On Tue, Sep 05, 2006 at 02:47:49AM +0100, Raymond Meyer wrote:
> Hi, I built a release from NetBSd-current, but while booting from CD-ROM I get:
> 
> data fault pc=13bf438 addr=0

That is the kernel dereferencing a NULL pointer.
Did you build the kernel yourself? If so, can you at "makeoptions DEBUG=-gstabs"
to your kernel config file, run configure and build the kernel again?
Then do: gdb netbsd.gdb
and try to find the address above:
list *(0x13bf438)

Martin