We see corrupt HW clock time every now and then(really hard to reproduce) Our RTC is a DS1388 on an I2C bus.
Looking at ntp_notify_cmos_timer() and it's delayed work queue impl. I wonder if there could be a race here w.r.t reboot ? Could the 11 minute update kick in just as the system is about to reset the CPU? I am on 4.14.51, ppc32 and using the ppc_md.restart() hook which will reset the CPU immediately. Question, is safe to call ntp_notify_cmos_timer() when the work queue is already armed(like do_adjtimex() does) ? Jocke
