Hi!

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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,
Guillem

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