SIGSEGV at RenderGLLs with OpenGL

[lipixx]

Describe the bug
When zooming in the map having CM93 vector maps installed, OpenCPN is sluggish and finally segfaults.

To Reproduce
Steps to reproduce the behavior:

1. Start OpenCPN
2. Zoom in.

Expected behavior
Not to crash.

Screenshots

(gdb) bt
#0 0x00000000400b0b5a in ()
#1 0x00007fffba48e4c0 in () at /lib64/libnvidia-glcore.so.535.54.03
#2 0x00007fffba0f3042 in () at /lib64/libnvidia-glcore.so.535.54.03
#3 0x0000555555dd26c1 in s52plib::RenderGLLS(_ObjRazRules*, _Rules*, ViewPort*) [clone .part.0] [clone .isra.0] ()
#4 0x0000555555de1008 in s52plib::DoRenderObject(wxDC*, _ObjRazRules*, ViewPort*) [clone .part.0] [clone .isra.0] ()
#5 0x0000555555d98229 in s57chart::DoRenderRegionViewOnGL(wxGLContext const&, ViewPort const&, OCPNRegion const&, LLRegion const&, bool) [clone .constprop.0] ()
#6 0x0000555555c8d360 in cm93compchart::DoRenderRegionViewOnGL(wxGLContext const&, ViewPort const&, OCPNRegion const&, LLRegion const&) ()
#7 0x0000555555bc5b1c in glChartCanvas::RenderQuiltViewGL(ViewPort&, OCPNRegion const&) ()
#8 0x0000555555bc60ca in glChartCanvas::RenderCharts(ocpnDC&, OCPNRegion const&) ()
#9 0x0000555555bc8065 in glChartCanvas::Render() ()
#10 0x0000555555bb910e in glChartCanvas::OnPaint(wxPaintEvent&) ()
#11 0x00007ffff6f8fc5e in wxEvtHandler::ProcessEventIfMatchesId(wxEventTableEntryBase const&, wxEvtHandler*, wxEvent&) (entry=, handler=handler@entry=0x5555564ede70, event=...)
at ../src/common/event.cpp:1390
#12 0x00007ffff6f91b73 in wxEventHashTable::HandleEvent(wxEvent&, wxEvtHandler*) (this=, event=..., self=self@entry=0x5555564ede70) at ../src/common/event.cpp:996
#13 0x00007ffff6f91e69 in wxEvtHandler::TryHereOnly(wxEvent&) (this=this@entry=0x5555564ede70, event=...) at ../src/common/event.cpp:1587
#14 0x00007ffff6f91eff in wxEvtHandler::TryBeforeAndHere(wxEvent&) (event=..., this=0x5555564ede70) at ../include/wx/event.h:3692
#15 wxEvtHandler::ProcessEventLocally(wxEvent&) (this=0x5555564ede70, event=...) at ../src/common/event.cpp:1520
#16 0x00007ffff6f91fe2 in wxEvtHandler::ProcessEvent(wxEvent&) (this=0x5555564ede70, event=...) at ../src/common/event.cpp:1493
#17 0x00007ffff6f8feb3 in wxEvtHandler::SafelyProcessEvent(wxEvent&) (this=, event=) at ../src/common/event.cpp:1611
#18 0x00007ffff74cb4b3 in wxWindow::GTKSendPaintEvents(_cairo*) (this=this@entry=0x5555564ede70, cr=0x5555569a5920) at ../src/gtk/window.cpp:4289
#19 0x00007ffff7caf96c in wxGLCanvas::OnInternalIdle() (this=0x5555564ede70) at ../src/gtk/glcanvas.cpp:316
#20 0x00007ffff76349c0 in wxWindowBase::SendIdleEvents(wxIdleEvent&) (this=0x5555564ede70, event=...) at ../src/common/wincmn.cpp:2821
#21 0x00007ffff76349f8 in wxWindowBase::SendIdleEvents(wxIdleEvent&) (this=, event=...) at ../src/common/wincmn.cpp:2837
#22 0x00007ffff76349f8 in wxWindowBase::SendIdleEvents(wxIdleEvent&) (this=, event=...) at ../src/common/wincmn.cpp:2837
#23 0x00007ffff750144a in wxFrame::SendIdleEvents(wxIdleEvent&) (this=0x55555648fb10, event=...) at ../src/gtk/frame.cpp:182
#24 0x00007ffff753b885 in wxAppBase::ProcessIdle() (this=) at ../src/common/appcmn.cpp:375
#25 0x00007ffff748b4e8 in wxApp::DoIdle() (this=0x555556142c90) at ../src/gtk/app.cpp:159
#26 0x00007ffff748b637 in wxapp_idle_callback(gpointer) () at ../src/gtk/app.cpp:107
#27 0x00007ffff521439d in g_idle_dispatch (source=0x55556f826cf0, callback=0x7ffff748b620 <wxapp_idle_callback(gpointer)>, user_data=0x0) at ../glib/gmain.c:6163
#28 0x00007ffff521839c in g_main_dispatch (context=0x555556173ad0) at ../glib/gmain.c:3460
#29 g_main_context_dispatch (context=0x555556173ad0) at ../glib/gmain.c:4200
#30 0x00007ffff5276438 in g_main_context_iterate.isra.0 (context=0x555556173ad0, block=1, dispatch=1, self=) at ../glib/gmain.c:4276
#31 0x00007ffff521799f in g_main_loop_run (loop=0x555556398410) at ../glib/gmain.c:4479
#32 0x00007ffff5606975 in gtk_main () at ../gtk/gtkmain.c:1329
#33 0x00007ffff74a11f5 in wxGUIEventLoop::DoRun() (this=0x555556b5fae0) at ../src/gtk/evtloop.cpp:65
#34 0x00007ffff6eb9c7a in wxEventLoopBase::Run() (this=0x555556b5fae0) at ../src/common/evtloopcmn.cpp:78
#35 0x00007ffff6e9551d in wxAppConsoleBase::MainLoop() (this=0x555556142c90) at ../src/common/appbase.cpp:334
#36 0x00007ffff6eec832 in wxEntry(int&, wchar_t**) (argc=, argv=) at ../src/common/init.cpp:506
#37 0x0000555555788e1c in main ()

Desktop (please complete the following information if applicable):

• OS:

Linux llit 6.3.8-200.fc38.x86_64 #1 SMP PREEMPT_DYNAMIC Thu Jun 15 02:15:40 UTC 2023 x86_64 GNU/Linux
Fedora release 38 (Thirty Eight)

]# nvidia-smi
Wed Sep 20 18:51:32 2023
+---------------------------------------------------------------------------------------+
| NVIDIA-SMI 535.54.03 Driver Version: 535.54.03 CUDA Version: 12.2 |
|-----------------------------------------+----------------------+----------------------+
| GPU Name Persistence-M | Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap | Memory-Usage | GPU-Util Compute M. |
| | | MIG M. |
|=========================================+======================+======================|
| 0 NVIDIA GeForce GT 1030 Off | 00000000:07:00.0 On | N/A |
| 35% 41C P0 N/A / 30W | 749MiB / 2048MiB | 4% Default |
| | | N/A |
+-----------------------------------------+----------------------+----------------------+

Additional context
It may be an Nvidia issue. Recent driver versions broke compatibility with previous versions and maybe OpenCPN is compiled against older nvml.h versions? May not be the case.
e.g. https://forums.developer.nvidia.com/t/nvml-12-535-43-02-breaks-backwards-compatibility/254999/11

The workaround is to unset using OpenGL as in this screenshoot:

[lipixx]

taabf opencpn.txt

Uploading here a better gdb dump.

[leamas]

hm... Have you tried using the nouveau driver instead? That should show if it's about nvidia's driver.

[nohal]

@lipixx can you please try to enable OpenGL and then start OpenCPN from the terminal with mesa_glthread=false opencpn?