John Bartas wrote: > Hi Folks, > > I have some questions about when (if ever) NTP will set time backward. > I'll be using it on Embedded Linux for time stamping video frames. > > I've found several mentions in RFC 1305 that this should not happen, and > also in section "Step Phase Adjustments" mention that it can jump > backwards. > > Is there a simple description anywhere if what variables affect this, > and how? I'd like to know when it's going to jump backwards on Linux - > what the rules are and what control I have over it. > > Any help would be appreciated. > > -JB- > ..
I wouldn't get terribly upset about it. Ntpd does not step the time unless it is grossly wrong. Ntpd has been known to step *FORWARD* on certain Windows and MAYBE Linux systems when heavy disk activity resulted in missed clock ticks. I can't think of anything likely to go wrong that would cause a *BACKWARD* step. _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions
