Application: dolphin (18.12.1)

Qt Version: 5.11.2
Frameworks Version: 5.54.0
Operating System: Linux 4.15.0-43-generic x86_64
Distribution: KDE neon User Edition 5.14

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

1) Copy multiplus files (293 Mb) by ftp protcol
2) Plasma notification show the pogress download up until dolphin's crash icon

The crash can be reproduced every time.

-- Backtrace:
Application: Dolphin (dolphin), signal: Floating point exception
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f7efedb9800 (LWP 22368))]

Thread 4 (Thread 0x7f7ed407e700 (LWP 22372)):
#0  0x00007f7ef0e9e049 in g_mutex_lock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7ef0e580c6 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7ef0e585c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7ef0e5864c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7ef87f204b in QEventDispatcherGlib::processEvents (this=0x7f7ecc000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f7ef879630a in QEventLoop::exec (this=this@entry=0x7f7ed407dda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#6  0x00007f7ef85c1bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#7  0x00007f7ef85ccadb in QThreadPrivate::start (arg=0x56551c11b340) at thread/qthread_unix.cpp:367
#8  0x00007f7ef32406db in start_thread (arg=0x7f7ed407e700) at pthread_create.c:463
#9  0x00007f7efe63b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f7edffff700 (LWP 22371)):
#0  0x00007f7ef0e9e064 in g_mutex_unlock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7ef0e5845e in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7ef0e5864c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7ef87f204b in QEventDispatcherGlib::processEvents (this=0x7f7ed8000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f7ef879630a in QEventLoop::exec (this=this@entry=0x7f7edfffed70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007f7ef85c1bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#6  0x00007f7ef8c38e45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f7ef85ccadb in QThreadPrivate::start (arg=0x7f7ef8eb0d60) at thread/qthread_unix.cpp:367
#8  0x00007f7ef32406db in start_thread (arg=0x7f7edffff700) at pthread_create.c:463
#9  0x00007f7efe63b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f7ee6be2700 (LWP 22370)):
#0  0x00007f7efe62ebf9 in __GI___poll (fds=0x7f7ee6be1ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f7ef04c3747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f7ef04c536a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f7ee9ba2ed9 in QXcbEventReader::run (this=0x56551bba4400) at qxcbconnection.cpp:1391
#4  0x00007f7ef85ccadb in QThreadPrivate::start (arg=0x56551bba4400) at thread/qthread_unix.cpp:367
#5  0x00007f7ef32406db in start_thread (arg=0x7f7ee6be2700) at pthread_create.c:463
#6  0x00007f7efe63b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f7efedb9800 (LWP 22368)):
[KCrash Handler]
#6  0x00007f7efcd591fd in KIO::SlaveInterface::calcSpeed (this=0x56551c75b860) at ./src/core/slaveinterface.cpp:113
#7  0x00007f7ef87c718f in QtPrivate::QSlotObjectBase::call (a=0x7ffc43bd78b0, r=0x56551c75b860, this=0x56551cb7f020) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:376
#8  QMetaObject::activate (sender=sender@entry=0x56551c6d5d60, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffc43bd78b0) at kernel/qobject.cpp:3754
#9  0x00007f7ef87c7747 in QMetaObject::activate (sender=sender@entry=0x56551c6d5d60, m=m@entry=0x7f7ef8c1bda0 <QTimer::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffc43bd78b0) at kernel/qobject.cpp:3633
#10 0x00007f7ef87d3e47 in QTimer::timeout (this=this@entry=0x56551c6d5d60, _t1=...) at .moc/moc_qtimer.cpp:200
#11 0x00007f7ef87d41a8 in QTimer::timerEvent (this=0x56551c6d5d60, e=<optimized out>) at kernel/qtimer.cpp:255
#12 0x00007f7ef87c7b9b in QObject::event (this=0x56551c6d5d60, e=<optimized out>) at kernel/qobject.cpp:1273
#13 0x00007f7ef97b3e1c in QApplicationPrivate::notify_helper (this=this@entry=0x56551bbad560, receiver=receiver@entry=0x56551c6d5d60, e=e@entry=0x7ffc43bd7bb0) at kernel/qapplication.cpp:3727
#14 0x00007f7ef97bb3ef in QApplication::notify (this=0x7ffc43bd7f20, receiver=0x56551c6d5d60, e=0x7ffc43bd7bb0) at kernel/qapplication.cpp:3486
#15 0x00007f7ef8797fe8 in QCoreApplication::notifyInternal2 (receiver=0x56551c6d5d60, event=event@entry=0x7ffc43bd7bb0) at kernel/qcoreapplication.cpp:1048
#16 0x00007f7ef87f14be in QCoreApplication::sendEvent (event=0x7ffc43bd7bb0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#17 QTimerInfoList::activateTimers (this=0x56551bbfcf30) at kernel/qtimerinfo_unix.cpp:643
#18 0x00007f7ef87f1cb9 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:182
#19 idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:229
#20 0x00007f7ef0e58387 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f7ef0e585c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f7ef0e5864c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f7ef87f202f in QEventDispatcherGlib::processEvents (this=0x56551bbf37e0, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#24 0x00007f7ee9c2e761 in QPAEventDispatcherGlib::processEvents (this=0x56551bbf37e0, flags=...) at qeventdispatcher_glib.cpp:69
#25 0x00007f7ef879630a in QEventLoop::exec (this=this@entry=0x7ffc43bd7e20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#26 0x00007f7ef879f4d0 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1336
#27 0x00007f7ef8fad9cc in QGuiApplication::exec () at kernel/qguiapplication.cpp:1762
#28 0x00007f7ef97b3d75 in QApplication::exec () at kernel/qapplication.cpp:2901
#29 0x00007f7efe94f3f1 in kdemain (argc=<optimized out>, argv=<optimized out>) at ./src/main.cpp:168
#30 0x00007f7efe53bb97 in __libc_start_main (main=0x5655199dc720 <main>, argc=1, argv=0x7ffc43bd80a8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc43bd8098) at ../csu/libc-start.c:310
#31 0x00005655199dc75a in _start ()

Possible duplicates by query: bug 403206, bug 403084, bug 403063.

Reported using DrKonqi