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2 Commits

Author SHA1 Message Date
Paul E. McKenney
a959ed627a 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 <neeraj.iitr10@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
 2021-11-30 17:30:29 -08:00
Paul E. McKenney
039f3cc93a rcutorture: Add TRACE02 scenario enabling RCU Tasks Trace IPIs 
This commit adds a TRACE02 scenario which enables preemption and RCU
Tasks Trace IPIs, more specifically, disabling heavyweight readers.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
 2020-04-27 11:03:53 -07:00