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Date: Wed, 18 Jun 2014 19:20:17 -0400
From: Steven Rostedt <rostedt@goodmis.org>
To: Jiri Kosina <jkosina@suse.cz>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
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        Andrew Morton <akpm@linux-foundation.org>,
        Petr Mladek <pmladek@suse.cz>, Kay Sievers <kay@vrfy.org>
Subject: Re: [RFC PATCH 00/11] printk: safe printing in NMI context
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On Wed, 18 Jun 2014 23:12:48 +0200 (CEST)
Jiri Kosina <jkosina@suse.cz> wrote:


> > I believe that this was what Steven was suggesting, though by using
> > tracing.  
> 
> My understanding was that Steven is suggesting using trace_printk() from 
> NMI.

Not quite. I was suggesting using the ftrace ring buffer. It could have
its own way to write the stack and not depend on tracing itself.

-- Steve