linux-kernel - Re: [patch 1/3] rtmutex: Add missing deadlock check

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Message-ID: <20140513232710.GA18164@linux.vnet.ibm.com>
Date:	Tue, 13 May 2014 16:27:11 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Dave Jones <davej@...hat.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Darren Hart <darren@...art.com>,
	Davidlohr Bueso <davidlohr@...com>,
	Ingo Molnar <mingo@...nel.org>,
	Clark Williams <williams@...hat.com>,
	Roland McGrath <roland@...k.frob.com>,
	Carlos ODonell <carlos@...hat.com>,
	Jakub Jelinek <jakub@...hat.com>,
	Michael Kerrisk <mtk.manpages@...il.com>,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Subject: Re: [patch 1/3] rtmutex: Add missing deadlock check

On Tue, May 13, 2014 at 06:44:30PM -0400, Steven Rostedt wrote:
> On Tue, 13 May 2014 15:00:09 -0700
> "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com> wrote:
> 
> 
> > Good points -- I was indeed thinking about stress testing instead of
> > algorithmic testing.
> 
> But doesn't lockdep use algorithmic tests too?

I suppose you could argue that there is no such thing as non-algorithmic
testing, given that all test code uses an algorithm of some sort.  Perhaps
with the exception of letting your pet walk across the keyboard.  ;-)

Perhaps I should have instead said that I was thinking about random
testing instead of formal testing?

							Thanx, Paul

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