Bug 291439

Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.3 (4.7.3)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-14-generic i686
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:

new kMail does not work.
after opening still downloading contents of the folder.
can not use kMail

can not make e-mail migration from kMail to thunderbird

The crash can be reproduced every time.

-- Backtrace:
Application: Powłoka pulpitu Plazmy (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb77c9b20 (LWP 1543))]

Thread 3 (Thread 0xb1470b70 (LWP 1544)):
#0  0x00dbed10 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0x02bda7d5 in do_gettime (frac=0xb1470010, sec=0xb1470008) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0x02cad4b6 in QTimerInfoList::updateCurrentTime (this=0xb0b0107c) at kernel/qeventdispatcher_unix.cpp:339
#4  0x02cad80a in QTimerInfoList::timerWait (this=0xb0b0107c, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0x02cac053 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xb147011c) at kernel/qeventdispatcher_glib.cpp:136
#6  0x02cac0ed in timerSourcePrepare (source=0xb0b01048, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0x08a5488c in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0x08a55637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0x08a55c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0x02cacb37 in QEventDispatcherGlib::processEvents (this=0xa52ac08, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0x02c7d1dd in QEventLoop::processEvents (this=0xb14702a0, flags=...) at kernel/qeventloop.cpp:149
#12 0x02c7d421 in QEventLoop::exec (this=0xb14702a0, flags=...) at kernel/qeventloop.cpp:201
#13 0x02b8090b in QThread::exec (this=0xa529490) at thread/qthread.cpp:498
#14 0x02c5de2d in QInotifyFileSystemWatcherEngine::run (this=0xa529490) at io/qfilesystemwatcher_inotify.cpp:248
#15 0x02b837b3 in QThreadPrivate::start (arg=0xa529490) at thread/qthread_unix.cpp:331
#16 0x020e1d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#17 0x008d80ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xafb91b70 (LWP 1545)):
#0  0x020e3dc6 in pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
#1  0x008e5f14 in pthread_mutex_lock () from /lib/i386-linux-gnu/libc.so.6
#2  0x08a548bb in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x08a55637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x08a55c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x02cacb37 in QEventDispatcherGlib::processEvents (this=0xa58d4d0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x02c7d1dd in QEventLoop::processEvents (this=0xafb912a0, flags=...) at kernel/qeventloop.cpp:149
#7  0x02c7d421 in QEventLoop::exec (this=0xafb912a0, flags=...) at kernel/qeventloop.cpp:201
#8  0x02b8090b in QThread::exec (this=0xa58bbd8) at thread/qthread.cpp:498
#9  0x02c5de2d in QInotifyFileSystemWatcherEngine::run (this=0xa58bbd8) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x02b837b3 in QThreadPrivate::start (arg=0xa58bbd8) at thread/qthread_unix.cpp:331
#11 0x020e1d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x008d80ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb77c9b20 (LWP 1543)):
[KCrash Handler]
#7  operator== (value=0, this=0x9) at /usr/include/qt4/QtCore/qbasicatomic.h:70
#8  isNull (this=0xb0f70d0) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#9  operator! (this=0xb0f70d0) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#10 TaskManager::TaskItem::task (this=0xb359678) at ../../../libs/taskmanager/taskitem.cpp:113
#11 0x054e1662 in WindowTaskItem::publishIconGeometry (this=0xb30ca68) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#12 0x054f2688 in AbstractTaskItem::timerEvent (this=0xb30ca68, event=0xbfd3ecfc) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#13 0x02c96994 in QObject::event (this=0xb30ca68, e=0xbfd3ecfc) at kernel/qobject.cpp:1181
#14 0x01ba6bd4 in QGraphicsWidget::event (this=0xb30ca68, event=0xbfd3ecfc) at graphicsview/qgraphicswidget.cpp:1455
#15 0x014e7d54 in notify_helper (e=0xbfd3ecfc, receiver=0xb30ca68, this=0x9ca6af0) at kernel/qapplication.cpp:4486
#16 QApplicationPrivate::notify_helper (this=0x9ca6af0, receiver=0xb30ca68, e=0xbfd3ecfc) at kernel/qapplication.cpp:4458
#17 0x014ed103 in QApplication::notify (this=0xbfd3ecfc, receiver=0xb30ca68, e=0xbfd3ecfc) at kernel/qapplication.cpp:3886
#18 0x0113e681 in KApplication::notify (this=0x9c8fca0, receiver=0xb30ca68, event=0xbfd3ecfc) at ../../kdeui/kernel/kapplication.cpp:311
#19 0x02c7e19e in QCoreApplication::notifyInternal (this=0x9c8fca0, receiver=0xb30ca68, event=0xbfd3ecfc) at kernel/qcoreapplication.cpp:787
#20 0x02caec10 in sendEvent (event=0xbfd3ecfc, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#21 QTimerInfoList::activateTimers (this=0x9ca3e34) at kernel/qeventdispatcher_unix.cpp:603
#22 0x02cac155 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#23 idleTimerSourceDispatch (source=0x9ca48c0) at kernel/qeventdispatcher_glib.cpp:231
#24 0x08a5525f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#25 0x08a55990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#26 0x08a55c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#27 0x02cacada in QEventDispatcherGlib::processEvents (this=0x9c4d248, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#28 0x0159fe3a in QGuiEventDispatcherGlib::processEvents (this=0x9c4d248, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#29 0x02c7d1dd in QEventLoop::processEvents (this=0xbfd3ef74, flags=...) at kernel/qeventloop.cpp:149
#30 0x02c7d421 in QEventLoop::exec (this=0xbfd3ef74, flags=...) at kernel/qeventloop.cpp:201
#31 0x02c8219d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#32 0x014e58f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#33 0x002d818b in kdemain (argc=1, argv=0xbfd3f174) at ../../../../plasma/desktop/shell/main.cpp:120
#34 0x0804850b in main (argc=1, argv=0xbfd3f174) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 291392, bug 291377, bug 291295, bug 291257, bug 291187.

Reported using DrKonqi