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| author | Paul E. McKenney <paulmck@kernel.org> | 2020-07-23 15:53:02 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2020-08-24 18:38:38 -0700 |
| commit | 65bd77f554336407f5fd7ced7a6df686767fba21 (patch) | |
| tree | 439a1b46519f76e6ef8f17aa0ae18ba2e6d708f7 /kernel/scftorture.c | |
| parent | 9e66bf03f9c538863e614a72c5799bcd9579630e (diff) | |
| download | lwn-65bd77f554336407f5fd7ced7a6df686767fba21.tar.gz lwn-65bd77f554336407f5fd7ced7a6df686767fba21.zip | |
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>
Diffstat (limited to 'kernel/scftorture.c')
| -rw-r--r-- | kernel/scftorture.c | 1 |
1 files changed, 1 insertions, 0 deletions
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); |