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=-3.8 required=3.0 tests=BAYES_00, 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 47D24C4741F for ; Sat, 26 Sep 2020 17:07:21 +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 E18CD207C4 for ; Sat, 26 Sep 2020 17:07:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E18CD207C4 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bugs.launchpad.net Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:39780 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kMDfL-0000W2-To for qemu-devel@archiver.kernel.org; Sat, 26 Sep 2020 13:07:19 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:53478) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kMDdj-0007fF-PU for qemu-devel@nongnu.org; Sat, 26 Sep 2020 13:05:39 -0400 Received: from indium.canonical.com ([91.189.90.7]:44888) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kMDdh-0004FJ-3a for qemu-devel@nongnu.org; Sat, 26 Sep 2020 13:05:39 -0400 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.86_2 #2 (Debian)) id 1kMDdg-00013Q-2A for ; Sat, 26 Sep 2020 17:05:36 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id 0B16D2E80DB for ; Sat, 26 Sep 2020 17:05:36 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Sat, 26 Sep 2020 16:58:29 -0000 From: Thomas Huth <1719689@bugs.launchpad.net> To: qemu-devel@nongnu.org X-Launchpad-Notification-Type: bug X-Launchpad-Bug: product=qemu; status=New; importance=Wishlist; assignee=None; X-Launchpad-Bug-Tags: feature-request X-Launchpad-Bug-Information-Type: Public X-Launchpad-Bug-Private: no X-Launchpad-Bug-Security-Vulnerability: no X-Launchpad-Bug-Commenters: erichspaker X-Launchpad-Bug-Reporter: Erich Spaker (erichspaker) X-Launchpad-Bug-Modifier: Thomas Huth (th-huth) References: <150644549574.30872.12487281678930398558.malonedeb@wampee.canonical.com> Message-Id: <160113951061.9359.11266041422409885573.launchpad@chaenomeles.canonical.com> Subject: [Bug 1719689] Re: [feature request] add flag to treat warnings as errors X-Launchpad-Message-Rationale: Subscriber (QEMU) @qemu-devel-ml X-Launchpad-Message-For: qemu-devel-ml Precedence: bulk X-Generated-By: Launchpad (canonical.com); Revision="a314d157ca9be8d00eae0214fc0d7dff1cd406e4"; Instance="production" X-Launchpad-Hash: 97ee71fc665f949a1344aabfbfc4cd5f695f6c79 Received-SPF: none client-ip=91.189.90.7; envelope-from=bounces@canonical.com; helo=indium.canonical.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/26 13:05:34 X-ACL-Warn: Detected OS = Linux 3.11 and newer [fuzzy] X-Spam_score_int: -65 X-Spam_score: -6.6 X-Spam_bar: ------ X-Spam_report: (-6.6 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Bug 1719689 <1719689@bugs.launchpad.net> Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" ** Changed in: qemu Importance: Undecided =3D> Wishlist -- = You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1719689 Title: [feature request] add flag to treat warnings as errors Status in QEMU: New Bug description: Since booting could potentially take a lot of time and warnings are likely to indicate that something is wrong, it would be useful to have a command line flag which would abort the boot if there are any warnings. An example might be network configuration. The following output most likely indicates that there is something the user has to fix before starting and being able to use the guest os. Warning: hub port hub0port0 has no peer Warning: vlan 0 with no nics Warning: netdev hub0port0 has no peer Warning: requested NIC (anonymous, model vitrio-net-device) was not creat= ed (not supported by this machine?) Ideally, there would be an option the user could pass which would cause qemu to print these warnings then exit, rather than boot the kernel. Alternatively, or additionally, a dry run option would be helpful for the same purpose: making sure qemu get to the booting the kernel stage with everything in working order so that you do not have to wait for the kernel to boot and then shut down while debugging things like networking (things which can be debugged (at least partially) without booting, or trying to boot, the guest os). 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