linux-kernel - Re: 2.6.20-rc2-mm1 -- INFO: possible recursive locking detected

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Message-Id: <1167996872.21293.2.camel@pim.off.vrfy.org>
Date:	Fri, 05 Jan 2007 12:34:32 +0100
From:	Kay Sievers <kay.sievers@...y.org>
To:	Greg KH <gregkh@...e.de>
Cc:	Hugh Dickins <hugh@...itas.com>, Miles Lane <miles.lane@...il.com>,
	Andrew Morton <akpm@...l.org>,
	LKML <linux-kernel@...r.kernel.org>, yi.zhu@...el.com
Subject: Re: 2.6.20-rc2-mm1 -- INFO: possible recursive locking detected

On Thu, 2007-01-04 at 15:57 -0800, Greg KH wrote:
> On Thu, Jan 04, 2007 at 11:50:02PM +0000, Hugh Dickins wrote:
> > On Thu, 4 Jan 2007, Greg KH wrote:
> > > On Sat, Dec 30, 2006 at 02:47:20AM -0800, Miles Lane wrote:
> > > > Sorry Andrew, I am not sure which maintainer to contact about this.  I
> > > > CCed gregkh for sysfs and Yi for ipw2200.  Hopefully this is helpful.
> > > > BTW, I also found that none of my network drivers were recognized by
> > > > hal (lshal did not show their "net" entries) unless I set
> > > > CONFIG_SYSFS_DEPRECATED=y.  I am running Ubuntu development (Feisty
> > > > Fawn), so it seems like I ought to be running pretty current hal
> > > > utilities:   hal-device-manager       0.5.8.1-4ubuntu1.  After
> > > > reenabling CONFIG_SYSFS_DEPRECATED, I am able to use my IPW2200
> > > > driver, in spite of this recursive locking message, so this INFO
> > > > message may not indicate a problem.
> > > 
> > > Does this show up on the 2.6.20-rc3 kernel too?
> > 
> > Yes.  Well, I can't speak for Miles on Ubuntu, but I have ipw2200
> > on openSUSE 10.2 (using ifplugd if that matters), and have to build
> > my 2.6.20-rc3 with CONFIG_SYSFS_DEPRECATED=y in order to get an IP
> > address (no idea whether it's a hald issue in my case).  Likewise
> > needed CONFIG_SYSFS_DEPRECATED=y with 2.6.19-rc-mm on SuSE 10.1.
> 
> I was referring to the locking traceback :)
> 
> But anyway, Kay, I thought that 10.2 would work with
> CONFIG_SYSFS_DEPRECATED=y?

Yes, HAL, udev, NetworkManager, ... from 10.2 works fine here, without
that option set.

Kay

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