From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5B04FC433E0 for ; Sun, 24 May 2020 02:09:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3B5A52077D for ; Sun, 24 May 2020 02:09:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Eh0Ffe4Y" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388267AbgEXCJX (ORCPT ); Sat, 23 May 2020 22:09:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46754 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387611AbgEXCJW (ORCPT ); Sat, 23 May 2020 22:09:22 -0400 Received: from mail-pf1-x442.google.com (mail-pf1-x442.google.com [IPv6:2607:f8b0:4864:20::442]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AB111C061A0E; Sat, 23 May 2020 19:09:22 -0700 (PDT) Received: by mail-pf1-x442.google.com with SMTP id x13so7051474pfn.11; Sat, 23 May 2020 19:09:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:subject:to:cc:references:from:autocrypt:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=M8t92UHEG9xmX2x0+2zxvglG7xZzbvBYHiKbas5wX2g=; b=Eh0Ffe4YOqhUHMOMy+kZXneDCldnbN1x73i1+Pnksv5Wm65E69uoN0l4qdqLYOqO4O 32JpM3+oyIatSUfC0CpmPHs2mvcXjNZtSVvRZ4isDoGcUNMWyu/qp1H3ODje5SVZ4DSJ D1RO2zTdcFJMrC1BjsgXG10FX+MeYJgk94LVaO3pD1sNQV3SpEH+swCJOJB7vVRfpBMA 0PsdbiPvEWyiYuQje1yy+yPfUsi0K97xvwvb3iVgoJ2zeWCgp7bmOq5YU7U2VGU71Qpv mClgEEm+6fDbZdond/kxIBPlmGYbXOSO1Ah9y3fnQBDY6btDTamFrVQXP4YxR1BdAqAe T05w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:subject:to:cc:references:from:autocrypt :message-id:date:user-agent:mime-version:in-reply-to :content-language:content-transfer-encoding; bh=M8t92UHEG9xmX2x0+2zxvglG7xZzbvBYHiKbas5wX2g=; b=Hdfe6xce/v1hgbG+wbiDSngt9TImhDHaQtc0uwjUyBtsigZT6bPVelJQmKT0n9yy6M /EjN6DmjCFq1AdRqpo/r3z760CaEwq8CG7nS5TSYBXBbDbOcac3bezjRU7RwkSkLdTTE uoPUR4Fs9KXhiP5912oJKxu2jZjn2CiCDFuGoCAFw91fSKuP6+pplFzvo8PW4U/JAZB5 uWberXcHDe0olT1lybubUlMwThQToMXR1fnwF42tk3yNfOd+7QqdvSom50Ee0kuIUq8f /a6ZZjq2z9fZKDZpOFpmp5E1v38ZIJiucBHeXz6yzR1zn4fljLFDoBpFckqO8kmKEqQO kQJQ== X-Gm-Message-State: AOAM530d1piu/VkFwqT702JJ+A+UqGwKKk1h/ByNwW22+Em8+uWHCp/P G/eq4VcQ5uldaJAE9/mB1Uq6DnVP X-Google-Smtp-Source: ABdhPJxMfiYYebn1lA5gJzgZy7wOXY6RNfKe0AyXL5g5hLa6iXb1zvvkU8Qj07bMOT1XlhLfxjr0dQ== X-Received: by 2002:a62:e801:: with SMTP id c1mr10861060pfi.217.1590286161707; Sat, 23 May 2020 19:09:21 -0700 (PDT) Received: from server.roeck-us.net ([2600:1700:e321:62f0:329c:23ff:fee3:9d7c]) by smtp.gmail.com with ESMTPSA id r2sm10140098pfq.194.2020.05.23.19.09.20 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 23 May 2020 19:09:21 -0700 (PDT) Subject: Re: [PATCH] sparc32: use PUD rather than PGD to get PMD in srmmu_nocache_init() To: Linus Torvalds Cc: Mike Rapoport , Andrew Morton , "David S. Miller" , Anatoly Pugachev , sparclinux@vger.kernel.org, Linux Kernel Mailing List , stable References: <20200523224732.GA243603@roeck-us.net> From: Guenter Roeck Autocrypt: addr=linux@roeck-us.net; keydata= xsFNBE6H1WcBEACu6jIcw5kZ5dGeJ7E7B2uweQR/4FGxH10/H1O1+ApmcQ9i87XdZQiB9cpN RYHA7RCEK2dh6dDccykQk3bC90xXMPg+O3R+C/SkwcnUak1UZaeK/SwQbq/t0tkMzYDRxfJ7 nyFiKxUehbNF3r9qlJgPqONwX5vJy4/GvDHdddSCxV41P/ejsZ8PykxyJs98UWhF54tGRWFl 7i1xvaDB9lN5WTLRKSO7wICuLiSz5WZHXMkyF4d+/O5ll7yz/o/JxK5vO/sduYDIlFTvBZDh gzaEtNf5tQjsjG4io8E0Yq0ViobLkS2RTNZT8ICq/Jmvl0SpbHRvYwa2DhNsK0YjHFQBB0FX IdhdUEzNefcNcYvqigJpdICoP2e4yJSyflHFO4dr0OrdnGLe1Zi/8Xo/2+M1dSSEt196rXaC kwu2KgIgmkRBb3cp2vIBBIIowU8W3qC1+w+RdMUrZxKGWJ3juwcgveJlzMpMZNyM1jobSXZ0 VHGMNJ3MwXlrEFPXaYJgibcg6brM6wGfX/LBvc/haWw4yO24lT5eitm4UBdIy9pKkKmHHh7s jfZJkB5fWKVdoCv/omy6UyH6ykLOPFugl+hVL2Prf8xrXuZe1CMS7ID9Lc8FaL1ROIN/W8Vk BIsJMaWOhks//7d92Uf3EArDlDShwR2+D+AMon8NULuLBHiEUQARAQABzTJHdWVudGVyIFJv ZWNrIChMaW51eCBhY2NvdW50KSA8bGludXhAcm9lY2stdXMubmV0PsLBgQQTAQIAKwIbAwYL CQgHAwIGFQgCCQoLBBYCAwECHgECF4ACGQEFAlVcphcFCRmg06EACgkQyx8mb86fmYFg0RAA nzXJzuPkLJaOmSIzPAqqnutACchT/meCOgMEpS5oLf6xn5ySZkl23OxuhpMZTVX+49c9pvBx hpvl5bCWFu5qC1jC2eWRYU+aZZE4sxMaAGeWenQJsiG9lP8wkfCJP3ockNu0ZXXAXwIbY1O1 c+l11zQkZw89zNgWgKobKzrDMBFOYtAh0pAInZ9TSn7oA4Ctejouo5wUugmk8MrDtUVXmEA9 7f9fgKYSwl/H7dfKKsS1bDOpyJlqhEAH94BHJdK/b1tzwJCFAXFhMlmlbYEk8kWjcxQgDWMu GAthQzSuAyhqyZwFcOlMCNbAcTSQawSo3B9yM9mHJne5RrAbVz4TWLnEaX8gA5xK3uCNCeyI sqYuzA4OzcMwnnTASvzsGZoYHTFP3DQwf2nzxD6yBGCfwNGIYfS0i8YN8XcBgEcDFMWpOQhT Pu3HeztMnF3HXrc0t7e5rDW9zCh3k2PA6D2NV4fews9KDFhLlTfCVzf0PS1dRVVWM+4jVl6l HRIAgWp+2/f8dx5vPc4Ycp4IsZN0l1h9uT7qm1KTwz+sSl1zOqKD/BpfGNZfLRRxrXthvvY8 BltcuZ4+PGFTcRkMytUbMDFMF9Cjd2W9dXD35PEtvj8wnEyzIos8bbgtLrGTv/SYhmPpahJA l8hPhYvmAvpOmusUUyB30StsHIU2LLccUPPOwU0ETofVZwEQALlLbQeBDTDbwQYrj0gbx3bq 7kpKABxN2MqeuqGr02DpS9883d/t7ontxasXoEz2GTioevvRmllJlPQERVxM8gQoNg22twF7 pB/zsrIjxkE9heE4wYfN1AyzT+AxgYN6f8hVQ7Nrc9XgZZe+8IkuW/Nf64KzNJXnSH4u6nJM J2+Dt274YoFcXR1nG76Q259mKwzbCukKbd6piL+VsT/qBrLhZe9Ivbjq5WMdkQKnP7gYKCAi pNVJC4enWfivZsYupMd9qn7Uv/oCZDYoBTdMSBUblaLMwlcjnPpOYK5rfHvC4opxl+P/Vzyz 6WC2TLkPtKvYvXmdsI6rnEI4Uucg0Au/Ulg7aqqKhzGPIbVaL+U0Wk82nz6hz+WP2ggTrY1w ZlPlRt8WM9w6WfLf2j+PuGklj37m+KvaOEfLsF1v464dSpy1tQVHhhp8LFTxh/6RWkRIR2uF I4v3Xu/k5D0LhaZHpQ4C+xKsQxpTGuYh2tnRaRL14YMW1dlI3HfeB2gj7Yc8XdHh9vkpPyuT nY/ZsFbnvBtiw7GchKKri2gDhRb2QNNDyBnQn5mRFw7CyuFclAksOdV/sdpQnYlYcRQWOUGY HhQ5eqTRZjm9z+qQe/T0HQpmiPTqQcIaG/edgKVTUjITfA7AJMKLQHgp04Vylb+G6jocnQQX JqvvP09whbqrABEBAAHCwWUEGAECAA8CGwwFAlVcpi8FCRmg08MACgkQyx8mb86fmYHNRQ/+ J0OZsBYP4leJvQF8lx9zif+v4ZY/6C9tTcUv/KNAE5leyrD4IKbnV4PnbrVhjq861it/zRQW cFpWQszZyWRwNPWUUz7ejmm9lAwPbr8xWT4qMSA43VKQ7ZCeTQJ4TC8kjqtcbw41SjkjrcTG wF52zFO4bOWyovVAPncvV9eGA/vtnd3xEZXQiSt91kBSqK28yjxAqK/c3G6i7IX2rg6pzgqh hiH3/1qM2M/LSuqAv0Rwrt/k+pZXE+B4Ud42hwmMr0TfhNxG+X7YKvjKC+SjPjqp0CaztQ0H nsDLSLElVROxCd9m8CAUuHplgmR3seYCOrT4jriMFBtKNPtj2EE4DNV4s7k0Zy+6iRQ8G8ng QjsSqYJx8iAR8JRB7Gm2rQOMv8lSRdjva++GT0VLXtHULdlzg8VjDnFZ3lfz5PWEOeIMk7Rj trjv82EZtrhLuLjHRCaG50OOm0hwPSk1J64R8O3HjSLdertmw7eyAYOo4RuWJguYMg5DRnBk WkRwrSuCn7UG+qVWZeKEsFKFOkynOs3pVbcbq1pxbhk3TRWCGRU5JolI4ohy/7JV1TVbjiDI HP/aVnm6NC8of26P40Pg8EdAhajZnHHjA7FrJXsy3cyIGqvg9os4rNkUWmrCfLLsZDHD8FnU mDW4+i+XlNFUPUYMrIKi9joBhu18ssf5i5Q= Message-ID: <3bc16457-55d1-3d1f-6a78-fc3e95a1855f@roeck-us.net> Date: Sat, 23 May 2020 19:09:19 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 5/23/20 5:15 PM, Linus Torvalds wrote: > On Sat, May 23, 2020 at 3:47 PM Guenter Roeck wrote: >> >> This quite innocent looking patch crashes all my sparc32 boot tests. >> Crash log and bisect results below. Reverting it fixes the problem. > > It should also fixed by 0cfc8a8d70dc ("sparc32: fix page table > traversal in srmmu_nocache_init()"). No? > Yes, it is. Sorry for the noise. 0cfc8a8d70dc wasn't available when I started the bisect, and I didn't re-check afterwards. Guenter From mboxrd@z Thu Jan 1 00:00:00 1970 From: Guenter Roeck Date: Sun, 24 May 2020 02:09:19 +0000 Subject: Re: [PATCH] sparc32: use PUD rather than PGD to get PMD in srmmu_nocache_init() Message-Id: <3bc16457-55d1-3d1f-6a78-fc3e95a1855f@roeck-us.net> List-Id: References: <20200523224732.GA243603@roeck-us.net> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Linus Torvalds Cc: Mike Rapoport , Andrew Morton , "David S. Miller" , Anatoly Pugachev , sparclinux@vger.kernel.org, Linux Kernel Mailing List , stable On 5/23/20 5:15 PM, Linus Torvalds wrote: > On Sat, May 23, 2020 at 3:47 PM Guenter Roeck wrote: >> >> This quite innocent looking patch crashes all my sparc32 boot tests. >> Crash log and bisect results below. Reverting it fixes the problem. > > It should also fixed by 0cfc8a8d70dc ("sparc32: fix page table > traversal in srmmu_nocache_init()"). No? > Yes, it is. Sorry for the noise. 0cfc8a8d70dc wasn't available when I started the bisect, and I didn't re-check afterwards. Guenter