From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f80.google.com (mail-io1-f80.google.com [209.85.166.80]) (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 64A072063C1 for ; Sat, 25 Jan 2025 03:29:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.80 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737775768; cv=none; b=Wuf7YRVfLEUFHz3k3EG/FUwd2+LvYULqKLVRq3odKiTvfy3RXxlL3h5ibisrlV+jnUT1gG7oXR8a7fAzdrwdVHBkUYfcsMYPsPrd9sWkoeBgEq9e1oEvUN3a2JdeLF2pzom5ZJ2W9zsIvrb0igBbodxa7GgxrTRXvNGBnnkHKc4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737775768; c=relaxed/simple; bh=3CA6UsB5qUYNEHVDM63Y85h6dbiX8N1YbN0QdG6cxyk=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=WUAbAWyKZguIfCiBk0DPyGCK3NFQdhzUcBVr9qZHGKIeDBU1Zx+9Mmll8EU+ChGCHtW0NqWxpugtkKoZcP6QfIXrBlgsRCglXaBy0OYLSTvCHvBkBuVPGMUZkxND+DXmXuFwoo/OwLOGoFkWAwo6jD+A/uGVMGqaSLvJmSfCvaI= 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=209.85.166.80 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-f80.google.com with SMTP id ca18e2360f4ac-844eac513efso173977039f.2 for ; Fri, 24 Jan 2025 19:29:26 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1737775765; x=1738380565; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=9EAu5LWnTCvF1HwvNMZzGANl0vMt4L7dqbB2wjEiLaY=; b=WgMUN3w74Ko5EXWZQOpkxD1Fz8w21f8/Vjf5DkAdsSvpUTck9Q4V6NNCqgUKn4dxrm YrSooASbHQVMxQC26+QM7k8968bKRa5SwjgK6e+0t6AUkDoZxIS7yvotALSrb8EnRF8h 17Tny9IXkFqdBeh6AqL1/tQumqfd7+2AqlVmwvhBQmRyMHpCbEvIcPB72q0UlNlVJrdt eLCpGH2EwtCAYC3HmU3Q0zFG1gtaCQ0s8mz+jvmWnf7uewBFQMkjDYKTJI1oOoG7rkUk qXCkRkCAocuxuJUzRAtD/BCZweJLwrqPiIZuN89yg3zJr18yhiU0y31IokyZRcwMqw7v dqGQ== X-Forwarded-Encrypted: i=1; AJvYcCXRRnNDagyzohWJd4u+qEclRWiHy9O2Hs03aWHNKi1XudmikEzYKLxz6nIrW+uRAALdLVGFb6Ad4ffmESw=@vger.kernel.org X-Gm-Message-State: AOJu0Yw1sqJYaVlBUysM4p3FsW+DUngM9PL1op1VIzDL2eam2HHyxOpZ OXMO/Ak/AKJl9FmqsM9oXkNNJyxhq8EHbfy9fJBsP3T7U8c6CQF1dWFZnhwaJRKXs0u2QLGzUrl XCH7ruaBqU4LNHOqx1LEG5KmXfv630YKCGj8NkRuwauBI+ZZ+MFWNfk8= X-Google-Smtp-Source: AGHT+IGtOyjtr8ys+4TLqITBbTrY9EmN+Uy1ODZl2j9YME5soORkn8osapMgMXOvK69Nci75OiR/ItdOYx84bu7Me0ruU2Tptfgc Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:8d:b0:3cf:b9d3:95a7 with SMTP id e9e14a558f8ab-3cfb9d39641mr121514605ab.18.1737775765525; Fri, 24 Jan 2025 19:29:25 -0800 (PST) Date: Fri, 24 Jan 2025 19:29:25 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67945a95.050a0220.2eae65.0022.GAE@google.com> Subject: [syzbot] [bcachefs?] kernel BUG in bch2_run_recovery_pass (2) From: syzbot To: kent.overstreet@linux.dev, linux-bcachefs@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: 3d3a9c8b89d4 Merge tag 'dlm-6.14' of git://git.kernel.org/.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=120385df980000 kernel config: https://syzkaller.appspot.com/x/.config?x=88da85736adb8c92 dashboard link: https://syzkaller.appspot.com/bug?extid=3a290f5ff67ca3023834 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=12740ab0580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=157d5824580000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-3d3a9c8b.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/e3e59d52398c/vmlinux-3d3a9c8b.xz kernel image: https://storage.googleapis.com/syzbot-assets/2cd5680cc455/bzImage-3d3a9c8b.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/aaacc394b03b/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+3a290f5ff67ca3023834@syzkaller.appspotmail.com bcachefs (loop0): check_btree_backpointers... done bcachefs (loop0): check_backpointers_to_extents... done bcachefs (loop0): check_extents_to_backpointers... ------------[ cut here ]------------ kernel BUG at fs/bcachefs/backpointers.c:841! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5305 Comm: syz-executor396 Not tainted 6.13.0-syzkaller-00603-g3d3a9c8b89d4 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:data_type_to_alloc_counter fs/bcachefs/backpointers.c:841 [inline] RIP: 0010:check_bucket_backpointer_mismatch fs/bcachefs/backpointers.c:892 [inline] RIP: 0010:bch2_check_extents_to_backpointers+0x7320/0x7360 fs/bcachefs/backpointers.c:1087 Code: fd 90 0f 0b e8 d1 3a 89 fd 90 0f 0b e8 c9 3a 89 fd 90 0f 0b e8 c1 3a 89 fd 90 0f 0b e8 b9 3a 89 fd 90 0f 0b e8 b1 3a 89 fd 90 <0f> 0b e8 a9 3a 89 fd 90 0f 0b e8 a1 3a 89 fd 90 0f 0b e8 99 3a 89 RSP: 0018:ffffc9000d1c6480 EFLAGS: 00010293 RAX: ffffffff84164a4f RBX: 0000000000000000 RCX: ffff888000672440 RDX: 0000000000000000 RSI: ffffffff8ef38cb0 RDI: 0000000000000000 RBP: ffffc9000d1c7428 R08: 0000000000000001 R09: ffffffff8415ef86 R10: 0000000000000004 R11: ffff888000672440 R12: ffffc9000d1c70e0 R13: ffffc9000d1c72f0 R14: ffff888047d80162 R15: 0000000000000100 FS: 000055558d2d0380(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ae15764088 CR3: 000000003f042000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bch2_run_recovery_pass+0xf0/0x1e0 fs/bcachefs/recovery_passes.c:226 bch2_run_recovery_passes+0x2ad/0xa90 fs/bcachefs/recovery_passes.c:291 bch2_fs_recovery+0x265a/0x3de0 fs/bcachefs/recovery.c:937 bch2_fs_start+0x37c/0x610 fs/bcachefs/super.c:1030 bch2_fs_get_tree+0xd8d/0x1740 fs/bcachefs/fs.c:2203 vfs_get_tree+0x90/0x2b0 fs/super.c:1814 do_new_mount+0x2be/0xb40 fs/namespace.c:3560 do_mount fs/namespace.c:3900 [inline] __do_sys_mount fs/namespace.c:4111 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088 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: 0033:0x7fa8181a2b7a Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffdeb100318 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffdeb100330 RCX: 00007fa8181a2b7a RDX: 00000000200000c0 RSI: 00000000200001c0 RDI: 00007ffdeb100330 RBP: 0000000000000004 R08: 00007ffdeb100370 R09: 000000000000595a R10: 0000000000800000 R11: 0000000000000282 R12: 0000000000800000 R13: 00007ffdeb100370 R14: 0000000000000003 R15: 0000000001000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:data_type_to_alloc_counter fs/bcachefs/backpointers.c:841 [inline] RIP: 0010:check_bucket_backpointer_mismatch fs/bcachefs/backpointers.c:892 [inline] RIP: 0010:bch2_check_extents_to_backpointers+0x7320/0x7360 fs/bcachefs/backpointers.c:1087 Code: fd 90 0f 0b e8 d1 3a 89 fd 90 0f 0b e8 c9 3a 89 fd 90 0f 0b e8 c1 3a 89 fd 90 0f 0b e8 b9 3a 89 fd 90 0f 0b e8 b1 3a 89 fd 90 <0f> 0b e8 a9 3a 89 fd 90 0f 0b e8 a1 3a 89 fd 90 0f 0b e8 99 3a 89 RSP: 0018:ffffc9000d1c6480 EFLAGS: 00010293 RAX: ffffffff84164a4f RBX: 0000000000000000 RCX: ffff888000672440 RDX: 0000000000000000 RSI: ffffffff8ef38cb0 RDI: 0000000000000000 RBP: ffffc9000d1c7428 R08: 0000000000000001 R09: ffffffff8415ef86 R10: 0000000000000004 R11: ffff888000672440 R12: ffffc9000d1c70e0 R13: ffffc9000d1c72f0 R14: ffff888047d80162 R15: 0000000000000100 FS: 000055558d2d0380(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ae15764088 CR3: 000000003f042000 CR4: 0000000000352ef0 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 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