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Subject: Re: [PATCH] printk: Add printk_flush() to force buffered text to
 console
From: Joe Perches <joe@perches.com>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Ingo Molnar <mingo@kernel.org>, Fengguang Wu <fengguang.wu@intel.com>,
        LKML <linux-kernel@vger.kernel.org>,
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        "kay.sievers" <kay.sievers@vrfy.org>,
        "Paul E. McKenney" <paulmck@us.ibm.com>, Ingo Molnar <mingo@elte.hu>,
        Andrew Morton <akpm@linux-foundation.org>
Date: Thu, 21 Jun 2012 11:55:02 -0700
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On Thu, 2012-06-21 at 14:49 -0400, Steven Rostedt wrote:
> Actually, I'm starting to lean back to my original patch, and stick a
> pr_flush() in there.

Oh good.  I think that's better than a new printk.

> As it basically just acts like a barrier. "Make
> sure the output I printed actually gets out to the console before I
> continue".

I think that'd be bad and hard to do.

I think you mean simply attempt to deliver it
rather than guarantee it's actually emitted.