Bug 403084

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 Developer Edition

-- Information about the crash:
When copying files from either a network (NFS/SMB) or locally, dolphin crashes. It seems to occur more frequently if the tray progress bar is expanded.

The crash can be reproduced sometimes.

-- 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 0x7fa44e267800 (LWP 5165))]

Thread 4 (Thread 0x7fa421f15700 (LWP 5168)):
#0  0x00007fa4402e0049 in g_mutex_lock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fa440299c81 in g_main_context_query () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa44029a4b7 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa44029a64c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa447cb704b in QEventDispatcherGlib::processEvents (this=0x7fa41c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007fa447c5b30a in QEventLoop::exec (this=this@entry=0x7fa421f14da0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#6  0x00007fa447a86bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#7  0x00007fa447a91adb in QThreadPrivate::start (arg=0x5649df3a98f0) at thread/qthread_unix.cpp:367
#8  0x00007fa4427056db in start_thread (arg=0x7fa421f15700) at pthread_create.c:463
#9  0x00007fa44db0188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fa42ec0c700 (LWP 5167)):
#0  0x00007fa44daf4bf9 in __GI___poll (fds=0x7fa42801b470, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fa44029a539 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa44029a64c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa447cb704b in QEventDispatcherGlib::processEvents (this=0x7fa428000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fa447c5b30a in QEventLoop::exec (this=this@entry=0x7fa42ec0bd70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007fa447a86bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#6  0x00007fa4480fde45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007fa447a91adb in QThreadPrivate::start (arg=0x7fa448375d60) at thread/qthread_unix.cpp:367
#8  0x00007fa4427056db in start_thread (arg=0x7fa42ec0c700) at pthread_create.c:463
#9  0x00007fa44db0188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fa4354d4700 (LWP 5166)):
#0  0x00007fa44daf4bf9 in __GI___poll (fds=0x7fa4354d3ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fa43f905747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fa43f90736a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fa437e79ed9 in QXcbEventReader::run (this=0x5649defa7340) at qxcbconnection.cpp:1391
#4  0x00007fa447a91adb in QThreadPrivate::start (arg=0x5649defa7340) at thread/qthread_unix.cpp:367
#5  0x00007fa4427056db in start_thread (arg=0x7fa4354d4700) at pthread_create.c:463
#6  0x00007fa44db0188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fa44e267800 (LWP 5165)):
[KCrash Handler]
#6  0x00007fa44c21f1fd in KIO::SlaveInterface::calcSpeed() () from /usr/lib/x86_64-linux-gnu/libKF5KIOCore.so.5
#7  0x00007fa447c8c18f in QtPrivate::QSlotObjectBase::call (a=0x7fff4d964d60, r=0x5649dfa8d870, this=0x5649e0434d60) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:376
#8  QMetaObject::activate (sender=sender@entry=0x5649dfe290f0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff4d964d60) at kernel/qobject.cpp:3754
#9  0x00007fa447c8c747 in QMetaObject::activate (sender=sender@entry=0x5649dfe290f0, m=m@entry=0x7fa4480e0da0 <QTimer::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff4d964d60) at kernel/qobject.cpp:3633
#10 0x00007fa447c98e47 in QTimer::timeout (this=this@entry=0x5649dfe290f0, _t1=...) at .moc/moc_qtimer.cpp:200
#11 0x00007fa447c991a8 in QTimer::timerEvent (this=0x5649dfe290f0, e=<optimized out>) at kernel/qtimer.cpp:255
#12 0x00007fa447c8cb9b in QObject::event (this=0x5649dfe290f0, e=<optimized out>) at kernel/qobject.cpp:1273
#13 0x00007fa448c78e1c in QApplicationPrivate::notify_helper (this=this@entry=0x5649def8ac00, receiver=receiver@entry=0x5649dfe290f0, e=e@entry=0x7fff4d965060) at kernel/qapplication.cpp:3727
#14 0x00007fa448c803ef in QApplication::notify (this=0x7fff4d9653d0, receiver=0x5649dfe290f0, e=0x7fff4d965060) at kernel/qapplication.cpp:3486
#15 0x00007fa447c5cfe8 in QCoreApplication::notifyInternal2 (receiver=0x5649dfe290f0, event=event@entry=0x7fff4d965060) at kernel/qcoreapplication.cpp:1048
#16 0x00007fa447cb64be in QCoreApplication::sendEvent (event=0x7fff4d965060, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#17 QTimerInfoList::activateTimers (this=0x5649defc9b10) at kernel/qtimerinfo_unix.cpp:643
#18 0x00007fa447cb6c81 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:182
#19 0x00007fa44029a387 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fa44029a5c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fa44029a64c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007fa447cb702f in QEventDispatcherGlib::processEvents (this=0x5649defd78e0, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#23 0x00007fa437f05761 in QPAEventDispatcherGlib::processEvents (this=0x5649defd78e0, flags=...) at qeventdispatcher_glib.cpp:69
#24 0x00007fa447c5b30a in QEventLoop::exec (this=this@entry=0x7fff4d9652d0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#25 0x00007fa447c644d0 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1336
#26 0x00007fa44de153f1 in kdemain () from /usr/lib/x86_64-linux-gnu/libkdeinit5_dolphin.so
#27 0x00007fa44da01b97 in __libc_start_main (main=0x5649dd480720, argc=2, argv=0x7fff4d965558, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff4d965548) at ../csu/libc-start.c:310
#28 0x00005649dd48075a in _start ()

The reporter indicates this bug may be a duplicate of or related to bug 402665.

Possible duplicates by query: bug 403063.

Reported using DrKonqi