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 E23ED625 for ; Sun, 1 Dec 2024 00:11:03 +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=1733011865; cv=none; b=X+lh3u03zzOQrcRQvddzUx/r03//VBvsVKHUXuT0xJpfKfs5rPgFXISjH8YRAesmJaFIC8gbUy/vNECy1Y/RUvek6AraHEkIkjkWPF+p3/jf4B20wbgr/RREBIUuRWIn9zXshHtSrr3u/3raFgUIOxSjGNdfwbFEZbo7S3qvm4I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733011865; c=relaxed/simple; bh=UnACCVA7tlVE0+snJs6hfFSd9q31mo6Bh2V0d/9WTZY=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=TkGgFVaS+zcky364twpQ9seqMzxzbKgardTbTZSjRoKAqkCqADp6iO3kF3N+0KXHKNxHgYFhmkzs4rSkGvVZ2xracLCC6Zf0xL3OmgC5T4dWoeCJBvys3CrogWMpNJJ1jZxS+xnLXwCFb0q3hRpFq4mNX96Z84N91qN66+Liy2Y= 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-3a7e39b48a2so10926075ab.0 for ; Sat, 30 Nov 2024 16:11:03 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1733011863; x=1733616663; 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=LIUUZTeJmZPeG8SX0991wAnoGzqpU1DgWIAyiJ4/+4Q=; b=v5lS1t2uE2JCyiJxR+H04zKgOS8Q4CdbkQ721FgLqGJTCmgjpxMEJvsRfp47frP1sh s09wFR+B01tNbs9LqAtv9MGp5T7+WNpCvsemXfjLILWqrTZnE9CliTC7T03nR46F12dU eJ4Tli1/eGNwOlmssRoYMg7xRbd/Xk2NDeUU99bk9qTpVDCAReZii1/Z39v6lNQ1Pa4k zAitgn0cwfEBrPcjX1Us7o0XF08eWZF3ik+6QpzOJ/BfDUASFovhq1Fql1gbxf5jQbAX iGTpUq2AVG99pw2gEQ+HsL9M2PS9JGYg0jgLEB2pUULApxcP9VTEjgV7x3sPPf498Ysp NvSw== X-Forwarded-Encrypted: i=1; AJvYcCUl1hfT44teAVqjKe79Aq8+9FW0fvY1aWgg3fPgdfJunNw8arzzn7nsC7ZhZAGol6+RLPk3XgaLfB2MSw==@vger.kernel.org X-Gm-Message-State: AOJu0YySecW2eMoKssCb22GvSUH1dXhgNexM//PUDjaq4IVBrFJH1qJT k6jxdFA48mCstQgWltJVgTgNFtvqib3g8KmW9Pp/+eEcxcAubqfpnM1b/P7M0tanijciMvjzO52 ttSLqL559pby26L3EVwCH5MEIJyWFfWs92e8L46PXQeLc70jwByQCPlc= X-Google-Smtp-Source: AGHT+IG13qg4YGnamlxKBNo4M0YAZ13YlT7S2DJYFqwTqU+6UUSxHU9xeLnGlTqgpnCs3Zo680wJlcaOZX3SmT9ezGeM/8L/4Vcz Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:190c:b0:3a7:6a98:3fdf with SMTP id e9e14a558f8ab-3a7c5580ea4mr170467365ab.14.1733011863168; Sat, 30 Nov 2024 16:11:03 -0800 (PST) Date: Sat, 30 Nov 2024 16:11:03 -0800 In-Reply-To: <20241130231432.2296-1-hdanton@sina.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <674ba997.050a0220.48a03.0000.GAE@google.com> Subject: Re: [syzbot] [block?] possible deadlock in loop_reconfigure_limits From: syzbot To: hdanton@sina.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by: syzbot+867b0179d31db9955876@syzkaller.appspotmail.com Tested-by: syzbot+867b0179d31db9955876@syzkaller.appspotmail.com Tested on: commit: 98c00f3a blktrace: move copy_[to|from]_user() out of -.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-6.14/block console output: https://syzkaller.appspot.com/x/log.txt?x=121205e8580000 kernel config: https://syzkaller.appspot.com/x/.config?x=131aa7b77993ec3e dashboard link: https://syzkaller.appspot.com/bug?extid=867b0179d31db9955876 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Note: no patches were applied. Note: testing is done by a robot and is best-effort only.