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>
Subject: [PATCH v3 2/3] ARM: avoid tracers in soft_restart
Date: Tue, 25 Feb 2014 16:01:59 -0800 [thread overview]
Message-ID: <1393372920-3896-3-git-send-email-sebastian.capella@linaro.org> (raw)
In-Reply-To: <1393372920-3896-1-git-send-email-sebastian.capella@linaro.org>
Use of tracers in local_irq_disable is causes abort loops when called
with irqs disabled using a temporary stack. 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>
---
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:[~2014-02-26 0:02 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-26 0:01 [PATCH v3 0/3] hibernation support on ARM Sebastian Capella
2014-02-26 0:01 ` [PATCH v3 1/3] Fix hibernation restore hang in freeze_processes Sebastian Capella
2014-02-26 0:37 ` Rafael J. Wysocki
2014-02-26 0:01 ` Sebastian Capella [this message]
2014-02-26 0:02 ` [PATCH v3 3/3] ARM hibernation / suspend-to-disk Sebastian Capella
2014-02-27 22:18 ` Pavel Machek
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1393372920-3896-3-git-send-email-sebastian.capella@linaro.org \
--to=sebastian.capella@linaro.org \
--cc=akpm@linux-foundation.org \
--cc=linaro-kernel@lists.linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=linux@arm.linux.org.uk \
--cc=robin.m.holt@gmail.com \
--cc=tglx@linutronix.de \
--cc=will.deacon@arm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).