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Date: Wed, 1 Feb 2017 11:41:50 -0500
From: Steven Rostedt <rostedt@goodmis.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Petr Mladek <pmladek@suse.com>, Jan Kara <jack@suse.cz>,
        Ross Zwisler <zwisler@gmail.com>,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
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        Linus Torvalds <torvalds@linux-foundation.org>,
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        Peter Hurley <peter@hurleysoftware.com>,
        LKML <linux-kernel@vger.kernel.org>,
        Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Subject: Re: [PATCHv7 6/8] printk: use printk_safe buffers in printk
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On Wed, 1 Feb 2017 17:15:41 +0100
Peter Zijlstra <peterz@infradead.org> wrote:
 
> So my kernel doesn't yet have that abomination; that redirects it to a
> buffer for later printing right? I hope that buffer is big enough to
> hold a full WARN splat and the machine lives long enough to make it to
> printing that crap.


By default the buffer is 8K (minus 3 * sizeof(long)). But there's a
config option to grow it up to 128K if you like.

-- Steve