On Mon, 15 Dec 2014 21:39:26 +0100, Henning Glawe wrote: > > > raising the severity again since this is still occurring in the altree > > > package. As it looks, altree removed the dependency on > > > libpdl-stats-perl. > > Ack (on the latter). > actually, libpdl-stats-perl seems not to have been rebuilt for jessie's PDL > version...
Oh :/ Also an interesting detail. > The real problem seems to be my assumption that triggers get only called when > all dependencies have been fulfilled... > wheezy's pdl packages' triggers (in pdl.postinst) call perl scripts, which in > turn use pdl modules. > during the dist-upgrade, perl has been updated to jessie's version, while pdl > is still at wheezy. Interestingly this happens for both Andreas and you but not for me. > perl API and module paths have been changed between wheezy and jessie, so the > perl/pdl scripts used in pdl's triggers (used for updating documentation > indices) fail, as they depend on the availability of PDL matching the > presently installed perl. I also thought about "interest" vs. "interest-noawait" but this probably doesn't help if the wheezy postinst/triggers gets called :/ > > ... I couldn't reproduce the bug (in 3 tries), rebuilding your scenario > > manually (i.e.: wheezy chroot, install altree, dist-upgrade). > > libpdl-stats-perl gets removed for me, "Processing triggers for pdl" > > never shows up. Excerpts from the dist-upgrade (full log attached): > > I could reproduce the issues (via pbuilder/cowbuilder chroot): > - build wheezy chroot (having the default pbuilder deps, i.e. build-essential > installed) > - install altree (which pulls in pdl) > - replace wheezy by jessie in /etc/apt/sources.list > two upgrade paths run into different errors: > 1. 'apt-get dist-upgrade' runs into the above mentioned error That's exactly what I did as well. (With an "apt-get update" before the dist-upgrade but I assume you ran this too.) > 2.a 'apt-get install dpkg apt' (works fine) > 2.b 'apt-get dist-upgrade' fails with an apparently unrelated dpkg-trigger > related issue: > (Reading database ... 15387 files and directories currently installed.) > Preparing to unpack .../libaudit1_1%3a2.4-1+b1_amd64.deb ... > Unpacking libaudit1:amd64 (1:2.4-1+b1) ... > dpkg: cycle found while processing triggers: > chain of packages whose triggers are or may be responsible: > man-db -> man-db > packages' pending triggers which are or may be unresolvable: > man-db: /usr/share/man > dpkg: error processing package man-db (--configure): > triggers looping, abandoned > Setting up libaudit1:amd64 (1:2.4-1+b1) ... > Errors were encountered while processing: > man-db > E: Sub-process /usr/bin/dpkg returned an error code (1) Hm, is this still not fixed? Anyway, different problem. [..] > > So for whatever reason, the order is different for me ... > > No idea what this tells us. > I think it tells us that my assumption (made already in wheezy), that a > trigger gets only called when PDL is usable with the presently installed perl > was wrong. > some facts: > - wheezy-pdl depends on perlapi-5.14.2 > - nevertheless pdl's documentation-update trigger gets called, while perl > has been already been replaced by the jessie version: Ack. The question is how to get pdl to be updated earlier, I guess. If I could reproduce the problem, I'd probably try Andreas' suggestion to add a versioned Breaks against older pdl versions to altree. Cheers, gregor -- .''`. Homepage: http://info.comodo.priv.at/ - OpenPGP key 0xBB3A68018649AA06 : :' : Debian GNU/Linux user, admin, and developer - http://www.debian.org/ `. `' Member of VIBE!AT & SPI, fellow of the Free Software Foundation Europe `- NP: Penelope Swales: Swallow
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