massive time drift. NTP help required

Henry Ritzlmayr fedora-list at rc0.at
Fri Jun 1 13:47:58 UTC 2007


Am Freitag, den 01.06.2007, 06:45 -0600 schrieb Mark Hutchinson:
> I am also seeing some of this in my messages.  Is this what you had?
> What does it mean?
> warning: many lost ticks.
> warning: many lost ticks.

Yes that is exactly what I meant. As I said check your BIOS Settings for
AMT. 

What it means (easy description) is, that something is hogging your
interrupts. 

What you also could do (if doable) stop your networking (unplug the
cable). The time drift should instantly stop.

Henry

PS: please don´t top post

> 
> On 6/1/07, Henry Ritzlmayr <fedora-list at rc0.at> wrote:
>         Am Freitag, den 01.06.2007, 06:26 -0600 schrieb Mark
>         Hutchinson:
>         
>         <snip>
>         
>         >
>         > Anyone have any thoughts on what could be up with this?
>         > Other things I can try.  I am not sure why my clock is off
>         this much. 
>         > All brand new hardware as well.
>         
>         I had the same problem with an ASUS "P5B-VM DO". Time drift
>         was exactly
>         1 second per minute or as you describe it 1 minute per hour.
>         
>         I also got lost ticks warnings in /var/log/messages. 
>         
>         I got rid of the time drift problem by enabling AMT within the
>         BIOS and
>         disabling the LAN Controller! Obviously even AMT is disabled
>         (by
>         default) there is still something hogging the interrupts which
>         caused
>         the time drift on my system. After disabling the LAN
>         Controller, AMT can
>         be disabled for good now.
>         
>         I had the problem with any FC6 kernel. FC7 kernels where not
>         affected.
>         
>         Henry
>         
>         
>         
>         
>         
>         >
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