From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f208.google.com (mail-il1-f208.google.com [209.85.166.208]) (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 D1F6726CE04 for ; Thu, 21 Aug 2025 15:16:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.208 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755789390; cv=none; b=caJRjVg/vfxuwlGLKqUBhmrKB9P5bLK/iT2t+UrbEh5v8XXQygKtcMN83fykpjWqeBBIzcTXRJO/ODF6T25EXTfNQ427MvMWl5Aay8uxFmnfZRfysNQHyPOAPbNlb1ZF4J7odg3gg8MCeg1P5wy1GLO3p+fKKGUCttC4KFCWljU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755789390; c=relaxed/simple; bh=LNbjqvG7LJsRajT5yTZqU8haJdLm5LrGPihmKsKpR0Y=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=ICZdgD7JXm8lQVJYNAspl5zHZTsXdwAojYsYj9k0EnhwFXrYgyTwj0lManMI2WsGaZxeeq6pNJgFMJCxUhLTkAVmbFKNhRXS5Gx5gF1VrYOJvUqeUhL1HKn7Ie4y4HBIo6jR0k657ZsLNWg7u0ExbCXLZ8EtWB/Ra9K2m4zYnZ0= 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=209.85.166.208 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-f208.google.com with SMTP id e9e14a558f8ab-3e5d398a912so13108895ab.0 for ; Thu, 21 Aug 2025 08:16:28 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1755789388; x=1756394188; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=O92ULdLlOMhMBsZaIW/XrHMimBdSXPVNNUtybxQYuBg=; b=H3nC/4R5FNbL+oNUCq0q0+L9cSDrceS9EZy74lHwAuA7QSjjV517ycu5NzKKtehdvi mwpuY/t2MxEsRl+6JkPGzSld4gEY8uYF6tN1cGlHtoCjYvL2MfPBxUvPF3JDSB5XISYn MLpFF7KSEuEvQGxZSZg6eOxkT08ROdp0F+1I8ocAx8rXM0FVWAB7e+ODlFlxNuyT0APS d4BHZ41HXASMR4EpPO/JY6sKqh2idlc+Pl9JiytWA1OHtIEalCcl5LbiQAEKz03g8Asr vfXU8FqHn7zecfou0Cy0Z9BFZTr/+s/lwcFNoOOcrMad7bsyuaMqILlwBqiTbEa/jylW LzOQ== X-Forwarded-Encrypted: i=1; AJvYcCVv00FSSLkaKoLJGGDMAXDqNhqOdzFrm69nn8IvWc6QxJCUcHcDXomb9BHk9QmZYYgokysWyfMFn457kXs=@vger.kernel.org X-Gm-Message-State: AOJu0Yxt4ESuS91wZGj0HVTh2DguVxr18g5n6Xl9vYd52nf0TJ7FwKj4 hKwJSEOwv711xhxfxQ4ywPQTSBugVFTv3imO5EzIULLUXkt+hzjfJ8lizEz2E2wJwf656PZHZno CC3a2NFgYr7ZHu6HFF6T4/w5TpwnwJm8YXqEWcBUvVtosus/E63atINniHuE= X-Google-Smtp-Source: AGHT+IECnpZs4zeS7UU209W8Ab5lvMXkV/Aq4dr+bonM9fktxtF5NDv8N1aneoM3N0ll/hnX/Voa8+q6hOdwXfsrX4rxFNWTpHsP Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:17cc:b0:3e3:fe52:e576 with SMTP id e9e14a558f8ab-3e6d4630735mr44044905ab.9.1755789387910; Thu, 21 Aug 2025 08:16:27 -0700 (PDT) Date: Thu, 21 Aug 2025 08:16:27 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68a7384b.050a0220.3d78fd.002c.GAE@google.com> Subject: [syzbot] [btrfs?] WARNING in btrfs_put_transaction (4) From: syzbot To: clm@fb.com, dsterba@suse.com, josef@toxicpanda.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: 8f5ae30d69d7 Linux 6.17-rc1 git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci console output: https://syzkaller.appspot.com/x/log.txt?x=13792ba2580000 kernel config: https://syzkaller.appspot.com/x/.config?x=8c5ac3d8b8abfcb dashboard link: https://syzkaller.appspot.com/bug?extid=62f59a3655c0df0581cd compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 userspace arch: arm64 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/18a2e4bd0c4a/disk-8f5ae30d.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/3b5395881b25/vmlinux-8f5ae30d.xz kernel image: https://storage.googleapis.com/syzbot-assets/e875f4e3b7ff/Image-8f5ae30d.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+62f59a3655c0df0581cd@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7838 at fs/btrfs/transaction.c:144 btrfs_put_transaction+0x4b8/0x520 fs/btrfs/transaction.c:144 Modules linked in: CPU: 1 UID: 0 PID: 7838 Comm: btrfs-transacti Not tainted 6.17.0-rc1-syzkaller-g8f5ae30d69d7 #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : btrfs_put_transaction+0x4b8/0x520 fs/btrfs/transaction.c:144 lr : btrfs_put_transaction+0x4b8/0x520 fs/btrfs/transaction.c:144 sp : ffff8000b41a7a70 x29: ffff8000b41a7a80 x28: 1fffe0001f3374a0 x27: dfff800000000000 x26: ffff0000c621a000 x25: dfff800000000000 x24: 1fffe00018c43404 x23: ffff0000c621a000 x22: ffff0000f99b8d38 x21: 0000000000000001 x20: ffff0000c621a358 x19: ffff0000dfc5b2a4 x18: 00000000ffffffff x17: ffff800093507000 x16: ffff800080535980 x15: 0000000000000001 x14: 1fffe00018c43402 x13: 0000000000000000 x12: 0000000000000000 x11: ffff600018c43403 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000e01edb80 x7 : ffff80008235f5e4 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff800082358eec x2 : 0000000000000001 x1 : 0000000000000001 x0 : 0000000000000001 Call trace: btrfs_put_transaction+0x4b8/0x520 fs/btrfs/transaction.c:144 (P) btrfs_commit_transaction+0x1d24/0x2ce4 fs/btrfs/transaction.c:2583 transaction_kthread+0x200/0x430 fs/btrfs/disk-io.c:1592 kthread+0x5fc/0x75c kernel/kthread.c:463 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:844 irq event stamp: 123680 hardirqs last enabled at (123679): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (123679): [] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194 hardirqs last disabled at (123680): [] el1_brk64+0x1c/0x48 arch/arm64/kernel/entry-common.c:574 softirqs last enabled at (123658): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (123656): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- --- 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