From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pl0-f70.google.com (mail-pl0-f70.google.com [209.85.160.70]) by kanga.kvack.org (Postfix) with ESMTP id 8ED326B0008 for ; Thu, 12 Jul 2018 00:36:15 -0400 (EDT) Received: by mail-pl0-f70.google.com with SMTP id m2-v6so16416889plt.14 for ; Wed, 11 Jul 2018 21:36:15 -0700 (PDT) Received: from ozlabs.org (ozlabs.org. [2401:3900:2:1::2]) by mx.google.com with ESMTPS id v129-v6si13237198pfv.278.2018.07.11.21.36.14 for (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 11 Jul 2018 21:36:14 -0700 (PDT) From: Michael Ellerman Subject: Re: Boot failures with "mm/sparse: Remove CONFIG_SPARSEMEM_ALLOC_MEM_MAP_TOGETHER" on powerpc (was Re: mmotm 2018-07-10-16-50 uploaded) In-Reply-To: <20180711133737.GA29573@techadventures.net> References: <20180710235044.vjlRV%akpm@linux-foundation.org> <87lgai9bt5.fsf@concordia.ellerman.id.au> <20180711133737.GA29573@techadventures.net> Date: Thu, 12 Jul 2018 14:36:10 +1000 Message-ID: <87h8l58405.fsf@concordia.ellerman.id.au> MIME-Version: 1.0 Content-Type: text/plain Sender: owner-linux-mm@kvack.org List-ID: To: Oscar Salvador Cc: akpm@linux-foundation.org, broonie@kernel.org, mhocko@suse.cz, sfr@canb.auug.org.au, linux-next@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, mm-commits@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, bhe@redhat.com, pasha.tatashin@oracle.com, "Aneesh Kumar K.V" , Anshuman Khandual Oscar Salvador writes: > On Wed, Jul 11, 2018 at 10:49:58PM +1000, Michael Ellerman wrote: >> akpm@linux-foundation.org writes: >> > The mm-of-the-moment snapshot 2018-07-10-16-50 has been uploaded to >> > >> > http://www.ozlabs.org/~akpm/mmotm/ >> ... >> >> > * mm-sparse-add-a-static-variable-nr_present_sections.patch >> > * mm-sparsemem-defer-the-ms-section_mem_map-clearing.patch >> > * mm-sparsemem-defer-the-ms-section_mem_map-clearing-fix.patch >> > * mm-sparse-add-a-new-parameter-data_unit_size-for-alloc_usemap_and_memmap.patch >> > * mm-sparse-optimize-memmap-allocation-during-sparse_init.patch >> > * mm-sparse-optimize-memmap-allocation-during-sparse_init-checkpatch-fixes.patch >> >> > * mm-sparse-remove-config_sparsemem_alloc_mem_map_together.patch >> >> This seems to be breaking my powerpc pseries qemu boots. >> >> The boot log with some extra debug shows eg: >> >> $ make pseries_le_defconfig > > Could you please share the config? > I was not able to find such config in the kernel tree. It's a generated config, see: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/powerpc/Makefile?commit=021c91791a5e7e85c567452f1be3e4c2c6cb6063#n315 It's based on pseries_defconfig, which is an actual file in the tree, but with the endian flipped. You can see the generated result from a recent build here: http://kisskb.ellerman.id.au/kisskb/buildresult/13428803/config/ cheers