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 aib29ajc255.phx1.oracleemaildelivery.com (aib29ajc255.phx1.oracleemaildelivery.com [192.29.103.255]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C16A0C433F5 for ; Thu, 10 Mar 2022 10:59:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; s=oss-phx-1109; d=oss.oracle.com; h=Date:To:From:Subject:Message-Id:MIME-Version:Sender; bh=vNQT8ixkb1X7te1n49jiXUlprZCCrOY085x5opJwtz4=; b=u/MbYTawdlWZKKfrwdqxraZZF4Y6hsvouXLNG0jodxuZN54ol8PC7xXY8ASHJ9XkCG+R14Wt5xMC IFP3QyHGyqbt1qEdVwC7fQTarF/yLWocnTIPEGrxXM/bmFYxRhsih/JYNyB1ot+ivhpwa3grxlyK PskqL9vgBu+mR9VSRtbExvUmfivIVQHMWFZN3vAJGy0iS5ytGFTGZgTMpd2fE7PhQjh/dLd3vNlK JoC6jBkmPdqklecCVZT6ROjxe6LuvRXJa0IWm9rySsPnhdO1+UVY8leANeiFV4Tr/AwcTjOeZKts rprG/Jr7uhP452CCu4MpSsltUDYLmdeOqcVbsA== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; s=prod-phx-20191217; d=phx1.rp.oracleemaildelivery.com; h=Date:To:From:Subject:Message-Id:MIME-Version:Sender; bh=vNQT8ixkb1X7te1n49jiXUlprZCCrOY085x5opJwtz4=; b=mI9KHf3Rtt44mtNndEzEAU8KQyr70HwxLQ2cGMADcpjlkDH3qj045bujMckXgU3WlYcua9AJbhWx WUyTxYgk0LTRiHScfZ36dKdx9y2f6cXtW/sdPzbSIJtet/yPbd9caZjbrhZSjcPcTLQdTR6/Q4l/ VormhVQFFnByUnHEr3FjT8VAaHFX26zaRNpnQF+H/OWIodatjtGLNB8+dCzIraXr+X0wDSJVvPDk pebimp+JXHrt2zUSmQFpvBU4IKYoktaTmLnqc7voQAY0A3nC2qxj3yh/CiYZb9eY7DeGN4qI1Csy pAWXrnni8JMe6UeytiHDwp3BpI0tp+wdEjzCkg== Received: by omta-ad3-fd3-302-us-phoenix-1.omtaad3.vcndpphx.oraclevcn.com (Oracle Communications Messaging Server 8.1.0.1.20220222 64bit (built Feb 22 2022)) with ESMTPS id <0R8I00EI3ZURI2C0@omta-ad3-fd3-302-us-phoenix-1.omtaad3.vcndpphx.oraclevcn.com> for ocfs2-devel@archiver.kernel.org; Thu, 10 Mar 2022 10:59:15 +0000 (GMT) Authentication-results: aserp3010.oracle.com; spf=fail smtp.mailfrom=heming.zhao@suse.com; dkim=pass header.s=mimecast20200619 header.d=suse.com; dmarc=pass header.from=suse.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=mimecast20200619; t=1646909938; h=from:from: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:content-transfer-encoding; bh=lLFK+8S+ODT0M9a8iHgbMH4/g7TthU5rHlE9JSH08KY=; b=iLFtaxOlt+URU510CztEq8lYYwfHQGqQ0SKnusjSAiFKYUBQJx9rGU9aXoWvKuBGXogqwV N7svqPd2Xk7eYHFvWAHMvgEYwpmSmc3P3a/QPegtVXSiseRgOpFsoDQCtLBz5rIx6SVbwv AlQwzHfLEMm+MjKveeBauO6l883vDxA= ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=oThjMHeU5uqlU2k4oCPDP4d34see5bixD35zKCft9Yai+LHmpH6OKglUeuxUuzKhbPhZdznL1bOFD29XVMIdokn4Pf1uyaNnInXXu4bNr9VASBUglShBf8NTIKf4OA2bp96gXGmI+UlNgcdH8hsJ+zcl8GtTqLNNqwI6Wfglqc9/m4FurtUZXk/M5UN5uzP5XOzbQIvcYvfpyP0gwnXn+YsMY7hyiea+xVkBNmGYm6XMNLiKJ5pHSqAhmiilXZ9AyTQWgh83ttloSu9H1eQsZUlnD0DrX5xolm55HUP510mGsELfT7YkZe8O1Ms+KbYK0xTt8nRWS2zEWhxvdw7KWg== 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=fndAzVINxpkmXN2PL0o3jgMUP9wHW0BU3LhJ/dit/Qg=; b=ek+EfdUANdLdvjVhoZHPIaQQt8Y/EvwnhA3APq7gX2BQ1dHNKgllOe+r34ALsoEyQaTBEgT7iQi9xjO1KfXW1YN2+SJQQJx8X54DM2VPhMT8VvcczvLiVIS4HJi53+lqMNs8k0dutXjk9j6X3pV6ypOv+xb8scyyis+GVewplSPQUQOuVSfsX0hJt6AZ6uL2IrZXYgJ7jEBA/kyFFcBeTJ5JdOqxm7RwV9i7zVDQbVB6qZn8fqGNL9t6dSCRPY7zTBvqjmmN1fqYSVOmjTH3mwuL/GTWbKr2CHEguKCkshILFSfoPYJ+BGngB7dzz+2Df+APj2qpvptONqoSWLAnkw== ARC-Authentication-results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=suse.com; dmarc=pass action=none header.from=suse.com; dkim=pass header.d=suse.com; arc=none To: ocfs2-devel@oss.oracle.com, joseph.qi@linux.alibaba.com Date: Thu, 10 Mar 2022 18:58:50 +0800 Message-id: <20220310105850.1817-1-heming.zhao@suse.com> X-Mailer: git-send-email 2.33.0 MIME-version: 1.0 X-Forefront-Antispam-Report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:DB7PR04MB4666.eurprd04.prod.outlook.com; PTR:; CAT:NONE; SFS:(13230001)(366004)(316002)(6486002)(186003)(6512007)(508600001)(26005)(38100700002)(8676002)(44832011)(4326008)(66946007)(66476007)(66556008)(8936002)(86362001)(107886003)(5660300002)(6506007)(2616005)(2906002)(83380400001)(36756003)(1076003)(6666004); DIR:OUT; SFP:1101; X-OriginatorOrg: suse.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Mar 2022 10:58:56.9781 (UTC) X-Source-IP: 194.104.109.102 X-Proofpoint-Virus-Version: vendor=nai engine=6300 definitions=10281 signatures=692062 X-Proofpoint-Spam-Details: rule=tap_notspam policy=tap score=0 mlxlogscore=999 mlxscore=0 priorityscore=118 suspectscore=0 spamscore=0 clxscore=193 adultscore=0 bulkscore=0 malwarescore=0 lowpriorityscore=0 impostorscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2202240000 definitions=main-2203100058 Subject: [Ocfs2-devel] [PATCH v2] ocfs2: fix kernel crash after mounting when dlm doesn't ready X-BeenThere: ocfs2-devel@oss.oracle.com X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Heming Zhao via Ocfs2-devel Reply-to: Heming Zhao Content-type: text/plain; charset="us-ascii" Content-transfer-encoding: 7bit Errors-to: ocfs2-devel-bounces@oss.oracle.com X-MC-Unique: dSzK3Ei7Nj21UsW43s7YtA-1 X-ClientProxiedBy: HK2PR02CA0222.apcprd02.prod.outlook.com (2603:1096:201:20::34) To DB7PR04MB4666.eurprd04.prod.outlook.com (2603:10a6:5:2b::14) X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 1517f980-48bd-4345-45cd-08da0284f957 X-MS-TrafficTypeDiagnostic: AS8PR04MB7766:EE_ X-Microsoft-Antispam-PRVS: 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-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?kch4VReeMzbW9JDSejbV6nIyv8jiOcjX5TCFOpCypN1q/jWzzhpx4ASov1GF?= =?us-ascii?Q?bGojCQs7AfcQcOcSPH2vLamYvjDn3RnjnhCnhaBamYCcbTrNBsZjxTU/lxqo?= =?us-ascii?Q?aszVaoeHZpjGx14ERHaCrgu/T1lhrdtltfEFJ7K8iQc91eUBDYBhKhSXBJsw?= =?us-ascii?Q?LJYtVX3zCx41v0uACm5a3/UUoTKpDlEpK2x4wlQsfBfxVxPjgLTyL3tyIsUG?= =?us-ascii?Q?1u6KXhZGuMMW5q3/FZzM9eIdJ1v0bh7YS4750Sluf0zNbgvQzxBS7JlevVYm?= =?us-ascii?Q?3FQESN9nrs0a/Ha4FOlgyZzgxg70DURRzSfl9DsqV3bAKW/QjJAcR7UJOsdp?= =?us-ascii?Q?jGXaHi2H37uXz4zJ4j+myExm+y5xpLO4c83eu47jflAqiCixlEwe2r/ClBTY?= =?us-ascii?Q?xx9cbZ4SUoRq0RecmT5zvo5MweQqDvGltKUL89CN7aB9KewQsArdv9Nxizr7?= =?us-ascii?Q?buGoNhNzKQ/f+sG5xbSE+YmCjGIqgt4s9tX1SkgcFFdpchHnxvtKcfpfFWQB?= =?us-ascii?Q?noCACDSnz7QGl7TxYrz2KwEcXfuzUd6MjC+5aHg2glLx4zZ0cxdhcsoA/JgF?= =?us-ascii?Q?wuW7OA1OFGyV/RMzO/aiXJHNiogvd/l95VsDa+/GujtISxrTVPF1eY2b5NEf?= =?us-ascii?Q?/eYVmuJVrbnWI2YSuhWBl3uG5MWxu1+hnntXaCSrnBk1O/vN0389I7M/ZQGg?= =?us-ascii?Q?AtKKM2N94w/cPH7Mzf5CRtFuk7Qa+iHyNwQ3JMkx5F8SD9ALRzdINYEu7wJS?= =?us-ascii?Q?wtjZQDsZ6pX/f+LzxeoXaK9fH5rkIJ+mI4XOqjl8MnM6T5O3HGJ42X+q1oq0?= =?us-ascii?Q?oTxwWc+4lU/o6yDUDOiy0zEqrnBjewIgr9GkAXVG2DJ+0CzpF6BBgJtKXJVt?= =?us-ascii?Q?yT9YU+KSclu7Lw9WG5hrUtLZLx0QcSBX1dPcgJeyrNQLjXk49GMM6yIfDLUw?= =?us-ascii?Q?QasRzrQkNx5b5tedotUs9HKqOefeMDEE4MoQ15/Fnjb9Dve7gbXwu4uE0dR0?= =?us-ascii?Q?zwBG6bFMISojxfNr99XZQ0dxftHB/JjUrmLoZ3OllhiWNEpHwWO4l3lcvnC+?= =?us-ascii?Q?YNaALGy+7Bwn2vovVnSuao0yncQxuhPUXZtpe9z6jnYC3bjWYYl/aRAH3oQ3?= =?us-ascii?Q?XpaMh0cUPNHNQBc65BXESH/7xbGmp66OIxiwxPvmXonSFT3Dhz9/hS8RYtRv?= =?us-ascii?Q?7CBeVoSCgaFCUBud7gbt/Hu8ZF1P7pxTpBvCD0EEaDe11HRMQ7TMH6XZ3p9d?= =?us-ascii?Q?kkmefV8urIjDlDiJdOE41QuPu1geowPhAILv1xGulT3RagG2wi7DcamSN4vp?= =?us-ascii?Q?cQSY5rV9jKdroAGg2+bf5mCPzkRfDUWd8S7Nnvk3i0pfmmujwnTvRjYHT9qV?= =?us-ascii?Q?6GmrlP5mJdt31oBIMVW+wRDHIqQxvCcasPjUmXJWmBPpkVO5iZJcvAKtyLqg?= =?us-ascii?Q?1GJSCuLW4wTeSkbJIpijoVN1QfSHi7Of?= X-MS-Exchange-CrossTenant-Network-Message-Id: 1517f980-48bd-4345-45cd-08da0284f957 X-MS-Exchange-CrossTenant-AuthSource: DB7PR04MB4666.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: f7a17af6-1c5c-4a36-aa8b-f5be247aa4ba X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: T+V4QPIWFIhihIUYaqvvJMs2m6qSeAHLMuOExIVS3n2D2D7ysuBht64cnPKLkwK/JoPsvdUsmRBaIeHPVW3I7g== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS8PR04MB7766 X-ServerName: de-smtp-delivery-102.mimecast.com X-Proofpoint-SPF-Result: pass X-Proofpoint-SPF-Record: v=spf1 include:spf.suse.com include:de._netblocks.mimecast.com include:amazonses.com include:spf.protection.outlook.com include:_spf.qemailserver.com include:_spf.salesforce.com -all X-Spam: Clean X-Proofpoint-GUID: bUt9CF0ze2NdCmJ1gKMe9m_noF40zaK2 X-Proofpoint-ORIG-GUID: bUt9CF0ze2NdCmJ1gKMe9m_noF40zaK2 Reporting-Meta: AAG+mQfKmBO9aXmQ8wOFlhjxrSvkUuM80DZe/eiS01zeTodRZpFx52Yndet34cXy H8ceuRd9EzFkr7cmpI9X3mR36NYEeFbFeAoaFHikupGphUxfXAG3kHL6IAKqnuNV 7p6PhVezjpjmWvnxrg7dQkNY86bcS6ns/xWokWPU6cSmUnxdAaFuFNMIuAdUaJXs XMTOmTPtadYjhh8PLbFCxMdnwD1kPCeJB6y51LxLmbQDeWyupmaW46lI35ngrWuA Q5phqnympfqvJ9uSJA2rb8m68h/CZzyBCgiNDpfKgVqUMQla6Bh3pn7dw13Kg5Lh W85MmNmUbMbeRBFueiRjwIagaUIFb8ytR0OOJ/wjsPWGPyvWLf0koA9zaw2/wJ+F KwCAPJG1ySkfBRziIaqjI9Nyu88Nw04EmQgZ4xKl1hXp70RNhGkPAsvkPzitm6Vb 1PpFQwQPXCVHMYge4djNmFG9B0pJ/e5rhMYoRUe5LtJn/DQgLj/SzNCDFC7fvj7N RePIb4SRye4WfLAT77NeREaRJkuk05I/j+C4HQ7Vvun3 Call trace: ocfs2: Registered cluster interface user dlm: no local IP address has been set dlm: cannot start dlm lowcomms -107 (mount.ocfs2,2225,0):ocfs2_dlm_init:3355 ERROR: status = -107 (mount.ocfs2,2225,0):ocfs2_mount_volume:1817 ERROR: status = -107 (mount.ocfs2,2225,0):ocfs2_fill_super:1186 ERROR: status = -107 BUG: kernel NULL pointer dereference, address: 0000000000000030 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 0 PID: 2225 Comm: mount.ocfs2 Not tainted 5.16.2-1-default #1 openSUSE Tumbleweed b40...e84 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS ... RIP: 0010:ocfs2_clear_inode+0x2e9/0x720 [ocfs2] ... Call Trace: ? ocfs2_evict_inode+0x1fe/0x630 [ocfs2 411bc..281] evict+0xc0/0x1c0 ocfs2_release_system_inodes+0x21/0xc0 [ocfs2 411bc..281] ocfs2_dismount_volume+0x10b/0x2d0 [ocfs2 411bc..281] ocfs2_fill_super+0xaf/0x19e0 [ocfs2 411bc..281] mount_bdev+0x182/0x1b0 ? ocfs2_initialize_super.isra.0+0xf50/0xf50 [ocfs2 411bc..281] legacy_get_tree+0x24/0x40 vfs_get_tree+0x22/0xb0 path_mount+0x465/0xac0 __x64_sys_mount+0x103/0x140 do_syscall_64+0x59/0x80 ? syscall_exit_to_user_mode+0x18/0x40 ? do_syscall_64+0x69/0x80 ? syscall_exit_to_user_mode+0x18/0x40 ? do_syscall_64+0x69/0x80 ? exc_page_fault+0x68/0x150 entry_SYSCALL_64_after_hwframe+0x44/0xae How to trigger: tb-ocfs1 # dd if=/dev/zero of=/dev/vdb bs=1M count=20 oflag=direct tb-ocfs1 # mkfs.ocfs2 --cluster-stack=pcmk -N 4 /dev/vdb --cluster-name=ocfstst == there is no dlm running == tb-ocfs1 # mount -t ocfs2 /dev/vdb /mnt == kernel crash == Analysis: After commit da5e7c87827e8 ("ocfs2: cleanup journal init and shutdown"), Journal init later than before, it makes NULL pointer access in free routine. ocfs2_fill_super + ocfs2_mount_volume | ocfs2_dlm_init //failed, osb->journal still NULL. + ... + ocfs2_dismount_volume ocfs2_release_system_inodes ... evict ... ocfs2_clear_inode ocfs2_checkpoint_inode ocfs2_ci_fully_checkpointed time_after(journal->j_trans_id, ci->ci_last_trans) + journal is empty, crash! The fix should assess osb->journal before journal operation. And the fix should be only related with abnormal case before ocfs2_journal_init(). Fixes: da5e7c87827e8 ("ocfs2: cleanup journal init and shutdown") Signed-off-by: Heming Zhao --- v2: revise commit log add checking in ocfs2_dismount_volume() --- fs/ocfs2/inode.c | 3 ++- fs/ocfs2/journal.h | 2 +- fs/ocfs2/super.c | 7 ++++--- 3 files changed, 7 insertions(+), 5 deletions(-) diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c index 6c2411c2afcf..3826ab7eab3e 100644 --- a/fs/ocfs2/inode.c +++ b/fs/ocfs2/inode.c @@ -1205,7 +1205,8 @@ static void ocfs2_clear_inode(struct inode *inode) * the journal is flushed before journal shutdown. Thus it is safe to * have inodes get cleaned up after journal shutdown. */ - jbd2_journal_release_jbd_inode(osb->journal->j_journal, + if (osb->journal) + jbd2_journal_release_jbd_inode(osb->journal->j_journal, &oi->ip_jinode); } diff --git a/fs/ocfs2/journal.h b/fs/ocfs2/journal.h index 8dcb2f2cadbc..1610d49b4112 100644 --- a/fs/ocfs2/journal.h +++ b/fs/ocfs2/journal.h @@ -189,7 +189,7 @@ static inline void ocfs2_checkpoint_inode(struct inode *inode) { struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); - if (ocfs2_mount_local(osb)) + if (!osb->journal || ocfs2_mount_local(osb)) return; if (!ocfs2_ci_fully_checkpointed(INODE_CACHE(inode))) { diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index 2772dec9dcea..01f1ab7c8de8 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -1886,9 +1886,10 @@ static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err) /* Wait for worker to be done with the work structure in osb */ cancel_work_sync(&osb->dquot_drop_work); - ocfs2_shutdown_local_alloc(osb); - - ocfs2_truncate_log_shutdown(osb); + if (osb->journal) { + ocfs2_shutdown_local_alloc(osb); + ocfs2_truncate_log_shutdown(osb); + } /* This will disable recovery and flush any recovery work. */ ocfs2_recovery_exit(osb); -- 2.34.1 _______________________________________________ Ocfs2-devel mailing list Ocfs2-devel@oss.oracle.com https://oss.oracle.com/mailman/listinfo/ocfs2-devel