From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f80.google.com (mail-oo1-f80.google.com [209.85.161.80]) (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 195FB3E2ADD for ; Tue, 2 Jun 2026 14:13:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.80 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780409609; cv=none; b=oh5uDqxnqgPZGuqwwtp68jwN6QOjM7oInW/q0bPLKSgZ6vLFe20uekZhoou9GlKtgN0ELM9pcxXGztQtQaw4karEKLassD4G0LEm+Lv9GHEaWmKKoYPWYeeRrM3x/WC1G8YIKtCw0ABfhvzKg9kLofzQUimNzFtJTQNmklpG32o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780409609; c=relaxed/simple; bh=WbCFZnSi2FSNCAbvRDORd0PKY3Zm7kQTnqg+0Ks56+4=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=EWCSRblwLavSU/uA1vOp0fxmlEHAtydxspzlhcCz4pMhJyEF3zwpPuhPTASTz7ZOw4HsgqPPoTXHZqdpcBBE6VTOu6OZ+5rQro5zvBUycbBwXmRL0krjBGPBngW+M6xkNNYXFJoiE+BbBO95dkzYlDdIBklv3GBzYTXuFoSMljc= 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=209.85.161.80 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-oo1-f80.google.com with SMTP id 006d021491bc7-69d8e718acbso13062249eaf.1 for ; Tue, 02 Jun 2026 07:13:27 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1780409607; x=1781014407; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=Cj20YBJSdiyXTTx5MDb2PMmF3MBwkxjR6N7sz5j3VyM=; b=Ldp+skqSe4ecczI0xyW2REeC4pmMkWvap+4xJ0YLIdZLvL5NaBGdkm91ZJAtMt8jDT QJKtFCWm2xFJJxOkuyP2JMoYfs8i93hN9k3+BF09S/1cl9NQXsiomPQBiXZmuSj8W7f/ EiAvJjQZgWg55tmDwpP1sVYB5fOeFebg7qjx3MiviBKx7hL2ucgUtivMur/ykcut6uoi 8cgp2Je6RejNTRy8Hsb98D0UxqpK99/o4z8/OCAf4UVnYVv6+9rAg/l4mKpQzegOwi+8 uvGObz81aVP0K86dRRNRCvlTZrtcMoBbhM82UV194yCCGHZWav70AWeLK4/JTor+0jgp OvGw== X-Forwarded-Encrypted: i=1; AFNElJ8+6vq7GiHfenKPA7JaCUAY1z3yilMSQitMTv914XPQK/EHxWFRCZWXYWzqrx+RrmgQuy4AHLpV81ysdA==@vger.kernel.org X-Gm-Message-State: AOJu0YzW5AZBkyvhuF0dKGg7HzHZ/AxPn2QnqBz953RyFlRRKRqjKD6N zrZ7kSjTwpd/XZdQSBEMb5rV/CTM44V5RE0JgXq307bvImcMNjLswT9bgSxMegok0jsbtmpdB6Z u9bh4BpT+GnLpdgtElPZpZP178qPhQs7PSNKS3tYMFcqqh2dJbCA/FTrjxCE= Precedence: bulk X-Mailing-List: linux-btrfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:c87:b0:69d:b3af:c908 with SMTP id 006d021491bc7-69e1053e91bmr8296346eaf.35.1780409607123; Tue, 02 Jun 2026 07:13:27 -0700 (PDT) Date: Tue, 02 Jun 2026 07:13:27 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a1ee507.b4221f80.1326c5.0004.GAE@google.com> Subject: [syzbot] [btrfs?] WARNING in btrfs_add_delayed_iput (3) From: syzbot To: clm@fb.com, dsterba@suse.com, linux-btrfs@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: 8fde5d1d47f6 Merge tag 'acpi-7.1-rc6' of git://git.kernel... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=15af697e580000 kernel config: https://syzkaller.appspot.com/x/.config?x=bd38685893011045 dashboard link: https://syzkaller.appspot.com/bug?extid=6a843bf8604711c8fab0 compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/7e05a6204e66/disk-8fde5d1d.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/bc2122f096ea/vmlinux-8fde5d1d.xz kernel image: https://storage.googleapis.com/syzbot-assets/fa9b3cad3a6c/bzImage-8fde5d1d.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+6a843bf8604711c8fab0@syzkaller.appspotmail.com ------------[ cut here ]------------ test_bit(BTRFS_FS_STATE_NO_DELAYED_IPUT, &fs_info->fs_state) WARNING: fs/btrfs/inode.c:3596 at btrfs_add_delayed_iput+0x2e3/0x340 fs/btrfs/inode.c:3596, CPU#0: kworker/u8:10/1187 Modules linked in: CPU: 0 UID: 0 PID: 1187 Comm: kworker/u8:10 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Workqueue: btrfs-endio-write btrfs_work_helper RIP: 0010:btrfs_add_delayed_iput+0x2e3/0x340 fs/btrfs/inode.c:3596 Code: 53 a3 45 fe 48 8b 3b 48 83 c4 20 5b 41 5c 41 5d 41 5e 41 5f 5d e9 dd a4 ad fd e8 48 78 de fd e9 f8 fd ff ff e8 3e 78 de fd 90 <0f> 0b 90 e9 52 fe ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 84 RSP: 0018:ffffc900065d77c8 EFLAGS: 00010293 RAX: ffffffff83e5f502 RBX: ffff88805aba0000 RCX: ffff888029768000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed100b574497 R12: 0000000000000001 R13: dffffc0000000000 R14: ffff888061194788 R15: 0000000000000200 FS: 0000000000000000(0000) GS:ffff888126186000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe553a3f000 CR3: 00000000596c2000 CR4: 00000000003526f0 Call Trace: btrfs_put_ordered_extent+0x18f/0x430 fs/btrfs/ordered-data.c:629 btrfs_finish_one_ordered+0xf63/0x2680 fs/btrfs/inode.c:3433 btrfs_work_helper+0x38b/0xc20 fs/btrfs/async-thread.c:312 process_one_work kernel/workqueue.c:3314 [inline] process_scheduled_works+0xb5d/0x1860 kernel/workqueue.c:3397 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3478 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 --- 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