From 65bd77f554336407f5fd7ced7a6df686767fba21 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Thu, 23 Jul 2020 15:53:02 -0700 Subject: 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 --- kernel/scftorture.c | 1 + 1 file changed, 1 insertion(+) (limited to 'kernel/scftorture.c') diff --git a/kernel/scftorture.c b/kernel/scftorture.c index fc22bcc9a589..554a521ee235 100644 --- a/kernel/scftorture.c +++ b/kernel/scftorture.c @@ -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); -- cgit v1.2.3