Hi, somewhat recently new official buildds were added with IPv6-only connectivity. I'm not aware of an announcement, but I noticed this with #962019, where src:perl suddenly failed to build due to test suite failures.
This was quickly diagnosed to be a result of passing the AI_ADDRCONFIG flag to getaddrinfo(3). Quoting from that manual page: If hints.ai_flags includes the AI_ADDRCONFIG flag, then IPv4 addresses are returned in the list pointed to by res only if the local system has at least one IPv4 address configured, and IPv6 addresses are returned only if the local system has at least one IPv6 address configured. The loopback address is not considered for this case as valid as a configured address. This flag is useful on, for example, IPv4-only systems, to ensure that getaddrinfo() does not return IPv6 socket addresses that would always fail in connect(2) or bind(2). We patched the src:perl test suite to work around this, but it soon became evident that this was not an isolated case. I've since done a test rebuild of the archive on a system with no internet connectivity at all but an IPv6 address configured on a non-lo device. I found a handful of generic "needs-internet" bugs that I've filed separate bugs about, and 130 build failures related to the IPv6-only setup. My understanding is that all these failures are latent issues that will become visible when an IPv6-only buildd happens to try and build such a package. So they should be fixed; not sure if this should be considered release critical. It turns out that a majority of these failures are in the Perl world: 88 of the 130 failures can be fixed just by changing libio-socket-ip-perl. I've filed #964902 about this. However, 42 packages remain that are failing for me and not affected by the libio-socket-ip-perl part of this (or at least not fixed by my proposed patch in #964902). I've eyeballed many of them and most if not all have AI_ADDRCONFIG handling in their source code. So I'm pretty sure of the results, but of course it wouldn't hurt for other people to recheck them. An easy-ish way to do that should be something like # unshare -n # ip li set lo up # ip dev add dummy0 type dummy # ip li set dummy0 up FWIW, while the amount of breakage does not seem massive, I think the numbers indicate that it might be good at least not to build the stable suites on these IPv6-only buildds. I'm not sure what the plan is there. Below is the list of remaining failures; a dd-list is also attached. A few already have bugs filed but not nearly all. Apologies in case there are false positives; I've spent quite a bit of time on this and did what I could to weed those out. capnproto_0.7.0-6 clamav_0.102.3+dfsg-1 datalad_0.12.6-1 feersum_1.407-2 glib2.0_2.64.3-1 gromacs_2020.2-2 h2o_2.2.5+dfsg2-5 haskell-conduit-extra_1.3.5-1 haskell-http-client_0.6.4.1-1 haskell-http-conduit_2.3.7.3-1 haskell-yesod-core_1.6.18-1 inn2_2.6.3+20200601-1 iodine_0.7.0-9 lbcd_3.5.2-3 libapache2-mod-perl2_2.0.11-2 libpqtypes_1.5.1-5 libvirt_6.0.0-7 m2crypto_0.35.2-2 myproxy_6.2.6-1 nbd_3.20-1 nbdkit_1.20.4-3 neon27_0.31.1-1 ngircd_26-1 nmh_1.7.1-6 nng_1.3.0-1 openconnect_8.10-1 remctl_3.16-4 restinio_0.6.6-1 ruby-em-http-request_1.1.5-2 ruby-em-redis_0.3.0+gh-2 ruby-em-websocket_0.5.1-2 ruby-eventmachine_1.3~pre20190820-g10fb0c4-2 ruby-excon_0.72.0-2 ruby-rack_2.1.1-5 ruby-remcached_0.4.1-3 ruby-sinatra_2.0.8.1-2 ruby-twitter-stream_0.1.16-3 ruby-vcr_5.1.0-2 spamassassin_3.4.4-1 sslsplit_0.5.5-1 stunnel4_5.56+dfsg-3 tendermint-go-p2p_0.0~git20170113.0.3d98f67-1 Happy hacking, -- Niko Tyni nt...@debian.org
Alessio Treglia <ales...@debian.org> tendermint-go-p2p (U) Alexander Zangerl <a...@debian.org> nmh Andreas Cadhalpun <andreas.cadhal...@googlemail.com> clamav (U) Anton Gladky <gl...@debian.org> h2o (U) Apollon Oikonomopoulos <apoi...@debian.org> h2o Chris Lamb <la...@debian.org> ruby-rack (U) Christoph Berg <m...@debian.org> libpqtypes (U) Christoph Biedl <debian.a...@manchmal.in-ulm.de> ngircd ClamAV Team <pkg-clamav-de...@lists.alioth.debian.org> clamav Clint Adams <cl...@debian.org> haskell-conduit-extra (U) haskell-http-client (U) haskell-http-conduit (U) haskell-yesod-core (U) Damyan Ivanov <d...@debian.org> libapache2-mod-perl2 (U) Debian GNOME Maintainers <pkg-gnome-maintain...@lists.alioth.debian.org> glib2.0 Debian Go Packaging Team <pkg-go-maintain...@lists.alioth.debian.org> tendermint-go-p2p Debian Haskell Group <pkg-haskell-maintain...@lists.alioth.debian.org> haskell-conduit-extra haskell-http-client haskell-http-conduit haskell-yesod-core Debian Libvirt Maintainers <pkg-libvirt-maintain...@lists.alioth.debian.org> libvirt Debian Perl Group <pkg-perl-maintain...@lists.alioth.debian.org> feersum libapache2-mod-perl2 Debian PostgreSQL Maintainers <team+postgre...@tracker.debian.org> libpqtypes Debian Python Modules Team <python-modules-t...@lists.alioth.debian.org> m2crypto (U) Debian QA Group <packa...@qa.debian.org> lbcd Debian Ruby Extras Maintainers <pkg-ruby-extras-maintain...@lists.alioth.debian.org> ruby-em-http-request ruby-em-redis ruby-em-websocket ruby-eventmachine ruby-excon ruby-rack ruby-remcached ruby-sinatra ruby-twitter-stream ruby-vcr Debichem Team <debichem-de...@lists.alioth.debian.org> gromacs Dominic Hargreaves <d...@earth.li> libapache2-mod-perl2 (U) Felix Salfelder <fe...@salfelder.org> restinio gregor herrmann <gre...@debian.org> iodine libapache2-mod-perl2 (U) Guido Günther <a...@sigxcpu.org> libvirt (U) Hilko Bengen <ben...@debian.org> nbdkit sslsplit Iain Lane <la...@debian.org> glib2.0 (U) Ivan Kohler <ivan-deb...@420.am> libapache2-mod-perl2 (U) Jonas Genannt <jonas.gena...@capi2name.de> ruby-twitter-stream (U) Laszlo Boszormenyi (GCS) <g...@debian.org> neon27 nng stunnel4 (U) Laurent Arnoud <laur...@spkdev.net> ruby-eventmachine (U) Laurent Léonard <laur...@open-minds.org> libvirt (U) Luca Boccassi <bl...@debian.org> openconnect (U) Lucas Nussbaum <lu...@debian.org> ruby-rack (U) Manas Kashyap <manaskashyapt...@gmail.com> ruby-em-websocket (U) Marco d'Itri <m...@linux.it> inn2 Mathieu Parent <sath...@debian.org> ruby-vcr (U) Mattias Ellert <mattias.ell...@physics.uu.se> myproxy Michael Hanke <m...@debian.org> datalad (U) Michael Meskes <mes...@debian.org> clamav (U) Michael Tautschnig <m...@debian.org> clamav (U) Mike Miller <mtmil...@debian.org> openconnect NeuroDebian Team <t...@datalad.org> datalad Nicholas Breen <nbr...@debian.org> gromacs (U) Niko Tyni <nt...@debian.org> libapache2-mod-perl2 (U) Noah Meyerhans <no...@debian.org> spamassassin Paul van Tilburg <pau...@debian.org> ruby-eventmachine (U) ruby-rack (U) Per Andersson <avtob...@gmail.com> ruby-eventmachine (U) Peter Pentchev <r...@debian.org> stunnel4 Pirate Praveen <prav...@debian.org> ruby-em-redis (U) ruby-excon (U) ruby-sinatra (U) ruby-twitter-stream (U) Praveen Arimbrathodiyil <prav...@debian.org> ruby-remcached (U) Russ Allbery <r...@debian.org> remctl Sandro Tosi <mo...@debian.org> m2crypto Scott Kitterman <sc...@kitterman.com> clamav (U) Sebastian Andrzej Siewior <sebast...@breakpoint.cc> clamav (U) Tollef Fog Heen <tfh...@debian.org> ruby-em-http-request (U) Tom Lee <deb...@tomlee.co> capnproto tony mancill <tmanc...@debian.org> capnproto (U) iodine (U) Utkarsh Gupta <utka...@debian.org> ruby-excon (U) ruby-rack (U) Wouter Verhelst <wou...@debian.org> nbd Xavier Guimard <y...@debian.org> feersum (U) libapache2-mod-perl2 (U) Yaroslav Halchenko <deb...@onerussian.com> datalad (U) Youhei SASAKI <uwab...@gfd-dennou.org> ruby-rack (U) ruby-sinatra (U)
