From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) (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 41A7126B2C8 for ; Tue, 28 Oct 2025 15:04:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.198 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761663847; cv=none; b=U6UQQ+GXu4o0ZBBMucCAf8WzkEXBhZcUr2HJE4Z6//J1ta4PUwDFUhr0knEO2F9wmN8JDaTbDJm1Gt9voRECv7p6njz1wx5dfPHhFtPcmq+0dunvCyJcgc3j24gpjFCvMy/iUGU5GTBUw8oJahnafuUdQ1Hsqflq2jlkwBWo/NU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761663847; c=relaxed/simple; bh=YHNJ3+2Bl0kXz1AE7uKw8z2pj21d9oEcl/qcI/UkoCc=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=GEQkEpzoUo91vcW3xeMrDj3H9kltlFUi5m2wnWwb4x/vj8dg+hLRC/rA/TxKa2uEqcC5emn4LCeCYiCF0LWW/MqaGmsamW81GHZOgkGJOAtgqEj0DBYP0SF2b0n84x2m7TvXtMc5MocLGRxBRak6dzqewy1oZm+v8c9HI+AKExQ= 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=209.85.166.198 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-f198.google.com with SMTP id e9e14a558f8ab-430d4a4dec5so231545615ab.1 for ; Tue, 28 Oct 2025 08:04:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1761663843; x=1762268643; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=2WbENtpIuxc4z77nqKLhall3y31i7mXKp7vtElyIPCA=; b=dN+c3GWaon1K6X69Z+XUTUziV+tdwd6zPJVSM7lGCJkyYIOwJbs/UZru//9aFerRaX v1EWKiZiHr8D5q2OezibsdY6AI1CjHVl8/5jJpEcWq/4+f+mHG9jeV7uo+9fjlWqRHEo EVb1a6BGVT50OKP4/RXQfdVj3bjvQBMyVNzTjoU8iPLrNW+qxomSy8u5U+jiSnGTEVs7 ej64Y1vc8bX+GqXW2nANLpL/21xyhdVhevi492t3ZWHLRedBJWAPxBYGOaI3XQiybSWJ 7H/S1diBnraq/ygzkkSJKWc99nO1vd1haym/l5unkSUKRvmzxG/HwzpWegbtR6prTqLz 037A== X-Forwarded-Encrypted: i=1; AJvYcCXw68SwDBuBv//RFtSv1X1hVF5bux9RRwAMlQ9et9BSsKsFovZrH1NoY/YNIIN0MuuHDgXxLCg=@vger.kernel.org X-Gm-Message-State: AOJu0YwROfJOCvmrjjqTxbODXXS+l0Oaw3XWWRWTStEEgKkltQ49VSu9 JJe3Pz/rhMqHAEa/jxue2yrTX/UFxzf7aQjkBDbWW3sHs30NvqotPFiGZ12MVhJxY+d+lKf2gBG uPui3aVvweBpCqEa/rycArgTXjRXYL+iS+Dnkr58BZKVB0DmjE7UhWUVup0c= X-Google-Smtp-Source: AGHT+IF+EohZbBrSDQXXa4N4mZZlU7T6UimJk72y+wdqPoE4ji9fLb3tKUW2m3rfuTPzLylKbckQOUKWRw9X7p6OZ45VrZPr0uoA Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:b4f:b0:431:d763:193a with SMTP id e9e14a558f8ab-4320f8388e4mr49779265ab.21.1761663843270; Tue, 28 Oct 2025 08:04:03 -0700 (PDT) Date: Tue, 28 Oct 2025 08:04:03 -0700 In-Reply-To: <6890f71a.050a0220.7f033.0010.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6900db63.050a0220.17b81f.0026.GAE@google.com> Subject: Re: [syzbot] [kernfs?] possible deadlock in kernfs_remove From: syzbot To: axboe@kernel.dk, eadavis@qq.com, gregkh@linuxfoundation.org, hdanton@sina.com, linux-kernel@vger.kernel.org, ming.lei@redhat.com, netdev@vger.kernel.org, nilay@linux.ibm.com, sunjunchao2870@gmail.com, sunjunchao@bytedance.com, syzkaller-bugs@googlegroups.com, tj@kernel.org, yukuai3@huawei.com Content-Type: text/plain; charset="UTF-8" syzbot suspects this issue was fixed by commit: commit 8f5845e0743bf3512b71b3cb8afe06c192d6acc4 Author: Julian Sun Date: Tue Aug 12 15:42:57 2025 +0000 block: restore default wbt enablement bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13b977e2580000 start commit: 759dfc7d04ba netlink: avoid infinite retry looping in netl.. git tree: net kernel config: https://syzkaller.appspot.com/x/.config?x=ac0888b9ad46cd69 dashboard link: https://syzkaller.appspot.com/bug?extid=2d7d0fbb5fb979113ff3 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1136d9bc580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1536d9bc580000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: block: restore default wbt enablement For information about bisection process see: https://goo.gl/tpsmEJ#bisection