update-notifier-kde.py crashed with SIGSEGV in QSocketNotifier::setEnabled()

Bug #334757 reported by Łukasz Kuryło on 2009-02-26
This bug affects 53 people
Affects Status Importance Assigned to Milestone
KDE Bindings
python-qt4 (Ubuntu)
Scott Kitterman
Scott Kitterman

Bug Description

Binary package hint: update-notifier-kde

Crashed when disabled WIFI and BT using laptop button. kbluetooth4 crashed in the same time.

ProblemType: Crash
Architecture: amd64
CrashCounter: 1
DistroRelease: Ubuntu 9.04
ExecutablePath: /usr/share/python-support/update-notifier-kde/update-notifier-kde.py
InterpreterPath: /usr/bin/python2.5
Package: update-notifier-kde 0.14
PackageArchitecture: all
ProcCmdline: python /usr/bin/update-notifier-kde
 PATH=(custom, user)
Signal: 11
SourcePackage: update-notifier-kde
 QSocketNotifier::setEnabled ()
 ?? ()
 ?? ()
 QMetaObject::activate ()
 QSocketNotifier::activated ()
Title: update-notifier-kde.py crashed with SIGSEGV in QSocketNotifier::setEnabled()
Uname: Linux 2.6.28-8-generic x86_64
UserGroups: adm admin cdrom dialout lp lpadmin plugdev sambashare

Łukasz Kuryło (lukasz-kurylo) wrote :

StacktraceTop:QSocketNotifier::setEnabled ()
?? ()
?? ()
QMetaObject::activate ()
QSocketNotifier::activated ()

Changed in update-notifier-kde:
importance: Undecided → Medium
Jonathan Thomas (echidnaman) wrote :

Looks like a python-qt4-dbus bug.

Changed in python-qt4 (Ubuntu):
status: New → Confirmed

Am Mittwoch 25 März 2009 18:06:36 schrieb Jonathan Thomas:
> Looks like a python-qt4-dbus bug.
> ** Changed in: python-qt4 (Ubuntu)
> Status: New => Confirmed
> ** Changed in: python-qt4 (Ubuntu)
> Sourcepackagename: update-notifier-kde => python-qt4
Thanks, for the answere,, there were some blocked updates for my
system. I think they are needed to fix some problems, i've installed
them and hope it is fixed now.

regards dennis

Alan Weeks (aweeks1) wrote :

Ubuntu v9.04 upgraded from 8.04

This fault occurred during the night when PC was unattended.

Changed in kdebindings:
status: Unknown → Confirmed
Changed in kdebindings:
importance: Unknown → High
Alejandro J. Cura (alecu) wrote :

This seems to be a bug with the DBus PyQt mainloop.

I'm attaching a python script that reproduces this bug.
On my Precise Beta 2, amd64, it segfaults like above 4 out of 10 runs.

Alejandro J. Cura (alecu) wrote :
Scott Kitterman (kitterman) wrote :

Fixed upstream. I have a patch from upstream and will upload the proposed fix shortly.

Scott Kitterman (kitterman) wrote :

I think this is RC for Ubuntu now due to it's impact on UbuntuOne. I'll upload to precise-proposed and then the release team can let it in for release if they want to.

Changed in python-qt4 (Ubuntu):
importance: Medium → High
status: Confirmed → In Progress
assignee: nobody → Scott Kitterman (kitterman)
Changed in python-qt4 (Ubuntu Precise):
milestone: none → ubuntu-12.04
Scott Kitterman (kitterman) wrote :

Uploaded to precise-proposed for release team review.

Changed in python-qt4 (Ubuntu Precise):
status: In Progress → Fix Committed
Alejandro J. Cura (alecu) wrote :

I've installed the package from -proposed, and my script to reproduce the bug is not segfaulting anymore.
Thanks Scott for working on this!

Launchpad Janitor (janitor) wrote :

This bug was fixed in the package python-qt4 - 4.9.1-2ubuntu1

python-qt4 (4.9.1-2ubuntu1) precise-proposed; urgency=low

  * Fix dbus related PyQt application crashes (LP: #334757)
    - Add debian/patches/dbus.patch from upstream
 -- Scott Kitterman <email address hidden> Sat, 14 Apr 2012 16:12:34 -0400

Changed in python-qt4 (Ubuntu Precise):
status: Fix Committed → Fix Released
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