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 595E9CA5FD4 for ; Thu, 1 Oct 2026 16:09:18 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 26D4C6B0092; Thu, 1 Oct 2026 12:09:17 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 245396B0093; Thu, 1 Oct 2026 12:09:17 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 182966B0096; Thu, 1 Oct 2026 12:09:17 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id EB6B66B0092 for ; Thu, 1 Oct 2026 12:09:16 -0400 (EDT) Received: from smtpin10.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay04.hostedemail.com (Postfix) with ESMTP id 884AC1A046A for ; Thu, 1 Oct 2026 16:09:16 +0000 (UTC) X-FDA: 85274541912.10.A765C33 Received: from mta0.migadu.com (out-248.mta0.migadu.com [91.218.175.248]) by imf27.hostedemail.com (Postfix) with ESMTP id 7C8EA40005 for ; Thu, 1 Oct 2026 16:09:14 +0000 (UTC) Authentication-Results: imf27.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=QVBbfxux; dmarc=pass (policy=none) header.from=linux.dev; spf=pass (imf27.hostedemail.com: domain of lance.yang@linux.dev designates 91.218.175.248 as permitted sender) smtp.mailfrom=lance.yang@linux.dev ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1790870954; 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=m2WhXekatGyTe7NNA2QDA9cNUaDy0yKLA81NRXFUVU4=; b=s6ByQ0Xn+z8XDb3b911qyEA3jMCscYf+tf3hJEcmKHCmcQX+VfHhE3QZz54XnSu8EUMz2x 0GU5A4MBKIwWN7Fd3egzSmcv660j9R6E/O9ypJjd6D2AJvgsddyUGnJBp7eWhZBQ1Vl22/ kbd7MTSxhKGzWsWKihvucxDLfmvzGKY= ARC-Authentication-Results: i=1; imf27.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=QVBbfxux; dmarc=pass (policy=none) header.from=linux.dev; spf=pass (imf27.hostedemail.com: domain of lance.yang@linux.dev designates 91.218.175.248 as permitted sender) smtp.mailfrom=lance.yang@linux.dev ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1790870954; b=IEViZGWIRwpqPRSBq960i/q6DCeWfAXlXZzQRQBJoQE3movX3lL4fC/3eBhT75PkvVQz3D Ty/CtT160BWrn7TWBtEXqsnc7wwcgAQtZm36RaQCaemsZXjdMsCJHGcKsijlqFu/zoEj3I J/VUFK27icwhpDVk12nrIGbn1iK6hO8= X-Envelope-To: linux-mm@kvack.org DKIM-Signature: a=rsa-sha256; bh=m2WhXekatGyTe7NNA2QDA9cNUaDy0yKLA81NRXFUVU4=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1790870953; v=1; x=1791475753; b=QVBbfxuxgsYOrmjIcMSb0o43Duk2Mj2lXbjKD2+nC0HWiqdCb2VIC5EzrkeCyoxIMnRwV086 8TxEEnCIaDp80rwWDHlKGgjqVJ/04q3CTGGEx1Jy31O2Af2/myWegCaeMiqGyadEcOdGFWLKCIe 1qqH5X0KwsFlAMkNZPZaQIzc= X-Envelope-To: linux-mm@kvack.org Received: by smtp.migadu.com with ESMTPS id 991aeb1c7099deb0; Thu, 01 Oct 2026 16:09:13 +0000 X-Mizu-Trace-ID: 991aeb1c7099deb0 X-Migadu-Flow: FLOW_OUT From: Lance Yang To: songmuchun@bytedance.com Cc: maddy@linux.ibm.com, rppt@kernel.org, akpm@linux-foundation.org, david@kernel.org, mpe@ellerman.id.au, npiggin@gmail.com, chleroy@kernel.org, ritesh.list@gmail.com, sshegde@linux.ibm.com, ljs@kernel.org, liam@infradead.org, vbabka@kernel.org, surenb@google.com, mhocko@suse.com, qi.zheng@linux.dev, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, muchun.song@linux.dev, Lance Yang Subject: Re: [PATCH v3 6/6] mm/mm_init: add zone mismatch warning during page init Date: Fri, 2 Oct 2026 00:09:07 +0800 Message-ID: <20261001160907.25429-1-lance.yang@linux.dev> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20260929053231.66085-7-songmuchun@bytedance.com> References: <20260929053231.66085-7-songmuchun@bytedance.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Stat-Signature: fumpp9ztnqay5wu3px7qo3yfduhf7mzx X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 7C8EA40005 X-HE-Tag: 1790870954-641603 X-HE-Meta: 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 yWoy0n6t UAvAfXRJT0Vf5+0G2dCsWk/0A41HuZQYhcR1KNzjVwN/utfqOde6A2wPSlybFCH9ND1wX7uGdnm5iBONN8vdWb3I6y6QHnsb28ak7rSdxEFfCaaEpvqxqFNam2ZWuyiOnhoqxsTNMOESLmb/pJEMReOJnZsh0yJqkcs0DbkASGPlO44rZBmhvs0Z2lifM+dcq5hypj6fgpvahEY0Coz2g1Wpsgc+zGf2uIThIXLA5+tQ+9yKl0u1Pj4FIs/8MvTU9al32S1CQ7qrPzKUHdtpumcp/Mew8Nfsk3rVaTmSCTRiKqLnUeZXRi0qUh8ZAIUiJPXKG2MqbnTY46wIupLhAR5z552jiJm66Zhs7fIXOEv5URAGKZjAV9IKIWQW3kzK1bdwB Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, Sep 29, 2026 at 01:32:31PM +0800, Muchun Song wrote: >For vmemmap-optimized sections, tail struct pages may be backed by >shared vmemmap pages. Those shared pages must carry the same page zone >ID as the struct pages initialized for the section. > >Warn in __init_single_page() if the shared tail page has a different >page_zone_id(), which would indicate inconsistent initialization. > >Signed-off-by: Muchun Song >Acked-by: Qi Zheng >--- Useful sanity check :) Feel free to add: Reviewed-by: Lance Yang