diff options
Diffstat (limited to 'features/rt/leds-trigger-disable-CPU-trigger-on-RT.patch')
| -rw-r--r-- | features/rt/leds-trigger-disable-CPU-trigger-on-RT.patch | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/features/rt/leds-trigger-disable-CPU-trigger-on-RT.patch b/features/rt/leds-trigger-disable-CPU-trigger-on-RT.patch new file mode 100644 index 00000000..c0182d45 --- /dev/null +++ b/features/rt/leds-trigger-disable-CPU-trigger-on-RT.patch @@ -0,0 +1,39 @@ +From fc70c36c08df5b41b07e2c8aa2833f78c0b5b090 Mon Sep 17 00:00:00 2001 +From: Sebastian Andrzej Siewior <bigeasy@linutronix.de> +Date: Thu, 23 Jan 2014 14:45:59 +0100 +Subject: [PATCH 170/191] leds: trigger: disable CPU trigger on -RT + +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) + +Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> +--- + drivers/leds/trigger/Kconfig | 1 + + 1 file changed, 1 insertion(+) + +diff --git a/drivers/leds/trigger/Kconfig b/drivers/leds/trigger/Kconfig +index b77a01bd27f4..aa74e2a05798 100644 +--- a/drivers/leds/trigger/Kconfig ++++ b/drivers/leds/trigger/Kconfig +@@ -64,6 +64,7 @@ config LEDS_TRIGGER_BACKLIGHT + + config LEDS_TRIGGER_CPU + bool "LED CPU Trigger" ++ depends on !PREEMPT_RT + 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 +-- +2.19.1 + |