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NUM blocks leaked. Please unmount and run xfs_repair. (2) From: syzbot To: allison.henderson@oracle.com, amir73il@gmail.com, cem@kernel.org, darrick.wong@oracle.com, dchinner@redhat.com, hch@lst.de, hsiangkao@redhat.com, linux-kernel@vger.kernel.org, linux-xfs@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: e48e99b6edf4 Merge tag 'pull-fixes' of git://git.kernel.or.. git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=12b18be4580000 kernel config: https://syzkaller.appspot.com/x/.config?x=695196aa2bd08d99 dashboard link: https://syzkaller.appspot.com/bug?extid=e0e774741360f6c74414 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11aea7cf980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1727c94c580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/bacf2069a3a3/disk-e48e99b6.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/6b2b20d05f13/vmlinux-e48e99b6.xz kernel image: https://storage.googleapis.com/syzbot-assets/a5ab8f6aba17/bzImage-e48e99b6.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/635c0241b9a9/mount_0.gz fsck result: failed (log: https://syzkaller.appspot.com/x/fsck.log?x=1327c94c580000) The issue was bisected to: commit 29887a22713192509cfc6068ea3b200cdb8856da Author: Darrick J. Wong Date: Mon Aug 17 17:00:01 2020 +0000 xfs: enable big timestamps bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16ceafb0580000 final oops: https://syzkaller.appspot.com/x/report.txt?x=15ceafb0580000 console output: https://syzkaller.appspot.com/x/log.txt?x=11ceafb0580000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+e0e774741360f6c74414@syzkaller.appspotmail.com Fixes: 29887a227131 ("xfs: enable big timestamps") XFS (loop0): Mounting V5 Filesystem d7dc424e-7990-42cb-9f91-9cb7200a101d XFS (loop0): Ending clean mount XFS (loop0): WARNING: Reset corrupted AGFL on AG 0. 1 blocks leaked. Please unmount and run xfs_repair. XFS (loop0): Unmounting Filesystem d7dc424e-7990-42cb-9f91-9cb7200a101d --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. For information about bisection process see: https://goo.gl/tpsmEJ#bisection If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup