Re: [Linuxptp-users] Timemaster

[9848.472]: selected best master clock 3c5282.fffe.5abe30 I think that means ptp4l is not receiving or is ignoring the PTP messages. Maybe it's a different PTP domain? Running ptp4l in strace and/or with -l 7 might give us more clues. -- Miroslav Lichvar -

Re: [Linuxptp-users] Timemaster

"ptp4l -H -i eno1 -s" ? Do you see any ptp-event and ptp-general messages in tcpdump output? It might be a firewall issue. -- Miroslav Lichvar -- Check out the vibrant tech community on one of the world's most en

Re: [Linuxptp-users] ptp4l and SHM?

On Mon, Oct 30, 2017 at 08:07:49PM -0700, Gary E. Miller wrote: > Miroslav Lichvar <mlich...@redhat.com> wrote: > > Is there a "LISTENING to UNCALIBRATED on RS_SLAVE" message in the log? > > If not, ptp4l is probably not receiving master's messages, e.g. due to >

Re: [Linuxptp-users] ✘Bug. int -> unsigned

pcoming rollover issue. Hm, which rollover issue? The fields are not supposed to have values outside interval [0, 9]. ptp4l and phc2sys follow that, so it does not matter if the fields are declared as signed or unsi

Re: [Linuxptp-users] reboot when using -E linreg on phc2sys results in 2 second offset.

/rtnl.c > +++ b/rtnl.c > @@ -17,6 +17,7 @@ > * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. > */ > #include > +#include > #include > #include > #include It would be nice to fix this too. Thanks, -- Miroslav Lichvar --

Re: [Linuxptp-users] reboot when using -E linreg on phc2sys results in 2 second offset.

ogs it seems the problem is that clock_adjtime() returns zero ticks instead of 1 for the REALTIME clock. I suspect it's a kernel or possibly glibc bug. -- Miroslav Lichvar -- Check out the vibrant tech community on one of the world's

Re: [Linuxptp-users] reboot when using -E linreg on phc2sys results in 2 second offset.

and libc is this? Can you please check what value has the realtime_hz variable in clockadj.c? -- Miroslav Lichvar -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://s

Re: [Linuxptp-users] Selecting a master

rces like NTP. It is recommended by the Enterprise profile. You can easily do this with the timemaster program from linuxptp. -- Miroslav Lichvar -- Check out the vibrant tech community on one of the world's most enga

Re: [Linuxptp-users] clockcheck jumps forwards and backwards

shouldn't, possibly triggering some feedback loop between ptp4l and phc2sys. What HW/driver and linuxptp version is this? Can you please post your ptp4l config and command-line options used for ptp4l and phc2sys? Having full logs with

Re: [Linuxptp-users] timemaster and phc2sys

phc2sys doesn't care which servo is selected. With the ntpshm servo, it's another process controlling the clock instead of phc2sys. If timemaster started phc2sys without -r, it wouldn't try to synchronize the system clock and the ntpshm servo wouldn't write

Re: [Linuxptp-users] Overriding hardware timestamping with /etc/timemaster.conf

ld use HW timestamping on eth0, but if there is no master in domain 1 on your network, it wouldn't do anything. -- Miroslav Lichvar -- Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot

Re: [Linuxptp-users] Want to reduce offset (which is distance dependant) between boundary clocks.

left side you have one 3.3V pin and two ground pins. > > The signal level is CMOS, and there is no ESD protection at all. > Be careful! Great, thanks for the information. I'll see if I can get an i210 and connect a GPS PPS signal to it. The PPS is at the TTL level so I guess I just

Re: [Linuxptp-users] Missing Sanity Checks for malloc()/calloc()/strdup() in linuxptp-1.5

is that wise. It depends on the kernel overcommit configuration. In the default configuration getting NULL is unlikely, but that doesn't mean it should result in a segfault. I'm just not convinced there is any point in trying to recover from that. -- Miroslav Lichvar

Re: [Linuxptp-users] Missing Sanity Checks for malloc()/calloc()/strdup() in linuxptp-1.5

) when the allocation fails, and use the wrappers everywhere in the code. -- Miroslav Lichvar -- ___ Linuxptp-users mailing list Linuxptp-users@lists.sourceforge.net https

Re: [Linuxptp-users] Grandmaster Auto-Negotiation and Reconfiguration of phc2sys to ptp4l Synchronization

to be synchronized by chronyd, using a PTP domain as the only time source and serving time over NTP to clients, the timemaster configuration file could be: [ptp_domain 0] interfaces eth0 [chrony.conf] makestep 1 3 rtcsync allow driftfile /var/lib/chrony/drift -- Miroslav Lichvar

Re: [Linuxptp-users] Grandmaster Auto-Negotiation and Reconfiguration of phc2sys to ptp4l Synchronization

time with the LOCAL driver/local stratum option with no other time sources listed in the config. For example: ptp4l -i eth0 phc2sys -a -r -r chronyd 'local stratum 1' 'allow' -- Miroslav Lichvar

Re: [Linuxptp-users] Grandmaster Auto-Negotiation and Reconfiguration of phc2sys to ptp4l Synchronization

to configure timemaster to serve local time over PTP. phc2sys would need to allow that first. -- Miroslav Lichvar -- ___ Linuxptp-users mailing list Linuxptp-users

Re: [Linuxptp-users] sanity_freq_limit

% is a safe value for SW timestamping. If you see clockcheck warning messages, it's probably a bug in the kernel/driver. With HW timestamping a limit of a few hundreds of ppm should be enough to cover the frequency offset between a typical system clock and PTP clock. -- Miroslav Lichvar

Re: [Linuxptp-users] Expected throughput of the ptp4l

unstable clocks or large jitters, with careful PI configuration keeping the frequency error below 50 ppb shouldn't be difficult even at the default 1Hz sync rate. -- Miroslav Lichvar -- Dive into the World of Parallel

Re: [Linuxptp-users] Port option: logMinDelayReqInterval

. That option needs to be set on master. On slaves it sets only the initial value, after receiving first delay response message they will switch to the value announced by the master. -- Miroslav Lichvar -- Dive into the World

Re: [Linuxptp-users] ptp4l output messages/statistics

than summary_interval (1 second by default). See the summary_interval description in the ptp4l man page. -- Miroslav Lichvar -- ___ Linuxptp-users mailing list Linuxptp-users

<    1   2   3