Objects of type mutex_t and pthread_mutex_t must start at 8-byte aligned addresses. Applications that do not satisfy this requirement fail. The following error message is displayed:
*** _THREAD_ERROR_DETECTION: lock usage error detected *** ... "mutex is misaligned" OR: "condvar is misaligned"
Workaround: Setting the environment variable to the following values causes alignment errors to be reported on stderr:
Users should test their applications with the THREAD_ERROR_DETECTION environment variable set to one of these values and request corrections to noncompliant applications.