Received: by 2002:a05:6a10:8c0a:0:0:0:0 with SMTP id go10csp2364902pxb; Thu, 11 Feb 2021 10:26:51 -0800 (PST) X-Google-Smtp-Source: ABdhPJyi+ypW0hmotgf7D5pGh93OKGN2NZOnLEhZ6rDAB1QR3tlD+5/7hvfihurCIMZPew6QKNQj X-Received: by 2002:a05:6402:27d1:: with SMTP id c17mr9508055ede.109.1613068010762; Thu, 11 Feb 2021 10:26:50 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1613068010; cv=none; d=google.com; s=arc-20160816; b=zNBxpJZkl5KTOhWjzCoxEdt7vgINrE1+mpXsriN1Y9+8xblhQ3sGqeAiexdZjY6eIa 4L394h+3n46PE3kWbatC0uKjqDxfWfKOImaDBCjG6ZkeVN4XUmfHB+qhn9zqy4KDdB1J ITG1yb4tKoF0mR+SsIQL6eMVnSWeF6VpMvk2xn8clK0Uvo9zyjw2PFyaA2+cjLINgeXN tjl2UDKI8kf9TATIsf7Niw+y+tnj4RCpHfNbbPCjiH9zE/cL3gz/N3dSGsE++NqAaBIK +mz2OzIYljOVkOmKaGed1g8Sfh+Og49kLE1aOqAr1jQRJ6ESD709Oxn1fuPT7s9GCXS/ 4nYw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:content-language :in-reply-to:mime-version:user-agent:date:message-id:from:references :cc:to:subject:dkim-signature; bh=YpjUPD9akjWVjw/tF2Defj5rpdUF4m6+0R4mx4oxxzU=; b=K9NTN/2eA7At6l00MWR2Lf7yY1bXI6uft8BSpdT3qI0HwjH4SeDai3Ulv0qgGcmfW+ 6xzNZK1H/QKqqZ7NK7+5wMAAoSmSIiZwMlQSlO09LD2+/X1ux/r8irrIkiI71QwD/AgL /HhSOEq+KEwA9Bov8jr3qHoe0G7+VzCnI5+7njeRnEaZ4gGWDsrEv3ej+Ij98kBUN+2H 650lswlSpa0QHNOxyd+oU0kXKl7ExI8wsVaL5nYQqzOSKDbMGsqI5Z1hCTlyGyokNsS6 AvxmuX7aJhTsxxVX7F7wQilZcO3OiuhLR8KlqYJlZlbX2Y6Jm8C7QvILH3Frhj9jgFu1 BlCQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=KIv+jTuy; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id x21si4320616edv.185.2021.02.11.10.26.27; Thu, 11 Feb 2021 10:26:50 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=KIv+jTuy; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232677AbhBKSZV (ORCPT + 99 others); Thu, 11 Feb 2021 13:25:21 -0500 Received: from mail.kernel.org ([198.145.29.99]:53942 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230077AbhBKSSV (ORCPT ); Thu, 11 Feb 2021 13:18:21 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 32D0C64E62; Thu, 11 Feb 2021 18:17:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1613067461; bh=a/ICQhvy+vCwAeCKLCXy2crzr066Jt2P9U56XoLiHhs=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=KIv+jTuyjEVZseLzLn1Wm+cD02eF4xmTW3WG2LJDxOIw3yqu30mH/OpY6bHr7W7tY KTtFfbMWDkpi8KA+3oA8wWsnG/VWTv/5hhOHotIfBiCOwtjtOJKQBrOeMJjIi9kXPN PTl8KGvZ1jRjJszND4A2inKib1zRUkHI+LxkCYO8KLbWsi1s7kvtVsw2fxfvHd2n64 EdXAhs7OmWErMWLKP9ouC0DNSddtQ8O282p37B2tVwc1rwlY/qeDh6ej8DgrLsCrPo b9owFfDmXLxdiRIotAZ7t0ZW5zaa+NKnvNwt7yM6FNZgRtdfeoVLURjMgVM99eKW6J LpAhlhta/fTQw== Subject: Re: [PATCH 3/3] [v3] lib/vsprintf: debug_never_hash_pointers prints all addresses as unhashed To: Petr Mladek Cc: Pavel Machek , Steven Rostedt , Sergey Senozhatsky , Vlastimil Babka , Andy Shevchenko , Matthew Wilcox , akpm@linux-foundation.org, Linus Torvalds , roman.fietze@magna.com, Kees Cook , John Ogness , akinobu.mita@gmail.com, glider@google.com, Andrey Konovalov , Marco Elver , Rasmus Villemoes , Tetsuo Handa , linux-kernel@vger.kernel.org, linux-mm@kvack.org References: <20210210213453.1504219-1-timur@kernel.org> <20210210213453.1504219-4-timur@kernel.org> <20210211123118.GB31708@amd> <9f0c02d9-29d6-95ce-b9b7-27342aa70c6f@kernel.org> From: Timur Tabi Message-ID: Date: Thu, 11 Feb 2021 12:17:38 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2/11/21 11:23 AM, Petr Mladek wrote: > There was some pushback against this feature in general. > It should be used deliberately and people must be aware > of the consequences. This is why it is only boot option > and why it prints such a huge warning. The long clear > name helps as well. This is my thinking as well. I wanted it to be a bit obnoxious.