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=-2.4 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 DFD43C3524A for ; Tue, 4 Feb 2020 08:22:39 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id A082720730 for ; Tue, 4 Feb 2020 08:22:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="eJPMe7gp" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A082720730 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 1C2E76B0003; Tue, 4 Feb 2020 03:22:39 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 174B96B0005; Tue, 4 Feb 2020 03:22:39 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 08A9E6B0006; Tue, 4 Feb 2020 03:22:39 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0250.hostedemail.com [216.40.44.250]) by kanga.kvack.org (Postfix) with ESMTP id E58376B0003 for ; Tue, 4 Feb 2020 03:22:38 -0500 (EST) Received: from smtpin24.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 8A9D7181AC9CB for ; Tue, 4 Feb 2020 08:22:38 +0000 (UTC) X-FDA: 76451753196.24.jewel06_511e76be0c81b X-HE-Tag: jewel06_511e76be0c81b X-Filterd-Recvd-Size: 8892 Received: from us-smtp-1.mimecast.com (us-smtp-delivery-1.mimecast.com [205.139.110.120]) by imf20.hostedemail.com (Postfix) with ESMTP for ; Tue, 4 Feb 2020 08:22:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1580804556; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=DOFlQBd8js+cB9ocQRQpZPFzvW37jiM3pPTSr4cUVBA=; b=eJPMe7gpU7UiwoL1y1bTeQl44j5n0QKdvsppTHcN0BhLNedv4qPeMu6dGob+Jaak8+QQFP 4jmUX2IFw1/PdTtCENzib8FgClGpcvCsUhTmrJZ+rZltToA9WiuUZWbPc6W0UXrx0cLaQv qsJerisMY/v5fp/WwXMWYGa2BiZOjFQ= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-300-aBPC65ysOw6nRmm5elIlaQ-1; Tue, 04 Feb 2020 03:22:32 -0500 X-MC-Unique: aBPC65ysOw6nRmm5elIlaQ-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 751B2108592A; Tue, 4 Feb 2020 08:22:30 +0000 (UTC) Received: from [10.36.117.121] (ovpn-117-121.ams2.redhat.com [10.36.117.121]) by smtp.corp.redhat.com (Postfix) with ESMTP id 67207196AE; Tue, 4 Feb 2020 08:22:27 +0000 (UTC) Subject: Re: [patch 06/67] mm: factor out next_present_section_nr() To: Linus Torvalds , Andrew Morton Cc: Baoquan He , Dan Williams , "Kirill A . Shutemov" , "Kirill A . Shutemov" , Linux-MM , Mel Gorman , Michal Hocko , Michal Hocko , mm-commits@vger.kernel.org, osalvador@suse.de, Pavel Tatashin , Vlastimil Babka , zhi.jin@intel.com References: <20200203173311.6269a8be06a05e5a4aa08a93@linux-foundation.org> <20200204013402.UfNC2Pqe3%akpm@linux-foundation.org> From: David Hildenbrand Autocrypt: addr=david@redhat.com; prefer-encrypt=mutual; keydata= mQINBFXLn5EBEAC+zYvAFJxCBY9Tr1xZgcESmxVNI/0ffzE/ZQOiHJl6mGkmA1R7/uUpiCjJ dBrn+lhhOYjjNefFQou6478faXE6o2AhmebqT4KiQoUQFV4R7y1KMEKoSyy8hQaK1umALTdL QZLQMzNE74ap+GDK0wnacPQFpcG1AE9RMq3aeErY5tujekBS32jfC/7AnH7I0v1v1TbbK3Gp XNeiN4QroO+5qaSr0ID2sz5jtBLRb15RMre27E1ImpaIv2Jw8NJgW0k/D1RyKCwaTsgRdwuK Kx/Y91XuSBdz0uOyU/S8kM1+ag0wvsGlpBVxRR/xw/E8M7TEwuCZQArqqTCmkG6HGcXFT0V9 PXFNNgV5jXMQRwU0O/ztJIQqsE5LsUomE//bLwzj9IVsaQpKDqW6TAPjcdBDPLHvriq7kGjt WhVhdl0qEYB8lkBEU7V2Yb+SYhmhpDrti9Fq1EsmhiHSkxJcGREoMK/63r9WLZYI3+4W2rAc UucZa4OT27U5ZISjNg3Ev0rxU5UH2/pT4wJCfxwocmqaRr6UYmrtZmND89X0KigoFD/XSeVv jwBRNjPAubK9/k5NoRrYqztM9W6sJqrH8+UWZ1Idd/DdmogJh0gNC0+N42Za9yBRURfIdKSb B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABtCREYXZpZCBIaWxk ZW5icmFuZCA8ZGF2aWRAcmVkaGF0LmNvbT6JAlgEEwEIAEICGwMFCQlmAYAGCwkIBwMCBhUI AgkKCwQWAgMBAh4BAheAFiEEG9nKrXNcTDpGDfzKTd4Q9wD/g1oFAl3pImkCGQEACgkQTd4Q 9wD/g1o+VA//SFvIHUAvul05u6wKv/pIR6aICPdpF9EIgEU448g+7FfDgQwcEny1pbEzAmiw zAXIQ9H0NZh96lcq+yDLtONnXk/bEYWHHUA014A1wqcYNRY8RvY1+eVHb0uu0KYQoXkzvu+s Dncuguk470XPnscL27hs8PgOP6QjG4jt75K2LfZ0eAqTOUCZTJxA8A7E9+XTYuU0hs7QVrWJ jQdFxQbRMrYz7uP8KmTK9/Cnvqehgl4EzyRaZppshruKMeyheBgvgJd5On1wWq4ZUV5PFM4x II3QbD3EJfWbaJMR55jI9dMFa+vK7MFz3rhWOkEx/QR959lfdRSTXdxs8V3zDvChcmRVGN8U Vo93d1YNtWnA9w6oCW1dnDZ4kgQZZSBIjp6iHcA08apzh7DPi08jL7M9UQByeYGr8KuR4i6e RZI6xhlZerUScVzn35ONwOC91VdYiQgjemiVLq1WDDZ3B7DIzUZ4RQTOaIWdtXBWb8zWakt/ ztGhsx0e39Gvt3391O1PgcA7ilhvqrBPemJrlb9xSPPRbaNAW39P8ws/UJnzSJqnHMVxbRZC Am4add/SM+OCP0w3xYss1jy9T+XdZa0lhUvJfLy7tNcjVG/sxkBXOaSC24MFPuwnoC9WvCVQ ZBxouph3kqc4Dt5X1EeXVLeba+466P1fe1rC8MbcwDkoUo65Ag0EVcufkQEQAOfX3n0g0fZz Bgm/S2zF/kxQKCEKP8ID+Vz8sy2GpDvveBq4H2Y34XWsT1zLJdvqPI4af4ZSMxuerWjXbVWb T6d4odQIG0fKx4F8NccDqbgHeZRNajXeeJ3R7gAzvWvQNLz4piHrO/B4tf8svmRBL0ZB5P5A 2uhdwLU3NZuK22zpNn4is87BPWF8HhY0L5fafgDMOqnf4guJVJPYNPhUFzXUbPqOKOkL8ojk CXxkOFHAbjstSK5Ca3fKquY3rdX3DNo+EL7FvAiw1mUtS+5GeYE+RMnDCsVFm/C7kY8c2d0G NWkB9pJM5+mnIoFNxy7YBcldYATVeOHoY4LyaUWNnAvFYWp08dHWfZo9WCiJMuTfgtH9tc75 7QanMVdPt6fDK8UUXIBLQ2TWr/sQKE9xtFuEmoQGlE1l6bGaDnnMLcYu+Asp3kDT0w4zYGsx 5r6XQVRH4+5N6eHZiaeYtFOujp5n+pjBaQK7wUUjDilPQ5QMzIuCL4YjVoylWiBNknvQWBXS lQCWmavOT9sttGQXdPCC5ynI+1ymZC1ORZKANLnRAb0NH/UCzcsstw2TAkFnMEbo9Zu9w7Kv AxBQXWeXhJI9XQssfrf4Gusdqx8nPEpfOqCtbbwJMATbHyqLt7/oz/5deGuwxgb65pWIzufa N7eop7uh+6bezi+rugUI+w6DABEBAAGJAiUEGAECAA8FAlXLn5ECGwwFCQlmAYAACgkQTd4Q 9wD/g1qA6w/+M+ggFv+JdVsz5+ZIc6MSyGUozASX+bmIuPeIecc9UsFRatc91LuJCKMkD9Uv GOcWSeFpLrSGRQ1Z7EMzFVU//qVs6uzhsNk0RYMyS0B6oloW3FpyQ+zOVylFWQCzoyyf227y GW8HnXunJSC+4PtlL2AY4yZjAVAPLK2l6mhgClVXTQ/S7cBoTQKP+jvVJOoYkpnFxWE9pn4t H5QIFk7Ip8TKr5k3fXVWk4lnUi9MTF/5L/mWqdyIO1s7cjharQCstfWCzWrVeVctpVoDfJWp 4LwTuQ5yEM2KcPeElLg5fR7WB2zH97oI6/Ko2DlovmfQqXh9xWozQt0iGy5tWzh6I0JrlcxJ ileZWLccC4XKD1037Hy2FLAjzfoWgwBLA6ULu0exOOdIa58H4PsXtkFPrUF980EEibUp0zFz GotRVekFAceUaRvAj7dh76cToeZkfsjAvBVb4COXuhgX6N4pofgNkW2AtgYu1nUsPAo+NftU CxrhjHtLn4QEBpkbErnXQyMjHpIatlYGutVMS91XTQXYydCh5crMPs7hYVsvnmGHIaB9ZMfB njnuI31KBiLUks+paRkHQlFcgS2N3gkRBzH7xSZ+t7Re3jvXdXEzKBbQ+dC3lpJB0wPnyMcX FOTT3aZT7IgePkt5iC/BKBk3hqKteTnJFeVIT7EC+a6YUFg= Organization: Red Hat GmbH Message-ID: <1afc70cb-1475-fbbe-cfc8-dda222b7f69d@redhat.com> Date: Tue, 4 Feb 2020 09:22:26 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.3.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 04.02.20 04:04, Linus Torvalds wrote: > More signs of your - or somebody elses - email scripts being broken: >=20 > On Tue, Feb 4, 2020 at 1:34 AM Andrew Morton wrote: >> >> From: David Hildenbrand >> Subject: mm: factor out next_present_section_nr() >> >> Let's move it to the header and use the shorter variant from >> mm/page_alloc.c (the original one will also check >> "__highest_present_section_nr + 1", which is not necessary). While at= it, >> make the section_nr in next_pfn() const. >> >> In next_pfn(), we now return section_nr_to_pfn(-1) instead of -1 once = we >> exceed __highest_present_section_nr, which doesn't make a difference i= =3D n >> the caller as it is big enough (>=3D3D all sane end_pfn). >=20 > Here, look at that "i=3D n". It looks like it was a MIME line-break (so > "in" was MIME-encoded and turned into "i=3D\nn") followed by you or > David re-flowing the text without MIME-decoding it. >=20 > And note the ">=3D3D" thing. It should be just ">=3D" but again there i= s > left-over crud from using MIME-encoded data without decoding it. >=20 > I am noticing that this has apparently happened before too. And maybe > it's not you. Maybe it's David Hildenbrand that has sent you already > corrupted data. >=20 > Doing a >=20 > git log --grep=3D"=3D3D" >=20 > shows that this mistake has been done by others before. But it's not > _that_ common. I find 25 occurrences of that "=3D3D" thing in the logs > over the whole history of the kernel. >=20 Easter eggs :) > The "=3D\n" thing is much harder to grep for quite that trivially, or > the other "random utf8 encoded as MIME and never decoded properly" > stuff. >=20 > But the fact that I found at least _two_ of these cases in just this > series, and it had that broken coverletter too, makes me go "Hmm". >=20 > I tried to look for other cases, but those two emails (both from David > Hildenbrand, soo...) were the only ones I found in this series of 67. >=20 > I can fix them up, of course, but I really hate how somebody has some > workflow that generates this corruption. I'm a simple man - I use vim+git with barely any custom scripts (well, only a cc-cmd script shared my Michal once). I've been sending patches from the same machine for years without any such glitches. The only thing I do manually is copying the cover letter from Thunderbird + adapting it when resending a version. But as the patch descriptions themselves are messed up, that doesn't explain the story. I *suspect* this is the result of (one of many) temporary mail server issues we had at Red Hat when switching providers (although a weird one - but I remember there were weird ones). --=20 Thanks, David / dhildenb