On Tue, Apr 13, 2021 at 11:36:00AM +0200, Diego García Prieto wrote: > Kernel version: Linux 4.9.18-rt14-rt14 (a preempt-RT patch)
I don't know much about RT kernels. > NIC: I210 Gigabit Network Connection - Vendor: Intel corporation - Version: > 03 > > Driver: igb That NIC and driver are solid in my experience, so I'd suspect an issue with the system clock. Check current and available clocksources: cat /sys/devices/system/clocksource/clocksource0/current_clocksource cat /sys/devices/system/clocksource/clocksource0/available_clocksource and try switching to a different clocksource, e.g. echo hpet > /sys/devices/system/clocksource/clocksource0/current_clocksource -- Miroslav Lichvar _______________________________________________ Linuxptp-users mailing list Linuxptp-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-users
