https://bugs.kde.org/show_bug.cgi?id=469404
Bug ID: 469404
Summary: Sage backend crashes on any input
Classification: Applications
Product: cantor
Version: unspecified
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: sage-backend
Assignee: cantor-b...@kde.org
Reporter: aro...@archlinux.org
Target Milestone: ---
On git master, the sage backend crashes on any input:
(gdb) bt
#0 0x00007fffeecaf9e9 in
std::__atomic_base<QObjectPrivate::ConnectionData*>::load(std::memory_order)
const (__m=<optimized out>, this=<optimized out>)
at /usr/include/c++/12.2.1/bits/atomic_base.h:820
#1 std::atomic<QObjectPrivate::ConnectionData*>::load(std::memory_order) const
(__m=<optimized out>, this=<optimized out>)
at /usr/include/c++/12.2.1/atomic:579
#2
QAtomicOps<QObjectPrivate::ConnectionData*>::loadRelaxed<QObjectPrivate::ConnectionData*>(std::atomic<QObjectPrivate::ConnectionData*>
const&)
(_q_value=<optimized out>) at
../../include/QtCore/../../src/corelib/thread/qatomic_cxx11.h:239
#3 QBasicAtomicPointer<QObjectPrivate::ConnectionData>::loadRelaxed() const
(this=<optimized out>)
at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:248
#4 QObjectPrivate::ensureConnectionData() (this=<optimized out>) at
kernel/qobject_p.h:393
#5 QObjectPrivate::addConnection(int, QObjectPrivate::Connection*)
(this=0xd58c9815ce0898f8, signal=8, c=0x5555562ced70) at kernel/qobject.cpp:325
#6 0x00007fffeecbd134 in QObjectPrivate::connectImpl(QObject const*, int,
QObject const*, void**, QtPrivate::QSlotObjectBase*, Qt::ConnectionType, int
const*, QMetaObject const*)
(sender=sender@entry=0x5555562974f0, signal_index=8,
receiver=receiver@entry=0x555555f20e80, slot=slot@entry=0x7fffffffd990,
slotObj=slotObj@entry=0x55555621a090, type=<optimized out>, types=<optimized
out>, senderMetaObject=<optimized out>)
at ../../include/QtCore/../../src/corelib/kernel/qobject.h:132
#7 0x00007fffeecbd51e in QObject::connectImpl(QObject const*, void**, QObject
const*, void**, QtPrivate::QSlotObjectBase*, Qt::ConnectionType, int const*,
QMetaObject const*)
(sender=sender@entry=0x5555562974f0, signal=signal@entry=0x7fffffffd980,
receiver=receiver@entry=0x555555f20e80, slot=slot@entry=0x7fffffffd990,
slotObj=0x55555621a090, type=Qt::AutoConnection, types=0x0,
senderMetaObject=<optimized out>) at kernel/qobject.cpp:5038
#8 0x00007fffb80a0ab6 in QObject::connect<void
(Cantor::Expression::*)(Cantor::Expression::Status), void
(Cantor::Session::*)(Cantor::Expression::Status)>(QtPrivate::FunctionPointer<void
(Cantor::Expression::*)(Cantor::Expression::Status)>::Object const*, void
(Cantor::Expression::*)(Cantor::Expression::Status),
QtPrivate::FunctionPointer<void
(Cantor::Session::*)(Cantor::Expression::Status)>::Object const*, void
(Cantor::Session::*)(Cantor::Expression::Status), Qt::ConnectionType)
(type=Qt::AutoConnection, slot=(void (Cantor::Session::*)(Cantor::Session *
const, Cantor::Expression::Status)) 0x7ffff7ebb750
<Cantor::Session::currentExpressionStatusChanged(Cantor::Expression::Status)>,
receiver=0x555555f20e80, signal=(void
(Cantor::Expression::*)(Cantor::Expression * const,
Cantor::Expression::Status)) 0x7ffff7eb93a0
<Cantor::Expression::statusChanged(Cantor::Expression::Status)>,
sender=0x5555562974f0)
at /usr/include/qt/QtCore/qobject.h:268
#9 SageSession::runFirstExpression() (this=0x555555f20e80) at
/usr/src/debug/cantor/cantor/src/backends/sage/sagesession.cpp:346
--Type <RET> for more, q to quit, c to continue without paging--
#10 0x00007fffb80a86b3 in SageSession::readStdOut() (this=0x555555f20e80) at
/usr/src/debug/cantor/cantor/src/backends/sage/sagesession.cpp:263
#11 0x00007fffeecbeb41 in QtPrivate::QSlotObjectBase::call(QObject*, void**)
(a=0x7fffffffdb30, r=<optimized out>, this=0x5555562b35c0, this=<optimized
out>, r=<optimized out>, a=<optimized out>)
at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#12 doActivate<false>(QObject*, int, void**) (sender=0x55555611e620,
signal_index=3, argv=0x7fffffffdb30) at kernel/qobject.cpp:3923
#13 0x00007fffeec123da in
QProcessPrivate::tryReadFromChannel(QProcessPrivate::Channel*)
(this=0x55555612dfa0, channel=0x55555612e0b0)
at io/qprocess.cpp:1068
#14 0x00007fffeec18f2d in QProcessPrivate::_q_canReadStandardError()
(this=<optimized out>) at io/qprocess.cpp:1092
#15 QProcess::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)
(_o=<optimized out>, _c=<optimized out>, _id=<optimized out>,
_a=0x7fffffffdd00) at .moc/moc_qprocess.cpp:210
#16 0x00007fffeecbecf0 in doActivate<false>(QObject*, int, void**)
(sender=0x55555612b9b0, signal_index=3, argv=0x7fffffffdd00)
at kernel/qobject.cpp:3935
#17 0x00007fffeecc09f4 in QSocketNotifier::activated(QSocketDescriptor,
QSocketNotifier::Type, QSocketNotifier::QPrivateSignal)
(this=this@entry=0x55555612b9b0, _t1=..., _t2=<optimized out>, _t3=...) at
.moc/moc_qsocketnotifier.cpp:178
#18 0x00007fffeecc0b38 in QSocketNotifier::event(QEvent*) (this=0x55555612b9b0,
e=<optimized out>) at kernel/qsocketnotifier.cpp:302
#19 0x00007fffef978b5c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
(this=<optimized out>, receiver=0x55555612b9b0, e=0x7fffffffde20)
at kernel/qapplication.cpp:3640
#20 0x00007fffeec8e028 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
(receiver=0x55555612b9b0, event=0x7fffffffde20)
at kernel/qcoreapplication.cpp:1064
#21 0x00007fffeecd7b96 in socketNotifierSourceDispatch(GSource*, GSourceFunc,
gpointer) (source=0x555555610730) at kernel/qeventdispatcher_glib.cpp:107
#22 0x00007fffe8d0f53b in g_main_dispatch (context=0x7fffd0000ee0) at
../glib/glib/gmain.c:3460
#23 g_main_context_dispatch (context=0x7fffd0000ee0) at
../glib/glib/gmain.c:4200
#24 0x00007fffe8d6c219 in g_main_context_iterate.constprop.0
(context=0x7fffd0000ee0, block=1, dispatch=1, self=<optimized out>)
at ../glib/glib/gmain.c:4276
#25 0x00007fffe8d0e1a2 in g_main_context_iteration (context=0x7fffd0000ee0,
may_block=1) at ../glib/glib/gmain.c:4343
#26 0x00007fffeecd8d3c in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x555555611370, flags=...)
at kernel/qeventdispatcher_glib.cpp:423
#27 0x00007fffeec8668c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fffffffe0a0,
flags=...)
--Type <RET> for more, q to quit, c to continue without paging--
at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#28 0x00007fffeec912f9 in QCoreApplication::exec() () at
../../include/QtCore/../../src/corelib/global/qflags.h:121
#29 0x00007fffef13b052 in QGuiApplication::exec() () at
kernel/qguiapplication.cpp:1870
#30 0x00007fffef976f2a in QApplication::exec() () at
kernel/qapplication.cpp:2832
#31 0x00005555555676ce in main(int, char**) (argc=<optimized out>,
argv=<optimized out>) at /usr/src/debug/cantor/cantor/src/main.cpp:141
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