[ntp:questions] Can a clock drift be too big for ntpd?

Uwe Klein uwe_klein_habertwedt at t-online.de
Tue Oct 23 18:20:02 UTC 2007

Patrick Nolan wrote:
> On 2007-10-19, Patrick Nolan <pln at glast2.Stanford.EDU> wrote:
>>I realized something since yesterday.  This machine's unique feature is that I
>>compiled a new kernel to add the Reiser file system.  I downloaded the
>>source RPM for the exact version that came with the distro, and the only
>>thing I changed was to enable ReiserFS.
> I got a chance to reboot the machine with the original distro kernel,
> without Reiser FS.  The clock problem goes away.  ntpd syncs up and stays
> synced.
> My next step will be to make a kernel with Reiser but with HZ reduced from
> 1000 to 250.  Stay tuned for further developments.
> This is kernel 2.6.18 running on an Intel Core Duo, 2.4 GHz.

start with the config from the original kernel
(/boot/config* or cat /sys/config.gz >/usr/src/linux/.config

build once and check that you get the same (correct) behaviour.
activate features you want to use preferably as modules.

this gives easier testing without reboot.


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