linux-kernel - Re: LOCKDEP: 3.9-rc1: mount.nfs/4272 still has locks held!

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Message-ID: <20130306011623.GG1227@htj.dyndns.org>
Date:	Tue, 5 Mar 2013 17:16:23 -0800
From:	Tejun Heo <tj@...nel.org>
To:	"J. Bruce Fields" <bfields@...ldses.org>
Cc:	Mandeep Singh Baines <msb@...omium.org>,
	Jeff Layton <jlayton@...hat.com>,
	"Myklebust, Trond" <Trond.Myklebust@...app.com>,
	Oleg Nesterov <oleg@...hat.com>,
	Ming Lei <ming.lei@...onical.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"linux-nfs@...r.kernel.org" <linux-nfs@...r.kernel.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...hat.com>
Subject: Re: LOCKDEP: 3.9-rc1: mount.nfs/4272 still has locks held!

On Tue, Mar 05, 2013 at 08:05:07PM -0500, J. Bruce Fields wrote:
> If it's really just a 2-line patch to try_to_freeze(), could it just be
> carried out-of-tree by people that are specifically working on tracking
> down these problems?
> 
> But I don't have strong feelings about it--as long as it doesn't result
> in the same known issues getting reported again and again....

Agreed, I don't think a Kconfig option is justified for this.  If this
is really important, annotate broken paths so that it doesn't trigger
spuriously; otherwise, please just remove it.

Thanks.

-- 
tejun
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