SUMMARY
Valgrind version 3.11.0
Red Hat 4.4.7-16
Linux version 2.6.32-573.el6.x86_64

OBSERVED RESULT
==467== Use of uninitialised value of size 8
==467== at 0x300B000: ??? (in /lib64/libsystemc-2.3.1.so)
==467== by 0x3000B02: sc_core::wait(…) (in /lib64/libsystemc-2.3.1.so)
==467== by 0x3000C04: sc_core::sc_module::wait(…) (sc_module.h)
==467== by 0x40B0B9A: SAZZ::EndThread() (SAZZ.cpp:813)
==467== by 0x40EB0B1: sc_core::sc_thread_cor_fn (in /lib64/libsystemc-2.3.1.so)
==467== by 0x4139044: ??? (in /lib64/libsystemc-2.3.1.so)
==467== Uninitialized value was created by a stack allocation
==467== at 0x300B000: ??? (in /lib64/libsystemc-2.3.1.so)

==467== Use of uninitialised value of size 8
==467== at 0x700B000: sc_core::sc_sc_event_expr<sc_core::sc_event_or_list>::~sc_event_expr() (in /mywork/execute.x)
==467== by 0x40BC9A: SAZZ::EndThread() (SAZZ.cpp:813)
==467== by 0x413D0D8: sc_core::sc_thread_cor_fn(void*) (in /lib64/libsystemc-2.3.1.so)
==467== by 0x4130300: ??? (in /lib64/libsystemc-2.3.1.so)
==467== by 0x4136094: ??? (in /lib64/libsystemc-2.3.1.so)
==467== Uninitialized value was created by a stack allocation
==467== at 0x300B000: ??? (in /lib64/libsystemc-2.3.1.so)

==467== Invalid read size 8
==467== at 0x600B000: sc_cor_qt_yieldhelp (in /lib64/libsystemc-2.3.1.so)
==467== at 0x600BC00: ??? (in /lib64/libsystemc-2.3.1.so)
==467== by 0x6000B02: sc_core::wait(…) (in /lib64/libsystemc-2.3.1.so)
==467== by 0x6000C04: sc_core::sc_module::wait(…) (sc_module.h)
==467== by 0x60BC9A: SAZZ::EndThread() (SAZZ.cpp:813)
==467== by 0x613D0D8: sc_core::sc_thread_cor_fn(void*) (in /lib64/libsystemc-2.3.1.so)
==467== by 0x6130300: ??? (in /lib64/libsystemc-2.3.1.so)
==467== by 0x6136094: ??? (in /lib64/libsystemc-2.3.1.so)
==467== Address 0xE14be48 is 598 bytes inside a block of size 624 alloc'd
==467== at 0x400BD00: operator new[](unsigned long) (vg_replace_malloc.c:422)
==467== by 0x600BA00: sc_core::sc_core_pkg_qt::create(unsigned long, void (*), void*)(in /lib64/libsystemc-2.3.1.so)

***************
void SAZZ::EndThread(){
     while(1){
     ...

     wait( period, time_resolution, next_event[index] | change_event[index]);//line 813
     }
}
***************
Reproducible: Couldn't Reproduce

Steps to Reproduce:
not sure how to reproduce it,