Seg Fault when closing

[jparisu]

Problem description

When closing PlotJuggler, it gives a seg fault.
It happens just opening and closing the application, without touching anything.

Steps to reproduce (important)

• Describe your platform / Operative System.
  Ubuntu 22.04
  Installation from sources as specified in https://github.com/facontidavide/PlotJuggler/blob/main/COMPILE.md

• Check if the problem can be reproduced using the dummy data created by the command line argument "-t" or one of the files in the folder "datasamples".
  The problem is on closure, and happens without even open or touch anything.

• If it can't be reproduced with the dummy data, please share the CSV file or the rosbag that can be used to reproduce the problem.

Traces

stdout

eprosima   ~/projects/current/desktop $ ./install/plotjuggler/bin/plotjuggler 
Loading compatible plugins from directory:  "/home/eprosima/projects/current/desktop/install/plotjuggler/bin"
"libDataLoadCSV.so is a DataLoader plugin"
"libDataLoadMCAP.so is a DataLoader plugin"
"libDataLoadULog.so is a DataLoader plugin"
"libDataStreamSample.so is a DataStreamer plugin"  ...disabled, unless option -t is used
"libDataStreamUDP.so is a DataStreamer plugin"
"libDataStreamWebSocket.so is a DataStreamer plugin"
"libParserROS1.so is a MessageParser plugin"
"libParserROS2.so is a MessageParser plugin"
"libProtobufParser.so is a MessageParser plugin"
"libPublisherCSV.so is a StatePublisher plugin"
Type conversion already registered from type QString to type QwtText
"libToolboxFFT.so is a Toolbox plugin"
"libToolboxLuaEditor.so is a Toolbox plugin"
Type conversion already registered from type QString to type QwtText
"libToolboxQuaternion.so is a Toolbox plugin"
Number of plugins loaded:  12 

Loading compatible plugins from directory:  "/home/eprosima/.local/share/PlotJuggler"
Number of plugins loaded:  0 

Stack trace (most recent call last):
#24   Object "[0xffffffffffffffff]", at 0xffffffffffffffff, in 
#23   Object "./install/plotjuggler/bin/plotjuggler", at 0x5567a02c77a4, in 
#22   Object "/lib/x86_64-linux-gnu/libc.so.6", at 0x7f1c7daf3e3f, in __libc_start_main
#21   Object "/lib/x86_64-linux-gnu/libc.so.6", at 0x7f1c7daf3d8f, in 
#20   Object "./install/plotjuggler/bin/plotjuggler", at 0x5567a02c59dc, in 
#19   Object "/lib/x86_64-linux-gnu/libQt5Core.so.5", at 0x7f1c7e2e3cf3, in QCoreApplication::exec()
#18   Object "/lib/x86_64-linux-gnu/libQt5Core.so.5", at 0x7f1c7e2db75a, in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
#17   Object "/lib/x86_64-linux-gnu/libQt5Core.so.5", at 0x7f1c7e3360b7, in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
#16   Object "/lib/x86_64-linux-gnu/libglib-2.0.so.0", at 0x7f1c7d1243e2, in g_main_context_iteration
#15   Object "/lib/x86_64-linux-gnu/libglib-2.0.so.0", at 0x7f1c7d17b6c7, in 
#14   Object "/lib/x86_64-linux-gnu/libglib-2.0.so.0", at 0x7f1c7d126d3a, in g_main_context_dispatch
#13   Object "/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5", at 0x7f1c79892d6d, in 
#12   Object "/lib/x86_64-linux-gnu/libQt5Gui.so.5", at 0x7f1c7e698a2b, in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
#11   Object "/lib/x86_64-linux-gnu/libQt5Gui.so.5", at 0x7f1c7e6bff1c, in QGuiApplicationPrivate::processCloseEvent(QWindowSystemInterfacePrivate::CloseEvent*)
#10   Object "/lib/x86_64-linux-gnu/libQt5Core.so.5", at 0x7f1c7e2dce39, in QCoreApplication::notifyInternal2(QObject*, QEvent*)
#9    Object "/lib/x86_64-linux-gnu/libQt5Widgets.so.5", at 0x7f1c7edce712, in QApplicationPrivate::notify_helper(QObject*, QEvent*)
#8    Object "/lib/x86_64-linux-gnu/libQt5Widgets.so.5", at 0x7f1c7ee2e127, in 
#7    Object "/lib/x86_64-linux-gnu/libQt5Widgets.so.5", at 0x7f1c7ee0c7ff, in QWidgetPrivate::close_helper(QWidgetPrivate::CloseMode)
#6    Object "/lib/x86_64-linux-gnu/libQt5Core.so.5", at 0x7f1c7e2dce39, in QCoreApplication::notifyInternal2(QObject*, QEvent*)
#5    Object "/lib/x86_64-linux-gnu/libQt5Widgets.so.5", at 0x7f1c7edce712, in QApplicationPrivate::notify_helper(QObject*, QEvent*)
#4    Object "/lib/x86_64-linux-gnu/libQt5Widgets.so.5", at 0x7f1c7ee114ed, in QWidget::event(QEvent*)
#3    Object "./install/plotjuggler/bin/plotjuggler", at 0x5567a030998c, in 
#2    Object "./install/plotjuggler/bin/plotjuggler", at 0x5567a02da799, in 
#1    Object "/home/eprosima/projects/current/desktop/install/plotjuggler/bin/libDataLoadCSV.so", at 0x7f1c583eb0a5, in DataLoadCSV::~DataLoadCSV()
#0    Object "/home/eprosima/projects/current/desktop/install/plotjuggler/bin/libDataLoadCSV.so", at 0x7f1c583eb006, in DataLoadCSV::~DataLoadCSV()
Segmentation fault (Address not mapped to object [0x5562f417726a])
Segmentation fault (core dumped)

GDB trace

#0  __pthread_kill_implementation (no_tid=0, signo=11, threadid=139760298969024) at ./nptl/pthread_kill.c:44
#1  __pthread_kill_internal (signo=11, threadid=139760298969024) at ./nptl/pthread_kill.c:78
#2  __GI___pthread_kill (threadid=139760298969024, signo=signo@entry=11) at ./nptl/pthread_kill.c:89
#3  0x00007f1c7db0c476 in __GI_raise (sig=11) at ../sysdeps/posix/raise.c:26
#4  0x00005567a03c74a2 in backward::SignalHandling::sig_handler (signo=<optimized out>, info=0x7f1c7af90b30, _ctx=<optimized out>)
    at /home/eprosima/projects/current/desktop/src/plotjuggler/3rdparty/backward-cpp/backward.hpp:3979
#5  <signal handler called>
#6  0x00007f1c583eb006 in DataLoadCSV::~DataLoadCSV (this=0x5567a26260e0, __in_chrg=<optimized out>)
    at /home/eprosima/projects/current/desktop/src/plotjuggler/plotjuggler_plugins/DataLoadCSV/dataload_csv.cpp:144
#7  0x00007f1c583eb0a6 in DataLoadCSV::~DataLoadCSV (this=0x5567a26260e0, __in_chrg=<optimized out>)
    at /home/eprosima/projects/current/desktop/src/plotjuggler/plotjuggler_plugins/DataLoadCSV/dataload_csv.cpp:145
#8  0x00005567a02da79a in std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2>::_M_release (this=0x5567a26de140) at /usr/include/c++/11/bits/shared_ptr_base.h:168
#9  0x00005567a030998d in std::__shared_count<(__gnu_cxx::_Lock_policy)2>::~__shared_count (this=0x5567a26de4a0, __in_chrg=<optimized out>) at /usr/include/c++/11/bits/shared_ptr_base.h:705
#10 std::__shared_ptr<PJ::DataLoader, (__gnu_cxx::_Lock_policy)2>::~__shared_ptr (this=0x5567a26de498, __in_chrg=<optimized out>) at /usr/include/c++/11/bits/shared_ptr_base.h:1154
#11 std::shared_ptr<PJ::DataLoader>::~shared_ptr (this=0x5567a26de498, __in_chrg=<optimized out>) at /usr/include/c++/11/bits/shared_ptr.h:122
#12 std::pair<QString const, std::shared_ptr<PJ::DataLoader> >::~pair (this=0x5567a26de490, __in_chrg=<optimized out>) at /usr/include/c++/11/bits/stl_pair.h:211
#13 __gnu_cxx::new_allocator<std::_Rb_tree_node<std::pair<QString const, std::shared_ptr<PJ::DataLoader> > > >::destroy<std::pair<QString const, std::shared_ptr<PJ::DataLoader> > > (__p=0x5567a26de490, 
    this=<optimized out>) at /usr/include/c++/11/ext/new_allocator.h:168
#14 std::allocator_traits<std::allocator<std::_Rb_tree_node<std::pair<QString const, std::shared_ptr<PJ::DataLoader> > > > >::destroy<std::pair<QString const, std::shared_ptr<PJ::DataLoader> > > (
    __p=0x5567a26de490, __a=...) at /usr/include/c++/11/bits/alloc_traits.h:535
#15 std::_Rb_tree<QString, std::pair<QString const, std::shared_ptr<PJ::DataLoader> >, std::_Select1st<std::pair<QString const, std::shared_ptr<PJ::DataLoader> > >, std::less<QString>, std::allocator<std::pair<QString const, std::shared_ptr<PJ::DataLoader> > > >::_M_destroy_node (__p=0x5567a26de470, this=<optimized out>) at /usr/include/c++/11/bits/stl_tree.h:623
#16 std::_Rb_tree<QString, std::pair<QString const, std::shared_ptr<PJ::DataLoader> >, std::_Select1st<std::pair<QString const, std::shared_ptr<PJ::DataLoader> > >, std::less<QString>, std::allocator<std::pair<QString const, std::shared_ptr<PJ::DataLoader> > > >::_M_drop_node (__p=0x5567a26de470, this=<optimized out>) at /usr/include/c++/11/bits/stl_tree.h:631
#17 std::_Rb_tree<QString, std::pair<QString const, std::shared_ptr<PJ::DataLoader> >, std::_Select1st<std::pair<QString const, std::shared_ptr<PJ::DataLoader> > >, std::less<QString>, std::allocator<std::pair<QString const, std::shared_ptr<PJ::DataLoader> > > >::_M_erase (this=<optimized out>, __x=0x5567a26de470) at /usr/include/c++/11/bits/stl_tree.h:1891
#18 std::_Rb_tree<QString, std::pair<QString const, std::shared_ptr<PJ::DataLoader> >, std::_Select1st<std::pair<QString const, std::shared_ptr<PJ::DataLoader> > >, std::less<QString>, std::allocator<std::pair<QString const, std::shared_ptr<PJ::DataLoader> > > >::clear (this=0x5567a2032420) at /usr/include/c++/11/bits/stl_tree.h:1254
#19 std::map<QString, std::shared_ptr<PJ::DataLoader>, std::less<QString>, std::allocator<std::pair<QString const, std::shared_ptr<PJ::DataLoader> > > >::clear (this=0x5567a2032420)
    at /usr/include/c++/11/bits/stl_map.h:1134
#20 MainWindow::closeEvent (this=0x5567a2032230, event=<optimized out>) at /home/eprosima/projects/current/desktop/src/plotjuggler/plotjuggler_app/mainwindow.cpp:2655
#21 0x00007f1c7ee114ee in QWidget::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007f1c7edce713 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007f1c7e2dce3a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007f1c7ee0c800 in QWidgetPrivate::close_helper(QWidgetPrivate::CloseMode) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007f1c7ee2e128 in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007f1c7edce713 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#27 0x00007f1c7e2dce3a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007f1c7e6bff1d in QGuiApplicationPrivate::processCloseEvent(QWindowSystemInterfacePrivate::CloseEvent*) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#29 0x00007f1c7e698a2c in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#30 0x00007f1c79892d6e in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#31 0x00007f1c7d126d3b in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007f1c7d17b6c8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007f1c7d1243e3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007f1c7e3360b8 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#35 0x00007f1c7e2db75b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#36 0x00007f1c7e2e3cf4 in QCoreApplication::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#37 0x00005567a02c59dd in main (argc=<optimized out>, argv=<optimized out>) at /home/eprosima/projects/current/desktop/src/plotjuggler/plotjuggler_app/main.cpp:432

[MichaelOrlov]

@jparisu @facontidavide I have a fix for this issue in #784
Please review.