Segmentation fault when running tests in wayland-demos/clients

[Joshua Xing]

Hi all,
  I successfully start wayland compositor and keep on trying wayland-demos.
But when running any test in wayland-demos/clients, I get following error

libEGL debug: EGL search path is /home/joshua/install/lib/egl
libEGL debug: added egl_dri2 to module array
libEGL debug: added egl_glx to module array
Segmentation Fault

How could I solve this problem?

Thanks,
Joshua
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