Bug 402059

Application: dolphin (18.08.3)

Qt Version: 5.11.2
Frameworks Version: 5.52.0
Operating System: Linux 4.11.12-041112-generic x86_64
Distribution: KDE neon User Edition 5.14

-- Information about the crash:
What I was doing when the application crashed:
I renamed a folder within Dropbox. Renaming this folder always causes Dolphin to crash, but only for this folder.

The crash can be reproduced every time.

-- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fb75aa7b800 (LWP 16752))]

Thread 4 (Thread 0x7fb7300a1700 (LWP 16755)):
#0  0x00007fb75a3010b4 in __GI___libc_read (fd=18, buf=0x7fb7300a0b90, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fb74cb95cd0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb74cb51027 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb74cb514e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb74cb5164c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fb7544e804b in QEventDispatcherGlib::processEvents (this=0x7fb728000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007fb75448c30a in QEventLoop::exec (this=this@entry=0x7fb7300a0da0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#7  0x00007fb7542b7bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#8  0x00007fb7542c2adb in QThreadPrivate::start (arg=0x779e33d3c0) at thread/qthread_unix.cpp:367
#9  0x00007fb74ef396db in start_thread (arg=0x7fb7300a1700) at pthread_create.c:463
#10 0x00007fb75a31288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fb73bbfd700 (LWP 16754)):
#0  0x00007fb75a305bf9 in __GI___poll (fds=0x7fb73401b3b0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fb74cb51539 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb74cb5164c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7544e804b in QEventDispatcherGlib::processEvents (this=0x7fb734000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fb75448c30a in QEventLoop::exec (this=this@entry=0x7fb73bbfcd70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007fb7542b7bba in QThread::exec (this=this@entry=0x7fb754ba6d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:525
#6  0x00007fb75492ee45 in QDBusConnectionManager::run (this=0x7fb754ba6d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#7  0x00007fb7542c2adb in QThreadPrivate::start (arg=0x7fb754ba6d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:367
#8  0x00007fb74ef396db in start_thread (arg=0x7fb73bbfd700) at pthread_create.c:463
#9  0x00007fb75a31288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fb742883700 (LWP 16753)):
#0  0x00007fb75a305bf9 in __GI___poll (fds=0x7fb742882ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fb74c1bb747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fb74c1bd36a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fb745843ed9 in QXcbEventReader::run (this=0x779de2f400) at qxcbconnection.cpp:1391
#4  0x00007fb7542c2adb in QThreadPrivate::start (arg=0x779de2f400) at thread/qthread_unix.cpp:367
#5  0x00007fb74ef396db in start_thread (arg=0x7fb742883700) at pthread_create.c:463
#6  0x00007fb75a31288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fb75aa7b800 (LWP 16752)):
[KCrash Handler]
#6  std::__atomic_base<int>::operator++ (this=0x6900720077002f) at /usr/include/c++/7/bits/atomic_base.h:296
#7  QAtomicOps<int>::ref<int> (_q_value=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qatomic_cxx11.h:265
#8  QBasicAtomicInteger<int>::ref (this=0x6900720077002f) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qbasicatomic.h:114
#9  QSharedDataPointer<KFileItemPrivate>::QSharedDataPointer (o=..., this=0x7ffd17206978) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qshareddata.h:92
#10 KFileItem::KFileItem (this=0x7ffd17206978) at ./src/core/kfileitem.h:47
#11 0x00007fb758ab845d in KCoreDirListerCache::renameDir (this=this@entry=0x7fb758d26280 <(anonymous namespace)::Q_QGS_kDirListerCache::innerFunction()::holder>, oldUrl=..., newUrl=...) at ./src/core/kcoredirlister.cpp:1576
#12 0x00007fb758aba43f in KCoreDirListerCache::slotFileRenamed (this=0x7fb758d26280 <(anonymous namespace)::Q_QGS_kDirListerCache::innerFunction()::holder>, _src=..., _dst=..., dstPath=...) at ./src/core/kcoredirlister.cpp:969
#13 0x00007fb7544bd18f in QtPrivate::QSlotObjectBase::call (a=0x7ffd17206c10, r=0x7fb758d26280 <(anonymous namespace)::Q_QGS_kDirListerCache::innerFunction()::holder>, this=0x779e256590) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:376
#14 QMetaObject::activate (sender=0x779e1e8480, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7ffd17206c10) at kernel/qobject.cpp:3754
#15 0x00007fb7544bd747 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7fb758d234a0 <OrgKdeKDirNotifyInterface::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7ffd17206c10) at kernel/qobject.cpp:3633
#16 0x00007fb758adbaaf in OrgKdeKDirNotifyInterface::FileRenamedWithLocalPath (this=<optimized out>, _t1=..., _t2=..., _t3=...) at ./obj-x86_64-linux-gnu/src/core/KF5KIOCore_autogen/EWIEGA46WW/moc_kdirnotify.cpp:220
#17 0x00007fb758adbd9c in OrgKdeKDirNotifyInterface::qt_static_metacall (_o=_o@entry=0x779e1e8480, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=1, _a=_a@entry=0x7ffd17206d50) at ./obj-x86_64-linux-gnu/src/core/KF5KIOCore_autogen/EWIEGA46WW/moc_kdirnotify.cpp:103
#18 0x00007fb758adcb55 in OrgKdeKDirNotifyInterface::qt_metacall (this=0x779e1e8480, _c=QMetaObject::InvokeMetaMethod, _id=1, _a=0x7ffd17206d50) at ./obj-x86_64-linux-gnu/src/core/KF5KIOCore_autogen/EWIEGA46WW/moc_kdirnotify.cpp:199
#19 0x00007fb754939f58 in QDBusConnectionPrivate::deliverCall (this=<optimized out>, object=<optimized out>, msg=..., metaTypes=..., slotIdx=<optimized out>) at qdbusintegrator.cpp:991
#20 0x00007fb7544bdbe2 in QObject::event (this=0x779e1e8480, e=<optimized out>) at kernel/qobject.cpp:1251
#21 0x00007fb7554a9e1c in QApplicationPrivate::notify_helper (this=this@entry=0x779de38520, receiver=receiver@entry=0x779e1e8480, e=e@entry=0x7fb734011740) at kernel/qapplication.cpp:3727
#22 0x00007fb7554b13ef in QApplication::notify (this=0x7ffd17207420, receiver=0x779e1e8480, e=0x7fb734011740) at kernel/qapplication.cpp:3486
#23 0x00007fb75448dfe8 in QCoreApplication::notifyInternal2 (receiver=0x779e1e8480, event=event@entry=0x7fb734011740) at kernel/qcoreapplication.cpp:1048
#24 0x00007fb754490b2d in QCoreApplication::sendEvent (event=0x7fb734011740, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#25 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x779de367c0) at kernel/qcoreapplication.cpp:1745
#26 0x00007fb7544910e8 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1599
#27 0x00007fb7544e89f3 in postEventSourceDispatch (s=0x779de82540) at kernel/qeventdispatcher_glib.cpp:276
#28 0x00007fb74cb51387 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007fb74cb515c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007fb74cb5164c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007fb7544e802f in QEventDispatcherGlib::processEvents (this=0x779de802d0, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#32 0x00007fb7458cf761 in QPAEventDispatcherGlib::processEvents (this=0x779de802d0, flags=...) at qeventdispatcher_glib.cpp:69
#33 0x00007fb75448c30a in QEventLoop::exec (this=this@entry=0x7ffd17207320, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#34 0x00007fb7544954d0 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1336
#35 0x00007fb754ca39cc in QGuiApplication::exec () at kernel/qguiapplication.cpp:1762
#36 0x00007fb7554a9d75 in QApplication::exec () at kernel/qapplication.cpp:2901
#37 0x00007fb75a62603a in kdemain (argc=<optimized out>, argv=<optimized out>) at ./src/main.cpp:166
#38 0x00007fb75a212b97 in __libc_start_main (main=0x779d7b2720 <main>, argc=1, argv=0x7ffd172075a8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffd17207598) at ../csu/libc-start.c:310
#39 0x000000779d7b275a in _start ()

Reported using DrKonqi