[Linuxptp-users] increasing tx_timestamp_timeout

[Marcel H. <mar...@gm...>]

Hi,

I have a problem to sync two pc's.
1: Linux laptop with 5.4.5-rt3 kernel
2: Linux PC with 4.9.115-rt93 Kernel and I210 interface

I start the ptp4l master on my pc (2) with:
sudo daemonize -E BUILD_ID=dontKillMe -o /var/log/ptp4l.log -e
/var/log/ptp4l.err.log /usr/bin/taskset -c 1 chrt 90 /usr/local/sbin/ptp4l
-i enp3s0 -2 -mq -f /etc/linuxptp/gPTP.cfg --step_threshold=1
--fault_reset_interval=0 --announceReceiptTimeout=10
sudo pmc -u -b 0 -t 1 "SET GRANDMASTER_SETTINGS_NP clockClass 248
clockAccuracy 0xfe offsetScaledLogVariance 0xffff currentUtcOffset 37
leap61 0 leap59 0 currentUtcOffsetValid 1 ptpTimescale 1 timeTraceable 1
frequencyTraceable 0 timeSource 0xa0"
sudo daemonize -E BUILD_ID=dontKillMe -o /var/log/phc2sys.log -e
/var/log/phc2sys.err.log /usr/bin/taskset -c 1 chrt 89
/usr/local/sbin/phc2sys -s enp3s0 -c CLOCK_REALTIME --step_threshold=1 -w -m

I got no error logs but after a short time I got the following status:
● ptp4l.service - Precision Time Protocol (PTP) service
   Loaded: loaded (/lib/systemd/system/ptp4l.service; enabled; vendor
preset: enabled)
   Active: active (running) since Thu 2020-04-23 18:25:00 CEST; 1h 13min ago
     Docs: man:ptp4l
 Main PID: 628 (ptp4l)
    Tasks: 1 (limit: 4915)
   CGroup: /system.slice/ptp4l.service
           └─628 /usr/sbin/ptp4l -f /etc/linuxptp/ptp4l.conf -i enp3s0

Apr 23 18:47:36 student-Precision-T1700 ptp4l[628]: [1385.935] increasing
tx_timestamp_timeout may correct this issue, but it is likely cau
Apr 23 18:47:36 student-Precision-T1700 ptp4l[628]: [1385.935] port 1: send
sync failed
Apr 23 18:47:36 student-Precision-T1700 ptp4l[628]: [1385.935] port 1:
MASTER to FAULTY on FAULT_DETECTED (FT_UNSPECIFIED)
Apr 23 18:47:52 student-Precision-T1700 ptp4l[628]: [1401.936] driver
changed our HWTSTAMP options
Apr 23 18:47:52 student-Precision-T1700 ptp4l[628]: [1401.936] tx_type   1
not 1
Apr 23 18:47:52 student-Precision-T1700 ptp4l[628]: [1401.936] rx_filter 1
not 12
Apr 23 18:47:52 student-Precision-T1700 ptp4l[628]: [1401.936] port 1:
FAULTY to LISTENING on FAULT_CLEARED
Apr 23 18:47:59 student-Precision-T1700 ptp4l[628]: [1408.504] port 1:
LISTENING to MASTER on ANNOUNCE_RECEIPT_TIMEOUT_EXPIRES
Apr 23 18:47:59 student-Precision-T1700 ptp4l[628]: [1408.504] selected
best master clock b49691.fffe.2b6901
Apr 23 18:47:59 student-Precision-T1700 ptp4l[628]: [1408.504] assuming the
grand master role

on my laptop (1) I start the slave with:
sudo daemonize -E BUILD_ID=dontKillMe -o /var/log/ptp4l.log -e
/var/log/ptp4l.err.log /usr/bin/taskset -c 1 chrt 90 /usr/local/sbin/ptp4l
-i enp0s31f6 -2 -mq -s -f /etc/linuxptp/gPTP.cfg --step_threshold=1
--fault_reset_interval=0 --announceReceiptTimeout=10
sudo pmc -u -b 0 -t 1 "SET GRANDMASTER_SETTINGS_NP clockClass 248
clockAccuracy 0xfe offsetScaledLogVariance 0xffff currentUtcOffset 37
leap61 0 leap59 0 currentUtcOffsetValid 1 ptpTimescale 1 timeTraceable 1
frequencyTraceable 0 timeSource 0xa0"
sudo daemonize -E BUILD_ID=dontKillMe -o /var/log/phc2sys.log -e
/var/log/phc2sys.err.log /usr/bin/taskset -c 1 chrt 89
/usr/local/sbin/phc2sys -s enp0s31f6 -c CLOCK_REALTIME --step_threshold=1
-w -m

the ptp4l error log shows:
ptp4l[26624.453]: port 1: master state recommended in slave only mode
ptp4l[26624.453]: port 1: defaultDS.priority1 probably misconfigured
ptp4l[30399.153]: timed out while polling for tx timestamp
ptp4l[30399.153]: increasing tx_timestamp_timeout may correct this issue,
but it is likely caused by a driver bug
ptp4l[30399.153]: port 1: send peer delay response failed
ptp4l[31677.494]: port 1: received PDELAY_RESP without timestamp

I am happy about every suggestion.
Best wishes

Marcel