On Mon, 18 Feb 2013, Tim Sander wrote: > Here is a transtribed backtrace for easier reading: > c0010fac t dump_backtrace > c022c188 T dump_stack > c022c71c t __schedule_bug > c022fb28 t __schedule > c0230644 t rt_spin_lock_slowlock > c0230ba8 T rt_spin_lock > c003a9b8 T __wake_up > c0052a44 t invoke_rcu_callbacks > c0053764 T rcu_check_callbacks > c0026060 T update_process_times That's due to CONFIG_TINY_PREEMPT_RCU=y. That's a known issue, which has been fixed in 3.6-rt. Steven, could you backport that to 3.2/3.4 please ? Thanks, tglx -- 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