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=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=unavailable 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 6EC76C4360F for ; Tue, 19 Feb 2019 13:49:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 475872085A for ; Tue, 19 Feb 2019 13:49:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728180AbfBSNtb (ORCPT ); Tue, 19 Feb 2019 08:49:31 -0500 Received: from mx2.cyber.ee ([193.40.6.72]:38246 "EHLO mx2.cyber.ee" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726221AbfBSNtb (ORCPT ); Tue, 19 Feb 2019 08:49:31 -0500 Subject: Re: ext4 corruption on alpha with 4.20.0-09062-gd8372ba8ce28 To: Jan Kara Cc: "Theodore Y. Ts'o" , linux-alpha@vger.kernel.org, LKML , linux-block@vger.kernel.org, linux-mm@kvack.org References: <1c26eab4-3277-9066-5dce-6734ca9abb96@linux.ee> <076b8b72-fab0-ea98-f32f-f48949585f9d@linux.ee> <20190216174536.GC23000@mit.edu> <20190218120209.GC20919@quack2.suse.cz> <4e015688-8633-d1a0-308b-ba2a78600544@linux.ee> <20190219132026.GA28293@quack2.suse.cz> From: Meelis Roos Message-ID: <6cd92b22-742d-f6d5-5b6a-180884fbbf20@linux.ee> Date: Tue, 19 Feb 2019 15:49:27 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.5.1 MIME-Version: 1.0 In-Reply-To: <20190219132026.GA28293@quack2.suse.cz> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: et-EE Content-Transfer-Encoding: 7bit Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org > Thanks for information. Yeah, that makes somewhat more sense. Can you ever > see the failure if you disable CONFIG_TRANSPARENT_HUGEPAGE? HAVE_ARCH_TRANSPARENT_HUGEPAGE [=n] Seems there is no THP on alpha. > Because your > findings still seem to indicate that there' some problem with page > migration and Alpha (added MM list to CC). But my kernel config had memory compaction (that turned on page migration) and bounce buffers. I do not remember why I found them necessary but I will try without them. -- Meelis Roos