Bug 286181

Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.1 (4.7.1) (Compiled from sources)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-12-generic i686
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed: Right click on the screen and then choose Add Panel and next Default panel and everytime I repeat just crashed and again, and again....

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb76fbb20 (LWP 4817))]

Thread 5 (Thread 0xb6936b70 (LWP 4818)):
#0  0x00ca3416 in __kernel_vsyscall ()
#1  0x060a7a5c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x006a9cfc in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x031ad9a9 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#4  0x031ad9ef in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#5  0x060a3d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0x0069c0ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 4 (Thread 0xb4cd7b70 (LWP 4819)):
#0  0x03673c30 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0x014ebb37 in QEventDispatcherGlib::processEvents (this=0x85a1f58, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#2  0x014bc1dd in QEventLoop::processEvents (this=0xb4cd72a0, flags=...) at kernel/qeventloop.cpp:149
#3  0x014bc421 in QEventLoop::exec (this=0xb4cd72a0, flags=...) at kernel/qeventloop.cpp:201
#4  0x013bf90b in QThread::exec (this=0x8230128) at thread/qthread.cpp:498
#5  0x0149ce2d in QInotifyFileSystemWatcherEngine::run (this=0x8230128) at io/qfilesystemwatcher_inotify.cpp:248
#6  0x013c27b3 in QThreadPrivate::start (arg=0x8230128) at thread/qthread_unix.cpp:331
#7  0x060a3d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0x0069c0ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 3 (Thread 0xb42ffb70 (LWP 4820)):
#0  0x060a6d50 in __pthread_mutex_unlock_usercnt () from /lib/i386-linux-gnu/libpthread.so.0
#1  0x006a9f54 in pthread_mutex_unlock () from /lib/i386-linux-gnu/libc.so.6
#2  0x0367287f in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x03673637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x03673c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x014ebb37 in QEventDispatcherGlib::processEvents (this=0x8628980, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x014bc1dd in QEventLoop::processEvents (this=0xb42ff2a0, flags=...) at kernel/qeventloop.cpp:149
#7  0x014bc421 in QEventLoop::exec (this=0xb42ff2a0, flags=...) at kernel/qeventloop.cpp:201
#8  0x013bf90b in QThread::exec (this=0x8625d88) at thread/qthread.cpp:498
#9  0x0149ce2d in QInotifyFileSystemWatcherEngine::run (this=0x8625d88) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x013c27b3 in QThreadPrivate::start (arg=0x8625d88) at thread/qthread_unix.cpp:331
#11 0x060a3d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x0069c0ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xad6e2b70 (LWP 4823)):
#0  0x00ca3416 in __kernel_vsyscall ()
#1  0x0068d40e in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0x0368234b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x03673896 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x03673f9b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x05bb0cea in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0x0369a5f4 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0x060a3d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0x0069c0ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb76fbb20 (LWP 4817)):
[KCrash Handler]
#7  0x057fe154 in QGraphicsLayoutItem::graphicsItem (this=0x1) at graphicsview/qgraphicslayoutitem.cpp:920
#8  0x057fe225 in QGraphicsLayoutItemPrivate::hasHeightForWidth (this=0x9e24b40) at graphicsview/qgraphicslayoutitem.cpp:286
#9  0x0584a458 in QGridLayoutItem::hasDynamicConstraint (this=0x9b05da0) at graphicsview/qgridlayoutengine.cpp:576
#10 0x0584b44e in ensureDynamicConstraint (this=0x9754fc0) at graphicsview/qgridlayoutengine.cpp:1657
#11 QGridLayoutEngine::ensureDynamicConstraint (this=0x9754fc0) at graphicsview/qgridlayoutengine.cpp:1652
#12 0x0584b4f0 in QGridLayoutEngine::hasDynamicConstraint (this=0x9754fc0) at graphicsview/qgridlayoutengine.cpp:1677
#13 0x0584f942 in QGridLayoutEngine::sizeHint (this=0x9754fc0, styleInfo=..., which=Qt::MaximumSize, constraint=...) at graphicsview/qgridlayoutengine.cpp:1134
#14 0x057d042f in QGraphicsGridLayout::sizeHint (this=0x94d32e8, which=Qt::MaximumSize, constraint=...) at graphicsview/qgraphicsgridlayout.cpp:656
#15 0x057fd365 in QGraphicsLayoutItemPrivate::effectiveSizeHints (this=0x9754ed0, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:169
#16 0x057fdd54 in effectiveSizeHint (constraint=..., which=Qt::MaximumSize, this=<optimized out>) at graphicsview/qgraphicslayoutitem.cpp:818
#17 QGraphicsLayoutItem::effectiveSizeHint (this=0x94d32e8, which=Qt::MaximumSize, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:810
#18 0x057fde0f in QGraphicsLayoutItem::setGeometry (this=0x94d32e8, rect=...) at graphicsview/qgraphicslayoutitem.cpp:726
#19 0x057d04d9 in QGraphicsGridLayout::setGeometry (this=0x94d32e8, rect=...) at graphicsview/qgraphicsgridlayout.cpp:627
#20 0x057fc7b7 in QGraphicsLayout::activate (this=0x94d32e8) at graphicsview/qgraphicslayout.cpp:272
#21 0x057fc844 in QGraphicsLayout::widgetEvent (this=0x94d32e8, e=0x9e21c08) at graphicsview/qgraphicslayout.cpp:389
#22 0x05840b9f in QGraphicsWidget::event (this=0x950a6e8, event=0x9e21c08) at graphicsview/qgraphicswidget.cpp:1379
#23 0x05181d54 in notify_helper (e=0x9e21c08, receiver=0x950a6e8, this=0x8200f00) at kernel/qapplication.cpp:4486
#24 QApplicationPrivate::notify_helper (this=0x8200f00, receiver=0x950a6e8, e=0x9e21c08) at kernel/qapplication.cpp:4458
#25 0x05187103 in QApplication::notify (this=0x9e21c08, receiver=0x950a6e8, e=0x9e21c08) at kernel/qapplication.cpp:3886
#26 0x01105721 in KApplication::notify (this=0x81f6820, receiver=0x950a6e8, event=0x9e21c08) at ../../kdeui/kernel/kapplication.cpp:311
#27 0x014bd19e in QCoreApplication::notifyInternal (this=0x81f6820, receiver=0x950a6e8, event=0x9e21c08) at kernel/qcoreapplication.cpp:787
#28 0x014c0f93 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#29 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x81b82e0) at kernel/qcoreapplication.cpp:1428
#30 0x014c10ec in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1321
#31 0x014eb6a4 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#32 postEventSourceDispatch (s=0x82032c0) at kernel/qeventdispatcher_glib.cpp:277
#33 0x0367325f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#34 0x03673990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#35 0x03673c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#36 0x014ebada in QEventDispatcherGlib::processEvents (this=0x81b9218, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#37 0x05239e3a in QGuiEventDispatcherGlib::processEvents (this=0x81b9218, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#38 0x014bc1dd in QEventLoop::processEvents (this=0xbfeae7e4, flags=...) at kernel/qeventloop.cpp:149
#39 0x014bc421 in QEventLoop::exec (this=0xbfeae7e4, flags=...) at kernel/qeventloop.cpp:201
#40 0x014c119d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#41 0x0517f8f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#42 0x0026018b in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#43 0x0804850b in ?? ()
#44 0x005e3113 in __libc_start_main () from /lib/i386-linux-gnu/libc.so.6
#45 0x08048531 in _start ()

Possible duplicates by query: bug 285926, bug 285494, bug 285361, bug 284758, bug 284253.

Reported using DrKonqi