linux-kernel - Re: [PATCH v4] lib/spinlock_debug.c: prevent a recursive cycle in the debug code

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Message-ID: <20160129081911.GG31266@X58A-UD3R>
Date:	Fri, 29 Jan 2016 17:19:11 +0900
From:	Byungchul Park <byungchul.park@....com>
To:	Peter Hurley <peter@...leysoftware.com>
Cc:	akpm@...ux-foundation.org, mingo@...nel.org,
	linux-kernel@...r.kernel.org, akinobu.mita@...il.com, jack@...e.cz,
	torvalds@...ux-foundation.org
Subject: Re: [PATCH v4] lib/spinlock_debug.c: prevent a recursive cycle in
 the debug code

On Thu, Jan 28, 2016 at 04:15:02PM +0900, Byungchul Park wrote:
> On Wed, Jan 27, 2016 at 02:49:35PM -0800, Peter Hurley wrote:
> > And we already have lockdep turned off to avoid triggering a recursive
> > lockdep report (which I think is a mistake).
> 
> Yes, we already have a way to turn off the lock debug so that we can
> avoid it. So I used it in v4.
> 
> thanks,
> byungchul
> 
> > 
> > I think we should be working toward properly handling recursion
> > in printk().

And it would be better once it is done to handle the recursion properly.
But I think, not now..

> > 
> > Regards,
> > Peter Hurley