David Cureton wrote: > Hi, > I am syncing a Linux 2.6.26 kernel to a Serial DCD PPS GPS source. > The kernel time has been running for quite some time with a ~160ppm > frequency error however inexplicably the ppm error over night simply > jumped to ~105ppm. The system has for the last couple of day tracked > in > a stable manner at that ~105ppm rather than the ~160ppm offset it used > to be. [] > I am at a loss to explain why this jump occurred and whether to expect > it to occur in the future. Does anyone have any ideas to the cause of > this jump in PPM error. System is on a UPS so unlikely to be a power > supply issue. I am stumped? > > Thanks, > David
Crystals can sometimes jump in frequency, although I'm surprised to see a modern unit do so, and that is quite a large step. How old is the system? David _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions
