[ntp:questions] Re: NTP with linux kernel 2.6.9 vs. kernel 2.4.24

Ulrich Windl Ulrich.Windl at RZ.Uni-Regensburg.DE
Fri Jan 21 10:35:38 UTC 2005

Goetz Lichtwald <lichtwald at tm.uka.de> writes:

> Hi,
> I got through this mailing list and asked google for several
> times and still, I found no answer or hint where to look at. 
> So, the basic problem is that I have a couple of linux boxes
> that need to be synchronized via NTP. Those boxes have all the
> very same hardware and configuration. 
> Running the kernel 2.4.24 NTP works fine. For various reasons 
> there is the need to run -- at least a few of them -- with 
> kernel 2.6.9 and here it happens. NTP complains. The Log states:
> ntpd[22804]: frequency error -512 PPM exceeds tolerance 500 PPM

I hope you did both tests on the same hardware...

> Using "adjtimex" does not alleviate the problem at all.  The 
> kernel 2.6.9 was configured via "make oldconfig" from kernel 
> 2.4.24.
> Does anybody has a hint where to look at or even a solution to
> the problem. For better debugging, some further facts about the
> environment:
> ntp 4.2.0a-11 
> os  Debian Sarge with kernel 2.6.9 resp. 2.4.24

I can really reccommend the 2.4 Kernels with PPSkit.


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