Application: plasma-desktop (0.4)
KDE Platform Version: 4.5.66 (KDE 4.5.66 (KDE 4.6 >= 20100825)) (Compiled from sources)
Qt Version: 4.7.0
Operating System: Linux 2.6.34.1-0.1-desktop i686
Distribution: "openSUSE 11.3 (i586)"

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

I just selected "Weather" wallpaper and got this crash. The duplicate says the bug has been fixed, but I can reproduce on todays' trunk.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Aborted
[Current thread is 1 (Thread 0xb577d710 (LWP 31251))]

Thread 4 (Thread 0xab0a5b70 (LWP 31295)):
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb6c48125 in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S:122
#2  0xb42f623a in WTF::TCMalloc_PageHeap::scavengerThread() () from /local/qt4/lib/libQtWebKit.so.4
#3  0xb42f5945 in WTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /local/qt4/lib/libQtWebKit.so.4
#4  0xb6c43b25 in start_thread (arg=0xab0a5b70) at pthread_create.c:297
#5  0xb5db646e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 3 (Thread 0xaa5d1b70 (LWP 31321)):
#0  0xb5951f22 in g_main_context_iterate (context=0x83fc150, block=1, dispatch=1, self=0x83fd0a8) at gmain.c:2571
#1  0xb595260e in IA__g_main_context_iteration (context=0x83fc150, may_block=1) at gmain.c:2654
#2  0xb6e08154 in QEventDispatcherGlib::processEvents (this=0x8409890, flags=...) at /local/git/Qt/qt/src/corelib/kernel/qeventdispatcher_glib.cpp:417
#3  0xb6dd190d in QEventLoop::processEvents (this=0xaa5d1298, flags=...) at /local/git/Qt/qt/src/corelib/kernel/qeventloop.cpp:149
#4  0xb6dd1a51 in QEventLoop::exec (this=0xaa5d1298, flags=...) at /local/git/Qt/qt/src/corelib/kernel/qeventloop.cpp:201
#5  0xb6cc75e0 in QThread::exec (this=0x83fd750) at /local/git/Qt/qt/src/corelib/thread/qthread.cpp:490
#6  0xb6db3514 in QInotifyFileSystemWatcherEngine::run (this=0x83fd750) at /local/git/Qt/qt/src/corelib/io/qfilesystemwatcher_inotify.cpp:248
#7  0xb6cc9c7e in QThreadPrivate::start (arg=0x83fd750) at /local/git/Qt/qt/src/corelib/thread/qthread_unix.cpp:274
#8  0xb6c43b25 in start_thread (arg=0xaa5d1b70) at pthread_create.c:297
#9  0xb5db646e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 2 (Thread 0xa75bfb70 (LWP 12918)):
[KCrash Handler]
#7  0xffffe424 in __kernel_vsyscall ()
#8  0xb5d0e7ff in raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#9  0xb5d10140 in abort () at abort.c:92
#10 0xb6cbf74b in qt_message_output (msgType=QtFatalMsg, buf=
    0x8d49c20 "ASSERT failure in QMutex::unlock(): \"A mutex must be unlocked in the same thread that locked it.\", file /local/git/Qt/qt/src/corelib/thread/qmutex.cpp, line 370")
    at /local/git/Qt/qt/src/corelib/global/qglobal.cpp:2259
#11 0xb6cbf8b6 in qt_message (msgType=QtFatalMsg, msg=0xb6e4a698 "ASSERT failure in %s: \"%s\", file %s, line %d", ap=0xa75bf104 "\020\277\344\266\324\276\344\266\f\276\344\266r\001")
    at /local/git/Qt/qt/src/corelib/global/qglobal.cpp:2305
#12 0xb6cbfce2 in qFatal (msg=0xb6e4a698 "ASSERT failure in %s: \"%s\", file %s, line %d") at /local/git/Qt/qt/src/corelib/global/qglobal.cpp:2488
#13 0xb6cbf332 in qt_assert_x (where=0xb6e4bf10 "QMutex::unlock()", what=0xb6e4bed4 "A mutex must be unlocked in the same thread that locked it.", file=
    0xb6e4be0c "/local/git/Qt/qt/src/corelib/thread/qmutex.cpp", line=370) at /local/git/Qt/qt/src/corelib/global/qglobal.cpp:2012
#14 0xb6cc45f8 in QMutex::unlock (this=0x976065c) at /local/git/Qt/qt/src/corelib/thread/qmutex.cpp:369
#15 0xb6ccadb9 in QWaitCondition::wait (this=0x9760660, mutex=0x976065c, time=4294967295) at /local/git/Qt/qt/src/corelib/thread/qwaitcondition_unix.cpp:158
#16 0xa116de7e in WiFiScan::run (this=0x9760650) at /local/svn/kde/trunk/playground/base/plasma/dataengines/geolocation-wifi/location_wifi.cpp:142
#17 0xb6cc9c7e in QThreadPrivate::start (arg=0x9760650) at /local/git/Qt/qt/src/corelib/thread/qthread_unix.cpp:274
#18 0xb6c43b25 in start_thread (arg=0xa75bfb70) at pthread_create.c:297
#19 0xb5db646e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb577d710 (LWP 31251)):
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb6c4acc9 in __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S:142
#2  0xb6c461d5 in _L_lock_790 () from /lib/libpthread.so.0
#3  0xb6c45ff3 in __pthread_mutex_lock (mutex=0x97fc398) at pthread_mutex_lock.c:61
#4  0xb6ccabe6 in QWaitCondition::wakeOne (this=0x9760660) at /local/git/Qt/qt/src/corelib/thread/qwaitcondition_unix.cpp:133
#5  0xa116d558 in WiFiScan::~WiFiScan (this=0x9760650, __in_chrg=<value optimized out>) at /local/svn/kde/trunk/playground/base/plasma/dataengines/geolocation-wifi/location_wifi.cpp:80
#6  0xa116d5cd in WiFiScan::~WiFiScan (this=0x9760650, __in_chrg=<value optimized out>) at /local/svn/kde/trunk/playground/base/plasma/dataengines/geolocation-wifi/location_wifi.cpp:82
#7  0xa116e1bc in WiFi::~WiFi (this=0x9510f60, __in_chrg=<value optimized out>) at /local/svn/kde/trunk/playground/base/plasma/dataengines/geolocation-wifi/location_wifi.cpp:177
#8  0xa116e223 in WiFi::~WiFi (this=0x9510f60, __in_chrg=<value optimized out>) at /local/svn/kde/trunk/playground/base/plasma/dataengines/geolocation-wifi/location_wifi.cpp:179
#9  0xa1187300 in qDeleteAll<QList<GeolocationProvider*>::const_iterator> (begin=..., end=...) at /local/qt4/include/QtCore/qalgorithms.h:322
#10 0xa11869f7 in qDeleteAll<QList<GeolocationProvider*> > (c=...) at /local/qt4/include/QtCore/qalgorithms.h:330
#11 0xa1185497 in Geolocation::~Geolocation (this=0x88b6c70, __in_chrg=<value optimized out>) at /local/svn/kde/trunk/KDE/kdebase/workspace/plasma/generic/dataengines/geolocation/geolocation.cpp:65
#12 0xa1185515 in Geolocation::~Geolocation (this=0x88b6c70, __in_chrg=<value optimized out>) at /local/svn/kde/trunk/KDE/kdebase/workspace/plasma/generic/dataengines/geolocation/geolocation.cpp:66
#13 0xb4bdecdb in Plasma::DataEngineManagerPrivate::~DataEngineManagerPrivate (this=0x8262720, __in_chrg=<value optimized out>) at /local/svn/kde/trunk/KDE/kdelibs/plasma/dataenginemanager.cpp:55
#14 0xb4bde464 in Plasma::DataEngineManager::~DataEngineManager (this=0x83b5490, __in_chrg=<value optimized out>) at /local/svn/kde/trunk/KDE/kdelibs/plasma/dataenginemanager.cpp:94
#15 0xb4bdee09 in Plasma::DataEngineManagerSingleton::~DataEngineManagerSingleton (this=0x83b5490, __in_chrg=<value optimized out>) at /local/svn/kde/trunk/KDE/kdelibs/plasma/dataenginemanager.cpp:75
#16 0xb4bde39a in destroy () at /local/svn/kde/trunk/KDE/kdelibs/plasma/dataenginemanager.cpp:80
#17 0xb4b83ef9 in KCleanUpGlobalStatic::~KCleanUpGlobalStatic (this=0xb4da8d9c, __in_chrg=<value optimized out>) at /local/svn/kde/trunk/KDE/kdelibs/kdecore/kernel/kglobal.h:62
#18 0xb5d117cf in __run_exit_handlers (status=1, listp=0xb5e4a304, run_list_atexit=true) at exit.c:78
#19 0xb5d1182d in exit (status=1) at exit.c:100
#20 0xb61e52cf in qt_xio_errhandler () at /local/git/Qt/qt/src/gui/kernel/qapplication_x11.cpp:745
#21 0xb7588973 in KApplication::xioErrhandler (this=0x80a06b0, dpy=0x80c1db0) at /local/svn/kde/trunk/KDE/kdelibs/kdeui/kernel/kapplication.cpp:416
#22 0xb7587c66 in kde_xio_errhandler (dpy=0x80c1db0) at /local/svn/kde/trunk/KDE/kdelibs/kdeui/kernel/kapplication.cpp:125
#23 0xb7289504 in _XIOError (dpy=0x80c1db0) at XlibInt.c:3138
#24 0xb72902b8 in process_responses (dpy=0x80c1db0, wait_for_first_event=0, current_error=0x0, current_request=0) at xcb_io.c:247
#25 0xb729070c in _XEventsQueued (dpy=0x80c1db0, mode=2) at xcb_io.c:263
#26 0xb72792e8 in XEventsQueued (dpy=0x80c1db0, mode=2) at Pending.c:44
#27 0xb6227eea in x11EventSourcePrepare (s=0x80ac8b0, timeout=0xbfa59c4c) at /local/git/Qt/qt/src/gui/kernel/qguieventdispatcher_glib.cpp:77
#28 0xb59510c0 in IA__g_main_context_prepare (context=0x80aba98, priority=0xbfa59cbc) at gmain.c:2280
#29 0xb5951f22 in g_main_context_iterate (context=0x80aba98, block=1, dispatch=1, self=0x80a3bf8) at gmain.c:2571
#30 0xb595260e in IA__g_main_context_iteration (context=0x80aba98, may_block=1) at gmain.c:2654
#31 0xb6e08134 in QEventDispatcherGlib::processEvents (this=0x80a8d58, flags=...) at /local/git/Qt/qt/src/corelib/kernel/qeventdispatcher_glib.cpp:415
#32 0xb6228550 in QGuiEventDispatcherGlib::processEvents (this=0x80a8d58, flags=...) at /local/git/Qt/qt/src/gui/kernel/qguieventdispatcher_glib.cpp:204
#33 0xb6dd190d in QEventLoop::processEvents (this=0xbfa59e0c, flags=...) at /local/git/Qt/qt/src/corelib/kernel/qeventloop.cpp:149
#34 0xb6dd1a51 in QEventLoop::exec (this=0xbfa59e0c, flags=...) at /local/git/Qt/qt/src/corelib/kernel/qeventloop.cpp:201
#35 0xb6dd429a in QCoreApplication::exec () at /local/git/Qt/qt/src/corelib/kernel/qcoreapplication.cpp:1009
#36 0xb615f3fa in QApplication::exec () at /local/git/Qt/qt/src/gui/kernel/qapplication.cpp:3675
#37 0xb2ad6d29 in kdemain (argc=1, argv=0x809c2b8) at /local/svn/kde/trunk/KDE/kdebase/workspace/plasma/desktop/shell/main.cpp:118
#38 0x0804dd65 in launch (argc=1, _name=0x807f1c4 "/local/kde4/bin/plasma-desktop", args=0x807f1e3 "", cwd=0x0, envc=0, envs=0x807f1e7 "", reset_env=false, tty=0x0, avoid_loops=false, startup_id_str=
    0x8052fdf "0") at /local/svn/kde/trunk/KDE/kdelibs/kinit/kinit.cpp:727
#39 0x0804edfa in handle_launcher_request (sock=8, who=0x8053278 "launcher") at /local/svn/kde/trunk/KDE/kdelibs/kinit/kinit.cpp:1219
#40 0x0804f53b in handle_requests (waitForPid=0) at /local/svn/kde/trunk/KDE/kdelibs/kinit/kinit.cpp:1412
#41 0x08050e35 in main (argc=4, argv=0xbfa5a5b4, envp=0xbfa5a5c8) at /local/svn/kde/trunk/KDE/kdelibs/kinit/kinit.cpp:1898

This bug may be a duplicate of or related to bug 218780.

Possible duplicates by query: bug 229841, bug 221466, bug 218780.

Reported using DrKonqi