From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>,
RT-users <linux-rt-users@vger.kernel.org>,
Carsten Emde <C.Emde@osadl.org>
Subject: [patch RT 3/7] Disable RT_GROUP_SCHED in PREEMPT_RT_FULL
Date: Wed, 11 Jul 2012 22:05:18 -0000 [thread overview]
Message-ID: <20120711215611.837510935@linutronix.de> (raw)
In-Reply-To: 20120711214552.036760674@linutronix.de
[-- Attachment #1: disable-rt_group_sched-in-preempt_rt_full.patch --]
[-- Type: text/plain, Size: 709 bytes --]
Strange CPU stalls have been observed in RT when RT_GROUP_SCHED
was configured.
Disable it for now.
Signed-off-by: Carsten Emde <C.Emde@osadl.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
init/Kconfig | 1 +
1 file changed, 1 insertion(+)
Index: linux-3.4.4-rt13-64+/init/Kconfig
===================================================================
--- linux-3.4.4-rt13-64+.orig/init/Kconfig
+++ linux-3.4.4-rt13-64+/init/Kconfig
@@ -746,6 +746,7 @@ config RT_GROUP_SCHED
bool "Group scheduling for SCHED_RR/FIFO"
depends on EXPERIMENTAL
depends on CGROUP_SCHED
+ depends on !PREEMPT_RT_FULL
default n
help
This feature lets you explicitly allocate real CPU bandwidth
next prev parent reply other threads:[~2012-07-11 22:06 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-11 22:05 [patch RT 0/7] Various fixes for the stable RT series - part I Thomas Gleixner
2012-07-11 22:05 ` [patch RT 1/7] Latency histogramms: Cope with backwards running local trace clock Thomas Gleixner
2012-07-11 22:05 ` Thomas Gleixner [this message]
2012-07-12 2:36 ` [patch RT 3/7] Disable RT_GROUP_SCHED in PREEMPT_RT_FULL Mike Galbraith
2012-07-11 22:05 ` [patch RT 2/7] Latency histograms: Adjust timer, if already elapsed when programmed Thomas Gleixner
2012-07-11 22:05 ` [patch RT 5/7] slab: Prevent local lock deadlock Thomas Gleixner
2012-07-11 22:05 ` [patch RT 4/7] Latency histograms: Detect another yet overlooked sharedprio condition Thomas Gleixner
2012-07-11 22:05 ` [patch RT 6/7] fs, jbd: pull your plug when waiting for space Thomas Gleixner
2012-07-11 22:05 ` [patch RT 7/7] perf: Make swevent hrtimer run in irq instead of softirq Thomas Gleixner
2012-07-11 23:31 ` [patch RT 0/7] Various fixes for the stable RT series - part I Steven Rostedt
2012-07-12 8:49 ` Thomas Gleixner
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