acpidump seg. fault

Apologies if I'm doing something stupid here..

on my CURRENT system as of about a week ago, as well as freshly upgraded 
to about 8 hours ago, when I try to run the command "acpidump -o 
dsdtfile" it seg faults.  The acpicatools port does not display this 
behavior and works as intended.

it seems to be segfaulting because in acpi_checksum in 
/usr/src/usr.sbin/acpi/acpidump/acpi.c the length parameter is -1 and 
its seg faulting out in the "while(length--)" loop.


On a separate system from Feb 2, when I run "acpidump -o myfile" I get:
 > acpidump -o myfile
acpidump: DSDT is corrupt

 >

and again on this system, the acpicatools works fine.

Scott