Commit 1c83437e authored by Thomas Gleixner's avatar Thomas Gleixner Committed by Ingo Molnar
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sched: Warn on rt throttling

The default rt-throttling is a source of never ending questions. Warn
once when we go into throttling so folks have that info in dmesg.
Signed-off-by: default avatarThomas Gleixner <>
Signed-off-by: default avatarPeter Zijlstra <>

Signed-off-by: default avatarIngo Molnar <>
parent 4939602a
......@@ -655,6 +655,7 @@ static int sched_rt_runtime_exceeded(struct rt_rq *rt_rq)
if (rt_rq->rt_time > runtime) {
rt_rq->rt_throttled = 1;
printk_once(KERN_WARNING "sched: RT throttling activated\n");
if (rt_rq_throttled(rt_rq)) {
return 1;
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