Ruby on Cygwin error (*** unable to remap)

I had an annoying issue occuring when running Ruby under Cygwin. The error was reproducable every time that I attempted to run the ri command.

C:\cygwin\lib\ruby\1.8\i386-cygwin\readline.so to same address as parent(0x370000) != 0x2760000
C:\cygwin\bin\ruby.exe (3132): *** unable to remap C:\cygwin\lib\ruby\1.8\i386-cygwin\readline.so to same address as parent(0x370000) != 0x2760000

I was finally able to resolve the issue with the following steps:

1. exit from cygwin


2. enter the dos command prompt


3. cd to you cygwin bin directory (c:\cygwin\bin)


4. run ash rebaseall


5. restart cygwin ... problem solved