liferea spits python ImportError during startup

[Matti Lindell]

Binary package hint: liferea

liferea 1.4.14-0ubuntu4
xulrunner-1.9 1.9~b5+nobinonly-0ubuntu1

Starting liferea from a console throws a python exception:

$ liferea
Obtaining the module object from Python failed.

Traceback (most recent call last):
cant import cStringIO
<type 'exceptions.ImportError'>: /usr/lib/python2.5/lib-dynload/time.so: undefined symbol: PyExc_ValueError

It could have something to do with xulrunner as /usr/bin/liferea is setting LD_LIBRARY_PATH=/usr/lib/xulrunner-1.9b5, but without specifying the LD_LIBRARY_PATH there's no error. No sure if this just cosmetical as liferea seems to function okay nevertheless.

[Jean-Baptiste Lallement (jibel)]

Hi,

Confirming with:
liferea 1.4.14-0ubuntu4
xulrunner-1.9 1.9~b5+nobinonly-0ubuntu3

[Jean-Baptiste Lallement (jibel)]

Hi again,

LD_LIBRARY_PATH is set to /usr/lib/xulrunner-1.9b5 because xulrunner ships its own sqlite3 library which differs from the one installed with package libsqlite3-0. See bug report #203413 for details.

Just a guess, but as a side effect, setting LD_LIBRARY_PATH loads other libraries in /usr/lib/xulrunner-1.9b5/ which may need symbols not available in librairies shipped with the system. The error let me think this is related to pyxpcom extension shipped with xulrunner.

This may be harmless or this may be not, and it could be the reason of occasional segfaults ( see #215016 )

Affecting this report to xulrunner-1.9

Cheers

[Jeff Imperial (jeffreyimperial)]

I'm also getting this problem. Commandline output as follows:

jeff@jeff-linux:~$ liferea
Obtaining the module object from Python failed.

Traceback (most recent call last):
cant import cStringIO
<type 'exceptions.ImportError'>: /usr/lib/python2.5/lib-dynload/time.so: undefined symbol: PyExc_ValueError
Liferea did receive signal 11 (Segmentation fault).
jeff@jeff-linux:~$

[John Vivirito (gnomefreak)]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Jeff Imperial wrote:
| I'm also getting this problem. Commandline output as follows:
|
| jeff@jeff-linux:~$ liferea
| Obtaining the module object from Python failed.
|
| Traceback (most recent call last):
| cant import cStringIO
| <type 'exceptions.ImportError'>:
/usr/lib/python2.5/lib-dynload/time.so: undefined symbol: PyExc_ValueError
| Liferea did receive signal 11 (Segmentation fault).
| jeff@jeff-linux:~$
|
I am unable to reproduce this bug in Hardy with version as follows
gnomefreak@Development:~$ policy liferea
liferea:
~ Installed: 1.4.14-0ubuntu4
~ Candidate: 1.4.14-0ubuntu4

- --
Sincerely Yours,
~ John Vivirito

https://launchpad.net/~gnomefreak
https://wiki.ubuntu.com/JohnVivirito
Linux User# 414246
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=wHU8
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[Matti Lindell (mlind)]

Jeff, you're probably experiencing bug #215016 instead as in this bug liferea doesn't segfault.

[Jean-Baptiste Lallement (jibel)]

I'm closing this report because this is no more an issue in Intrepid.

[Dmitry Agafonov (dmitry-agafonov)]

Will the fix be backported to LTS?

[Jean-Baptiste Lallement (jibel)]

Agafonov, if you want to pursue a fix in Hardy please read and follow https://wiki.ubuntu.com/StableReleaseUpdates . Thank you.

[Alexander Sack (asac)]

On Tue, Dec 09, 2008 at 10:47:28PM -0000, Jean-Baptiste Lallement wrote:
> Agafonov, if you want to pursue a fix in Hardy please read and follow
> https://wiki.ubuntu.com/StableReleaseUpdates . Thank you.
>

What fix is this about ? the bug title is about bug 209041 which isnt
fixed in xulrunner.

is this about something else in liferea that is now fixed? If so, the
bug title is wrong (if it were right it probably would be a dupe of
the bug above anyway). Please clarify! ;) ...thanks

 - Alexander

[Jean-Baptiste Lallement (jibel)]

The import error reported above is not reproducible in Intrepid and Jaunty as least
=====
Traceback (most recent call last):
cant import cStringIO
<type 'exceptions.ImportError'>: /usr/lib/python2.5/lib-dynload/time.so: undefined symbol: PyExc_ValueError
=====

The following change may have solved this issue.
===============
--- liferea-1.4.14/src/liferea.in 2007-11-21 23:37:39.000000000 +0100
+++ liferea-1.4.23/src/liferea.in 2008-11-29 20:57:04.000000000 +0100
@@ -14,19 +14,6 @@

 params="$@"

-#
-# If we run with Gecko or XulRunner we need to set
-# LD_LIBRARY_PATH (WebKit and GtkHTML do not need this).
-#
-if [ "@MOZILLA_LIB_ROOT@" != "" ]; then
- if [ "$LD_LIBRARY_PATH" = "" ]; then
- LD_LIBRARY_PATH=@MOZILLA_LIB_ROOT@
- else
- LD_LIBRARY_PATH=@MOZILLA_LIB_ROOT@:$LD_LIBRARY_PATH
- fi
- export LD_LIBRARY_PATH
-fi
-
 if [ -z "$DBUS_SESSION_BUS_ADDRESS" ]; then
  eval `dbus-launch`
  export DBUS_SESSION_BUS_ADDRESS
=================

I'm not sure why and when this has been fixed but it's fixed.

[Alexander Sack (asac)]

On Thu, Dec 18, 2008 at 10:18:58PM -0000, Jean-Baptiste Lallement wrote:
>
> I'm not sure why and when this has been fixed but it's fixed.
>

OK, then lets be happy and celebrate ... thanks for the info and cheers!

 - Alexander