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=-2.2 required=3.0 tests=BAYES_00,DATE_IN_PAST_24_48, 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 4B0C4C433F5 for ; Fri, 3 Sep 2021 13:22:59 +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 DE90160FC0 for ; Fri, 3 Sep 2021 13:22:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org DE90160FC0 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:36128 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mM99m-00007R-2Q for qemu-devel@archiver.kernel.org; Fri, 03 Sep 2021 09:22:58 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:47464) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mM8vz-0007Fm-OP for qemu-devel@nongnu.org; Fri, 03 Sep 2021 09:08:43 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:26681) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mM8vs-0001Ml-KP for qemu-devel@nongnu.org; Fri, 03 Sep 2021 09:08:43 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1630674515; 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=9jxDKsgw4J37S4Z3VtjooDrhpCYt4PvE3zOgtesQOTY=; b=c3+i4hoYQvA+MKaNGRcIO0NG1TRUDBkyyWmiIhN6mSzWWdfMuO6oY/zAMDaDmHI0js2UeF alcuCJ8zzXq3qwAncPDTw8sCO65A84vVOFVztKNoW0+64PrOw/CkoUjQfziKE6LWC3RBt2 Y000+2UJrs/d0SQHD4tgBEU7KTOvME0= 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-532-LPicsEQ2MY-PnMQyj9Ls4g-1; Fri, 03 Sep 2021 09:08:32 -0400 X-MC-Unique: LPicsEQ2MY-PnMQyj9Ls4g-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 5A9058015C7; Fri, 3 Sep 2021 13:08:31 +0000 (UTC) Received: from blackfin.pond.sub.org (ovpn-112-13.ams2.redhat.com [10.36.112.13]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 2C30860BF1; Fri, 3 Sep 2021 13:08:31 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 3B7C01132997; Thu, 2 Sep 2021 14:05:09 +0200 (CEST) From: Markus Armbruster To: Stefan Reiter Subject: Re: [PATCH] monitor/qmp: fix race with clients disconnecting early References: <20210823101115.2015354-1-s.reiter@proxmox.com> <87r1eh4j0f.fsf@dusky.pond.sub.org> <87r1eguxgi.fsf@dusky.pond.sub.org> <91f2fb28-fd4d-f7ad-13d1-61c7ba16ae3c@proxmox.com> <87eea9wrcf.fsf@dusky.pond.sub.org> Date: Thu, 02 Sep 2021 14:05:09 +0200 In-Reply-To: <87eea9wrcf.fsf@dusky.pond.sub.org> (Markus Armbruster's message of "Tue, 31 Aug 2021 17:45:20 +0200") Message-ID: <875yvjb2tm.fsf@dusky.pond.sub.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=armbru@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain Received-SPF: pass client-ip=170.10.133.124; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DATE_IN_PAST_24_48=1.34, DKIMWL_WL_HIGH=-0.392, 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_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham 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 , Wolfgang Bumiller , Michael Roth , "Dr. David Alan Gilbert" , qemu-devel@nongnu.org, Paolo Bonzini , Thomas Lamprecht Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Markus Armbruster writes: [...] > The point of OOB commands is "exec-oob executes right away no matter > what". To make that possible OOB-capable commands are severely > restricted in what they can do, and the client needs to limit the number > of commands in flight. > > "Right away" should be possible even when the client has to connect > first. I'm not sure that's actually the case now. It's not. I consider this a bug. [...]