Bug 285905

Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.3 (4.7.3) (Compiled from sources)
Qt Version: 4.7.4
Operating System: Linux 3.0.3-fc15-aufs-x86_64 x86_64
Distribution (Platform): Gentoo Packages

-- Information about the crash:
I was opening qtcreator while konqui presented me the crash window

commit 0cb92a3a631c25086195c6145e84ea0fe05e9099
Date:   Sat Nov 5 16:33:32 2011 +0000

-- Backtrace:
Application: Plasma Desktop Shell (kdeinit4), signal: Segmentation fault
82	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f8a02bdc780 (LWP 14908))]

Thread 3 (Thread 0x7f89de6b4700 (LWP 14971)):
#0  0x00007f8a0118ab7f in __pthread_mutex_unlock_usercnt (mutex=0x1322aa8, decr=0) at pthread_mutex_unlock.c:52
#1  0x00007f89fbfdfcba in g_main_context_iterate (context=0x1322aa0, block=<optimized out>, dispatch=1, self=<optimized out>) at gmain.c:3076
#2  0x00007f89fbfe0149 in g_main_context_iteration (context=0x1322aa0, may_block=1) at gmain.c:3136
#3  0x00007f8a0153f666 in QEventDispatcherGlib::processEvents (this=0x13326f0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f8a0150f7d2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f8a0150f9cf in QEventLoop::exec (this=0x7f89de6b3dc0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f8a01418309 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f8a014f0033 in QInotifyFileSystemWatcherEngine::run (this=0x131dae0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f8a0141b20a in QThreadPrivate::start (arg=0x131dae0) at thread/qthread_unix.cpp:331
#9  0x00007f8a01187bb0 in start_thread (arg=0x7f89de6b4700) at pthread_create.c:301
#10 0x00007f89ff78128d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 2 (Thread 0x7f89ddea3700 (LWP 14990)):
#0  pthread_cond_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f89f4a6af32 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7f89f4d68f40) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007f89f4a6af69 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007f8a01187bb0 in start_thread (arg=0x7f89ddea3700) at pthread_create.c:301
#4  0x00007f89ff78128d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7f8a02bdc780 (LWP 14908)):
[KCrash Handler]
#6  0x00007f89e496173f in TaskGroupItem::checkUpdates (this=0x2329520) at /usr/src/debug/kde-base/plasma-workspace-9999/plasma-workspace-9999/plasma/desktop/applets/tasks/taskgroupitem.cpp:230
#7  0x00007f89e4964ad2 in TaskGroupItem::qt_metacall (this=0x2329520, _c=QMetaObject::InvokeMetaMethod, _id=12, _a=0x7ffff2fe93e0) at /usr/src/debug/kde-base/plasma-workspace-9999/plasma-workspace-9999_build/plasma/desktop/applets/tasks/taskgroupitem.moc:123
#8  0x00007f8a015257b0 in QMetaObject::activate (sender=0x1d8e860, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3278
#9  0x00007f8a0152a3a9 in QObject::event (this=0x1d8e860, e=<optimized out>) at kernel/qobject.cpp:1181
#10 0x00007f8a00602962 in notify_helper (e=0x7ffff2fe9b30, receiver=0x1d8e860, this=0xc61be0) at kernel/qapplication.cpp:4481
#11 QApplicationPrivate::notify_helper (this=0xc61be0, receiver=0x1d8e860, e=0x7ffff2fe9b30) at kernel/qapplication.cpp:4453
#12 0x00007f8a006084e9 in QApplication::notify (this=0xc41a60, receiver=0x1d8e860, e=0x7ffff2fe9b30) at kernel/qapplication.cpp:4360
#13 0x00007f8a0256997d in KApplication::notify (this=0xc41a60, receiver=0x1d8e860, event=0x7ffff2fe9b30) at /usr/src/debug/kde-base/kdelibs-4.7.49.9999/kdelibs-4.7.49.9999/kdeui/kernel/kapplication.cpp:311
#14 0x00007f8a01510eec in QCoreApplication::notifyInternal (this=0xc41a60, receiver=0x1d8e860, event=0x7ffff2fe9b30) at kernel/qcoreapplication.cpp:787
#15 0x00007f8a01541b72 in sendEvent (event=0x7ffff2fe9b30, receiver=<optimized out>) at kernel/qcoreapplication.h:215
#16 QTimerInfoList::activateTimers (this=0xc64060) at kernel/qeventdispatcher_unix.cpp:603
#17 0x00007f8a0153ebf8 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#18 idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:231
#19 0x00007f89fbfdf77d in g_main_dispatch (context=0xc61810) at gmain.c:2425
#20 g_main_context_dispatch (context=0xc61810) at gmain.c:2995
#21 0x00007f89fbfdff78 in g_main_context_iterate (context=0xc61810, block=<optimized out>, dispatch=1, self=<optimized out>) at gmain.c:3073
#22 0x00007f89fbfe0149 in g_main_context_iteration (context=0xc61810, may_block=1) at gmain.c:3136
#23 0x00007f8a0153f5ff in QEventDispatcherGlib::processEvents (this=0xc61770, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#24 0x00007f8a006b2c1e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#25 0x00007f8a0150f7d2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#26 0x00007f8a0150f9cf in QEventLoop::exec (this=0x7ffff2fe9dd0, flags=...) at kernel/qeventloop.cpp:201
#27 0x00007f8a01514e17 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#28 0x00007f89ee7f1a55 in kdemain (argc=1, argv=0xbd3a00) at /usr/src/debug/kde-base/plasma-workspace-9999/plasma-workspace-9999/plasma/desktop/shell/main.cpp:120
#29 0x00000000004081b3 in launch (argc=1, _name=0xb865d8 "/usr/bin/plasma-desktop", args=<optimized out>, cwd=0x0, envc=<optimized out>, envs=<optimized out>, reset_env=false, tty=0x0, avoid_loops=false, startup_id_str=0x40c1a1 "0") at /usr/src/debug/kde-base/kdelibs-4.7.49.9999/kdelibs-4.7.49.9999/kinit/kinit.cpp:734
#30 0x0000000000408fec in handle_launcher_request (sock=7, who=<optimized out>) at /usr/src/debug/kde-base/kdelibs-4.7.49.9999/kdelibs-4.7.49.9999/kinit/kinit.cpp:1226
#31 0x00000000004094ec in handle_requests (waitForPid=0) at /usr/src/debug/kde-base/kdelibs-4.7.49.9999/kdelibs-4.7.49.9999/kinit/kinit.cpp:1419
#32 0x000000000040524d in main (argc=2, argv=0x7ffff2feab68, envp=0x7ffff2feab80) at /usr/src/debug/kde-base/kdelibs-4.7.49.9999/kdelibs-4.7.49.9999/kinit/kinit.cpp:1907

Reported using DrKonqi