pthread_cond_wait always return EINVAL

Hi,
 
    I'm running 3.2. and I'm having problem to get pthread to work.
 
    Here's part of my code:
 
    {
    ....
    assert(pthread_mutex_init(&gMutex, NULL) == 0);
    assert(pthread_cond_init(&gCond, NULL) == 0);
    assert(pthread_create(&myThread, NULL, ThreadMain, NULL) == 0);
    ...
    }
 
    void* ThreadMain(void* arg)
    {
        ....
        error = pthread_cond_wait(&gCond, &gMutex);
        ^
        error always = EINVAL (22).  This is my very first call that
uses gCond.
    }
 
    I printed out gCond, it looks good.  Can someone tell me what I've
done wrong?  Thanks!
 
Siew
 
 
 
 
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-stable" in the body of the message