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 53A4AC433F5 for ; Wed, 25 May 2022 23:07:46 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 7E1998D0003; Wed, 25 May 2022 19:07:45 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 7908C8D0001; Wed, 25 May 2022 19:07:45 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 656738D0003; Wed, 25 May 2022 19:07:45 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id 55EAB8D0001 for ; Wed, 25 May 2022 19:07:45 -0400 (EDT) Received: from smtpin29.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id 17AF734FA5 for ; Wed, 25 May 2022 23:07:45 +0000 (UTC) X-FDA: 79505804490.29.002F8DA Received: from mail-ej1-f41.google.com (mail-ej1-f41.google.com [209.85.218.41]) by imf28.hostedemail.com (Postfix) with ESMTP id B3EBCC0025 for ; Wed, 25 May 2022 23:07:11 +0000 (UTC) Received: by mail-ej1-f41.google.com with SMTP id rs12so32749534ejb.13 for ; Wed, 25 May 2022 16:07:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=rhZHhPtlN8R7i0B/YpUEdtpRE1Mi/VoabZq2hM6NjXc=; b=bVsV616n58twV6qsTo0cPivFx66Vcij9oJRcp2WH1X5FqI/MZDHKuyhjdX5C6ec689 sjIkBbCkPRBJfJcC29/ryFx96LBch0w/XUKGov4IHTlIVeMLQ8TjfzfI5fWoJ3pg6Y9S 5u4MuYVRSOFInddt6Aqu6XCXrnqbOEbHeuiNM= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=rhZHhPtlN8R7i0B/YpUEdtpRE1Mi/VoabZq2hM6NjXc=; b=B62XWs8lKsY/DFRj+Rdl/IfXtiN+h52GX2/s8Z1F5yYgOSdDxGG1XsVxPcinb0RHVs 7Z9Vs/xnqlqdYKREuCE+a/uxIscAOplIwJDLfeyz/aPf5DbxBVu3OmYobl4TrjXcRNZe EzWBj27a6L7qXrw/7UtDeMRYlvtVzrBPEG8Kj+2qrasJCGEX/MX5uXXTfRRCDiObtTuk HEEd59sRAKAdK4FPAxncikM866xsOQVi84hmNP6WnkvBP68NOoEOmZghfo+wQlz0mj6M lfoFhhv17yzFjp+3i4HL+K2+zlqDIXUr4tSVg9ci7SiAlnAVRNqGXrl1VHRh47Wat0jr C8pw== X-Gm-Message-State: AOAM530JtJ8eMo6FOzttTpeGhNitxLbm+JaZrc4Vnxn1H1RMGrhEZMAC B3x7ywq2bQY88Yz1hCrkXbF3x6YQ0KGRI4vd/qI= X-Google-Smtp-Source: ABdhPJz/oNlLpfsBl5TPuT9GzVek6ClyuNaRCqrmt9H9LVmHG5ycEjwY1WX96WWhkJLRpX5YTz/dZA== X-Received: by 2002:a17:907:7b8c:b0:6fe:d41d:b6a3 with SMTP id ne12-20020a1709077b8c00b006fed41db6a3mr17101679ejc.92.1653520062994; Wed, 25 May 2022 16:07:42 -0700 (PDT) Received: from mail-wr1-f54.google.com (mail-wr1-f54.google.com. [209.85.221.54]) by smtp.gmail.com with ESMTPSA id w28-20020a50d79c000000b0042bd6630a14sm356615edi.87.2022.05.25.16.07.41 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 25 May 2022 16:07:41 -0700 (PDT) Received: by mail-wr1-f54.google.com with SMTP id t13so35037wrg.9 for ; Wed, 25 May 2022 16:07:41 -0700 (PDT) X-Received: by 2002:a5d:59ac:0:b0:20e:6fd6:88c1 with SMTP id p12-20020a5d59ac000000b0020e6fd688c1mr26524571wrr.442.1653520060789; Wed, 25 May 2022 16:07:40 -0700 (PDT) MIME-Version: 1.0 References: <8062f61e-5a4d-00a5-be1a-7921d3277e9d@suse.cz> <6cdbe746-2c6f-f698-11d4-9f86d2c4e5cc@suse.cz> In-Reply-To: From: Linus Torvalds Date: Wed, 25 May 2022 16:07:24 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [GIT PULL] slab for 5.19 To: Vlastimil Babka Cc: David Rientjes , Joonsoo Kim , Christoph Lameter , Pekka Enberg , Andrew Morton , "linux-mm@kvack.org" , LKML , patches@lists.linux.dev, Roman Gushchin , Hyeonggon Yoo <42.hyeyoo@gmail.com>, Geert Uytterhoeven , Alexander Potapenko Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: B3EBCC0025 X-Stat-Signature: 7haxcqurn58om7wtn8h5c363c6uein6d Authentication-Results: imf28.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=google header.b=bVsV616n; spf=pass (imf28.hostedemail.com: domain of torvalds@linuxfoundation.org designates 209.85.218.41 as permitted sender) smtp.mailfrom=torvalds@linuxfoundation.org; dmarc=none X-Rspam-User: X-HE-Tag: 1653520031-23149 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 Wed, May 25, 2022 at 3:01 PM Vlastimil Babka wrote: > > Yes, running rcutorture will trigger that stackdepot allocation, but as > that's in RCU debugging part of config, I considered it in the same > category as enabling slub debugging. Yeah, I don't think rcutorture is a problem per se, it was more an example of a random interaction that doesn't actually seem to make much sense. As far as I can tell, there is nothing in rcutorture that actually wants that stack trace, and it seems to be doing just a test of the object dumping working. So it was more the oddity and randomness of it that made me go "Whaah?" There might be others hiding elsewhere, that rcutorture use just happened to use the flag explicitly. Linus