From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) (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 52A1E54654 for ; Sun, 13 Jul 2025 12:20:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752409206; cv=none; b=FaTZNFfHMaF4lRRQfkFP5hrYJuiTLCWV7Sy2HRvL1wz2hxTxylUKGNk+YuN1YAks30EWQqx5CXUCdEtw4QoPN3qgLduI7p3QvBWVjOhTIkwV/VjazxUEzsljM4IuVapPqY1dcgIhRsh3nxdOm1ZDr2o5pJ+kYk/fpK/1z0jO87Q= 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=209.85.166.200 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-f200.google.com with SMTP id e9e14a558f8ab-3e05997f731so82348155ab.3 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=mrUSujfaWUw/1t9fTjTwwG1m2YSxhVNOIz8Jek5Hic1KgEWUq0cxKCHe/qYjBamizY tx2XJqNpGLuW80df7r6cWmHqPaMxqCQv1NJwPOEldRXV1tXx2nuhf2T1xjnl8cQ61XNF YhxQHNpNPR6SMuKHduV0tJJig+jI7rKWoc1OfaL6LK7si6ibCbpMy0HQvIs20E+KrDuZ ISps1okmOs/zeUW1Dyub9dmCQaq7VeR5ekYcMpbPqnvrZF1R5uRJtwGG36FaReTdmBKH K7hJjW1Cc9pce5EH6tQv37tcLJpcr4m8tHEZqhFt3g046ZWFatZtPZu3ix5Th3dpFynQ pMjA== X-Forwarded-Encrypted: i=1; AJvYcCUBidubjt0+q+qBaJ8WIW+06C9HbsFhto0mODmi9edvyyy950qjkpXPHzcFNfpxUheKV/A8xLrNL5ZgAQ==@vger.kernel.org X-Gm-Message-State: AOJu0YwidjlRK6r4YTYA3+C5fa7wQ/DZpE31ijTuZYpLnengOaf5lEY2 SDAe8fEhWdFLVC/GEB88cPIa9I03Hasllk1jKaoF8XcrfTfUnwaWZjWjVgQ+N0BBG4apfle2VLS dubK+x0l9+pEjvSza/Yue3kOcdaf3fZMYMpmsgr6Xax38FF1nuAxX2dGjeJk= X-Google-Smtp-Source: AGHT+IF2Exx2IUNfv7fdIrV5sTW8rBytOis0b7TGzJm4zo9XvFCq3New/6Dkvq4Mr7o0fywQcedS34O/GhHp43TJvQ62c0w91YUL Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:3b85: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