[Linuxptp-users] [Debian] Unable to start ptp4l as a service

[Robin S. <rs...@fr...>]

Hi everyone.

I have managed to seamlessly set up my Debian machine as a PTP master using the following command :

 # ptp4l -f /etc/linuxptp/ptp4l.conf &


And here is /etc/linuxptp/ptp4l.conf (I used the default one, tweaked some options and added my network interface in the end) :

[global]
#
# Default Data Set
#
twoStepFlag		1
slaveOnly		0
priority1		0
priority2		1
domainNumber		0
clockClass		0
clockAccuracy		0xFE
offsetScaledLogVariance	0xFFFF
free_running		0
freq_est_interval	1
dscp_event		46
dscp_general		34
#
# Port Data Set
#
logAnnounceInterval	1
logSyncInterval		-3
logMinDelayReqInterval	0
logMinPdelayReqInterval	0
announceReceiptTimeout	3
syncReceiptTimeout	0
delayAsymmetry		0
fault_reset_interval	4
neighborPropDelayThresh	20000000
#
# Run time options
#
assume_two_step		0
logging_level		7
path_trace_enabled	0
follow_up_info		0
hybrid_e2e		0
tx_timestamp_timeout	1
use_syslog		1
verbose			0
summary_interval	0
kernel_leap		1
check_fup_sync		0
#
# Servo Options
#
pi_proportional_const	0.0
pi_integral_const	0.0
pi_proportional_scale	0.0
pi_proportional_exponent	-0.3
pi_proportional_norm_max	0.7
pi_integral_scale	0.0
pi_integral_exponent	0.4
pi_integral_norm_max	0.3
step_threshold		0.0
first_step_threshold	0.00002
max_frequency		900000000
clock_servo		pi
sanity_freq_limit	200000000
ntpshm_segment		0
#
# Transport options
#
transportSpecific	0x0
ptp_dst_mac		01:1B:19:00:00:00
p2p_dst_mac		01:80:C2:00:00:0E
udp_ttl			1
udp6_scope		0x0E
uds_address		/var/run/ptp4l
#
# Default interface options
#
network_transport	UDPv4
delay_mechanism		E2E
time_stamping		software
tsproc_mode		filter
delay_filter		moving_median
delay_filter_length	10
egressLatency		0
ingressLatency		0
boundary_clock_jbod	0
#
# Clock description
#
productDescription	GLenoBoby;;
revisionData		;;
manufacturerIdentity	00:00:00
userDescription		GLenoBoby's Debian PTP master
timeSource		0xA0

[enp0s25]




There is no problem with it this way. Now I would like to start ptp4l as a service using :

 # service ptp4l start

It outputs nothing to stdout (as expected), and neither to /var/log/messages. 

ps aux | grep ptp4l outputs nothing, and when I check journalctl I get the following :

# journalctl -u ptp4l
Oct 19 13:13:27 GLenovo-Debian systemd[1]: Started Precision Time Protocol (PTP) service.
Oct 19 13:13:27 GLenovo-Debian ptp4l[2934]: [1185.665] ioctl SIOCETHTOOL failed: No such device
Oct 19 13:13:27 GLenovo-Debian ptp4l[2934]: [1185.666] config item (null).assume_two_step is 0
Oct 19 13:13:27 GLenovo-Debian ptp4l[2934]: [1185.666] config item (null).check_fup_sync is 0
Oct 19 13:13:27 GLenovo-Debian ptp4l[2934]: [1185.666] config item (null).tx_timestamp_timeout is 1
Oct 19 13:13:27 GLenovo-Debian ptp4l[2934]: failed to create a clock
Oct 19 13:13:27 GLenovo-Debian systemd[1]: ptp4l.service: Main process exited, code=exited, status=255/n/a
Oct 19 13:13:27 GLenovo-Debian systemd[1]: ptp4l.service: Unit entered failed state.
Oct 19 13:13:27 GLenovo-Debian systemd[1]: ptp4l.service: Failed with result 'exit-code'.



Whatever the modification I tried in the config file, I could it never start as a service, only through the ptp4l command.



Am I missing something ? Maybe I am not looking in the right log file ? I am using the latest linuxptp package from the debian repository.



Here is some info about my system :

Hardware : Lenovo Thinkpad T410

# uname -a
Linux GLenovo-Debian 4.9.0-8-amd64 #1 SMP Debian 4.9.110-3+deb9u6 (2018-10-08) x86_64 GNU/Linux
# ethtool -T enp0s25
Time stamping parameters for enp0s25:
Capabilities:
	software-transmit     (SOF_TIMESTAMPING_TX_SOFTWARE)
	software-receive      (SOF_TIMESTAMPING_RX_SOFTWARE)
	software-system-clock (SOF_TIMESTAMPING_SOFTWARE)
PTP Hardware Clock: none
Hardware Transmit Timestamp Modes: none
Hardware Receive Filter Modes: none



Thanks in advance for your help !