Application: plasma-desktop (0.4)
KDE Platform Version: 4.6.3 (4.6.3)
Qt Version: 4.7.2
Operating System: Linux 2.6.38.8-32.fc15.x86_64 x86_64
Distribution (Platform): Fedora RPMs

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

I unchecked "application status" in one systray. unchecked it and rechecked it in other tray before.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Plasma-Desktop-Umgebung (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f22a434e840 (LWP 4139))]

Thread 2 (Thread 0x7f227e816700 (LWP 4235)):
#0  0x00007f22a3f7a475 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x000000337a9849c2 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x337ac7db00) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x000000337a9849f9 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007f22a3f76af1 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f22a3a31b7d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f22a434e840 (LWP 4139)):
[KCrash Handler]
#6  0x00007fffe5515158 in ?? ()
#7  0x0000003369789d6a in QGraphicsLayoutPrivate::activateRecursive (this=0x182f030, item=0x46d09b0) at graphicsview/qgraphicslayout_p.cpp:184
#8  0x0000003369789d44 in QGraphicsLayoutPrivate::activateRecursive (this=0x182f030, item=0x173ed10) at graphicsview/qgraphicslayout_p.cpp:189
#9  0x000000336978982b in QGraphicsLayout::activate (this=0x173ed10) at graphicsview/qgraphicslayout.cpp:261
#10 0x00000033697898e9 in QGraphicsLayout::widgetEvent (this=0x173ed10, e=<optimized out>) at graphicsview/qgraphicslayout.cpp:372
#11 0x00000033697c798a in QGraphicsWidget::event (this=0x182ec50, event=0x4926ac0) at graphicsview/qgraphicswidget.cpp:1347
#12 0x00000033691b73d4 in notify_helper (e=0x4926ac0, receiver=0x182ec50, this=0x124fe40) at kernel/qapplication.cpp:4462
#13 QApplicationPrivate::notify_helper (this=0x124fe40, receiver=0x182ec50, e=0x4926ac0) at kernel/qapplication.cpp:4434
#14 0x00000033691bc261 in QApplication::notify (this=0x12346d0, receiver=0x182ec50, e=0x4926ac0) at kernel/qapplication.cpp:4341
#15 0x0000003371241806 in KApplication::notify (this=0x12346d0, receiver=0x182ec50, event=0x4926ac0) at /usr/src/debug/kdelibs-4.6.3/kdeui/kernel/kapplication.cpp:311
#16 0x0000003368b5a1bc in QCoreApplication::notifyInternal (this=0x12346d0, receiver=0x182ec50, event=0x4926ac0) at kernel/qcoreapplication.cpp:731
#17 0x0000003368b5d784 in sendEvent (event=0x4926ac0, receiver=0x182ec50) at kernel/qcoreapplication.h:215
#18 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x11d5cd0) at kernel/qcoreapplication.cpp:1372
#19 0x0000003368b848c3 in sendPostedEvents () at kernel/qcoreapplication.h:220
#20 postEventSourceDispatch (s=0x1257100) at kernel/qeventdispatcher_glib.cpp:277
#21 0x0000003362e427ed in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#22 0x0000003362e42fc8 in ?? () from /lib64/libglib-2.0.so.0
#23 0x0000003362e4325c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#24 0x0000003368b84d1f in QEventDispatcherGlib::processEvents (this=0x11d77e0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#25 0x0000003369259f2e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:207
#26 0x0000003368b596d2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#27 0x0000003368b598cf in QEventLoop::exec (this=0x7fffe5515bc0, flags=...) at kernel/qeventloop.cpp:201
#28 0x0000003368b5da17 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#29 0x0000003c77a3f1e3 in kdemain (argc=1, argv=0x7fffe5515fa8) at /usr/src/debug/kdebase-workspace-4.6.3/plasma/desktop/shell/main.cpp:120
#30 0x00007f22a397339d in __libc_start_main () from /lib64/libc.so.6
#31 0x00000000004008c1 in _start ()

Possible duplicates by query: bug 276957, bug 275762, bug 274009, bug 273965, bug 271899.

Reported using DrKonqi