Commit 65bd77f5 authored Jul 23, 2020 by Paul E. McKenney

scftorture: Add cond_resched() to test loop

Although the test loop does randomly delay, which would provide quiescent
states and so forth, it is possible for there to be a series of long
smp_call_function*() handler runtimes with no delays, which results in
softlockup and RCU CPU stall warning messages. This commit therefore
inserts a cond_resched() into the main test loop.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

parent 9e66bf03

kernel/scftorture.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -420,6 +420,7 @@ static int scftorture_invoker(void *arg)
		set_cpus_allowed_ptr(current, cpumask_of(cpu));
		was_offline = false;
		}
		cond_resched();
		} while (!torture_must_stop());

		VERBOSE_SCFTORTOUT("scftorture_invoker %d ended", scfp->cpu);

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