Hi, I have a question wrt. to configuring linuxptp, what are "good values" for tx_timestamp_timeout?
It seems that linuxptp fails to work if the rootfs is mounted with nfs. I debugged this a bit and it seems that already light nfs traffic causes the issue. Below is a log of a machine which boots via flash and around time 1668.627 some data is written via nfs. Is this expected? Is increasing the tx_timestamp_timeout ok or will this cause other issues? Currently the value is still the default: tx_timestamp_timeout 1 kind regards Frank $ sudo /usr/sbin/ptp4l -f /etc/linuxptp/ptp4l.conf -i eth0 -l6 -m ptp4l[1641.641]: selected /dev/ptp0 as PTP clock ptp4l[1641.677]: eth0: SO_SELECT_ERR_QUEUE: Protocol not available ptp4l[1641.685]: port 1: INITIALIZING to LISTENING on INITIALIZE ptp4l[1641.690]: port 0: INITIALIZING to LISTENING on INITIALIZE ptp4l[1642.494]: port 1: new foreign master 0090f5.fffe.fbb3b0-1 ptp4l[1646.494]: selected best master clock 0090f5.fffe.fbb3b0 ptp4l[1646.494]: port 1: LISTENING to UNCALIBRATED on RS_SLAVE ptp4l[1648.630]: master offset -21491 s0 freq +16279 path delay 35494 ptp4l[1649.630]: master offset -21565 s1 freq +16205 path delay 35676 ptp4l[1651.630]: master offset -1507 s2 freq +14698 path delay 35431 ptp4l[1651.635]: port 1: UNCALIBRATED to SLAVE on MASTER_CLOCK_SELECTED ptp4l[1652.630]: master offset 137 s2 freq +15890 path delay 35431 ptp4l[1653.630]: master offset 657 s2 freq +16451 path delay 35368 ptp4l[1654.630]: master offset 371 s2 freq +16362 path delay 35431 ptp4l[1655.630]: master offset 465 s2 freq +16567 path delay 35368 ptp4l[1656.630]: master offset 124 s2 freq +16366 path delay 35368 ptp4l[1657.630]: master offset 27 s2 freq +16306 path delay 35368 ptp4l[1658.630]: master offset 101 s2 freq +16388 path delay 35337 ptp4l[1659.630]: master offset 67 s2 freq +16385 path delay 35337 ptp4l[1660.630]: master offset -84 s2 freq +16254 path delay 35337 ptp4l[1661.630]: master offset 52 s2 freq +16364 path delay 35337 ptp4l[1662.630]: master offset 66 s2 freq +16394 path delay 35314 ptp4l[1663.630]: master offset -236 s2 freq +16112 path delay 35376 ptp4l[1664.630]: master offset 10 s2 freq +16287 path delay 35376 ptp4l[1665.630]: master offset -117 s2 freq +16163 path delay 35451 ptp4l[1666.630]: master offset 249 s2 freq +16494 path delay 35396 ptp4l[1667.630]: master offset -191 s2 freq +16129 path delay 35465 ptp4l[1668.627]: timed out while polling for tx timestamp ptp4l[1668.627]: increasing tx_timestamp_timeout may correct this issue, but it is likely caused by a driver bug ptp4l[1668.627]: port 1: send delay request failed ptp4l[1668.628]: port 1: SLAVE to FAULTY on FAULT_DETECTED (FT_UNSPECIFIED) ptp4l[1684.744]: eth0: SO_SELECT_ERR_QUEUE: Protocol not available ptp4l[1684.757]: port 1: FAULTY to LISTENING on FAULT_CLEARED ptp4l[1688.495]: port 1: new foreign master 0090f5.fffe.fbb3b0-1 ptp4l[1692.606]: port 1: LISTENING to MASTER on ANNOUNCE_RECEIPT_TIMEOUT_EXPIRES ptp4l[1692.607]: selected best master clock 78a504.fffe.dd2fc6 ptp4l[1692.607]: assuming the grand master role ptp4l[1693.608]: timed out while polling for tx timestamp ptp4l[1693.609]: increasing tx_timestamp_timeout may correct this issue, but it is likely caused by a driver bug ptp4l[1693.609]: port 1: send sync failed ptp4l[1693.609]: port 1: MASTER to FAULTY on FAULT_DETECTED (FT_UNSPECIFIED) ptp4l[1709.692]: eth0: SO_SELECT_ERR_QUEUE: Protocol not available ptp4l[1709.698]: port 1: FAULTY to LISTENING on FAULT_CLEARED ptp4l[1710.496]: port 1: new foreign master 0090f5.fffe.fbb3b0-1 ptp4l[1716.471]: port 1: LISTENING to MASTER on ANNOUNCE_RECEIPT_TIMEOUT_EXPIRES ptp4l[1716.472]: selected best master clock 78a504.fffe.dd2fc6 ptp4l[1716.472]: assuming the grand master role ptp4l[1717.476]: timed out while polling for tx timestamp ptp4l[1717.479]: increasing tx_timestamp_timeout may correct this issue, but it is likely caused by a driver bug ptp4l[1717.480]: port 1: send sync failed ptp4l[1717.480]: port 1: MASTER to FAULTY on FAULT_DETECTED (FT_UNSPECIFIED) ptp4l[1733.604]: eth0: SO_SELECT_ERR_QUEUE: Protocol not available ptp4l[1733.611]: port 1: FAULTY to LISTENING on FAULT_CLEARED ptp4l[1734.496]: port 1: new foreign master 0090f5.fffe.fbb3b0-1 ------------------------------------------------------------------------------ _______________________________________________ Linuxptp-users mailing list Linuxptp-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-users
