[ 3643.212517] stap_942f8f51f3120ab8704dd8b4c01b60_396900 (group.stap): systemtap: 4.8/0.188, base: ffffffffc0b92000, memory: 76data/52text/1ctx/32870net/140alloc kb, probes: 32 [ 3643.213718] Scheduler tracepoints stat_sleep, stat_iowait, stat_blocked and stat_runtime require the kernel parameter schedstats=enable or kernel.sched_schedstats=1