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Recursive mutex (statically initialized).
Recursive mutex (initialized via mutex attributes).
Error checking mutex.
second lock call failed !
Mutex not locked by calling thread: mutex 0x........, recursion count 0, owner 1.
   at 0x........: pthread_mutex_unlock (drd_pthread_intercepts.c:?)
   by 0x........: lock_twice (recursive_mutex.c:?)
   by 0x........: main (recursive_mutex.c:?)
mutex 0x........ was first observed at:
   at 0x........: pthread_mutex_init (drd_pthread_intercepts.c:?)
   by 0x........: main (recursive_mutex.c:?)
second unlock call failed !
Non-recursive mutex.
second lock call failed !
Mutex not locked by calling thread: mutex 0x........, recursion count 0, owner 1.
   at 0x........: pthread_mutex_unlock (drd_pthread_intercepts.c:?)
   by 0x........: lock_twice (recursive_mutex.c:?)
   by 0x........: main (recursive_mutex.c:?)
mutex 0x........ was first observed at:
   at 0x........: pthread_mutex_trylock (drd_pthread_intercepts.c:?)
   by 0x........: lock_twice (recursive_mutex.c:?)
   by 0x........: main (recursive_mutex.c:?)
Done.
ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 0 from 0)
 
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