Details
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Bug
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Resolution: Out of scope
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Not Evaluated
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None
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4.7.2
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None
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af617c319772a34115d0c4d802f25a807cb43065
Description
Qt Designer segfaults when closing the "Edit Combobox" dialog (by any means) when using a GUI style with transparency enabled. I can reproduce with both Oxygen Transparent (https://projects.kde.org/projects/playground/artwork/oxygen-transparent) and QtCurve (http://kde-look.org/content/show.php?content=40492) when they have opacity < 100%. If they have opacity at 100%, there is no segfault and ComboBox editing works as expected.
To reproduce:
1. Use a GUI style with transparency enabled
2. In Qt Designer, create a new dialog
3. Add a ComboBox to the form
4. Right-click the ComboBox and select "Edit items..."
5. Close the "Edit Combobox" dialog (via Ok or Cancel buttons, or Esc, etc)
Here's the relevant output from gdb:
[Thread 0x7fffd6de0700 (LWP 10449) exited] Program received signal SIGSEGV, Segmentation fault. 0x00007ffff646bd0f in QWidget::testAttribute_helper (this=0x7fffffffb6e0, attribute=Qt::WA_WState_Created) at kernel/qwidget.cpp:10870 10870 kernel/qwidget.cpp: No such file or directory. in kernel/qwidget.cpp (gdb) bt #0 0x00007ffff646bd0f in QWidget::testAttribute_helper (this=0x7fffffffb6e0, attribute=Qt::WA_WState_Created) at kernel/qwidget.cpp:10870 #1 0x00007fffec713491 in ?? () from /usr/lib/kde4/plugins/styles/qtcurve.so #2 0x00007fffec725588 in ?? () from /usr/lib/kde4/plugins/styles/qtcurve.so #3 0x00007ffff5c1f1c9 in QObject::event (this=0x6bc1f0, e=<value optimised out>) at kernel/qobject.cpp:1190 #4 0x00007ffff64299e4 in QApplicationPrivate::notify_helper (this=0x66fa00, receiver=0x6bc1f0, e=0x7fffffffdec0) at kernel/qapplication.cpp:4462 #5 0x00007ffff642e3aa in QApplication::notify (this=<value optimised out>, receiver=0x6bc1f0, e=0x7fffffffdec0) at kernel/qapplication.cpp:4341 #6 0x00007ffff5c0b49c in QCoreApplication::notifyInternal (this= 0x7fffffffe180, receiver=0x6bc1f0, event=0x7fffffffdec0) at kernel/qcoreapplication.cpp:731 #7 0x00007ffff5c38f12 in sendEvent (this=0x674c10) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215 #8 QTimerInfoList::activateTimers (this=0x674c10) at kernel/qeventdispatcher_unix.cpp:604 #9 0x00007ffff5c35cf4 in timerSourceDispatch (source=<value optimised out>) at kernel/qeventdispatcher_glib.cpp:184 #10 0x00007ffff4197bcd in g_main_dispatch (context=0x673ce0) at /build/buildd/glib2.0-2.28.3/./glib/gmain.c:2440 #11 g_main_context_dispatch (context=0x673ce0) at /build/buildd/glib2.0-2.28.3/./glib/gmain.c:3013 #12 0x00007ffff41983a8 in g_main_context_iterate (context=0x673ce0, block=<value optimised out>, dispatch=1, self=<value optimised out>) at /build/buildd/glib2.0-2.28.3/./glib/gmain.c:3091 #13 0x00007ffff4198639 in g_main_context_iteration (context=0x673ce0, may_block=1) at /build/buildd/glib2.0-2.28.3/./glib/gmain.c:3154 #14 0x00007ffff5c363ef in QEventDispatcherGlib::processEvents (this=0x671090, flags=<value optimised out>) at kernel/qeventdispatcher_glib.cpp:422 #15 0x00007ffff64d0dee in QGuiEventDispatcherGlib::processEvents ( this=<value optimised out>, flags=<value optimised out>) at kernel/qguieventdispatcher_glib.cpp:204 #16 0x00007ffff5c0a882 in QEventLoop::processEvents ( this=<value optimised out>, flags=...) at kernel/qeventloop.cpp:149 #17 0x00007ffff5c0aabc in QEventLoop::exec (this=0x7fffffffe130, flags=...) at kernel/qeventloop.cpp:201 #18 0x00007ffff5c0eecb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008 #19 0x000000000042964f in main (argc=1, argv=0x7fffffffe2b8) at main.cpp:57