osmo-bts-trx: "No clock from osmo-trx"

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Neels Hofmeyr nhofmeyr at sysmocom.de
Wed Jun 14 19:58:06 UTC 2017


On Wed, Jun 14, 2017 at 05:41:33PM +0200, Neels Hofmeyr wrote:
> It seems that these failures have become less frequent again, which could
> indeed be related to NTP activity. I'll switch off NTP and see if these go away
> completely.

No, despite NTP being switched off, I still see frequent failures due to
osmo-bts-trx stopping in mid-air.

A recent one was:

20170614170931479 DL1C <0006> scheduler_trx.c:1451 PC clock skew: elapsed uS 328104
20170614170931479 DOML <0001> bts.c:208 Shutting down BTS 0, Reason No clock from osmo-trx

i.e. only a third of a second, much less than the four seconds of last time,
but still.

Any other ideas? Are these necessarily actual clock skews of the host computer?

~N

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