From 4464f6a0589d85537759211cb2306c57b3a40486 Mon Sep 17 00:00:00 2001 Message-Id: <4464f6a0589d85537759211cb2306c57b3a40486.1601675151.git.zanussi@kernel.org> In-Reply-To: <5b5a156f9808b1acf1205606e03da117214549ea.1601675151.git.zanussi@kernel.org> References: <5b5a156f9808b1acf1205606e03da117214549ea.1601675151.git.zanussi@kernel.org> From: Thomas Gleixner Date: Sun, 28 Oct 2012 13:26:09 +0000 Subject: [PATCH 043/333] rcu: Disable RCU_FAST_NO_HZ on RT Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.148-rt64.tar.xz 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 --- kernel/rcu/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/rcu/Kconfig b/kernel/rcu/Kconfig index 9210379c0353..644264be90f0 100644 --- 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 -- 2.17.1