BUG: OpenCPN crash during import of oeSENC chart from ochart.org

[stygge-ulv]

During attempt to refresh/import my danish oeSENC chart (which was manually downloaded and installed) using the oesenc 2.7 plugin OpenCPN consistently crash with a core dump.
Both OpenCPN and oeSENC plugins were downloaded from github yesterday and compiled with cmake option -DCMAKE_BUILD_TYPE=Debug. I have included a backtrack trace of the core dump using the GNU debugger. Hope this can help alleviate this bug.
Platform. Debian 9.6 on Intel CPU

gdb /usr/bin/opencpn ./core
GNU gdb (Debian 7.12-6) 7.12.0.20161007-git
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Reading symbols from /usr/bin/opencpn...(no debugging symbols found)...done.
[New LWP 19361]
[New LWP 19558]
[New LWP 19559]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `opencpn'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x00005650a6f0a10b in ?? ()
[Current thread is 1 (Thread 0x7fb8b8b8da40 (LWP 19361))]
(gdb) bt
#0 0x00005650a6f0a10b in ?? ()
#1 0x00005650a6f0a1a2 in ?? ()
#2 0x00005650a6f2bba3 in std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2>::_M_release() ()
#3 0x00005650a6f2aa83 in std::__shared_count<(__gnu_cxx::_Lock_policy)2>::__shared_count() ()
#4 0x00005650a6f2869a in std::__shared_ptr<wxCurlBase, (__gnu_cxx::_Lock_policy)2>::__shared_ptr() ()
#5 0x00005650a6f2bc59 in std::__shared_ptr<wxCurlBase, (__gnu_cxx::_Lock_policy)2>::operator=(std::__shared_ptr<wxCurlBase, (__gnu_cxx::_Lock_policy)2>&&) ()
#6 0x00005650a6f2aac2 in std::shared_ptr::operator=(std::shared_ptr&&) ()
#7 0x00005650a704853d in wxCurlBaseThread::SetURL(wxString const&, std::shared_ptr) ()
#8 0x00005650a704837f in wxCurlBaseThread::SetURL(wxString const&) ()
#9 0x00007fb8a1d6404e in doDownload(oeSencChartPanel*, int) () from /usr/lib/opencpn/liboesenc_pi.so
#10 0x00007fb8a1d6c2f2 in shopPanel::doDownloadGui() () from /usr/lib/opencpn/liboesenc_pi.so
#11 0x00007fb8a1d6b731 in shopPanel::OnButtonInstall(wxCommandEvent&) () from /usr/lib/opencpn/liboesenc_pi.so
#12 0x00007fb8b402a40e in wxAppConsoleBase::CallEventHandler(wxEvtHandler*, wxEventFunctor&, wxEvent&) const () from /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0
#13 0x00007fb8b41afea5 in wxEvtHandler::ProcessEventIfMatchesId(wxEventTableEntryBase const&, wxEvtHandler*, wxEvent&) ()
from /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0
#14 0x00007fb8b41aff9b in wxEventHashTable::HandleEvent(wxEvent&, wxEvtHandler*) () from /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0
#15 0x00007fb8b41b034b in wxEvtHandler::TryHereOnly(wxEvent&) () from /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0
#16 0x00007fb8b41b03d3 in wxEvtHandler::ProcessEventLocally(wxEvent&) () from /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0
#17 0x00007fb8b41b0435 in wxEvtHandler::ProcessEvent(wxEvent&) () from /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0
#18 0x00007fb8b48ee2f8 in wxWindowBase::TryAfter(wxEvent&) () from /usr/lib/x86_64-linux-gnu/libwx_gtk2u_core-3.0.so.0
#19 0x00007fb8b41b01a7 in wxEvtHandler::SafelyProcessEvent(wxEvent&) () from /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0
#20 0x00007fb8b474f7d7 in ?? () from /usr/lib/x86_64-linux-gnu/libwx_gtk2u_core-3.0.so.0
#21 0x00007fb8b81f5f75 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#22 0x00007fb8b8208053 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#23 0x00007fb8b8210bdc in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#24 0x00007fb8b8210fbf in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#25 0x00007fb8b62030c5 in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#26 0x00007fb8b81f5f75 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#27 0x00007fb8b820795c in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#28 0x00007fb8b8210bdc in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#29 0x00007fb8b8210fbf in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#30 0x00007fb8b6202029 in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#31 0x00007fb8b62a77bc in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#32 0x00007fb8b81f5f75 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#33 0x00007fb8b820837d in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#34 0x00007fb8b821067f in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#35 0x00007fb8b8210fbf in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#36 0x00007fb8b63bf8ac in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#37 0x00007fb8b62a5f84 in gtk_propagate_event () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#38 0x00007fb8b62a633b in gtk_main_do_event () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#39 0x00007fb8b6819cbc in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
#40 0x00007fb8b84837f7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#41 0x00007fb8b8483a60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
---Type to continue, or q to quit---
#42 0x00007fb8b8483d82 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#43 0x00007fb8b62a53b7 in gtk_main () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#44 0x00007fb8b46d9e65 in wxGUIEventLoop::DoRun() () from /usr/lib/x86_64-linux-gnu/libwx_gtk2u_core-3.0.so.0
#45 0x00007fb8b406c27b in wxEventLoopBase::Run() () from /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0
#46 0x00007fb8b475cbcd in wxDialog::ShowModal() () from /usr/lib/x86_64-linux-gnu/libwx_gtk2u_core-3.0.so.0
#47 0x00005650a6c7fd0f in MyFrame::DoOptionsDialog() ()
#48 0x00005650a6c77df4 in MyFrame::DoSettings() ()
#49 0x00005650a6c76938 in MyFrame::OnToolLeftClick(wxCommandEvent&) ()
#50 0x00007fb8b402a40e in wxAppConsoleBase::CallEventHandler(wxEvtHandler*, wxEventFunctor&, wxEvent&) const () from /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0
#51 0x00007fb8b41afea5 in wxEvtHandler::ProcessEventIfMatchesId(wxEventTableEntryBase const&, wxEvtHandler*, wxEvent&) ()
from /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0
#52 0x00007fb8b41aff9b in wxEventHashTable::HandleEvent(wxEvent&, wxEvtHandler*) () from /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0
#53 0x00007fb8b41b034b in wxEvtHandler::TryHereOnly(wxEvent&) () from /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0
#54 0x00007fb8b41b0153 in wxEvtHandler::DoTryChain(wxEvent&) () from /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0
#55 0x00007fb8b41b0435 in wxEvtHandler::ProcessEvent(wxEvent&) () from /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0
#56 0x00007fb8b41b0ef3 in wxEvtHandler::ProcessPendingEvents() () from /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0
#57 0x00007fb8b402cbff in wxAppConsoleBase::ProcessPendingEvents() () from /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0
#58 0x00007fb8b46b9e0a in wxApp::DoIdle() () from /usr/lib/x86_64-linux-gnu/libwx_gtk2u_core-3.0.so.0
#59 0x00007fb8b46b9ef3 in ?? () from /usr/lib/x86_64-linux-gnu/libwx_gtk2u_core-3.0.so.0
#60 0x00007fb8b84836aa in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#61 0x00007fb8b8483a60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#62 0x00007fb8b8483d82 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#63 0x00007fb8b62a53b7 in gtk_main () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#64 0x00007fb8b46d9e65 in wxGUIEventLoop::DoRun() () from /usr/lib/x86_64-linux-gnu/libwx_gtk2u_core-3.0.so.0
#65 0x00007fb8b406c27b in wxEventLoopBase::Run() () from /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0
#66 0x00007fb8b4031776 in wxAppConsoleBase::MainLoop() () from /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0
#67 0x00007fb8b40bdcd0 in wxEntry(int&, wchar_t**) () from /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0
#68 0x00005650a6c6782a in main ()
(gdb)

[bdbcat]

Corrected in github oesenc_pi master now.
Thanks

[stygge-ulv]

Please let me know if the kind of debug trace like the one I sent is helpful in finding the problem. I could not get it working properly with symbols and code snippets so I was wondering if it is of any use ?

[nohal]

Yes, it is useful, usually the best way to isolate the problem.