| 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> |
| Cc: stable-rt@vger.kernel.org |
| --- |
| init/Kconfig | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| Index: linux-stable/init/Kconfig |
| =================================================================== |
| --- linux-stable.orig/init/Kconfig |
| +++ linux-stable/init/Kconfig |
| @@ -504,7 +504,7 @@ config RCU_FANOUT_EXACT |
| |
| config RCU_FAST_NO_HZ |
| bool "Accelerate last non-dyntick-idle CPU's grace periods" |
| - depends on NO_HZ && SMP |
| + depends on NO_HZ && SMP && !PREEMPT_RT_FULL |
| default n |
| help |
| This option causes RCU to attempt to accelerate grace periods |
