Missing fileinformation with memprof

I’m triying to find a memory leak with memprof. I’m using in


after uploading to memprof.com I can see following:

* objects with most outbound references

2318 classes and 384 modules

* namespace hierarchy
* class hierarchy
* instances per class
* duplicate classes by name

497 source files

* 6547 objects created inside eval
* 22571 objects missing file information <--------------

299912 nodes

* nodes by type
* nodes per file

I have alot of missing file informatin about objects… It seems that I
have no information about my own written rails-files… I can see only
infos about the lib-files.
Have I something to do to give the file-infos to memprof?