Hi, We have the following patch applied to the RT tree: commit a9d3cc781a3306bfa332fa7cb6134b70696058d5 Author: Josh Cartwright <joshc@xxxxxx> Date: Tue Oct 27 07:31:53 2015 -0500 net: Make synchronize_rcu_expedited() conditional on !RT_FULL However, as noted by Michael, making rcu_normal=1 default in the RT kernel should have the same effect (ie. not calling synchronize_sched_expedited()). So, honest question, is there a reason not to: 1. Drop the patch above 2. Make rcu_normal=1 default? -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html