[Konversation-devel] [konversation] [Bug 314082] Crash while using mouse scroll wheel

[Hebert]

https://bugs.kde.org/show_bug.cgi?id=314082

--- Comment #4 from Hebert <hebert.soares at gmail.com> ---
Downloaded konversation from git and compiled version 1.4-master #4212
Qt is already 4.8.4.
I'm still able to reproduce it, although the backtrace changed a little bit.
You can see the application crashed while trying to process a mouse
QWheelEvent.
Although it looks more like a Qt/KDE problem than konversation itself, I'm only
able to trigger this crash using konversation.


Core was generated by `/usr/local/bin/konversation -caption Konversation --icon
konversation'.
Program terminated with signal 11, Segmentation fault.
#0  0x454dd050 in QTabWidget::count (this=0x9148870) at
widgets/qtabwidget.cpp:1152
1152        return d->tabs->count();

Thread 1 (Thread 0xb77239c0 (LWP 16997)):
#0  0x454dd050 in QTabWidget::count (this=0x9148870) at
widgets/qtabwidget.cpp:1152
        d = 0x9139020
#1  0x42a52d5e in KTabWidget::Private::isEmptyTabbarSpace (this=0x91383d8,
point=...) at /usr/src/debug/kdelibs-4.9.5/kdeui/widgets/ktabwidget.cpp:87
No locals.
#2  0x42a52f67 in KTabWidget::wheelEvent (this=0x9148870, event=0xbf76940c) at
/usr/src/debug/kdelibs-4.9.5/kdeui/widgets/ktabwidget.cpp:471
No locals.
#3  0x45052e0b in QWidget::event (this=0x9148870, event=0xbf76940c) at
kernel/qwidget.cpp:8394
No locals.
#4  0x454ddb16 in QTabWidget::event (this=0x9148870, ev=0xbf76940c) at
widgets/qtabwidget.cpp:1069
No locals.
#5  0x44ff906c in QApplicationPrivate::notify_helper (this=0x900ca40,
receiver=0x9148870, e=0xbf76940c) at kernel/qapplication.cpp:4562
        consumed = <optimized out>
#6  0x44ffe267 in QApplication::notify (this=0xbf76940c, receiver=0x9139f30,
e=0xbf76991c) at kernel/qapplication.cpp:4160
        we = {<QInputEvent> = {<QEvent> = {_vptr.QEvent = 0x45976018 <vtable
for QWheelEvent+8>, static staticMetaObject = {d = {superdata = 0x0, stringdata
= 0x421ff560 <qt_meta_stringdata_QEvent> "QEvent", data = 0x421fff60
<qt_meta_data_QEvent>, extradata = 0x0}}, d = 0x0, t = 31, posted = 0, spont =
0, m_accept = 1, reserved = 0}, modState = {i = 0}}, p = {xp = 197, yp =
2526330}, g = {xp = 202, yp = 821}, d = 120, mouseState = {i = 0}, o =
Qt::Horizontal}
        w = 0x9148870
        relpos = {xp = 197, yp = 2526330}
        eventAccepted = false
        res = true
#7  0x42952a82 in KApplication::notify (this=0xbff665d0, receiver=0x9139f30,
event=0xbf76991c) at
/usr/src/debug/kdelibs-4.9.5/kdeui/kernel/kapplication.cpp:311
No locals.
#8  0x4210408e in QCoreApplication::notifyInternal (this=0xbff665d0,
receiver=0x9139f30, event=0xbf76991c) at kernel/qcoreapplication.cpp:946
        threadData = 0x8c0fa18
        returnValue = <optimized out>
        result = false
        cbdata = {0x9139f30, 0xbf76991c, 0xbf769563}
        d = <optimized out>
#9  0x42a52fb4 in sendEvent (event=0xbf76991c, receiver=<optimized out>) at
/usr/include/QtCore/qcoreapplication.h:231
No locals.
#10 wheelEvent (event=0xbf76991c, this=0x9148870) at
/usr/src/debug/kdelibs-4.9.5/kdeui/widgets/ktabwidget.cpp:472
No locals.
#11 KTabWidget::wheelEvent (this=0x9148870, event=0xbf76991c) at
/usr/src/debug/kdelibs-4.9.5/kdeui/widgets/ktabwidget.cpp:469
No locals.
#12 0x45052e0b in QWidget::event (this=0x9148870, event=0xbf76991c) at
kernel/qwidget.cpp:8394
No locals.

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