In my program, the value of the 64-bit time base register is read out, and you will find the later value is even smaller than the earlier value from the log “log_timebase”. While the kernel depends on the accuracy of the timebase for the compensation of the lost PIT interrupt, the negative value between two continual timebase reading will bring to the jump of the jiffies. And this timebase problem will bring to the instability of the gettimeofday system call.
Do you have any idea about this problem, thanks for your any advice. Attached is the code and log.
Thanks
Gino