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 22E2913877A for ; Fri, 25 Jul 2014 09:13:30 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id CE8C1E1933; Fri, 25 Jul 2014 09:13:20 +0000 (UTC) Received: from mail-wi0-f176.google.com (mail-wi0-f176.google.com [209.85.212.176]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id 76DC2E16E2 for ; Fri, 25 Jul 2014 09:13:19 +0000 (UTC) Received: by mail-wi0-f176.google.com with SMTP id bs8so616158wib.15 for ; Fri, 25 Jul 2014 02:13:18 -0700 (PDT) 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=RfxAAIZVQOPzUxywc98XNk3spoz7ZMUwlZctNR4RRvA=; b=hnzc1MIjCFBIQo1yCxZ9Stc1AoacYriQ3mXLmvuMLlNUqSIneTQnFsz/brfRsz7lAi CqXAfr3Kc7RdICwMRFM7JNyq0rxYVOwaoBOHLQwP+7a6FJhriaJvwOLBxzjHeEQuTWvr iR6RQFEwciX2HdRnZUHsVcOygMgkNzyo35+yUlpbhDrBFMBhHtHqQhK9Typ9FL53C9W4 z+dkpB5o7P85og4AMStDPZ6pebUZUISmSBw43F6TjVnOI7edWWi6JDUbAZI3t+SfRvDc kdQhmak4LzcRELVSY3FGi+hsOfu7Z8e8A0u8r+/dtDXZ6wY6rVwMTKmHAAal02cdgh4z 5hlg== X-Received: by 10.180.211.237 with SMTP id nf13mr3243413wic.47.1406279597994; Fri, 25 Jul 2014 02:13:17 -0700 (PDT) Received: from [192.168.1.40] ([41.85.145.17]) by mx.google.com with ESMTPSA id lg7sm8102109wjb.9.2014.07.25.02.13.16 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 25 Jul 2014 02:13:17 -0700 (PDT) Message-ID: <53D21F7A.2090906@gmail.com> Date: Fri, 25 Jul 2014 11:12:26 +0200 From: Alan McKinnon User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] triggered by backtracking - what does that mean? References: <1406202420.21481.0@numa-i> In-Reply-To: <1406202420.21481.0@numa-i> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Archives-Salt: f661a02f-0f7f-4c3f-81c8-208f66797453 X-Archives-Hash: 61c6c34b1cc1d68d4b92031a035ab0fa On 24/07/2014 13:47, Helmut Jarausch wrote: > Hi, > would anybody please explain what the following means: > > emerge -vp net-libs/libpcap > Calculating dependencies * waiting for lock on > /var/db/.pkg.portage_lockfile ... [ ok ] > ... done! > [ebuild R ] net-libs/libpcap-1.5.3 USE="bluetooth dbus ipv6 > -canusb -netlink -static-libs" 0 KiB > > Total: 1 package (1 reinstall), Size of downloads: 0 KiB > > !!! The following update(s) have been skipped due to unsatisfied > dependencies > !!! triggered by backtracking: > > net-libs/libpcap:0 It means you got tripped up by portage's New! Improved! Awesome! internal invisible magic. Subslots started it all and portage has to wade through tons of cruft to figure out the entire dependency tree. In a nutshell, it keeps searching deeper and deeper until it finds an answer that works, or until it hits a threshold. When it hits that threshold, portage exits and says it went as far as it should and has now given up. A solution is to have portage search deeper: emerge --backtrack=30 The default is 10 (usually plenty) but sometimes you need more. -- Alan McKinnon alan.mckinnon@gmail.com