Here is the loadkeys problem using jp106.kmap.gz:
# loadkeys jp106.kmap.gz
loadkyes: jp106.kmap.gz:6: adding map 2 violates explict keymaps line)
I changed the 6th line in /usr/lib/kbd/keymaps/i386/qwerty/jp106.keymap.gz
It seems working.
But I don't know why the error message is suppressed by this change. (^_^;)
Same problem here. Began immediately after upgrade from RedHat 6.1 to 6.2.
I fixed the problem by gunzipping the qwerty-layout.inc.gz and
removing "include euro" and gzipping it back. (I don't really need to make
a "Euro" or "cents" mark from my keyboard.. but if I did, there would be a
*** Bug 11533 has been marked as a duplicate of this bug. ***
This should be fixed in -18.