This apparently happens only once after a reboot.
Dolphin crashes when I mount a usb disk from places panel. It does not crash after ejecting and mounting again the same method. this happens once for some reason after a reboot.

 gdb dolphin
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Reading symbols from dolphin...done.
(gdb) run
Starting program: /usr/bin/dolphin 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0x7fffdf733700 (LWP 11295)]
Icon theme "oxygen" not found.
Icon theme "oxygen" not found.
[New Thread 0x7fffd46de700 (LWP 11296)]
KSambaShare: Could not find smb.conf!
ASSERT: "!m_model->storageSetupNeeded(index)" in file /home/hussam/src/packages/dolphin/trunk/src/dolphin/src/panels/places/placespanel.cpp, line 437

Program received signal SIGABRT, Aborted.
0x00007ffff777f91c in raise () from /usr/lib/libc.so.6
(gdb) bt
#0  0x00007ffff777f91c in raise () from /usr/lib/libc.so.6
#1  0x00007ffff7780fd1 in abort () from /usr/lib/libc.so.6
#2  0x00007ffff199ec36 in QMessageLogger::fatal(char const*, ...) const ()
   from /usr/lib/libQt5Core.so.5
#3  0x00007ffff199982d in qt_assert(char const*, char const*, int) ()
   from /usr/lib/libQt5Core.so.5
#4  0x00007ffff7b66c5f in PlacesPanel::slotStorageSetupDone (this=0x809cf0, 
    index=12, success=<optimized out>)
    at /home/hussam/src/packages/dolphin/trunk/src/dolphin/src/panels/places/placespanel.cpp:437                                                                  
#5  0x00007ffff1bda623 in QMetaObject::activate(QObject*, int, int, void**) ()   
   from /usr/lib/libQt5Core.so.5                                                 
#6  0x00007ffff7ba4199 in PlacesItemModel::storageSetupDone (                    
    this=this@entry=0xa6fc70, _t1=_t1@entry=12, _t2=_t2@entry=true)
    at /home/hussam/src/packages/dolphin/trunk/src/build/src/moc_placesitemmodel.cpp:199
#7  0x00007ffff7b74010 in PlacesItemModel::slotStorageSetupDone (this=0xa6fc70, 
    error=Solid::NoError, errorData=..., udi=...)
    at /home/hussam/src/packages/dolphin/trunk/src/dolphin/src/panels/places/placesitemmodel.cpp:608
#8  0x00007ffff1bda623 in QMetaObject::activate(QObject*, int, int, void**) ()
   from /usr/lib/libQt5Core.so.5
#9  0x00007ffff530a906 in Solid::StorageAccess::setupDone (
    this=this@entry=0x77ba70, _t1=Solid::NoError, _t2=..., _t3=...)
    at /home/hussam/src/packages/solid/trunk/src/build/src/solid/moc_storageaccess.cpp:237
#10 0x00007ffff530ec70 in Solid::StorageAccess::qt_static_metacall (
    _o=0x77ba70, _c=<optimized out>, _id=<optimized out>, _a=0x7fffffffdb00)
    at /home/hussam/src/packages/solid/trunk/src/build/src/solid/moc_storageaccess.cpp:98
#11 0x00007ffff1bda7a7 in QMetaObject::activate(QObject*, int, int, void**) ()
   from /usr/lib/libQt5Core.so.5
#12 0x00007ffff5309686 in Solid::Backends::UDisks2::StorageAccess::setupDone (
    this=this@entry=0x7bb2c0, _t1=_t1@entry=Solid::NoError, _t2=..., _t3=...)
    at /home/hussam/src/packages/solid/trunk/src/build/src/solid/moc_udisksstorageaccess.cpp:268
#13 0x00007ffff52faf25 in Solid::Backends::UDisks2::StorageAccess::slotSetupDone
    (this=0x7bb2c0, error=0, errorString=...)
    at /home/hussam/src/packages/solid/trunk/src/solid-5.14.0/src/solid/devices/backends/udisks2/udisksstorageaccess.cpp:220
#14 0x00007ffff530f31f in Solid::Backends::UDisks2::StorageAccess::qt_static_metacall (_o=_o@entry=0x7bb2c0, _c=_c@entry=QMetaObject::InvokeMetaMethod, 
    _id=_id@entry=10, _a=_a@entry=0x7fffffffdd70)
---Type <return> to continue, or q <return> to quit---
    at /home/hussam/src/packages/solid/trunk/src/build/src/solid/moc_udisksstorageaccess.cpp:143
#15 0x00007ffff5314118 in Solid::Backends::UDisks2::StorageAccess::qt_metacall (
    this=0x7bb2c0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, 
    _a=0x7fffffffdd70)
    at /home/hussam/src/packages/solid/trunk/src/build/src/solid/moc_udisksstorageaccess.cpp:247
#16 0x00007ffff201bc82 in ?? () from /usr/lib/libQt5DBus.so.5
#17 0x00007ffff1bdb74f in QObject::event(QEvent*) ()
   from /usr/lib/libQt5Core.so.5
#18 0x00007ffff2d92f4c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
    () from /usr/lib/libQt5Widgets.so.5
#19 0x00007ffff2d987a8 in QApplication::notify(QObject*, QEvent*) ()
   from /usr/lib/libQt5Widgets.so.5
#20 0x00007ffff1ba972b in QCoreApplication::notifyInternal(QObject*, QEvent*) ()
   from /usr/lib/libQt5Core.so.5
#21 0x00007ffff1babdef in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQt5Core.so.5
#22 0x00007ffff1c041fa in ?? () from /usr/lib/libQt5Core.so.5
#23 0x00007fffec83408a in g_main_context_dispatch ()
   from /usr/lib/libglib-2.0.so.0
#24 0x00007fffec834318 in ?? () from /usr/lib/libglib-2.0.so.0
#25 0x00007fffec8343f2 in g_main_context_iteration ()
   from /usr/lib/libglib-2.0.so.0
#26 0x00007ffff1c04680 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#27 0x00007ffff1ba6e73 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#28 0x00007ffff1baf556 in QCoreApplication::exec() ()
   from /usr/lib/libQt5Core.so.5
#29 0x00007ffff7b5d8cf in kdemain (argc=1, argv=<optimized out>)
    at /home/hussam/src/packages/dolphin/trunk/src/dolphin/src/main.cpp:146
#30 0x00007ffff776b734 in __libc_start_main () from /usr/lib/libc.so.6
#31 0x0000000000400799 in _start ()
(gdb) 
(gdb) 


Reproducible: Always