plasma-desktop crashed with SIGSEGV in QGraphicsItem::setVisible()

[Alex Lowe]

Binary package hint: kdebase-workspace

Any time I start plasma-desktop with a pre-existing ~/.kde/share/config/plasma-desktoprc file it crashes.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: plasma-desktop 4:4.6.2a-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-8.41-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Thu Apr 7 16:53:46 2011
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/plasma-desktop
InstallationMedia: Kubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110303)
ProcCmdline: /usr/bin/plasma-desktop --nocrashhandler
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f468442c030 <QGraphicsItem::setVisible(bool)>: mov 0x8(%rdi),%rdi
 PC (0x7f468442c030) ok
 source "0x8(%rdi)" (0x6365736c75706281) not located in a known VMA region (needed readable region)!
 destination "%rdi" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: kdebase-workspace
StacktraceTop:
 QGraphicsItem::setVisible (this=0x6365736c75706279, visible=false) at graphicsview/qgraphicsitem.cpp:2438
 hide (this=0x1437680) at /usr/include/qt4/QtGui/qgraphicsitem.h:221
 MicroBlog::downloadHistory (this=0x1437680) at ../../../applets/microblog/microblog.cpp:839
 MicroBlog::configChanged (this=0x1437680) at ../../../applets/microblog/microblog.cpp:368
 MicroBlog::init (this=0x1437680) at ../../../applets/microblog/microblog.cpp:88
Title: plasma-desktop crashed with SIGSEGV in QGraphicsItem::setVisible()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
XsessionErrors:
 (knotify4:1836): GStreamer-CRITICAL **: gst_debug_add_log_function: assertion `func != NULL' failed
 (dropbox:2085): Gtk-WARNING **: /home/lengau/.dropbox-dist/libstdc++.so.6: version `GLIBCXX_3.4.11' not found (required by /usr/lib/gtk-2.0/2.10.0/engines/liboxygen-gtk.so)
 (dropbox:2085): Gtk-WARNING **: /home/lengau/.dropbox-dist/libstdc++.so.6: version `GLIBCXX_3.4.11' not found (required by /usr/lib/gtk-2.0/2.10.0/engines/liboxygen-gtk.so)
 (exe:3034): Gdk-WARNING **: XID collision, trouble ahead

[Apport retracing service (apport)]

StacktraceTop:
 QGraphicsItem::setVisible (this=0x6365736c75706279, visible=false) at graphicsview/qgraphicsitem.cpp:2438
 hide (this=0x1437680) at /usr/include/qt4/QtGui/qgraphicsitem.h:221
 MicroBlog::downloadHistory (this=0x1437680) at ../../../applets/microblog/microblog.cpp:839
 MicroBlog::configChanged (this=0x1437680) at ../../../applets/microblog/microblog.cpp:368
 MicroBlog::init (this=0x1437680) at ../../../applets/microblog/microblog.cpp:88

[Harald Sitter (apachelogger)]

Hi Alex!

Thanks for reporting this bug! Your bug seems to be a problem with the KDE program itself, and not with our KDE packages. While we appreciate your issue, it would be better if it was tracked at https://bugs.kde.org, so that the KDE developers can deal with this speedily and have direct communication with you as the reporter for more effective debugging.

Thanks!