sry, now i noticed it only happens when different files with the same name opened in each frame... , here's what i did:

emacs -Q

opening file a/util.c and a/util.h side by side, save window configuration in register (C-x r f a)

then file b/util.c and b/util.h, (C-x r f b)

when i want to restore register 'a' (C-x r j a) emacs opens random buffers instead, but register 'b' works.

i tried last commit of branch 'emacs-24' today and it still happens, but emacs-24.3 works fine.

On Mon, May 26, 2014 at 5:18 PM, Juanma Barranquero <lekktu@gmail.com> wrote:

> when i want to go back to 'a' (C-x r j a) emacs can't remember the frame and
> open random buffer instead. (no error)

Could you please give a step-by-step recipe starting from emacs -Q and
describing the buffers that you do see at each step?

TIA,

Juanma