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 2F1F2CFB45B for ; Tue, 8 Oct 2024 09:17:58 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 424EF6B0083; Tue, 8 Oct 2024 05:17:57 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 3D4046B0085; Tue, 8 Oct 2024 05:17:57 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 24DDE6B0088; Tue, 8 Oct 2024 05:17:57 -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 06D4A6B0083 for ; Tue, 8 Oct 2024 05:17:57 -0400 (EDT) Received: from smtpin08.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay09.hostedemail.com (Postfix) with ESMTP id 7AB2181A96 for ; Tue, 8 Oct 2024 09:17:55 +0000 (UTC) X-FDA: 82649882952.08.7E83A96 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.223.130]) by imf26.hostedemail.com (Postfix) with ESMTP id F3F60140004 for ; Tue, 8 Oct 2024 09:17:53 +0000 (UTC) Authentication-Results: imf26.hostedemail.com; dkim=pass header.d=suse.cz header.s=susede2_rsa header.b=IGEf2CJO; dkim=pass header.d=suse.cz header.s=susede2_ed25519 header.b=SRPHcY7x; dkim=pass header.d=suse.cz header.s=susede2_rsa header.b=IGEf2CJO; dkim=pass header.d=suse.cz header.s=susede2_ed25519 header.b=SRPHcY7x; dmarc=none; spf=pass (imf26.hostedemail.com: domain of vbabka@suse.cz designates 195.135.223.130 as permitted sender) smtp.mailfrom=vbabka@suse.cz ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1728378975; a=rsa-sha256; cv=none; b=YEUyHzTeOW54NMvsHmUqa7Szh0xSqEgAbphM8TjKF/o/NYOCnVZhjMt7D0U2B/x9iuKLqm sYLpROOSeLjszrvP92WaY4t0CsQWRpTX/PbJgLcgT2H5I8WfThzOPU7FtqBzobGJCmU8b+ lxeC0oN+a763emukQBdzECJyH06XNtE= ARC-Authentication-Results: i=1; imf26.hostedemail.com; dkim=pass header.d=suse.cz header.s=susede2_rsa header.b=IGEf2CJO; dkim=pass header.d=suse.cz header.s=susede2_ed25519 header.b=SRPHcY7x; dkim=pass header.d=suse.cz header.s=susede2_rsa header.b=IGEf2CJO; dkim=pass header.d=suse.cz header.s=susede2_ed25519 header.b=SRPHcY7x; dmarc=none; spf=pass (imf26.hostedemail.com: domain of vbabka@suse.cz designates 195.135.223.130 as permitted sender) smtp.mailfrom=vbabka@suse.cz ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1728378975; 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=/k5ic9K3gNxC3u8bWogoLkBxUHFb+xJEPrMkOBjKmmM=; b=FM2RWhH0wpRtRrQ3zUWvBMw5pOuhzYA+31BtokTXfLlOczUNbRACn6gQ0Jxsw3IJk8y2Mf MadJyIR08RqhJrUTU+niJyZoosDAL4ihp8d7M0rS6ek8FWunXeQXUDLs8o98ewWy6WykQp fxyoW05g73O5jkuG7tnEuum2RvPzyVE= Received: from imap1.dmz-prg2.suse.org (unknown [10.150.64.97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 47BDE21CD6; Tue, 8 Oct 2024 09:17:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1728379072; h=from:from:reply-to: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=/k5ic9K3gNxC3u8bWogoLkBxUHFb+xJEPrMkOBjKmmM=; b=IGEf2CJO5J8Fd1g1/zesrxgrA9Xf/ZAqSZLFH4sgtEKwihjM+r2GjrneJ4BafUsnSXco+B Y98jnBKI2fBbkJH8LnXDjtSA3ylU+qazJTb7jreL5jkpxtG3DEKz5w70A2PaeJRuhRMgf8 iRm/3cXsjABSu6SYj0W7euvV3ZRn5dE= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1728379072; h=from:from:reply-to: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=/k5ic9K3gNxC3u8bWogoLkBxUHFb+xJEPrMkOBjKmmM=; b=SRPHcY7xkOgsmELuPfBra/7xLM9ysPNH8V6LGrmr0QiifQASJK0C+99EjfdDWAqgyGxDNc YbC+b0L6AzeVFbAA== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1728379072; h=from:from:reply-to: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=/k5ic9K3gNxC3u8bWogoLkBxUHFb+xJEPrMkOBjKmmM=; b=IGEf2CJO5J8Fd1g1/zesrxgrA9Xf/ZAqSZLFH4sgtEKwihjM+r2GjrneJ4BafUsnSXco+B Y98jnBKI2fBbkJH8LnXDjtSA3ylU+qazJTb7jreL5jkpxtG3DEKz5w70A2PaeJRuhRMgf8 iRm/3cXsjABSu6SYj0W7euvV3ZRn5dE= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1728379072; h=from:from:reply-to: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=/k5ic9K3gNxC3u8bWogoLkBxUHFb+xJEPrMkOBjKmmM=; b=SRPHcY7xkOgsmELuPfBra/7xLM9ysPNH8V6LGrmr0QiifQASJK0C+99EjfdDWAqgyGxDNc YbC+b0L6AzeVFbAA== Received: from imap1.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id 30F281340C; Tue, 8 Oct 2024 09:17:52 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id xa6GC8D4BGemMwAAD6G6ig (envelope-from ); Tue, 08 Oct 2024 09:17:52 +0000 Message-ID: <49469e9f-ca42-4250-b949-66247f623c3d@suse.cz> Date: Tue, 8 Oct 2024 11:17:51 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2] mm/slub: Avoid list corruption when removing a slab from the full list Content-Language: en-US To: "Christoph Lameter (Ampere)" , Hyeonggon Yoo <42.hyeyoo@gmail.com> Cc: "yuan.gao" , penberg@kernel.org, rientjes@google.com, iamjoonsoo.kim@lge.com, akpm@linux-foundation.org, roman.gushchin@linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <20241007091850.16959-1-yuan.gao@ucloud.cn> <916bea8e-0e79-c561-f8e8-b3c7fa026161@gentwo.org> <006695cb-368c-9afc-80b5-29338e85ab99@gentwo.org> From: Vlastimil Babka Autocrypt: addr=vbabka@suse.cz; keydata= xsFNBFZdmxYBEADsw/SiUSjB0dM+vSh95UkgcHjzEVBlby/Fg+g42O7LAEkCYXi/vvq31JTB KxRWDHX0R2tgpFDXHnzZcQywawu8eSq0LxzxFNYMvtB7sV1pxYwej2qx9B75qW2plBs+7+YB 87tMFA+u+L4Z5xAzIimfLD5EKC56kJ1CsXlM8S/LHcmdD9Ctkn3trYDNnat0eoAcfPIP2OZ+ 9oe9IF/R28zmh0ifLXyJQQz5ofdj4bPf8ecEW0rhcqHfTD8k4yK0xxt3xW+6Exqp9n9bydiy tcSAw/TahjW6yrA+6JhSBv1v2tIm+itQc073zjSX8OFL51qQVzRFr7H2UQG33lw2QrvHRXqD Ot7ViKam7v0Ho9wEWiQOOZlHItOOXFphWb2yq3nzrKe45oWoSgkxKb97MVsQ+q2SYjJRBBH4 8qKhphADYxkIP6yut/eaj9ImvRUZZRi0DTc8xfnvHGTjKbJzC2xpFcY0DQbZzuwsIZ8OPJCc LM4S7mT25NE5kUTG/TKQCk922vRdGVMoLA7dIQrgXnRXtyT61sg8PG4wcfOnuWf8577aXP1x 6mzw3/jh3F+oSBHb/GcLC7mvWreJifUL2gEdssGfXhGWBo6zLS3qhgtwjay0Jl+kza1lo+Cv BB2T79D4WGdDuVa4eOrQ02TxqGN7G0Biz5ZLRSFzQSQwLn8fbwARAQABzSBWbGFzdGltaWwg QmFia2EgPHZiYWJrYUBzdXNlLmN6PsLBlAQTAQoAPgIbAwULCQgHAwUVCgkICwUWAgMBAAIe AQIXgBYhBKlA1DSZLC6OmRA9UCJPp+fMgqZkBQJkBREIBQkRadznAAoJECJPp+fMgqZkNxIQ ALZRqwdUGzqL2aeSavbum/VF/+td+nZfuH0xeWiO2w8mG0+nPd5j9ujYeHcUP1edE7uQrjOC Gs9sm8+W1xYnbClMJTsXiAV88D2btFUdU1mCXURAL9wWZ8Jsmz5ZH2V6AUszvNezsS/VIT87 AmTtj31TLDGwdxaZTSYLwAOOOtyqafOEq+gJB30RxTRE3h3G1zpO7OM9K6ysLdAlwAGYWgJJ V4JqGsQ/lyEtxxFpUCjb5Pztp7cQxhlkil0oBYHkudiG8j1U3DG8iC6rnB4yJaLphKx57NuQ PIY0Bccg+r9gIQ4XeSK2PQhdXdy3UWBr913ZQ9AI2usid3s5vabo4iBvpJNFLgUmxFnr73SJ KsRh/2OBsg1XXF/wRQGBO9vRuJUAbnaIVcmGOUogdBVS9Sun/Sy4GNA++KtFZK95U7J417/J Hub2xV6Ehc7UGW6fIvIQmzJ3zaTEfuriU1P8ayfddrAgZb25JnOW7L1zdYL8rXiezOyYZ8Fm ZyXjzWdO0RpxcUEp6GsJr11Bc4F3aae9OZtwtLL/jxc7y6pUugB00PodgnQ6CMcfR/HjXlae h2VS3zl9+tQWHu6s1R58t5BuMS2FNA58wU/IazImc/ZQA+slDBfhRDGYlExjg19UXWe/gMcl De3P1kxYPgZdGE2eZpRLIbt+rYnqQKy8UxlszsBNBFsZNTUBCACfQfpSsWJZyi+SHoRdVyX5 J6rI7okc4+b571a7RXD5UhS9dlVRVVAtrU9ANSLqPTQKGVxHrqD39XSw8hxK61pw8p90pg4G /N3iuWEvyt+t0SxDDkClnGsDyRhlUyEWYFEoBrrCizbmahOUwqkJbNMfzj5Y7n7OIJOxNRkB IBOjPdF26dMP69BwePQao1M8Acrrex9sAHYjQGyVmReRjVEtv9iG4DoTsnIR3amKVk6si4Ea X/mrapJqSCcBUVYUFH8M7bsm4CSxier5ofy8jTEa/CfvkqpKThTMCQPNZKY7hke5qEq1CBk2 wxhX48ZrJEFf1v3NuV3OimgsF2odzieNABEBAAHCwXwEGAEKACYCGwwWIQSpQNQ0mSwujpkQ PVAiT6fnzIKmZAUCZAUSmwUJDK5EZgAKCRAiT6fnzIKmZOJGEACOKABgo9wJXsbWhGWYO7mD 8R8mUyJHqbvaz+yTLnvRwfe/VwafFfDMx5GYVYzMY9TWpA8psFTKTUIIQmx2scYsRBUwm5VI EurRWKqENcDRjyo+ol59j0FViYysjQQeobXBDDE31t5SBg++veI6tXfpco/UiKEsDswL1WAr tEAZaruo7254TyH+gydURl2wJuzo/aZ7Y7PpqaODbYv727Dvm5eX64HCyyAH0s6sOCyGF5/p eIhrOn24oBf67KtdAN3H9JoFNUVTYJc1VJU3R1JtVdgwEdr+NEciEfYl0O19VpLE/PZxP4wX PWnhf5WjdoNI1Xec+RcJ5p/pSel0jnvBX8L2cmniYnmI883NhtGZsEWj++wyKiS4NranDFlA HdDM3b4lUth1pTtABKQ1YuTvehj7EfoWD3bv9kuGZGPrAeFNiHPdOT7DaXKeHpW9homgtBxj 8aX/UkSvEGJKUEbFL9cVa5tzyialGkSiZJNkWgeHe+jEcfRT6pJZOJidSCdzvJpbdJmm+eED w9XOLH1IIWh7RURU7G1iOfEfmImFeC3cbbS73LQEFGe1urxvIH5K/7vX+FkNcr9ujwWuPE9b 1C2o4i/yZPLXIVy387EjA6GZMqvQUFuSTs/GeBcv0NjIQi8867H3uLjz+mQy63fAitsDwLmR EP+ylKVEKb0Q2A== In-Reply-To: <006695cb-368c-9afc-80b5-29338e85ab99@gentwo.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: F3F60140004 X-Rspam-User: X-Rspamd-Server: rspam05 X-Stat-Signature: 5kffz8u994hwzxswri8dzu814x83p5ij X-HE-Tag: 1728379073-16053 X-HE-Meta: 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 Lq2QH5Lz kvbXzok5e7h06HLW4brwRe2N3hww4q/zWDlXZ66h4kcTJk6C1xObrJhjkMamghR791UH3aLnkCtmVTZ23ZO9Javip5iyY767mLpGVnPL7u96DeZbEfuPF1IxU/n49P7akUZmMuN4VY+6NqQQ+Vv56SwjIRY6ak2uppcitnJdxlgSzzjS7UwqIpoizW4jwc1hXHZceL1poZy58BzHGAZVvFADri+iRSthN5ArLKX/HqHtCourJCLg2YGDCW/TXY6MBUjv87b3f3F+6dPX8l+/+K6jVHohNPfcslfxSvfAPZsd2A6nFyw8v1HPd/lu0hgsDXIKf+klJKUE+AUiPnugc9H5v+BYt72lVG73r6NakJwo53bfMK8yFF3bb1DyDkgNiSX2r X-Bogosity: Ham, tests=bogofilter, spamicity=0.002027, 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 10/7/24 18:40, Christoph Lameter (Ampere) wrote: > > list_del() in remove_partial() sets poison values for next/prev so there > should no list > corruption but a failure showing the poison values. Yeah that's what is reported, but there's still a mention of list corruption: [ 4277.385669] list_del corruption, ffffea00044b3e50->next is LIST_POISON1 (dead000000000100) > static inline void list_del(struct list_head *entry) > { > __list_del_entry(entry); > entry->next = LIST_POISON1; > entry->prev = LIST_POISON2; > } >