crash during upgrade from jaunty to karmic, 'utf8' codec can't decode byte 0xc3 in position 254: unexpected end of data

[Ernst Kloppenburg]

Binary package hint: update-manager

using 'update-notifier-kde -d', the upgrade stopped with a crash while packages upgrades were installed

a bug reporting application openened and said "kdesudo has crashed", but debug information was not sufficient to make a bug report

I guess it is rather a problem of update-manager.

I can retry the upgrade to help you debugging, as I did the upgrade on a _copy_ of my installation.

The upgrade was from a
jaunty system
+ libstdc++6,apt-cacher-ng from karmic
+ http://ppa.launchpad.net/kubuntu-ppa/backports/ubuntu

Terminal output:

$ update-notifier-kde -d
extracting 'karmic.tar.gz'
authenticate 'karmic.tar.gz' against 'karmic.tar.gz.gpg'
/var/lib/python-support/python2.6/dbus/connection.py:242: DeprecationWarning: object.__init__() takes no parameters
  super(Connection, self).__init__(*args, **kwargs)

adept_manager: Kein Prozess beendet
adept_updater: Kein Prozess beendet
 * Starting automatic crash report generation: apport
   ...done.
exitMainLoop
'utf8' codec can't decode byte 0xc3 in position 254: unexpected end of data
'utf8' codec can't decode byte 0xbc in position 0: unexpected code byte
Traceback (most recent call last):
  File "/tmp/tmplscAjz/karmic", line 7, in <module>
    sys.exit(main())
  File "/tmp/tmplscAjz/DistUpgradeMain.py", line 132, in main
    if app.run():
  File "/tmp/tmplscAjz/DistUpgradeController.py", line 1590, in run
    return self.fullUpgrade()
  File "/tmp/tmplscAjz/DistUpgradeController.py", line 1564, in fullUpgrade
    if not self.doDistUpgrade():
  File "/tmp/tmplscAjz/DistUpgradeController.py", line 1049, in doDistUpgrade
KCrash: Application 'kdesudo' crashing...
    "sock_file=/home/ernst/.kde/socket-rechner6/kdeinit4__0

[1]+ Stopped update-notifier-kde -d

[Ernst Kloppenburg (ernst-kloppenburg)]

I tried the upgrade with "apt-get inst

[Ernst Kloppenburg (ernst-kloppenburg)]

I retried the upgrade on a copy of the system with "update-manager -d" (after installing "apt-get install update-manager") -> nothing evil happened

[Ernst Kloppenburg (ernst-kloppenburg)]

Then I retried the upgrade on a copy of the system,
using 'update-notifier-kde -d'
-> the crash occured again!

The crash reporting assistant says:
Application: KdeSudo (kdesudo), signal: Segmentation fault
[Current thread is 0 (process 6756)]

Another interesting detail:
$ ps aux | grep dp
root 722 0.1 0.3 8980 6472 pts/4 Ss+ 11:38 0:00 /usr/bin/dpkg --force-overwrite --status-fd 18 --configure bash

[Michael Vogt (mvo)]

There are some errors:

2009-10-24 17:02:55,623 DEBUG error reading from self.master_fd ''utf8' codec can't decode byte 0xc3 in position 254: unexpected end of data'
2009-10-24 17:02:55,643 DEBUG error reading from self.master_fd ''utf8' codec can't decode byte 0xbc in position 0: unexpected code byte'
2009-10-24 17:04:34,758 DEBUG got a conffile-prompt from dpkg for file: '/etc/bash.bashrc'
2009-10-24 17:04:34,767 ERROR IOError in cache.commit(): '[Errno 2] No such file or directory: '/usr/share/python-qt4/widget-plugins/kde4.py''. Retrying (currentTry: 0)

but the last line seems to be the crucial one:

No such file or directory: '/usr/share/python-qt4/widget-plugins/kde4.py''

[Ernst Kloppenburg (ernst-kloppenburg)]

before the upgrade, the file was present (I had made a copy using 'rsync -ax' to sda1):

# ls -l /media/sda1/usr/share/python-qt4/widget-plugins/kde4.py
lrwxrwxrwx 1 root root 69 2009-10-12 07:26 /media/sda1/usr/share/python-qt4/widget-plugins/kde4.py -> ../../../lib/python2.6/dist-packages/PyQt4/uic/widget-plugins/kde4.py

# ls -l /media/sda1/usr/lib/python2.6/dist-packages/PyQt4/uic/widget-plugins/kde4.py
-rw-r--r-- 1 root root 1461 2009-03-27 15:46 /media/sda1/usr/lib/python2.6/dist-packages/PyQt4/uic/widget-plugins/kde4.py

so the file was probably removed during the upgrade.

There should be some way to 'statically link' the dependencies of the update-manager.

[Jonathan Thomas (echidnaman)]

"No such file or directory: '/usr/share/python-qt4/widget-plugins/kde4.py''" is being tracked at bug 459471