linux-kernel - Re: Kernel oops with bluetooth usb dongle

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Date:	Tue, 26 Feb 2008 00:03:28 +0000
From:	kelk1@...cast.net (Quel Qun)
To:	Thomas Gleixner <tglx@...utronix.de>,
	David Woodhouse <dwmw2@...radead.org>
Cc:	Dave Young <hidave.darkstar@...il.com>,
	Marcel Holtmann <marcel@...tmann.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Jiri Kosina <jkosina@...e.cz>, Ingo Molnar <mingo@...e.hu>
Subject: Re: Kernel oops with bluetooth usb dongle

 -------------- Original message ----------------------
From: Thomas Gleixner <tglx@...utronix.de>
> On Fri, 22 Feb 2008, David Woodhouse wrote:
>  
> > On Fri, 2008-02-22 at 08:23 +0100, Thomas Gleixner wrote:
> > > 
> > > +       del_timer(&conn->info_timer);
> > > +
> > >         hcon->l2cap_data = NULL;
> > >         kfree(conn);
> > 
> > Shouldn't that be del_timer_sync() ?
> 
> Hmm, probably yes.
> 
Hi,

Great news: only adding adding del_timer_sync() to 2.6.25-rc3 does prevent the crash.

Bad news: I still cannot use the device.

hcitool inq, hcitool scan, hcitool name <btaddr> and hcitool info <btaddr> 
commands work.

hcitool cc <btaddr>, sdptool <btaddr>, rfcomm connect command fail, most of them 
with a 'Connection reset by peer' error.

# rpm -q bluez-utils
bluez-utils-3.27-1mdv2008.1

Thank you,
--
Eric
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