From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) (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 07732BA50 for ; Fri, 4 Apr 2025 01:44:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.71 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743731044; cv=none; b=i1bUVak7FV9qS2Je1y0rbcbLXfrsD/UdEBG123lVLg8mv+vDaDmRCSaUmajKNS4ZiBvxxJg5c3Z1gvcGmBB3Z9Hxti0eHJacZV34r4Na3mj6vHsaTWfViu28DlZCugqeUAuleD6kd2g2SscTGAk1fqK7Cyf+kk8cqzDxIlEFVAo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743731044; c=relaxed/simple; bh=A393Gx2pK/Ku/cFvRGlnYxqYTsuIduB+8xOBy8MxwTQ=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=uR2MQ6CV7netauEpoM6ggWuFhynBxZtbWlo6qqdWI95rU7ujgLOny8p5lNSVn+SuY8oWPxXdcYr9/Wrl4gWXVeEXuMlpRbdFRLNRQYVhkrz4ytZt8Rvd39cPNSSwTlvAKdzTTE753dC7Sgvy9YACQgOFaAfmPdQbVW6Vq9mNRg8= 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=209.85.166.71 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-f71.google.com with SMTP id ca18e2360f4ac-85b4dc23f03so339413139f.1 for ; Thu, 03 Apr 2025 18:44:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1743731042; x=1744335842; 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=DoiImokpJQCJ328qckmZBvIfg+4Z/tOC/nua1/PJ5gI=; b=aYSo33mAlvprOUKEOq2cku1ltHuqOoLqzNk2zTc8DGVDpPqGFKAn9gQrLmAy19mpeH EqMnOveKouhiY21Ob5Ezpad1x0U+/GMApgnKnsEWgfySG1kUnMmCnDj8ejaQHPm6wtZN gxAphjVhefPzGKAXY0tsVUP08BoxAo1JlEydYPTRs+MyAuMF1aWOd2ejPaA8LYVy2fzg tKkdHfZJ8lss4YjEaefjhFu6AgYfmM9UwnTyWcnPe7kjHogkK67K1kmIzr2XqDNNGBnt nJJtakoHA9Mc/GvBMTR9h91PXckbos6Ju7bq4LM4B1xobDY5R4TdLiUzqc3rDY5asKaL 0K6A== X-Forwarded-Encrypted: i=1; AJvYcCVkt6imknG779Xw2I3Upsl+vgdPE4TiQW5ZXj+oUQu4cuVXt5mWe1n5GXwaPXisYLv0Z3y8Kqatpn7lcUjFtcc=@vger.kernel.org X-Gm-Message-State: AOJu0YwgpsBoYkgOCWVcOeiDdbK+0HkU3v+gV70PtQ1P/gAkRL00Ruce huFwm+xD1bTDZdXPn0PyDu5ekS17uoAOrFOIDYb5qYTTvld0amSzmtocl4APCOEFDAFSuxBHRGe 8ivBYoOts7UBAHQ/nn2rg/kKt+UmDGFMDCmizvqz750Bh87MX2h3J28c= X-Google-Smtp-Source: AGHT+IF7DJ2NzSfVkrdjsOZO3G1uAps/3BIEHQP77pCq+DcF1yaZ6jYdc/l+/2JmYgNrMsrkgcIl6UsXPJNj5ujFtW+EBSIWW2Kq Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a92:cda7:0:b0:3d4:6e2f:b493 with SMTP id e9e14a558f8ab-3d6e3f19ebfmr17080835ab.11.1743731042233; Thu, 03 Apr 2025 18:44:02 -0700 (PDT) Date: Thu, 03 Apr 2025 18:44:02 -0700 In-Reply-To: <20250404011510.3744-1-hdanton@sina.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67ef3962.050a0220.9040b.02b9.GAE@google.com> Subject: Re: [syzbot] [bluetooth?] possible deadlock in l2cap_conn_del From: syzbot To: dan.carpenter@linaro.org, hdanton@sina.com, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, luiz.dentz@gmail.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: unregister_netdevice: waiting for DEV to become free unregister_netdevice: waiting for batadv0 to become free. Usage count = 3 Tested on: commit: 06a22366 Merge tag 'v6.15rc-part2-ksmbd-server-fixes' .. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=110c194c580000 kernel config: https://syzkaller.appspot.com/x/.config?x=2f0adb9bdfa87dbd dashboard link: https://syzkaller.appspot.com/bug?extid=b71bb48c13bf3fed3692 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 patch: https://syzkaller.appspot.com/x/patch.diff?x=172e023f980000