From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CB77F606EE84 for ; Thu, 5 Nov 2026 12:57:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=Mf42wsJc; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=dxKzc6mj DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Unsubscribe-Post:List-Owner; bh=ReGNOaOBCMvIg7gK/G7qltHWui+c1mv7BQpRUdRVU2o=; b=Mf42wsJcuTlb4HE6W6VjOCJZxi N9b6fnbRF0eurIsiWnpf2O9gP9kPxVsUXMaGfw6sfS5meyLLMbEkr/+7B6p0K/rXIpC/gxSeccb3C mSFE2ugEYk/yAOOftMulaEOQTDqpV6mnPhJnz1pRmsSAIXy2Qbk0OPdzKHlTXM9WNGHpeHj0qXrKb w6RM/79QwxF69N8zNi3cFedhUQY9qfmPSot3Tmj45IYDj7HglzM5QCyqFkM6CTwIbjXCi1AGHELCc Z3Vj7+Uvv4Rl7q4SPTu1NOqXUoPQgUit/nQ+TZbe97RIDa/0I5UTadrL/4HcR+ViaRB42HjKNwpre AAmuNdug==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xOx1m-00000009273-2BV8; Thu, 05 Nov 2026 12:57:14 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.100.1 #2 (Red Hat Linux)) id 1xOx1k-00000009261-4Bgs for kexec@lists.infradead.org; Thu, 05 Nov 2026 12:57:13 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 5D882605F4; Thu, 5 Nov 2026 12:57:12 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 010D61F00A1C; Thu, 5 Nov 2026 12:57:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793883432; bh=ReGNOaOBCMvIg7gK/G7qltHWui+c1mv7BQpRUdRVU2o=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=dxKzc6mjgpEI/gtpOZyuQeLjQvddHurnQsGDoMpXnjknrfY2hKAiYfqUmgA557koH e7jmaCP+YJaAZRcy5orhOkgHcEFid9SLfIXq5prOVlqYQVEZZwtmz9vUtd5273iQxI UKxAfeO0bjeO9WLaog9V0U61zMaIpiIZ7UeSyqBH9eym1B0XA4KlbnQtdJ0bW7qW6B Z1EHYFW28+7LtXyj9olREmKA7WH/g4bDfXZqlXZTqiELFDFk2194EltzQCAk3l7bUi BrmfDnlOnDQgNxM40UatpYAMCFdANbrAM6XbiFTbSkp5ZSQsr91noJlmtNvMpPf0XO IQZ1KqUo2KWEA== Date: Thu, 5 Nov 2026 14:57:02 +0200 From: Mike Rapoport To: George Guo Cc: pasha.tatashin@soleen.com, pratyush@kernel.org, chenhuacai@kernel.org, ardb@kernel.org, shuah@kernel.org, ilias.apalodimas@linaro.org, akpm@linux-foundation.org, baoquan.he@linux.dev, ruirui.yang@linux.dev, guodongtai@kylinos.cn, kernel@xen0n.name, graf@amazon.com, liukexin@kylinos.cn, loongarch@lists.linux.dev, linux-kernel@vger.kernel.org, kexec@lists.infradead.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-efi@vger.kernel.org Subject: Re: [PATCH v6 5/8] LoongArch: Allow memblock arrays to resize Message-ID: References: <20261029172956.20791-1-dongtai.guo@linux.dev> <20261029172956.20791-6-dongtai.guo@linux.dev> X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261029172956.20791-6-dongtai.guo@linux.dev> X-BeenThere: kexec@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "kexec" X-Spam-Status: No, score=-5.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 On Fri, Oct 30, 2026 at 02:29:52AM +0900, George Guo wrote: > From: George Guo > > LoongArch never calls memblock_allow_resize(), so the reserved region > array cannot grow beyond INIT_MEMBLOCK_RESERVED_REGIONS entries > (INIT_MEMBLOCK_REGIONS + NR_CPUS). This might be something to fix independent of KHO. Huacai, What's the reason LoongArch never enables memblock resizing and why it defines INIT_MEMBLOCK_RESERVED_REGIONS to include NR_CPUS? -- Sincerely yours, Mike.