Torsdag 23. januar 2014 16.05.15 skrev Stanislav Kolář: > Hi all, > > whenever we call QDialog::exec(), the app crashes (see the attached crash > report + lldb dumps). We use Qt 5.2 > It crashes only on one particular machine, it runs on another machine > without any problems. I really don't know what is wrong (it seems it has > something to do with the accessibility events handling, but we didn't do > anything special with accessibility)
It looks very similar to this bug: https://bugreports.qt-project.org/browse/QTBUG-36317 Could you check if it is fixed when using Qt 5.2.1? It looks as if this is a 32 bit build of Qt, so I assume you built it yourself anyway. Greetings, Frederik > > Date/Time: 2014-01-23 08:42:51.559 +0100 > OS Version: Mac OS X 10.9.1 (13B42) > Report Version: 11 > Anonymous UUID: B524C2F7-2C97-E23E-D37D-E57B85E65AFF > > Crashed Thread: 0 Dispatch queue: com.apple.main-thread > > Exception Type: EXC_BAD_ACCESS (SIGBUS) > Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000000 > > Thread 0 Crashed:: Dispatch queue: com.apple.main-thread > 0 libQt5Gui.5.dylib 0x00cd5418 > QAccessible::registerAccessibleInterface(QAccessibleInterface*) + 24 1 > libQt5Gui.5.dylib 0x00cd5566 > QAccessible::uniqueId(QAccessibleInterface*) + 70 2 > libqcocoa.dylib 0x05faf00d > QCocoaAccessibility::notifyAccessibilityUpdate(QAccessibleEvent*) + 29 3 > libQt5Gui.5.dylib 0x00cd6697 > QAccessible::updateAccessibility(QAccessibleEvent*) + 103 4 > libQt5Widgets.5.dylib 0x011ff64e > QWidgetWindow::event(QEvent*) + 1118 5 libQt5Widgets.5.dylib > 0x01197c8c QApplicationPrivate::notify_helper(QObject*, QEvent*) + > 188 6 libQt5Widgets.5.dylib 0x011a0a73 > QApplication::notify(QObject*, QEvent*) + 1635 7 > libQt5Core.5.dylib 0x0092135c > QCoreApplication::notifyInternal(QObject*, QEvent*) + 108 8 > libQt5Gui.5.dylib 0x00cf0eaa > QGuiApplicationPrivate::processActivatedEvent(QWindowSystemInterfacePrivate > ::ActivatedWindowEvent*) + 298 9 libQt5Gui.5.dylib > 0x00cf8854 > QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePriv > ate::WindowSystemEvent*) + 1908 10 libQt5Gui.5.dylib > 0x00cde5a4 > QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEv > entsFlag>) + 52 11 libqcocoa.dylib 0x05f9a5cf > QCocoaEventDispatcherPrivate::postedEventsSourceCallback(void*) + 31 12 > com.apple.CoreFoundation 0x991dee3f > __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 15 13 > com.apple.CoreFoundation 0x991cfccb __CFRunLoopDoSources0 > + 235 14 com.apple.CoreFoundation 0x991cf3ce > __CFRunLoopRun + 1022 15 com.apple.CoreFoundation > 0x991ced5a CFRunLoopRunSpecific + 394 16 com.apple.CoreFoundation > 0x991cebbb CFRunLoopRunInMode + 123 17 > com.apple.HIToolbox 0x98c1ce2d RunCurrentEventLoopInMode + 259 > 18 com.apple.HIToolbox 0x98c1ca47 ReceiveNextEventCommon + > 163 19 com.apple.HIToolbox 0x98c1c98d > _BlockUntilNextEventMatchingListInModeWithFilter + 92 20 > com.apple.AppKit 0x902be5a9 _DPSNextEvent + 1602 21 > com.apple.AppKit 0x902bdad0 -[NSApplication > nextEventMatchingMask:untilDate:inMode:dequeue:] + 119 22 > com.apple.AppKit 0x9063beac -[NSApplication > _realDoModalLoop:peek:] + 828 23 com.apple.AppKit > 0x9063bb5d -[NSApplication _doModalLoop:peek:] + 209 24 > com.apple.AppKit 0x90679efd -[NSApplication > runModalSession:] + 118 25 libqcocoa.dylib > 0x05f9ad3f > QCocoaEventDispatcher::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) > + 1871 26 libQt5Core.5.dylib 0x0091ffb7 > QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) + 39 27 > libQt5Core.5.dylib 0x009205ef > QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) + 207 28 > libQt5Widgets.5.dylib 0x013a9883 QDialog::exec() + 547 > > (lldb) register read > General Purpose Registers: > eax = 0x00000000 > ebx = 0x00cd5414 > ecx = 0xffffffff > edx = 0xbfffc3bc > edi = 0x00000000 > esi = 0xbfffc46c > ebp = 0xbfffc3c8 > esp = 0xbfffc390 > ss = 0x00000023 > eflags = 0x00210286 > eip = 0x00cd5418 > cs = 0x0000001b > ds = 0x00000023 > es = 0x00000023 > fs = 0x00000000 > gs = 0x0000000f > > (lldb) di -f > libQt5Gui.5.dylib`QAccessible::registerAccessibleInterface(QAccessibleInterf > ace*): 0xcd5400: pushl %ebp > 0xcd5401: movl %esp, %ebp > 0xcd5403: subl $56, %esp > 0xcd5406: movl %ebx, -12(%ebp) > 0xcd5409: movl %esi, -8(%ebp) > 0xcd540c: movl %edi, -4(%ebp) > 0xcd540f: calll 0xcd5414 ; > QAccessible::registerAccessibleInterface(QAccessibleInterface*) + 20 > 0xcd5414: popl %ebx > 0xcd5415: movl 8(%ebp), %edi > -> 0xcd5418: movl (%edi), %eax > 0xcd541a: movl 12(%eax), %eax > 0xcd541d: movl %edi, (%esp) > 0xcd5420: calll *%eax > 0xcd5422: movl %eax, %esi > 0xcd5424: movl 3761368(%ebx), %eax > 0xcd542a: testl %eax, %eax > 0xcd542c: jns 0xcd544f ; > QAccessible::registerAccessibleInterface(QAccessibleInterface*) + 79 > 0xcd542e: movl %edi, 8(%esp) > 0xcd5432: movl %esi, 4(%esp) > 0xcd5436: movl 3761440(%ebx), %eax > 0xcd543c: movl %eax, (%esp) > 0xcd543f: calll 0xcd8a60 ; > QAccessibleCache::insert(QObject*, QAccessibleInterface*) const 0xcd5444: > movl -12(%ebp), %ebx > 0xcd5447: movl -8(%ebp), %esi > 0xcd544a: movl -4(%ebp), %edi > 0xcd544d: leave > 0xcd544e: ret > > Stanislav Kolář | Research & Development > Kerio Technologies > Anglické nábřeží 1, 301 00 Plzeň > Tel: +420 377 338 901 > > Social collaboration reinvented. > http://www.samepage.io -- Best regards, Frederik Gladhorn Senior Software Engineer - Digia, Qt Visit us on: http://qt.digia.com _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
