Re: [Linuxptp-devel] linuxptp on ubuntu 14.04

[Andrei P. <and...@kl...>]

I tried the easy option *run ptp4l with the '-2' (L2 transport) flag* but
that changed nothing... so I tried something different: I changed
tx_timestamp_timeout  from 1000 to 100 and now I get some output on the
slave node.
The output of the master node:

ptp4l[622024.340]: selected /dev/ptp1 as PTP clock
ptp4l[622024.340]: port 1: INITIALIZING to LISTENING on INITIALIZE
ptp4l[622024.340]: port 0: INITIALIZING to LISTENING on INITIALIZE
ptp4l[622026.448]: port 1: new foreign master 00e04b.fffe.3b5762-1
ptp4l[622030.527]: selected best master clock 00e04b.fffe.3b5762
ptp4l[622030.527]: assuming the grand master role
ptp4l[622030.527]: port 1: LISTENING to GRAND_MASTER on RS_GRAND_MASTER

and that's it..stops at that

The output of the slave node:

ptp4l[459942.424]: selected /dev/ptp0 as PTP clock
ptp4l[459942.425]: port 1: INITIALIZING to LISTENING on INITIALIZE
ptp4l[459942.425]: port 0: INITIALIZING to LISTENING on INITIALIZE
ptp4l[459949.497]: port 1: LISTENING to MASTER on
ANNOUNCE_RECEIPT_TIMEOUT_EXPIRES
ptp4l[459949.497]: selected best master clock 00e04b.fffe.3b5762
ptp4l[459949.497]: assuming the grand master role
ptp4l[459953.600]: port 1: new foreign master 002590.fffe.f2c1e4-1
ptp4l[459957.700]: selected best master clock 002590.fffe.f2c1e4
ptp4l[459957.700]: port 1: MASTER to UNCALIBRATED on RS_SLAVE
ptp4l[459959.700]: master offset 70392990950326 s0 freq  +42196 path
delay     11935
ptp4l[459960.700]: master offset 70392990967298 s1 freq  +59166 path
delay     11388
ptp4l[459961.700]: master offset     -38681 s2 freq  +20485 path delay
11388
ptp4l[459961.700]: port 1: UNCALIBRATED to SLAVE on MASTER_CLOCK_SELECTED
ptp4l[459962.700]: master offset     -46656 s2 freq    +905 path delay
11388
ptp4l[459963.700]: master offset     -33290 s2 freq    +275 path delay
11627
ptp4l[459964.700]: master offset     -16728 s2 freq   +6850 path delay
11234
ptp4l[459965.700]: master offset      -6979 s2 freq  +11580 path delay
11781
ptp4l[459966.700]: master offset      -2157 s2 freq  +14308 path delay
12304
ptp4l[459967.775]: master offset       -297 s2 freq  +15521 path delay
12947
ptp4l[459968.700]: master offset        -27 s2 freq  +15702 path delay
13803
ptp4l[459969.700]: master offset        -16 s2 freq  +15705 path delay
14554
ptp4l[459970.701]: master offset       -359 s2 freq  +15357 path delay
15659
ptp4l[459971.701]: master offset        706 s2 freq  +16315 path delay
15659
ptp4l[459972.701]: master offset        622 s2 freq  +16442 path delay
16007
ptp4l[459973.701]: master offset        614 s2 freq  +16621 path delay
16076
ptp4l[459974.701]: master offset        390 s2 freq  +16581 path delay
16186
ptp4l[459975.787]: master offset        281 s2 freq  +16589 path delay
16186
ptp4l[459976.701]: master offset        145 s2 freq  +16538 path delay
16238


now, when this happened, I noticed my system clock went rogue - for some
reason it thinks it's July 11th 12:00 am (it's configured toget time
automatically from the internet)

So, two questions come to mind:
1. is ptp working correcly now? O sould I see some messages on the master's
console as well
2. why did my system clock decide to change tu such an awkward  value?


Also I tried running *sudo phc2sys -s eth1 -w -q* but this does not seem to
work; it's like phc2sys is waiting for ptp4l, even though ptp4l is already
running. any ideas on this one?

Thanks,
Andrei





On Wed, Jun 18, 2014 at 3:33 PM, Richard Cochran <ric...@gm...>
wrote:

> On Wed, Jun 18, 2014 at 01:13:27PM +0100, Andrei Perietanu wrote:
> > I tried running wireshark on both nodes and I see the exact same
> wireshark
> > output on both of them, so sync messages are being received by the slave.
>
> Okay, then something very strange is happening, and I can't imagine
> what is going on. The one difference between wireshark and ptp4l is
> that wireshark uses promiscuous mode, while ptp4l joins the multicast
> group.
>
> Here are two things to try.
>
> 1. Easy: run ptp4l with the '-2' (L2 transport) flag
> 2. Harder: try a vanilla kernel
>
> Sorry,
> Richard
>

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