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

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Message-ID: <CA+icZUX5+3b1Hkqv1wT70iR=FuYBnf6NSn71PJ7Fjueb1HrOfw@mail.gmail.com>
Date:	Fri, 20 Jul 2012 11:53:20 +0200
From:	Sedat Dilek <sedat.dilek@...il.com>
To:	Stanislaw Gruszka <sgruszka@...hat.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 Fri, Jul 20, 2012 at 11:47 AM, Stanislaw Gruszka <sgruszka@...hat.com> wrote:
> 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.
>

OK, thanks for the explanations & hints!
I will activate that kconfig-option.

FYI: With yesterday's linux-next (next-20120719) I didn't trap into
this regression (same kernel-config + several bootups).

- Sedat -

> Stanislaw
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