Re: [Linuxptp-users] [issue] phc2sys results large jitter with multiple '-c'

2023-06-20 Thread Jacob Keller
On 6/11/2023 11:53 PM, Miroslav Lichvar wrote: > On Mon, Jun 12, 2023 at 12:24:19PM +0800, egg car wrote: >> 5) not only the 4 ports on the same nic, any combination of ptp0~ptp9 results >> the same. >> >> >> Have gone through the phc2sys codes, find nothing reasonable that explains >> this

Re: [Linuxptp-users] RMS Errors Growing

2023-06-20 Thread Miroslav Lichvar
On Tue, Jun 20, 2023 at 09:05:10AM -0600, ja...@astroj.com wrote: > ptp4l[1068.939]: clockcheck: clock jumped forward or running faster than > expected! > ptp4l[1068.939]: rms 630332770 max 822762571 freq +2399 +/- 0 delay > -27609959 +/- 3559790 This shows the frequency being stuck at the

Re: [Linuxptp-users] RMS Errors Growing

2023-06-20 Thread jason
Hello, The configuration is as listed below. Connect a TimeMachines TM2000B (fw 0.6.3) direct to the ethernet port on the motherboard. Also tested with a Netgear GS108 and still had the error. Boot to linux - I tried RHEL 7.9 with kernel 6.3.8 and RHEL 8.8 with kernel 4.18.0-477.13.1.

[Linuxptp-users] Confused about one-step P2P OC versus EEE1588v2 spec

2023-06-20 Thread Janusz Użycki
Hi. In Linux kernel HWTSTAMP_TX_ONESTEP_P2P is introduced as feature superset of HWTSTAMP_TX_ONESTEP_SYNC for peer delay. However only few device drivers and its hardware support full P2P one-step timestamping. It is not clear if one-step SYNC and two-step Pdelay method in P2P can be mixed

Re: [Linuxptp-users] RMS Errors Growing

2023-06-20 Thread egg car
Hi, Can you provide more info to reproduce the problem? E.g, your configuration, the network connection... Regards 于2023年6月20日周二 01:36写道: > > Hi All, > > I'm working on a new computer build based on a Supermicro X13SAE > motherboard and am seeing something unusual on the ptp4l rms output. >