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From: Thomas Gleixner <tglx@linutronix.de>
Date: Mon, 18 Jul 2011 17:03:52 +0200
Subject: [PATCH 045/354] sched: Disable CONFIG_RT_GROUP_SCHED on RT
Origin: https://git.kernel.org/cgit/linux/kernel/git/rt/linux-stable-rt.git/commit?id=99cae2f5fe3de2754132778ae2de245cc2b0fb3b

Carsten reported problems when running:

  taskset 01 chrt -f 1 sleep 1

from within rc.local on a F15 machine. The task stays running and
never gets on the run queue because some of the run queues have
rt_throttled=1 which does not go away. Works nice from a ssh login
shell. Disabling CONFIG_RT_GROUP_SCHED solves that as well.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 init/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/init/Kconfig b/init/Kconfig
index 45a9846f1464..1793e8bd71ef 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -787,6 +787,7 @@ config CFS_BANDWIDTH
 config RT_GROUP_SCHED
 	bool "Group scheduling for SCHED_RR/FIFO"
 	depends on CGROUP_SCHED
+	depends on !PREEMPT_RT_FULL
 	default n
 	help
 	  This feature lets you explicitly allocate real CPU bandwidth