The message starting with REQUIRED more or less says that rgbdslam crashed. The message in your comment hints towards a missing library. Apparently you need to build the siftgpu library, which should have been done by rosmake. To do it manually, run make in rgbdslam/external/siftgpu/linux and copy the created external/siftgpu/linux/bin/libsiftgpu.so to a directory searched by the linker (try rgbdslam/lib or check the linker command line with make VERBOSE=1 for -L/some/dir parameters).