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=-1.0 required=3.0 tests=MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no 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 1B4C2C433DF for ; Wed, 8 Jul 2020 06:45:29 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id D8CE02078C for ; Wed, 8 Jul 2020 06:45:28 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D8CE02078C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 718F68D0018; Wed, 8 Jul 2020 02:45:28 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 6C8B08D000D; Wed, 8 Jul 2020 02:45:28 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 5B7A68D0018; Wed, 8 Jul 2020 02:45:28 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0147.hostedemail.com [216.40.44.147]) by kanga.kvack.org (Postfix) with ESMTP id 439C88D000D for ; Wed, 8 Jul 2020 02:45:28 -0400 (EDT) Received: from smtpin06.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id F241E82499A8 for ; Wed, 8 Jul 2020 06:45:27 +0000 (UTC) X-FDA: 77013972294.06.burn83_1c1421126ebb Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin06.hostedemail.com (Postfix) with ESMTP id C5C7E10049615 for ; Wed, 8 Jul 2020 06:45:27 +0000 (UTC) X-HE-Tag: burn83_1c1421126ebb X-Filterd-Recvd-Size: 3149 Received: from mail-wr1-f67.google.com (mail-wr1-f67.google.com [209.85.221.67]) by imf06.hostedemail.com (Postfix) with ESMTP for ; Wed, 8 Jul 2020 06:45:27 +0000 (UTC) Received: by mail-wr1-f67.google.com with SMTP id r12so47558795wrj.13 for ; Tue, 07 Jul 2020 23:45:27 -0700 (PDT) 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:references :mime-version:content-disposition:in-reply-to; bh=kTz766jrS9kLMaLLgdH0q1srs9gRA5HbwAQdKRecpe8=; b=fNUn7tkwqteQij3x81W5pRqaVf4Nf9yH/ShK3jd5cniwtVdIdkeTeuDh2UCjONeM9F HjLNHTToOU9InEd2CHOlYZsXpkAFhxPtYwQcs7NgRhmIZ7lIsRWADag8j7jX+1+XK7hF ubYLSrkA6O6VnUriGpXMVxKAj8xCFmAm8Y+Mm6YMmsumukR8D5j5fYxnPd5M1ad4J01c YaY9MyFJfUtr6ymSxjEf8UXR0OEfs8Z5b+3Lu5of4LptFKOnL7k2BYsxyLYrOH2butRE R9xGdURp6qNaQmZJjWsfbs4AVLzkV6lsi/dipdr4gGgf99YTN6uQmRSv8W+p2q8Km2x5 UCQQ== X-Gm-Message-State: AOAM533MrD+jKadZzULCguMJmUEJOh06+rZSxYIBEqgmjjeKAI4ZazVB xHsaE/4KclHGjqYLn0T+Il8= X-Google-Smtp-Source: ABdhPJy8zVhJlQAscGLs009kKGfNYnLK/DzOEwXA0PD9XYTGtNiXApHOU2S0+TIDsPJIvfKwiKeZNQ== X-Received: by 2002:a05:6000:1182:: with SMTP id g2mr53285426wrx.44.1594190726440; Tue, 07 Jul 2020 23:45:26 -0700 (PDT) Received: from localhost (ip-37-188-179-51.eurotel.cz. [37.188.179.51]) by smtp.gmail.com with ESMTPSA id 207sm5144885wme.13.2020.07.07.23.45.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Jul 2020 23:45:25 -0700 (PDT) Date: Wed, 8 Jul 2020 08:45:24 +0200 From: Michal Hocko To: Qian Cai Cc: js1304@gmail.com, Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org, kernel-team@lge.com, Vlastimil Babka , Christoph Hellwig , Roman Gushchin , Mike Kravetz , Naoya Horiguchi , Joonsoo Kim Subject: Re: [PATCH v3 7/8] mm/mempolicy: use a standard migration target allocation callback Message-ID: <20200708064524.GA7271@dhcp22.suse.cz> References: <1592892828-1934-1-git-send-email-iamjoonsoo.kim@lge.com> <1592892828-1934-8-git-send-email-iamjoonsoo.kim@lge.com> <20200708012044.GC992@lca.pw> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200708012044.GC992@lca.pw> X-Rspamd-Queue-Id: C5C7E10049615 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam01 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000003, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue 07-07-20 21:20:44, Qian Cai wrote: [...] > migrate_pages() starts failing like this apparently using the new > callback on NUMA systems, > > [ 6147.019063][T45242] LTP: starting move_pages12 > [ 6147.475680][T64921] BUG: unable to handle page fault for address: ffffffffffffffe0 Hmm, this looks like -EPIPE (-32) which is unexpected to say the least. Does the test pass without this patch applied? Also there has been v4 posted just yesterday. Does it suffer from the same problem? -- Michal Hocko SUSE Labs