Received: by 2002:a05:6359:c8b:b0:c7:702f:21d4 with SMTP id go11csp2381832rwb; Thu, 29 Sep 2022 09:28:33 -0700 (PDT) X-Google-Smtp-Source: AMsMyM6ZtXetEqPiuwvkn+s1KDA8E/UN6Go0jeATo/mYDmkmQN2cqhVIzxurpP0LbqJ71QHU4LqB X-Received: by 2002:a17:907:3e25:b0:783:29e1:c1ce with SMTP id hp37-20020a1709073e2500b0078329e1c1cemr3280742ejc.303.1664468913322; Thu, 29 Sep 2022 09:28:33 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1664468913; cv=none; d=google.com; s=arc-20160816; b=fogKY/gZkRftf/To7BUN8vdttcYUvP8KDa7ETbILTL5fxJJt/WxUA2mxbzazSEtLsB WaKTB635b9fzTKXKyeNM43Ve58pxzCJkmO4A1of9cDfz92JEvZ/zSoklLxL2W97OZgWj JYvvbWKg3phiEsiAAg2HKyqk7uUNv8tPGs93HiegL6U3xJQHid+0llf0tlin7mLhMSiO xaoqnBTpj3n/qQor3ZgPwHLoLY+bhoBrTI3ps9k76MDX/YZGvBmo67xmtSxWiZnxxdwa LLZIiR87G59OeKq/3QDezBd6ZnGp+pxRKWDx+2iByL3fSpFF4BaOpSZAQs77BDF2duDp vDlQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :user-agent:references:in-reply-to:date:cc:to:from:subject :message-id:dkim-signature; bh=SK8jnl25GfBurW867juBk8Hvi+Y8sy3LVuiGjVel2EA=; b=n1YHqqYsgZnMbzTy9lVXGe4CQOzLCrqrGSG7+8hi7G0e7/pHv4X+hXyHXc7oSIkkhc Fm8AEkoUYhLbf3u8oj0es8JnM6m05TYMtzdD/TaEp5cqF2sZFyjWST7FDwkaeOIEV84s KpD2WLgZmC8dBESVjUI6ILIsHC2cHWVpeAD/uZ/9jYdl3RRYMd1iQPDPAa/sh+FeqZ/a rTLa9QHPTqQBQcVo8UyrwmZCQbUfg7ZSFo43q5MUMN+LL+eh2wFyJEbrZnq8fDifaA0w ALm5/CguP9/ZszQcbWqMqwo1agU9nU1U0iPWT6+IXh3LmR3rIF0wl4M0Pg2Yvi6YhkzU DvDA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=JfY+UIzS; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id wu2-20020a170906eec200b007824b85978asi9165257ejb.81.2022.09.29.09.28.07; Thu, 29 Sep 2022 09:28:33 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=JfY+UIzS; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236079AbiI2QQw (ORCPT + 99 others); Thu, 29 Sep 2022 12:16:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54042 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234737AbiI2QQh (ORCPT ); Thu, 29 Sep 2022 12:16:37 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D116BFAC9 for ; Thu, 29 Sep 2022 09:16:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1664468195; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=SK8jnl25GfBurW867juBk8Hvi+Y8sy3LVuiGjVel2EA=; b=JfY+UIzSZrkUD4yb993CbyErlacwwcF/pLjE6aHASlVRvQh4ctq0ce6DBRUoIsEI8DnUuH xFPC/m1ebwHcDalpsJpsf+zZAAi4ouVA3fSK5xI9dgka8GRcq4ikDOB5Q1aSZfv3ODTL77 izB83lwj5U/zNJFjc/QgAy7gdMom6G0= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-590-tWxvPbKKOv-UAw5fd6zNXg-1; Thu, 29 Sep 2022 12:16:32 -0400 X-MC-Unique: tWxvPbKKOv-UAw5fd6zNXg-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.rdu2.redhat.com [10.11.54.7]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id D5441868A2E; Thu, 29 Sep 2022 16:16:31 +0000 (UTC) Received: from starship (unknown [10.40.193.233]) by smtp.corp.redhat.com (Postfix) with ESMTP id 33A50140EBF4; Thu, 29 Sep 2022 16:16:30 +0000 (UTC) Message-ID: Subject: Re: Commit 'iomap: add support for dma aligned direct-io' causes qemu/KVM boot failures From: Maxim Levitsky To: Keith Busch Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, Christoph Hellwig , qemu-devel@nongnu.org, kvm@vger.kernel.org Date: Thu, 29 Sep 2022 19:16:29 +0300 In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.36.5 (3.36.5-2.fc32) MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 3.1 on 10.11.54.7 X-Spam-Status: No, score=-2.2 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2022-09-29 at 09:48 -0600, Keith Busch wrote: > I am aware, and I've submitted the fix to qemu here: > > https://lists.nongnu.org/archive/html/qemu-block/2022-09/msg00398.html > Thanks for quick response! Question is though, isn't this an kernel ABI breakage? (I myself don't care, I would be happy to patch my qemu), but I afraid that this will break *lots* of users that only updated the kernel and not the qemu. What do you think? Best regards, Maxim Levitsky