Hi Ingo, Please accept these patches into the rt tree which convert the existing RCU tracing mechanism for Preempt RCU and RCU Boost into markers. These patches are based upon the 2.6.24-rc5-rt1 kernel tree. Along with marker transition, the RCU Tracing infrastructure has also been modularised to be built as a kernel module, thereby enabling runtime changes to the RCU Tracing infrastructure. Patch [1/2] - Patch that converts the Preempt RCU tracing in rcupreempt.c into markers. Patch [1/2] - Patch that converts the Preempt RCU Boost tracing in rcupreempt-boost.c into markers. Thanks, K.Prasad (prasad@xxxxxxxxxxxxxxxxxx) - 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