Message ID | 1393545478-14908-2-git-send-email-sebastian.capella@linaro.org |
---|---|
State | Superseded |
Headers | show
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[76.93.135.111]) by mx.google.com with ESMTPSA id ns7sm17470517pbc.32.2014.02.27.15.58.07 for <multiple recipients> (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Thu, 27 Feb 2014 15:58:09 -0800 (PST) From: Sebastian Capella <sebastian.capella@linaro.org> To: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linaro-kernel@lists.linaro.org, linux-arm-kernel@lists.infradead.org Cc: Sebastian Capella <sebastian.capella@linaro.org>, Russell King <linux@arm.linux.org.uk>, Andrew Morton <akpm@linux-foundation.org>, Thomas Gleixner <tglx@linutronix.de>, Will Deacon <will.deacon@arm.com>, Robin Holt <robin.m.holt@gmail.com>, Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Subject: [PATCH v6 1/2] ARM: avoid tracers in soft_restart Date: Thu, 27 Feb 2014 15:57:57 -0800 Message-Id: <1393545478-14908-2-git-send-email-sebastian.capella@linaro.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1393545478-14908-1-git-send-email-sebastian.capella@linaro.org> References: <1393545478-14908-1-git-send-email-sebastian.capella@linaro.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: list List-ID: <patchwork-forward.linaro.org> X-Mailing-List: linux-kernel@vger.kernel.org X-Removed-Original-Auth: Dkim didn't pass. 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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. */
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@linaro.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will.deacon@arm.com> Cc: Robin Holt <robin.m.holt@gmail.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> --- arch/arm/kernel/process.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)