Le Sat, Mar 25, 2023 at 05:33:14PM +0000, Joel Fernandes (Google) a écrit : > From: Neeraj Upadhyay <quic_neeraju@xxxxxxxxxxx> > > The call to synchronize_srcu() from rcu_tasks_postscan() can be stalled > by a task getting stuck in do_exit() between that function's calls to > exit_tasks_rcu_start() and exit_tasks_rcu_finish(). To ease diagnosis > of this situation, print a stall warning message every rcu_task_stall_info > period when rcu_tasks_postscan() is stalled. > > [ paulmck: Adjust to handle CONFIG_SMP=n. ] > > Reported-by: Mark Brown <broonie@xxxxxxxxxx> > Link: https://lore.kernel.org/rcu/20230111212736.GA1062057@paulmck-ThinkPad-P17-Gen-1/ > Signed-off-by: Neeraj Upadhyay <quic_neeraju@xxxxxxxxxxx> > Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx> > Signed-off-by: Joel Fernandes (Google) <joel@xxxxxxxxxxxxxxxxx> Acked-by: Frederic Weisbecker <frederic@xxxxxxxxxx>
