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 56B6A1F0994 for ; Sun, 13 Jul 2025 12:20:05 +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=1752409206; cv=none; b=MfB0Rm6uKjmTPpI+Na9lKWV05TZ/z+WzDI5JC0MS4I0alI3wIqt4hUvIiXTJjkPlouGcz2wT26y90eihLHzBi1LcCR/v80H6DkicPySiQYf0jx3Ut9F5sTTItbS6+z2DNu3hGTU7WBrM8RbbqC06JZctxGzwAQnZ6D5dVIUdiqA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752409206; c=relaxed/simple; bh=4TLGo6GK4QSP+WPahMdSl6hUqJJNrHr+VZrospIkjj0=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=mlMxtqqaQfT++hlZAyNJ31gXlilGRu+6OekgPbxVz+B/xNsro0aQrK1OfE1yE5dn/VtNe2HE/6HKPLsavE0H2xX2vf9/pa6GJiDaFvoKEPyByev4iN+7n2Px0FCAPi9jYCP6utJix9wZCoYxxhZY/WGCdnPFs/f12Ks+6TuoVQ8= 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-3df33827a8cso78959385ab.1 for ; Sun, 13 Jul 2025 05:20:05 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1752409204; x=1753014004; 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=GHfZZYwlltX3cnWzSRwgx2BtUxjdDvi1oy+Wb8i2L5c=; b=BBBBe1kc5GEbEZVUWTFeodjTaYx4Qz3226d/ScBd7fH9iEFb7lL0jKuSrvmXjl1MY5 7lhECkyqdS9ClBO7Y2JXSeLHsd2cySC8TMhGREakchBYqzakPR8jzz1H5FFuZ4JDVAM6 OZMGOYN3bh3z07BSshmPnddGsbq7AohbI5JRPcnkPm59iMlwrssxXY9lphmTUgXMRINz nQC/+O6xzsfV3vUGRS0f1Yk4/Dufafyu1yB9uJjkVeNiPvo4BLUvWMjTuvxdiCXcrgAQ qnuL7HhOkUFotyKT6r6oAk3+YoqaBbTgFJYkO7f3A+rZ3UuM969DrNkRMRuamtmi+dKd yVsA== X-Forwarded-Encrypted: i=1; AJvYcCW0X4HFg7wha6Ohy36s2rwdoGjSpW1rk0xJ5vr5InCIEu6lfXgQJ+eDTkwA8j1Uj6TrODkvfcR6w7upkbs=@vger.kernel.org X-Gm-Message-State: AOJu0YwHx2PS2oexuR5mLfFNkjUDAoF+ZSPszd5r+Lfz8E8KaEQjAGLV 6UY5UWjeVGj4ro1ADIEOR5YlYseb160x1/g6bGbXpZ0khRqzF6bvJS1d7Sw3SBFaQKO+v5DnsNX 1gGxySGKN46G+KZcoibHUo1qkXWdSw8nf3ShH1k0aYL34Pis9UrZfqRQHZtk= X-Google-Smtp-Source: AGHT+IF2Exx2IUNfv7fdIrV5sTW8rBytOis0b7TGzJm4zo9XvFCq3New/6Dkvq4Mr7o0fywQcedS34O/GhHp43TJvQ62c0w91YUL Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:3b85:b0:3df:399d:39c9 with SMTP id e9e14a558f8ab-3e2542e803amr113121025ab.2.1752409203286; Sun, 13 Jul 2025 05:20:03 -0700 (PDT) Date: Sun, 13 Jul 2025 05:20:03 -0700 In-Reply-To: <6743b30d.050a0220.1cc393.004e.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6873a473.a70a0220.3b380f.0031.GAE@google.com> Subject: Re: [syzbot] [block?] possible deadlock in blk_mq_update_nr_hw_queues From: syzbot To: axboe@kernel.dk, hch@lst.de, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, ming.lei@redhat.com, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit f1be1788a32e8fa63416ad4518bbd1a85a825c9d Author: Ming Lei Date: Fri Oct 25 00:37:20 2024 +0000 block: model freeze & enter queue as lock for supporting lockdep bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14ea5d82580000 start commit: a52f9f0d77f2 Merge tag 'batadv-next-pullrequest-20250710' .. git tree: net-next final oops: https://syzkaller.appspot.com/x/report.txt?x=16ea5d82580000 console output: https://syzkaller.appspot.com/x/log.txt?x=12ea5d82580000 kernel config: https://syzkaller.appspot.com/x/.config?x=f8235fb7e74dd7f6 dashboard link: https://syzkaller.appspot.com/bug?extid=6279b273d888c2017726 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14321d82580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=179590f0580000 Reported-by: syzbot+6279b273d888c2017726@syzkaller.appspotmail.com Fixes: f1be1788a32e ("block: model freeze & enter queue as lock for supporting lockdep") For information about bisection process see: https://goo.gl/tpsmEJ#bisection