linux-kernel - Re: [RFC][PATCH 0/5 v2] x86/nmi: Print all cpu stacks from NMI safely

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Message-ID: <20140910101259.GA27702@quack.suse.cz>
Date:	Wed, 10 Sep 2014 12:12:59 +0200
From:	Jan Kara <jack@...e.cz>
To:	Jiri Kosina <jkosina@...e.cz>
Cc:	Steven Rostedt <rostedt@...dmis.org>, linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ingo Molnar <mingo@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Michal Hocko <mhocko@...e.cz>, Jan Kara <jack@...e.cz>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Dave Anderson <anderson@...hat.com>,
	Petr Mladek <pmladek@...e.cz>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Konstantin Khlebnikov <koct9i@...il.com>
Subject: Re: [RFC][PATCH 0/5 v2] x86/nmi: Print all cpu stacks from NMI safely

On Wed 10-09-14 10:08:02, Jiri Kosina wrote:
> On Fri, 8 Aug 2014, Steven Rostedt wrote:
> 
> > > > This is my proposal to print the NMI stack traces from an RCU stall safely.
> > > > Here's the gist of it.
> > > 
> > > Steven, what's your plan with this patchset please? 
> > 
> > Has there been consensus on this approach?
> 
> From what I heard, the kernel summit workshop seems to have reached that 
> conclusion; I was unfortunately unable to attend it due to another 
> discussion I was interested in happening at the same time -- Jan Kara was 
> there, so I believe he can provide all the details if necessary.
  Yes, we briefly talked about printk from NMI and noone was objecting to
Steven's solution.

								Honza
-- 
Jan Kara <jack@...e.cz>
SUSE Labs, CR
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