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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,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 22EB3C35DEA for ; Tue, 25 Feb 2020 01:14:16 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id DF397218AC for ; Tue, 25 Feb 2020 01:14:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="knWfkBf5" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DF397218AC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:47054 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j6One-00078z-Vz for qemu-devel@archiver.kernel.org; Mon, 24 Feb 2020 20:14:15 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:37513) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j6DVw-0000qj-Vn for qemu-devel@nongnu.org; Mon, 24 Feb 2020 08:11:14 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1j6DVw-0001Vs-5k for qemu-devel@nongnu.org; Mon, 24 Feb 2020 08:11:12 -0500 Received: from mail-il1-x12b.google.com ([2607:f8b0:4864:20::12b]:40963) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1j6DVu-0001V1-3U; Mon, 24 Feb 2020 08:11:10 -0500 Received: by mail-il1-x12b.google.com with SMTP id f10so7636373ils.8; Mon, 24 Feb 2020 05:11:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=xX58vDsOZ+wnHLXJge/ZyfPkNblZU0cLBO0NNGLhjiY=; b=knWfkBf55+2BUezscV0RObRaWDwuBoWuIxSAxiZZBkpGX+79EjbSbvPVv+VV5jUD4U KfWNlY0KprSCLjQliunv4FAFNxj+5f9swzf6Bx0gxPbpPUpb8Va99t3wAJjW2nYMFMyq sqdRKMrY+rGMdd+h2xeOJTH7LQz9uAMwuat1Yz1KeIsCDKboFtgLOsJBTNtmgnq/TRbm wxuPTTJVwNWnPHh/fMp2CjJzfruqeK/BnfOCIclcS6hcscXrW89P+MNJ0RgGwA29q8wp LqK9A+dp4hY6ORYD8NW3KDX9K4wA8vPpJncULOK2eWnvjN8X5y1tRkfFhTh2DUXsXPld 6ajw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=xX58vDsOZ+wnHLXJge/ZyfPkNblZU0cLBO0NNGLhjiY=; b=fi5AP51AjNOgIATsuP/TWVWzG4aX30UZSBSuXU/w2hTY6gW2Ma8fWOWLGD/9qlPcOz DHcc6Y9LeKqytM9N46rjQQOVkIuJFZHURCjI0ysLzgb6OwYPC8aIBluIZzciaKDEMdc1 LhwiF30sNE7TvqME7oP/BXX9tT52c1ds9J/+en2ILhRuU4uIIJl5zapHeFP3Xwy/HvyN HA9FwI4UXhVjix9cq4ULOoWXXLQL/Mujtt2zMQhlwdwQO/+2WSErbTJ6Vs9Wuz03NsNR 0Oj0KkJKJ9RLulbDQ+DOs30WedJKy2rX2UAyQkcf8VpkBIdP4rNhP72kGZCZWUI/W6oZ mDiA== X-Gm-Message-State: APjAAAVJ2Y9t2IS24tn7ZTUz83O5KZmq2A9knMkrGtqsWaKgDh4IOZPC z4LvbDdbbqG5ERsOO7+eU4tK+f8f8isrWB3BAYRR1DlZ X-Google-Smtp-Source: APXvYqzdqQAzMXNXJ4dO80EdJr99Tp4h5c0j8n2IcoPOF/lBp2J8b/4ll712iUdxsPX+V2b+cYzH1ZyWRCb4v339J7M= X-Received: by 2002:a92:8311:: with SMTP id f17mr60707362ild.82.1582549868614; Mon, 24 Feb 2020 05:11:08 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Stefan Ring Date: Mon, 24 Feb 2020 14:10:57 +0100 Message-ID: Subject: Re: Strange data corruption issue with gluster (libgfapi) and ZFS To: qemu-block@nongnu.org, qemu-devel@nongnu.org, integration@gluster.org Content-Type: text/plain; charset="UTF-8" X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::12b X-Mailman-Approved-At: Mon, 24 Feb 2020 20:12:27 -0500 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Mon, Feb 24, 2020 at 1:35 PM Stefan Ring wrote: > > [...]. As already stated in > the original post, the problem only occurs with multiple parallel > write requests happening. Actually I did not state that. Anyway, the corruption does not happen when I restrict the ZFS io scheduler to only 1 request at a time (zfs_vdev_max_active), therefore I assume that this is somehow related to the ordering of asynchronously scheduled writes.