hi

I have a sporadic failing pthread_spin_init() with errno=EBUSY, where the spinner is located in a piece of ram to be 
shared with another process (PTHREAD_PROCESS_SHARED flag is used, for this reason).

Can you tell me the possible reason for EBUSY error?

By the way: I 0-memset the spinner area right before calling pthread_spin_init().

thanks!
Davide