On Sun, Mar 08, 2020 at 10:25:34AM +0700, Michael Tang wrote: > HW/SW in slave: > - CPU: Intel Core i9, runs CentOS 7 with LinuxPTP 2.0
Looks like cent os 7 has a really old kernel version, and > - NIC: an Intel NIC supports hardware timestamp. I can't remember exactly > the model name of NIC now. IIRC, there are Intel MACs that have bugs when reading the time. Actually, these bugs do not affect the time stamping, iirc, and so they do not affect ptp4l but rather phc2sys. You should check your kernel version and Intel MAC and confirm that you have a working combination. Thanks, Richard _______________________________________________ Linuxptp-users mailing list Linuxptp-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-users
