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 X-Spam-Level: X-Spam-Status: No, score=-3.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_NEOMUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E6543C04EB8 for ; Tue, 4 Dec 2018 06:54:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 920A52146D for ; Tue, 4 Dec 2018 06:54:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="DLern7E8" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 920A52146D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726035AbeLDGy6 (ORCPT ); Tue, 4 Dec 2018 01:54:58 -0500 Received: from mail-ed1-f67.google.com ([209.85.208.67]:37965 "EHLO mail-ed1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725988AbeLDGy5 (ORCPT ); Tue, 4 Dec 2018 01:54:57 -0500 Received: by mail-ed1-f67.google.com with SMTP id h50so12966880ede.5 for ; Mon, 03 Dec 2018 22:54:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:reply-to:references:mime-version :content-disposition:in-reply-to:user-agent; bh=LCVw5D5JKQwcqynqXV6M4mR/vwbFVP76FkiLwGbnmyk=; b=DLern7E82sXQQ+3tY8VlFT+NyxT+q1U3KNhWKSskHXkqlnjB1eFBWJf06c2B4sxYzL 2NkDDBAA8jWUPZor6jqsiQN4kDtPY+G4tHhh/j9dqSvz5E87Rq5WWHZ9lkhkAcUAoh9Y dqXiR6skDOuX8LXiQvc+ZjKmxfdUU660htastXuovwdVkgPa71QT0WuR3AN4FjQhwhmB 1/v8EXeFnSESRgaZaMTc5q5LyHFsL7R105FtgZ/pMLcJjcKeO0PHjwWTBGfbkcsPiBFb VMCM1cq/DpwRtpy72bfe8qwnlDrWMBeSzJNKfmzONx4hWfOk3kXfP6A2RSJvpDPiZyQY fgcw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:reply-to :references:mime-version:content-disposition:in-reply-to:user-agent; bh=LCVw5D5JKQwcqynqXV6M4mR/vwbFVP76FkiLwGbnmyk=; b=ol8tAkmNBrVw2LaLZ/dMKTOO5oqlOmrWptZv7EdFdQox7nwuqeTFzCbhiz/ackYWMu nBE39exoOgLWWzZvxmQ/fEosbXMDXnXPcTOiPehakF0RCzrQXcE5Kd8T0Fsn3TYOUYzI wsyiPDN5+NokvFhxcmLiMrnYMVVHP3SBBbbPZfhEoAIf5xKbku8dcUNm94HUVKQqBlce 9WguuwseUwJmPq3rMYbcIqSOlJwh/zSAYpIrKErXnB0zMOi4u7qX0xBDZ+7Iu+rZucty lO6N9UhUd+uTUuJusXRz95KTDlHQZ96zB/y9PcPwhRXXAXCLXcvhGUj5gZv3m2d6uw2V B4Tw== X-Gm-Message-State: AA+aEWadKGeaCs6mGcBAev8UZcFdXduTl9NEBvZUNN5C2n/MAnaF5CQu js8wCKQK2dQ4KRnsZvvXGq8= X-Google-Smtp-Source: AFSGD/UCjyTzod88DfphnUryNaMCijJ1rOPG2piwjYLGAmdItuP3MIREw+b7rrcMAxeHuiLz9VjXMg== X-Received: by 2002:a50:c089:: with SMTP id k9mr16226073edf.89.1543906495209; Mon, 03 Dec 2018 22:54:55 -0800 (PST) Received: from localhost ([185.92.221.13]) by smtp.gmail.com with ESMTPSA id l17sm4467216edc.56.2018.12.03.22.54.54 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 03 Dec 2018 22:54:54 -0800 (PST) Date: Tue, 4 Dec 2018 06:54:53 +0000 From: Wei Yang 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 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> User-Agent: NeoMutt/20170113 (1.7.2) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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