You can use rr on 64-bit systems. rr requires 32-bit processes at the moment, but does not require 32-bit systems. 32-bit application on 64-bit kernel is a supp

You can use rr on 64-bit systems. rr requires 32-bit processes at the moment, but does not require 32-bit systems. 32-bit application on 64-bit kernel is a supported configuration.