From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f197.google.com (mail-il1-f197.google.com [209.85.166.197]) (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 1F2BF1F5820 for ; Fri, 8 Nov 2024 15:57:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.197 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731081441; cv=none; b=EeyDZIpeBQQLZNNd91RUZ+LSk40hj9uJoijJgNuAlab+eporFwR+u0a17/YWSpVBSWZ61PMgIsoljjc3CI75q83cOyIAp7r8rudt4GZcV/ZiVroohM17nW6P8UCZWavPQsxukbxl279a8f+9/NK928hYsUjERbToRpQBauK1fzc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731081441; c=relaxed/simple; bh=uzKoC6b+OvrKWbR3YzIHa2s/k1vfUkV/CpnXUOonalE=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=Q4IkE5FEEx4sio5SN2fGSteTym17WaeB9H9JtY5jcsTzoNJkfROm4NYCNeqgs/IBYvfNAKkGNVIVQuCjagLOxpzocY73ZB2Qnu+G2xvtgnPjS9imXsmMIlyIA58lnRTNlp/UWlZzotFThcT/Ml9SCRFNzqktBMxRb7eul5s6Org= 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=209.85.166.197 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-il1-f197.google.com with SMTP id e9e14a558f8ab-3a6a9cb7efdso22897455ab.1 for ; Fri, 08 Nov 2024 07:57:19 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1731081439; x=1731686239; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=z92hq+mdvzIgj8A1Sm4l7qrUAdpf5cA/4n0IdFWGt1w=; b=rosoZZkGos5/OX8nmK4nY0ixe78dYBQudatdsYzHtVyHzvndEpHsBv8K6OPqCgAqo4 l1Ah2qLjW5npb0M0xzbQhb1Po9LWrpbO9W0c2FBL2qyOCwBU5ThfcScoIsWT0T7AXqVW C89l7sDkeEwLvE8Qya/YyZCQpbMB3+i5AL4ip9gHSbXLShW4BGA21FUbEVpQXEv4YQbM WcVHHFKiWiAKaBCvT89nXTKq4BaXi2I7lUefujAKNAeYTYj6BdiV1DR4IAsIZSWVbjpV 74z12uloqXG4B5AwzdTNilC80BkzUnfz9M+lH+lBOKxSTdAO5XctzWisddkiqQ9fDKFL umdw== X-Forwarded-Encrypted: i=1; AJvYcCWyQJl1pSCmzZDtSXGUS19+AOOWgAr1toe8Dpc23QaUGQ/kkAhxSA+k2vwc66g4rxbQgVik6pdF0jo6UzLo3A==@vger.kernel.org X-Gm-Message-State: AOJu0YzLGCoEL31wn8O93w4MqU2u8rwbZ4h0ZVYO8/8hnWrMnLh5PTCK GYmQaRHnDnlUc9o9UVbe/dlNzvn1D2evctD6DWNfy5Fz3r4E0c9sYiZ2BtFqUvysESjvKDH1Saq IlN1y5gdaCk9HfLel62MetLDO75xZDiBfbd9QEXvRBt1Z1WUGjEjyBsc= X-Google-Smtp-Source: AGHT+IFArS9nGKOfzFmGQTNfBWyi/ThY3w2I60LrhBVAhwGUTuFEn6xK92wtf9/WSdcvuOb/00WTDBRrtFFOQK4jqEghkYaAXQzh Precedence: bulk X-Mailing-List: linux-bcachefs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1c87:b0:3a6:c89d:4eb5 with SMTP id e9e14a558f8ab-3a6f1a22da5mr36540515ab.15.1731081439253; Fri, 08 Nov 2024 07:57:19 -0800 (PST) Date: Fri, 08 Nov 2024 07:57:19 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <672e34df.050a0220.69fce.001a.GAE@google.com> Subject: [syzbot] [bcachefs?] kernel BUG in bch2_rechecksum_bio 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: 59b723cd2adb Linux 6.12-rc6 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1693f630580000 kernel config: https://syzkaller.appspot.com/x/.config?x=11254d3590b16717 dashboard link: https://syzkaller.appspot.com/bug?extid=50d3544c9b8db9c99fd2 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=1391ad5f980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12e546a7980000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-59b723cd.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/6b98f620edf1/vmlinux-59b723cd.xz kernel image: https://storage.googleapis.com/syzbot-assets/b5d1377ba568/bzImage-59b723cd.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/4854d6cc2b6a/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+50d3544c9b8db9c99fd2@syzkaller.appspotmail.com ------------[ cut here ]------------ kernel BUG at fs/bcachefs/checksum.c:424! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5323 Comm: bch-rebalance/l Not tainted 6.12.0-rc6-syzkaller #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_rechecksum_bio+0x148c/0x14b0 fs/bcachefs/checksum.c:424 Code: 48 89 df e8 76 b9 d7 fd e9 4d f9 ff ff 89 f9 80 e1 07 38 c1 0f 8c 1c fd ff ff e8 4f ba d7 fd e9 12 fd ff ff e8 e5 f3 6d fd 90 <0f> 0b e8 dd f3 6d fd 90 0f 0b e8 d5 f3 6d fd 90 0f 0b e8 1d 50 a0 RSP: 0018:ffffc9000d186b20 EFLAGS: 00010293 RAX: ffffffff8426e67b RBX: 0000000000000007 RCX: ffff88801e00c880 RDX: 0000000000000000 RSI: 0000000000000018 RDI: 0000000000000008 RBP: ffffc9000d186e70 R08: ffffffff8426d688 R09: 0000000000000000 R10: ffffc9000d186d40 R11: fffff52001a30dae R12: 0000000000000018 R13: dffffc0000000000 R14: 0000000000000008 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055bb8ac5e0b8 CR3: 0000000011c00000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bch2_write_rechecksum fs/bcachefs/io_write.c:776 [inline] bch2_write_prep_encoded_data fs/bcachefs/io_write.c:877 [inline] bch2_write_extent fs/bcachefs/io_write.c:909 [inline] __bch2_write+0x2f7b/0x5dd0 fs/bcachefs/io_write.c:1461 bch2_write+0x9b5/0x1760 fs/bcachefs/io_write.c:1634 closure_queue include/linux/closure.h:270 [inline] closure_call include/linux/closure.h:432 [inline] bch2_data_update_read_done+0x22e/0x330 fs/bcachefs/data_update.c:426 move_write fs/bcachefs/move.c:133 [inline] bch2_moving_ctxt_do_pending_writes+0x44c/0x8d0 fs/bcachefs/move.c:164 bch2_moving_ctxt_flush_all+0x1c3/0x2f0 fs/bcachefs/move.c:179 do_rebalance fs/bcachefs/rebalance.c:379 [inline] bch2_rebalance_thread+0x1a87/0x1fc0 fs/bcachefs/rebalance.c:401 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bch2_rechecksum_bio+0x148c/0x14b0 fs/bcachefs/checksum.c:424 Code: 48 89 df e8 76 b9 d7 fd e9 4d f9 ff ff 89 f9 80 e1 07 38 c1 0f 8c 1c fd ff ff e8 4f ba d7 fd e9 12 fd ff ff e8 e5 f3 6d fd 90 <0f> 0b e8 dd f3 6d fd 90 0f 0b e8 d5 f3 6d fd 90 0f 0b e8 1d 50 a0 RSP: 0018:ffffc9000d186b20 EFLAGS: 00010293 RAX: ffffffff8426e67b RBX: 0000000000000007 RCX: ffff88801e00c880 RDX: 0000000000000000 RSI: 0000000000000018 RDI: 0000000000000008 RBP: ffffc9000d186e70 R08: ffffffff8426d688 R09: 0000000000000000 R10: ffffc9000d186d40 R11: fffff52001a30dae R12: 0000000000000018 R13: dffffc0000000000 R14: 0000000000000008 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbfaf9ff000 CR3: 000000001fb7e000 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