From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org,
linux-rt-users <linux-rt-users@vger.kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Carsten Emde <C.Emde@osadl.org>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
John Kacur <jkacur@redhat.com>,
Paul Gortmaker <paul.gortmaker@windriver.com>,
<stable-rt@vger.kernel.org>
Subject: [PATCH RT 12/14] leds: trigger: disable CPU trigger on -RT
Date: Fri, 28 Feb 2014 22:52:21 -0500 [thread overview]
Message-ID: <20140301035237.569667287@goodmis.org> (raw)
In-Reply-To: 20140301035209.031474616@goodmis.org
[-- Attachment #1: 0012-leds-trigger-disable-CPU-trigger-on-RT.patch --]
[-- Type: text/plain, Size: 1910 bytes --]
3.10.32-rt31-rc2 stable review patch.
If anyone has any objections, please let me know.
------------------
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
as it triggers:
|CPU: 0 PID: 0 Comm: swapper Not tainted 3.12.8-rt10 #141
|[<c0014aa4>] (unwind_backtrace+0x0/0xf8) from [<c0012788>] (show_stack+0x1c/0x20)
|[<c0012788>] (show_stack+0x1c/0x20) from [<c043c8dc>] (dump_stack+0x20/0x2c)
|[<c043c8dc>] (dump_stack+0x20/0x2c) from [<c004c5e8>] (__might_sleep+0x13c/0x170)
|[<c004c5e8>] (__might_sleep+0x13c/0x170) from [<c043f270>] (__rt_spin_lock+0x28/0x38)
|[<c043f270>] (__rt_spin_lock+0x28/0x38) from [<c043fa00>] (rt_read_lock+0x68/0x7c)
|[<c043fa00>] (rt_read_lock+0x68/0x7c) from [<c036cf74>] (led_trigger_event+0x2c/0x5c)
|[<c036cf74>] (led_trigger_event+0x2c/0x5c) from [<c036e0bc>] (ledtrig_cpu+0x54/0x5c)
|[<c036e0bc>] (ledtrig_cpu+0x54/0x5c) from [<c000ffd8>] (arch_cpu_idle_exit+0x18/0x1c)
|[<c000ffd8>] (arch_cpu_idle_exit+0x18/0x1c) from [<c00590b8>] (cpu_startup_entry+0xa8/0x234)
|[<c00590b8>] (cpu_startup_entry+0xa8/0x234) from [<c043b2cc>] (rest_init+0xb8/0xe0)
|[<c043b2cc>] (rest_init+0xb8/0xe0) from [<c061ebe0>] (start_kernel+0x2c4/0x380)
Cc: stable-rt@vger.kernel.org
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
drivers/leds/trigger/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/leds/trigger/Kconfig b/drivers/leds/trigger/Kconfig
index 49794b4..3d7245d 100644
--- a/drivers/leds/trigger/Kconfig
+++ b/drivers/leds/trigger/Kconfig
@@ -61,7 +61,7 @@ config LEDS_TRIGGER_BACKLIGHT
config LEDS_TRIGGER_CPU
bool "LED CPU Trigger"
- depends on LEDS_TRIGGERS
+ depends on LEDS_TRIGGERS && !PREEMPT_RT_BASE
help
This allows LEDs to be controlled by active CPUs. This shows
the active CPUs across an array of LEDs so you can see which
--
1.8.5.3
next prev parent reply other threads:[~2014-03-01 3:53 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-01 3:52 [PATCH RT 00/14] Linux 3.10.32-rt31-rc2 Steven Rostedt
2014-03-01 3:52 ` [PATCH RT 01/14] rcu: Dont activate RCU core on NO_HZ_FULL CPUs Steven Rostedt
2014-03-01 3:52 ` [PATCH RT 02/14] timers: do not raise softirq unconditionally Steven Rostedt
2014-03-01 3:52 ` [PATCH RT 03/14] timer: Raise softirq if theres irq_work Steven Rostedt
2014-03-01 3:52 ` [PATCH RT 04/14] timer/rt: Always raise the softirq if theres irq_work to be done Steven Rostedt
2014-03-01 3:52 ` [PATCH RT 05/14] rcutree/rcu_bh_qs: disable irq while calling rcu_preempt_qs() Steven Rostedt
2014-03-01 3:52 ` [PATCH RT 06/14] Revert "x86: Disable IST stacks for debug/int 3/stack fault for PREEMPT_RT" Steven Rostedt
2014-03-01 3:52 ` [PATCH RT 07/14] rt: Make cpu_chill() use hrtimer instead of msleep() Steven Rostedt
2014-03-01 3:52 ` [PATCH RT 08/14] kernel/hrtimer: be non-freezeable in cpu_chill() Steven Rostedt
2014-03-01 3:52 ` [PATCH RT 09/14] irq_work: allow certain work in hard irq context Steven Rostedt
2014-03-01 3:52 ` [PATCH RT 10/14] arm/unwind: use a raw_spin_lock Steven Rostedt
2014-03-01 3:52 ` [PATCH RT 11/14] net: ip_send_unicast_reply: add missing local serialization Steven Rostedt
2014-03-01 3:52 ` Steven Rostedt [this message]
2014-03-01 3:52 ` [PATCH RT 13/14] rcu: Eliminate softirq processing from rcutree Steven Rostedt
2014-03-01 3:52 ` [PATCH RT 14/14] Linux 3.10.32-rt31-rc2 Steven Rostedt
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