Re: kern/41733: Xeon 3520: CPU MHz wrong -> timecounter wrong

[Thomas Klausner <wiz%NetBSD.org@localhost>]

The following reply was made to PR kern/41733; it has been noted by GNATS.

From: Thomas Klausner <wiz%NetBSD.org@localhost>
To: matthew green <mrg%eterna.com.au@localhost>
Cc: gnats-bugs%NetBSD.org@localhost
Subject: Re: kern/41733: Xeon 3520: CPU MHz wrong -> timecounter wrong
Date: Sat, 18 Jul 2009 09:18:59 +0200

 On Sat, Jul 18, 2009 at 12:27:50PM +1000, matthew green wrote:
 > FWIW, my Q9450 sometimes reports the wrong speed too, though it
 > does not seem to affect time.
 > 
 > cpu0 at mainbus0 apid 0: Intel 686-class, 42028MHz, id 0x10677
 > 
 > vs:
 > 
 > cpu0: "Intel(R) Core(TM)2 Quad  CPU   Q9450  @ 2.66GHz"
 > 
 > i have kern.timecounter.hardware = hpet0.
 
 Mine was set to "TSC" -- when I switch to hpet0, the time lost in 5
 minutes decreases from 50s to 0.004s. Thanks for the hint!
 
 So is it a bug with TSC or is it just caused by the wrong MHz
 recognition?
  Thomas