Application: plasma-desktop (0.3)
KDE Platform Version: 4.4.2 (KDE 4.4.2)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-18-generic i686
Distribution: Ubuntu lucid (development branch)

-- Information about the crash:
After I have updated from KDE 4.4.1 to 4.4.2 the plasma desktop crashes when I unfold the yakuake console. In most cases it recovers but it may also happen that the screen remains black. In case that matters: plasma theme is Air for Netbooks, widgets on the desktop are folderview, customizable weather, activity bar and daisy.

The crash can be reproduced every time.

 -- Backtrace:
Application: Plasma-Arbeitsfläche (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7716aa0 (LWP 4106))]

Thread 2 (Thread 0xa97f9b70 (LWP 4112)):
#0  0x009c5f5b in pthread_mutex_lock () from /lib/tls/i686/cmov/libpthread.so.0
#1  0x010d3061 in ?? () from /lib/libglib-2.0.so.0
#2  0x010d34b8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#3  0x00f3460f in QEventDispatcherGlib::processEvents (this=0x8f86f60, flags=...) at kernel/qeventdispatcher_glib.cpp:414
#4  0x00f07059 in QEventLoop::processEvents (this=0xa97f9290, flags=) at kernel/qeventloop.cpp:149
#5  0x00f074aa in QEventLoop::exec (this=0xa97f9290, flags=...) at kernel/qeventloop.cpp:201
#6  0x00e035a8 in QThread::exec (this=0x8f706c0) at thread/qthread.cpp:487
#7  0x00ee6c1b in QInotifyFileSystemWatcherEngine::run (this=0x8f706c0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00e0632e in QThreadPrivate::start (arg=0x8f706c0) at thread/qthread_unix.cpp:248
#9  0x009c396e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#10 0x08a659de in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb7716aa0 (LWP 4106)):
[KCrash Handler]
#6  TaskManager::Task::icon (this=0x0, width=32, height=32, allowResize=true) at ../../../libs/taskmanager/task.cpp:406
#7  0x066f94ca in ?? () from /usr/lib/kde4/plasma_applet_daisy.so
#8  0x06700b63 in ?? () from /usr/lib/kde4/plasma_applet_daisy.so
#9  0x00f0dc9a in QMetaObject::metacall (object=0x9551968, cl=145683392, idx=-1081241708, argv=0xbf8d8f98) at kernel/qmetaobject.cpp:237
#10 0x00f1c3d5 in QMetaObject::activate (sender=0x91cdcf8, m=0xd980ec, local_signal_index=9, argv=0xbf8d90f4) at kernel/qobject.cpp:3293
#11 0x00d26129 in KWindowSystem::windowChanged (this=0x91cdcf8, _t1=44040272, _t2=0xbf8d9154) at ./kwindowsystem.moc:178
#12 0x00d29226 in KWindowSystemPrivate::x11Event (this=0x91cdc70, ev=0xbf8d962c) at ../../kdeui/windowmanagement/kwindowsystem_x11.cpp:180
#13 0x00bc85d6 in KAppX11HackWidget::publicx11Event (this=0x8f30ba8, _event=0xbf8d962c) at ../../kdeui/kernel/kapplication.cpp:903
#14 KApplication::x11EventFilter (this=0x8f30ba8, _event=0xbf8d962c) at ../../kdeui/kernel/kapplication.cpp:953
#15 0x01f770ea in PlasmaApp::x11EventFilter (this=0x8f30ba8, event=0xbf8d962c) at ../../../../plasma/desktop/shell/plasmaapp.cpp:600
#16 0x07320660 in qt_x11EventFilter (ev=0xbf8d962c) at kernel/qapplication_x11.cpp:399
#17 0x0732fe90 in QApplication::x11ProcessEvent (this=0x8f30ba8, event=0xbf8d962c) at kernel/qapplication_x11.cpp:3231
#18 0x073604aa in x11EventSourceDispatch (s=0x8f399a8, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#19 0x010cf5e5 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#20 0x010d32d8 in ?? () from /lib/libglib-2.0.so.0
#21 0x010d34b8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#22 0x00f345d5 in QEventDispatcherGlib::processEvents (this=0x8f36b38, flags=...) at kernel/qeventdispatcher_glib.cpp:412
#23 0x0735ffd5 in QGuiEventDispatcherGlib::processEvents (this=0x8f36b38, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#24 0x00f07059 in QEventLoop::processEvents (this=0xbf8d9924, flags=) at kernel/qeventloop.cpp:149
#25 0x00f074aa in QEventLoop::exec (this=0xbf8d9924, flags=...) at kernel/qeventloop.cpp:201
#26 0x00f0b69f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#27 0x072a0577 in QApplication::exec () at kernel/qapplication.cpp:3579
#28 0x01f6319e in kdemain (argc=1, argv=0x8f1c6b8) at ../../../../plasma/desktop/shell/main.cpp:112
#29 0x0804e133 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x8f25430 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x8051465 "0") at ../../kinit/kinit.cpp:717
#30 0x0804ec6d in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at ../../kinit/kinit.cpp:1209
#31 0x0804f190 in handle_requests (waitForPid=<value optimized out>) at ../../kinit/kinit.cpp:1402
#32 0x0804fe4f in main (argc=4, argv=0xbf8da3d4, envp=0xbf8da3e8) at ../../kinit/kinit.cpp:1845

Possible duplicates by query: bug 230180, bug 229892, bug 227983, bug 226197, bug 220258.

Reported using DrKonqi