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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 56D00C0015E for ; Thu, 13 Jul 2023 11:19:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234079AbjGMLTq (ORCPT ); Thu, 13 Jul 2023 07:19:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58290 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232181AbjGMLTo (ORCPT ); Thu, 13 Jul 2023 07:19:44 -0400 Received: from wp530.webpack.hosteurope.de (wp530.webpack.hosteurope.de [80.237.130.52]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8092C198A for ; Thu, 13 Jul 2023 04:19:43 -0700 (PDT) Received: from [2a02:8108:8980:2478:8cde:aa2c:f324:937e]; authenticated by wp530.webpack.hosteurope.de running ExIM with esmtpsa (TLS1.3:ECDHE_RSA_AES_128_GCM_SHA256:128) id 1qJuMG-0002IM-SL; Thu, 13 Jul 2023 13:19:40 +0200 Message-ID: <358822fd-4dca-865d-1330-39897fb16082@leemhuis.info> Date: Thu, 13 Jul 2023 13:19:40 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.13.0 Subject: Re: [PATCH v2 12/32] mm/vmalloc: vmalloc_to_page() use pte_offset_kernel() Content-Language: en-US, de-DE To: linux-mm@kvack.org Cc: linux-arm-kernel@lists.infradead.org, LKML References: <696386a-84f8-b33c-82e5-f865ed6eb39@google.com> <42279f1f-7b82-40dc-8546-86171018729c@sirena.org.uk> <901ae88d-ad0c-4e9d-b199-f1566cc62a00@lucifer.local> <977ddee4-35f0-fcd1-2fd-1c3057e7ea2a@google.com> <591b5253-47f0-440c-84b6-7786ff59667d@sirena.org.uk> From: "Linux regression tracking #update (Thorsten Leemhuis)" Reply-To: Linux regressions mailing list In-Reply-To: <591b5253-47f0-440c-84b6-7786ff59667d@sirena.org.uk> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-bounce-key: webpack.hosteurope.de;regressions@leemhuis.info;1689247183;b4194be6; X-HE-SMSGID: 1qJuMG-0002IM-SL Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11.07.23 19:57, Mark Brown wrote: > On Tue, Jul 11, 2023 at 09:13:18AM -0700, Hugh Dickins wrote: >> On Tue, 11 Jul 2023, Mark Brown wrote: >>> On Mon, Jul 10, 2023 at 09:34:42PM -0700, Hugh Dickins wrote: >>> >>>> I suppose I should ask you to try reverting this 0d1c81edc61e alone >>>> from 6.5-rc1: the consistency of your bisection implies that it will >>>> "fix" the issues, and it is a commit which we could drop. It makes >>>> me a little nervous, applying userspace-pagetable validation to kernel >>>> pagetables, so I don't want to drop it; and it would really be cargo- >>>> culting to drop it without understanding. But we could drop it. >>> >>> I did look at that, it doesn't revert cleanly by itself. ... >> >> Right, that ptep_get() wrapper on the next line came in on top. >> The patch to revert just 0d1c81edc61e is this: > > Still investigating but I'm pretty convinced this is nothing to do with > your commit/series and is just common or garden memory corruption that > just happens to get tickled by your changes. Sorry for the noise. In that case: #regzbot introduced v6.4..v6.5-rc1 #regzbot ignore-activity Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) -- Everything you wanna know about Linux kernel regression tracking: https://linux-regtracking.leemhuis.info/about/#tldr That page also explains what to do if mails like this annoy you.