Hiya,

On 30/01/2017 19:56, Mark Atwood wrote:
Hello Hugh,

No need to be off list, we like to work in public as much as possible.

Cool cool, works for me :)

Yes, please make those connections, and prod your friends on this issue.

No worries - by copy Hal - I apologise if I missed it but could you please remind me which version of Mac Mini this is ? I think there was only the one CPU in the G4 based Minis - 7447A but other system components may have changed.

Please also confirm which Linux kernel version you're running (and FreeBSD for that matter though I lack any foo with that crowd :)

Any other info you think relevant would be grand - I'm still finding my way with ntpsec - Mark gave a particularly inspiring lightning talk at linux.conf.au earlier this month which prompted me to get involved so I'm very much a newbie :)

I've had a quick look at the ntp_loopfilter.c code and can see where the clock_step is occuring. What I lack context on though is does it appear that on the Minis' the hardware clock/timebase is actually drifting too much (perhaps suggesting an issue with the underlying timebase init code) or is the kernel not allowing sufficiently large steps by calls to ntp_adjtime()

Or am I totally on the wrong track ?

In any case happy to gather the relevant data and summarise it into an email, CC the list to the kernel folk I know.

Cheers,
Hugh






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