On 25th Oct, Todd Whitesel wrote:
>       root file system type: ffs
>       panic: Prefetch abort in non-USR mode (frame=0xf35a8d44)
> 
>       Stopped in init at      _Debugger+0x10: ldmdb   r11, {r11, r13, r15}
>       db>
> 
> if I type "trace" I get
> 
>       db>trace
>       _Debugger(_Debugger+0x10)
>       _panic(_panic+0x14)
>       _prefetch_abort_handler(_prefetch_abort_handler+0x10)
>       _cnopen(_cnopen+0x10)
>       _spec_open(_spec_open+0x10)
>       _vn_open(_vn_open+0x10)
>       _sys_open(_sys_open+0x10)
>       _syscall(_syscall+0x10)
>       db>

I get a very similar output with a fresh -current (and Richard
Earnshaws wdc patch). The wdc patch made the machine recognise the
discs, but then I got a panic. However, I've got _resethandler instead
of _prefetch_abort_handler in the above list.

Also, I've got:

panic: Branch to never-never land (zero)..... were (sic) dead
prior to the above.

-- 
Dr. Stephen Borrill