linux-kernel - Re: [Linux-v4.6-rc1] ext4: WARNING: CPU: 2 PID: 2692 at kernel/locking/lockdep.c:2017 __lock

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Message-ID: <20160328063303.GF6344@twins.programming.kicks-ass.net>
Date:	Mon, 28 Mar 2016 08:33:03 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Boqun Feng <boqun.feng@...il.com>
Cc:	Sedat Dilek <sedat.dilek@...il.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ingo Molnar <mingo@...nel.org>, Theodore Ts'o <tytso@....edu>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [Linux-v4.6-rc1] ext4: WARNING: CPU: 2 PID: 2692 at
 kernel/locking/lockdep.c:2017 __lock_acquire+0x180e/0x2260

On Mon, Mar 28, 2016 at 09:05:09AM +0800, Boqun Feng wrote:
> On Sun, Mar 27, 2016 at 10:59:00PM +0200, Sedat Dilek wrote:
> > [1] says...
> > 
> > "Also tested with lockdep's test suite after applying the patch:
> > 
> > [ 0.000000] Good, all 253 testcases passed! |"
> > 
> > Where can I find this "lockdep's test suite"?

lib/locking-selftest*

> I think that means the self test suite enabled by
> CONFIG_DEBUG_LOCKING_API_SELFTESTS

Correct.