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=-3.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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 5B139C433E0 for ; Mon, 22 Feb 2021 17:33:03 +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 04B5A64E31 for ; Mon, 22 Feb 2021 17:33:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 04B5A64E31 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:52720 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lEF4v-00050t-Rh for qemu-devel@archiver.kernel.org; Mon, 22 Feb 2021 12:33:01 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:47006) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lEExb-0006bQ-32 for qemu-devel@nongnu.org; Mon, 22 Feb 2021 12:25:29 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:59794) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1lEExY-0006sd-2R for qemu-devel@nongnu.org; Mon, 22 Feb 2021 12:25:26 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1614014719; 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: in-reply-to:in-reply-to:references:references; bh=QFadlNG8jsMGTUuJQ3Aq4UzlqU7LNUy62TBUTgM/vQw=; b=LK6TuNDieWov6YxVdo+7qJP7qdPKlQkVfwprL5tPWkvOM8GuHl7q7+eQLcLDdcIUSKXCyP jOOiIA6qNR1I6WkuohYcucf/MVX7+xYP0TfBvnjAkVLKfBXfCdg1sofkrz9+CGZwnjkLGu VI/by3AbH1ymhKjM4j6FtCiz7z9c1hw= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-533-9aUjDhJJPkOtDKfJSa20cA-1; Mon, 22 Feb 2021 12:25:14 -0500 X-MC-Unique: 9aUjDhJJPkOtDKfJSa20cA-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id CE876107ACC7; Mon, 22 Feb 2021 17:25:12 +0000 (UTC) Received: from localhost (ovpn-112-255.ams2.redhat.com [10.36.112.255]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9F4C419C78; Mon, 22 Feb 2021 17:25:08 +0000 (UTC) Date: Mon, 22 Feb 2021 17:25:07 +0000 From: Stefan Hajnoczi To: Jiahui Cen Subject: Re: [PATCH v5 0/9] block: Add retry for werror=/rerror= mechanism Message-ID: References: <20210205101315.13042-1-cenjiahui@huawei.com> MIME-Version: 1.0 In-Reply-To: <20210205101315.13042-1-cenjiahui@huawei.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=stefanha@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="II/Xdo/R2EZH8Khi" Content-Disposition: inline Received-SPF: pass client-ip=216.205.24.124; envelope-from=stefanha@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action 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: , Cc: Kevin Wolf , zhang.zhanghailiang@huawei.com, qemu-block@nongnu.org, "Michael S. Tsirkin" , Markus Armbruster , qemu-devel@nongnu.org, fangying1@huawei.com, Max Reitz , John Snow Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" --II/Xdo/R2EZH8Khi Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Fri, Feb 05, 2021 at 06:13:06PM +0800, Jiahui Cen wrote: > This patch series propose to extend the werror=/rerror= mechanism to add > a 'retry' feature. It can automatically retry failed I/O requests on error > without sending error back to guest, and guest can get back running smoothly > when I/O is recovred. I posted a few questions but overall this looks promising. Thanks! 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