Bug 294324

Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.4 (4.7.4) (Compiled from sources)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-15-generic-pae i686
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed: started up my laptop
- Unusual behavior I noticed: when it doesnt crash the main panel on the bottom of the screen doesnt show up but every thing else does. i have to open an app and then minimise it to get the panel to show.

The crash does not seem to be reproducible.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb1fddb20 (LWP 1504))]

Thread 3 (Thread 0xab448b70 (LWP 1520)):
#0  0xb3116d44 in __pthread_mutex_unlock_usercnt () from /lib/i386-linux-gnu/libpthread.so.0
#1  0xb7773f54 in pthread_mutex_unlock () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2ff887f in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2ff9637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2ff9c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb65adb37 in QEventDispatcherGlib::processEvents (this=0x8997840, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0xb657e1dd in QEventLoop::processEvents (this=0xab4482a0, flags=...) at kernel/qeventloop.cpp:149
#7  0xb657e421 in QEventLoop::exec (this=0xab4482a0, flags=...) at kernel/qeventloop.cpp:201
#8  0xb648190b in QThread::exec (this=0x89948d0) at thread/qthread.cpp:498
#9  0xb655ee2d in QInotifyFileSystemWatcherEngine::run (this=0x89948d0) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb64847b3 in QThreadPrivate::start (arg=0x89948d0) at thread/qthread_unix.cpp:331
#11 0xb3113d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0xb77660ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xa992fb70 (LWP 1521)):
#0  0xb30b2d10 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0xb64db7d5 in do_gettime (frac=0xa992f010, sec=0xa992f008) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb65ae4b6 in QTimerInfoList::updateCurrentTime (this=0x8a3a04c) at kernel/qeventdispatcher_unix.cpp:339
#4  0xb65ae80a in QTimerInfoList::timerWait (this=0x8a3a04c, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0xb65ad053 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xa992f11c) at kernel/qeventdispatcher_glib.cpp:136
#6  0xb65ad0ed in timerSourcePrepare (source=0x8a3a018, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0xb2ff888c in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0xb2ff9637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0xb2ff9c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0xb65adb37 in QEventDispatcherGlib::processEvents (this=0x8a3a0c0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0xb657e1dd in QEventLoop::processEvents (this=0xa992f2a0, flags=...) at kernel/qeventloop.cpp:149
#12 0xb657e421 in QEventLoop::exec (this=0xa992f2a0, flags=...) at kernel/qeventloop.cpp:201
#13 0xb648190b in QThread::exec (this=0x8679100) at thread/qthread.cpp:498
#14 0xb655ee2d in QInotifyFileSystemWatcherEngine::run (this=0x8679100) at io/qfilesystemwatcher_inotify.cpp:248
#15 0xb64847b3 in QThreadPrivate::start (arg=0x8679100) at thread/qthread_unix.cpp:331
#16 0xb3113d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#17 0xb77660ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb1fddb20 (LWP 1504)):
[KCrash Handler]
#7  0xb383d423 in ~QExplicitlySharedDataPointer (this=0x8d6ed6c, __in_chrg=<optimized out>) at /usr/include/qt4/QtCore/qshareddata.h:161
#8  Solid::Device::~Device (this=0x8d6ed6c, __in_chrg=<optimized out>) at ../../../solid/solid/device.cpp:87
#9  0xaac3830a in ~QHashNode (this=<optimized out>, __in_chrg=<optimized out>) at /usr/include/qt4/QtCore/qhash.h:216
#10 deleteNode2 (node=<optimized out>) at /usr/include/qt4/QtCore/qhash.h:519
#11 deleteNode (node=<optimized out>, this=0x8bf6044) at /usr/include/qt4/QtCore/qhash.h:507
#12 QHash<QString, Solid::Device>::remove (this=0x8bf6044, akey=<optimized out>) at /usr/include/qt4/QtCore/qhash.h:795
#13 0xaac3846a in remove (akey=..., this=0x8bf6044) at /usr/include/qt4/QtCore/qhash.h:784
#14 HotplugEngine::onDeviceRemoved (this=0x8bf6030, udi=...) at ../../../../../plasma/generic/dataengines/hotplug/hotplugengine.cpp:241
#15 0xaac3ab23 in HotplugEngine::qt_metacall (this=0x8bf6030, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0xbf7fe668) at ./hotplugengine.moc:81
#16 0xb6585b7d in metacall (argv=0xbf7fe668, idx=25, cl=QMetaObject::InvokeMetaMethod, object=0x8bf6030) at kernel/qmetaobject.cpp:237
#17 QMetaObject::metacall (object=0x8bf6030, cl=QMetaObject::InvokeMetaMethod, idx=25, argv=0xbf7fe668) at kernel/qmetaobject.cpp:232
#18 0xb6594a6a in QMetaObject::activate (sender=0x89951f0, m=0xb38f0f98, local_signal_index=1, argv=0xbf7fe668) at kernel/qobject.cpp:3278
#19 0xb383ea65 in Solid::DeviceNotifier::deviceRemoved (this=0x89951f0, _t1=...) at ./devicenotifier.moc:94
#20 0xb383fdb4 in Solid::DeviceManagerPrivate::_k_deviceRemoved (this=0x89951f0, udi=...) at ../../../solid/solid/devicemanager.cpp:207
#21 0xb38405b3 in Solid::DeviceManagerPrivate::qt_metacall (this=0x89951f0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0xbf7fe7e8) at ./devicemanager_p.moc:80
#22 0xb6585b7d in metacall (argv=0xbf7fe7e8, idx=7, cl=QMetaObject::InvokeMetaMethod, object=0x89951f0) at kernel/qmetaobject.cpp:237
#23 QMetaObject::metacall (object=0x89951f0, cl=QMetaObject::InvokeMetaMethod, idx=7, argv=0xbf7fe7e8) at kernel/qmetaobject.cpp:232
#24 0xb6594a6a in QMetaObject::activate (sender=0x8997620, m=0xb38f206c, local_signal_index=1, argv=0xbf7fe7e8) at kernel/qobject.cpp:3278
#25 0xb3855cd5 in Solid::Ifaces::DeviceManager::deviceRemoved (this=0x8997620, _t1=...) at ./ifaces/devicemanager.moc:94
#26 0xb389f548 in slotDeviceRemoved (opath=<optimized out>, this=0x8997620) at ../../../solid/solid/backends/upower/upowermanager.cpp:164
#27 Solid::Backends::UPower::UPowerManager::qt_metacall (this=0x8997620, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0xbf7fea4c) at ./backends/upower/upowermanager.moc:78
#28 0xb6585b7d in metacall (argv=0xbf7fea4c, idx=7, cl=QMetaObject::InvokeMetaMethod, object=0x8997620) at kernel/qmetaobject.cpp:237
#29 QMetaObject::metacall (object=0x8997620, cl=QMetaObject::InvokeMetaMethod, idx=7, argv=0xbf7fea4c) at kernel/qmetaobject.cpp:232
#30 0xb6594a6a in QMetaObject::activate (sender=0x899762c, m=0x89a6f68, local_signal_index=4, argv=0xbf7fea4c) at kernel/qobject.cpp:3278
#31 0xb66ee110 in QDBusInterfacePrivate::metacall (this=0x8997a40, c=QMetaObject::InvokeMetaMethod, id=4, argv=0xbf7fea4c) at qdbusinterface.cpp:278
#32 0xb66d8d87 in QDBusConnectionPrivate::deliverCall (this=0x84d5030, object=0x899762c, msg=..., metaTypes=..., slotIdx=148305496) at qdbusintegrator.cpp:942
#33 0xb66e2c26 in QDBusCallDeliveryEvent::placeMetaCall (this=0x9104960, object=0x899762c) at qdbusintegrator_p.h:103
#34 0xb6597b52 in QObject::event (this=0x899762c, e=0x9104960) at kernel/qobject.cpp:1217
#35 0xb5aaad84 in notify_helper (e=0x9104960, receiver=0x899762c, this=0x83ddcc8) at kernel/qapplication.cpp:4486
#36 QApplicationPrivate::notify_helper (this=0x83ddcc8, receiver=0x899762c, e=0x9104960) at kernel/qapplication.cpp:4458
#37 0xb5ab0133 in QApplication::notify (this=0x9104960, receiver=0x899762c, e=0x9104960) at kernel/qapplication.cpp:3886
#38 0xb6be4971 in KApplication::notify (this=0x83cd6d8, receiver=0x899762c, event=0x9104960) at ../../kdeui/kernel/kapplication.cpp:311
#39 0xb657f19e in QCoreApplication::notifyInternal (this=0x83cd6d8, receiver=0x899762c, event=0x9104960) at kernel/qcoreapplication.cpp:787
#40 0xb6582f93 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#41 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x83882e0) at kernel/qcoreapplication.cpp:1428
#42 0xb65830ec in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1321
#43 0xb65ad6a4 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#44 postEventSourceDispatch (s=0x83df688) at kernel/qeventdispatcher_glib.cpp:277
#45 0xb2ff925f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#46 0xb2ff9990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#47 0xb2ff9c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#48 0xb65adada in QEventDispatcherGlib::processEvents (this=0x8389218, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#49 0xb5b62e7a in QGuiEventDispatcherGlib::processEvents (this=0x8389218, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#50 0xb657e1dd in QEventLoop::processEvents (this=0xbf7ff0e4, flags=...) at kernel/qeventloop.cpp:149
#51 0xb657e421 in QEventLoop::exec (this=0xbf7ff0e4, flags=...) at kernel/qeventloop.cpp:201
#52 0xb658319d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#53 0xb5aa8924 in QApplication::exec () at kernel/qapplication.cpp:3760
#54 0xb785c18b in kdemain (argc=1, argv=0xbf7ff2e4) at ../../../../plasma/desktop/shell/main.cpp:120
#55 0x0804850b in main (argc=1, argv=0xbf7ff2e4) at plasma-desktop_dummy.cpp:3

This bug may be a duplicate of or related to bug 278141.

Possible duplicates by query: bug 294036, bug 291844, bug 291066, bug 290475, bug 290426.

Reported using DrKonqi