https://bugs.kde.org/show_bug.cgi?id=411612
--- Comment #23 from caulier.gil...@gmail.com ---
With lldb debugger, there is one interresting info : a pointer is null :
2019-09-20 18:53:04.573370+0200 digikam[49235:1645889] [digikam.general] Using
8 CPU core to run threads
2019-09-20 18:53:04.573599+0200 digikam[49235:1646311] [digikam.general] Action
Thread run 1 new jobs
2019-09-20 18:53:04.577944+0200 digikam[49235:1645889] [digikam.general] One
job is done
2019-09-20 18:53:04.578123+0200 digikam[49235:1645889] [digikam.general] Cancel
Main Thread
Process 49235 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS
(code=1, address=0x1)
frame #0: 0x0000000000000001
error: memory read failed for 0x0
Target 0: (digikam) stopped.
(lldb) bt
* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS
(code=1, address=0x1)
* frame #0: 0x0000000000000001
frame #1: 0x0000000103d9d16a
QtGui`QGuiApplicationPrivate::processActivatedEvent(QWindowSystemInterfacePrivate::ActivatedWindowEvent*)
+ 144
frame #2: 0x0000000103d86998 QtGui`bool
QWindowSystemInterfacePrivate::handleWindowSystemEvent<QWindowSystemInterface::SynchronousDelivery>(QWindowSystemInterfacePrivate::WindowSystemEvent*)
+ 74
frame #3: 0x0000000104709245 QtCore`QMetaMethod::invoke(QObject*,
Qt::ConnectionType, QGenericReturnArgument, QGenericArgument, QGenericArgument,
QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument,
QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument) const +
843
frame #4: 0x0000000114283206
libqcocoa.dylib`___lldb_unnamed_symbol432$$libqcocoa.dylib + 1777
frame #5: 0x00007fff430f31b8 Foundation`-[__NSObserver _doit:] + 299
frame #6: 0x00007fff40e9a97a
CoreFoundation`__CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ + 12
frame #7: 0x00007fff40e9a8f4
CoreFoundation`___CFXRegistrationPost_block_invoke + 63
frame #8: 0x00007fff40e9a85e CoreFoundation`_CFXRegistrationPost + 404
frame #9: 0x00007fff40ea2c8d
CoreFoundation`___CFXNotificationPost_block_invoke + 87
frame #10: 0x00007fff40e0bc9c CoreFoundation`-[_CFXNotificationRegistrar
find:object:observer:enumerator:] + 1834
frame #11: 0x00007fff40e0af47 CoreFoundation`_CFXNotificationPost + 840
frame #12: 0x00007fff430aeaab Foundation`-[NSNotificationCenter
postNotificationName:object:userInfo:] + 66
frame #13: 0x00007fff3e65911f AppKit`-[NSWindow resignKeyWindow] + 779
frame #14: 0x00007fff3e6b7d5a AppKit`-[NSWindow
_orderOutAndCalcKeyWithCounter:stillVisible:docWindow:] + 256
frame #15: 0x00007fff3e458990 AppKit`NSPerformVisuallyAtomicChange + 132
frame #16: 0x00007fff3e5ce4b3 AppKit`-[NSWindow
_doWindowOrderOutWithWithKeyCalc:forCounter:orderingDone:docWindow:] + 80
frame #17: 0x00007fff3e5cdf10 AppKit`-[NSWindow
_reallyDoOrderWindowOutRelativeTo:findKey:forCounter:force:isModal:] + 423
frame #18: 0x00007fff3e57395a AppKit`-[NSWindow
_reallyDoOrderWindow:relativeTo:findKey:forCounter:force:isModal:] + 172
frame #19: 0x00007fff3e572521 AppKit`-[NSWindow
_doOrderWindow:relativeTo:findKey:forCounter:force:isModal:] + 283
frame #20: 0x00007fff3e5723a5 AppKit`-[NSWindow orderWindow:relativeTo:] +
152
frame #21: 0x000000011427cb92
libqcocoa.dylib`___lldb_unnamed_symbol308$$libqcocoa.dylib + 1028
frame #22: 0x0000000103da3926 QtGui`QWindowPrivate::setVisible(bool) + 590
frame #23: 0x00000001038c99a5 QtWidgets`QWidgetPrivate::hide_sys() + 173
frame #24: 0x00000001038cbd17 QtWidgets`QWidgetPrivate::hide_helper() + 165
frame #25: 0x00000001038cc16d QtWidgets`QWidgetPrivate::setVisible(bool) +
377
frame #26: 0x00000001038be818
QtWidgets`QWidgetPrivate::close_helper(QWidgetPrivate::CloseMode) + 266
frame #27: 0x0000000101735895
libdigikamgui.6.4.0.dylib`Digikam::DigikamApp::slotExit() + 21
frame #28: 0x000000010171fee7
libdigikamgui.6.4.0.dylib`Digikam::DigikamApp::qt_static_metacall(QObject*,
QMetaObject::Call, int, void**) + 359
frame #29: 0x0000000104727631 QtCore`QMetaObject::activate(QObject*, int,
int, void**) + 2353
frame #30: 0x000000010389588d
QtWidgets`QAction::activate(QAction::ActionEvent) + 307
frame #31: 0x000000010472173e QtCore`QObject::event(QEvent*) + 124
frame #32: 0x000000010389cfd3
QtWidgets`QApplicationPrivate::notify_helper(QObject*, QEvent*) + 271
frame #33: 0x000000010389e369 QtWidgets`QApplication::notify(QObject*,
QEvent*) + 733
frame #34: 0x0000000104701f40
QtCore`QCoreApplication::notifyInternal2(QObject*, QEvent*) + 154
frame #35: 0x0000000104702bcd
QtCore`QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) +
495
frame #36: 0x000000011429485d
libqcocoa.dylib`___lldb_unnamed_symbol715$$libqcocoa.dylib + 183
frame #37: 0x0000000114294eb7
libqcocoa.dylib`___lldb_unnamed_symbol727$$libqcocoa.dylib + 33
frame #38: 0x00007fff40e543bb
CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
frame #39: 0x00007fff40e54361 CoreFoundation`__CFRunLoopDoSource0 + 108
frame #40: 0x00007fff40e3826b CoreFoundation`__CFRunLoopDoSources0 + 195
frame #41: 0x00007fff40e37833 CoreFoundation`__CFRunLoopRun + 1196
frame #42: 0x00007fff40e37135 CoreFoundation`CFRunLoopRunSpecific + 459
frame #43: 0x00007fff400881ab HIToolbox`RunCurrentEventLoopInMode + 292
frame #44: 0x00007fff40087ded HIToolbox`ReceiveNextEventCommon + 355
frame #45: 0x00007fff40087c76
HIToolbox`_BlockUntilNextEventMatchingListInModeWithFilter + 64
frame #46: 0x00007fff3e42079d AppKit`_DPSNextEvent + 1135
frame #47: 0x00007fff3e41f48b AppKit`-[NSApplication(NSEvent)
_nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 1361
frame #48: 0x00007fff3e4195a8 AppKit`-[NSApplication run] + 699
frame #49: 0x000000011429405e
libqcocoa.dylib`___lldb_unnamed_symbol707$$libqcocoa.dylib + 2246
frame #50: 0x00000001046fea1c
QtCore`QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) + 318
frame #51: 0x00000001047023b8 QtCore`QCoreApplication::exec() + 116
frame #52: 0x000000010000ad57 digikam`main + 11575
frame #53: 0x00007fff6ce2a3d5 libdyld.dylib`start + 1
Gilles
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