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 [thread overview]
Message-ID: <1393545478-14908-2-git-send-email-sebastian.capella@linaro.org> (raw)
In-Reply-To: <1393545478-14908-1-git-send-email-sebastian.capella@linaro.org>
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(-)
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
next prev parent reply other threads:[~2014-02-27 23:57 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-27 23:57 [PATCH v6 0/2] hibernation support on ARM Sebastian Capella
2014-02-27 23:57 ` Sebastian Capella [this message]
2014-02-27 23:57 ` [PATCH v6 2/2] ARM hibernation / suspend-to-disk Sebastian Capella
2014-02-28 0:09 ` Stephen Boyd
2014-02-28 1:47 ` Russ Dill
2014-02-28 2:19 ` Stephen Boyd
2014-02-28 10:20 ` Russell King - ARM Linux
[not found] ` <20140228181731.29118.41809@capellas-linux>
2014-03-05 2:28 ` Sebastian Capella
2014-06-02 16:57 ` Sebastian Capella
2014-02-28 9:50 ` Lorenzo Pieralisi
2014-02-28 20:15 ` Sebastian Capella
2014-02-28 22:49 ` Lorenzo Pieralisi
2014-02-28 23:38 ` Sebastian Capella
2014-03-04 9:55 ` Sebastian Capella
2014-03-04 11:17 ` Lorenzo Pieralisi
2014-03-05 0:18 ` Sebastian Capella
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