| Subject: rcu: Disable RCU_FAST_NO_HZ on RT |
| From: Thomas Gleixner <tglx@linutronix.de> |
| Date: Sun, 28 Oct 2012 13:26:09 +0000 |
| |
| This uses a timer_list timer from the irq disabled guts of the idle |
| code. Disable it for now to prevent wreckage. |
| |
| Signed-off-by: Thomas Gleixner <tglx@linutronix.de> |
| |
| --- |
| kernel/rcu/Kconfig | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| --- a/kernel/rcu/Kconfig |
| +++ b/kernel/rcu/Kconfig |
| @@ -172,7 +172,7 @@ config RCU_FANOUT_LEAF |
| |
| config RCU_FAST_NO_HZ |
| bool "Accelerate last non-dyntick-idle CPU's grace periods" |
| - depends on NO_HZ_COMMON && SMP && RCU_EXPERT |
| + depends on NO_HZ_COMMON && SMP && RCU_EXPERT && !PREEMPT_RT_FULL |
| default n |
| help |
| This option permits CPUs to enter dynticks-idle state even if |
