From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f69.google.com (mail-io1-f69.google.com [209.85.166.69]) (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 A1B4D4C9D for ; Thu, 17 Jul 2025 04:53:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.69 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752727987; cv=none; b=MzWNsdUkBwMm72jlaQICTuKpcdCjCUbWALkl8zanqTgVU+gD4Fbtq43K1bZvv/DyzbN50o8xD0CqfdTMtLrHb/ufgDMT5kpounZB0O77kzk0LuwCGiinFyP5O08pQs3Xr4QVxqR6Qy0NqOpg91lrrDHrYFkV7U/mSIzh7tLceSk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752727987; c=relaxed/simple; bh=xtKhstNTmrnDJHOuAOSMxreheu5E9ccxXtSYK71498Y=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=arBVqYZ5ZwXnDGtZ56+VKxXdeWRttfPPK40XKhVzF66UegxUxTqZTIQrUusjlLMzwnI3LiM9vfeHGI5OvyjF8hjRf2lHIa1wrRofKG7Khy0LZGaK4hh9qKeTHA4EW+lMkfvi+tJfHRHXvPBTbIb6AI6OjkdJUIlO1BM7zDOuMmQ= 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=209.85.166.69 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-f69.google.com with SMTP id ca18e2360f4ac-8760733a107so60947639f.3 for ; Wed, 16 Jul 2025 21:53:05 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1752727985; x=1753332785; 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=yrqN04cr3JZpYiwcfwUTCGQ32JhGfUVbthJmSj0Uc4I=; b=aFOzKZ3359NGB+3tW4VYnt2tIbbf/N5UXV9XFqCMyN7SBiYJ4NA3n1yZjVgz4QGtzK sPW/HeXqESabMjVno/xudeIU7E0q8GT/5Lx2UVK3w4nVmCR6pQqvedse/LcKEgZ3TQER XHEaamAvL3DctR4qaexKwC2ewz+iBdhA1/rhu44IOKWxlo6jiPyBeheJiFv312noXsHt DIa2Ipv/OIdOewfTM8piomnPw5PjWuqpWsSZxkhRSmQdH3G0CB2rWrZQy4ia8Y0FGJSN q2DRFfGp/o5pd3v8qbyniNZBkWVBIO2eLGaXrafquV/CjBaxzCKTH9fE9P0A78GszVMY eDsg== X-Forwarded-Encrypted: i=1; AJvYcCXpRcoBv/vtJjYrVLAn3J1TOjtsii9DcDTMmwwxzePHcaSUwlghgGl7HklFjowyFSFLOT29lNe1lg2EIck=@vger.kernel.org X-Gm-Message-State: AOJu0YwzCAFFmAAhTt6ZE8AJScThWHAMq8z2rfrGSGekzho8rw0S5DgI c9A9pc93sWWk9EBQcdkUrtHZFOmQe3Ni+fPCrrlEC4WKvjalqwS1KocKqfPtgSILU7k/Hlqo82+ 4OWefrc0hLwWxHi2P8ayFOYoUi1TdNv+bZdSWUZBNjO9h8K0kcq5R4PkRWec= X-Google-Smtp-Source: AGHT+IH6oto1YCb6O0AqjElSdn0VcaI6xwe+bC69ogavivD9k0PMMDFUONsxrBqXTAu+BDDu1+IAPgv3NxYqlvZWyw8sfb6wJIw3 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6602:482:b0:86c:f0d9:553 with SMTP id ca18e2360f4ac-879c08a60f1mr642151739f.5.1752727984729; Wed, 16 Jul 2025 21:53:04 -0700 (PDT) Date: Wed, 16 Jul 2025 21:53:04 -0700 In-Reply-To: <20250717023444.2281-1-hdanton@sina.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <687881b0.a70a0220.693ce.0038.GAE@google.com> Subject: Re: [syzbot] [mm?] possible deadlock in lock_next_vma From: syzbot To: hdanton@sina.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, lorenzo.stoakes@oracle.com, surenb@google.com, 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+159a3ef1894076a6a6e9@syzkaller.appspotmail.com Tested-by: syzbot+159a3ef1894076a6a6e9@syzkaller.appspotmail.com Tested on: commit: 760b462b mm: add zblock allocator git tree: git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-new console output: https://syzkaller.appspot.com/x/log.txt?x=106c2d8c580000 kernel config: https://syzkaller.appspot.com/x/.config?x=c39d2ebefebaec5f dashboard link: https://syzkaller.appspot.com/bug?extid=159a3ef1894076a6a6e9 compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 Note: no patches were applied. Note: testing is done by a robot and is best-effort only.