Messages in this thread Patch in this message | | | From | "Paul E. McKenney" <> | Subject | [PATCH rcu 4/5] scftorture: Count reschedule IPIs | Date | Wed, 15 Sep 2021 16:41:40 -0700 |
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Currently, only those IPIs that invoke scftorture's scf_handler() IPI handler function are counted. This means that runs exercising only scftorture.weight_resched will look like they have made no forward progress, resulting in "GP HANG" complaints from the rcutorture scripting. This commit therefore increments the scf_invoked_count per-CPU counter immediately after calling resched_cpu().
Fixes: 1ac78b49d61d4 ("scftorture: Add an alternative IPI vector") Signed-off-by: Paul E. McKenney <paulmck@kernel.org> --- kernel/scftorture.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/kernel/scftorture.c b/kernel/scftorture.c index 74348abc792b..00bba2bdd4d1 100644 --- a/kernel/scftorture.c +++ b/kernel/scftorture.c @@ -341,6 +341,7 @@ static void scftorture_invoke_one(struct scf_statistics *scfp, struct torture_ra cpu = torture_random(trsp) % nr_cpu_ids; scfp->n_resched++; resched_cpu(cpu); + this_cpu_inc(scf_invoked_count); } break; case SCF_PRIM_SINGLE: -- 2.31.1.189.g2e36527f23
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