The object at address 0x........ is not a mutex. at 0x........: pthread_cond_wait (drd_pthread_intercepts.c:?) by 0x........: main (tc23_bogus_condwait.c:69) Process terminating with default action of signal 7 (SIGBUS) Invalid address alignment at address 0x........ at 0x........: (within libpthread-?.?.so) by 0x........: pthread_cond_wait@@GLIBC_2.3.2(within libpthread-?.?.so) by 0x........: pthread_cond_wait (drd_pthread_intercepts.c:?) ERROR SUMMARY: 2 errors from 1 contexts (suppressed: 0 from 0)