https://bugs.kde.org/show_bug.cgi?id=428611
Bug ID: 428611
Summary: Cantor crashes after closing tab with working Sage
Product: cantor
Version: unspecified
Platform: Ubuntu Packages
OS: Linux
Status: REPORTED
Keywords: drkonqi
Severity: crash
Priority: NOR
Component: general
Assignee: cantor-b...@kde.org
Reporter: ftefrjbhfvas...@o2.pl
Target Milestone: ---
Application: cantor (20.08.2)
Qt Version: 5.14.2
Frameworks Version: 5.74.0
Operating System: Linux 5.8.0-26-generic x86_64
Windowing system: X11
Distribution: Ubuntu 20.10
-- Information about the crash:
- What I was doing when the application crashed:
I tried to use Sage 9.2 installed in /opt/SageMath/ and symlinked in /usr/bin/.
Sage doesn't work in Cantor after all (but works in terminal), but the biggest
problem is that Cantor crashes when I click to close tab with worksheet. It
happens every time.
- Custom settings of the application:
I have manually installed Sage in /opt/ (vanilla version downloaded from Sage
website).
The crash can be reproduced every time.
-- Backtrace:
Application: Cantor (cantor), signal: Segmentation fault
Content of s_kcrashErrorMessage: (null)
[KCrash Handler]
#6 0x0000000000000000 in ?? ()
#7 0x00007fa3fb7732e6 in QtPrivate::QSlotObjectBase::call (a=0x7ffd9a19d250,
r=0x55b9698c8db0, this=0x55b969a58f70) at
../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#8 doActivate<false> (sender=0x55b9698e6110, signal_index=7,
argv=0x7ffd9a19d250) at kernel/qobject.cpp:3870
#9 0x00007fa3fb7732e6 in QtPrivate::QSlotObjectBase::call (a=0x7ffd9a19d390,
r=0x55b96a0d2790, this=0x55b96a2aafb0) at
../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#10 doActivate<false> (sender=0x55b96989d350, signal_index=8,
argv=argv@entry=0x7ffd9a19d390) at kernel/qobject.cpp:3870
#11 0x00007fa3fb76d068 in QMetaObject::activate
(sender=sender@entry=0x55b96989d350, m=m@entry=0x7fa3fcdb42c0
<Cantor::Expression::staticMetaObject>,
local_signal_index=local_signal_index@entry=5, argv=argv@entry=0x7ffd9a19d390)
at kernel/qobject.cpp:3930
#12 0x00007fa3fcd77cf5 in Cantor::Expression::statusChanged
(this=this@entry=0x55b96989d350, _t1=<optimized out>,
_t1@entry=Cantor::Expression::Interrupted) at
./obj-x86_64-linux-gnu/src/lib/cantorlibs_autogen/EWIEGA46WW/moc_expression.cpp:249
#13 0x00007fa3fcd7db8c in Cantor::Expression::setStatus (this=0x55b96989d350,
status=Cantor::Expression::Interrupted) at ./src/lib/expression.cpp:206
#14 0x00007fa3f009ece5 in ?? () from
/usr/lib/x86_64-linux-gnu/qt5/plugins/cantor/backends/cantor_sagebackend.so
#15 0x00007fa3f009f149 in ?? () from
/usr/lib/x86_64-linux-gnu/qt5/plugins/cantor/backends/cantor_sagebackend.so
#16 0x00007fa3deafded0 in Worksheet::~Worksheet (this=0x55b9698e6110,
__in_chrg=<optimized out>) at ./src/worksheet.cpp:119
#17 0x00007fa3deafe08d in Worksheet::~Worksheet (this=0x55b9698e6110,
__in_chrg=<optimized out>) at ./src/worksheet.cpp:107
#18 0x00007fa3fb76718e in QObjectPrivate::deleteChildren
(this=this@entry=0x55b9696d4c00) at kernel/qobject.cpp:2123
#19 0x00007fa3fc22fa66 in QWidget::~QWidget (this=0x55b9699460d0,
__in_chrg=<optimized out>) at kernel/qwidget.cpp:1530
#20 0x00007fa3fc22fdbd in QWidget::~QWidget (this=0x55b9699460d0,
__in_chrg=<optimized out>) at kernel/qwidget.cpp:1408
#21 0x00007fa3fcd118b7 in KParts::Part::~Part (this=0x55b9698c8db0,
__vtt_parm=0x7fa3deb77638 <VTT for CantorPart+24>, __in_chrg=<optimized out>)
at /usr/include/c++/10/bits/atomic_base.h:420
#22 0x00007fa3deae5a82 in CantorPart::~CantorPart (this=0x55b9698c8db0,
__in_chrg=<optimized out>, __vtt_parm=<optimized out>) at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qpointer.h:53
#23 0x00007fa3deae5acd in CantorPart::~CantorPart (this=0x55b9698c8db0,
__in_chrg=<optimized out>, __vtt_parm=<optimized out>) at
./src/cantor_part.cpp:400
#24 0x000055b967a7c6d0 in CantorShell::closeTab (this=0x55b96967cb30,
index=<optimized out>) at ./src/cantor.cpp:483
#25 0x00007fa3fb773320 in doActivate<false> (sender=0x55b9697f0650,
signal_index=8, argv=argv@entry=0x7ffd9a19d7b0) at
../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:395
#26 0x00007fa3fb76d068 in QMetaObject::activate (sender=<optimized out>,
m=m@entry=0x7fa3fc7075e0 <QTabWidget::staticMetaObject>,
local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7ffd9a19d7b0)
at kernel/qobject.cpp:3930
#27 0x00007fa3fc3c23e5 in QTabWidget::tabCloseRequested (this=<optimized out>,
_t1=<optimized out>) at .moc/moc_qtabwidget.cpp:333
#28 0x00007fa3fb773320 in doActivate<false> (sender=0x55b969749a30,
signal_index=8, argv=argv@entry=0x7ffd9a19d8d0) at
../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:395
#29 0x00007fa3fb76d068 in QMetaObject::activate (sender=<optimized out>,
m=m@entry=0x7fa3fc706040 <QTabBar::staticMetaObject>,
local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7ffd9a19d8d0)
at kernel/qobject.cpp:3930
#30 0x00007fa3fc3a1ff5 in QTabBar::tabCloseRequested (this=<optimized out>,
_t1=<optimized out>) at .moc/moc_qtabbar.cpp:345
#31 0x00007fa3fb773320 in doActivate<false> (sender=0x55b9698d0990,
signal_index=9, argv=argv@entry=0x7ffd9a19d9f0) at
../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:395
#32 0x00007fa3fb76d068 in QMetaObject::activate
(sender=sender@entry=0x55b9698d0990, m=m@entry=0x7fa3fc6fa2a0
<QAbstractButton::staticMetaObject>,
local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7ffd9a19d9f0)
at kernel/qobject.cpp:3930
#33 0x00007fa3fc2e1ec6 in QAbstractButton::clicked
(this=this@entry=0x55b9698d0990, _t1=<optimized out>) at
.moc/moc_qabstractbutton.cpp:313
#34 0x00007fa3fc2e288e in QAbstractButtonPrivate::emitClicked
(this=this@entry=0x55b96a162cd0) at widgets/qabstractbutton.cpp:415
#35 0x00007fa3fc2e4143 in QAbstractButtonPrivate::click
(this=this@entry=0x55b96a162cd0) at widgets/qabstractbutton.cpp:408
#36 0x00007fa3fc2e4325 in QAbstractButton::mouseReleaseEvent
(this=0x55b9698d0990, e=0x7ffd9a19dfb0) at widgets/qabstractbutton.cpp:1012
#37 0x00007fa3fc23430e in QWidget::event (this=0x55b9698d0990,
event=0x7ffd9a19dfb0) at kernel/qwidget.cpp:9033
#38 0x00007fa3fc1f3013 in QApplicationPrivate::notify_helper (this=<optimized
out>, receiver=0x55b9698d0990, e=0x7ffd9a19dfb0) at
kernel/qapplication.cpp:3685
#39 0x00007fa3fc1f8841 in QApplication::notify(QObject*, QEvent*) () at
kernel/qapplication.cpp:3129
#40 0x00007fa3fb73d1ca in QCoreApplication::notifyInternal2
(receiver=0x55b9698d0990, event=0x7ffd9a19dfb0) at
../../include/QtCore/../../src/corelib/kernel/qobject.h:153
#41 0x00007fa3fc1f773a in QApplicationPrivate::sendMouseEvent
(receiver=receiver@entry=0x55b9698d0990, event=event@entry=0x7ffd9a19dfb0,
alienWidget=alienWidget@entry=0x55b9698d0990, nativeWidget=0x55b96967cb30,
buttonDown=<optimized out>, lastMouseReceiver=..., spontaneous=true,
onlyDispatchEnterLeave=false) at kernel/qapplication.cpp:2615
#42 0x00007fa3fc24cf32 in QWidgetWindow::handleMouseEvent (this=0x55b969b1ca70,
event=0x7ffd9a19e270) at /usr/include/c++/10/bits/atomic_base.h:420
#43 0x00007fa3fc24fd8e in QWidgetWindow::event (this=0x55b969b1ca70,
event=0x7ffd9a19e270) at kernel/qwidgetwindow.cpp:295
#44 0x00007fa3fc1f3013 in QApplicationPrivate::notify_helper (this=<optimized
out>, receiver=0x55b969b1ca70, e=0x7ffd9a19e270) at
kernel/qapplication.cpp:3685
#45 0x00007fa3fb73d1ca in QCoreApplication::notifyInternal2
(receiver=0x55b969b1ca70, event=0x7ffd9a19e270) at
../../include/QtCore/../../src/corelib/kernel/qobject.h:153
#46 0x00007fa3fbb0e48b in QGuiApplicationPrivate::processMouseEvent
(e=0x55b96a21b300) at kernel/qguiapplication.cpp:2203
#47 0x00007fa3fbae42bb in QWindowSystemInterface::sendWindowSystemEvents
(flags=flags@entry=...) at kernel/qwindowsysteminterface.cpp:1170
#48 0x00007fa3f4cae35e in xcbSourceDispatch (source=<optimized out>) at
qxcbeventdispatcher.cpp:105
#49 0x00007fa3f9c164db in g_main_dispatch (context=0x7fa3ec005000) at
../../../glib/gmain.c:3325
#50 g_main_context_dispatch (context=0x7fa3ec005000) at
../../../glib/gmain.c:4016
#51 0x00007fa3f9c16788 in g_main_context_iterate
(context=context@entry=0x7fa3ec005000, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4092
#52 0x00007fa3f9c16853 in g_main_context_iteration (context=0x7fa3ec005000,
may_block=may_block@entry=1) at ../../../glib/gmain.c:4157
#53 0x00007fa3fb794843 in QEventDispatcherGlib::processEvents
(this=0x55b9695fb160, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#54 0x00007fa3fb73ba4b in QEventLoop::exec (this=this@entry=0x7ffd9a19e5a0,
flags=..., flags@entry=...) at
../../include/QtCore/../../src/corelib/global/qflags.h:136
#55 0x00007fa3fb743fc6 in QCoreApplication::exec () at
../../include/QtCore/../../src/corelib/global/qflags.h:118
#56 0x000055b967a7787f in main (argc=<optimized out>, argv=<optimized out>) at
./src/main.cpp:152
[Inferior 1 (process 15810) detached]
Possible duplicates by query: bug 427575, bug 426596, bug 426090, bug 425786,
bug 425658.
Reported using DrKonqi
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