acpi trouble

[Patrick Welche <prlw1%cam.ac.uk@localhost>]

On a NetBSD-current/i386 celeron M (ie just 1 cpu) laptop:
1) boot hangs at acpiacad0: AC adapter online
2) boot -2 is all OK
3) boot -c, disable acpibut* boots, but:
   - laptop keyboard doesn't work
   - lots of hard disk timeouts
   - external keyboard as a ridiculously high repeat rate
   - logging in via ssh has to be rapid to beat the login timeout
4) boot -c, disable attimer* at acpi?
   - same as 3)
5) boot -c, disable ehci*
   - same as 1)
6) boot -c, disable ehci* and xhci*    i.e., leave all of acpi intact
   - same as 3)
   - dmesg contains
       ACPI Exception: AE_ERROR, Returned by Handler for
           [EmbeddedControl] (20110623/evregion-522)
       ACPI Error: Method parse/execution failed [\_SB_.PCI0.LPCB.ACAD._PSR]
           (Node 0xc1bc30cc), AE_ERROR (20110623/psparse-560)
7) boot -c, disable pckbc* at acpi?
   - same as 3)

acpidump output available...

The kernel is -current, but the userland is 6.1.2 at the moment, so
vmstat won't be happy (yet)

Thoughts?

Cheers,

Patrick