[ 2774.631245] stap_54bcd8b1caf92974952fcf07fae62f_331787 (group.stap): systemtap: 4.7/0.187, base: ffffffffc0bc3000, memory: 260data/52text/0ctx/16486net/134alloc kb, probes: 32 [ 2774.631510] Scheduler tracepoints stat_sleep, stat_iowait, stat_blocked and stat_runtime require the kernel parameter schedstats=enable or kernel.sched_schedstats=1