Provided by: systemtap-doc_3.1-3ubuntu0.1_all 

NAME
probe::scheduler.wait_task - Waiting on a task to unschedule (become inactive)
SYNOPSIS
scheduler.wait_task
VALUES
task_priority
priority of the task
task_pid
PID of the task the scheduler is waiting on
name
name of the probe point
SEE ALSO
tapset::scheduler(3stap)
SystemTap Tapset Reference March 2016 PROBE::SCHEDULER.W(3stap)