(gdb) run
Starting program: /build/build/Apps/ValidationTests/ValidationTests
warning: Error disabling address space randomization: Operation not permitted
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7f4a88167640 (LWP 1391)]
Thread 1 "ValidationTests" received signal SIGSEGV, Segmentation fault.
0x000000000040e197 in main () at ../Apps/ValidationTests/X11/App.cpp:116
116 int32_t screen = DefaultScreen(display);
I had to remove the ribbon morphing test also because of a similar error. Then several more tests run until I get.
terminate called after throwing an instance of 'std::runtime_error'
what(): Current frame cannot be started before prior frame has been finished.
Aborted