[PyQt] assertion failure in sip

[Erik Janssens]

Hi,

I'm seeing an assertion failure in sip, stacktrace
attached.

It happens consistently, but only after long stress
tests of a large application.

Any suggestions on what might be causing this
failure, so I can try to isolate the case ?

Thanks,

Erik
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Program terminated with signal 11, Segmentation fault.
#0  0xb56623d6 in sip_api_is_py_method (gil=0xbfa65e08, pymc=0xc4ebde7 "", sipSelf=0x1057092c, cname=0x0, mname=0xb6c21297 "changeEvent") at siplib.c:7598
7598	    assert(PyTuple_Check(mro));
(gdb) 
(gdb) 
(gdb) 
(gdb) 
(gdb) 
(gdb) bt
#0  0xb56623d6 in sip_api_is_py_method (gil=0xbfa65e08, pymc=0xc4ebde7 "", sipSelf=0x1057092c, cname=0x0, mname=0xb6c21297 "changeEvent") at siplib.c:7598
#1  0xb6bf762c in sipQWidget::changeEvent (this=0xc4ebdb0, a0=0xc164920) at sipQtGuiQWidget.cpp:967
#2  0xb5b3a514 in QWidget::event (this=0xc4ebdb0, event=0xc164920) at kernel/qwidget.cpp:8529
#3  0xb6bf6425 in sipQWidget::event (this=0xc4ebdb0, a0=0xc164920) at sipQtGuiQWidget.cpp:473
#4  0xb5addb26 in QApplicationPrivate::notify_helper (this=0xa41a618, receiver=0xc4ebdb0, e=0xc164920) at kernel/qapplication.cpp:4462
#5  0xb5add865 in QApplication::notify (this=0xa260fd0, receiver=0xc4ebdb0, e=0xc164920) at kernel/qapplication.cpp:4427
#6  0xb6ba6af2 in sipQApplication::notify (this=0xa260fd0, a0=0xc4ebdb0, a1=0xc164920) at sipQtGuiQApplication.cpp:312
#7  0xb57eaf9e in QCoreApplication::notifyInternal (this=0xa260fd0, receiver=0xc4ebdb0, event=0xc164920) at kernel/qcoreapplication.cpp:731
#8  0xb5acfab5 in QCoreApplication::sendEvent (receiver=0xc4ebdb0, event=0xc164920) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#9  0xb57ebf92 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0xa349770) at kernel/qcoreapplication.cpp:1372
#10 0xb57ebc89 in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1265
#11 0xb5b93b7e in QCoreApplication::sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#12 0xb5b9e90c in QEventDispatcherX11::processEvents (this=0xa34db70, flags=...) at kernel/qeventdispatcher_x11.cpp:75
#13 0xb57eb397 in QCoreApplication::processEvents (flags=...) at kernel/qcoreapplication.cpp:923
#14 0xb519d577 in meth_QCoreApplication_processEvents (sipArgs=0xb748b02c, sipKwds=0x0) at sipQtCoreQCoreApplication.cpp:667
#15 0xb7700ed8 in PyCFunction_Call (func=0xeefb84c, arg=0xb748b02c, kw=0x0) at Objects/methodobject.c:85