Bug 275891

Application: plasma-desktop (0.4)
KDE Platform Version: 4.6.2 (4.6.2)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-8-generic i686
Distribution: Ubuntu 11.04

-- Information about the crash:
- What I was doing when the application crashed:
1. Start the laptop
2. Load Kubuntu 11.04
3. Install a 3G modem device
4. Use it for a while
5. Close the case of the laptop
6. Reopen it.

By reopening it can occur two bad behaviours: the system is partially freezed (no buton or option can be used and the only active element are those on background) or a crash announcement will be displayed.
Note that the kubuntu is fresh installed and it has no customisation made.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb77d6ad0 (LWP 1419))]

Thread 4 (Thread 0xaf9ffb70 (LWP 1423)):
#0  0x02f17382 in pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
#1  0x001ee616 in pthread_mutex_lock () from /lib/i386-linux-gnu/libc.so.6
#2  0x02fef080 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x02fef524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x06ffe577 in QEventDispatcherGlib::processEvents (this=0x89e7c10, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x06fd0289 in QEventLoop::processEvents (this=0xaf9ff280, flags=...) at kernel/qeventloop.cpp:149
#6  0x06fd0522 in QEventLoop::exec (this=0xaf9ff280, flags=...) at kernel/qeventloop.cpp:201
#7  0x06eda2a0 in QThread::exec (this=0x89e4580) at thread/qthread.cpp:492
#8  0x06fb1fdb in QInotifyFileSystemWatcherEngine::run (this=0x89e4580) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x06edcda2 in QThreadPrivate::start (arg=0x89e4580) at thread/qthread_unix.cpp:320
#10 0x02f14e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#11 0x001e073e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 3 (Thread 0xae3bdb70 (LWP 1424)):
#0  0x02f18760 in __pthread_mutex_unlock_usercnt () from /lib/i386-linux-gnu/libpthread.so.0
#1  0x001ee656 in pthread_mutex_unlock () from /lib/i386-linux-gnu/libc.so.6
#2  0x02fee712 in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x02fef03a in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x02fef524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x06ffe577 in QEventDispatcherGlib::processEvents (this=0x8a53178, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x06fd0289 in QEventLoop::processEvents (this=0xae3bd280, flags=...) at kernel/qeventloop.cpp:149
#7  0x06fd0522 in QEventLoop::exec (this=0xae3bd280, flags=...) at kernel/qeventloop.cpp:201
#8  0x06eda2a0 in QThread::exec (this=0x8a544b0) at thread/qthread.cpp:492
#9  0x06fb1fdb in QInotifyFileSystemWatcherEngine::run (this=0x8a544b0) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x06edcda2 in QThreadPrivate::start (arg=0x8a544b0) at thread/qthread_unix.cpp:320
#11 0x02f14e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x001e073e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xacbbab70 (LWP 1430)):
#0  0x007c1416 in __kernel_vsyscall ()
#1  0x001d1f76 in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0x02fff84b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x02fef1af in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x02fef92b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x06217304 in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0x030182df in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0x02f14e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0x001e073e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb77d6ad0 (LWP 1419)):
[KCrash Handler]
#7  QCoreApplication::postEvent (receiver=0x92c4fac, event=0x8db36b8, priority=0) at kernel/qcoreapplication.cpp:1132
#8  0x06fd44cc in QCoreApplication::postEvent (receiver=0x92c4fac, event=0x8db36b8) at kernel/qcoreapplication.cpp:1093
#9  0x00745092 in postEventToThread (this=0x84c50d8, hook=..., msg=...) at qdbusintegrator.cpp:2387
#10 QDBusConnectionPrivate::activateSignal (this=0x84c50d8, hook=..., msg=...) at qdbusintegrator.cpp:766
#11 0x00745419 in QDBusConnectionPrivate::handleSignal (this=0x84c50d8, key=..., msg=...) at qdbusintegrator.cpp:1573
#12 0x00745661 in QDBusConnectionPrivate::handleSignal (this=0x84c50d8, msg=...) at qdbusintegrator.cpp:1592
#13 0x0074705f in QDBusConnectionPrivate::handleMessage (this=0x84c50d8, amsg=...) at qdbusintegrator.cpp:560
#14 0x0074b33e in qDBusSignalFilter (connection=0x84c5840, message=0x92a6848, data=0x84c50d8) at qdbusintegrator.cpp:541
#15 0x02f7f3ab in dbus_connection_dispatch () from /lib/i386-linux-gnu/libdbus-1.so.3
#16 0x0073d92b in q_dbus_connection_dispatch (this=0x84c50d8) at qdbus_symbols_p.h:115
#17 QDBusConnectionPrivate::doDispatch (this=0x84c50d8) at qdbusintegrator.cpp:1125
#18 0x0073ff25 in QDBusConnectionPrivate::socketRead (this=0x84c50d8, fd=10) at qdbusintegrator.cpp:1145
#19 0x007830bf in QDBusConnectionPrivate::qt_metacall (this=0x84c50d8, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0xbfb14778) at .moc/release-shared/moc_qdbusconnection_p.cpp:99
#20 0x06fd76ba in QMetaObject::metacall (object=0x84c50d8, cl=QMetaObject::InvokeMetaMethod, idx=8, argv=0xbfb14778) at kernel/qmetaobject.cpp:237
#21 0x06fe74ff in QMetaObject::activate (sender=0x84c7b40, m=0x710c550, local_signal_index=0, argv=0xbfb14778) at kernel/qobject.cpp:3287
#22 0x07034183 in QSocketNotifier::activated (this=0x84c7b40, _t1=10) at .moc/release-shared/moc_qsocketnotifier.cpp:89
#23 0x06fecfb7 in QSocketNotifier::event (this=0x84c7b40, e=0xbfb14bf4) at kernel/qsocketnotifier.cpp:317
#24 0x046e4d24 in QApplicationPrivate::notify_helper (this=0x8451300, receiver=0x84c7b40, e=0xbfb14bf4) at kernel/qapplication.cpp:4462
#25 0x046e98ce in QApplication::notify (this=0x8446a30, receiver=0x84c7b40, e=0xbfb14bf4) at kernel/qapplication.cpp:3862
#26 0x0118a3ca in KApplication::notify (this=0x8446a30, receiver=0x84c7b40, event=0xbfb14bf4) at ../../kdeui/kernel/kapplication.cpp:311
#27 0x06fd10bb in QCoreApplication::notifyInternal (this=0x8446a30, receiver=0x84c7b40, event=0xbfb14bf4) at kernel/qcoreapplication.cpp:731
#28 0x06ffdec7 in sendEvent (source=0x8454020) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#29 socketNotifierSourceDispatch (source=0x8454020) at kernel/qeventdispatcher_glib.cpp:110
#30 0x02feeaa8 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#31 0x02fef270 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#32 0x02fef524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#33 0x06ffe53c in QEventDispatcherGlib::processEvents (this=0x83faaa8, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#34 0x04798775 in QGuiEventDispatcherGlib::processEvents (this=0x83faaa8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#35 0x06fd0289 in QEventLoop::processEvents (this=0xbfb14e64, flags=...) at kernel/qeventloop.cpp:149
#36 0x06fd0522 in QEventLoop::exec (this=0xbfb14e64, flags=...) at kernel/qeventloop.cpp:201
#37 0x06fd4ecc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#38 0x046e28e7 in QApplication::exec () at kernel/qapplication.cpp:3736
#39 0x00f705a5 in kdemain (argc=1, argv=0xbfb15074) at ../../../../plasma/desktop/shell/main.cpp:118
#40 0x080485cb in main (argc=1, argv=0xbfb15074) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 274219, bug 274217, bug 269396.

Reported using DrKonqi