From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ed1-f69.google.com (mail-ed1-f69.google.com [209.85.208.69]) by kanga.kvack.org (Postfix) with ESMTP id C447A6B6D5E for ; Tue, 4 Dec 2018 01:54:56 -0500 (EST) Received: by mail-ed1-f69.google.com with SMTP id s50so7687030edd.11 for ; Mon, 03 Dec 2018 22:54:56 -0800 (PST) Received: from mail-sor-f65.google.com (mail-sor-f65.google.com. [209.85.220.65]) by mx.google.com with SMTPS id b9sor8323459eda.20.2018.12.03.22.54.55 for (Google Transport Security); Mon, 03 Dec 2018 22:54:55 -0800 (PST) Date: Tue, 4 Dec 2018 06:54:53 +0000 From: Wei Yang Subject: Re: [PATCH] mm/alloc: fallback to first node if the wanted node offline Message-ID: <20181204065453.4rsyhtsk2aej4vim@master> Reply-To: Wei Yang References: <1543892757-4323-1-git-send-email-kernelfans@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1543892757-4323-1-git-send-email-kernelfans@gmail.com> Sender: owner-linux-mm@kvack.org List-ID: To: Pingfan Liu Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Andrew Morton , Michal Hocko , Vlastimil Babka , Mike Rapoport , Bjorn Helgaas , Jonathan Cameron On Tue, Dec 04, 2018 at 11:05:57AM +0800, Pingfan Liu wrote: >During my test on some AMD machine, with kexec -l nr_cpus=x option, the >kernel failed to bootup, because some node's data struct can not be allocated, >e.g, on x86, initialized by init_cpu_to_node()->init_memory_less_node(). But >device->numa_node info is used as preferred_nid param for could we fix the preferred_nid before passed to __alloc_pages_nodemask()? BTW, I don't catch the function call flow to this point. Would you mind giving me some hint? -- Wei Yang Help you, Help me