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SubjectRe: system clock speed too high?
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Hi!

Andreas Haumer wrote:
[...]
> *) Hyperthreading "disabled"
> *) MPS 1.4 Support "disabled"
> *) BIOS Update "disabled"
> *) Plug & Play "yes" (this makes it even worse: linux crashes
> eventually as it gets confused by IRQ setting)
>

I've found it:

It's BIOS setting "USB legacy support", which I had on
"Auto" (default setting).

As soon as I disable "USB legacy support", system time
is now in sync with wall clock time!

root@setup:~ {508} $ ntpdate ntp.xss.co.at; sleep 60; ntpdate ntp.xss.co.at
3 Jun 14:35:32 ntpdate[1141]: adjust time server 194.152.162.17 offset 0.005909 sec
3 Jun 14:36:32 ntpdate[1146]: adjust time server 194.152.162.17 offset -0.002158 sec

Uaaahhhhhhhh!!!!!

Linux also now reports an interesting error on bootup, which
isn't there when booting with "USB legacy support=Auto"

[...]
..MP-BIOS bug: 8254 timer not connected to IO-APIC
[...]

(This is 2.4.21-rc6-ac1 booting with "acpi=off")

What the hell does USB legacy support have to do with all this???
This is weird!

- - andreas

- --
Andreas Haumer | mailto:andreas@xss.co.at
*x Software + Systeme | http://www.xss.co.at/
Karmarschgasse 51/2/20 | Tel: +43-1-6060114-0
A-1100 Vienna, Austria | Fax: +43-1-6060114-71
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