From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id 6C4B1138247 for ; Mon, 4 Nov 2013 23:29:18 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 900BBE0A8C; Mon, 4 Nov 2013 23:29:11 +0000 (UTC) Received: from mail-wg0-f51.google.com (mail-wg0-f51.google.com [74.125.82.51]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id 98BFAE09FE for ; Mon, 4 Nov 2013 23:29:10 +0000 (UTC) Received: by mail-wg0-f51.google.com with SMTP id l18so2807060wgh.30 for ; Mon, 04 Nov 2013 15:29:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:content-type:content-transfer-encoding; bh=xNWlm5wd1MLiQ1J53idcgOqfF6I42FrZnc878YYIqvI=; b=JkjUCMJACEQouQjSr0fsWYlVjU7ZyN2pEuiVGQf69RnpytJARY0RLQm2sw85T0lva0 kcmrzuyk5EYe7k3X//3581vGGpajmUpZ0u3Nvzw+o/LeG0HSwrs5GlIJEhC7GohtrhF6 zX1ZPUKQOANmByoZxRL3H3+EklqkFC6qnVWaWt46v4Ttkx5ItlC42jChmQwMlClVWUIJ +Me4kpCtmSPtjColS5zeF2hVMKE7XabIiz7WD82ASfv2OTuMqv2bhAEQu0RrYJ+PCV3W 5hoYXHcPXTU/1a9ol0FcbVjcHsAiuBUtNIR+9MzbCNSGmwFhACRf2xKA41MYF9kOlCKz 4g6Q== X-Received: by 10.180.208.45 with SMTP id mb13mr14246807wic.27.1383607748994; Mon, 04 Nov 2013 15:29:08 -0800 (PST) Received: from [172.20.0.40] (196-210-126-109.dynamic.isadsl.co.za. [196.210.126.109]) by mx.google.com with ESMTPSA id td6sm8559653wic.10.2013.11.04.15.29.08 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 04 Nov 2013 15:29:08 -0800 (PST) Message-ID: <52782DB3.3060309@gmail.com> Date: Tue, 05 Nov 2013 01:28:51 +0200 From: Alan McKinnon User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.0 Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-dev@lists.gentoo.org Reply-to: gentoo-dev@lists.gentoo.org MIME-Version: 1.0 To: gentoo-dev@lists.gentoo.org Subject: Re: [gentoo-dev] Re: Official way to do rolling update (Was: Re: Releng breakage with respect to move from dev-python/python-exec to dev-lang/python-exec) References: <20131104051518.51efd36c@gentoo.org> <52775FD3.7000102@sporkbox.us> <20131104112632.0c7ff3de@gentoo.org> <52778DDC.7080407@gmail.com> <20131104132834.27fe7dfb@TOMWIJ-GENTOO> In-Reply-To: <20131104132834.27fe7dfb@TOMWIJ-GENTOO> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Archives-Salt: 07e5d519-72c4-4ca6-ac14-ce2b432d2cf9 X-Archives-Hash: 0312aab15a24c7c7917b8ffa26e1f1a7 On 04/11/2013 14:28, Tom Wijsman wrote: >> The only way to get a more stable system is to do a emerge -e world >> > and update that way. At least that has been my experience so far. > I have never needed this; I wonder whether there exists an example case > for this, I only see this used when someone changes compiler / flags > and wants to ensure the whole system turns into rice. * > I've used this once or twice over the years to take care of inexplicable instability, the last time being right in the middle of kmail2/akonadi upheaval. I think it was in the KDE4.4 days. I strongly suspect the actual cause was inconsistencies around plug-in modules - the only thing I know of that portage and tools like revdep-rebuild can't really detect. I must stress that it's an exceptionally blunt hammer of a tool and not to be used lightly. It's really the very very last resort, only suitable when the cost of my troubleshooting time is more than the cost of cpu cycles over a weekend. -- Alan McKinnon alan.mckinnon@gmail.com