[PyKDE] Segmentation fault with latest snapshot of sip & PyQt

[Gordon Tyler]

On June 1, 2003 04:35 pm, Phil Thompson wrote:
> It works fine for me. What version did it last work for you? A gdb
> backtrace would be useful.

I was previously using sip 3.6 and PyQt 3.6.

Here's the gdb backtrace for examples3/addressbook.py:

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 16384 (LWP 5568)]
0x400f9a93 in __dynamic_cast () from /usr/lib/libstdc++.so.5
(gdb) bt
#0  0x400f9a93 in __dynamic_cast () from /usr/lib/libstdc++.so.5
#1  0x414b561f in HighColorStyle::eventFilter ()
   from /usr/lib/kde3/plugins/styles/highcolor.so
#2  0x4048cb10 in QObject::activate_filters () from /usr/lib/libqt-mt.so.3
#3  0x4048c9f1 in QObject::event () from /usr/lib/libqt-mt.so.3
#4  0x404b9375 in QWidget::event () from /usr/lib/libqt-mt.so.3
#5  0x411b3341 in sipQPushButton::event (this=0x82c8a90, a0=0x82c9758)
    at sipqtQRadioButton.cpp:3382
#6  0x4043c4da in QApplication::internalNotify () from /usr/lib/libqt-mt.so.3
#7  0x4043c2e4 in QApplication::notify () from /usr/lib/libqt-mt.so.3
#8  0x413fabb4 in sipQApplication::notify (this=0x824a5f8, a0=0x82c8a90,
    a1=0x82c9758) at sipqtQApplication.cpp:221
#9  0x4043d1bd in QApplication::sendPostedEvents () from 
/usr/lib/libqt-mt.so.3
#10 0x404b8e1f in QWidget::polish () from /usr/lib/libqt-mt.so.3
#11 0x411b46ee in sipQPushButton::polish (this=0x82c8a90)
    at sipqtQRadioButton.cpp:3709
#12 0x4055b52b in QPushButton::sizeHint () from /usr/lib/libqt-mt.so.3
#13 0x411b9f7e in sipDo_QPushButton_sizeHint (sipThisObj=0x82cfbb0,
    sipArgs=0x810c0cc) at sipqtQPushButton.cpp:2818
#14 0x080d465a in PyCFunction_Call ()
#15 0x080761be in Py_MakePendingCalls ()
#16 0x08076ba7 in PyEval_EvalCodeEx ()
#17 0x080779eb in PyEval_CallObjectWithKeywords ()
#18 0x08076119 in Py_MakePendingCalls ()
#19 0x08076ba7 in PyEval_EvalCodeEx ()
#20 0x080c8829 in PyStaticMethod_New ()
#21 0x080b664c in PyObject_Call ()
#22 0x080bd2c0 in PyMethod_Fini ()
#23 0x080b664c in PyObject_Call ()
#24 0x08077813 in PyEval_CallObjectWithKeywords ()
#25 0x080b808a in PyInstance_New ()
#26 0x080b664c in PyObject_Call ()
#27 0x08077a87 in PyEval_CallObjectWithKeywords ()
#28 0x080760a0 in Py_MakePendingCalls ()
#29 0x08076ba7 in PyEval_EvalCodeEx ()
#30 0x080779eb in PyEval_CallObjectWithKeywords ()
#31 0x08076119 in Py_MakePendingCalls ()
#32 0x08076ba7 in PyEval_EvalCodeEx ()
#33 0x080c8829 in PyStaticMethod_New ()
#34 0x080b664c in PyObject_Call ()
#35 0x080bd2c0 in PyMethod_Fini ()
#36 0x080b664c in PyObject_Call ()
#37 0x08077813 in PyEval_CallObjectWithKeywords ()
#38 0x080b808a in PyInstance_New ()
#39 0x080b664c in PyObject_Call ()
#40 0x08077a87 in PyEval_CallObjectWithKeywords ()
#41 0x080760a0 in Py_MakePendingCalls ()
#42 0x08076ba7 in PyEval_EvalCodeEx ()
#43 0x08078e06 in PyEval_EvalCode ()
#44 0x0809c0ad in PyRun_FileExFlags ()
#45 0x0809b993 in PyRun_SimpleFileExFlags ()
#46 0x080532be in Py_Main ()
#47 0x08052e7f in main ()
#48 0x4015ea51 in __libc_start_main () from /lib/libc.so.6

Seeing as how the KDE HighColor style plugin was the last library involved, I 
just tried changing the Qt style from HighColor to Windows using qtconfig and 
now addressbook.py runs without crashing. Keramik also works, but B3 and 
Default don't, probably because they're based on the HighColor plugin and 
Keramik is not.

Ciao,
Gordon