[Xcb] lissajoux : random crash

[Vincent Torri]

hello,

during some tests with rograms in xcb-demos, i've remarked that lissajoux
crashes randomly, when it does not use shm (I repeat several times the
programs to get the crash). I've tried with valgrind, and it does not
crash.

The errors is located line 63 : datap->image is NULL

gdb does not gives a lot of informations.

Does someone have the same problem ?

Vincent