From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f70.google.com (mail-io1-f70.google.com [209.85.166.70]) (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 819A31B0F14 for ; Fri, 25 Oct 2024 06:49:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.70 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729838968; cv=none; b=AE+WG7FlPkjT0FMdaCjtwotESejzvt+uOFiFGq0PEJdIBsOzXSIKzrJNJ0Ul67QZ1+UGZzyEwyZJ6r0IZnsBMvkdzPqSkMSlBeDdc9iCVGO6kRGd5LCigG2T0fHdgR35rhXuOU2jSuFwO/XSwpEyEXrrtH2vHZWjvWGjzQKIPzA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729838968; c=relaxed/simple; bh=8OI7fKu4JN8SV9hH1JY0dB7+o5CBmigLV5JLhPHOtvk=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=JB8IhWaUoro9P421374tPWHK93bhOF4gseRSxDJ4ukCQorGRcNrA1bRTvWEJv0bbrOZQVZfWgEPXf0Vs+akBjHjd99lP8qMt5a2hhqG2cCp16+gC0YijYaOsswDC1VhFwBx9ok3Z8ZSzdq/nyYiwC4rwHO3uvsJKigieYrnobQ8= 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=209.85.166.70 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-f70.google.com with SMTP id ca18e2360f4ac-83aae46538bso161058739f.1 for ; Thu, 24 Oct 2024 23:49:26 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1729838965; x=1730443765; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=aEEym5pvVLpeSNzCyzbGPdwWKZHWd7ogh6bRqG2sb9w=; b=Zsn3AfR7xWIzvBouIrBaCnYCKgCbu++oZ6Wt9m964jVsYC+zvNmAfF+bwepgu89mDP KLErYjTSZqwkAK7Dzhm4+RsLF3jk81DSduCJmdHc4rx6atE64BCW9XV6MlBxCPlhs4ie 7ljygQEs2gGOJzM4mSwzFV/9KyymE1JidoWqtyEAAMqNEGFcFnp3UKw/cKYMsc2Xnafa DL+BCzHdkJCfFAkTxs6WMMMMUGcEm9X1wSn3XzaXLEyh9GME4WY31DBUutwhZ8TK6vfx C4ccE/IZLBELOS1B2ZpyIMM49azOH9/y7tEe6jSIHVvYOshuQ9jm/0viXM0HAC3dNVAu E4LQ== X-Forwarded-Encrypted: i=1; AJvYcCUiB8Rzr6ZAaVBci/0LDzFKJXF4siONZ0Kz3gDmqRMmBWMvkMvfL7uH+dg2QYtJwB5Y7uBnwr+CNu/wmvbS9w==@vger.kernel.org X-Gm-Message-State: AOJu0YzYHyXFLzjOvQfkgY0lxcxJD1OHCJY/eeoUmF1qWy9EplGEwkjv nsTW7NpbWGpK5NP8CJUFW0SckYQl3cDeUmuQmVkOdiE7I/HMYxf5Ql/pp1IK56C1gkjb+DBX5HP +vaKX7384Sak3fvR+McI5JUkW2Ly+agP6P3dm8GfMcPhgpJlVn4ZIiAE= X-Google-Smtp-Source: AGHT+IGeCOvlQPQVKjVm7g4uMIbVu9jmnYO7fa534FObxE5It0DQUAZW9bBK6kGeUmQDT9ucm5F3T8hpaYrcDx7+4Jp/a6ySQUgR Precedence: bulk X-Mailing-List: linux-bcachefs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6602:1414:b0:835:4d07:9d46 with SMTP id ca18e2360f4ac-83af6403645mr1091452539f.15.1729838965720; Thu, 24 Oct 2024 23:49:25 -0700 (PDT) Date: Thu, 24 Oct 2024 23:49:25 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <671b3f75.050a0220.2eb763.00d8.GAE@google.com> Subject: [syzbot] [bcachefs?] kernel BUG in bch2_trans_node_iter_init 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: c2ee9f594da8 KVM: selftests: Fix build on on non-x86 archi.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=109288a7980000 kernel config: https://syzkaller.appspot.com/x/.config?x=fc6f8ce8c5369043 dashboard link: https://syzkaller.appspot.com/bug?extid=b17df21b4d370f2dc330 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=178dd640580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=176b2a5f980000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-c2ee9f59.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/8a3541902b13/vmlinux-c2ee9f59.xz kernel image: https://storage.googleapis.com/syzbot-assets/a00efacc2604/bzImage-c2ee9f59.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/c3f485acb30c/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+b17df21b4d370f2dc330@syzkaller.appspotmail.com got: u64s 5 type deleted 0:8388608:0 len 0 ver 0 want: u64s 9 type backpointer 0:8388608:0 len 0 ver 0: bucket=0:32:0 btree=snapshots l=1 offset=0:0 len=256 pos=SPOS_MAX, fixing ------------[ cut here ]------------ kernel BUG at fs/bcachefs/btree_iter.c:2916! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5092 Comm: syz-executor289 Not tainted 6.12.0-rc4-syzkaller-00047-gc2ee9f594da8 #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:bch2_trans_node_iter_init+0x61d/0x630 fs/bcachefs/btree_iter.c:2916 Code: 89 d9 80 e1 07 fe c1 38 c1 0f 8c aa fd ff ff 48 89 df e8 46 5f e3 fd e9 9d fd ff ff e8 2c 9a 79 fd 90 0f 0b e8 24 9a 79 fd 90 <0f> 0b e8 1c 9a 79 fd 90 0f 0b e8 14 29 ab 07 0f 1f 40 00 90 90 90 RSP: 0018:ffffc9000b1e6020 EFLAGS: 00010293 RAX: ffffffff841b3dbc RBX: 0000000000000003 RCX: ffff88801ef8c880 RDX: 0000000000000000 RSI: 000000000000000b RDI: 0000000000000003 RBP: ffffc9000b1e6158 R08: ffffffff841b3b8b R09: ffffffffffffffff R10: ffffffffffffffff R11: ffffffffffffffff R12: dffffc0000000000 R13: 000000000000000b R14: 0000000000000000 R15: 0000000000000000 FS: 0000555558106380(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055d8cc97e028 CR3: 000000004113e000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bch2_backpointer_get_node+0x2c6/0x880 fs/bcachefs/backpointers.c:358 bch2_backpointer_get_key+0x61c/0x970 fs/bcachefs/backpointers.c:335 check_bp_exists fs/bcachefs/backpointers.c:579 [inline] check_extent_to_backpointers+0x21f9/0x46b0 fs/bcachefs/backpointers.c:683 check_btree_root_to_backpointers fs/bcachefs/backpointers.c:717 [inline] bch2_check_extents_to_backpointers_pass fs/bcachefs/backpointers.c:868 [inline] bch2_check_extents_to_backpointers+0xeb8/0x1bf0 fs/bcachefs/backpointers.c:932 bch2_run_recovery_pass+0xf0/0x1e0 fs/bcachefs/recovery_passes.c:185 bch2_run_recovery_passes+0x387/0x870 fs/bcachefs/recovery_passes.c:232 bch2_fs_recovery+0x25cc/0x39c0 fs/bcachefs/recovery.c:862 bch2_fs_start+0x356/0x5b0 fs/bcachefs/super.c:1036 bch2_fs_get_tree+0xd68/0x1710 fs/bcachefs/fs.c:2174 vfs_get_tree+0x90/0x2b0 fs/super.c:1800 do_new_mount+0x2be/0xb40 fs/namespace.c:3507 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4057 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4034 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: 0033:0x7ffaca565dba 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:00007ffd941c4cb8 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffd941c4cd0 RCX: 00007ffaca565dba RDX: 0000000020000040 RSI: 0000000020005900 RDI: 00007ffd941c4cd0 RBP: 0000000000000004 R08: 00007ffd941c4d10 R09: 002c647261637350 R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000000 R13: 00007ffd941c4d10 R14: 0000000000000003 R15: 0000000001000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bch2_trans_node_iter_init+0x61d/0x630 fs/bcachefs/btree_iter.c:2916 Code: 89 d9 80 e1 07 fe c1 38 c1 0f 8c aa fd ff ff 48 89 df e8 46 5f e3 fd e9 9d fd ff ff e8 2c 9a 79 fd 90 0f 0b e8 24 9a 79 fd 90 <0f> 0b e8 1c 9a 79 fd 90 0f 0b e8 14 29 ab 07 0f 1f 40 00 90 90 90 RSP: 0018:ffffc9000b1e6020 EFLAGS: 00010293 RAX: ffffffff841b3dbc RBX: 0000000000000003 RCX: ffff88801ef8c880 RDX: 0000000000000000 RSI: 000000000000000b RDI: 0000000000000003 RBP: ffffc9000b1e6158 R08: ffffffff841b3b8b R09: ffffffffffffffff R10: ffffffffffffffff R11: ffffffffffffffff R12: dffffc0000000000 R13: 000000000000000b R14: 0000000000000000 R15: 0000000000000000 FS: 0000555558106380(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055d8cc97e028 CR3: 000000004113e000 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