DrawThreadPerContext

(gdb) r
Starting program: /home/clement/fgfs/install/flightgear/bin/fgfs --fg-root=/home/clement/fgfs/install/flightgear/bin/../fgdata/
warning: no loadable sections found in added symbol-file system-supplied DSO at 0x7ffff7ffa000
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7ffff0e88700 (LWP 11754)]
[Thread 0x7ffff0e88700 (LWP 11754) exited]
[New Thread 0x7ffff0e88700 (LWP 11755)]
[Thread 0x7ffff0e88700 (LWP 11755) exited]
[New Thread 0x7ffff0e88700 (LWP 11756)]
[Thread 0x7ffff0e88700 (LWP 11756) exited]
[New Thread 0x7ffff0e88700 (LWP 11757)]
Enabling ATI viewport hack
[New Thread 0x7fffefab2700 (LWP 11759)]
[Thread 0x7ffff0e88700 (LWP 11757) exited]
[New Thread 0x7ffff0e88700 (LWP 11760)]
Starting automatic scenery download/synchronization. Using built-in SVN support. Directory: '/home/clement/fgfs/Scenery/terrasync'.
[New Thread 0x7fffb7bfc700 (LWP 11761)]
[Thread 0x7ffff0e88700 (LWP 11760) exited]
[New Thread 0x7ffff0e88700 (LWP 11762)]
[New Thread 0x7fffb6bf9700 (LWP 11763)]
[New Thread 0x7fffa0966700 (LWP 11764)]
[Thread 0x7fffa0966700 (LWP 11764) exited]
[New Thread 0x7fffa0966700 (LWP 11765)]
[Thread 0x7fffa0966700 (LWP 11765) exited]
[New Thread 0x7fffa0966700 (LWP 11766)]
[New Thread 0x7fff97fff700 (LWP 11767)]
[Thread 0x7ffff0e88700 (LWP 11762) exited]
[New Thread 0x7ffff0e88700 (LWP 11768)]
environment init
Loading local weather routines...
[New Thread 0x7fff9734c700 (LWP 11769)]
[New Thread 0x7fff96b4b700 (LWP 11770)]
[New Thread 0x7fff95d2f700 (LWP 11771)]
[New Thread 0x7fff9552e700 (LWP 11772)]
Emergency Locator Transmitter (ELT) loaded
Electrical System ... OK

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffefab2700 (LWP 11759)]
0x000000000168180a in std::vector<SGSharedPtr<SGExpression<bool> >, std::allocator<SGSharedPtr<SGExpression<bool> > > >::operator[] (this=0x70e203d070e1e4c, __n=0) at /usr/include/c++/4.7/bits/stl_vector.h:766
766	      { return *(this->_M_impl._M_start + __n); }
(gdb) s
[Thread 0x7fffa0966700 (LWP 11766) exited]
[Thread 0x7fff9552e700 (LWP 11772) exited]
[Thread 0x7fff96b4b700 (LWP 11770) exited]
[Thread 0x7fff95d2f700 (LWP 11771) exited]
[Thread 0x7fff9734c700 (LWP 11769) exited]
[Thread 0x7ffff0e88700 (LWP 11768) exited]
[Thread 0x7fff97fff700 (LWP 11767) exited]
[Thread 0x7fffb6bf9700 (LWP 11763) exited]
[Thread 0x7fffb7bfc700 (LWP 11761) exited]
[Thread 0x7ffff7fca780 (LWP 11753) exited]

Program terminated with signal SIGSEGV, Segmentation fault.
The program no longer exists.