Subject: sched: Disable CONFIG_RT_GROUP_SCHED on RT
From: Thomas Gleixner <tglx@linutronix.de>
Date: Mon, 18 Jul 2011 17:03:52 +0200
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/wagi/linux-stable-rt.git
Git-commit: 39798b6cb5673f6771023ed33e7ffd0d3af49df2
Patch-mainline: Queued in subsystem maintainer repository
References: SLE Realtime Extension
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>
Signed-off-by: Daniel Wagner <dwagner@suse.de>
---
init/Kconfig | 1 +
1 file changed, 1 insertion(+)
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -918,6 +918,7 @@ config CFS_BANDWIDTH
config RT_GROUP_SCHED
bool "Group scheduling for SCHED_RR/FIFO"
depends on CGROUP_SCHED
+ depends on !PREEMPT_RT
default n
help
This feature lets you explicitly allocate real CPU bandwidth