> 	it seems to me that some of recent changes around here
> 	broke APM on IBM notebook machines.  I'm still wondering
> 	which is the genuine source.  see PR10271.  do people
> 	with IBM thinkpad doing fine with the above change?

That PR doesn't seem to point out that this particular change is
to blame.  If a page is going to be used as a page table page, it
better not matter to the stability of the rest of the system if
it is zeroed before being taken into use.

I'm guessing something else is wrong in -current -- yes, my i386
test system reset after probing "isapnp0" and before "npx0" with
yesterday's sources (15:00 GMT); I'm retrying with newer code.

My guess is even that these are probably unrelated to the hangs
or resets folks have experienced related to (?) the PCIBIOS code.

- H=E5vard