For about 2 weeks now I'm getting a FlightGear crash deep in the OSG
internals on my laptop. I was hoping it would be a transient issue in OSG
and clear itself up, but so far that is not the case. The same code and
versions of everything run just fine on my desktop. I've got the most
current OSG, SimGear, and FlightGear updated from CVS/SVN head. I've done
make clean's just in case some garbage developed in my build tree. I've
tried to do all those things I would suggest to others if they have some odd
thing going on that other people don't seem to be seeing.
My laptop is a bit older dell latitude with 32Mb Nvidia card. I am running
Linux (Fedora Core 6) with the proprietary nvidia drivers. Nvidia driver
version is 1.0.9631 ... this is the most current version that supports my
graphics hardware. The OSG version ran great until a few weeks ago. The
plib version continues to run just fine on my laptop as it always has.
FlightGear starts up, shows a splash screen gets as far as showing
"initializing subsystems". When I run with --log-level-debug, I see that it
finishes loading the keyboard bindings. Then on the console it prints
"Splash screen progress setting up time & renderer" although this is never
drawn. Immediately after that it crashes trying to call sceneView->draw();
Here is the back trace:
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1208727824 (LWP 17599)]
0x0075cc4a in osg::GraphicsContext::releaseContext ()
from /usr/local/lib/libosg.so.12
(gdb) where
#0 0x0075cc4a in osg::GraphicsContext::releaseContext ()
from /usr/local/lib/libosg.so.12
#1 0x001e1dcf in osgUtil::RenderStage::draw ()
from /usr/local/lib/libosgUtil.so.12
#2 0x001dd5ae in osgUtil::RenderStage::drawPreRenderStages ()
from /usr/local/lib/libosgUtil.so.12
#3 0x001e95a4 in osgUtil::SceneView::draw ()
from /usr/local/lib/libosgUtil.so.12
#4 0x08063c8c in FGRenderer::update (refresh_camera_settings=true)
at renderer.cxx:577
#5 0x08061c6c in FGRenderer::update () at renderer.hxx:41
#6 0x080a6c41 in fgOSMainLoop () at fg_os_sdl.cxx:249
#7 0x0805d027 in fgMainInit (argc=2, argv=0xbfdb2294) at main.cxx:1071
#8 0x0805c1aa in main (argc=2, argv=0xbfdb2294) at bootstrap.cxx:220
This is gdb, so I'm not confident that it has the osg function calls
correctly identified.
Does any one have any suggestions or ideas? It is a problem for me if I
cannot run FlightGear on my laptop here. :-(
Curt.
--
Curtis Olson - University of Minnesota - FlightGear Project
http://baron.flightgear.org/~curt/ http://www.humanfirst.umn.edu/
http://www.flightgear.org
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