Hi,
I have a setup with one master node (# ptp4l -i eno1 -m -q -4 -H -E) where the
NIC is the i218-LM (rev 05) with the 3.2.6-k version of the e1000e driver
installed.
The server I am trying to synchronise to this master (# ptp4l -i eno1 -m -q -4
-H) is using the i217-LM (rev 04) with the 3.4.0.2 version of the e1000e driver
installed.
When synchronising the slave server to the master after boot, the
synchronisation process is flawless as seen in the output below. However, when
adding another server to the setup, which should take over the master function,
there appears a very high offset including a very high frequency adjustment
value.
When disconnecting the last connected device and letting the previous master
take over the master role again, the slave server will not synchronise anymore;
not even after killing the linuxptp processes and starting the synchronisation
all over again: the master offset keeps high but decreases within 20 minutes to
normal values, but the frequency adjustment value stays to the maximum of
-59999999..
I have no idea what I am doing wrong and why the servers won’t synchronise
anymore after adding a node to the network.. Please see the bold lines and my
comments in the output below.
ptp4l[66029.262]: master offset 481 s2 freq +15759 path delay 17131
ptp4l[66030.262]: master offset -696 s2 freq +14727 path delay 17131
ptp4l[66031.262]: master offset 276 s2 freq +15490 path delay 17191
ptp4l[66032.262]: master offset -830 s2 freq +14467 path delay 17366
ptp4l[66033.262]: master offset 368 s2 freq +15416 path delay 17406
ptp4l[66034.262]: master offset -267 s2 freq +14891 path delay 17406
ptp4l[66035.262]: master offset 854 s2 freq +15932 path delay 17366
ptp4l[66036.262]: master offset -1553 s2 freq +13781 path delay 17366
ptp4l[66037.262]: master offset 1625 s2 freq +16493 path delay 17253
ptp4l[66038.262]: master offset 422 s2 freq +15778 path delay 17253
ptp4l[66039.262]: master offset -996 s2 freq +14486 path delay 17253
ptp4l[66040.262]: master offset -157 s2 freq +15026 path delay 17253
ptp4l[66041.262]: master offset 234 s2 freq +15370 path delay 17088
ptp4l[66042.262]: master offset 678 s2 freq +15885 path delay 17088
ptp4l[66043.263]: master offset 6 s2 freq +15416 path delay 17088
ptp4l[66044.263]: master offset -829 s2 freq +14583 path delay 17088
ptp4l[66045.263]: master offset 674 s2 freq +15837 path delay 17088
ptp4l[66046.263]: master offset -879 s2 freq +14486 path delay 17088
ptp4l[66047.263]: master offset 599 s2 freq +15701 path delay 17088
ptp4l[66048.263]: master offset -1058 s2 freq +14223 path delay 17504
ptp4l[66049.263]: master offset -109 s2 freq +14855 path delay 17504
ptp4l[66050.263]: master offset 1000 s2 freq +15931 path delay 17452
ptp4l[66050.354]: port 1: new foreign master 008082.fffe.4a6352-1 # Booting the
third server which should take over the master role since having a high
resolution oscillator
ptp4l[66051.263]: master offset -420 s2 freq +14811 path delay 17504
ptp4l[66052.263]: master offset -41 s2 freq +15064 path delay 17502
ptp4l[66053.263]: master offset 985 s2 freq +16078 path delay 17502
ptp4l[66054.263]: master offset -718 s2 freq +14670 path delay 17502
ptp4l[66054.354]: selected best master clock 008082.fffe.4a6352 # Slave server
selects the third server as master
ptp4l[66054.354]: port 1: SLAVE to UNCALIBRATED on RS_SLAVE
ptp4l[66056.354]: master offset -168526361861880 s2 freq -599999999 path delay
369445615 # Very high offset values appear..
ptp4l[66056.354]: port 1: UNCALIBRATED to SLAVE on MASTER_CLOCK_SELECTED
ptp4l[66057.400]: master offset -168528510335429 s2 freq -599999999 path delay
369445615
ptp4l[66058.500]: master offset -168530814213303 s2 freq -599999999 path delay
525400973
ptp4l[66059.600]: master offset -168532962651498 s2 freq -599999999 path delay
525400973
ptp4l[66060.700]: master offset -168534954570183 s2 freq -599999999 path delay
369445615
ptp4l[66061.800]: master offset -168537093404387 s2 freq -599999999 path delay
359905005
ptp4l[66062.900]: master offset -168539241338106 s2 freq -599999999 path delay
359905005
ptp4l[66064.001]: master offset -168541389737288 s2 freq -599999999 path delay
359905005
ptp4l[66065.101]: master offset -168543547669020 s2 freq -599999999 path delay
369445615
ptp4l[66066.201]: master offset -168545696034899 s2 freq -599999999 path delay
369445615
ptp4l[66067.302]: master offset -168547889511957 s2 freq -599999999 path delay
414691158
ptp4l[66068.402]: master offset -168550107695214 s2 freq -599999999 path delay
484559451
ptp4l[66069.502]: master offset -168552255953174 s2 freq -599999999 path delay
484559451
ptp4l[66070.602]: master offset -168554421490234 s2 freq -599999999 path delay
501698092
ptp4l[66071.702]: master offset -168556661950227 s2 freq -599999999 path delay
594211702
ptp4l[66072.803]: master offset -168558810410860 s2 freq -599999999 path delay
594211702
ptp4l[66073.903]: master offset -168560958654971 s2 freq -599999999 path delay
594211702
ptp4l[66075.003]: master offset -168563107128927 s2 freq -599999999 path delay
594211702
ptp4l[66076.103]: master offset -168565162899459 s2 freq -599999999 path delay
501698092
ptp4l[66077.204]: master offset -168567255995434 s2 freq -599999999 path delay
446611515
ptp4l[66078.304]: master offset -168569368403777 s2 freq -599999999 path delay
410854233
ptp4l[66079.404]: master offset -168571516791420 s2 freq -599999999 path delay
410854233
ptp4l[66080.504]: master offset -168573672527108 s2 freq -599999999 path delay
418366810
ptp4l[66081.605]: master offset -168575843598570 s2 freq -599999999 path delay
441063407
ptp4l[66082.705]: master offset -168577991850215 s2 freq -599999999 path delay
441063407
ptp4l[66083.805]: master offset -168580140312686 s2 freq -599999999 path delay
441063407
ptp4l[66084.905]: master offset -168582288581046 s2 freq -599999999 path delay
441063407
ptp4l[66086.006]: master offset -168584432678175 s2 freq -599999999 path delay
436730798
ptp4l[66087.106]: master offset -168586514212053 s2 freq -599999999 path delay
370048406
ptp4l[66088.206]: master offset -168588685269074 s2 freq -599999999 path delay
392745003
ptp4l[66089.306]: master offset -168590833511939 s2 freq -599999999 path delay
392745003
ptp4l[66090.407]: master offset -168592983366418 s2 freq -599999999 path delay
394188319
ptp4l[66091.507]: master offset -168594985107545 s2 freq -599999999 path delay
247691332
ptp4l[66092.607]: master offset -168597133496113 s2 freq -599999999 path delay
247691332
ptp4l[66093.707]: master offset -168599453088149 s2 freq -599999999 path delay
418967759
ptp4l[66094.808]: master offset -168601829279819 s2 freq -599999999 path delay
646779764
ptp4l[66095.908]: master offset -168603977644184 s2 freq -599999999 path delay
646779764
ptp4l[66103.043]: port 1: SLAVE to LISTENING on
ANNOUNCE_RECEIPT_TIMEOUT_EXPIRES # Disconnecting the third machine (master)
ptp4l[66103.043]: selected best master clock ecb1d7.fffe.55ac7c # Slave machine
selecting itself as master
ptp4l[66104.238]: clockcheck: clock jumped backward or running slower than
expected!
ptp4l[66105.138]: clockcheck: clock jumped backward or running slower than
expected!
ptp4l[66105.139]: selected best master clock 3c5282.fffe.5abe30 # Slave machine
selecting the first master node as master again which it did synchronise to
perfectly in the beginning
ptp4l[66105.139]: port 1: LISTENING to UNCALIBRATED on RS_SLAVE
ptp4l[66106.038]: clockcheck: clock jumped backward or running slower than
expected!
ptp4l[66106.939]: clockcheck: clock jumped backward or running slower than
expected!
ptp4l[66106.939]: master offset -168587298255516 s0 freq -599999999 path delay
272055424 # Slave machine does not synchronise to its previous master anymore…
ptp4l[66107.839]: clockcheck: clock jumped backward or running slower than
expected!
ptp4l[66107.839]: master offset -168587898293349 s0 freq -599999999 path delay
272055424
ptp4l[66108.739]: master offset -168588501235260 s0 freq -599999999 path delay
274969750
ptp4l[66108.739]: clockcheck: clock jumped backward or running slower than
expected!
ptp4l[66109.639]: master offset -168589098346502 s0 freq -599999999 path delay
272055424
ptp4l[66109.639]: clockcheck: clock jumped backward or running slower than
expected!
ptp4l[66110.539]: clockcheck: clock jumped backward or running slower than
expected!
ptp4l[66110.539]: master offset -168589659167610 s0 freq -599999999 path delay
232840163
ptp4l[66111.439]: master offset -168590259198387 s0 freq -599999999 path delay
232840163
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