The pthread_barrier_init manpage specifies that count must be > 0. indeed, pthread_barrier_init() is returning EINVAL, and swrast_dri is ignoring this return value. So this is a latent bug in mesa.
The pthread_ barrier_ init manpage specifies that count must be > 0. indeed, pthread_ barrier_ init() is returning EINVAL, and swrast_dri is ignoring this return value. So this is a latent bug in mesa.