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AJvYcCWH8YpWmBbdQ5QB+GET0dlugnsRkiMnB6s64cp7tEiV0TIsmo5mfwiXNMCCg1ZqGGOzlwNnBPmJ8O/X5Nh8f66thS1by9XL9Jx6lq23 X-Gm-Message-State: AOJu0Yy9iW+Uops5tLs9Iee4o/dZpsDNnMHWbXHM6h5dSkgKa5PWdmNP FlGu9zN7f+lpCpKtzChj2i0BisexqycA0RTfJA0zYs68Aaq6SB/vGJg8iX3cVxkWdlzPtugDP12 GS0RepbVPG0u9a8wF8GLgtC0Tyocl59h5npFdY/P1don6kaO08sTVW0I= X-Google-Smtp-Source: AGHT+IG4og3fb+C3yqMQ+4Xw0Xa/qCE8x/VzekrnWdH89BDUauyWaidy8toG/WBETYuc76ZaZT6qTZR4KgYLYtqfH+5/0qYPiO3R Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6638:238e:b0:4b0:7348:639 with SMTP id 8926c6da1cb9f-4b63b3e282fmr234487173.5.1717681083425; Thu, 06 Jun 2024 06:38:03 -0700 (PDT) Date: Thu, 06 Jun 2024 06:38:03 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000d0b6d3061a38ca59@google.com> Subject: Re: [syzbot] [gfs2?] WARNING: locking bug in gfs2_fill_super From: syzbot To: eadavis@qq.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hello, syzbot has tested the proposed patch but the reproducer is still triggering= an issue: WARNING: locking bug in gfs2_fill_super loop0: detected capacity change from 0 to 32768 gfs2: fsid=3D(=EF=BF=BD[{{{+: Trying to join cluster "lock_nolock", "(=EF= =BF=BD[{{{+" gfs2: fsid=3D(=EF=BF=BD[{{{+: Now mounting FS (format 0)... gfs2: fsid=3D(=EF=BF=BD[{{{+: can't read superblock: -22 ------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(1) WARNING: CPU: 0 PID: 5932 at kernel/locking/lockdep.c:233 hlock_class kerne= l/locking/lockdep.c:233 [inline] WARNING: CPU: 0 PID: 5932 at kernel/locking/lockdep.c:233 check_wait_contex= t kernel/locking/lockdep.c:4824 [inline] WARNING: CPU: 0 PID: 5932 at kernel/locking/lockdep.c:233 __lock_acquire+0x= 570/0x2000 kernel/locking/lockdep.c:5144 Modules linked in: CPU: 0 PID: 5932 Comm: syz-executor Not tainted 6.10.0-rc1-next-20240529-sy= zkaller-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Goo= gle 04/02/2024 RIP: 0010:hlock_class kernel/locking/lockdep.c:233 [inline] RIP: 0010:check_wait_context kernel/locking/lockdep.c:4824 [inline] RIP: 0010:__lock_acquire+0x570/0x2000 kernel/locking/lockdep.c:5144 Code: 00 00 83 3d 81 3e 3b 0e 00 75 23 90 48 c7 c7 e0 b9 ca 8b 48 c7 c6 80 = bc ca 8b e8 eb e3 e5 ff 48 ba 00 00 00 00 00 fc ff df 90 <0f> 0b 90 90 90 3= 1 db 48 81 c3 c4 00 00 00 48 89 d8 48 c1 e8 03 0f RSP: 0018:ffffc9000347f590 EFLAGS: 00010046 RAX: 05742692f5fa7200 RBX: 0000000000000881 RCX: ffff88807e1fbc00 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000005 R08: ffffffff81586802 R09: 1ffff1101728519a R10: dffffc0000000000 R11: ffffed101728519b R12: ffff88807e1fc728 R13: ffff88807e1fc6d8 R14: ffff88807e1fc6d8 R15: ffff88807e1fbc00 FS: 00007fcda487d6c0(0000) GS:ffff8880b9400000(0000) knlGS:000000000000000= 0 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ba9bc07131 CR3: 000000006858c000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5817 touch_wq_lockdep_map kernel/workqueue.c:3895 [inline] __flush_workqueue+0x1c9/0x1710 kernel/workqueue.c:3937 gfs2_fill_super+0x1298/0x2530 fs/gfs2/ops_fstype.c:1311 get_tree_bdev+0x3f7/0x570 fs/super.c:1615 gfs2_get_tree+0x54/0x220 fs/gfs2/ops_fstype.c:1331 vfs_get_tree+0x90/0x2a0 fs/super.c:1780 do_new_mount+0x2be/0xb40 fs/namespace.c:3352 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3875 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fcda3a7e5ea Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 = 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff f= f 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fcda487cef8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fcda487cf80 RCX: 00007fcda3a7e5ea RDX: 0000000020000000 RSI: 00000000200001c0 RDI: 00007fcda487cf40 RBP: 0000000020000000 R08: 00007fcda487cf80 R09: 0000000000008c1b R10: 0000000000008c1b R11: 0000000000000246 R12: 00000000200001c0 R13: 00007fcda487cf40 R14: 000000000001279b R15: 0000000020000040 Tested on: commit: 9d99040b Add linux-next specific files for 20240529 git tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-= next.git console output: https://syzkaller.appspot.com/x/log.txt?x=3D15541096980000 kernel config: https://syzkaller.appspot.com/x/.config?x=3D735e953fee00ec1= 9 dashboard link: https://syzkaller.appspot.com/bug?extid=3Dee157488ade46c021= ef4 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debia= n) 2.40 patch: https://syzkaller.appspot.com/x/patch.diff?x=3D16a4bfd69800= 00