[Crash-utility] What is the unit for 'last_arrival' in 'task_struct.sched_info.last_arrival'.

Hi, What is the unit for 'last_arrival' in 'task_struct.sched_info.last_arrival' ? I see that this value is used by 'ps -l' crash-utility command. -l display the task last_run or timestamp value, whichever applies, of selected, or all, tasks; the list is sorted with the most recently-run task (largest last_run/timestamp) shown first. I see that this value (16 decimal digits) is much higher than jiffies value (10 decimal digits) in my crash dumps. This value (unsigned long long) seems to be equal to the 'jiffies' (unsigned long) value when the task was scheduled. crash> p jiffies jiffies = $9 = 5310085968 crash> crash> ps -l .. [4058835599089874] PID: 4136 TASK: ffff8801309ce640 CPU: 4 COMMAND: "kcapwdt" ... System info: ----------------- MACHINE: x86_64 (2533 Mhz) Linux Kernel Version : 3.2.30 Thanks, Saravanan