linux-kernel - Re: [AX25] inconsistent lock state

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Date:	Fri, 17 Jun 2011 17:26:34 +0200
From:	f6bvp <f6bvp@...e.fr>
To:	Ralf Baechle <ralf@...ux-mips.org>
CC:	Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org,
	Linux Netdev List <netdev@...r.kernel.org>,
	linux-hams@...r.kernel.org
Subject: Re: [AX25] inconsistent lock state

Hi Ralf,

I wanted to check FPAC ROSE application behaviour when Ethernet link was 
shutdown.
To do this I removed the ethernet connector !
I agree this was a very agressive action.

73s de Bernard, f6bvp

Le 17/06/2011 15:51, Ralf Baechle a écrit :
> On Fri, Jun 17, 2011 at 03:36:15PM +0200, Arnd Bergmann wrote:
>
> (Removed Jarek from cc; his email bounces.)
>
>> The message hints that disc_data_lock is aquired with softirqs disabled,
>> but does not itself disable softirqs, which can in rare circumstances
>> lead to a deadlock.
>>
>> Does this fix it?
> If so, drivers/net/hamradio.c, function sp_get() would probably need the
> equivalent fix.  Same for drivers/net/ppp_async.c:ap_get() and sp_get() in
> drivers/net/ppp_synctty.c.
>
>    Ralf

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