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...@astroj.com> 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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