Re: [Linuxptp-users] RMS Errors Growing

[<ja...@as...>]

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.  Both versions had the error.

Running ptp4l v4.0

eno1 = I219-LM (rev 11)
eno2 = I225-V (rev 03)

Ran the following command-

sudo ptp4l -i eno2 -s -m
ptp4l[840.573]: selected /dev/ptp0 as PTP clock
ptp4l[840.574]: port 1 (eno2): INITIALIZING to LISTENING on 
INIT_COMPLETE
ptp4l[840.574]: port 0 (/var/run/ptp4l): INITIALIZING to LISTENING on 
INIT_COMPLETE
ptp4l[840.574]: port 0 (/var/run/ptp4lro): INITIALIZING to LISTENING on 
INIT_COMPLETE
ptp4l[841.762]: port 1 (eno2): new foreign master 3484e4.fffe.ab0d0c-1
ptp4l[845.762]: selected best master clock 3484e4.fffe.ab0d0c
ptp4l[845.762]: port 1 (eno2): LISTENING to UNCALIBRATED on RS_SLAVE
ptp4l[847.506]: port 1 (eno2): minimum delay request interval 2^-2
ptp4l[848.100]: port 1 (eno2): UNCALIBRATED to SLAVE on 
MASTER_CLOCK_SELECTED
ptp4l[848.350]: rms 10207961715021 max 14436237901989 freq  -4614 +/- 
3179 delay  6132 +/-   3
ptp4l[849.350]: rms 1239 max 2152 freq  -6046 +/- 713 delay  5965 +/- 
182
ptp4l[850.351]: rms  462 max  725 freq  -4930 +/- 507 delay  5743 +/-  
21
ptp4l[851.351]: rms  497 max  771 freq  -4599 +/- 458 delay  5726 +/-  
27

sudo ptp4l -i eno1 -s -m
ptp4l[1061.649]: selected /dev/ptp1 as PTP clock
ptp4l[1061.649]: port 1 (eno1): INITIALIZING to LISTENING on 
INIT_COMPLETE
ptp4l[1061.649]: port 0 (/var/run/ptp4l): INITIALIZING to LISTENING on 
INIT_COMPLETE
ptp4l[1061.649]: port 0 (/var/run/ptp4lro): INITIALIZING to LISTENING on 
INIT_COMPLETE
ptp4l[1061.771]: port 1 (eno1): new foreign master 3484e4.fffe.ab0d0c-1
ptp4l[1065.772]: selected best master clock 3484e4.fffe.ab0d0c
ptp4l[1065.772]: port 1 (eno1): LISTENING to UNCALIBRATED on RS_SLAVE
ptp4l[1067.039]: port 1 (eno1): minimum delay request interval 2^-2
ptp4l[1067.688]: port 1 (eno1): UNCALIBRATED to SLAVE on 
MASTER_CLOCK_SELECTED
ptp4l[1067.938]: rms 21654216012 max 30707819360 freq +17999999 +/- 
10392304 delay -33216556 +/- 10188517
ptp4l[1068.939]: clockcheck: clock jumped forward or running faster than 
expected!
ptp4l[1068.939]: rms 630332770 max 822762571 freq +23999999 +/-   0 
delay -27609959 +/- 3559790
ptp4l[1068.939]: port 1 (eno1): SLAVE to UNCALIBRATED on 
SYNCHRONIZATION_FAULT
ptp4l[1069.189]: port 1 (eno1): UNCALIBRATED to SLAVE on 
MASTER_CLOCK_SELECTED
ptp4l[1069.939]: clockcheck: clock jumped forward or running faster than 
expected!
ptp4l[1069.939]: rms 1191380561 max 1397186231 freq +23999999 +/-   0 
delay -42764839 +/-   0
ptp4l[1069.939]: port 1 (eno1): SLAVE to UNCALIBRATED on 
SYNCHRONIZATION_FAULT
ptp4l[1070.189]: port 1 (eno1): UNCALIBRATED to SLAVE on 
MASTER_CLOCK_SELECTED
ptp4l[1070.939]: clockcheck: clock jumped forward or running faster than 
expected!
ptp4l[1070.939]: rms 1756603386 max 1968528885 freq +23999999 +/-   0 
delay -41795176 +/- 7986159
ptp4l[1070.939]: port 1 (eno1): SLAVE to UNCALIBRATED on 
SYNCHRONIZATION_FAULT

Thanks,
Jason



On 2023-06-20 00:41, egg car wrote:
> Hi,
> 
> Can you provide more info to reproduce the problem? E.g, your
> configuration, the network connection...
> 
> Regards
> 
> <ja...@as...> 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.
>> When using the I225 interface, ptp works as expected with rms errors
>> reducing to around 500ns.  When using the I219 interface, the reported
>> rms error grows with each sample and never converges.  Ethtool reports
>> the I219 interface supports ptp filter features so I usually use that
>> interface when setting up computers.  Running RHEL 7.9 with the kernel
>> updated to v6.3.8, linuxptp at v4.0.0.  Tried another live linux 
>> distro
>> with the same results.
>> 
>> Any thoughts as to why the errors would continue to grow on the one
>> interface and not the other?
>> 
>> Thanks,
>> 
>> Jason
>> 
>> 
>> _______________________________________________
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