Time jumping on both 4.x and 5.x ...

Kris Kennaway kris at obsecurity.org
Sat Nov 29 00:19:08 PST 2003


On Sat, Nov 29, 2003 at 07:04:16AM +0100, Michael Nottebrock wrote:
Content-Description: signed data
> On Saturday 29 November 2003 05:57, Dag-Erling Sm?rgrav wrote:
> > "Marc G. Fournier" <scrappy at hub.org> writes:
> > > as to ntpd/timed ... don't run either ... run ntpdate twice a day (11:59
> > > and 23:59)
> >
> > Don't Do That.  It will lead to all kinds of trouble that will take
> > you ages to figure out.  Really, ntpd is so ridiculously easy to set
> > up (especially if you already have ntpdate working) that there is no
> > reason not to use it.
> 
> FWIW, it can reproduce this on two machines (one 4.9-RELEASE, one 5.1-RELEASE) 
> which both run ntpd. Takes some 10 minutes on both before the first steps 
> backwards turn up.
> 
> Unfortunately, both machines aren't very good datapoints because both have 
> pretty customized kernels and have -Os and -march optimized worlds/kernels...
> 
> Both have kern.timecounter.hardware: ACPI-fast, too.

Are all affected machines multi-processor?

Kris
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 187 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/freebsd-current/attachments/20031129/477337b6/attachment.bin


More information about the freebsd-current mailing list