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 743DE1C3BFC for ; Mon, 23 Jun 2025 04:00:03 +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=1750651204; cv=none; b=Nm3zfaWrL0jrh2+pNs0azMLpNa1G5KZwmb5AlFVCXBpt1fVL1jnROmXJsTadCvZkZVL2k1ru0970C2eoj8n2Ua90RsLkcK3vX7QdWIdUs/kLMkDCQOP0CFMG5Pi7Kv74jz7AyC6dLO4gQGBNcj2EI0p9UEz8HK8G2TZNywqVIzI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750651204; c=relaxed/simple; bh=pPylR7SsFpH7/9lpOqaCWDfdB08fmgj3mQjIVObOh7M=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=QoZFpakhm+EQSdnvFlOoBoiZWkOXT55WtKWp8BCKhNLnwXBgucjyTdUE62Jk4Wnq2nlW5Pwy/8TNFrIJ8GE21ShV6zja93KuCSlmznlx3X8OReMoTMCBi85mpWaY783ebLyxvMGFYFLeYiw5DzH1kruRc0YkRBCAl1PU8+C239k= 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-3ddc6d66787so55293085ab.3 for ; Sun, 22 Jun 2025 21:00:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1750651202; x=1751256002; 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=Tp5owW5nwFpu5Jnkrm8smrXMQm3hRvUBzgn0oCSlZLE=; b=Hf/EW6eWhh+hBqDdcLco393RfO2byfTS7mJyMu4Q8bx2arMcz0JLrKl46M3CpHb+OA DMW1oG/7QY/a8dh6IZDHtoHQ8dhjQIhvNQnhqV3oOsl7ZqwEeLRL6k9P4Xz7kXgE1ivj b1dPo3xB+boCv4FpIAUHJMtrmSH7xR2mMKhf/gtfaY/GFQPVelz0VjIdNDra1VD2gkkz MKhwBANLq14cxHTMbVtvwW1027fkbmhfEoiaDhnxu3SomB15U5irXCwSW8tTJTegIKBH sAB4o7KeVSrZ/oMhAbdD7/xqbyv2FUc//cmfoP+3k6TaDfa4zG9W21fBawQnRnwvQmPj Lyag== X-Forwarded-Encrypted: i=1; AJvYcCVMfuq2nXY93ueXL634ONp7WPUUMdGESJd3KL/LrIjjUEgQ/TGrqcKoikXoLbG9WepUrOnIbYU=@vger.kernel.org X-Gm-Message-State: AOJu0YyJDBAqzUv9Z+A0F6s11ip5LCXyaU4G/hdPFiHPoQMrOZe5drUc 6HUI0K7ExxPUUUGC7wEtYzmqVpDHxMfA6rdWSzOzYFazLVVJ/PCA0WGUamYatUfaWT/Bb5mnCxk mP2AuEZr6KUgCrbq9ARrn6+nn2WHs22+PR/Y9biYi5jNO3rJgZIUtKtj5uj4= X-Google-Smtp-Source: AGHT+IGzI3eiBVL0NMFR35KWAlUrxUfo0LV4hyzVNWz6hxCoaIHFjj6zXT0kapv92iCI4EFb+pZdLBWvpe4EvqMzAC+zavsATS4M Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:308f:b0:3dc:8667:3426 with SMTP id e9e14a558f8ab-3de38cca231mr119111035ab.17.1750651202731; Sun, 22 Jun 2025 21:00:02 -0700 (PDT) Date: Sun, 22 Jun 2025 21:00:02 -0700 In-Reply-To: <6834671a.a70a0220.253bc2.0098.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6858d142.a00a0220.2e5631.0004.GAE@google.com> Subject: Re: [syzbot] [block?] possible deadlock in __del_gendisk From: syzbot To: axboe@kernel.dk, hch@lst.de, hdanton@sina.com, 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=1024db0c580000 start commit: e0fca6f2cebf net: mana: Record doorbell physical address i.. git tree: net final oops: https://syzkaller.appspot.com/x/report.txt?x=1224db0c580000 console output: https://syzkaller.appspot.com/x/log.txt?x=1424db0c580000 kernel config: https://syzkaller.appspot.com/x/.config?x=d11f52d3049c3790 dashboard link: https://syzkaller.appspot.com/bug?extid=2e9e529ac0b319316453 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=132f8dd4580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14aac182580000 Reported-by: syzbot+2e9e529ac0b319316453@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