Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-13-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:
Shutting down the system, a 30 seconds counter appeared. Clicked on de button for inmediaate shutdown and, a few seconds later, program crashed.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Shell de escritorio Plasma (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fea6c0117a0 (LWP 2184))]

Thread 3 (Thread 0x7fea485d3700 (LWP 2185)):
#0  0x00007fff86fff92c in clock_gettime ()
#1  0x00007fea6013707b in __GI_clock_gettime (clock_id=1, tp=0x7fea485d2b20) at ../sysdeps/unix/clock_gettime.c:100
#2  0x00007fea68a27074 in do_gettime (frac=0x7fea485d2b38, sec=0x7fea485d2b30) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007fea68ae96ed in QTimerInfoList::updateCurrentTime (this=0x1fb1e60) at kernel/qeventdispatcher_unix.cpp:339
#5  0x00007fea68ae9a33 in QTimerInfoList::timerWait (this=0x1fb1e60, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#6  0x00007fea68ae844c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7fea485d2c1c) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00007fea68ae84f5 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#8  0x00007fea5fe80ff2 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007fea5fe81dfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007fea5fe82429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007fea68ae8f3e in QEventDispatcherGlib::processEvents (this=0x1f93590, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#12 0x00007fea68abccf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#13 0x00007fea68abcef7 in QEventLoop::exec (this=0x7fea485d2db0, flags=...) at kernel/qeventloop.cpp:201
#14 0x00007fea689d427f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#15 0x00007fea68a9fcbf in QInotifyFileSystemWatcherEngine::run (this=0x1f938d0) at io/qfilesystemwatcher_inotify.cpp:248
#16 0x00007fea689d6d05 in QThreadPrivate::start (arg=0x1f938d0) at thread/qthread_unix.cpp:331
#17 0x00007fea6098eefc in start_thread (arg=0x7fea485d3700) at pthread_create.c:304
#18 0x00007fea6b90289d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#19 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fea45bf9700 (LWP 2186)):
#0  0x00007fff86fff92c in clock_gettime ()
#1  0x00007fea6013707b in __GI_clock_gettime (clock_id=1, tp=0x7fea45bf8b20) at ../sysdeps/unix/clock_gettime.c:100
#2  0x00007fea68a27074 in do_gettime (frac=0x7fea45bf8b38, sec=0x7fea45bf8b30) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007fea68ae96ed in QTimerInfoList::updateCurrentTime (this=0x7fea40001cd0) at kernel/qeventdispatcher_unix.cpp:339
#5  0x00007fea68ae9a33 in QTimerInfoList::timerWait (this=0x7fea40001cd0, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#6  0x00007fea68ae844c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7fea45bf8c1c) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00007fea68ae84f5 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#8  0x00007fea5fe80ff2 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007fea5fe81dfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007fea5fe82429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007fea68ae8f3e in QEventDispatcherGlib::processEvents (this=0x2144600, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#12 0x00007fea68abccf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#13 0x00007fea68abcef7 in QEventLoop::exec (this=0x7fea45bf8db0, flags=...) at kernel/qeventloop.cpp:201
#14 0x00007fea689d427f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#15 0x00007fea68a9fcbf in QInotifyFileSystemWatcherEngine::run (this=0x21439e0) at io/qfilesystemwatcher_inotify.cpp:248
#16 0x00007fea689d6d05 in QThreadPrivate::start (arg=0x21439e0) at thread/qthread_unix.cpp:331
#17 0x00007fea6098eefc in start_thread (arg=0x7fea45bf9700) at pthread_create.c:304
#18 0x00007fea6b90289d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#19 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fea6c0117a0 (LWP 2184)):
[KCrash Handler]
#6  0x000000000160bab8 in ?? ()
#7  0x00007fea51d7ab96 in TaskGroupItem::~TaskGroupItem (this=0x35eb020, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:82
#8  0x00007fea51d7ac49 in TaskGroupItem::~TaskGroupItem (this=0x35eb020, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:83
#9  0x00007fea68ad4a88 in QObject::event (this=0x35eb020, e=<optimized out>) at kernel/qobject.cpp:1200
#10 0x00007fea6848c89b in QGraphicsWidget::event (this=0x35eb020, event=0x1fbf810) at graphicsview/qgraphicswidget.cpp:1455
#11 0x00007fea67e6e424 in notify_helper (e=0x1fbf810, receiver=0x35eb020, this=0x1492680) at kernel/qapplication.cpp:4486
#12 QApplicationPrivate::notify_helper (this=0x1492680, receiver=0x35eb020, e=0x1fbf810) at kernel/qapplication.cpp:4458
#13 0x00007fea67e73291 in QApplication::notify (this=0x1481630, receiver=0x35eb020, e=0x1fbf810) at kernel/qapplication.cpp:4365
#14 0x00007fea6976c126 in KApplication::notify (this=0x1481630, receiver=0x35eb020, event=0x1fbf810) at ../../kdeui/kernel/kapplication.cpp:311
#15 0x00007fea68abdafc in QCoreApplication::notifyInternal (this=0x1481630, receiver=0x35eb020, event=0x1fbf810) at kernel/qcoreapplication.cpp:787
#16 0x00007fea68ac151f in sendEvent (event=0x1fbf810, receiver=0x35eb020) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#17 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x1410430) at kernel/qcoreapplication.cpp:1428
#18 0x00007fea68ac17c4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1071
#19 0x00007fea6bc011a3 in kdemain (argc=1, argv=0x7fff86fe4bd8) at ../../../../plasma/desktop/shell/main.cpp:120
#20 0x00007fea6b84230d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff86fe4bd8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff86fe4bc8) at libc-start.c:226
#21 0x0000000000400671 in _start ()

Possible duplicates by query: bug 288672, bug 288574, bug 288129, bug 287962, bug 287956.

Reported using DrKonqi