Re: 2.6.19-rc2 and very unstable NTP

[Roman Zippel]

Hi,

On Fri, 27 Oct 2006, linux@xxxxxxxxxxx wrote:

> And given that, in the course of my experiments, I managed to reproduce
> the problem with 2.6.17+linuxpps and 2.6.19-rc3 with the ntp.c patch,
> but managed to make it go away with 2.6.19-rc3+linuxpps with the pps
> source marked "noselect" (which results in identical kernel activity,
> but doesn't actually use the returned timestamp for anything), I'm
> looking pretty hard at ntpd right now.

To analyze the kernel behaviour I would at least need the information fed 
to the kernel, e.g. by tracing the ntp daemon via "TZ=utc strace -f -tt 
-e trace=adjtimex -o ntpd.trace ..." and the ntp peer logs of same time 
period. Kernel boot messages and config might help as well.

bye, Roman
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