From: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
To: Petr Mladek <pmladek@suse.com>
Cc: kbuild test robot <lkp@intel.com>,
kbuild-all@01.org, Andrew Morton <akpm@linux-foundation.org>,
Peter Zijlstra <peterz@infradead.org>,
Steven Rostedt <rostedt@goodmis.org>,
Russell King <rmk+kernel@arm.linux.org.uk>,
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
Subject: Re: [PATCH v4 5/5] printk/nmi: flush NMI messages on the system panic
Date: Mon, 4 Apr 2016 13:52:00 +0900 [thread overview]
Message-ID: <20160404045200.GE6164@swordfish> (raw)
In-Reply-To: <20160331123657.GN5522@pathway.suse.cz>
Hello,
On (03/31/16 14:36), Petr Mladek wrote:
[..]
> #ifdef CONFIG_PRINTK_NMI
> +#define deferred_console_in_nmi() in_nmi()
> #else
> +#define deferred_console_in_nmi() 0
[..]
> + if (!in_sched && !deferred_console_in_nmi()) {
> lockdep_off();
> /*
> * Try to acquire and then immediately release the console
or use SCHED level for nmi messages instead of defining deferred_console_in_nmi()?
so !in_sched will work for both SCHED and NMI messages.
-ss
prev parent reply other threads:[~2016-04-04 4:50 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-30 15:53 [PATCH v4 0/5] Cleaning printk stuff in NMI context Petr Mladek
2016-03-30 15:53 ` [PATCH v4 1/5] printk/nmi: generic solution for safe printk in NMI Petr Mladek
2016-04-04 4:49 ` Sergey Senozhatsky
2016-04-04 9:38 ` Petr Mladek
2016-04-20 13:49 ` Petr Mladek
2016-03-30 15:53 ` [PATCH v4 2/5] printk/nmi: use IRQ work only when ready Petr Mladek
2016-04-04 4:56 ` Sergey Senozhatsky
2016-03-30 15:53 ` [PATCH v4 3/5] printk/nmi: warn when some message has been lost in NMI context Petr Mladek
2016-03-30 15:53 ` [PATCH v4 4/5] printk/nmi: increase the size of NMI buffer and make it configurable Petr Mladek
2016-03-30 15:53 ` [PATCH v4 5/5] printk/nmi: flush NMI messages on the system panic Petr Mladek
2016-03-30 16:33 ` kbuild test robot
2016-03-31 12:36 ` Petr Mladek
2016-04-04 4:52 ` Sergey Senozhatsky [this message]
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