From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: Petr Mladek <pmladek@suse.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Peter Zijlstra <peterz@infradead.org>,
Steven Rostedt <rostedt@goodmis.org>,
Daniel Thompson <daniel.thompson@linaro.org>,
Jiri Kosina <jkosina@suse.com>, Ingo Molnar <mingo@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
Chris Metcalf <cmetcalf@ezchip.com>,
linux-kernel@vger.kernel.org, x86@kernel.org,
linux-arm-kernel@lists.infradead.org,
adi-buildroot-devel@lists.sourceforge.net,
linux-cris-kernel@axis.com, linux-mips@linux-mips.org,
linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org,
linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
Jan Kara <jack@suse.cz>, Ralf Baechle <ralf@linux-mips.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
David Miller <davem@davemloft.net>
Subject: Re: [PATCH v5 1/4] printk/nmi: generic solution for safe printk in NMI
Date: Wed, 27 Apr 2016 10:31:45 +0100 [thread overview]
Message-ID: <20160427093145.GJ19428@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <1461239325-22779-2-git-send-email-pmladek@suse.com>
On Thu, Apr 21, 2016 at 01:48:42PM +0200, Petr Mladek wrote:
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index cdfa6c2b7626..259543ec6dc9 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -66,6 +66,7 @@ config ARM
> select HAVE_KRETPROBES if (HAVE_KPROBES)
> select HAVE_MEMBLOCK
> select HAVE_MOD_ARCH_SPECIFIC
> + select HAVE_NMI
> select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
> select HAVE_OPTPROBES if !THUMB2_KERNEL
> select HAVE_PERF_EVENTS
> diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
> index baee70267f29..df90bc59bfce 100644
> --- a/arch/arm/kernel/smp.c
> +++ b/arch/arm/kernel/smp.c
> @@ -644,9 +644,11 @@ void handle_IPI(int ipinr, struct pt_regs *regs)
> break;
>
> case IPI_CPU_BACKTRACE:
> + printk_nmi_enter();
> irq_enter();
> nmi_cpu_backtrace(regs);
> irq_exit();
> + printk_nmi_exit();
> break;
>
> default:
For the above,
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
--
RMK's Patch system: http://www.arm.linux.org.uk/developer/patches/
FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up
according to speedtest.net.
next prev parent reply other threads:[~2016-04-27 9:33 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-21 11:48 [PATCH v5 0/4] Cleaning printk stuff in NMI context Petr Mladek
2016-04-21 11:48 ` [PATCH v5 1/4] printk/nmi: generic solution for safe printk in NMI Petr Mladek
2016-04-27 9:31 ` Russell King - ARM Linux [this message]
2017-04-19 17:13 ` Steven Rostedt
2017-04-19 17:21 ` Peter Zijlstra
2017-04-20 3:31 ` Sergey Senozhatsky
2017-04-20 13:11 ` Petr Mladek
2017-04-21 1:57 ` Sergey Senozhatsky
2017-04-21 12:06 ` Petr Mladek
2017-04-24 2:17 ` Sergey Senozhatsky
2017-04-27 13:38 ` Petr Mladek
2017-04-27 14:31 ` Steven Rostedt
2017-04-27 15:28 ` Petr Mladek
2017-04-27 15:42 ` Steven Rostedt
2017-04-28 9:02 ` Peter Zijlstra
2017-04-28 13:44 ` Petr Mladek
2017-04-28 13:58 ` Peter Zijlstra
2017-04-28 14:47 ` Steven Rostedt
2017-04-27 16:14 ` Steven Rostedt
2017-04-28 1:35 ` Sergey Senozhatsky
2017-04-28 12:57 ` Petr Mladek
2017-04-28 14:16 ` Steven Rostedt
2017-04-28 1:25 ` Sergey Senozhatsky
2017-04-28 12:38 ` Petr Mladek
2016-04-21 11:48 ` [PATCH v5 2/4] printk/nmi: warn when some message has been lost in NMI context Petr Mladek
2016-04-27 9:34 ` Russell King - ARM Linux
2016-04-21 11:48 ` [PATCH v5 3/4] printk/nmi: increase the size of NMI buffer and make it configurable Petr Mladek
2016-04-21 11:48 ` [PATCH v5 4/4] printk/nmi: flush NMI messages on the system panic Petr Mladek
2016-04-23 3:49 ` Sergey Senozhatsky
2016-04-26 14:21 ` Petr Mladek
2016-04-27 0:34 ` Sergey Senozhatsky
2016-04-27 0:36 ` [PATCH v5 0/4] Cleaning printk stuff in NMI context Sergey Senozhatsky
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=20160427093145.GJ19428@n2100.arm.linux.org.uk \
--to=linux@arm.linux.org.uk \
--cc=adi-buildroot-devel@lists.sourceforge.net \
--cc=akpm@linux-foundation.org \
--cc=benh@kernel.crashing.org \
--cc=cmetcalf@ezchip.com \
--cc=daniel.thompson@linaro.org \
--cc=davem@davemloft.net \
--cc=jack@suse.cz \
--cc=jkosina@suse.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-cris-kernel@axis.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mips@linux-mips.org \
--cc=linux-s390@vger.kernel.org \
--cc=linux-sh@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=mingo@redhat.com \
--cc=peterz@infradead.org \
--cc=pmladek@suse.com \
--cc=ralf@linux-mips.org \
--cc=rostedt@goodmis.org \
--cc=schwidefsky@de.ibm.com \
--cc=sergey.senozhatsky.work@gmail.com \
--cc=sparclinux@vger.kernel.org \
--cc=tglx@linutronix.de \
--cc=x86@kernel.org \
/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).