUitDQzh4MmVh?= =?utf-8?B?MzVUUy9EMWcvdHJLNlNyMjVrQk81eURISGQxNjJPS0NORHFSTjJqazhtMFBW?= =?utf-8?B?L0U5eGZVWGo1eDBmUGtZY2hMd21QRkYvK0pXZkxEZGM1amJMN2YydkIvVFZ4?= =?utf-8?B?MmdJSHRrQ2RiUzJkbm80QnVSc3FmL1NZWlN4dkhoNmZWYUU1Zkc4R250TjhG?= =?utf-8?B?b21YaVRSSXVwNkVjbVN0YVZlckc5eHRUNVF2U21wL2M2T0lLUTJkbTNQQWVa?= =?utf-8?B?UnBldTNjZ3pHUDV1YWsrYlJydnNJL3JCRE91QWwxVDdadndyUm14VUVOc2Vo?= =?utf-8?B?UllQai81QnVDOTd5dElJQmpIdUFDZHVsSmZjSVZmNnV0NStOcjFHdmg4MTA2?= =?utf-8?B?bThKVElCekhDUG5UeVZOZ1JXVWpzT0ZST2Y3OHpGSWViVW9lcGdqK1NXazdu?= =?utf-8?B?TVROVjdlOTE0Y1VTSjNmd2FvYlNxRU50TjlqcklINXptc0RCRXMranYxYm5i?= =?utf-8?B?Z1lXQWcvK2NSY0NGb1lmeFZNRG5hV2JQRXRJUlZQUTJEeml5SlhmYjRKTER1?= =?utf-8?B?Y281S2xwWjhQemFGSzB1WWFyU3N6ZTBiUFFTdC9NTk5GN3F5L2tWUVA0bytT?= =?utf-8?B?ODVYSlBFaDA3WHcrZHZFYVRYdm0reDhVZWZsNkQ1ZzYzaTRlR3FncVRTOVAv?= =?utf-8?B?T1RxTmE0OTIrcFpUbmFVb29hOG5XWVdLU3plMWN2aE1Vc3NvWStFTEwrK1FY?= =?utf-8?B?bTBxdFBqajB1M2gzcGRTcHFJM01vNlVwM1d2c1hXWWdKTCswRDZMRlB6WitS?= =?utf-8?B?R1JtSy9ia0RoQ2NHM01IeUlKdXJTd1IwVmVZUFRnSThlUkNpd2NkeUNqdGRU?= =?utf-8?B?TzUzUklQZVdqT3RUd1dBWnFRZjBVd2NqN3pWSFlINlJvaDJCTmJxNTZpWmtP?= =?utf-8?B?ZXgvODdKUVdlRVlValNhNTBYcHZIRVJjaUQwaWhSdVlESXNranYvODVvaTZZ?= =?utf-8?B?dTBic2c5QzQ0TXU1VVV2T055b3RkRWxuSVVQNjBFaFlHMDNWdHhtU2pYSFNv?= =?utf-8?B?amhJY2hobVZDZldMTWlkM3AwcFdldThJUUFGbjlMNWVJeDE5QU10cThCT3BR?= =?utf-8?B?L2JpV3YwdlVxVksvNzdhQ1R4MWwxbnppZG9TSzRvNmFmQ0NCaDB6NXkyK2V6?= =?utf-8?B?RFZ1OHY0LzZRU3JmTnU5YmJtVUdta0Zyb3pnTFlDK2JVRE42MlNmZW13T2ZI?= =?utf-8?B?V01wUG1tNXEyeXdCYVJweWU4bk9sNSt2ZzVsSXFJMFJxZm53SWs2RDgyQ3Nr?= =?utf-8?B?YzlFdXZvd1ZpWnJVazRaMnNGVmVhSzA0UDg4aHAybFlrQTNzZzBxRDdaR0lC?= =?utf-8?B?Ym9zVllCdG9aU0t1bElCMER0SVlwTld0NUplbXlITWdIRCsya0Vrd3Q4NFZp?= =?utf-8?B?YVd2S3p6KytXWnp6dy9td2RxTGxmVWRncWZncTJ0ejR3dTc0eE1WVWZKTkNR?= =?utf-8?B?WGVJa1ZDV1NYWlNhV3hDakk0OXZKeW9SaS84amJkYVNkZGQvWS82VE1ZYU1Z?= =?utf-8?B?OWwwRENqSDFyUzBVNXZpc2pTcFptVU10eUFjWHpNYlpPTzA0QjBHeXRFbXFi?= =?utf-8?B?YkhyZXB1aFAxUjlqTmZLZ3dIemhiZmV6NTdFaHBCZmEvdVIwVG1ZNEdSL2NP?= =?utf-8?B?R1FRUlVpTEV4a3hJQlFJK1UyS3F4ZGhodFVVR3JDWDJkMW9EVEpZM29lUVdr?= =?utf-8?B?d1dZcFRJVlRJdnpPRVFycTNwdGFUMWcrZG1hZVFSenNrS1JwSks4S0p3QkVo?= =?utf-8?Q?4ad2kkjLJ8sTTVQ8mR/4n3fXu?= X-MS-Exchange-AntiSpam-ExternalHop-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-0: 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 X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: e71655a0-a385-487e-a20f-08de014666b0 X-MS-Exchange-CrossTenant-AuthSource: DS0PR10MB7364.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 01 Oct 2025 23:58:21.7758 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: eDmmUL8FK2KpYZkmbOoK+XOfkdIAx20K0pH9l7sJ2WKm/0aHj4VusAdYIKw0J3EZmbLrTrD2bjJ6P53yC7XRqg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH3PR10MB7494 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1117,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-10-01_07,2025-09-29_04,2025-03-28_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 bulkscore=0 suspectscore=0 malwarescore=0 adultscore=0 phishscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2509150000 definitions=main-2510010210 X-Authority-Analysis: v=2.4 cv=P5I3RyAu c=1 sm=1 tr=0 ts=68ddc025 cx=c_pps a=XiAAW1AwiKB2Y8Wsi+sD2Q==:117 a=XiAAW1AwiKB2Y8Wsi+sD2Q==:17 a=6eWqkTHjU83fiwn7nKZWdM+Sl24=:19 a=z/mQ4Ysz8XfWz/Q5cLBRGdckG28=:19 a=lCpzRmAYbLLaTzLvsPZ7Mbvzbb8=:19 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=x6icFKpwvdMA:10 a=GoEa3M9JfhUA:10 a=NEAV23lmAAAA:8 a=edf1wS77AAAA:8 a=VwQbUJbxAAAA:8 a=yPCof4ZbAAAA:8 a=bnBHPdndcopWjQMzyRAA:9 a=QEXdDO2ut3YA:10 a=DcSpbTIhAlouE1Uv7lRv:22 a=poXaRoVlC6wW9_mwW8W4:22 a=HhbK4dLum7pmb74im6QT:22 a=cPQSjfK2_nFv0Q5t_7PE:22 a=p-dnK0njbqwfn1k4-x12:22 a=jjky5lfK57Ii_Ajn6BuG:22 X-Proofpoint-ORIG-GUID: 893x0tMwGOyVUd26BgoZKp5ga-LRmLik X-Proofpoint-GUID: 893x0tMwGOyVUd26BgoZKp5ga-LRmLik X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwOTMwMDE2NSBTYWx0ZWRfX98T0IaoBZvOy Y4szIxrIgtr3sqU87CwDI2CdhhT9yABeHUfT4biSfbADZE4BCioOLYFPJk7sGtscS4CbnK+q72l wAvp1to+dCr/TkBL2PAe362MWx9Y08iTLq27slN6juOI4rUZJ9E9EwKBiKDBFokrHCi3XninihA wz1oECujuHzrO0uhxXqzyRIx3duOnP0AaYndW5dzNzwhe8t974Ocwh2GliPJ+8rTWi974G5PM0X FkfDUinSvJFn0cp0i5whc3hvmd6mUE6Hiijrhn2nBvqQH3ZJTxbJb6DkasrpfzrSLuy7WQvX9+D L5vMV1xWEUAJ05kjpEPkq7glJxw+0cgbRPPPjGYAPR/P5R/NrucxwSzJpyII5AbnKXg/dvSQDXM AV7Qw6Yuqs3WLpAg/avUHr4ilRa6+g== X-Rspamd-Queue-Id: E3A1216000C X-Rspamd-Server: rspam05 X-Stat-Signature: pzz8zzsbeme3y7nq414wu9hs6to9gm9d X-Rspam-User: X-HE-Tag: 1759363117-142675 X-HE-Meta: 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 ZtPAFZm2 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 f8svzoku B09IWWsH4InyDocxTaYgQgRreGTJIHl8ylGWEDVjnS971QH0pgJUAJ8jO0m43Py9XONIjmsTgorhQ+aAyQH8wg== 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: Hi, Zi Yan, On 9/30/2025 9:51 PM, syzbot wrote: > Hello, > > syzbot has tested the proposed patch but the reproducer is still triggering an issue: > lost connection to test machine > > > > Tested on: > > commit: d8795075 mm/huge_memory: do not change split_huge_page.. > git tree: https://github.com/x-y-z/linux-dev.git fix_split_page_min_order-for-kernelci > console output: https://syzkaller.appspot.com/x/log.txt?x=17ce96e2580000 > kernel config: https://syzkaller.appspot.com/x/.config?x=714d45b6135c308e > dashboard link: https://syzkaller.appspot.com/bug?extid=e6367ea2fdab6ed46056 > compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 > userspace arch: arm64 > > Note: no patches were applied. > My hunch is that https://github.com/x-y-z/linux-dev.git fix_split_page_min_order-for-kernelci alone is not enough. Perhaps on ARM64, the page cache pages of /dev/nullb0 in the test case are probably with min_order > 0, therefore THP split fails, as the console message show: [ 200.378989][T18221] Memory failure: 0x124d30: recovery action for unsplit thp: Failed With lots of poisoned THP pages stuck in the page cache, OOM could trigger too soon. I think it's worth to try add the additional changes I suggested earlier - https://lore.kernel.org/lkml/7577871f-06be-492d-b6d7-8404d7a045e0@oracle.com/ So that in the madvise HWPOISON cases, large huge pages are splitted to smaller huge pages, and most of them remain usable in the page cache. thanks, -jane