bash-4.3$ gdb glxgears
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Reading symbols from glxgears...(no debugging symbols found)...done.
(gdb) run
Starting program: /usr/X11R7/bin/glxgears
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/libthread_db.so.1".
libGL error: MESA-LOADER: failed to retrieve device information
MESA-LOADER: failed to retrieve device information
MESA-LOADER: failed to retrieve device information

Program received signal SIGSEGV, Segmentation fault.
0xf6c47e2d in ?? () from /usr/X11R7/lib/dri/virtio_gpu_dri.so
(gdb) bt full
#0  0xf6c47e2d in ?? () from /usr/X11R7/lib/dri/virtio_gpu_dri.so
No symbol table info available.
#1  0xf6c46b6b in ?? () from /usr/X11R7/lib/dri/virtio_gpu_dri.so
No symbol table info available.
#2  0xf6c4eaf1 in ?? () from /usr/X11R7/lib/dri/virtio_gpu_dri.so
No symbol table info available.
#3  0xf6a9579d in ?? () from /usr/X11R7/lib/dri/virtio_gpu_dri.so
No symbol table info available.
#4  0x08049907 in ?? ()
No symbol table info available.
#5  0x08049b80 in ?? ()
No symbol table info available.
#6  0x0804a140 in ?? ()
No symbol table info available.
#7  0x0804a40b in ?? ()
No symbol table info available.
#8  0xf7bee983 in __libc_start_main () from /lib/libc.so.6
No symbol table info available.
#9  0x08048f31 in ?? ()
No symbol table info available.
(gdb)