linux-kernel - Re: [PATCH 1/6] pstore: Add console log messages support

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Date:	Thu, 17 May 2012 09:31:31 -0700
From:	Kees Cook <keescook@...omium.org>
To:	Anton Vorontsov <anton.vorontsov@...aro.org>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Colin Cross <ccross@...roid.com>,
	Tony Luck <tony.luck@...el.com>, Arnd Bergmann <arnd@...db.de>,
	John Stultz <john.stultz@...aro.org>,
	Shuah Khan <shuahkhan@...il.com>, arve@...roid.com,
	Rebecca Schultz Zavin <rebecca@...roid.com>,
	Jesper Juhl <jj@...osbits.net>,
	Randy Dunlap <rdunlap@...otime.net>,
	Stephen Boyd <sboyd@...eaurora.org>,
	Thomas Meyer <thomas@...3r.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Marco Stornelli <marco.stornelli@...il.com>,
	WANG Cong <xiyou.wangcong@...il.com>,
	linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org,
	linaro-kernel@...ts.linaro.org, patches@...aro.org,
	kernel-team@...roid.com
Subject: Re: [PATCH 1/6] pstore: Add console log messages support

On Thu, May 17, 2012 at 1:40 AM, Anton Vorontsov
<anton.vorontsov@...aro.org> wrote:
> Pstore doesn't support logging kernel messages in run-time, it only
> dumps dmesg when kernel oopses/panics. This makes pstore useless for
> debugging hangs caused by HW issues or improper use of HW (e.g.
> weird device inserted -> driver tried to write a reserved bits ->
> SoC hanged. In that case we don't get any messages in the pstore.
>
> Therefore, let's add a runtime logging support: PSTORE_TYPE_CONSOLE.
>
> Signed-off-by: Anton Vorontsov <anton.vorontsov@...aro.org>

Acked-by: Kees Cook <keescook@...omium.org>

-- 
Kees Cook
Chrome OS Security
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