Bug 348751

Application: ksysguard (5.3.0)

Qt Version: 5.4.1
Operating System: Linux 4.0.4-301.fc22.x86_64 x86_64
Distribution: "Fedora release 22 (Twenty Two)"

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

I was preparing to restart my system and shut down my applications from the task bar.  The system control monitor gave me a segfault instead of a clean exit.  The exact same thing happened to Konsole as well.

-- Backtrace:
Application: System Monitor (ksysguard), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ff62b1a7900 (LWP 24600))]

Thread 2 (Thread 0x7ff60358d700 (LWP 24633)):
#0  0x00007ff622a4466d in poll () at /lib64/libc.so.6
#1  0x00007ff61ca12182 in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007ff61ca13d07 in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007ff605c765e9 in QXcbEventReader::run() () at /usr/lib64/qt5/plugins/platforms/libqxcb.so
#4  0x00007ff62364eede in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007ff61dc8a555 in start_thread () at /lib64/libpthread.so.0
#6  0x00007ff622a4ff3d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7ff62b1a7900 (LWP 24600)):
[KCrash Handler]
#5  0x00007ff6236df388 in operator==(QString const&, QString const&) () at /lib64/libQt5Core.so.5
#6  0x00007ff624630747 in QLabel::setText(QString const&) () at /lib64/libQt5Widgets.so.5
#7  0x00007ff62ae1b389 in TopLevel::answerReceived(int, QList<QByteArray> const&) () at /lib64/libkdeinit5_ksysguard.so
#8  0x00007ff62a468204 in KSGRD::SensorAgent::processAnswer(char const*, int) () at /lib64/libksgrd.so.7
#9  0x00007ff62a4713e0 in KSGRD::SensorShellAgent::msgRcvd() () at /lib64/libksgrd.so.7
#10 0x00007ff62385ec46 in QMetaObject::activate(QObject*, int, int, void**) () at /lib64/libQt5Core.so.5
#11 0x00007ff623765012 in QProcessPrivate::tryReadFromChannel(QProcessPrivate::Channel*) () at /lib64/libQt5Core.so.5
#12 0x00007ff623765570 in QProcess::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () at /lib64/libQt5Core.so.5
#13 0x00007ff62385ec46 in QMetaObject::activate(QObject*, int, int, void**) () at /lib64/libQt5Core.so.5
#14 0x00007ff6238d7ebe in QSocketNotifier::activated(int, QSocketNotifier::QPrivateSignal) () at /lib64/libQt5Core.so.5
#15 0x00007ff62386b23b in QSocketNotifier::event(QEvent*) () at /lib64/libQt5Core.so.5
#16 0x00007ff6244ef7cc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#17 0x00007ff6244f4e70 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#18 0x00007ff62382e24b in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#19 0x00007ff623885c0d in socketNotifierSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5Core.so.5
#20 0x00007ff61b40ea8a in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#21 0x00007ff61b40ee20 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#22 0x00007ff61b40eecc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#23 0x00007ff62388573f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#24 0x00007ff62382ba8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#25 0x00007ff6238335fc in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#26 0x00007ff62ae1cf09 in kdemain () at /lib64/libkdeinit5_ksysguard.so
#27 0x00007ff62296e790 in __libc_start_main () at /lib64/libc.so.6
#28 0x0000000000400ae9 in _start ()

Possible duplicates by query: bug 347662.

Reported using DrKonqi