[PATCH v4 1/2] ARM: avoid tracers in soft_restart
Sebastian Capella
sebastian.capella at linaro.org
Wed Feb 26 14:10:56 EST 2014
Use of tracers in local_irq_disable is causes recursive aborts when
called with irqs disabled and using a temporary stack (hibernation).
Replace local_irq_disable with raw_local_irq_disable instead to
avoid tracers.
Signed-off-by: Sebastian Capella <sebastian.capella at linaro.org>
Cc: Russell King <linux at arm.linux.org.uk>
Cc: Andrew Morton <akpm at linux-foundation.org>
Cc: Thomas Gleixner <tglx at linutronix.de>
Cc: Will Deacon <will.deacon at arm.com>
Cc: Robin Holt <robin.m.holt at gmail.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi at arm.com>
---
arch/arm/kernel/process.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 92f7b15..f58b723 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -100,7 +100,7 @@ void soft_restart(unsigned long addr)
u64 *stack = soft_restart_stack + ARRAY_SIZE(soft_restart_stack);
/* Disable interrupts first */
- local_irq_disable();
+ raw_local_irq_disable();
local_fiq_disable();
/* Disable the L2 if we're the last man standing. */
--
1.7.9.5
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