https://bugs.kde.org/show_bug.cgi?id=414802

            Bug ID: 414802
           Summary: ksysgard crash after close
           Product: ksysguard
           Version: 5.17.3
          Platform: unspecified
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: ksysguard-b...@kde.org
          Reporter: kvanton....@yandex.ru
  Target Milestone: ---

Application: ksysguard (5.17.3)

Qt Version: 5.13.2
Frameworks Version: 5.64.0
Operating System: Linux 5.3.13-050313-generic x86_64
Distribution: KDE neon User Edition 5.17

-- Information about the crash:
.- What I was doing when the application crashed:
Two copiesksysgard were opened, one was closed and only he crash

The crash can be reproduced sometimes.

-- Backtrace:
Application: Системный монитор (ksysguard), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f5b45b80bc0 (LWP 26639))]

Thread 2 (Thread 0x7f5b0fff2700 (LWP 26641)):
#0  0x00007f5b326fc4a0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f5b326fea63 in g_main_context_prepare () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5b326ff4fb in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5b326ff6dc in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5b40b50b9b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7f5b08000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f5b40af106a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7f5b0fff19b0, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:225
#6  0x00007f5b4090c3aa in QThread::exec() (this=this@entry=0x7f5b414ded80
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
thread/qthread.cpp:531
#7  0x00007f5b412670e5 in QDBusConnectionManager::run() (this=0x7f5b414ded80
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
qdbusconnection.cpp:178
#8  0x00007f5b4090db52 in QThreadPrivate::start(void*) (arg=0x7f5b414ded80
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
thread/qthread_unix.cpp:360
#9  0x00007f5b3467f6db in start_thread (arg=0x7f5b0fff2700) at
pthread_create.c:463
#10 0x00007f5b4548888f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f5b45b80bc0 (LWP 26639)):
[KCrash Handler]
#6  0x00007f5b41e51874 in QWidget::sizePolicy() const
(this=this@entry=0x556547659cb0) at kernel/qwidget.cpp:10382
#7  0x00007f5b41f576cb in QLabelPrivate::updateLabel()
(this=this@entry=0x55654729ae50) at widgets/qlabel.cpp:1126
#8  0x00007f5b41f5867b in QLabel::setText(QString const&) (this=0x556547251ce0,
text=...) at widgets/qlabel.cpp:320
#9  0x00007f5b457cb460 in  () at
/usr/lib/x86_64-linux-gnu/libkdeinit5_ksysguard.so
#10 0x00007f5b44817bf2 in KSGRD::SensorAgent::processAnswer(char const*, int)
() at /usr/lib/x86_64-linux-gnu/libksgrd.so.7
#11 0x00007f5b4481ecd4 in  () at /usr/lib/x86_64-linux-gnu/libksgrd.so.7
#12 0x00007f5b40b239ef in QtPrivate::QSlotObjectBase::call(QObject*, void**)
(a=0x7ffd60ef27f0, r=0x5565473371b0, this=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#13 0x00007f5b40b239ef in QMetaObject::activate(QObject*, int, int, void**)
(sender=sender@entry=0x5565473409c0, signalOffset=<optimized out>,
local_signal_index=local_signal_index@entry=6, argv=<optimized out>,
argv@entry=0x7ffd60ef27f0) at kernel/qobject.cpp:3789
#14 0x00007f5b40b23f97 in QMetaObject::activate(QObject*, QMetaObject const*,
int, void**) (sender=sender@entry=0x5565473409c0, m=m@entry=0x7f5b40fa68a0
<QProcess::staticMetaObject>, local_signal_index=local_signal_index@entry=6,
argv=argv@entry=0x7ffd60ef27f0) at kernel/qobject.cpp:3660
#15 0x00007f5b40a6167a in
QProcess::readyReadStandardOutput(QProcess::QPrivateSignal)
(this=this@entry=0x5565473409c0, _t1=...) at .moc/moc_qprocess.cpp:367
#16 0x00007f5b40a68431 in
QProcessPrivate::tryReadFromChannel(QProcessPrivate::Channel*)
(this=0x5565472e5f60, channel=0x5565472e6088) at io/qprocess.cpp:1078
#17 0x00007f5b40a68900 in QProcessPrivate::_q_canReadStandardOutput()
(this=<optimized out>) at io/qprocess.cpp:1089
#18 0x00007f5b40a68900 in QProcess::qt_static_metacall(QObject*,
QMetaObject::Call, int, void**) (_o=<optimized out>, _c=<optimized out>,
_id=<optimized out>, _a=0x7ffd60ef29c0) at .moc/moc_qprocess.cpp:208
#19 0x00007f5b40b238d5 in QMetaObject::activate(QObject*, int, int, void**)
(sender=sender@entry=0x55654733e390, signalOffset=<optimized out>,
local_signal_index=local_signal_index@entry=0, argv=<optimized out>,
argv@entry=0x7ffd60ef29c0) at kernel/qobject.cpp:3809
#20 0x00007f5b40b23f97 in QMetaObject::activate(QObject*, QMetaObject const*,
int, void**) (sender=sender@entry=0x55654733e390, m=m@entry=0x7f5b40fa8c40
<QSocketNotifier::staticMetaObject>,
local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffd60ef29c0)
at kernel/qobject.cpp:3660
#21 0x00007f5b40b30028 in QSocketNotifier::activated(int,
QSocketNotifier::QPrivateSignal) (this=this@entry=0x55654733e390,
_t1=<optimized out>, _t2=...) at .moc/moc_qsocketnotifier.cpp:141
#22 0x00007f5b40b303e2 in QSocketNotifier::event(QEvent*) (this=0x55654733e390,
e=0x7ffd60ef2ca0) at kernel/qsocketnotifier.cpp:266
#23 0x00007f5b41e26eac in QApplicationPrivate::notify_helper(QObject*, QEvent*)
(this=this@entry=0x556546d42e80, receiver=receiver@entry=0x55654733e390,
e=e@entry=0x7ffd60ef2ca0) at kernel/qapplication.cpp:3703
#24 0x00007f5b41e2e4b0 in QApplication::notify(QObject*, QEvent*)
(this=0x7ffd60ef2f90, receiver=0x55654733e390, e=0x7ffd60ef2ca0) at
kernel/qapplication.cpp:3449
#25 0x00007f5b40af2f08 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
(receiver=0x55654733e390, event=0x7ffd60ef2ca0) at
kernel/qcoreapplication.cpp:1095
#26 0x00007f5b40af30de in QCoreApplication::sendEvent(QObject*, QEvent*)
(receiver=<optimized out>, event=event@entry=0x7ffd60ef2ca0) at
kernel/qcoreapplication.cpp:1490
#27 0x00007f5b40b517e8 in socketNotifierSourceDispatch(GSource*, GSourceFunc,
gpointer) (source=0x556546de3ee0) at kernel/qeventdispatcher_glib.cpp:107
#28 0x00007f5b326ff417 in g_main_context_dispatch () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f5b326ff650 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007f5b326ff6dc in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007f5b40b50b7f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x556546de9ab0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#32 0x00007f5b40af106a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7ffd60ef2ec0, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:225
#33 0x00007f5b40afa3e0 in QCoreApplication::exec() () at
kernel/qcoreapplication.cpp:1403
#34 0x00007f5b457cd36a in kdemain () at
/usr/lib/x86_64-linux-gnu/libkdeinit5_ksysguard.so
#35 0x00007f5b45388b97 in __libc_start_main (main=0x556545122720, argc=1,
argv=0x7ffd60ef30d8, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7ffd60ef30c8) at ../csu/libc-start.c:310
#36 0x000055654512275a in _start ()

The reporter indicates this bug may be a duplicate of or related to bug 350140,
bug 409057, bug 407394, bug 403291, bug 400515, bug 400499.

Possible duplicates by query: bug 413942, bug 413056, bug 412868, bug 411325,
bug 409981.

Reported using DrKonqi

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