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]) by smtp.lore.kernel.org (Postfix) with ESMTP id 200EBC4345F for ; Tue, 16 Apr 2024 22:29:21 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 9373F6B0099; Tue, 16 Apr 2024 18:29:20 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 8E5206B009B; Tue, 16 Apr 2024 18:29:20 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 7ACF26B009C; Tue, 16 Apr 2024 18:29:20 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id 5CF866B0099 for ; Tue, 16 Apr 2024 18:29:20 -0400 (EDT) Received: from smtpin07.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay04.hostedemail.com (Postfix) with ESMTP id 086B91A08AB for ; Tue, 16 Apr 2024 22:29:20 +0000 (UTC) X-FDA: 82016837280.07.A3114A0 Received: from mout.kundenserver.de (mout.kundenserver.de [217.72.192.74]) by imf24.hostedemail.com (Postfix) with ESMTP id 6FEDD18001D for ; Tue, 16 Apr 2024 22:29:13 +0000 (UTC) Authentication-Results: imf24.hostedemail.com; dkim=pass header.d=heusel.eu header.s=s1-ionos header.b=dzl3c9AJ; spf=pass (imf24.hostedemail.com: domain of christian@heusel.eu designates 217.72.192.74 as permitted sender) smtp.mailfrom=christian@heusel.eu; dmarc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1713306554; 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: in-reply-to:in-reply-to:references:references:dkim-signature; bh=6ZuMU0XovAW0umCv+YpdexPnFfz2IsuCOBAjTp3FJ2o=; b=yke8TOypEHKpxK755QsRRtwauyKxAMI1//csuxLevxSxSqCwhzM5w9sJVtztiAamyS+Y6d pxNFZAOwBzc4XAyuh4wa64J7EkpSnXVr1NWwyoCBcGYMuV4D8a8XD9FL0I3QQCi2b0bHWN TDvLAaBsNkyi/vv+FIjI00vIy2WyGnI= ARC-Authentication-Results: i=1; imf24.hostedemail.com; dkim=pass header.d=heusel.eu header.s=s1-ionos header.b=dzl3c9AJ; spf=pass (imf24.hostedemail.com: domain of christian@heusel.eu designates 217.72.192.74 as permitted sender) smtp.mailfrom=christian@heusel.eu; dmarc=none ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1713306554; a=rsa-sha256; cv=none; b=t9215B5RmH/6HEbJPj04y8gph4867gsKcraILZezIR/llA/R/cwOj+Hk6Oz8ylALfjdsBh hCRXBdCAu6LBAXiBsayf1zXR3jY99oOUJcKuEMyT+wGvwuPzg4sgO8Bq23Oym2ELl1OAFB skkF39+HXoVBV0oN3IRJMxU5JUQJunQ= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=heusel.eu; s=s1-ionos; t=1713306548; x=1713911348; i=christian@heusel.eu; bh=6ZuMU0XovAW0umCv+YpdexPnFfz2IsuCOBAjTp3FJ2o=; h=X-UI-Sender-Class:Date:From:To:Cc:Subject:Message-ID:References: MIME-Version:Content-Type:In-Reply-To:cc: content-transfer-encoding:content-type:date:from:message-id: mime-version:reply-to:subject:to; b=dzl3c9AJZ7GcdIopbTeRuoq56m93I8Yt1xokGjGIWv1YJSsgnfR64QMLSt+6Ak90 JGYqy2BB7Wx0eP7aPanOfZVK/ipYjPlCdjHdrNgxwoVUfezV6jghmpIsNYRsSf9s1 28lza0Vob4VoH2ahG6heOudRZhLRLBy3XYH7uQhSO+Kq9W/2eM526jguwwDCK+8U/ T2DfL7C7AjSYdiSLDA9SrbWRm93AA/W9Wrp9effGG1vhP5tD1kFmsnuZWWcYgEqA5 UZmTlkBQFjHr/f6oxVA9gP6ecmTw7D5/bm6oEPoUuhTAS6EuAMyv0iORCG1+Q80t6 67f2d3BSLWfwS0aw/g== X-UI-Sender-Class: 55c96926-9e95-11ee-ae09-1f7a4046a0f6 Received: from localhost ([141.70.80.5]) by mrelayeu.kundenserver.de (mreue108 [212.227.15.183]) with ESMTPSA (Nemesis) id 1N63JO-1spaXL3iUS-016L9Z; Wed, 17 Apr 2024 00:29:07 +0200 Date: Wed, 17 Apr 2024 00:29:06 +0200 From: Christian Heusel To: Nhat Pham Cc: Seth Jennings , Dan Streetman , Vitaly Wool , Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org, David Runge , "Richard W.M. Jones" , Mark W , regressions@lists.linux.dev, Johannes Weiner , Yosry Ahmed , Chengming Zhou Subject: Re: [REGRESSION] Null pointer dereference while shrinking zswap Message-ID: References: <3iccc6vjl5gminut3lvpl4va2lbnsgku5ei2d7ylftoofy3n2v@gcfdvtsq6dx2> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="5czpi4g6eex7fcrz" Content-Disposition: inline In-Reply-To: X-Provags-ID: V03:K1:gmC2JZMi3s3whUDW28Kj0ii/4DWoP1EWJUCNF7CPhIPfhADmGNy l1YW7zdala2X7vNZ8m9Jtb4u3L0KIOyFmdY7KyGOkHdxfr0iV9ncw9KjVyL5JYxtOjPuAVi 0xb4YzLb45wkOe8VAPFE5x7Y1D+dryhGyuuWyPtmG3enOd5uyb/6UV8UcR6oS2Y2YFoaV0V su1Si6zeJVIKmD4M0QwGg== UI-OutboundReport: notjunk:1;M01:P0:JTJsWm0H3nw=;IIKW3gMDzvjWMZIDGn60yl7s01D I14nwLf8N7tGNLzIdX0A1JO0saZSf9wo0TDOH2ObsXKMmg4ycreuaajIwWD3EXXkFRhC6RY4U EA7obFuyu4qd4pfPeT7iN3CZY3KfLTDgljXI1qIWEq3QW8+rRpdaPq1wF4VE2HVp9/BOSX6RK 3lIMYMZOX2E39ZlA1/PKhGWXvP4STHjigazOraT7B63NHgP005XprzjIa7eJg+iCynj+kdFA7 dPI9ANlCYVnrZck7iQ9BbxdRuL/t/hiR2qu7FNxmTxmtqhgXcE9zHE3XCfcBmke7Gte+Zx3/Y uvrBY1SAviLT1I+ZavRSrEz5rGQqHw6j9D7/ZJStLkMPgcr+7tcIu/rxeT8aNJQ23fenvqAjP NWZMoAFjtT2plfoVYiAHJwQnwCXYVJOSclqbYpjCcwc+U5Aux1FuCMbNAOD6j25nlJ0kbXxkf BgmD7/r6DbJ4pmVe7jiGEFM+yTNEuo52gZQrH6QY1WJlG33IMHXM8BjGo/yjuxmzT+TJYpE0Y +zi4+4o5TcuE7RvFwZKLbBnlvXXEq4+3YnuayOgCJNw/7IsgyVM0IolFGxF6haSwn/UvrCh4I j4LX2LpgGqU0tGYxtWX5JNfdx41x/m+S4bh4t6VSj0U66Dju3eBf3WQgGfUUR2C+eAgT/Z2l/ UNeW/pBx5duKBgR24I2J1dlV3ij+XS6aIYrv/aq1uKynHDCGJQTyw8LeF/W7tz461RQB4QfZr 0ZK2VV+Xg2G3eZA/Bod807sqdkyosJAup3oqSd10e9wi6nnwjlZTHY= X-Stat-Signature: 9hdaw6po7bu9brhnrdechhi1ac56weaz X-Rspamd-Queue-Id: 6FEDD18001D X-Rspamd-Server: rspam02 X-Rspam-User: X-HE-Tag: 1713306553-886791 X-HE-Meta: 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 oLOxPFYA BOMtEIaJD5um2noDvr/OdQsBi31pCUDtvtD7aGJlWL3A365NQJlkideQ/fGNWrVAxstz/BS2mTnJ3Q0WETTEDtJlVjdjd3DXP1pbLCBEE7wI0pynHJpAbu7KfJmqrNRCs7sZBwSWduOrly5mWKcxV/i8M8v8ujK5qclRUT9XO9TscOlUaWlwftcHBlknU/p9FPzuZsxyzxo1ZbTyPPXG33Zu/rP6J1iUzSKBVjuwnFYRdFCWPwuy/Gmz71y3rrlNUQaCMSxY0mtp19ZrkqxsC/Sr9T8p7IdtJtDIpSCIlf6RT+ohNywnLf6c4Dgv8WAJQOLA6G27DKW+nfZPxw2Gclm4kozPJptlA2VK8 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: --5czpi4g6eex7fcrz Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On 24/04/16 03:14PM, Nhat Pham wrote: > Is this one of the kernel versions that was broken? That looks a bit > odd, as zswap shrinker landed on 6.8... Yes that is the build at commit b5ba474f3f51 ("zswap: shrink zswap pool based on memory pressure") which is one of the kernel versions that is broken, although the version string seems a bit confusing. This is due to the build script invoking "make -s kernelrelease" which gives the following: $ git checkout b5ba474f3f51 [...] $ make -s kernelrelease 6.7.0-rc4-00158-gb5ba474f3f51 The commit is contained in v6.8+ only as you say, so its just confusing in the version string: $ git tag --contains b5ba474f3f51 | grep -v next v6.8 v6.8-rc1 v6.8-rc2 v6.8-rc3 v6.8-rc4 v6.8-rc5 v6.8-rc6 v6.8-rc7 v6.9-rc1 v6.9-rc2 v6.9-rc3 v6.9-rc4 Please see my initial report for the detailed bisection results and the link there to the bisection log. Cheers and thanks for looking into this! Christian --5czpi4g6eex7fcrz Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEb3ea3iR6a4oPcswTwEfU8yi1JYUFAmYe+7IACgkQwEfU8yi1 JYWS8RAAgarbioWmeY1qe9WCWZ+xmvQgbhyrqN5NNM2/hlM/Wv1K5bcdpNC0VZM8 YNnmmc8vQuXupu47pMKpMGFwCr6v8ztGgBs2A1kr/8Q4ESTFx0owXrgsgWOqcUsm PBVg/t8vwpHv1fWKM2Mf3/3tyJorggozCMluDArAsNyz5kFlMcsRVBkfVOVtqASW OR2kXl7B55YavHMgM7IPfQO0/Dr4/67NzWt2TCJMm1Mi+0GnJAglKt6wQUf4567g K2NPsuvbuwOGSKoEUQqfGYFadVtTac3RlDQ+4gw0HWR2Hs1/XBpdHOyLsOWhip9g KomaPpcJr305uXZAzQCediwPzrULHnvAZ+5o8SzNGOSqz3GMo6YaUuRuf5TWE9Wl Jp8yLkbOdIPDcQ7g+reEfwLXqyc4jMWzoeINImN7BbPcLq/oj8fqQXuVFoF4jajo /Qpl8U14ZLwsk/6VxwOy0VPRf4wkfC0njZNR19auU4090Q3ZLS9oY3IwzULOH57o 6yrQFUv1Jpjk+lf6cddwiCK0LCdvS3/ugtMv2H1HUdmdeqqQ2mUFPDunW06WuUns C69ojDexsqdATdr0dmC+7OK7qs+IQUzd6Izi8510CGhE8CzM7DGH3iNcNDU0VL4h ED27FWmDBlJ0neF5uCSCyuCdPyVKCA+XQ6rQCtFescGuZC9cSTI= =xoCM -----END PGP SIGNATURE----- --5czpi4g6eex7fcrz--