From: Paul E. McKenney Date: Thu, 25 Nov 2021 00:04:51 +0000 (-0800) Subject: rcutorture: Test RCU Tasks lock-contention detection X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=a959ed627a426b5bf01cf29c9b011f63459e2345;p=linux.git rcutorture: Test RCU Tasks lock-contention detection This commit adjusts the TRACE02 scenario to use a pair of callback-flood kthreads. This in turn forces lock contention on the single RCU Tasks Trace callback queue, which forces use of all CPUs' queues, thus testing this transition. (No, there is not yet any way to transition back. Cc: Neeraj Upadhyay Signed-off-by: Paul E. McKenney --- diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TRACE02.boot b/tools/testing/selftests/rcutorture/configs/rcu/TRACE02.boot index 9675ad632dcc..c70b5db6c2ae 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/TRACE02.boot +++ b/tools/testing/selftests/rcutorture/configs/rcu/TRACE02.boot @@ -1 +1,2 @@ rcutorture.torture_type=tasks-tracing +rcutorture.fwd_progress=2