From debbugs-submit-bounces@debbugs.gnu.org Sun May 07 00:20:09 2017 Received: (at submit) by debbugs.gnu.org; 7 May 2017 04:20:09 +0000 Received: from localhost ([127.0.0.1]:58946 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1d7Dg1-0005af-2d for submit@debbugs.gnu.org; Sun, 07 May 2017 00:20:09 -0400 Received: from eggs.gnu.org ([208.118.235.92]:49140) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1d7Dfz-0005aL-8e for submit@debbugs.gnu.org; Sun, 07 May 2017 00:20:07 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d7Dft-0004JD-4m for submit@debbugs.gnu.org; Sun, 07 May 2017 00:20:02 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=disabled version=3.3.2 Received: from lists.gnu.org ([2001:4830:134:3::11]:56566) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1d7Dft-0004J9-1b for submit@debbugs.gnu.org; Sun, 07 May 2017 00:20:01 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40105) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d7Dfr-0005Hp-Vs for bug-guix@gnu.org; Sun, 07 May 2017 00:20:00 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d7Dfo-0004Io-PG for bug-guix@gnu.org; Sun, 07 May 2017 00:19:59 -0400 Received: from world.peace.net ([50.252.239.5]:49008) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1d7Dfo-0004IR-Kw; Sun, 07 May 2017 00:19:56 -0400 Received: from pool-72-93-31-169.bstnma.east.verizon.net ([72.93.31.169] helo=jojen) by world.peace.net with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1d7Dfd-00074R-DX; Sun, 07 May 2017 00:19:45 -0400 From: Mark H Weaver To: Ludovic =?utf-8?Q?Court=C3=A8s?= Subject: Re: 08/09: services: nscd: Create /etc/resolv.conf if it does not exist. References: <20170502103303.32490.61398@vcs0.savannah.gnu.org> <20170502103307.0229020DD6@vcs0.savannah.gnu.org> Date: Sun, 07 May 2017 00:19:33 -0400 In-Reply-To: <20170502103307.0229020DD6@vcs0.savannah.gnu.org> ("Ludovic \=\?utf-8\?Q\?Court\=C3\=A8s\=22's\?\= message of "Tue, 2 May 2017 06:33:05 -0400 (EDT)") Message-ID: <87wp9tmh7u.fsf@netris.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 2001:4830:134:3::11 X-Spam-Score: -5.0 (-----) X-Debbugs-Envelope-To: submit Cc: bug-guix@gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -5.0 (-----) ludo@gnu.org (Ludovic Court=C3=A8s) writes: > civodul pushed a commit to branch master > in repository guix. > > commit 49f9d7f697d19870f01104cdb6a90a32aea87679 > Author: Ludovic Court=C3=A8s > Date: Tue May 2 12:21:31 2017 +0200 > > services: nscd: Create /etc/resolv.conf if it does not exist. >=20=20=20=20=20 > * gnu/services/base.scm (nscd-activation): Create /etc/resolv.conf if= it > does not exist yet. This commit broke the boot process on my system. The problem is that I'm using Network Manager, which makes /etc/resolv.conf into a symlink that points to /var/run/NetworkManager/resolv.conf. Since /var/run is cleaned during early boot, when this new activation code runs, /etc/resolv.conf is a broken symlink. I guess that 'file-exists?' returns #false for a broken symlink, and the 'call-with-output-file' tries to open the target of the symlink, which fails. Mark > diff --git a/gnu/services/base.scm b/gnu/services/base.scm > index 67972bf..a64faa0 100644 > --- a/gnu/services/base.scm > +++ b/gnu/services/base.scm > @@ -1149,7 +1149,14 @@ the tty to run, among other things." > #~(begin > (use-modules (guix build utils)) > (mkdir-p "/var/run/nscd") > - (mkdir-p "/var/db/nscd"))) ;for the persistent ca= che > + (mkdir-p "/var/db/nscd") ;for the persistent ca= che > + > + ;; In libc 2.25 nscd uses inotify to watch /etc/resolv.conf, but o= nly if > + ;; that file exists when it is started. Thus create it here. > + (unless (file-exists? "/etc/resolv.conf") > + (call-with-output-file "/etc/resolv.conf" > + (lambda (port) > + (display "# This is a placeholder.\n" port)))))) >=20=20 > (define nscd-service-type > (service-type (name 'nscd) From debbugs-submit-bounces@debbugs.gnu.org Mon May 08 10:30:20 2017 Received: (at 26809-done) by debbugs.gnu.org; 8 May 2017 14:30:21 +0000 Received: from localhost ([127.0.0.1]:34457 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1d7jg4-0006Di-KJ for submit@debbugs.gnu.org; Mon, 08 May 2017 10:30:20 -0400 Received: from eggs.gnu.org ([208.118.235.92]:43502) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1d7jg2-0006DW-ID for 26809-done@debbugs.gnu.org; Mon, 08 May 2017 10:30:19 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d7jft-0000CF-CO for 26809-done@debbugs.gnu.org; Mon, 08 May 2017 10:30:13 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,RP_MATCHES_RCVD autolearn=disabled version=3.3.2 Received: from fencepost.gnu.org ([2001:4830:134:3::e]:52640) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d7jft-0000C9-AA; Mon, 08 May 2017 10:30:09 -0400 Received: from reverse-83.fdn.fr ([80.67.176.83]:57046 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1d7jfs-0005Yu-Ku; Mon, 08 May 2017 10:30:09 -0400 From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=) To: Mark H Weaver Subject: Re: bug#26809: 08/09: services: nscd: Create /etc/resolv.conf if it does not exist. References: <20170502103303.32490.61398@vcs0.savannah.gnu.org> <20170502103307.0229020DD6@vcs0.savannah.gnu.org> <87wp9tmh7u.fsf@netris.org> Date: Mon, 08 May 2017 16:30:06 +0200 In-Reply-To: <87wp9tmh7u.fsf@netris.org> (Mark H. Weaver's message of "Sun, 07 May 2017 00:19:33 -0400") Message-ID: <871srzmnf5.fsf@gnu.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2001:4830:134:3::e X-Spam-Score: -5.0 (-----) X-Debbugs-Envelope-To: 26809-done Cc: 26809-done@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -5.0 (-----) Mark H Weaver skribis: > ludo@gnu.org (Ludovic Court=C3=A8s) writes: > >> civodul pushed a commit to branch master >> in repository guix. >> >> commit 49f9d7f697d19870f01104cdb6a90a32aea87679 >> Author: Ludovic Court=C3=A8s >> Date: Tue May 2 12:21:31 2017 +0200 >> >> services: nscd: Create /etc/resolv.conf if it does not exist. >>=20=20=20=20=20 >> * gnu/services/base.scm (nscd-activation): Create /etc/resolv.conf i= f it >> does not exist yet. > > This commit broke the boot process on my system. The problem is that > I'm using Network Manager, which makes /etc/resolv.conf into a symlink > that points to /var/run/NetworkManager/resolv.conf. Since /var/run is > cleaned during early boot, when this new activation code runs, > /etc/resolv.conf is a broken symlink. > > I guess that 'file-exists?' returns #false for a broken symlink, and the > 'call-with-output-file' tries to open the target of the symlink, which > fails. Indeed. I guess this is fixed by c298fb133acbdc17e05a79c10ab9a9e214368264. Thanks, Ludo=E2=80=99. From unknown Sun Jul 27 03:20:54 2025 Received: (at fakecontrol) by fakecontrolmessage; To: internal_control@debbugs.gnu.org From: Debbugs Internal Request Subject: Internal Control Message-Id: bug archived. Date: Tue, 06 Jun 2017 11:24:04 +0000 User-Agent: Fakemail v42.6.9 # This is a fake control message. # # The action: # bug archived. thanks # This fakemail brought to you by your local debbugs # administrator