Compiling 6.3->7: lapic frequency madness

John Baldwin jhb at
Tue Mar 18 08:41:16 PDT 2008

On Saturday 15 March 2008 10:21:23 pm Igor Mozolevsky wrote:
> Ok,
> so I've been trying to figure out (on my T43p) why my lapic frequency
> is being ~3x the difference between Release-7 CD and RELENG_7 cvs... I
> get, after verbose booting:
> lapic: Divisor 2, Frequency 66504853 hz
> with the ISO image; and
> lapic: Divisor 2, Frequency 188430051 hz
> consistently +/- small % variation...
> I'm compiling w/ GENERIC w/o CFLAGS/COPTFLAGS, etc... The response is
> sluggish as a result of that, and perl fails timing tests... I've run
> out of things to experiment with; has anything changed in the kernel
> wrt lapic? If not, HELP!

First, which one is broken?  Have you tried a RELENG_7_0 kernel and does it do 
the same as a release CD kernel?

John Baldwin

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