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 43E9FC28B2E for ; Tue, 11 Mar 2025 21:45:25 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 4F52E280002; Tue, 11 Mar 2025 17:45:22 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 4A207280001; Tue, 11 Mar 2025 17:45:22 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3446A280002; Tue, 11 Mar 2025 17:45:22 -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 18DED280001 for ; Tue, 11 Mar 2025 17:45:22 -0400 (EDT) Received: from smtpin17.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay03.hostedemail.com (Postfix) with ESMTP id 209D3A8136 for ; Tue, 11 Mar 2025 21:45:24 +0000 (UTC) X-FDA: 83210601768.17.0A35715 Received: from pandora.armlinux.org.uk (pandora.armlinux.org.uk [78.32.30.218]) by imf09.hostedemail.com (Postfix) with ESMTP id 15F20140008 for ; Tue, 11 Mar 2025 21:45:21 +0000 (UTC) Authentication-Results: imf09.hostedemail.com; dkim=pass header.d=armlinux.org.uk header.s=pandora-2019 header.b=YKUFZma5; spf=none (imf09.hostedemail.com: domain of "linux+linux-mm=kvack.org@armlinux.org.uk" has no SPF policy when checking 78.32.30.218) smtp.mailfrom="linux+linux-mm=kvack.org@armlinux.org.uk"; dmarc=pass (policy=none) header.from=armlinux.org.uk ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1741729522; h=from:from:sender: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: in-reply-to:in-reply-to:references:references:dkim-signature; bh=ovx5QRchar4AgKbZmcUidnU1Sgp6hJ8J2mWjaBreQxQ=; b=SV+S7XAZ9VFwlxgvL9cY9sZx3CsNacTjm6Q4dJbuzggMyq4klEqZx+lsXTQUv3FzKMzVmd Goj2Twk//CqQAoOxW/OKQCmXuSaL1uzbxAUdt02HB7+1SmRhIL8JWBLeiwqNhKYiHyi31G k7VVONjZ+jMUvRvtf91bpBPV+HwnrtQ= ARC-Authentication-Results: i=1; imf09.hostedemail.com; dkim=pass header.d=armlinux.org.uk header.s=pandora-2019 header.b=YKUFZma5; spf=none (imf09.hostedemail.com: domain of "linux+linux-mm=kvack.org@armlinux.org.uk" has no SPF policy when checking 78.32.30.218) smtp.mailfrom="linux+linux-mm=kvack.org@armlinux.org.uk"; dmarc=pass (policy=none) header.from=armlinux.org.uk ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1741729522; a=rsa-sha256; cv=none; b=jxOxFcyvMMZiXxQcj54q6EjBfcK8YkS+6TtvSUlKV83bsIUlng3Kq1b+TJdJntu5fgvwjK AtKnlAuLvhn7A0OyqIefFcBlraBOD1wYqOwHsektYQQLJEo38ZOu2ITJoGHH+yH8ihQyBv ISmU2r9mASkYijaxxOX+FlTUS4M1/uM= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Sender: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-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=ovx5QRchar4AgKbZmcUidnU1Sgp6hJ8J2mWjaBreQxQ=; b=YKUFZma5ooYbfPAxs2e8WpnWGr ReBixcYtqsm8p9qp/V9IOpcOD3rDtkAOWoTp+rxRWoG5hAQb7JcEgBz9PjnmIx2B1UkY86AGEE8dA vBMJ+HrwLU/e/BTg1Q0w6r/jVzrvxp9U4JLfTMsS9Fk7DOds9lm+Bzlif2BtGz+2KKZrH5q9XSKSr 0IcAmbvHcysiqhBGxEoiO3ydP+pavx2GPUBMUDLT5kb3QIVZkaXgEpT+S9xdlHJZXw/PiGccrR7QP ga+uclZiwdICHah9QStnWzKC8lQo7WOlF+qgO+zqhsf6THT7hbqGpimkd2yAJxmeRlK+JidELtIKv Wz1UWjfQ==; Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:57706) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1ts7OX-0004di-0b; Tue, 11 Mar 2025 21:44:13 +0000 Received: from linux by shell.armlinux.org.uk with local (Exim 4.96) (envelope-from ) id 1ts7ON-0003qi-0R; Tue, 11 Mar 2025 21:44:03 +0000 Date: Tue, 11 Mar 2025 21:44:02 +0000 From: "Russell King (Oracle)" To: Mark Brown Cc: Mike Rapoport , 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 , 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> <5e40219b-f149-4e0f-aa10-c09fa183945e@sirena.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5e40219b-f149-4e0f-aa10-c09fa183945e@sirena.org.uk> X-Rspam-User: X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 15F20140008 X-Stat-Signature: tfwhwkoydapj3cj8c7x1ep98e3fww1a7 X-HE-Tag: 1741729521-983848 X-HE-Meta: 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 ae9TgZ9O 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 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: On Tue, Mar 11, 2025 at 09:33:29PM +0000, Mark Brown wrote: > On Tue, Mar 11, 2025 at 11:06:56PM +0200, Mike Rapoport wrote: > > On Tue, Mar 11, 2025 at 05:51:06PM +0000, Mark Brown wrote: > > > > 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? > > https://lava.sirena.org.uk/scheduler/job/1184953 > > Turns out it's actually producing output on qemu: > > [ 0.000000] Booting Linux on physical CPU 0x0 > [ 0.000000] Linux version 6.14.0-rc6-next-20250311 (tuxmake@tuxmake) (arm-linux-gnueabihf-gcc (Debian 13.3.0-5) 13.3.0, GNU ld (GNU Binutils for Debian) 2.43.1) #1 SMP @1741691801 > [ 0.000000] CPU: ARMv7 Processor [414fc0f0] revision 0 (ARMv7), cr=10c5387d > [ 0.000000] CPU: div instructions available: patching division code > [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache > [ 0.000000] OF: fdt: Machine model: linux,dummy-virt > [ 0.000000] random: crng init done > [ 0.000000] earlycon: pl11 at MMIO 0x09000000 (options '') > [ 0.000000] printk: legacy bootconsole [pl11] enabled > [ 0.000000] Memory policy: Data cache writealloc > [ 0.000000] efi: UEFI not found. > [ 0.000000] cma: Reserved 64 MiB at 0x00000000 > > - I'd only been sampling the logs for the physical platforms, none of > which had shown anything. > > (you dropped me from the CCs BTW!) That's because your emails contain a "Mail-Followup-To:" header. Please read: https://datatracker.ietf.org/doc/html/draft-ietf-drums-mail-followup-to-00.txt particularly 2.4. In effect, by including this header, you asked to be dropped. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!