linux-kernel - Re: 2.6.18-rc5-mm1 + all hotfixes -- INFO: possible recursive locking detected

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Message-Id: <1157490479.28193.0.camel@laptopd505.fenrus.org>
Date:	Tue, 05 Sep 2006 23:07:59 +0200
From:	Arjan van de Ven <arjan@...radead.org>
To:	Stefan Richter <stefanr@...6.in-berlin.de>
Cc:	Andrew Morton <akpm@...l.org>, Miles Lane <miles.lane@...il.com>,
	linux1394-devel@...ts.sourceforge.net,
	LKML <linux-kernel@...r.kernel.org>,
	Herbert Xu <herbert@...dor.apana.org.au>
Subject: Re: 2.6.18-rc5-mm1 + all hotfixes -- INFO: possible
	recursive	locking detected

On Tue, 2006-09-05 at 21:23 +0200, Stefan Richter wrote:
> Andrew Morton wrote:
> > On Tue, 5 Sep 2006 10:37:51 -0700
> > "Miles Lane" <miles.lane@...il.com> wrote:
> > 
> >> ieee1394: Node changed: 0-01:1023 -> 0-00:1023
> >> ieee1394: Node changed: 0-02:1023 -> 0-01:1023
> >> ieee1394: Node suspended: ID:BUS[0-00:1023]  GUID[0080880002103eae]
> >>
> >> =============================================
> >> [ INFO: possible recursive locking detected ]
> >> 2.6.18-rc5-mm1 #2
> >> ---------------------------------------------
> >> knodemgrd_0/2321 is trying to acquire lock:
> >>  (&s->rwsem){----}, at: [<f8958897>] nodemgr_probe_ne+0x311/0x38d [ieee1394]
> >>
> >> but task is already holding lock:
> >>  (&s->rwsem){----}, at: [<f8959078>] nodemgr_host_thread+0x717/0x883 [ieee1394]
> [...]
> 
> This information confuses me. These places are not supposed to be the
> ones where the locks were actually acquired, are they?

they should be yes
(but inlined functions get the name of the function they are inlined
into)



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