Hi Thomas, Two questions about spin_lock() in include/linux/spinlock_rt.h. (1) spin_lock() and related functions invoke migrate_disable() and migrate_enable(). These functions are created by your patch, sched-migrate-disable.patch, and are EXPORT_SYMBOL_GPL(). Would you be willing to change these to EXPORT_SYMBOL()? (2) What is the purpose of the migrate_disable() in the spin lock? Is it a correctness issue, or a performance issue, or something else? Thanks! -Frank -- 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