Why valgrind tool massif does not print xtree callstack?

I'm profiling my software using valgrind tool massif with parameters like this:

valgrind.bin --tool=massif --massif-out-file=massif.out.%p --xtree-memory=full --verbose MY_BIN

Unfortuatelly i do not receive any callstack in the results:

ms_print massif.out.1234
(...)
99.87% (20,675,133B) (heap allocation functions) malloc/new/new[], --alloc-fns, etc.
->99.87% (20,675,133B) 0xFFFFFFFF: ???

What sould i do to receive full callstacks from massif?