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 EFFF9C282EC for ; Tue, 11 Mar 2025 21:07:23 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 49AE6280002; Tue, 11 Mar 2025 17:07:21 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 44A6B280001; Tue, 11 Mar 2025 17:07:21 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 31239280002; Tue, 11 Mar 2025 17:07:21 -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 13C2C280001 for ; Tue, 11 Mar 2025 17:07:21 -0400 (EDT) Received: from smtpin02.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay05.hostedemail.com (Postfix) with ESMTP id E2DE853BC8 for ; Tue, 11 Mar 2025 21:07:22 +0000 (UTC) X-FDA: 83210505924.02.2CC3EB4 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf26.hostedemail.com (Postfix) with ESMTP id 3B557140007 for ; Tue, 11 Mar 2025 21:07:21 +0000 (UTC) Authentication-Results: imf26.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=C1iHqPEK; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf26.hostedemail.com: domain of rppt@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=rppt@kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1741727241; a=rsa-sha256; cv=none; b=ChyCyaBkDFVVCuLp2/NmQFE9L+aQm+rQS+XSiyUq681OkEWk2fw+WzrlO+PSnU3JZh/fMk 4nDOpugORpkXLPydO+tVsAxUhtZRbKSF6SGMJwuMafPXvGrKIt4YNFladUX3MwUP+7DDRI fx0oiLDMate+vAGb4/RW5jX2zi7Mi6k= ARC-Authentication-Results: i=1; imf26.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=C1iHqPEK; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf26.hostedemail.com: domain of rppt@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=rppt@kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1741727241; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=kjtbj0rMoRhWzV3nxSJsuSOSdwzNUEUPeZ0N5AhKsuE=; b=1B4BepENJtUS8Da+zAWBKb6RRrSSk31zSYonGUmFkG9bKAdncN9uB0VVswUXwNcw/0ROE9 Q2VW1vyAT4cMUHjmY+aC7uDsEebpcsnyUFm20D+mZChS2QBR172jKoGZ5R3Ay2bcm/HwrP ATeZrf5XoPwsoKxffI88DV/EwwX3MXw= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 8DFAB5C06AD; Tue, 11 Mar 2025 21:05:03 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 25BDBC4CEE9; Tue, 11 Mar 2025 21:07:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1741727240; bh=rNimSVN80xWe5rcUWVjkmfCgcoptPPb9Jv9OZmpPkd4=; h=Date:From:To:Subject:References:In-Reply-To:From; b=C1iHqPEKFmOZ1AdRri3tQAqNRCUTPzRJDLMlo7w9miEeyKlINu4yaWAdRhzIs0paH jfkQRnK0XKmpkNOb3HtMEZGNKykGUrnuj1eWXqoXCuk4rS12Ikm530MvS19u7Mf4J3 tH/UJQzFzlpWZeIQ8GU3qF5sOrZxvuNLkXsoHttkETnhl82ybMrj85LRdzmLv+hBla wPX3Fb5aCd0lbfNzAcpKqyB8kieIZqzft75UbkCyh4kRvACkkIIDZ2qg0qRSwpfeTU KbinhUeYSjsKqONFQqPFUHd8wwI3NPOSMI/Iwxdn5G8aIP9ZQgz2eFjKKr2GfyLFcr AI9TcpmJNf73w== Date: Tue, 11 Mar 2025 23:06:56 +0200 From: Mike Rapoport To: Andrew Morton , Alexander Gordeev , Andreas Larsson , Andy Lutomirski , Arnd Bergmann , Borislav Petkov , Brian Cain , Catalin Marinas , Dave Hansen , "David S. Miller" , Dinh Nguyen , Geert Uytterhoeven , Gerald Schaefer , Guo Ren , Heiko Carstens , Helge Deller , Huacai Chen , Ingo Molnar , Jiaxun Yang , Johannes Berg , John Paul Adrian Glaubitz , Madhavan Srinivasan , Matt Turner , Max Filippov , Michael Ellerman , Michal Simek , Palmer Dabbelt , Peter Zijlstra , Richard Weinberger , Russell King , Stafford Horne , Thomas Bogendoerfer , Thomas Gleixner , Vasily Gorbik , Vineet Gupta , Will Deacon , linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, x86@kernel.org Subject: Re: [PATCH 10/13] arch, mm: set high_memory in free_area_init() Message-ID: References: <20250306185124.3147510-1-rppt@kernel.org> <20250306185124.3147510-11-rppt@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspam-User: X-Rspamd-Queue-Id: 3B557140007 X-Rspamd-Server: rspam05 X-Stat-Signature: 4oawbhh9i9kxd9zrr8pwbw198ymhr6mn X-HE-Tag: 1741727241-924928 X-HE-Meta: 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 wJpChMal JZNgaPczz2oles+FNReeUmU6agV09Q0EUroAk2lxzyGoc4Z40Qg/Ip3MvaE00arJ2yOOyQhDCiNGhMl/0wzJz8XRfxthDiwVqgJ4cCdQECCAmhWhqoxM/PscG2DXjxsTIw359oja/w1rU2azLkDPkrb37dWgpfCHeqpLDuoF8KM/jx24+pgKtjdVNJnwCFMl32DoNNXxcB86TE7EQERXYa/GM/IjJzXkMDXltvsQyukxWfSsIzjcByNa8xTqi/yZXBdI12Xzen3TeAAFEdPui7En4S1V7Wsv2MAByAlrjbwd5rkDdU7fRqxJrcqIBMy/Diz8EjUuNw0oJQbE= 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: List-Subscribe: List-Unsubscribe: Hi Mark, On Tue, Mar 11, 2025 at 05:51:06PM +0000, Mark Brown wrote: > On Thu, Mar 06, 2025 at 08:51:20PM +0200, Mike Rapoport wrote: > > From: "Mike Rapoport (Microsoft)" > > > > high_memory defines upper bound on the directly mapped memory. > > This bound is defined by the beginning of ZONE_HIGHMEM when a system has > > high memory and by the end of memory otherwise. > > > > All this is known to generic memory management initialization code that > > can set high_memory while initializing core mm structures. > > > > Remove per-architecture calculation of high_memory and add a generic > > version to free_area_init(). > > This patch appears to be causing breakage on a number of 32 bit arm > platforms, including qemu's virt-2.11,gic-version=3. Affected platforms > die on boot with no output, a bisect with qemu points at this commit and > those for physical platforms appear to be converging on the same place. Can you share how this can be reproduced with qemu? -- Sincerely yours, Mike.