port-amd64/40721: Speedstep does not find all available frequencies

[snj%NetBSD.org@localhost]

>Number:         40721
>Category:       port-amd64
>Synopsis:       Speedstep does not find all available frequencies
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-amd64-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Feb 23 00:45:00 +0000 2009
>Originator:     Soren Jacobsen
>Release:        NetBSD 5.0_RC2
>Organization:
        
>Environment:
System: NetBSD unknown.blef.org 5.0_RC2 NetBSD 5.0_RC2 (GENERIC) #0: Sun Feb 22 
14:48:22 PST 2009 
snj%unknown.blef.org@localhost:/usr/src/sys/arch/amd64/compile/GENERIC amd64
Architecture: x86_64
Machine: amd64
>Description:

3GHz Core 2 Duo processor running at 900mhz == :'(

NetBSD 5.0_RC2 (GENERIC) #0: Sun Feb 22 14:48:22 PST 2009
        snj%unknown.blef.org@localhost:/usr/src/sys/arch/amd64/compile/GENERIC
total memory = 4060 MB
avail memory = 3920 MB
timecounter: Timecounters tick every 10.000 msec
timecounter: Timecounter "i8254" frequency 1193182 Hz quality 100
SMBIOS rev. 2.4 @ 0xf0100 (38 entries)
Gigabyte Technology Co., Ltd. EG45M-DS2H ( )
mainbus0 (root)
cpu0 at mainbus0 apid 0: Intel 686-class, 2999MHz, id 0x1067a
cpu0: Enhanced SpeedStep (1244 mV) 900 MHz
cpu0: Enhanced SpeedStep frequencies available (MHz): 900 800 700 600
cpu1 at mainbus0 apid 1: Intel 686-class, 2999MHz, id 0x1067a

>How-To-Repeat:

Have my hardware and boot a kernel with ENHANCED_SPEEDSTEP enabled.

>Fix:

Comment out ENHANCED_SPEEDSTEP, then hope someone comes up with a
proper fix.