From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mta0.migadu.com (out-247.mta0.migadu.com [91.218.175.247]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A65263A8722 for ; Thu, 1 Oct 2026 16:09:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.247 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790870957; cv=none; b=Sr9tbF6t442nMWoO48XuGYe8VECwoSAQFEBr0YEp2sz3UZmmU+6uaaRdqCxxLGmYYUHgQR49ptfM73pnoOfN6nJAWDc8Fft7OV0g259ypRF1AAlfYltKPWw6/+ZYDVbYgsPIgoROCjno62a5vA40lAxHNhc6wxAssgSwFdMxuLc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790870957; c=relaxed/simple; bh=m2WhXekatGyTe7NNA2QDA9cNUaDy0yKLA81NRXFUVU4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=LQTyYWyJOlM1v3w7kNyGOIU5qL8tLsGdVnd+S6IYB7AGCdiH/IqG06FlXGnRE0ZVtRztgO3xN4k13ITb9CL3xXlCkg5KzOk1HPPgKnbvCoup3KnX9rrAMc3zt+p5KvVMpI36bMS+pQmtpQyIuujsM9osWoPGb03UPBkPHacbwYA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=QVBbfxux; arc=none smtp.client-ip=91.218.175.247 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="QVBbfxux" X-Envelope-To: linux-kernel@vger.kernel.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-kernel@vger.kernel.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> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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