From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 74AC557CB7 for ; Fri, 3 May 2024 14:35:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.71 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714746937; cv=none; b=dKKSFS21MJ9jBrZ923Jv5kOx0Y5JLWMxxRpVANqDKBa6642PUwY3yf2duxL025RQa4JnEsGpPdANNjK45VldDXtQisuXXtDQMC5QZ97rYkG1qgNhY1fVaZ5y15ZwblGx53znwmczEGVikXUFd83rHZSKIxGUd6W7sz7UCy+sg2g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714746937; c=relaxed/simple; bh=yK+HmaarnvnvCHkS1/wSzitkQqFqROclDtGthsi5u64=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=m3vBKaxLQNGJOgiZIpuxn7qOKaaifD1qCwQrbovCcm+jSkSafdRZ0bGABAoU+Yor//Yts3eUyiJLIzgO/zkabZMSrRrRXv0nHgiEe81wZKxfvC8rnnpWbM0PQdiaDY2d6zmLc+h1LreDtNRYqCPWntpdrCuAzRhu8qFvyvQkhxE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.71 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-io1-f71.google.com with SMTP id ca18e2360f4ac-7dec39bc0a4so641189439f.1 for ; Fri, 03 May 2024 07:35:36 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1714746935; x=1715351735; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=Shds5y9GN65EnNnI1KXw4yFHWwuEW0+FXwBNWOytN00=; b=NppjiXy0kZlbbIMquSpj7ZeETIVu+YiBDIqbbpIv4yGV/9fZHRzEWh16cMa3CyEaao ktFvfRmDT8rdCnmQF58PDC2UEVj59b49k8kN45BDubO8Ec8/ceVZg5VMBz/WRblS7RBu sXMOMyeCANypKt1z5OR6PeRMOcPPuD4YfIhGDbXFOEDb0OmnFfuxvXjOTMRX90/g88Rz eMcRJ1XAPeqr/8QwOUsF+P08SnBMpseYHkiW+3AeApckMv6FQqCxmnsv4xuTN+lvreuq EbRdcPFLQP4c4WPITPumQ97qvG7kBKR303Vw2LWvRuX3H2+wbsfDdh7ae/wZoL6e1VGQ 2XUg== X-Forwarded-Encrypted: i=1; AJvYcCUAQkYqBDwP5o/ckoyrA00xM/AxEuFHGh8JrGmU54MLMaH454wWAIYDzjUN7P9AXGencLAVJ2iHCBmvc4vrNilZSvhkMjHYQw9Oqi6C X-Gm-Message-State: AOJu0Yz1LoTagMd854kkAiSojf+zDPoPCU34nKZPbG0vupeATXJJ4BDk F8oYfMftL8BiKid6lfSZ8kKwLXAzdglscqu/f72zHmtr1vbXraefzkXDKLIH3OIHGprx9jQKxOL kN52s2RZrvcgqNCraUa9xAXu3YDsA/xoJ8Rh542MdzAtGSJXTsdclz/g= X-Google-Smtp-Source: AGHT+IE3CXYHa1nNsyaOt+NVNE7Hzve+xg0r8cdEmnh0+OC87j8rNRSO8IqjLoRZuVErIo6E8xiFr1F54lEtzHNUkL3ke353gmkk Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6638:31c9:b0:487:cc0:9c05 with SMTP id n9-20020a05663831c900b004870cc09c05mr100463jav.2.1714746935428; Fri, 03 May 2024 07:35:35 -0700 (PDT) Date: Fri, 03 May 2024 07:35:35 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000f75b4906178da124@google.com> Subject: [syzbot] [bcachefs?] kernel BUG in bch2_btree_node_read_done From: syzbot To: bfoster@redhat.com, kent.overstreet@linux.dev, linux-bcachefs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 9221b2819b8a Add linux-next specific files for 20240503 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=1582ab54980000 kernel config: https://syzkaller.appspot.com/x/.config?x=8ab537f51a6a0d98 dashboard link: https://syzkaller.appspot.com/bug?extid=bf7215c0525098e7747a compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/3e67dbdc3c37/disk-9221b281.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/ade618fa19f8/vmlinux-9221b281.xz kernel image: https://storage.googleapis.com/syzbot-assets/df12e5073c97/bzImage-9221b281.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+bf7215c0525098e7747a@syzkaller.appspotmail.com bcachefs (loop2): mounting version 1.7: mi_btree_bitmap opts=metadata_checksum=crc64,data_checksum=none,nojournal_transaction_names bcachefs (loop2): recovering from clean shutdown, journal seq 10 ------------[ cut here ]------------ kernel BUG at fs/bcachefs/backpointers.h:75! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 PID: 10734 Comm: syz-executor.2 Not tainted 6.9.0-rc6-next-20240503-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:bucket_pos_to_bp fs/bcachefs/backpointers.h:75 [inline] RIP: 0010:bch2_backpointer_invalid+0x9cc/0x9d0 fs/bcachefs/backpointers.c:65 Code: fc ff ff e8 f6 19 8d fd 48 c7 c7 40 7f 91 8e 48 89 de e8 87 e9 e2 00 e9 fc f7 ff ff e8 dd 19 8d fd 90 0f 0b e8 d5 19 8d fd 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 53 e8 RSP: 0018:ffffc900040f6600 EFLAGS: 00010246 RAX: ffffffff8408fc0b RBX: 00000000002d3cb6 RCX: 0000000000040000 RDX: ffffc9000b24a000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: 000000b4f2d90000 R08: ffffffff8408f5aa R09: 1ffffffff25f54b0 R10: dffffc0000000000 R11: fffffbfff25f54b1 R12: 1ffff9200081ed58 R13: ffffc900040f6aa0 R14: ffff8880533a00bb R15: 000000000000001b FS: 00007fa2e10d16c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020001100 CR3: 0000000017ee0000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bch2_btree_node_read_done+0x3e7d/0x5ed0 fs/bcachefs/btree_io.c:1234 btree_node_read_work+0x665/0x1300 fs/bcachefs/btree_io.c:1345 bch2_btree_node_read+0x2637/0x2c80 fs/bcachefs/btree_io.c:1730 __bch2_btree_root_read fs/bcachefs/btree_io.c:1769 [inline] bch2_btree_root_read+0x61e/0x970 fs/bcachefs/btree_io.c:1793 read_btree_roots+0x22d/0x7b0 fs/bcachefs/recovery.c:472 bch2_fs_recovery+0x2334/0x36e0 fs/bcachefs/recovery.c:800 bch2_fs_start+0x356/0x5b0 fs/bcachefs/super.c:1030 bch2_fs_open+0xa8d/0xdf0 fs/bcachefs/super.c:2105 bch2_mount+0x71d/0x1320 fs/bcachefs/fs.c:1917 legacy_get_tree+0xee/0x190 fs/fs_context.c:662 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+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa2e027f42a 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 ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fa2e10d0ef8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fa2e10d0f80 RCX: 00007fa2e027f42a RDX: 0000000020011a00 RSI: 0000000020011a40 RDI: 00007fa2e10d0f40 RBP: 0000000020011a00 R08: 00007fa2e10d0f80 R09: 0000000002000000 R10: 0000000002000000 R11: 0000000000000202 R12: 0000000020011a40 R13: 00007fa2e10d0f40 R14: 00000000000119fd R15: 00000000200000c0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bucket_pos_to_bp fs/bcachefs/backpointers.h:75 [inline] RIP: 0010:bch2_backpointer_invalid+0x9cc/0x9d0 fs/bcachefs/backpointers.c:65 Code: fc ff ff e8 f6 19 8d fd 48 c7 c7 40 7f 91 8e 48 89 de e8 87 e9 e2 00 e9 fc f7 ff ff e8 dd 19 8d fd 90 0f 0b e8 d5 19 8d fd 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 53 e8 RSP: 0018:ffffc900040f6600 EFLAGS: 00010246 RAX: ffffffff8408fc0b RBX: 00000000002d3cb6 RCX: 0000000000040000 RDX: ffffc9000b24a000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: 000000b4f2d90000 R08: ffffffff8408f5aa R09: 1ffffffff25f54b0 R10: dffffc0000000000 R11: fffffbfff25f54b1 R12: 1ffff9200081ed58 R13: ffffc900040f6aa0 R14: ffff8880533a00bb R15: 000000000000001b FS: 00007fa2e10d16c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb51ae7fc00 CR3: 0000000017ee0000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- 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. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title 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