Hi,

Appears I made a little boo-boo with the patch, the file 
/sys/arch/arm32/include/io.h
should have  IO_CONF_BASE defined as 0xf7000000, rather than 0xf6000000.

This can cause potential data-loss, crashes, random lock ups, as the UBC and 
VM system will attempt to use the same VM space, this occurs when , anyone 
who has taken this patch should alter IO_CONF_BASE.  I've generally seen this 
when attempting to do make build as that starts to eat into UBC as /usr/src 
and /usr/obj are on nfs.

I'm about to mail gnats-bug to update the PR to note this fact.  Anyone who's 
taken the patch should fix this define.

Cheers,
Chris