Application: baloo_file (5.18.0)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-22-generic x86_64
Distribution: Ubuntu 16.04 LTS

-- Information about the crash:
- What I was doing when the application crashed:
Running the Install Media Creator tool with VirtualBox Manager open (no VMs running) and Firefox open with three tabs that were displaying github READMEs.

-- Backtrace:
Application: Baloo File Indexing Daemon (baloo_file), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[KCrash Handler]
#6  0x00007fa4445c3418 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54
#7  0x00007fa4445c501a in __GI_abort () at abort.c:89
#8  0x00007fa445074ff1 in qt_message_fatal (context=..., message=<synthetic pointer>) at global/qlogging.cpp:1578
#9  QMessageLogger::fatal (this=this@entry=0x7ffc7eb077c0, msg=msg@entry=0x7fa4466d8d28 "Cannot construct placeholder type QDBusRawType") at global/qlogging.cpp:781
#10 0x00007fa4466b5552 in QDBusRawTypeHandler::construct () at qdbusmetaobject.cpp:133
#11 0x00007fa4452a89c0 in QMetaType::construct (copy=0x0, where=0x7ffc7eb078e0, this=0x7ffc7eb07820) at ../../include/QtCore/../../src/corelib/kernel/qmetatype.h:2141
#12 (anonymous namespace)::customConstruct (d=0x7ffc7eb078e0, copy=0x0) at kernel/qvariant.cpp:1019
#13 0x00007fa4452a98bf in QVariant::QVariant (this=0x7ffc7eb078e0, typeId=<optimized out>, copy=<optimized out>) at kernel/qvariant.cpp:1660
#14 0x00007fa445275cf2 in QMetaProperty::read (this=this@entry=0x7ffc7eb07980, object=object@entry=0x28ec7f0) at kernel/qmetaobject.cpp:3010
#15 0x00007fa445295b0f in QObject::property (this=0x28ec7f0, name=0x2a2fdf8 "MountPoints") at kernel/qobject.cpp:3893
#16 0x00007fa4462ac664 in Solid::Backends::UDisks2::DeviceBackend::checkCache (this=0x2caed60, key=...) at ../../../src/solid/devices/backends/udisks2/udisksdevicebackend.cpp:185
#17 0x00007fa4462ac883 in Solid::Backends::UDisks2::DeviceBackend::propertyExists (this=0x2caed60, key=...) at ../../../src/solid/devices/backends/udisks2/udisksdevicebackend.cpp:132
#18 0x00007fa4462a45be in Solid::Backends::UDisks2::Device::propertyExists (this=this@entry=0x2a2fe30, key=...) at ../../../src/solid/devices/backends/udisks2/udisksdevice.cpp:126
#19 0x00007fa4462a637f in Solid::Backends::UDisks2::Device::isMounted (this=0x2a2fe30) at ../../../src/solid/devices/backends/udisks2/udisksdevice.cpp:818
#20 0x00007fa4462bf711 in Solid::Backends::UDisks2::StorageAccess::isAccessible (this=0x2922170) at ../../../src/solid/devices/backends/udisks2/udisksstorageaccess.cpp:75
#21 0x00007fa4462bf944 in Solid::Backends::UDisks2::StorageAccess::updateCache (this=0x2922170) at ../../../src/solid/devices/backends/udisks2/udisksstorageaccess.cpp:138
#22 Solid::Backends::UDisks2::StorageAccess::StorageAccess (this=0x2922170, device=0x2a2fe30, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at ../../../src/solid/devices/backends/udisks2/udisksstorageaccess.cpp:36
#23 0x00007fa4462a4780 in Solid::Backends::UDisks2::Device::createDeviceInterface (this=0x2a2fe30, type=<optimized out>) at ../../../src/solid/devices/backends/udisks2/udisksdevice.cpp:174
#24 0x00007fa44626e68f in Solid::Device::asDeviceInterface (this=this@entry=0x7ffc7eb07cf0, type=@0x7ffc7eb07c80: Solid::DeviceInterface::StorageAccess) at ../../../src/solid/devices/frontend/device.cpp:154
#25 0x0000000000423116 in Solid::Device::as<Solid::StorageAccess> (this=0x7ffc7eb07cf0) at /usr/include/KF5/Solid/solid/device.h:247
#26 Baloo::StorageDevices::createCacheEntry (this=this@entry=0x203a3d0, dev=...) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/file/storagedevices.cpp:79
#27 0x00000000004233a8 in Baloo::StorageDevices::slotSolidDeviceAdded (this=0x203a3d0, udi=...) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/file/storagedevices.cpp:96
#28 0x00007fa445296e4f in QtPrivate::QSlotObjectBase::call (a=0x7ffc7eb07e50, r=0x203a3d0, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#29 QMetaObject::activate (sender=0x203a160, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffc7eb07e50) at kernel/qobject.cpp:3698
#30 0x00007fa4452977d7 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7fa4464fbe60 <Solid::DeviceNotifier::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffc7eb07e50) at kernel/qobject.cpp:3578
#31 0x00007fa44626ebb2 in Solid::DeviceNotifier::deviceAdded (this=<optimized out>, _t1=...) at ./moc_devicenotifier.cpp:136
#32 0x00007fa445296fca in QMetaObject::activate (sender=sender@entry=0x203c200, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffc7eb07f80) at kernel/qobject.cpp:3713
#33 0x00007fa4452977d7 in QMetaObject::activate (sender=sender@entry=0x203c200, m=m@entry=0x7fa446504540 <Solid::Ifaces::DeviceManager::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffc7eb07f80) at kernel/qobject.cpp:3578
#34 0x00007fa4462ca262 in Solid::Ifaces::DeviceManager::deviceAdded (this=this@entry=0x203c200, _t1=...) at moc_devicemanager.cpp:136
#35 0x00007fa44629f5e0 in Solid::Backends::UDisks2::Manager::slotInterfacesAdded (this=0x203c200, object_path=..., interfaces_and_properties=...) at ../../../src/solid/devices/backends/udisks2/udisksmanager.cpp:197
#36 0x00007fa4462cea7d in Solid::Backends::UDisks2::Manager::qt_static_metacall (_o=_o@entry=0x203c200, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=0, _a=_a@entry=0x7ffc7eb08240) at moc_udisksmanager.cpp:87
#37 0x00007fa445296fca in QMetaObject::activate (sender=sender@entry=0x203c218, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffc7eb08240) at kernel/qobject.cpp:3713
#38 0x00007fa4452977d7 in QMetaObject::activate (sender=sender@entry=0x203c218, m=m@entry=0x7fa446504a00 <OrgFreedesktopDBusObjectManagerInterface::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffc7eb08240) at kernel/qobject.cpp:3578
#39 0x00007fa4462ced4f in OrgFreedesktopDBusObjectManagerInterface::InterfacesAdded (_t2=..., _t1=..., this=0x203c218) at moc_manager.cpp:174
#40 OrgFreedesktopDBusObjectManagerInterface::qt_static_metacall (_o=_o@entry=0x203c218, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=0, _a=_a@entry=0x7ffc7eb083e0) at moc_manager.cpp:90
#41 0x00007fa4462d2de5 in OrgFreedesktopDBusObjectManagerInterface::qt_metacall (this=0x203c218, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7ffc7eb083e0) at moc_manager.cpp:160
#42 0x00007fa446692913 in QDBusConnectionPrivate::deliverCall (this=0x203c310, object=0x203c218, msg=..., metaTypes=..., slotIdx=6) at qdbusintegrator.cpp:978
#43 0x00007fa445297ea1 in QObject::event (this=0x203c218, e=<optimized out>) at kernel/qobject.cpp:1239
#44 0x00007fa44526860c in QCoreApplication::notify (event=0x2d24d60, receiver=0x203c218, this=0x7ffc7eb088b0) at kernel/qcoreapplication.cpp:1038
#45 QCoreApplication::notifyInternal (this=0x7ffc7eb088b0, receiver=0x203c218, event=event@entry=0x2d24d60) at kernel/qcoreapplication.cpp:965
#46 0x00007fa44526aa26 in QCoreApplication::sendEvent (event=0x2d24d60, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:224
#47 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x2036a00) at kernel/qcoreapplication.cpp:1593
#48 0x00007fa44526af08 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1451
#49 0x00007fa4452be673 in postEventSourceDispatch (s=0x2037e90) at kernel/qeventdispatcher_glib.cpp:271
#50 0x00007fa4418591a7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#51 0x00007fa441859400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#52 0x00007fa4418594ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#53 0x00007fa4452bea7f in QEventDispatcherGlib::processEvents (this=0x2035740, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#54 0x00007fa445265dea in QEventLoop::exec (this=this@entry=0x7ffc7eb087f0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#55 0x00007fa44526de8c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229
#56 0x000000000041698c in main (argc=1, argv=<optimized out>) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/file/main.cpp:88

Possible duplicates by query: bug 365296, bug 364721, bug 361817, bug 356019, bug 355096.

Reported using DrKonqi