From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 705EB1FB1; Wed, 22 Mar 2023 07:42:20 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 98338C433D2; Wed, 22 Mar 2023 07:42:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1679470940; bh=fI8I7kUW9jl8JDKoUwnDcZT5y9SyGOf9EGeftjRodGU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=uU2sJ3HuM4EZ/d8q4LldNgAathUVoQ2FnXXL9nWNAVQ30N+HhnFGHqHQUW9PbccAs oJaz5Y1anXW59lKM0/AVzHD/twBCDS0zQgXiXdMjx7w5bRhGfklbSs1Zvwl2AHMdAp PXL2GvMqKlfuDSCcfd9Mw4Had/XPV9MUGimXG07hHi0Ry55msuX61kYvBa2L9VDHUK 9p8tVnGhFPl26xELhc0InHOqRIPLC6SGkrZOHXzkMU2CguCr+HX/XclX9K64nZ6tk7 6r+BtMAG+vcoJabPrraUPT8QUtuiRy/Z+I5AGlNPSFsDs+49W16hfq9qU1allRdtPV EG+YRQxwAfNzA== Date: Wed, 22 Mar 2023 09:42:07 +0200 From: Mike Rapoport To: Huacai Chen Cc: "Kirill A. Shutemov" , kernel test robot , WANG Xuerui , loongarch@lists.linux.dev, "Kirill A. Shutemov" , oe-kbuild-all@lists.linux.dev, Linux Memory Management List , Andrew Morton Subject: Re: [linux-next:master 3778/4413] include/linux/mmzone.h:1749:2: error: #error Allocator MAX_ORDER exceeds SECTION_SIZE Message-ID: References: <202303201615.Qfu18nWV-lkp@intel.com> <20230320155626.hirui3frcaunnajj@box.shutemov.name> Precedence: bulk X-Mailing-List: loongarch@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Tue, Mar 21, 2023 at 10:59:36AM +0800, Huacai Chen wrote: > Hi, all, > > On Mon, Mar 20, 2023 at 11:56 PM Kirill A. Shutemov > wrote: > > > > On Mon, Mar 20, 2023 at 04:06:33PM +0800, kernel test robot wrote: > > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > > > head: 73f2c2a7e1d2b31fdd5faa6dfa151c437a6c0a5a > > > commit: af8daebdbc0833b8095767ccef7ddce55e9fdf32 [3778/4413] mm, treewide: redefine MAX_ORDER sanely > > > config: loongarch-buildonly-randconfig-r003-20230320 (https://download.01.org/0day-ci/archive/20230320/202303201615.Qfu18nWV-lkp@intel.com/config) > > > compiler: loongarch64-linux-gcc (GCC) 12.1.0 > > > reproduce (this is a W=1 build): > > > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > > > chmod +x ~/bin/make.cross > > > # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=af8daebdbc0833b8095767ccef7ddce55e9fdf32 > > > git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git > > > git fetch --no-tags linux-next master > > > git checkout af8daebdbc0833b8095767ccef7ddce55e9fdf32 > > > # save the config file > > > mkdir build_dir && cp config build_dir/.config > > > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=loongarch olddefconfig > > > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=loongarch prepare > > > > > > If you fix the issue, kindly add following tag where applicable > > > | Reported-by: kernel test robot > > > | Link: https://lore.kernel.org/oe-kbuild-all/202303201615.Qfu18nWV-lkp@intel.com/ > > > > > > All errors (new ones prefixed by >>): > > > > > > In file included from include/linux/gfp.h:7, > > > from include/linux/mm.h:7, > > > from arch/loongarch/kernel/asm-offsets.c:9: > > > >> include/linux/mmzone.h:1749:2: error: #error Allocator MAX_ORDER exceeds SECTION_SIZE > > > 1749 | #error Allocator MAX_ORDER exceeds SECTION_SIZE > > > | ^~~~~ > > > > +Loongarch folks. > LoongArch defines SECTION_SIZE_BITS as 29, so I think the upper limit > of ARCH_FORCE_MAX_ORDER should not be 63, MIPS is similar. The ranges MIPS add LoongArch define for ARCH_FORCE_MAX_ORDER are insane. I'm going to drop them and leave ARCH_FORCE_MAX_ORDER an int with sane defaults. As for this splat, in the .config above ARCH_FORCE_MAX_ORDER=14 and PAGE_SIZE=64k, so we end up with MAX_ORDER + PAGE_SHIFT being 30, that's larger than SECTION_SIZE. AFAIK randconfig does not randomize integers, so it's unclear to me how ARCH_FORCE_MAX_ORDER got to 14. > Huacai > > > > The same situation as with mips: > > > > https://lore.kernel.org/all/20230315152636.smn34f3c6a5jzpn3@box > > > > -- > > Kiryl Shutsemau / Kirill A. Shutemov > -- Sincerely yours, Mike.