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 318A5C4332F for ; Fri, 16 Dec 2022 07:53:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229875AbiLPHxa (ORCPT ); Fri, 16 Dec 2022 02:53:30 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56962 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229469AbiLPHx2 (ORCPT ); Fri, 16 Dec 2022 02:53:28 -0500 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 20B0C20986 for ; Thu, 15 Dec 2022 23:53:27 -0800 (PST) Received: by mail-io1-f71.google.com with SMTP id r25-20020a6bfc19000000b006e002cb217fso1022002ioh.2 for ; Thu, 15 Dec 2022 23:53:27 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=WhcDqMiG4ZK6gbccHslwH85L4eFPa5Yfo+DfYrRRhuc=; b=zPn/qV1SNV1Q1IkcnRHIO/9EQQHDbAOkHJn5QZzZMuzYtRZtSiH/BGWRqvCR91ywsh d0RgZRWLFlbeGXuvIUfCtXXZjvUKSyb6VIt4f2GlaFYTbSZ8eexeRI9iHe60f8j47jY3 X6T+KyWkMKo0GA5hKJyufxeVcHNE0bLHJdYt/xjns+zZ7MmPPC8mPM8+B+pB+UbVq3Fz bV2jXq3zeWgsftGqlNqfOX/01hs5maUuXjCYhz5HLQZnLGWCyEBYd9yHVRWQz3Wj7wuO IrZbzGi2NhGPQcx+OPWh0ZP5XnL4EcyfTnZp5z/QraKvlfC1hFsU3caLJtcp2norxJyC umzA== X-Gm-Message-State: ANoB5pkbQLVlqne4ZypuoZu7aHw+eRac4/3EYUEPuTOO8t6qPhS7Ujem pC+Ihp0KcsnNa77gVimsKn6zNVDpY2bFWEFfiSEppKb+fYFS X-Google-Smtp-Source: AA0mqf7kiSq/CkPtA4+A8AzfTiY4e11uaWwphHRD+7AudPTMf1A//RDe3z7r9GZ8P+6SttJu7LLI5QeYmQjiEamkpWtaQD/yGGf3 MIME-Version: 1.0 X-Received: by 2002:a05:6e02:cae:b0:302:edb1:6f9 with SMTP id 14-20020a056e020cae00b00302edb106f9mr20777161ilg.23.1671177206438; Thu, 15 Dec 2022 23:53:26 -0800 (PST) Date: Thu, 15 Dec 2022 23:53:26 -0800 In-Reply-To: <20221215235133.1097-1-hdanton@sina.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000bf24a905efed43b0@google.com> Subject: Re: [syzbot] WARNING in do_mkdirat From: syzbot To: hdanton@sina.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: WARNING in do_mkdirat ------------[ cut here ]------------ DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff888075e8e310, owner = 0x0, curr 0xffff8880264b8000, list empty WARNING: CPU: 0 PID: 6864 at kernel/locking/rwsem.c:1361 __up_write kernel/locking/rwsem.c:1360 [inline] WARNING: CPU: 0 PID: 6864 at kernel/locking/rwsem.c:1361 up_write+0x4f9/0x580 kernel/locking/rwsem.c:1615 Modules linked in: CPU: 1 PID: 6864 Comm: syz-executor.0 Not tainted 6.1.0-syzkaller-11674-g84e57d292203-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:__up_write kernel/locking/rwsem.c:1360 [inline] RIP: 0010:up_write+0x4f9/0x580 kernel/locking/rwsem.c:1615 Code: c7 a0 ab ed 8a 48 c7 c6 40 ae ed 8a 48 8b 54 24 28 48 8b 4c 24 18 4d 89 e0 4c 8b 4c 24 30 31 c0 53 e8 fb 5b e8 ff 48 83 c4 08 <0f> 0b e9 6b fd ff ff 48 c7 c1 58 c4 96 8e 80 e1 07 80 c1 03 38 c1 RSP: 0018:ffffc90003a07d40 EFLAGS: 00010292 RAX: 6d7329e6d3b7db00 RBX: ffffffff8aedac80 RCX: ffff8880264b8000 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc90003a07e10 R08: ffffffff816f274d R09: fffff52000740f61 R10: fffff52000740f61 R11: 1ffff92000740f60 R12: 0000000000000000 R13: ffff888075e8e310 R14: 1ffff92000740fb0 R15: dffffc0000000000 FS: 00007f0ff93ff700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0ff9421000 CR3: 0000000028be2000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inode_unlock include/linux/fs.h:761 [inline] done_path_create fs/namei.c:3857 [inline] do_mkdirat+0x2c0/0x530 fs/namei.c:4064 __do_sys_mkdirat fs/namei.c:4076 [inline] __se_sys_mkdirat fs/namei.c:4074 [inline] __x64_sys_mkdirat+0x85/0x90 fs/namei.c:4074 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f0ff868c0d9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0ff93ff168 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00007f0ff87ac050 RCX: 00007f0ff868c0d9 RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000004 RBP: 00007f0ff86e7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc260c3b4f R14: 00007f0ff93ff300 R15: 0000000000022000 Tested on: commit: 84e57d29 Merge tag 'exfat-for-6.2-rc1' of git://git.ke.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master console output: https://syzkaller.appspot.com/x/log.txt?x=10f17063880000 kernel config: https://syzkaller.appspot.com/x/.config?x=b427d4cd32f6b2b dashboard link: https://syzkaller.appspot.com/bug?extid=919c5a9be8433b8bf201 compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 patch: https://syzkaller.appspot.com/x/patch.diff?x=15617063880000