Program terminated with signal 6, Aborted. we use g++ 4.9.2 on RHEL 6 machine. Please give me any hint/suggestion to debug further. Program terminated with signal 6, Aborted. #0 0x00e58430 in __kernel_vsyscall () #1 0x0050a781 in raise () from /lib/libc.so.6 #2 0x0050c05a in abort () from /lib/libc.so.6 #3 0x00864905 in __gnu_cxx::__verbose_terminate_handler() () from /usr/BWhttpd/lib/CiscoCast_dep/libstdc++.so.6 #4 0x008625f3 in __cxxabiv1::__terminate(void (*)()) () from /usr/BWhttpd/lib/CiscoCast_dep/libstdc++.so.6 #5 0x0086266d in std::terminate() () from /usr/BWhttpd/lib/CiscoCast_dep/libstdc++.so.6 #6 0x008c3d76 in execute_native_thread_routine () from /usr/BWhttpd/lib/CiscoCast_dep/libstdc++.so.6 #7 0x007d8bc9 in start_thread () from /lib/libpthread.so.0 #8 0x005c307e in clone () from /lib/libc.so.6