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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D9F06CA5FF6 for ; Mon, 19 Jan 2026 11:11:47 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 4E3416B0182; Mon, 19 Jan 2026 06:11:47 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 490F56B0184; Mon, 19 Jan 2026 06:11:47 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 39A636B0185; Mon, 19 Jan 2026 06:11:47 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id 293636B0182 for ; Mon, 19 Jan 2026 06:11:47 -0500 (EST) Received: from smtpin28.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay07.hostedemail.com (Postfix) with ESMTP id EAE801606CB for ; Mon, 19 Jan 2026 11:11:46 +0000 (UTC) X-FDA: 84348448212.28.AA3D951 Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf03.hostedemail.com (Postfix) with ESMTP id 42DBE20011 for ; Mon, 19 Jan 2026 11:11:45 +0000 (UTC) Authentication-Results: imf03.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=BV32ZWGk; spf=pass (imf03.hostedemail.com: domain of david@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=david@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1768821105; h=from:from:sender: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:dkim-signature; bh=cdVKHYw+SmJ4Q3nHoLoJYm+4U1c670GAkKOH2Q9gito=; b=yGQpqfUKfwoH+N2fxETu/P0I/nHUKZVuU3p8sqGm1+v9yIyQjYbyOi/4cfNSdSxYF37yjz tUNpVPxQ8+3aERG9282MarkzBhh5SaBJYS2q0du7g0QViXoGN0nQ5QlxB5TZwfF8yZFf13 iDKmyd3rQNKGwnNfAkmrAoWwxx6lZac= ARC-Authentication-Results: i=1; imf03.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=BV32ZWGk; spf=pass (imf03.hostedemail.com: domain of david@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=david@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1768821105; a=rsa-sha256; cv=none; b=J8X5RyTRGKjPQrC2715lqOGyEpctnSeRIcQY+fzYAfJRFYmiUqFUwMUZFakor9rnkcxJQn 8FrzeGSSyVQ73UJ1iNpRSneHAaohYVE3BkyBx94tXqspGXvsd791E7PXvu+UOfSMFpICIT gzHALjrIaFNtGGCY1BRRGLaVbnoQUAQ= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 9148C60142; Mon, 19 Jan 2026 11:11:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 730F3C19424; Mon, 19 Jan 2026 11:11:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1768821104; bh=BvXjmuODmLa8CZomxpMTEXEbUGtQks5vexPAI+N0ojM=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=BV32ZWGkNSR8ocs5gnGe2UT/AUPWOtlf9LQZU8GwLo+iZLChX92HMYn9QFlDIUTWA TBScNOI5HjFPEFljO0JW6pR0DGZ/SGIsBo0UYaFB6bdsbuMKKhmivQOVjX6oi2fQfs kdIvhKrwTqqxo0eQFmQXmBdg+Sy8d7RStppqD+Q9+sJIP5QZ7skxT2m2cUzjZszeky 1+jCDGb9YkLh0itbt5Tk/nF1hNubDmBO4m8JnIpXtTDxcFczQzjOOwrfPs+I4tSta+ pOfdGOF1KnFk8ftaOMhTHz6AFsOnJ0qXzIMBfQFdixWbgsHjJ+bcMIwk5WvZy5SRq5 8R/gptSDtHY9g== Message-ID: Date: Mon, 19 Jan 2026 12:11:39 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] selftests/mm: remove virtual_address_range test To: Lorenzo Stoakes Cc: Andrew Morton , "Liam R . Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, Mark Brown References: <20260116132053.857887-1-lorenzo.stoakes@oracle.com> <3d2e85ed-f072-4fca-8c22-461b001495c1@kernel.org> <79d2636a-bb15-4c7f-a633-c4bf408a2bc8@lucifer.local> From: "David Hildenbrand (Red Hat)" Content-Language: en-US Autocrypt: addr=david@kernel.org; keydata= xsFNBFXLn5EBEAC+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 B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABzSREYXZpZCBIaWxk ZW5icmFuZCA8ZGF2aWRAa2VybmVsLm9yZz7CwY0EEwEIADcWIQQb2cqtc1xMOkYN/MpN3hD3 AP+DWgUCaKYhwAIbAwUJJlgIpAILCQQVCgkIAhYCAh4FAheAAAoJEE3eEPcA/4Naa5EP/3a1 9sgS9m7oiR0uenlj+C6kkIKlpWKRfGH/WvtFaHr/y06TKnWn6cMOZzJQ+8S39GOteyCCGADh 6ceBx1KPf6/AvMktnGETDTqZ0N9roR4/aEPSMt8kHu/GKR3gtPwzfosX2NgqXNmA7ErU4puf zica1DAmTvx44LOYjvBV24JQG99bZ5Bm2gTDjGXV15/X159CpS6Tc2e3KvYfnfRvezD+alhF XIym8OvvGMeo97BCHpX88pHVIfBg2g2JogR6f0PAJtHGYz6M/9YMxyUShJfo0Df1SOMAbU1Q Op0Ij4PlFCC64rovjH38ly0xfRZH37DZs6kP0jOj4QdExdaXcTILKJFIB3wWXWsqLbtJVgjR YhOrPokd6mDA3gAque7481KkpKM4JraOEELg8pF6eRb3KcAwPRekvf/nYVIbOVyT9lXD5mJn IZUY0LwZsFN0YhGhQJ8xronZy0A59faGBMuVnVb3oy2S0fO1y/r53IeUDTF1wCYF+fM5zo14 5L8mE1GsDJ7FNLj5eSDu/qdZIKqzfY0/l0SAUAAt5yYYejKuii4kfTyLDF/j4LyYZD1QzxLC MjQl36IEcmDTMznLf0/JvCHlxTYZsF0OjWWj1ATRMk41/Q+PX07XQlRCRcE13a8neEz3F6we 08oWh2DnC4AXKbP+kuD9ZP6+5+x1H1zEzsFNBFXLn5EBEADn1959INH2cwYJv0tsxf5MUCgh Cj/CA/lc/LMthqQ773gauB9mN+F1rE9cyyXb6jyOGn+GUjMbnq1o121Vm0+neKHUCBtHyseB fDXHA6m4B3mUTWo13nid0e4AM71r0DS8+KYh6zvweLX/LL5kQS9GQeT+QNroXcC1NzWbitts 6TZ+IrPOwT1hfB4WNC+X2n4AzDqp3+ILiVST2DT4VBc11Gz6jijpC/KI5Al8ZDhRwG47LUiu Qmt3yqrmN63V9wzaPhC+xbwIsNZlLUvuRnmBPkTJwwrFRZvwu5GPHNndBjVpAfaSTOfppyKB Tccu2AXJXWAE1Xjh6GOC8mlFjZwLxWFqdPHR1n2aPVgoiTLk34LR/bXO+e0GpzFXT7enwyvF FFyAS0Nk1q/7EChPcbRbhJqEBpRNZemxmg55zC3GLvgLKd5A09MOM2BrMea+l0FUR+PuTenh 2YmnmLRTro6eZ/qYwWkCu8FFIw4pT0OUDMyLgi+GI1aMpVogTZJ70FgV0pUAlpmrzk/bLbRk F3TwgucpyPtcpmQtTkWSgDS50QG9DR/1As3LLLcNkwJBZzBG6PWbvcOyrwMQUF1nl4SSPV0L LH63+BrrHasfJzxKXzqgrW28CTAE2x8qi7e/6M/+XXhrsMYG+uaViM7n2je3qKe7ofum3s4v q7oFCPsOgwARAQABwsF8BBgBCAAmAhsMFiEEG9nKrXNcTDpGDfzKTd4Q9wD/g1oFAmic2qsF CSZYCKEACgkQTd4Q9wD/g1oq0xAAsAnw/OmsERdtdwRfAMpC74/++2wh9RvVQ0x8xXvoGJwZ rk0Jmck1ABIM//5sWDo7eDHk1uEcc95pbP9XGU6ZgeiQeh06+0vRYILwDk8Q/y06TrTb1n4n 7FRwyskKU1UWnNW86lvWUJuGPABXjrkfL41RJttSJHF3M1C0u2BnM5VnDuPFQKzhRRktBMK4 GkWBvXlsHFhn8Ev0xvPE/G99RAg9ufNAxyq2lSzbUIwrY918KHlziBKwNyLoPn9kgHD3hRBa Yakz87WKUZd17ZnPMZiXriCWZxwPx7zs6cSAqcfcVucmdPiIlyG1K/HIk2LX63T6oO2Libzz 7/0i4+oIpvpK2X6zZ2cu0k2uNcEYm2xAb+xGmqwnPnHX/ac8lJEyzH3lh+pt2slI4VcPNnz+ vzYeBAS1S+VJc1pcJr3l7PRSQ4bv5sObZvezRdqEFB4tUIfSbDdEBCCvvEMBgoisDB8ceYxO cFAM8nBWrEmNU2vvIGJzjJ/NVYYIY0TgOc5bS9wh6jKHL2+chrfDW5neLJjY2x3snF8q7U9G EIbBfNHDlOV8SyhEjtX0DyKxQKioTYPOHcW9gdV5fhSz5tEv+ipqt4kIgWqBgzK8ePtDTqRM qZq457g1/SXSoSQi4jN+gsneqvlTJdzaEu1bJP0iv6ViVf15+qHuY5iojCz8fa0= In-Reply-To: <79d2636a-bb15-4c7f-a633-c4bf408a2bc8@lucifer.local> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Stat-Signature: jgy1te4seg6naj6sqqid1kkrbqttn5cp X-Rspamd-Queue-Id: 42DBE20011 X-Rspam-User: X-Rspamd-Server: rspam02 X-HE-Tag: 1768821105-322691 X-HE-Meta: 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 RoRzi57G 628ZWpSZr3IupHRsgZXqSXL4vlao/NLm0DS2QMVQvoFesvRQiR5hGKMrAh9ct5NpInkky/3BMDlw0IOh8+2HQedzwTw0WEssBBbetEa0B04DzcVcoYYTFnEcDqQTfdVaEcCT0fTRwkFtxzGDfpUjPXV7QjJpvvJL0mkt4TSX4QwuX9IzJk+dba0+jT03B72Lm4FOgd+ryvmHg5Saj0Eq/tOx+QNkPeMomrL3+Qdzllj9iiwZ32MuCjYParB/GIK380mJKeymucy6g3sSma9SV7gyLVZcGpRHVY0rXMcix6dA32Gs6iVqStNxXoA== 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: List-Subscribe: List-Unsubscribe: On 1/19/26 12:06, Lorenzo Stoakes wrote: > On Mon, Jan 19, 2026 at 11:39:51AM +0100, David Hildenbrand (Red Hat) wrote: >> On >> >> $ uname -r >> 6.18.4-200.fc43.x86_64 >> >> I am getting >> >> $ ./va_high_addr_switch >> mmap(addr_switch_hint - pagesize, pagesize): 0x7fe7de6d7000 - OK >> mmap(addr_switch_hint - pagesize, (2 * pagesize)): 0x7fe7de6d6000 - OK >> mmap(addr_switch_hint, pagesize): 0x7fe7de6d7000 - OK >> mmap(addr_switch_hint, 2 * pagesize, MAP_FIXED): 0xffffffffffffffff - FAILED >> mmap(NULL): 0x7fe7de6d5000 - OK >> mmap(low_addr): 0x40000000 - OK >> mmap(high_addr): 0x7fe7de6d5000 - OK >> mmap(high_addr) again: 0x7fe7de6d3000 - OK >> mmap(high_addr, MAP_FIXED): 0xffffffffffffffff - FAILED >> mmap(-1): 0x7fe7de6d1000 - OK >> mmap(-1) again: 0x7fe7de6cf000 - OK >> mmap(addr_switch_hint - pagesize, pagesize): 0x7fe7de6d0000 - OK >> mmap(addr_switch_hint - pagesize, 2 * pagesize): 0x7fe7de6cf000 - OK >> mmap(addr_switch_hint - pagesize/2 , 2 * pagesize): 0x7fe7de6cd000 - OK >> mmap(addr_switch_hint, pagesize): 0x7fe7de6cc000 - OK >> mmap(addr_switch_hint, 2 * pagesize, MAP_FIXED): 0xffffffffffffffff - FAILED >> >> >> Are these the same issues you see? > > No, that's entirely separate bug it seems :) > Oh, lol, I ran the wrong test. Yes, on Fedora config I just get $ ./virtual_address_range TAP version 13 1..1 ok 1 # SKIP prctl(PR_SET_VMA_ANON_NAME) not supported # 1 skipped test(s) detected. Consider enabling relevant config options to improve coverage. # Totals: pass:0 fail:0 xfail:0 xpass:0 skip:1 error:0 > Seems to work locally for me on 6.18.3, and also in VM with tip mm-unstable, > strange. Maybe a hardware thing (notebook not supporting 5 level page tables, maybe?) > > The issue here is with virtual_address_space.c which seems to just to be > generally broken, I couldn't even bisect to a working one, and I really did > try. > > Actually hang on, isn't va_high_addr_space already then testing what > virtual_address_space should be testing anyway if it were sensible?? > > That suggests then that just removing virtual_address_space without > replacement (since this already exists) is the right way (...!) I cannot really judge, I would have to decipher the details of the tests ... -- Cheers David