Bug 325479

Application: plasma-desktop (4.11.1)
KDE Platform Version: 4.11.1
Qt Version: 4.8.5
Operating System: Linux 3.10.5-201.fc19.x86_64 x86_64
Distribution: "Fedora release 19 (Schrödinger’s Cat)"

-- Information about the crash:
- What I was doing when the application crashed:
Had dragged (reordered) icons on taskbar, then removed the shortcut icon it created.
- Unusual behavior I noticed:
Reordering icons on taskbar now always creates shortcut icons for that application on the taskbar.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Floating point exception
Using host libthread_db library "/lib64/libthread_db.so.1".
81	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7fb83b0e48c0 (LWP 4839))]

Thread 3 (Thread 0x7fb81114f700 (LWP 4847)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb83a76b0bb in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7fb83aa68f00 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007fb83a76b0f9 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007fb834bfdc53 in start_thread (arg=0x7fb81114f700) at pthread_create.c:308
#4  0x00007fb833467e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7fb782971700 (LWP 4850)):
#0  0x00007fb83345d84d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fb82ad6d0f4 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7fb7740029b0, timeout=-1, context=0x7fb7740009a0) at gmain.c:3995
#2  g_main_context_iterate (context=context@entry=0x7fb7740009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3696
#3  0x00007fb82ad6d1fc in g_main_context_iteration (context=0x7fb7740009a0, may_block=1) at gmain.c:3762
#4  0x00007fb834fb9166 in QEventDispatcherGlib::processEvents (this=0x7fb7740008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:427
#5  0x00007fb834f8aecf in QEventLoop::processEvents (this=this@entry=0x7fb782970ce0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fb834f8b1c5 in QEventLoop::exec (this=this@entry=0x7fb782970ce0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fb834e8a66f in QThread::exec (this=this@entry=0x294ac00) at thread/qthread.cpp:536
#8  0x00007fb834f6c733 in QInotifyFileSystemWatcherEngine::run (this=0x294ac00) at io/qfilesystemwatcher_inotify.cpp:256
#9  0x00007fb834e8cd0f in QThreadPrivate::start (arg=0x294ac00) at thread/qthread_unix.cpp:338
#10 0x00007fb834bfdc53 in start_thread (arg=0x7fb782971700) at pthread_create.c:308
#11 0x00007fb833467e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7fb83b0e48c0 (LWP 4839)):
[KCrash Handler]
#6  Image::nextSlide (this=0x1ec7450) at /usr/src/debug/kde-workspace-4.11.1/plasma/generic/wallpapers/image/image.cpp:774
#7  0x00007fb811581085 in Image::qt_static_metacall (_o=0x1ec7450, _id=2, _a=0x0, _c=<optimized out>) at /usr/src/debug/kde-workspace-4.11.1/x86_64-redhat-linux-gnu/plasma/generic/wallpapers/image/image.moc:122
#8  0x00007fb834f9ff78 in QMetaObject::activate (sender=0x1ec7608, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#9  0x00007fb834fa4141 in QObject::event (this=0x1ec7608, e=<optimized out>) at kernel/qobject.cpp:1156
#10 0x00007fb8341174dc in QApplicationPrivate::notify_helper (this=this@entry=0x1979800, receiver=receiver@entry=0x1ec7608, e=e@entry=0x7fff490b82b0) at kernel/qapplication.cpp:4562
#11 0x00007fb83411daa0 in QApplication::notify (this=this@entry=0x1961360, receiver=receiver@entry=0x1ec7608, e=e@entry=0x7fff490b82b0) at kernel/qapplication.cpp:4348
#12 0x00007fb835ed9d2a in KApplication::notify (this=0x1961360, receiver=0x1ec7608, event=0x7fff490b82b0) at /usr/src/debug/kdelibs-4.11.1/kdeui/kernel/kapplication.cpp:311
#13 0x00007fb834f8c26d in QCoreApplication::notifyInternal (this=0x1961360, receiver=0x1ec7608, event=0x7fff490b82b0) at kernel/qcoreapplication.cpp:949
#14 0x00007fb834fbbc13 in sendEvent (event=<optimized out>, receiver=<optimized out>) at kernel/qcoreapplication.h:231
#15 QTimerInfoList::activateTimers (this=0x197a080) at kernel/qeventdispatcher_unix.cpp:621
#16 0x00007fb834fb8f49 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:186
#17 idleTimerSourceDispatch (source=source@entry=0x197a0d0) at kernel/qeventdispatcher_glib.cpp:233
#18 0x00007fb82ad6ce06 in g_main_dispatch (context=0x1979600) at gmain.c:3054
#19 g_main_context_dispatch (context=context@entry=0x1979600) at gmain.c:3630
#20 0x00007fb82ad6d158 in g_main_context_iterate (context=context@entry=0x1979600, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3701
#21 0x00007fb82ad6d1fc in g_main_context_iteration (context=0x1979600, may_block=1) at gmain.c:3762
#22 0x00007fb834fb9145 in QEventDispatcherGlib::processEvents (this=0x1979570, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#23 0x00007fb8341b3fc6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:207
#24 0x00007fb834f8aecf in QEventLoop::processEvents (this=this@entry=0x7fff490b8530, flags=...) at kernel/qeventloop.cpp:149
#25 0x00007fb834f8b1c5 in QEventLoop::exec (this=this@entry=0x7fff490b8530, flags=...) at kernel/qeventloop.cpp:204
#26 0x00007fb834f9045b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1221
#27 0x00007fb834115c9c in QApplication::exec () at kernel/qapplication.cpp:3823
#28 0x00007fb83ad0b40c in kdemain (argc=1, argv=0x7fff490b8788) at /usr/src/debug/kde-workspace-4.11.1/plasma/desktop/shell/main.cpp:126
#29 0x00007fb833393b75 in __libc_start_main (main=0x400940 <main(int, char**)>, argc=1, ubp_av=0x7fff490b8788, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff490b8778) at libc-start.c:274
#30 0x0000000000400971 in _start ()

Possible duplicates by query: bug 325410, bug 325255, bug 323901, bug 319341.

Reported using DrKonqi