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Date: Wed, 5 Mar 2014 02:50:04 -0800 From: Sebastian Capella <sebastian.capella@...aro.org> To: linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org, linaro-kernel@...ts.linaro.org, linux-arm-kernel@...ts.infradead.org Cc: Sebastian Capella <sebastian.capella@...aro.org>, Russell King <linux@....linux.org.uk>, Andrew Morton <akpm@...ux-foundation.org>, Thomas Gleixner <tglx@...utronix.de>, Will Deacon <will.deacon@....com>, Robin Holt <robin.m.holt@...il.com>, Lorenzo Pieralisi <lorenzo.pieralisi@....com>, Konstantin Khlebnikov <k.khlebnikov@...sung.com>, Steven Capper <steve.capper@...aro.org>, Stephen Warren <swarren@...dia.com>, Tejun Heo <tj@...nel.org> Subject: [PATCH v7 1/2] ARM: avoid tracers in soft_restart 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@...aro.org> Cc: Russell King <linux@....linux.org.uk> Cc: Andrew Morton <akpm@...ux-foundation.org> Cc: Thomas Gleixner <tglx@...utronix.de> Cc: Will Deacon <will.deacon@....com> Cc: Robin Holt <robin.m.holt@...il.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@....com> Cc: Konstantin Khlebnikov <k.khlebnikov@...sung.com> Cc: Steven Capper <steve.capper@...aro.org> Cc: Stephen Warren <swarren@...dia.com> Cc: Tejun Heo <tj@...nel.org> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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