From: Simone Gotti <simone.gotti@email.it>
To: bluez-users@lists.sourceforge.net
Subject: Re: [Bluez-users] crash on remove
References: <20040310182158.GA9279@naginata.ccs.neu.edu> <404F84BC.4020406@xmission.com> <20040310223504.GA3398@omocha.vort.org>
In-Reply-To: <20040310223504.GA3398@omocha.vort.org>
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Sender: bluez-users-admin@lists.sourceforge.net
Errors-To: bluez-users-admin@lists.sourceforge.net
Date: Wed, 10 Mar 2004 23:46:11 +0100

On Wednesday 10 March 2004 23:35, Russell Neches wrote:
> > >Every time I remove a bluetooth USB key from my desktop machine, I
> > >get a hard lock. I'm running kernel 2.6.3 with no patches applied on
> > >both systems.
> >
> > I also see something similar on 2.6.3-mh4. I think the only way I can
> > safely remove a usb adapter is to stop the bluetooth daemons, force
> > remove hci_usb (there always seems to be one reference pinning it down
> > that I can't find), then unplug the adapter.
>
> Do you have to do a force remove, or will it unload cleanly? I have
> forced module unloading turned off in my kernel, which may be the cause
> of my problem...
>
> What do you mean by a "reference"? Does it claim to be in use when you
> you rmmod it?
>
> > I'm using a toshiba m200. The internal adapter is also USB so I think
> > I have to do that before (ACPI-)suspending the laptop. I haven't tried
> > the external since I got internal working. Lately either suspending or
> > resuming crashes my machine so that may not be helping.
>
> Yeah, I get crashes on resume too... Sigh. I never thought I would, but
> I actually miss APM. The lack of APM support on my laptop has been a
> never-ending headache.
>
> Russell

Hi!, I think it's a SCO support problem .
I think that Marcel Holtmann spoked about this a lot of times on the 
mailinglists. You have to disable the SCO support in the hci_usb module to 
avoid this problem. I've read that probably it's a usb uchi isochronous 
problem.

Bye!
-- 
Simone Gotti
<simone.gotti@email.it>


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