Your message dated Tue, 20 Jan 2009 18:17:03 +0000 with message-id <e1lpl9r-0007kr...@ries.debian.org> and subject line Bug#512397: fixed in wide-dhcpv6 20080615-4 has caused the Debian Bug report #512397, regarding wide-dhcpv6-server: fails to disconnect from debconf, hanging postinst to be marked as done.
This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact ow...@bugs.debian.org immediately.) -- 512397: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=512397 Debian Bug Tracking System Contact ow...@bugs.debian.org with problems
--- Begin Message ---Package: wide-dhcpv6-server Version: 20080615-1 Severity: grave Justification: breaks upgrades On startup, dhcp6s does not close any stray file descriptors it may have inherited. When called from wide-dhcpv6-server.postinst, this includes fd 3, which is a pipe to debconf. The result of this is a hang on upgrade, with a process tree looking like this: 1511 pts/8 Ss+ 0:30 \_ /usr/bin/dpkg --admindir=/var/lib/dpkg --status-fd 20 --configure libiw29 wireless-tools imagemagick libmagick++10 libplot2c2 libpstoedit0c2a ldap-utils li 22001 pts/8 S+ 0:04 \_ /usr/bin/perl -w /usr/share/debconf/frontend /var/lib/dpkg/info/wide-dhcpv6-server.postinst configure 20061016-2 22009 pts/8 Z+ 0:00 \_ [wide-dhcpv6-ser] <defunct> 22031 ? Ss 0:00 /usr/sbin/dhcp6s -k /dev/null -P /var/run/dhcp6s.eth1.pid eth1 I can tell that the pipe to debconf is still open: $ sudo lsof -p 22001 | grep 'pipe$' frontend 22001 root 7w FIFO 0,6 29433263 pipe frontend 22001 root 8r FIFO 0,6 29433264 pipe $ sudo lsof -p 22031 | grep 'pipe$' dhcp6s 22031 root 3w FIFO 0,6 29433264 pipe wide-dhcpv6-server's postinst attempts to work around this problem by calling db_stop to let debconf know that it's finished. However, it only calls it if /etc/default/wide-dhcpv6-server does not exist, whereas it sources the confmodule unconditionally (usually a good idea anyway since sourcing the confmodule has weird semantics, re-execing the sourcing script), so unless I'm much mistaken it seems that it will always fail to upgrade. Calling db_stop is at best an ugly workaround anyway. Rather than calling db_stop, I would recommend that you make dhcp6s close all its inherited file descriptors on startup. The usual idiom for this is something like this (and no, as far as I know there is nothing neater): int fd; for (fd = 3; fd < 1024; ++fd) close(fd); The daemon(0, 0) call that dhcp6s already makes will take care of file descriptors 0, 1, and 2. For anyone affected by this, a workaround to allow the upgrade to proceed without inconvenient dpkg errors is to run '/etc/init.d/wide-dhcpv6-server restart' from a separate shell. Thanks, -- Colin Watson [cjwat...@debian.org]
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--- Begin Message ---Source: wide-dhcpv6 Source-Version: 20080615-4 We believe that the bug you reported is fixed in the latest version of wide-dhcpv6, which is due to be installed in the Debian FTP archive: wide-dhcpv6-client_20080615-4_amd64.deb to pool/main/w/wide-dhcpv6/wide-dhcpv6-client_20080615-4_amd64.deb wide-dhcpv6-relay_20080615-4_amd64.deb to pool/main/w/wide-dhcpv6/wide-dhcpv6-relay_20080615-4_amd64.deb wide-dhcpv6-server_20080615-4_amd64.deb to pool/main/w/wide-dhcpv6/wide-dhcpv6-server_20080615-4_amd64.deb wide-dhcpv6_20080615-4.diff.gz to pool/main/w/wide-dhcpv6/wide-dhcpv6_20080615-4.diff.gz wide-dhcpv6_20080615-4.dsc to pool/main/w/wide-dhcpv6/wide-dhcpv6_20080615-4.dsc A summary of the changes between this version and the previous one is attached. Thank you for reporting the bug, which will now be closed. If you have further comments please address them to 512...@bugs.debian.org, and the maintainer will reopen the bug report if appropriate. Debian distribution maintenance software pp. Jeremie Corbier <jeremie.corb...@resel.enst-bretagne.fr> (supplier of updated wide-dhcpv6 package) (This message was generated automatically at their request; if you believe that there is a problem with it please contact the archive administrators by mailing ftpmas...@debian.org) -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Format: 1.8 Date: Tue, 20 Jan 2009 15:33:37 +0100 Source: wide-dhcpv6 Binary: wide-dhcpv6-server wide-dhcpv6-client wide-dhcpv6-relay Architecture: source amd64 Version: 20080615-4 Distribution: unstable Urgency: medium Maintainer: Jeremie Corbier <jeremie.corb...@resel.enst-bretagne.fr> Changed-By: Jeremie Corbier <jeremie.corb...@resel.enst-bretagne.fr> Description: wide-dhcpv6-client - DHCPv6 client for automatic IPv6 hosts configuration wide-dhcpv6-relay - DHCPv6 relay for automatic IPv6 hosts configuration wide-dhcpv6-server - DHCPv6 server for automatic IPv6 hosts configuration Closes: 512397 Changes: wide-dhcpv6 (20080615-4) unstable; urgency=medium . * debian/patches: added 200_close-fds.diff so wide-dhcpv6 binaries close inherited file descriptors, from debconf, for instance (Closes: #512397). Thanks to Colin Watson for noticing and providing a fix. * debian/wide-dhcpv6-client.config: don't show Debconf note saying that one should configure dhcp6c manually right after its installation. This should not be needed anymore thanks to profiles/default configuration. * debian/watch: use qa.debian.org SourceForge redirector. Checksums-Sha1: aeb691098ba936b90bf771c05406242d0d744bcf 1304 wide-dhcpv6_20080615-4.dsc 6a0d8ef45e7a25cb2bbfdfc05674fa1d97a402c9 18997 wide-dhcpv6_20080615-4.diff.gz 4ce48fd03391f5392da120f18a98fa640cf1bc65 85878 wide-dhcpv6-server_20080615-4_amd64.deb e10a7e64e5f65e89b3e4ba3f9b08dcdc7837fa6d 103360 wide-dhcpv6-client_20080615-4_amd64.deb edf53b81c9e5d9982cd22d3c8a19c76b4631d228 43062 wide-dhcpv6-relay_20080615-4_amd64.deb Checksums-Sha256: ba1a4fd6db70883200fd721b4f2377989bb92cf195e18c18d9f3b386dcd16b87 1304 wide-dhcpv6_20080615-4.dsc d9517237e77a8e2b60a6c8cbbca0338853a30bc4e199d76ae6ae8eb76037945d 18997 wide-dhcpv6_20080615-4.diff.gz 69efe866dc996a871181d7e120db289c1cca0cb47adbf3fd9afcf1788d87a9b6 85878 wide-dhcpv6-server_20080615-4_amd64.deb b6dfff4bf46426212aaf7fc90220cb0e3c434c9e5d298355371d689edb4a57a9 103360 wide-dhcpv6-client_20080615-4_amd64.deb 64a9404ef0b5f7cfb185f5524401f668ae3912522161e21b59e880eabc0e85f7 43062 wide-dhcpv6-relay_20080615-4_amd64.deb Files: ffda22ca9bfa4f4d000bdafffc605fc4 1304 net optional wide-dhcpv6_20080615-4.dsc 04cd4a7b4337c068d60415f7726aa45f 18997 net optional wide-dhcpv6_20080615-4.diff.gz 41df717da6933268bb6da19f58b9b00a 85878 net optional wide-dhcpv6-server_20080615-4_amd64.deb 04b994c03a64b84d5b2fa0bad529c701 103360 net optional wide-dhcpv6-client_20080615-4_amd64.deb e3537c14b13b3bd56b140009d6c6233e 43062 net optional wide-dhcpv6-relay_20080615-4_amd64.deb -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAkl2FFoACgkQeGfVPHR5Nd0f3QCgpxBNkBhwrZVNYQc54l8KKx7a DAAAn09SpBVQ9sPck0+xNgDakAolisv8 =roP9 -----END PGP SIGNATURE-----
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