Hi all,
sporadically my application crashes while destroying some WT objects.
The wt version involved is the 3.1.9 with the applied patch I have submitted
on the message on this forum:  "Leakage in WObject.C" (you applied it
as well on git).

Here in attachment the four back traces.

Gaetano

-- 
cpp-today.blogspot.com
#0  boost::intrusive::list_node_traits<void*>::get_next (this=0x7f9514012840, 
__in_chrg=<value optimized out>) at 
/usr/include/boost/intrusive/detail/list_node.hpp:54
#1  
boost::intrusive::circular_list_algorithms<boost::intrusive::list_node_traits<void*>
 >::unlink (this=0x7f9514012840, __in_chrg=<value optimized out>) at 
/usr/include/boost/intrusive/circular_list_algorithms.hpp:136
#2  pop_front_and_dispose<boost::intrusive::detail::null_disposer> 
(this=0x7f9514012840, __in_chrg=<value optimized out>) at 
/usr/include/boost/intrusive/list.hpp:324
#3  
boost::intrusive::list_impl<boost::intrusive::listopt<boost::intrusive::detail::base_hook_traits<Wt::EventSignalBase,
 boost::intrusive::list_node_traits<void*>, 
(boost::intrusive::link_mode_type)1, boost::intrusive::default_tag, 1>, 
unsigned long, true> >::pop_front (this=0x7f9514012840, __in_chrg=<value 
optimized out>) at /usr/include/boost/intrusive/list.hpp:307
#4  ~WWidget (this=0x7f9514012840, __in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WWidget.C:39
#5  0x00007f9546255a9d in ~WContainerWidget (this=0x7f9514012840, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WContainerWidget.C:67
#6  0x00007f95463a22e3 in ~WWebWidget (this=0x7f951400aca0, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#7  0x00007f9546255a9d in ~WContainerWidget (this=0x7f951400aca0, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WContainerWidget.C:67
#8  0x00007f95463a22e3 in ~WWebWidget (this=0x7f95140123d0, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#9  0x00007f9546255a9d in ~WContainerWidget (this=0x7f95140123d0, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WContainerWidget.C:67
#10 0x00007f9546254daf in ~WCompositeWidget (this=0x7f9514008630, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WCompositeWidget.C:43
#11 0x00007f954749a15f in ~WTreeTable (this=0x7f9514008630, __in_chrg=<value 
optimized out>) at /usr/local/include/Wt/WTreeTable:94
#12 ~FileTreeTable (this=0x7f9514008630, __in_chrg=<value optimized out>) at 
/home/essa/EssaRadio/src/Libraries/WebPanel/filetreetable.h:39
#13 0x00007f95463a22e3 in ~WWebWidget (this=0x7f95240bd6e0, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#14 0x00007f95478d2bdd in WebReceiverWidget::~WebReceiverWidget() () from 
/opt/essa-suite/lib/libwebinterfacelib.so
#15 0x00007f95463a22e3 in ~WWebWidget (this=0x7f95240d7d50, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#16 0x00007f9546255a9d in ~WContainerWidget (this=0x7f95240d7d50, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WContainerWidget.C:67
#17 0x00007f95462daabd in ~WMenuItem (this=0x7f95240d7c90, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WMenuItem.C:62
#18 0x00007f954634d393 in ~TabWidgetItem (this=0x7f9514012840, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WTabWidget.C:25
#19 0x00007f95462d4e51 in ~WMenu (this=0x7f95240bc780, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WMenu.C:84
#20 0x00007f95463a22e3 in ~WWebWidget (this=0x7f95240bcf10, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#21 0x00007f9546255a9d in ~WContainerWidget (this=0x7f95240bcf10, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WContainerWidget.C:67
#22 0x00007f95463a22e3 in ~WWebWidget (this=0x7f95240bc430, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#23 0x00007f9546255a9d in ~WContainerWidget (this=0x7f95240bc430, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WContainerWidget.C:67
#24 0x00007f9546254daf in ~WCompositeWidget (this=0x7f95240bc2c0, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WCompositeWidget.C:43
#25 0x00007f954634df48 in ~WTabWidget (this=0x7f95240bc2c0, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WTabWidget:78
#26 0x00007f95463a22e3 in ~WWebWidget (this=0x7f95240bc1a0, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#27 0x00007f95478f8c07 in ~WidgetUtils (this=0x7f9514012840, __in_chrg=<value 
optimized out>) at 
/home/essa/EssaRadio/src/Libraries/WebInterfaceLib/widgetutils.h:38
#28 0x00007f95478315d4 in ~EssaWebInterface (this=0x7f9524060740, 
__in_chrg=<value optimized out>) at 
/home/essa/EssaRadio/src/Libraries/WebInterfaceLib/essawebinterface.cpp:142
#29 0x00007f9547844a17 in ~EssaWebInterfaceDemodulator (this=0x7f9514012840, 
__in_chrg=<value optimized out>) at 
/home/essa/EssaRadio/src/Libraries/WebInterfaceLib/essawebinterfacedemodulator.cpp:68
#30 0x00007f954642124e in ~WebSession (this=0x7f952405fc80, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/web/WebSession.C:155

#0  0x00007f1c41b222db in std::_Rb_tree<boost::signals::detail::stored_group, 
std::pair<boost::signals::detail::stored_group const, 
std::list<boost::signals::detail::connection_slot_pair, 
std::allocator<boost::signals::detail::connection_slot_pair> > >, 
std::_Select1st<std::pair<boost::signals::detail::stored_group const, 
std::list<boost::signals::detail::connection_slot_pair, 
std::allocator<boost::signals::detail::connection_slot_pair> > > >, 
boost::function2<bool, boost::signals::detail::stored_group, 
boost::signals::detail::stored_group>, 
std::allocator<std::pair<boost::signals::detail::stored_group const, 
std::list<boost::signals::detail::connection_slot_pair, 
std::allocator<boost::signals::detail::connection_slot_pair> > > > 
>::_M_erase(std::_Rb_tree_node<std::pair<boost::signals::detail::stored_group 
const, std::list<boost::signals::detail::connection_slot_pair, 
std::allocator<boost::signals::detail::connection_slot_pair> > > >*) () from 
/usr/lib/libboost_signals.so.1.40.0
#1  0x00007f1c41b22c0c in 
boost::signals::detail::signal_base_impl::~signal_base_impl() () from 
/usr/lib/libboost_signals.so.1.40.0
#2  0x00007f1c41b235b2 in 
boost::detail::sp_counted_impl_p<boost::signals::detail::signal_base_impl>::dispose()
 () from /usr/lib/libboost_signals.so.1.40.0
#3  0x00007f1c41b22d99 in boost::signals::detail::signal_base::~signal_base() 
() from /usr/lib/libboost_signals.so.1.40.0
#4  0x00007f1c5454ba95 in ~signal0 (this=0x7f1c200ed6b0, __in_chrg=<value 
optimized out>) at /usr/include/boost/signals/signal_template.hpp:142
#5  ~EventSignalBase (this=0x7f1c200ed6b0, __in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WSignal.C:271
#6  0x00007f1c54448ea7 in ~EventSignal (this=0x7f1c200ed6b0, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WSignal:592
#7  0x00007f1c545ea315 in ~WWidget (this=0x7f1c200cdca0, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWidget.C:41
#8  0x00007f1c5454f3ff in ~WSlider (this=0x7f1c200cdca0, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WSlider.C:337
#9  0x00007f1c545d82e3 in ~WWebWidget (this=0x7f1c200ccc00, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#10 0x00007f1c5448ba9d in ~WContainerWidget (this=0x7f1c200ccc00, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WContainerWidget.C:67
#11 0x00007f1c545d82e3 in ~WWebWidget (this=0x7f1c200cc900, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#12 0x00007f1c5448ba9d in ~WContainerWidget (this=0x7f1c200cc900, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WContainerWidget.C:67
#13 0x00007f1c545d82e3 in ~WWebWidget (this=0x7f1c200ca1b0, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#14 0x00007f1c5448ba9d in ~WContainerWidget (this=0x7f1c200ca1b0, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WContainerWidget.C:67
#15 0x00007f1c545d82e3 in ~WWebWidget (this=0x7f1c200c9f60, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#16 0x00007f1c5458bf41 in Wt::WTemplate::~WTemplate() () from 
/usr/local/lib/libwt.so.28
#17 0x00007f1c5448adaf in ~WCompositeWidget (this=0x7f1c200c9d80, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WCompositeWidget.C:43
#18 0x00007f1c556b0ab5 in ~WPanel (this=0x7f1c200c9d80, __in_chrg=<value 
optimized out>) at /usr/local/include/Wt/WPanel:58
#19 ~AdcDynamicPanel (this=0x7f1c200c9d80, __in_chrg=<value optimized out>) at 
/home/essa/EssaRadio/project/linux/cmake/../../../src/Libraries/WebPanel/adcdynamicpanel.h:40
#20 0x00007f1c5448b7f4 in Wt::WContainerWidget::clear (this=0x7f1c200af140) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WContainerWidget.C:272
#21 0x00007f1c556da49b in ~RadioMonitor (this=0x7f1c34017138, __in_chrg=<value 
optimized out>) at 
/home/essa/EssaRadio/src/Libraries/WebPanel/radiomonitorwidget.cpp:66
#22 0x00007f1c545d82e3 in ~WWebWidget (this=0x7f1c200d2f80, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#23 0x00007f1c5448ba9d in ~WContainerWidget (this=0x7f1c200d2f80, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WContainerWidget.C:67
#24 0x00007f1c54510abd in ~WMenuItem (this=0x7f1c200d2e80, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WMenuItem.C:62
#25 0x00007f1c54583393 in ~TabWidgetItem (this=0x7f1c34017138, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WTabWidget.C:25
#26 0x00007f1c5450ae51 in ~WMenu (this=0x7f1c20078490, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WMenu.C:84
#27 0x00007f1c545d82e3 in ~WWebWidget (this=0x7f1c20078c20, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#28 0x00007f1c5448ba9d in ~WContainerWidget (this=0x7f1c20078c20, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WContainerWidget.C:67
#29 0x00007f1c545d82e3 in ~WWebWidget (this=0x7f1c20078120, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#30 0x00007f1c5448ba9d in ~WContainerWidget (this=0x7f1c20078120, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WContainerWidget.C:67
#31 0x00007f1c5448adaf in ~WCompositeWidget (this=0x7f1c20077fb0, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WCompositeWidget.C:43
#32 0x00007f1c54583f48 in ~WTabWidget (this=0x7f1c20077fb0, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WTabWidget:78
#33 0x00007f1c5575cc29 in ~WebAlwaysOn (this=0x7f1c20077db0, __in_chrg=<value 
optimized out>) at 
/home/essa/EssaRadio/src/Libraries/WebPanel/webalwayson.cpp:92
#34 0x00007f1c545d82e3 in ~WWebWidget (this=0x7f1c200d4b00, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#35 0x00007f1c5448ba9d in ~WContainerWidget (this=0x7f1c200d4b00, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WContainerWidget.C:67
#36 0x00007f1c54510abd in ~WMenuItem (this=0x7f1c200d4a40, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WMenuItem.C:62
#37 0x00007f1c54583393 in ~TabWidgetItem (this=0x7f1c34017138, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WTabWidget.C:25
#38 0x00007f1c5450ae51 in ~WMenu (this=0x7f1c20071d20, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WMenu.C:84
#39 0x00007f1c545d82e3 in ~WWebWidget (this=0x7f1c20072480, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#40 0x00007f1c5448ba9d in ~WContainerWidget (this=0x7f1c20072480, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WContainerWidget.C:67
#41 0x00007f1c545d82e3 in ~WWebWidget (this=0x7f1c20071a40, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#42 0x00007f1c5448ba9d in ~WContainerWidget (this=0x7f1c20071a40, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WContainerWidget.C:67
#43 0x00007f1c5448adaf in ~WCompositeWidget (this=0x7f1c20071940, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WCompositeWidget.C:43
#44 0x00007f1c54583f48 in ~WTabWidget (this=0x7f1c20071940, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WTabWidget:78
#45 0x00007f1c545d82e3 in ~WWebWidget (this=0x7f1c20005820, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#46 0x00007f1c5448ba9d in ~WContainerWidget (this=0x7f1c20005820, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WContainerWidget.C:67
#47 0x00007f1c545d82e3 in ~WWebWidget (this=0x7f1c200052e0, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#48 0x00007f1c5448ba9d in ~WContainerWidget (this=0x7f1c200052e0, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WContainerWidget.C:67
#49 0x00007f1c544418de in ~WApplication (this=0x7f1c20002e00, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WApplication.C:324
#50 0x00007f1c55a67644 in ~WtApplication (this=0x7f1c20002e00, __in_chrg=<value 
optimized out>) at 
/home/essa/EssaRadio/project/linux/cmake/../../../src/Libraries/Support/wtapplication.h:25
#51 ~EssaWebInterface (this=0x7f1c20002e00, __in_chrg=<value optimized out>) at 
/home/essa/EssaRadio/src/Libraries/WebInterfaceLib/essawebinterface.cpp:143
#52 0x00007f1c55a7aa17 in ~EssaWebInterfaceDemodulator (this=0x7f1c34017138, 
__in_chrg=<value optimized out>) at 
/home/essa/EssaRadio/src/Libraries/WebInterfaceLib/essawebinterfacedemodulator.cpp:68
#53 0x00007f1c5465724e in ~WebSession (this=0x16960df0, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/web/WebSession.C:155

#0  0x00007fa3f69068b3 in __exchange_and_add (this=0x22a094c8, __in_chrg=<value 
optimized out>) at /usr/include/c++/4.4/ext/atomicity.h:46
#1  __exchange_and_add_dispatch (this=0x22a094c8, __in_chrg=<value optimized 
out>) at /usr/include/c++/4.4/ext/atomicity.h:79
#2  std::string::_Rep::_M_dispose (this=0x22a094c8, __in_chrg=<value optimized 
out>) at /usr/include/c++/4.4/bits/basic_string.h:229
#3  ~basic_string (this=0x22a094c8, __in_chrg=<value optimized out>) at 
/usr/include/c++/4.4/bits/basic_string.h:498
#4  ~WString (this=0x22a094c8, __in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WString.C:97
#5  0x00007fa3f69209eb in ~WTableColumn (this=0x22a09450, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WTableColumn.C:27
#6  0x00007fa3f691ee97 in ~WTable (this=0x25a781a0, __in_chrg=<value optimized 
out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WTable.C:34
#7  0x00007fa3f6823daf in ~WCompositeWidget (this=0x27f95720, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WCompositeWidget.C:43
#8  0x00007fa3f7a6df39 in FileTreeTableNode::~FileTreeTableNode() () from 
/opt/essa-suite/lib/libwebpanel.so
#9  0x00007fa3f694459f in ~WTreeNode (this=0x1b9c9a10, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WTreeNode.C:99
#10 0x00007fa3f7a6df39 in FileTreeTableNode::~FileTreeTableNode() () from 
/opt/essa-suite/lib/libwebpanel.so
#11 0x00007fa3f694459f in ~WTreeNode (this=0x25af3180, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WTreeNode.C:99
#12 0x00007fa3f7a6df39 in FileTreeTableNode::~FileTreeTableNode() () from 
/opt/essa-suite/lib/libwebpanel.so
#13 0x00007fa3f694459f in ~WTreeNode (this=0x22bfc780, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WTreeNode.C:99
#14 0x00007fa3f6942317 in ~SentinelTreeNode (this=0x7f00e4dfc140, 
__in_chrg=<value optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WTree.C:89
#15 0x00007fa3f6823daf in ~WCompositeWidget (this=0x25a412a0, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WCompositeWidget.C:43
#16 0x00007fa3f6942c66 in Wt::WTree::~WTree() () from /usr/local/lib/libwt.so.28
#17 0x00007fa3f69712e3 in ~WWebWidget (this=0x1839a810, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#18 0x00007fa3f6824a9d in ~WContainerWidget (this=0x1839a810, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WContainerWidget.C:67
#19 0x00007fa3f69712e3 in ~WWebWidget (this=0x1b9ca210, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#20 0x00007fa3f6824a9d in ~WContainerWidget (this=0x1b9ca210, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WContainerWidget.C:67
#21 0x00007fa3f6823daf in ~WCompositeWidget (this=0x18392e60, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WCompositeWidget.C:43
#22 0x00007fa3f7a6915f in ~WTreeTable (this=0x18392e60, __in_chrg=<value 
optimized out>) at /usr/local/include/Wt/WTreeTable:94
#23 ~FileTreeTable (this=0x18392e60, __in_chrg=<value optimized out>) at 
/home/essa/EssaRadio/src/Libraries/WebPanel/filetreetable.h:39
#24 0x00007fa3f69712e3 in ~WWebWidget (this=0x23289780, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#25 0x00007fa3f7ea1bdd in WebReceiverWidget::~WebReceiverWidget() () from 
/opt/essa-suite/lib/libwebinterfacelib.so
#26 0x00007fa3f69712e3 in ~WWebWidget (this=0x25a40420, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#27 0x00007fa3f6824a9d in ~WContainerWidget (this=0x25a40420, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WContainerWidget.C:67
#28 0x00007fa3f68a9abd in ~WMenuItem (this=0x25a3fc90, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WMenuItem.C:62
#29 0x00007fa3f691c393 in ~TabWidgetItem (this=0x7f00e4dfc140, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WTabWidget.C:25
#30 0x00007fa3f68a3e51 in ~WMenu (this=0x23288820, __in_chrg=<value optimized 
out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WMenu.C:84
#31 0x00007fa3f69712e3 in ~WWebWidget (this=0x23288fb0, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#32 0x00007fa3f6824a9d in ~WContainerWidget (this=0x23288fb0, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WContainerWidget.C:67
#33 0x00007fa3f69712e3 in ~WWebWidget (this=0x232884d0, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#34 0x00007fa3f6824a9d in ~WContainerWidget (this=0x232884d0, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WContainerWidget.C:67
#35 0x00007fa3f6823daf in ~WCompositeWidget (this=0x23288360, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WCompositeWidget.C:43
#36 0x00007fa3f691cf48 in ~WTabWidget (this=0x23288360, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WTabWidget:78
#37 0x00007fa3f69712e3 in ~WWebWidget (this=0x23288240, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#38 0x00007fa3f7ec7c07 in ~WidgetUtils (this=0x7f00e4dfc140, __in_chrg=<value 
optimized out>) at 
/home/essa/EssaRadio/src/Libraries/WebInterfaceLib/widgetutils.h:38
#39 0x00007fa3f7e005d4 in ~EssaWebInterface (this=0x22beed80, __in_chrg=<value 
optimized out>) at 
/home/essa/EssaRadio/src/Libraries/WebInterfaceLib/essawebinterface.cpp:142
#40 0x00007fa3f7e13a17 in ~EssaWebInterfaceDemodulator (this=0x7f00e4dfc140, 
__in_chrg=<value optimized out>) at 
/home/essa/EssaRadio/src/Libraries/WebInterfaceLib/essawebinterfacedemodulator.cpp:68
#41 0x00007fa3f69f024e in ~WebSession (this=0x7fa2ee5624f0, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/web/WebSession.C:155

#0  0x00007f720564ff27 in std::_Rb_tree<boost::signals::detail::stored_group, 
std::pair<boost::signals::detail::stored_group const, 
std::list<boost::signals::detail::connection_slot_pair, 
std::allocator<boost::signals::detail::connection_slot_pair> > >, 
std::_Select1st<std::pair<boost::signals::detail::stored_group const, 
std::list<boost::signals::detail::connection_slot_pair, 
std::allocator<boost::signals::detail::connection_slot_pair> > > >, 
boost::function2<bool, boost::signals::detail::stored_group, 
boost::signals::detail::stored_group>, 
std::allocator<std::pair<boost::signals::detail::stored_group const, 
std::list<boost::signals::detail::connection_slot_pair, 
std::allocator<boost::signals::detail::connection_slot_pair> > > > 
>::_M_erase(std::_Rb_tree_node<std::pair<boost::signals::detail::stored_group 
const, std::list<boost::signals::detail::connection_slot_pair, 
std::allocator<boost::signals::detail::connection_slot_pair> > > >*) () from 
/usr/lib/libboost_signals.so.1.40.0
#1  0x00007f7205650c0c in 
boost::signals::detail::signal_base_impl::~signal_base_impl() () from 
/usr/lib/libboost_signals.so.1.40.0
#2  0x00007f72056515b2 in 
boost::detail::sp_counted_impl_p<boost::signals::detail::signal_base_impl>::dispose()
 () from /usr/lib/libboost_signals.so.1.40.0
#3  0x00007f7205650d99 in boost::signals::detail::signal_base::~signal_base() 
() from /usr/lib/libboost_signals.so.1.40.0
#4  0x00007f7218079a95 in ~signal0 (this=0x17061fd8, __in_chrg=<value optimized 
out>) at /usr/include/boost/signals/signal_template.hpp:142
#5  ~EventSignalBase (this=0x17061fd8, __in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WSignal.C:271
#6  0x00007f721810dce7 in Wt::EventSignal<Wt::WMouseEvent>::~EventSignal() () 
from /usr/local/lib/libwt.so.28
#7  0x00007f7218118315 in ~WWidget (this=0x7f71643b0200, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWidget.C:41
#8  0x00007f72180194d1 in ~WImage (this=0x7f71643b0200, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WImage.C:85
#9  0x00007f72181062e3 in ~WWebWidget (this=0x7f71643aff40, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#10 0x00007f7217fb9a9d in ~WContainerWidget (this=0x7f71643aff40, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WContainerWidget.C:67
#11 0x00007f7217fb8daf in ~WCompositeWidget (this=0x7f71643afe90, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WCompositeWidget.C:43
#12 0x00007f7218018267 in ~WIconPair (this=0x7f71643b0bb8, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WIconPair:33
#13 0x00007f72180d95e5 in ~WTreeNode (this=0x7f71643af1a0, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WTreeNode.C:104
#14 0x00007f7219202f39 in FileTreeTableNode::~FileTreeTableNode() () from 
/opt/essa-suite/lib/libwebpanel.so
#15 0x00007f72180d959f in ~WTreeNode (this=0x7f71cc495ba0, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WTreeNode.C:99
#16 0x00007f7219202f39 in FileTreeTableNode::~FileTreeTableNode() () from 
/opt/essa-suite/lib/libwebpanel.so
#17 0x00007f72180d959f in ~WTreeNode (this=0x7f71642d0f70, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WTreeNode.C:99
#18 0x00007f7219202f39 in FileTreeTableNode::~FileTreeTableNode() () from 
/opt/essa-suite/lib/libwebpanel.so
#19 0x00007f72180d959f in ~WTreeNode (this=0x7f71cc405470, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WTreeNode.C:99
#20 0x00007f72180d7317 in ~SentinelTreeNode (this=0x7f71643b0bb8, 
__in_chrg=<value optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WTree.C:89
#21 0x00007f7217fb8daf in ~WCompositeWidget (this=0x7f71cc405370, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WCompositeWidget.C:43
#22 0x00007f72180d7c66 in Wt::WTree::~WTree() () from /usr/local/lib/libwt.so.28
#23 0x00007f72181062e3 in ~WWebWidget (this=0x7f71cc404790, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#24 0x00007f7217fb9a9d in ~WContainerWidget (this=0x7f71cc404790, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WContainerWidget.C:67
#25 0x00007f72181062e3 in ~WWebWidget (this=0x7f71ccd126a0, __in_chrg=<value 
optimized out>) at /root/ToInstall/wt-3.1.9a/src/Wt/WWebWidget.C:241
#26 0x00007f7217fb9a9d in ~WContainerWidget (this=0x7f71ccd126a0, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WContainerWidget.C:67
#27 0x00007f7217fb8daf in ~WCompositeWidget (this=0x7f71ccd12560, 
__in_chrg=<value optimized out>) at 
/root/ToInstall/wt-3.1.9a/src/Wt/WCompositeWidget.C:43
#28 0x00007f72191fe15f in ~WTreeTable (this=0x7f71ccd12560, __in_chrg=<value 
optimized out>) at /usr/local/include/Wt/WTreeTable:94

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