On 2025-09-09, Marc Gonzalez <marc.w.gonzalez@xxxxxxx> wrote: > I captured a full trace of this occurrence with > echo *:* > $TRACING/set_event > cat $TRACING/per_cpu/cpu$CPU/trace > trace.$CPU ... > But there is absolutely NOTHING traced between 4606.628019 & 4606.811832. I recommend using the function tracer: # echo function > $TRACING/current_tracer It should not affect your timings for pure-userspace code. This should catch any unintentional kernel activity. John
