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=-7.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 7B5CDC433DF for ; Fri, 21 Aug 2020 14:51:07 +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 44C412075E for ; Fri, 21 Aug 2020 14:51:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="Py3I2zqi" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 44C412075E 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]:39010 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k98Nm-00048I-JX for qemu-devel@archiver.kernel.org; Fri, 21 Aug 2020 10:51:06 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:36594) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k98N9-0003WU-B5 for qemu-devel@nongnu.org; Fri, 21 Aug 2020 10:50:27 -0400 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:22542 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1k98N6-0001Ua-Ma for qemu-devel@nongnu.org; Fri, 21 Aug 2020 10:50:26 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1598021423; 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=thk4uK4jeeeBOJn0GtXI9RZP5xA2uiitnMpvbxQVqBM=; b=Py3I2zqiXM/s56qnpZqlrLUw5zXLEJjO5gW+DvAIF7/WsI16YZyLlcL+hCUU9jdslMf2CM 3PuB4u62v8fQAr1r2i2UHspGdfFEzFQZKfMUGUajwJ8BcRmhIe3RqEBrcRI9rUF5Q1MTse 32SPl1amRVmRIXzgMr7wvBYuN/FDKI4= 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-330-fkCLQHD-M9aYXX_Rha6frg-1; Fri, 21 Aug 2020 10:50:18 -0400 X-MC-Unique: fkCLQHD-M9aYXX_Rha6frg-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 8C13218A2242; Fri, 21 Aug 2020 14:50:17 +0000 (UTC) Received: from lacos-laptop-7.usersys.redhat.com (ovpn-113-164.ams2.redhat.com [10.36.113.164]) by smtp.corp.redhat.com (Postfix) with ESMTP id CADAB10013C2; Fri, 21 Aug 2020 14:50:16 +0000 (UTC) Subject: Re: ANNOUNCE: build system conversion to Meson has landed To: Peter Maydell , QEMU Developers References: From: Laszlo Ersek Message-ID: Date: Fri, 21 Aug 2020 16:50:15 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=lersek@redhat.com X-Mimecast-Spam-Score: 0.001 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=205.139.110.120; envelope-from=lersek@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/20 23:41:39 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -40 X-Spam_score: -4.1 X-Spam_bar: ---- X-Spam_report: (-4.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-1, 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: Paolo Bonzini Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 08/21/20 15:49, Peter Maydell wrote: > https://wiki.qemu.org/Features/Meson/Next has a summary of changes > and is worth a quick scan through. I'd like to propose a wording clarification: """ For bisection: incremental builds work fine in the forward direction. They probably don't work at all backwards. This is mitigated by the fact that bisection usually starts at a release, and the patches should be applied on top of the 5.1.0 tag. """ namely: - s/forward direction/forward direction, across the conversion/ - s/backwards/backwards, across the conversion/ Because the way the paragraph is worded now, it suggests that *any* individual bisection step that moves backwards in the git history will not build. That would be of course catastrophic. We should clarify that the symptom is limited to steps that straddle the conversion commit range. If the suggested replacements are OK, I can make the edit myself (if that's preferred). (Not trying to be a busybody -- exactly because I contribute little to QEMU, bisection is a comparatively large part of what I *do* do with QEMU.) Thanks! Laszlo