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segfault on dialog "cancel" after calling QSpinBox.setValue() from GammaRay #9

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ydirson opened this issue Jan 26, 2012 · 4 comments
Closed

segfault on dialog "cancel" after calling QSpinBox.setValue() from GammaRay #9

ydirson opened this issue Jan 26, 2012 · 4 comments

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@ydirson
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ydirson commented Jan 26, 2012

Seen with 1.1.0, built on a Debian testing upgraded today before building gammaray.

The app to look at though gammaray is https://alioth.debian.org/projects/omaha/, at commit
http://anonscm.debian.org/gitweb/?p=omaha/omaha.git;a=commit;h=30ef5e94c98ccd18ccd2eae9dd5cbd2d420d053b

To reproduce:

  • launch ./scripts/omaha --toolkit Qt4
  • attach gammaray
  • select "Checkers", and menu Main/Play

From gammaray:

  • browse widgets until finding the "Board Size" QSpinBox in the QDialog
  • call setValue(10) on it

Hit cancel in the dialog:
=> omaha terminates with "Segmentation fault"

Gammaray cannot attach if python is run under gdb, and a corefile does not get properly decoded by gdb. Any hint to get more precise info ?
@aholza
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aholza commented Jan 26, 2012

Can you try startup method?

  • launch gammaray ./scripts/omaha --toolkit Qt4

Gammaray uses gdb to attach to a application, so thats why it cannot be easily used. There is a code hack to get it workiing with gdb, but this needs an answer from a linux expert. But when you use the startup method, you can use gdb.

@milianw
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milianw commented Jan 26, 2012

I have no idea whether this work with python scripts, but you could try this (on linux at least):

GAMMARAY_GDB=1 gammaray ./scripts/omaha --toolkit Qt4

this should start the latter in GDB and should give the opportunity to get a proper backtrace etc.

@ydirson
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ydirson commented Jan 26, 2012

On Thu, Jan 26, 2012 at 01:39:40PM -0800, Milian Wolff wrote:

I have no idea whether this work with python scripts, but you could try this (on linux at least):

GAMMARAY_GDB=1 gammaray ./scripts/omaha --toolkit Qt4

this should start the latter in GDB and should give the opportunity to get a proper backtrace etc.

Great!

GAMMARAY_GDB=1 .../gammaray python ./scripts/omaha --toolkit Qt4

Here it is, hope this helps:

#0 0x00007ffff5404040 in QLayout::parentWidget() const () from /usr/lib/libQtGui.so.4
#1 0x00007ffff7afdbf1 in GammaRay::WidgetTreeModel::data (this=0xfbc910, index=..., role=9) at /work/yann/softs/GammaRay/tools/widgetinspector/widgettreemodel.cpp:45
#2 0x00007ffff59632fc in QSortFilterProxyModel::data(QModelIndex const&, int) const () from /usr/lib/libQtGui.so.4
#3 0x00007ffff5985817 in QStyledItemDelegate::initStyleOption(QStyleOptionViewItem_, QModelIndex const&) const () from /usr/lib/libQtGui.so.4
#4 0x00007ffff5986dc6 in QStyledItemDelegate::sizeHint(QStyleOptionViewItem const&, QModelIndex const&) const () from /usr/lib/libQtGui.so.4
#5 0x00007ffff591c64b in QTreeView::indexRowSizeHint(QModelIndex const&) const () from /usr/lib/libQtGui.so.4
#6 0x00007ffff591feb9 in QTreeViewPrivate::itemHeight(int) const () from /usr/lib/libQtGui.so.4
#7 0x00007ffff5920153 in QTreeViewPrivate::updateScrollBars() () from /usr/lib/libQtGui.so.4
#8 0x00007ffff592050f in QTreeView::updateGeometries() () from /usr/lib/libQtGui.so.4
#9 0x00007ffff58df8f9 in QAbstractItemView::doItemsLayout() () from /usr/lib/libQtGui.so.4
#10 0x00007ffff5927844 in QTreeView::doItemsLayout() () from /usr/lib/libQtGui.so.4
#11 0x00007ffff59201e4 in QTreeViewPrivate::updateScrollBars() () from /usr/lib/libQtGui.so.4
#12 0x00007ffff592a5ce in QTreeView::scrollTo(QModelIndex const&, QAbstractItemView::ScrollHint) () from /usr/lib/libQtGui.so.4
#13 0x00007ffff58e8b72 in QAbstractItemView::currentChanged(QModelIndex const&, QModelIndex const&) () from /usr/lib/libQtGui.so.4
#14 0x00007ffff591d691 in QTreeView::currentChanged(QModelIndex const&, QModelIndex const&) () from /usr/lib/libQtGui.so.4
#15 0x00007ffff58e42a3 in QAbstractItemView::qt_metacall(QMetaObject::Call, int, void__) () from /usr/lib/libQtGui.so.4
#16 0x00007ffff592ae05 in QTreeView::qt_metacall(QMetaObject::Call, int, void__) () from /usr/lib/libQtGui.so.4
#17 0x00007ffff601beba in QMetaObject::activate(QObject_, QMetaObject const_, int, void__) () from /usr/lib/libQtCore.so.4
#18 0x00007ffff593434a in QItemSelectionModel::currentChanged(QModelIndex const&, QModelIndex const&) () from /usr/lib/libQtGui.so.4
#19 0x00007ffff5934440 in QItemSelectionModel::setCurrentIndex(QModelIndex const&, QFlagsQItemSelectionModel::SelectionFlag) () from /usr/lib/libQtGui.so.4
#20 0x00007ffff58dd29e in QAbstractItemView::setCurrentIndex(QModelIndex const&) () from /usr/lib/libQtGui.so.4
#21 0x00007ffff58e9928 in QAbstractItemView::rowsAboutToBeRemoved(QModelIndex const&, int, int) () from /usr/lib/libQtGui.so.4
#22 0x00007ffff5922f0f in QTreeView::rowsAboutToBeRemoved(QModelIndex const&, int, int) () from /usr/lib/libQtGui.so.4
#23 0x00007ffff58e426f in QAbstractItemView::qt_metacall(QMetaObject::Call, int, void__) () from /usr/lib/libQtGui.so.4
#24 0x00007ffff592ae05 in QTreeView::qt_metacall(QMetaObject::Call, int, void__) () from /usr/lib/libQtGui.so.4
#25 0x00007ffff601beba in QMetaObject::activate(QObject_, QMetaObject const_, int, void__) () from /usr/lib/libQtCore.so.4
#26 0x00007ffff6064834 in QAbstractItemModel::rowsAboutToBeRemoved(QModelIndex const&, int, int) () from /usr/lib/libQtCore.so.4
#27 0x00007ffff60037e8 in QAbstractItemModel::beginRemoveRows(QModelIndex const&, int, int) () from /usr/lib/libQtCore.so.4
#28 0x00007ffff596528d in QSortFilterProxyModelPrivate::remove_proxy_interval(QVector&, QVector&, int, int, QModelIndex const&, Qt::Orientation, bool) ()
from /usr/lib/libQtGui.so.4
#29 0x00007ffff5969d3a in QSortFilterProxyModelPrivate::remove_source_items(QVector&, QVector&, QVector const&, QModelIndex const&, Qt::Orientation, bool) ()
from /usr/lib/libQtGui.so.4
#30 0x00007ffff596b704 in QSortFilterProxyModelPrivate::source_items_about_to_be_removed(QModelIndex const&, int, int, Qt::Orientation) () from /usr/lib/libQtGui.so.4
#31 0x00007ffff596b9ec in QSortFilterProxyModel::qt_metacall(QMetaObject::Call, int, void__) () from /usr/lib/libQtGui.so.4
#32 0x00007ffff7b0433b in KRecursiveFilterProxyModel::qt_metacall (this=0xf9f630, c=QMetaObject::InvokeMetaMethod, id=38, a=0x7fffffff9ca0)
at /work/yann/softs/GammaRay/build/krecursivefilterproxymodel.moc:78
#33 0x00007ffff6010510 in QMetaMethod::invoke(QObject, Qt::ConnectionType, QGenericReturnArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument) const () from /usr/lib/libQtCore.so.4
#34 0x00007ffff60126d0 in QMetaObject::invokeMethod(QObject, char const, Qt::ConnectionType, QGenericReturnArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument) () from /usr/lib/libQtCore.so.4
#35 0x00007ffff7aa3067 in QMetaObject::invokeMethod (obj=0xf9f630, member=0x7ffff7b2ada4 "_q_sourceRowsAboutToBeRemoved", type=Qt::DirectConnection, val0=..., val1=..., val2=...,
val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at /usr/include/qt4/QtCore/qobjectdefs.h:410
#36 0x00007ffff7b0527b in KRecursiveFilterProxyModelPrivate::invokeRowsAboutToBeRemoved (this=0xfbc8f0, source_parent=..., start=0, end=0)
at /work/yann/softs/GammaRay/3rdparty/kde/krecursivefilterproxymodel.cpp:99
#37 0x00007ffff7b036dc in KRecursiveFilterProxyModelPrivate::sourceRowsAboutToBeRemoved (this=0xfbc8f0, source_parent=..., start=0, end=0)
at /work/yann/softs/GammaRay/3rdparty/kde/krecursivefilterproxymodel.cpp:220
#38 0x00007ffff7b0448f in KRecursiveFilterProxyModel::qt_metacall (this=0xf9f630, _c=QMetaObject::InvokeMetaMethod, id=3, a=0x7fffffffa510)
at /work/yann/softs/GammaRay/build/krecursivefilterproxymodel.moc:86
#39 0x00007ffff601beba in QMetaObject::activate(QObject, QMetaObject const, int, void**) () from /usr/lib/libQtCore.so.4
#40 0x00007ffff6064834 in QAbstractItemModel::rowsAboutToBeRemoved(QModelIndex const&, int, int) () from /usr/lib/libQtCore.so.4
#41 0x00007ffff60037e8 in QAbstractItemModel::beginRemoveRows(QModelIndex const&, int, int) () from /usr/lib/libQtCore.so.4
#42 0x00007ffff596528d in QSortFilterProxyModelPrivate::remove_proxy_interval(QVector&, QVector&, int, int, QModelIndex const&, Qt::Orientation, bool) ()
from /usr/lib/libQtGui.so.4
#43 0x00007ffff5969d3a in QSortFilterProxyModelPrivate::remove_source_items(QVector&, QVector&, QVector const&, QModelIndex const&, Qt::Orientation, bool) ()
from /usr/lib/libQtGui.so.4
#44 0x00007ffff596b704 in QSortFilterProxyModelPrivate::source_items_about_to_be_removed(QModelIndex const&, int, int, Qt::Orientation) () from /usr/lib/libQtGui.so.4
#45 0x00007ffff596b9ec in QSortFilterProxyModel::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libQtGui.so.4
#46 0x00007ffff7afddbe in GammaRay::WidgetTreeModel::qt_metacall (this=0xfbc910, _c=QMetaObject::InvokeMetaMethod, id=38, a=0x7fffffffa850)
at /work/yann/softs/GammaRay/build/widgettreemodel.moc:64
#47 0x00007ffff601beba in QMetaObject::activate(QObject, QMetaObject const, int, void**) () from /usr/lib/libQtCore.so.4
#48 0x00007ffff6064834 in QAbstractItemModel::rowsAboutToBeRemoved(QModelIndex const&, int, int) () from /usr/lib/libQtCore.so.4
#49 0x00007ffff60037e8 in QAbstractItemModel::beginRemoveRows(QModelIndex const&, int, int) () from /usr/lib/libQtCore.so.4
#50 0x00007ffff7ab4dd7 in GammaRay::ObjectTreeModel::objectRemoved (this=0xde2750, obj=0xf95550) at /work/yann/softs/GammaRay/objecttreemodel.cpp:129
#51 0x00007ffff7ab5577 in GammaRay::ObjectTreeModel::qt_metacall (this=0xde2750, _c=QMetaObject::InvokeMetaMethod, id=1, a=0x7fffffffaa30)
at /work/yann/softs/GammaRay/build/objecttreemodel.moc:77
#52 0x00007ffff601beba in QMetaObject::activate(QObject, QMetaObject const, int, void**) () from /usr/lib/libQtCore.so.4
#53 0x00007ffff7aa2def in GammaRay::Probe::objectDestroyed (this=0xdec210, _t1=0xf95550) at /work/yann/softs/GammaRay/build/probe.moc:179
#54 0x00007ffff7aa1c33 in GammaRay::Probe::objectRemoved (obj=0xf95550) at /work/yann/softs/GammaRay/probe.cpp:481
#55 0x00007ffff7aa2721 in qt_removeObject (obj=0xf95550) at /work/yann/softs/GammaRay/probe.cpp:665
#56 0x00007ffff6020323 in QObject::~QObject() () from /usr/lib/libQtCore.so.4
#57 0x00007ffff54267c1 in QWidget::~QWidget() () from /usr/lib/libQtGui.so.4
#58 0x00007ffff0cb8c51 in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtGui.so
#59 0x00007ffff601ad75 in QObjectPrivate::deleteChildren() () from /usr/lib/libQtCore.so.4
#60 0x00007ffff5426733 in QWidget::~QWidget() () from /usr/lib/libQtGui.so.4
#61 0x00007ffff0de49cd in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtGui.so
#62 0x00007ffff601ad75 in QObjectPrivate::deleteChildren() () from /usr/lib/libQtCore.so.4
#63 0x00007ffff5426733 in QWidget::~QWidget() () from /usr/lib/libQtGui.so.4
#64 0x00007ffff0eba845 in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtGui.so
#65 0x00007ffff0eb1eb2 in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtGui.so
#66 0x00007ffff133c534 in ?? () from /usr/lib/python2.7/dist-packages/sip.so
#67 0x00007ffff133cd39 in ?? () from /usr/lib/python2.7/dist-packages/sip.so
#68 0x0000000000480b2b in subtype_dealloc (self=<QDialog at remote 0x7ffff08e3560>) at ../Objects/typeobject.c:1014
#69 0x00000000004b96ab in PyEval_EvalFrameEx (f=, throwflag=) at ../Python/ceval.c:1137
#70 0x00000000004b9d77 in fast_function (nk=, na=, n=, pp_stack=0x7fffffffaff0, func=<function at remote 0x7ffff1a06500>)
at ../Python/ceval.c:4107
#71 call_function (oparg=, pp_stack=0x7fffffffaff0) at ../Python/ceval.c:4042
#72 PyEval_EvalFrameEx (f=, throwflag=) at ../Python/ceval.c:2666
#73 0x00000000004bfccd in PyEval_EvalCodeEx (co=0x7ffff19e2630, globals=, locals=, args=, argcount=, kws=,
kwcount=5, defs=0x7ffff19fd9a8, defcount=1, closure=0x0) at ../Python/ceval.c:3253
#74 0x000000000044b658 in function_call (func=, arg=
(<Qt4Play(canvas=None, _Parametrizable__initial_params={}, game=<Checkers(_Game__moves=<MoveList(_MoveList__current=0, _MoveList__moves=[], _MoveList__game=<...>) at remote 0x7ffff08e7950>, rowcount=None, whose_turn=None, _Parametrizable__initial_params={...}, boardwidth=None, pieces=[], players=None, boardheight=None, board=None, context={'app': <...>, <type at remote 0xa271b0>: <type at remote 0xee24b0>, <type at remote 0xa205f0>: <type at remote 0x104a460>}, phase='setting up', _Game__listeners=[], outcome={}) at remote 0x7ffff08e7990>, tk=<Qt4(_paramwidget_classes={<type at remote 0xa18c10>: <NotImplementedType at remote 0x84a840>, <type at remote 0xa18260>: <NotImplementedType at remote 0x84a840>, <type at remote 0xa17670>: <type at remote 0xbe3c30>, <type at remote 0xa16b70>: <type at remote 0xbe01b0>, <type at remote 0xa167b0>: <NotImplementedType at remote 0x84a840>, <type at remote 0xa195c0>: <type at remote 0xa269f0>}) at remote 0x7ffff0a0a750>, context={'app': <...>, <type at remote 0xa271b0>: <typ...(truncated), kw=
{'gamedesc': <Plugin(_Plugin__path='./plugins/Games/Checkers.desktop', _Plugin__entry=<DesktopEntry(content={'Desktop Entry': {'Comment': 'A checkers plugin (international rules) for Omaha', 'X-Omaha-DefaultRenderer-SquareBoard': 'CheckeredSquareBoard', 'Name': 'Checkers', 'X-Omaha-DefaultRenderer': 'FullscreenPieceDelegating', 'X-Omaha-Package': 'Omaha.Games.Checkers', 'Comment[fr]': 'Un jeu de dames (r\xc3\xa8gles internationales) pour Omaha', 'X-Omaha-ID': 'Checkers', 'Type': 'X-Omaha-Game', 'Name[fr]': 'Dames', 'Categories': '', 'X-Omaha-Class': 'Checkers'}}, defaultGroup='Desktop Entry', tainted=False, filename='./plugins/Games/Checkers.desktop') at remote 0x7ffff08e0cb0>, _Plugin__usable=True, _Plugin__manager=<PluginManager(_PluginManager__directory='./plugins', _PluginManager__plugin_cache={('./plugins/Games/MiniShogi.desktop', 'X-Omaha-Game', True): <Plugin(_Plugin__path='./plugins/Games/MiniShogi.desktop', _Plugin__entry=<DesktopEntry(content={'Desktop Entry': {'Comment': 'A MiniShogi plugin (japane...(truncated)) at ../Objects/funcobject.c:526
#75 0x000000000041d42a in PyObject_Call (func=<function at remote 0x7ffff1a06410>, arg=, kw=) at ../Objects/abstract.c:2529
#76 0x0000000000432d1b in instancemethod_call (func=<function at remote 0x7ffff1a06410>, arg=
(<Qt4Play(canvas=None, _Parametrizable__initial_params={}, game=<Checkers(_Game__moves=<MoveList(_MoveList__current=0, _MoveList__moves=[], _MoveList__game=<...>) at remote 0x7ffff08e7950>, rowcount=None, whose_turn=None, _Parametrizable__initial_params={...}, boardwidth=None, pieces=[], players=None, boardheight=None, board=None, context={'app': <...>, <type at remote 0xa271b0>: <type at remote 0xee24b0>, <type at remote 0xa205f0>: <type at remote 0x104a460>}, phase='setting up', _Game__listeners=[], outcome={}) at remote 0x7ffff08e7990>, tk=<Qt4(_paramwidget_classes={<type at remote 0xa18c10>: <NotImplementedType at remote 0x84a840>, <type at remote 0xa18260>: <NotImplementedType at remote 0x84a840>, <type at remote 0xa17670>: <type at remote 0xbe3c30>, <type at remote 0xa16b70>: <type at remote 0xbe01b0>, <type at remote 0xa167b0>: <NotImplementedType at remote 0x84a840>, <type at remote 0xa195c0>: <type at remote 0xa269f0>}) at remote 0x7ffff0a0a750>, context={'app': <...>, <type at remote 0xa271b0>: <typ...(truncated), kw=
{'gamedesc': <Plugin(_Plugin__path='./plugins/Games/Checkers.desktop', _Plugin__entry=<DesktopEntry(content={'Desktop Entry': {'Comment': 'A checkers plugin (international rules) for Omaha', 'X-Omaha-DefaultRenderer-SquareBoard': 'CheckeredSquareBoard', 'Name': 'Checkers', 'X-Omaha-DefaultRenderer': 'FullscreenPieceDelegating', 'X-Omaha-Package': 'Omaha.Games.Checkers', 'Comment[fr]': 'Un jeu de dames (r\xc3\xa8gles internationales) pour Omaha', 'X-Omaha-ID': 'Checkers', 'Type': 'X-Omaha-Game', 'Name[fr]': 'Dames', 'Categories': '', 'X-Omaha-Class': 'Checkers'}}, defaultGroup='Desktop Entry', tainted=False, filename='./plugins/Games/Checkers.desktop') at remote 0x7ffff08e0cb0>, _Plugin__usable=True, _Plugin__manager=<PluginManager(_PluginManager__directory='./plugins', _PluginManager__plugin_cache={('./plugins/Games/MiniShogi.desktop', 'X-Omaha-Game', True): <Plugin(_Plugin__path='./plugins/Games/MiniShogi.desktop', _Plugin__entry=<DesktopEntry(content={'Desktop Entry': {'Comment': 'A MiniShogi plugin (japane...(truncated)) at ../Objects/classobject.c:2578
#77 0x000000000041d42a in PyObject_Call (func=<instancemethod at remote 0x7ffff7ef7d20>, arg=, kw=) at ../Objects/abstract.c:2529
#78 0x0000000000483aa3 in slot_tp_init (self=, args=(), kwds=
{'gamedesc': <Plugin(_Plugin__path='./plugins/Games/Checkers.desktop', _Plugin__entry=<DesktopEntry(content={'Desktop Entry': {'Comment': 'A checkers plugin (international rules) for Omaha', 'X-Omaha-DefaultRenderer-SquareBoard': 'CheckeredSquareBoard', 'Name': 'Checkers', 'X-Omaha-DefaultRenderer': 'FullscreenPieceDelegating', 'X-Omaha-Package': 'Omaha.Games.Checkers', 'Comment[fr]': 'Un jeu de dames (r\xc3\xa8gles internationales) pour Omaha', 'X-Omaha-ID': 'Checkers', 'Type': 'X-Omaha-Game', 'Name[fr]': 'Dames', 'Categories': '', 'X-Omaha-Class': 'Checkers'}}, defaultGroup='Desktop Entry', tainted=False, filename='./plugins/Games/Checkers.desktop') at remote 0x7ffff08e0cb0>, _Plugin__usable=True, _Plugin__manager=<PluginManager(_PluginManager__directory='./plugins', _PluginManager__plugin_cache={('./plugins/Games/MiniShogi.desktop', 'X-Omaha-Game', True): <Plugin(_Plugin__path='./plugins/Games/MiniShogi.desktop', _Plugin__entry=<DesktopEntry(content={'Desktop Entry': {'Comment': 'A MiniShogi plugin (japane...(truncated)) at ../Objects/typeobject.c:5661
#79 0x000000000047f071 in type_call (type=, args=(), kwds=
{'gamedesc': <Plugin(_Plugin__path='./plugins/Games/Checkers.desktop', _Plugin__entry=<DesktopEntry(content={'Desktop Entry': {'Comment': 'A checkers plugin (international rules) for Omaha', 'X-Omaha-DefaultRenderer-SquareBoard': 'CheckeredSquareBoard', 'Name': 'Checkers', 'X-Omaha-DefaultRenderer': 'FullscreenPieceDelegating', 'X-Omaha-Package': 'Omaha.Games.Checkers', 'Comment[fr]': 'Un jeu de dames (r\xc3\xa8gles internationales) pour Omaha', 'X-Omaha-ID': 'Checkers', 'Type': 'X-Omaha-Game', 'Name[fr]': 'Dames', 'Categories': '', 'X-Omaha-Class': 'Checkers'}}, defaultGroup='Desktop Entry', tainted=False, filename='./plugins/Games/Checkers.desktop') at remote 0x7ffff08e0cb0>, _Plugin__usable=True, _Plugin__manager=<PluginManager(_PluginManager__directory='./plugins', PluginManager__plugin_cache={('./plugins/Games/MiniShogi.desktop', 'X-Omaha-Game', True): <Plugin(Plugin__path='./plugins/Games/MiniShogi.desktop', Plugin__entry=<DesktopEntry(content={'Desktop Entry': {'Comment': 'A MiniShogi plugin (japane...(truncated)) at ../Objects/typeobject.c:737
#80 0x000000000041d42a in PyObject_Call (func=<type at remote 0xee24b0>, arg=, kw=) at ../Objects/abstract.c:2529
#81 0x00000000004bb1db in ext_do_call (nk=4, na=0, flags=, pp_stack=0x7fffffffb5a0, func=<type at remote 0xee24b0>) at ../Python/ceval.c:4334
#82 PyEval_EvalFrameEx (f=, throwflag=) at ../Python/ceval.c:2705
#83 0x00000000004bfccd in PyEval_EvalCodeEx (co=0x7ffff1a09bb0, globals=, locals=, args=, argcount=, kws=,
kwcount=1, defs=0x0, defcount=0, closure=0x0) at ../Python/ceval.c:3253
#84 0x00000000004b9a5b in fast_function (nk=, na=1, n=, pp_stack=0x7fffffffb790, func=<function at remote 0x7ffff0a0fed8>) at ../Python/ceval.c:4117
#85 call_function (oparg=, pp_stack=0x7fffffffb790) at ../Python/ceval.c:4042
#86 PyEval_EvalFrameEx (f=, throwflag=) at ../Python/ceval.c:2666
#87 0x00000000004bfccd in PyEval_EvalCodeEx (co=0x7ffff1a099b0, globals=, locals=, args=, argcount=, kws=,
kwcount=0, defs=0x0, defcount=0, closure=0x0) at ../Python/ceval.c:3253
#88 0x000000000044b49f in function_call (func=<function at remote 0x7ffff0a0fe60>, arg=
(<Launcher(actionQuit=<QAction at remote 0x7ffff19c2dd0>, pluginlist={<QListWidgetItem at remote 0x7ffff08e3200>: <Plugin(Plugin__path='./plugins/Games/Free.desktop', Plugin__entry=<DesktopEntry(content={'Desktop Entry': {'Comment': 'A dummy Omaha game plugin for testing new boards', 'Name': 'Free play', 'X-Omaha-Package': 'Omaha.Games.Free', 'Comment[fr]': 'Un pseudo jeu pour tester de nouveaux plateaux dans Omaha', 'X-Omaha-ID': 'FreeGame', 'Type': 'X-Omaha-Game', 'Name[fr]': 'Jeu libre', 'Categories': '', 'X-Omaha-Class': 'FreeGame'}}, defaultGroup='Desktop Entry', tainted=False, filename='./plugins/Games/Free.desktop') at remote 0x7ffff08e09e0>, Plugin__usable=True, Plugin__manager=<PluginManager(PluginManager__directory='./plugins', PluginManager__plugin_cache={('./plugins/Games/MiniShogi.desktop', 'X-Omaha-Game', True): <Plugin(Plugin__path='./plugins/Games/MiniShogi.desktop', Plugin__entry=<DesktopEntry(content={'Desktop Entry': {'Comment': 'A MiniShogi plugin (japanese chess on 5x5 board) for ...(truncated), kw=0x0) at ../Objects/funcobject.c:526
#89 0x000000000041d42a in PyObject_Call (func=<function at remote 0x7ffff0a0fe60>, arg=, kw=) at ../Objects/abstract.c:2529
#90 0x0000000000432d1b in instancemethod_call (func=<function at remote 0x7ffff0a0fe60>, arg=
(<Launcher(actionQuit=<QAction at remote 0x7ffff19c2dd0>, pluginlist={<QListWidgetItem at remote 0x7ffff08e3200>: <Plugin(Plugin__path='./plugins/Games/Free.desktop', Plugin__entry=<DesktopEntry(content={'Desktop Entry': {'Comment': 'A dummy Omaha game plugin for testing new boards', 'Name': 'Free play', 'X-Omaha-Package': 'Omaha.Games.Free', 'Comment[fr]': 'Un pseudo jeu pour tester de nouveaux plateaux dans Omaha', 'X-Omaha-ID': 'FreeGame', 'Type': 'X-Omaha-Game', 'Name[fr]': 'Jeu libre', 'Categories': '', 'X-Omaha-Class': 'FreeGame'}}, defaultGroup='Desktop Entry', tainted=False, filename='./plugins/Games/Free.desktop') at remote 0x7ffff08e09e0>, Plugin__usable=True, Plugin__manager=<PluginManager(PluginManager__directory='./plugins', PluginManager__plugin_cache={('./plugins/Games/MiniShogi.desktop', 'X-Omaha-Game', True): <Plugin(Plugin__path='./plugins/Games/MiniShogi.desktop', Plugin__entry=<DesktopEntry(content={'Desktop Entry': {'Comment': 'A MiniShogi plugin (japanese chess on 5x5 board) for ...(truncated), kw=0x0) at ../Objects/classobject.c:2578
#91 0x000000000041d42a in PyObject_Call (func=<instancemethod at remote 0x7ffff7f656e0>, arg=, kw=) at ../Objects/abstract.c:2529
#92 0x00000000004b8da6 in PyEval_CallObjectWithKeywords (func=<instancemethod at remote 0x7ffff7f656e0>, arg=(False,), kw=) at ../Python/ceval.c:3890
#93 0x00007ffff13474e0 in sip_api_invoke_slot () from /usr/lib/python2.7/dist-packages/sip.so
#94 0x00007ffff16c8536 in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so
#95 0x00007ffff16c8830 in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so
#96 0x00007ffff16c8912 in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so
#97 0x00007ffff601beba in QMetaObject::activate(QObject, QMetaObject const, int, void**) () from /usr/lib/libQtCore.so.4
#98 0x00007ffff53d4652 in QAction::triggered(bool) () from /usr/lib/libQtGui.so.4
#99 0x00007ffff53d483f in QAction::activate(QAction::ActionEvent) () from /usr/lib/libQtGui.so.4
#100 0x00007ffff580a539 in QMenuPrivate::activateCausedStack(QList<QPointer > const&, QAction, QAction::ActionEvent, bool) () from /usr/lib/libQtGui.so.4
#101 0x00007ffff5810172 in QMenuPrivate::activateAction(QAction, QAction::ActionEvent, bool) () from /usr/lib/libQtGui.so.4
#102 0x00007ffff0d78c41 in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtGui.so
#103 0x00007ffff542b346 in QWidget::event(QEvent) () from /usr/lib/libQtGui.so.4
#104 0x00007ffff58116db in QMenu::event(QEvent) () from /usr/lib/libQtGui.so.4
#105 0x00007ffff0d7c861 in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtGui.so
#106 0x00007ffff53dac64 in QApplicationPrivate::notify_helper(QObject, QEvent) () from /usr/lib/libQtGui.so.4
#107 0x00007ffff53e03eb in QApplication::notify(QObject, QEvent) () from /usr/lib/libQtGui.so.4
#108 0x00007ffff0ec4695 in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtGui.so
#109 0x00007ffff600928c in QCoreApplication::notifyInternal(QObject, QEvent) () from /usr/lib/libQtCore.so.4
#110 0x00007ffff53dbc32 in QApplicationPrivate::sendMouseEvent(QWidget, QMouseEvent, QWidget, QWidget, QWidget**, QPointer&, bool) () from /usr/lib/libQtGui.so.4
#111 0x00007ffff5458794 in QETWidget::translateMouseEvent(XEvent const) () from /usr/lib/libQtGui.so.4
#112 0x00007ffff5456f1a in QApplication::x11ProcessEvent(XEvent) () from /usr/lib/libQtGui.so.4
#113 0x00007ffff547f252 in x11EventSourceDispatch(GSource, int ()(void), void) () from /usr/lib/libQtGui.so.4
#114 0x00007ffff483c0cf in g_main_dispatch (context=0xa25c70) at /tmp/buildd/glib2.0-2.30.2/./glib/gmain.c:2442
#115 g_main_context_dispatch (context=0xa25c70) at /tmp/buildd/glib2.0-2.30.2/./glib/gmain.c:2998
#116 0x00007ffff483c8c8 in g_main_context_iterate (context=0xa25c70, block=, dispatch=1, self=) at /tmp/buildd/glib2.0-2.30.2/./glib/gmain.c:3076
#117 0x00007ffff483ca99 in g_main_context_iteration (context=0xa25c70, may_block=1) at /tmp/buildd/glib2.0-2.30.2/./glib/gmain.c:3139
#118 0x00007ffff6033e2f in QEventDispatcherGlib::processEvents(QFlagsQEventLoop::ProcessEventsFlag) () from /usr/lib/libQtCore.so.4
#119 0x00007ffff547eeee in QGuiEventDispatcherGlib::processEvents(QFlagsQEventLoop::ProcessEventsFlag) () from /usr/lib/libQtGui.so.4
#120 0x00007ffff6008492 in QEventLoop::processEvents(QFlagsQEventLoop::ProcessEventsFlag) () from /usr/lib/libQtCore.so.4
#121 0x00007ffff600868f in QEventLoop::exec(QFlagsQEventLoop::ProcessEventsFlag) () from /usr/lib/libQtCore.so.4
#122 0x00007ffff600c837 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#123 0x00007ffff0e9a9ae in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtGui.so
#124 0x00000000004b9589 in call_function (oparg=, pp_stack=0x7fffffffd610) at ../Python/ceval.c:4021
#125 PyEval_EvalFrameEx (f=, throwflag=) at ../Python/ceval.c:2666
#126 0x00000000004b9d77 in fast_function (nk=, na=, n=, pp_stack=0x7fffffffd750, func=<function at remote 0x7ffff0a0f8c0>)
at ../Python/ceval.c:4107
#127 call_function (oparg=, pp_stack=0x7fffffffd750) at ../Python/ceval.c:4042
#128 PyEval_EvalFrameEx (f=, throwflag=) at ../Python/ceval.c:2666
#129 0x00000000004bfccd in PyEval_EvalCodeEx (co=0x7ffff7f03a30, globals=, locals=, args=, argcount=, kws=,
kwcount=0, defs=0x0, defcount=0, closure=0x0) at ../Python/ceval.c:3253
#130 0x00000000004c07a2 in PyEval_EvalCode (co=, globals=, locals=) at ../Python/ceval.c:667
#131 0x00000000004dfa02 in run_mod (mod=, filename=, globals=
{'argparse': <module at remote 0x7ffff7e55248>, 'unknownargs': [], '__icons_dir': './icons', 'importlib': <module at remote 0x7ffff7ebf830>, 'Core': <module at remote 0x7ffff7ebfcc8>, 'builtins': <module at remote 0x7ffff7f7fad0>, 'file': './scripts/omaha', 'args': <Namespace(toolkit='Qt4') at remote 0x7ffff7e2bf90>, 'l': <Launcher(actionQuit=<QAction at remote 0x7ffff19c2dd0>, pluginlist={<QListWidgetItem at remote 0x7ffff08e3200>: <Plugin(_Plugin__path='./plugins/Games/Free.desktop', _Plugin__entry=<DesktopEntry(content={'Desktop Entry': {'Comment': 'A dummy Omaha game plugin for testing new boards', 'Name': 'Free play', 'X-Omaha-Package': 'Omaha.Games.Free', 'Comment[fr]': 'Un pseudo jeu pour tester de nouveaux plateaux dans Omaha', 'X-Omaha-ID': 'FreeGame', 'Type': 'X-Omaha-Game', 'Name[fr]': 'Jeu libre', 'Categories': '', 'X-Omaha-Class': 'FreeGame'}}, defaultGroup='Desktop Entry', tainted=False, filename='./plugins/Games/Free.desktop') at remote 0x7ffff08e09e0>, _Plugin__usable=True, _Plugin__ma...(truncated), locals=
{'argparse': <module at remote 0x7ffff7e55248>, 'unknownargs': [], '__icons_dir': './icons', 'importlib': <module at remote 0x7ffff7ebf830>, 'Core': <module at remote 0x7ffff7ebfcc8>, 'builtins': <module at remote 0x7ffff7f7fad0>, 'file': './scripts/omaha', 'args': <Namespace(toolkit='Qt4') at remote 0x7ffff7e2bf90>, 'l': <Launcher(actionQuit=<QAction at remote 0x7ffff19c2dd0>, pluginlist={<QListWidgetItem at remote 0x7ffff08e3200>: <Plugin(_Plugin__path='./plugins/Games/Free.desktop', _Plugin__entry=<DesktopEntry(content={'Desktop Entry': {'Comment': 'A dummy Omaha game plugin for testing new boards', 'Name': 'Free play', 'X-Omaha-Package': 'Omaha.Games.Free', 'Comment[fr]': 'Un pseudo jeu pour tester de nouveaux plateaux dans Omaha', 'X-Omaha-ID': 'FreeGame', 'Type': 'X-Omaha-Game', 'Name[fr]': 'Jeu libre', 'Categories': '', 'X-Omaha-Class': 'FreeGame'}}, defaultGroup='Desktop Entry', tainted=False, filename='./plugins/Games/Free.desktop') at remote 0x7ffff08e09e0>, _Plugin__usable=True, _Plugin__ma...(truncated), flags=, arena=) at ../Python/pythonrun.c:1346
#132 0x00000000004e0594 in PyRun_FileExFlags (fp=0x974eb0, filename=0x7fffffffdf2f "./scripts/omaha", start=, globals=
{'argparse': <module at remote 0x7ffff7e55248>, 'unknownargs': [], '__icons_dir': './icons', 'importlib': <module at remote 0x7ffff7ebf830>, 'Core': <module at remote 0x7ffff7ebfcc8>, 'builtins': <module at remote 0x7ffff7f7fad0>, 'file': './scripts/omaha', 'args': <Namespace(toolkit='Qt4') at remote 0x7ffff7e2bf90>, 'l': <Launcher(actionQuit=<QAction at remote 0x7ffff19c2dd0>, pluginlist={<QListWidgetItem at remote 0x7ffff08e3200>: <Plugin(_Plugin__path='./plugins/Games/Free.desktop', _Plugin__entry=<DesktopEntry(content={'Desktop Entry': {'Comment': 'A dummy Omaha game plugin for testing new boards', 'Name': 'Free play', 'X-Omaha-Package': 'Omaha.Games.Free', 'Comment[fr]': 'Un pseudo jeu pour tester de nouveaux plateaux dans Omaha', 'X-Omaha-ID': 'FreeGame', 'Type': 'X-Omaha-Game', 'Name[fr]': 'Jeu libre', 'Categories': '', 'X-Omaha-Class': 'FreeGame'}}, defaultGroup='Desktop Entry', tainted=False, filename='./plugins/Games/Free.desktop') at remote 0x7ffff08e09e0>, _Plugin__usable=True, _Plugin__ma...(truncated), locals=
{'argparse': <module at remote 0x7ffff7e55248>, 'unknownargs': [], '__icons_dir': './icons', 'importlib': <module at remote 0x7ffff7ebf830>, 'Core': <module at remote 0x7ffff7ebfcc8>, 'builtins': <module at remote 0x7ffff7f7fad0>, 'file': './scripts/omaha', 'args': <Namespace(toolkit='Qt4') at remote 0x7ffff7e2bf90>, 'l': <Launcher(actionQuit=<QAction at remote 0x7ffff19c2dd0>, pluginlist={<QListWidgetItem at remote 0x7ffff08e3200>: <Plugin(_Plugin__path='./plugins/Games/Free.desktop', _Plugin__entry=<DesktopEntry(content={'Desktop Entry': {'Comment': 'A dummy Omaha game plugin for testing new boards', 'Name': 'Free play', 'X-Omaha-Package': 'Omaha.Games.Free', 'Comment[fr]': 'Un pseudo jeu pour tester de nouveaux plateaux dans Omaha', 'X-Omaha-ID': 'FreeGame', 'Type': 'X-Omaha-Game', 'Name[fr]': 'Jeu libre', 'Categories': '', 'X-Omaha-Class': 'FreeGame'}}, defaultGroup='Desktop Entry', tainted=False, filename='./plugins/Games/Free.desktop') at remote 0x7ffff08e09e0>, _Plugin__usable=True, _Plugin__ma...(truncated), closeit=1, flags=0x7fffffffda80) at ../Python/pythonrun.c:1332
#133 0x00000000004e109e in PyRun_SimpleFileExFlags (fp=0x974eb0, filename=, closeit=1, flags=0x7fffffffda80) at ../Python/pythonrun.c:936
#134 0x00000000004f10ed in Py_Main (argc=, argv=) at ../Modules/main.c:599
#135 0x00007ffff655fead in __libc_start_main (main=, argc=, ubp_av=, init=, fini=, rtld_fini=,
stack_end=0x7fffffffdb98) at libc-start.c:228
#136 0x000000000041f269 in _start ()

@krf
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krf commented Apr 8, 2012

That should be fixed.

commit 3370841
Author: Kevin Funk kevin.funk@kdab.com
Date: Sun Apr 8 21:54:55 2012 +0200

Fix crash in widgettreemodel after widget destruction

Fixes https://github.com/KDAB/GammaRay/issues/9

@krf krf closed this as completed Apr 8, 2012
@krf krf mentioned this issue Jan 28, 2013
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milianw added a commit to milianw/GammaRay that referenced this issue Nov 1, 2017
@milianw
Prevent infinite recursion when tracing plasmashell with gammaray
d36d253 
Fixes stack overflow when running plasmashell through gammaray:

Thread 1 "plasmashell" received signal SIGSEGV, Segmentation fault.
0x00007ffff3ec51fc in ?? () from /usr/lib/libQt5Gui.so.5
(gdb)
(gdb) bt
#0  0x00007ffff3ec51fc in ?? () from /usr/lib/libQt5Gui.so.5
KDAB#1  0x00007ffff3eb4c16 in QImage::convertToFormat_helper(QImage::Format, QFlags<Qt::ImageConversionFlag>) const () from /usr/lib/libQt5Gui.so.5
KDAB#2  0x00007fffe6d8c185 in QXcbWindow::setWindowIcon(QIcon const&) () from /usr/lib/libQt5XcbQpa.so.5
KDAB#3  0x00007ffff3e75ef4 in QWindow::setIcon(QIcon const&) () from /usr/lib/libQt5Gui.so.5
KDAB#4  0x00007fffddae596a in GammaRay::GuiSupport::updateWindowIcon (this=0x55555577d8a0, w=0x555555aef4e0) at /home/milian/projects/src/gammaray/plugins/guisupport/guisupport.cpp:539
KDAB#5  0x00007fffddae5eff in GammaRay::GuiSupport::eventFilter (this=0x55555577d8a0, watched=0x555555aef4e0, event=0x7fffff801490) at /home/milian/projects/src/gammaray/plugins/guisupport/guisupport.cpp:594
KDAB#6  0x00007ffff23d40bf in GammaRay::Probe::eventFilter (this=0x555555705c00, receiver=0x555555aef4e0, event=0x7fffff801490) at /home/milian/projects/src/gammaray/core/probe.cpp:920
KDAB#7  0x00007ffff3446bdc in QCoreApplicationPrivate::sendThroughApplicationEventFilters(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
KDAB#8  0x00007ffff462af6a in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
KDAB#9  0x00007ffff4632a06 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
KDAB#10 0x00007ffff3447060 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
KDAB#11 0x00007ffff3e75f16 in QWindow::setIcon(QIcon const&) () from /usr/lib/libQt5Gui.so.5
KDAB#12 0x00007fffddae596a in GammaRay::GuiSupport::updateWindowIcon (this=0x55555577d8a0, w=0x555555aef4e0) at /home/milian/projects/src/gammaray/plugins/guisupport/guisupport.cpp:539
KDAB#13 0x00007fffddae5eff in GammaRay::GuiSupport::eventFilter (this=0x55555577d8a0, watched=0x555555aef4e0, event=0x7fffff801860) at /home/milian/projects/src/gammaray/plugins/guisupport/guisupport.cpp:594
KDAB#14 0x00007ffff23d40bf in GammaRay::Probe::eventFilter (this=0x555555705c00, receiver=0x555555aef4e0, event=0x7fffff801860) at /home/milian/projects/src/gammaray/core/probe.cpp:920
KDAB#15 0x00007ffff3446bdc in QCoreApplicationPrivate::sendThroughApplicationEventFilters(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
KDAB#16 0x00007ffff462af6a in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
KDAB#17 0x00007ffff4632a06 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
KDAB#18 0x00007ffff3447060 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
KDAB#19 0x00007ffff3e75f16 in QWindow::setIcon(QIcon const&) () from /usr/lib/libQt5Gui.so.5
KDAB#20 0x00007fffddae596a in GammaRay::GuiSupport::updateWindowIcon (this=0x55555577d8a0, w=0x555555aef4e0) at /home/milian/projects/src/gammaray/plugins/guisupport/guisupport.cpp:539
KDAB#21 0x00007fffddae5eff in GammaRay::GuiSupport::eventFilter (this=0x55555577d8a0, watched=0x555555aef4e0, event=0x7fffff801c30) at /home/milian/projects/src/gammaray/plugins/guisupport/guisupport.cpp:594
KDAB#22 0x00007ffff23d40bf in GammaRay::Probe::eventFilter (this=0x555555705c00, receiver=0x555555aef4e0, event=0x7fffff801c30) at /home/milian/projects/src/gammaray/core/probe.cpp:920
@milianw milianw mentioned this issue Nov 1, 2017
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@hallarempt hallarempt mentioned this issue Sep 17, 2018
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milianw added a commit to milianw/GammaRay that referenced this issue May 6, 2020
@milianw
Don't crash when attaching to QiTissue
838658a 
This patch fixes runtime attaching to an ASAN-enabled QiTissue.
Previously I got the following crash reliably at startup:

```
==352112==ERROR: AddressSanitizer: SEGV on unknown address 0x604016000459 (pc 0x7feb421bed63 bp 0x7ffdaed25490 sp 0x7ffdaed25478 T0)
==352112==The signal is caused by a READ memory access.
    #0 0x7feb421bed62 in QHashData::nextNode(QHashData::Node*) (/usr/lib/libQt5Core.so.5+0x104d62)
    KDAB#1 0x7fea9efc9932 in QHash<GammaRay::ToolFactory*, QHashDummyValue>::iterator::operator++() /usr/include/qt/QtCore/qhash.h:345
    KDAB#2 0x7fea9efc8663 in QSet<GammaRay::ToolFactory*>::iterator::operator++() /usr/include/qt/QtCore/qset.h:129
    KDAB#3 0x7fea9efc6e0c in GammaRay::ToolManager::objectAdded(QMetaObject const*) ../core/toolmanager.cpp:217
    KDAB#4 0x7fea9efc6b67 in GammaRay::ToolManager::objectAdded(QObject*) ../core/toolmanager.cpp:194
    KDAB#5 0x7fea9efa7b22 in GammaRay::Probe::objectFullyConstructed(QObject*) ../core/probe.cpp:688
    KDAB#6 0x7fea9efa76b0 in GammaRay::Probe::objectAdded(QObject*, bool) ../core/probe.cpp:612
    KDAB#7 0x7fea9efa8a30 in GammaRay::Probe::discoverObject(QObject*) ../core/probe.cpp:907
    KDAB#8 0x7fea9efa8876 in GammaRay::Probe::findExistingObjects() ../core/probe.cpp:889
    KDAB#9 0x7fea9efa6097 in GammaRay::Probe::createProbe(bool) ../core/probe.cpp:351
    KDAB#10 0x7fead53fb5e7 in GammaRay::ProbeCreator::createProbe() ../probe/probecreator.cpp:92
    KDAB#11 0x7fead53fae5f in GammaRay::ProbeCreator::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) probe/gammaray_probe_obj_autogen/EWIEGA46WW/moc_probecreator.cpp:72
    KDAB#12 0x7feb4238cad9 in QObject::event(QEvent*) (/usr/lib/libQt5Core.so.5+0x2d2ad9)
    KDAB#13 0x7feb43294351 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (/usr/lib/libQt5Widgets.so.5+0x15b351)
    KDAB#14 0x7feb4329d828 in QApplication::notify(QObject*, QEvent*) (/usr/lib/libQt5Widgets.so.5+0x164828)
    KDAB#15 0x7feb4235f4f1 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (/usr/lib/libQt5Core.so.5+0x2a54f1)
    KDAB#16 0x7feb42361d55 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (/usr/lib/libQt5Core.so.5+0x2a7d55)
    KDAB#17 0x7feb423b8243  (/usr/lib/libQt5Core.so.5+0x2fe243)
    KDAB#18 0x7feb206da6bd in g_main_context_dispatch (/usr/lib/libglib-2.0.so.0+0x6b6bd)
    KDAB#19 0x7feb206dc530  (/usr/lib/libglib-2.0.so.0+0x6d530)
    KDAB#20 0x7feb206dc570 in g_main_context_iteration (/usr/lib/libglib-2.0.so.0+0x6d570)
    KDAB#21 0x7feb423b788f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (/usr/lib/libQt5Core.so.5+0x2fd88f)
    KDAB#22 0x7feb4235e05b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (/usr/lib/libQt5Core.so.5+0x2a405b)
    KDAB#23 0x7feb42366065 in QCoreApplication::exec() (/usr/lib/libQt5Core.so.5+0x2ac065)
    KDAB#24 0x5643dbe05406 in main ../KDAB/qitissue/main.cpp:258
    KDAB#25 0x7feb41269022 in __libc_start_main (/usr/lib/libc.so.6+0x27022)
    KDAB#26 0x5643dbdfd1ed in _start (/home/milian/projects/kdab/qitissue/build-asan/bin/QiTissue+0x6b1ed)
```

I can only explain this by assuming that the list got mutated while
iterating over it, i.e. basically a recursion of `objectAdded` which
could happen when we init the factory?
milianw added a commit that referenced this issue May 7, 2020
@milianw
Don't crash when attaching to QiTissue
d0658e1 
This patch fixes runtime attaching to an ASAN-enabled QiTissue.
Previously I got the following crash reliably at startup:

```
==352112==ERROR: AddressSanitizer: SEGV on unknown address 0x604016000459 (pc 0x7feb421bed63 bp 0x7ffdaed25490 sp 0x7ffdaed25478 T0)
==352112==The signal is caused by a READ memory access.
    #0 0x7feb421bed62 in QHashData::nextNode(QHashData::Node*) (/usr/lib/libQt5Core.so.5+0x104d62)
    #1 0x7fea9efc9932 in QHash<GammaRay::ToolFactory*, QHashDummyValue>::iterator::operator++() /usr/include/qt/QtCore/qhash.h:345
    #2 0x7fea9efc8663 in QSet<GammaRay::ToolFactory*>::iterator::operator++() /usr/include/qt/QtCore/qset.h:129
    #3 0x7fea9efc6e0c in GammaRay::ToolManager::objectAdded(QMetaObject const*) ../core/toolmanager.cpp:217
    #4 0x7fea9efc6b67 in GammaRay::ToolManager::objectAdded(QObject*) ../core/toolmanager.cpp:194
    #5 0x7fea9efa7b22 in GammaRay::Probe::objectFullyConstructed(QObject*) ../core/probe.cpp:688
    #6 0x7fea9efa76b0 in GammaRay::Probe::objectAdded(QObject*, bool) ../core/probe.cpp:612
    #7 0x7fea9efa8a30 in GammaRay::Probe::discoverObject(QObject*) ../core/probe.cpp:907
    #8 0x7fea9efa8876 in GammaRay::Probe::findExistingObjects() ../core/probe.cpp:889
    #9 0x7fea9efa6097 in GammaRay::Probe::createProbe(bool) ../core/probe.cpp:351
    #10 0x7fead53fb5e7 in GammaRay::ProbeCreator::createProbe() ../probe/probecreator.cpp:92
    #11 0x7fead53fae5f in GammaRay::ProbeCreator::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) probe/gammaray_probe_obj_autogen/EWIEGA46WW/moc_probecreator.cpp:72
    #12 0x7feb4238cad9 in QObject::event(QEvent*) (/usr/lib/libQt5Core.so.5+0x2d2ad9)
    #13 0x7feb43294351 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (/usr/lib/libQt5Widgets.so.5+0x15b351)
    #14 0x7feb4329d828 in QApplication::notify(QObject*, QEvent*) (/usr/lib/libQt5Widgets.so.5+0x164828)
    #15 0x7feb4235f4f1 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (/usr/lib/libQt5Core.so.5+0x2a54f1)
    #16 0x7feb42361d55 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (/usr/lib/libQt5Core.so.5+0x2a7d55)
    #17 0x7feb423b8243  (/usr/lib/libQt5Core.so.5+0x2fe243)
    #18 0x7feb206da6bd in g_main_context_dispatch (/usr/lib/libglib-2.0.so.0+0x6b6bd)
    #19 0x7feb206dc530  (/usr/lib/libglib-2.0.so.0+0x6d530)
    #20 0x7feb206dc570 in g_main_context_iteration (/usr/lib/libglib-2.0.so.0+0x6d570)
    #21 0x7feb423b788f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (/usr/lib/libQt5Core.so.5+0x2fd88f)
    #22 0x7feb4235e05b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (/usr/lib/libQt5Core.so.5+0x2a405b)
    #23 0x7feb42366065 in QCoreApplication::exec() (/usr/lib/libQt5Core.so.5+0x2ac065)
    #24 0x5643dbe05406 in main ../KDAB/qitissue/main.cpp:258
    #25 0x7feb41269022 in __libc_start_main (/usr/lib/libc.so.6+0x27022)
    #26 0x5643dbdfd1ed in _start (/home/milian/projects/kdab/qitissue/build-asan/bin/QiTissue+0x6b1ed)
```

I can only explain this by assuming that the list got mutated while
iterating over it, i.e. basically a recursion of `objectAdded` which
could happen when we init the factory?
milianw added a commit that referenced this issue Sep 21, 2021
@milianw
Don't crash when attaching to QiTissue
c95a4f5 
This patch fixes runtime attaching to an ASAN-enabled QiTissue.
Previously I got the following crash reliably at startup:

```
==352112==ERROR: AddressSanitizer: SEGV on unknown address 0x604016000459 (pc 0x7feb421bed63 bp 0x7ffdaed25490 sp 0x7ffdaed25478 T0)
==352112==The signal is caused by a READ memory access.
    #0 0x7feb421bed62 in QHashData::nextNode(QHashData::Node*) (/usr/lib/libQt5Core.so.5+0x104d62)
    #1 0x7fea9efc9932 in QHash<GammaRay::ToolFactory*, QHashDummyValue>::iterator::operator++() /usr/include/qt/QtCore/qhash.h:345
    #2 0x7fea9efc8663 in QSet<GammaRay::ToolFactory*>::iterator::operator++() /usr/include/qt/QtCore/qset.h:129
    #3 0x7fea9efc6e0c in GammaRay::ToolManager::objectAdded(QMetaObject const*) ../core/toolmanager.cpp:217
    #4 0x7fea9efc6b67 in GammaRay::ToolManager::objectAdded(QObject*) ../core/toolmanager.cpp:194
    #5 0x7fea9efa7b22 in GammaRay::Probe::objectFullyConstructed(QObject*) ../core/probe.cpp:688
    #6 0x7fea9efa76b0 in GammaRay::Probe::objectAdded(QObject*, bool) ../core/probe.cpp:612
    #7 0x7fea9efa8a30 in GammaRay::Probe::discoverObject(QObject*) ../core/probe.cpp:907
    #8 0x7fea9efa8876 in GammaRay::Probe::findExistingObjects() ../core/probe.cpp:889
    #9 0x7fea9efa6097 in GammaRay::Probe::createProbe(bool) ../core/probe.cpp:351
    #10 0x7fead53fb5e7 in GammaRay::ProbeCreator::createProbe() ../probe/probecreator.cpp:92
    #11 0x7fead53fae5f in GammaRay::ProbeCreator::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) probe/gammaray_probe_obj_autogen/EWIEGA46WW/moc_probecreator.cpp:72
    #12 0x7feb4238cad9 in QObject::event(QEvent*) (/usr/lib/libQt5Core.so.5+0x2d2ad9)
    #13 0x7feb43294351 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (/usr/lib/libQt5Widgets.so.5+0x15b351)
    #14 0x7feb4329d828 in QApplication::notify(QObject*, QEvent*) (/usr/lib/libQt5Widgets.so.5+0x164828)
    #15 0x7feb4235f4f1 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (/usr/lib/libQt5Core.so.5+0x2a54f1)
    #16 0x7feb42361d55 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (/usr/lib/libQt5Core.so.5+0x2a7d55)
    #17 0x7feb423b8243  (/usr/lib/libQt5Core.so.5+0x2fe243)
    #18 0x7feb206da6bd in g_main_context_dispatch (/usr/lib/libglib-2.0.so.0+0x6b6bd)
    #19 0x7feb206dc530  (/usr/lib/libglib-2.0.so.0+0x6d530)
    #20 0x7feb206dc570 in g_main_context_iteration (/usr/lib/libglib-2.0.so.0+0x6d570)
    #21 0x7feb423b788f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (/usr/lib/libQt5Core.so.5+0x2fd88f)
    #22 0x7feb4235e05b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (/usr/lib/libQt5Core.so.5+0x2a405b)
    #23 0x7feb42366065 in QCoreApplication::exec() (/usr/lib/libQt5Core.so.5+0x2ac065)
    #24 0x5643dbe05406 in main ../KDAB/qitissue/main.cpp:258
    #25 0x7feb41269022 in __libc_start_main (/usr/lib/libc.so.6+0x27022)
    #26 0x5643dbdfd1ed in _start (/home/milian/projects/kdab/qitissue/build-asan/bin/QiTissue+0x6b1ed)
```

I can only explain this by assuming that the list got mutated while
iterating over it, i.e. basically a recursion of `objectAdded` which
could happen when we init the factory?
tsdgeos added a commit to tsdgeos/GammaRay that referenced this issue Nov 30, 2022
@tsdgeos
Fix crash when using the software renderer
9ccf470 
AddressSanitizer:DEADLYSIGNAL
=================================================================
==84890==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x000111d654b0 bp 0x00016dbf8120 sp 0x00016dbf8020 T0)
==84890==The signal is caused by a UNKNOWN memory access.
==84890==Hint: address points to the zero page.
    #0 0x111d654b0 in QPainterPrivate::attachPainterPrivate(QPainter*, QPaintDevice*) qpainter.cpp:242
    KDAB#1 0x111d6931c in QPainter::QPainter(QPaintDevice*) qpainter.cpp:1466
    KDAB#2 0x12bc00dd8 in GammaRay::SoftwareScreenGrabber::drawDecorations()+0x168 (gammaray_quickinspector.so:arm64+0x48dd8)
    KDAB#3 0x12bc004f4 in GammaRay::SoftwareScreenGrabber::windowAfterRendering()+0x34 (gammaray_quickinspector.so:arm64+0x484f4)
    KDAB#4 0x1142334e4 in void doActivate<true>(QObject*, int, void**) qobject.cpp:3972
    KDAB#5 0x112547b78 in QQuickWindowPrivate::renderSceneGraph(QSize const&, QSize const&) qquickwindow.cpp:664
    KDAB#6 0x1125669ac in QSGSoftwareRenderLoop::renderWindow(QQuickWindow*, bool) qsgsoftwarerenderloop.cpp:142
    KDAB#7 0x11254a7f4 in QQuickWindow::event(QEvent*) qquickwindow.cpp
    KDAB#8 0x1141eb3f8 in QCoreApplicationPrivate::notify_helper(QObject*, QEvent*) qcoreapplication.cpp:1193
    KDAB#9 0x1141eaf60 in QCoreApplication::notifyInternal2(QObject*, QEvent*) qcoreapplication.cpp:1026
    KDAB#10 0x111ca8620 in QPlatformWindow::deliverUpdateRequest() qplatformwindow.cpp:774
    KDAB#11 0x119dc7e30 in QCocoaWindow::deliverUpdateRequest() qcocoawindow.mm:1581
    KDAB#12 0x119db37bc in QCocoaScreen::deliverUpdateRequests() qcocoascreen.mm:454
@tsdgeos tsdgeos mentioned this issue Nov 30, 2022
Merged
Waqar144 pushed a commit that referenced this issue Nov 30, 2022
@tsdgeos @Waqar144
Fix crash when using the software renderer
db62cff 
AddressSanitizer:DEADLYSIGNAL
=================================================================
==84890==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x000111d654b0 bp 0x00016dbf8120 sp 0x00016dbf8020 T0)
==84890==The signal is caused by a UNKNOWN memory access.
==84890==Hint: address points to the zero page.
    #0 0x111d654b0 in QPainterPrivate::attachPainterPrivate(QPainter*, QPaintDevice*) qpainter.cpp:242
    #1 0x111d6931c in QPainter::QPainter(QPaintDevice*) qpainter.cpp:1466
    #2 0x12bc00dd8 in GammaRay::SoftwareScreenGrabber::drawDecorations()+0x168 (gammaray_quickinspector.so:arm64+0x48dd8)
    #3 0x12bc004f4 in GammaRay::SoftwareScreenGrabber::windowAfterRendering()+0x34 (gammaray_quickinspector.so:arm64+0x484f4)
    #4 0x1142334e4 in void doActivate<true>(QObject*, int, void**) qobject.cpp:3972
    #5 0x112547b78 in QQuickWindowPrivate::renderSceneGraph(QSize const&, QSize const&) qquickwindow.cpp:664
    #6 0x1125669ac in QSGSoftwareRenderLoop::renderWindow(QQuickWindow*, bool) qsgsoftwarerenderloop.cpp:142
    #7 0x11254a7f4 in QQuickWindow::event(QEvent*) qquickwindow.cpp
    #8 0x1141eb3f8 in QCoreApplicationPrivate::notify_helper(QObject*, QEvent*) qcoreapplication.cpp:1193
    #9 0x1141eaf60 in QCoreApplication::notifyInternal2(QObject*, QEvent*) qcoreapplication.cpp:1026
    #10 0x111ca8620 in QPlatformWindow::deliverUpdateRequest() qplatformwindow.cpp:774
    #11 0x119dc7e30 in QCocoaWindow::deliverUpdateRequest() qcocoawindow.mm:1581
    #12 0x119db37bc in QCocoaScreen::deliverUpdateRequests() qcocoascreen.mm:454
shaan7 pushed a commit to shaan7/GammaRay that referenced this issue Jul 31, 2023
@tsdgeos @shaan7
Fix crash when using the software renderer
2dd2496 
AddressSanitizer:DEADLYSIGNAL
=================================================================
==84890==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x000111d654b0 bp 0x00016dbf8120 sp 0x00016dbf8020 T0)
==84890==The signal is caused by a UNKNOWN memory access.
==84890==Hint: address points to the zero page.
    #0 0x111d654b0 in QPainterPrivate::attachPainterPrivate(QPainter*, QPaintDevice*) qpainter.cpp:242
    KDAB#1 0x111d6931c in QPainter::QPainter(QPaintDevice*) qpainter.cpp:1466
    KDAB#2 0x12bc00dd8 in GammaRay::SoftwareScreenGrabber::drawDecorations()+0x168 (gammaray_quickinspector.so:arm64+0x48dd8)
    KDAB#3 0x12bc004f4 in GammaRay::SoftwareScreenGrabber::windowAfterRendering()+0x34 (gammaray_quickinspector.so:arm64+0x484f4)
    KDAB#4 0x1142334e4 in void doActivate<true>(QObject*, int, void**) qobject.cpp:3972
    KDAB#5 0x112547b78 in QQuickWindowPrivate::renderSceneGraph(QSize const&, QSize const&) qquickwindow.cpp:664
    KDAB#6 0x1125669ac in QSGSoftwareRenderLoop::renderWindow(QQuickWindow*, bool) qsgsoftwarerenderloop.cpp:142
    KDAB#7 0x11254a7f4 in QQuickWindow::event(QEvent*) qquickwindow.cpp
    KDAB#8 0x1141eb3f8 in QCoreApplicationPrivate::notify_helper(QObject*, QEvent*) qcoreapplication.cpp:1193
    KDAB#9 0x1141eaf60 in QCoreApplication::notifyInternal2(QObject*, QEvent*) qcoreapplication.cpp:1026
    KDAB#10 0x111ca8620 in QPlatformWindow::deliverUpdateRequest() qplatformwindow.cpp:774
    KDAB#11 0x119dc7e30 in QCocoaWindow::deliverUpdateRequest() qcocoawindow.mm:1581
    KDAB#12 0x119db37bc in QCocoaScreen::deliverUpdateRequests() qcocoascreen.mm:454
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@krf @milianw @aholza @ydirson