LTTng memleak finder example usage: LD_PRELOAD=./lttng-memleak-finder.so lttng-sessiond If you get e.g.: [warning] trying to free unallocated ptr 0x18b2a70 caller 0x7fae7943dd57 or [leak] ptr: 0x18b2350 size: 0x160 caller: 0x7fae7943e28f If you need to see local symbols as well, try compiling your code with -Wl,--export-dynamic . Mathieu Desnoyers, May 2013