[time-nuts] PTPv2 grandmaster with a Z3805A?

[David Gravereaux]

Thanks guys.  This is getting interesting.

$ dmesg|grep clock
[    0.255576] hpet clockevent registered
[    0.258069] Switching to clocksource hpet
[    1.155479] rtc_cmos 00:03: setting system clock to 2013-08-17
20:38:33 UTC (1376771913)
[    1.382147] PTP clock support registered
[    7.640035] intel8x0_measure_ac97_clock: measured 54638 usecs (2680
samples)
[    7.640040] intel8x0: clocking to 46972

$ dmesg|grep tsc
[    0.000000] tsc: Fast TSC calibration using PIT
[    0.000000] tsc: Detected 2412.241 MHz processor
[    0.000000] tsc: Marking TSC unstable due to TSCs unsynchronized


I guess I can't go with TSC on this hardware.

Generally, for now, what I'm asking is...  If NTPd is managing the radio
and slewing with the PPS, the PTP daemon (ptp4l) will be taking time
from the same system source?  Granted, PTP time is not the same as Unix
time, and maybe I'm not understanding the use of the phc2sys utility?

Probably a better question for the linuxptp group.

-- 
David Gravereaux <davygrvy at pobox.com>

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