Bug#801737: dpkg: The problem spreads

[Guillem Jover]

Control: reassign -1 systemd
Control: retitle -1 systemd: On upgrade several pacakges get stuck when interacting with systemd

Hi!

Leaving some context here, the rest is in the bug log.

On Mon, 2015-10-19 at 20:44:20 +0200, Jean-Philippe MENGUAL wrote:
> Le 19/10/2015 14:58, Guillem Jover a écrit :
> >On Mon, 2015-10-19 at 06:35:49 +0200, Jean-Philippe MENGUAL wrote:
> >>Package: dpkg
> >>Version: 1.18.3
> >>Followup-For: Bug #801737
> >>The problem now happens with many packages. Thus dpkg freezes while setting:
> >>udev
> >>systemd-sysv
> >>modemmanager
> >>virtualbox-dkms
> >>I cannot manipulate (neither remove, nor reinstall, nor configure) pcscd,
> >>libgempc430.
> >>
> >>So there's a really big problem. Unable to track it with -D. Eow could I get
> >>more info? How can I clean my deps tree?
> >This to me does not seem to be a problem in dpkg itself, but something
> >very wrong on the system. From your ps output it seems the installation
> >is stuck in the configure script, which would seem to point to something
> >else.
> >
> >Could edit for example /var/lib/dpkg/info/udev.postinst, and add a
> >«set -x» at the beginning, just after the shebang. Then try running
> >«dpkg --configure udev»?
> >
> >It might be useful to see also where it is stuck in, you can check all
> >childs of the configure script with something like «pstree -p» for
> >example, or with «pgrep -P <PPID>», with PPID being the pid of the
> >configure script.
> >
> >Optionally you could attach to the process that seems to be stuck with
> >«strace -p PID», so see what's happening.

> Thanks for your answer. The results of these tests are here:
> http://sprunge.us/cCRi
> 
> I preferred testing with modemmanager, as udev created a lot of weird
> processes. If I understand all what I read, the problem would be with
> systemd, etc. Should I reassign there? Indeed, virtualbox, udev,
> modemmanager, could have problems related to systemd handling of services.

Doing so now.

> Thanks for your help. After it I'll try to reinstall pcscd as dpkg says "so
> irrelevant status, you should reinstall before removing", but I'm unable to
> reinstall it as apt-get tries to configure udev.

You could try perhaps doing: «apt-get download pcscd» and then
«dpkg -i pcscd_*.deb», but maybe that's not enough.

Thanks,
Guillem