linux-kernel - Re: linux-next: Tree for July 17 (debugobjects: bt | btusb

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Message-ID: <20120720094748.GA16598@redhat.com>
Date:	Fri, 20 Jul 2012 11:47:49 +0200
From:	Stanislaw Gruszka <sgruszka@...hat.com>
To:	Sedat Dilek <sedat.dilek@...il.com>
Cc:	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	linux-bluetooth@...r.kernel.org, linux-usb@...r.kernel.org,
	wireless <linux-wireless@...r.kernel.org>
Subject: Re: linux-next: Tree for July 17 (debugobjects: bt | btusb | usb
 related?)

On Wed, Jul 18, 2012 at 08:06:17PM +0200, Sedat Dilek wrote:
> On Tue, Jul 17, 2012 at 7:41 AM, Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> > Hi all,
> >
> > Changes since 20120716:
> >
> 
> Not sure what the root cause of this issue is.
> 
> I see the following call-trace in linux-next (next-20120717).
> 
> [   23.431889] ------------[ cut here ]------------
> [   23.431896] WARNING: at lib/debugobjects.c:261 debug_print_object+0x8e/0xb0()
> [   23.431897] Hardware name: <HIDDEN>
> [   23.431901] ODEBUG: free active (active state 0) object type:
> timer_list hint: delayed_work_timer_fn+0x0/0x40
There are few delayed works on hci_dev structure, it's hard to say which
one is not stopped before kfree.

> # CONFIG_DEBUG_OBJECTS_WORK is not set
If you enable that option, it should show which delayed work is causing trouble.

Stanislaw
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