linux-kernel - Re: lockdep: Invalid subclass: 31, related to mousedev

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Message-Id: <20101026150028.039a0cb5.randy.dunlap@oracle.com>
Date:	Tue, 26 Oct 2010 15:00:28 -0700
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	Ben Greear <greearb@...delatech.com>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: lockdep:  Invalid subclass: 31, related to mousedev_create

On Tue, 26 Oct 2010 14:48:15 -0700 Ben Greear wrote:

> This is coming out of today's wireless-testing tree:
> 
> BUG: looking up invalid subclass: 31
> turning off the locking correctness validator.
> Pid: 1, comm: swapper Not tainted 2.6.36-wl+ #33
> Call Trace:
>   [<c076af55>] ? printk+0xf/0x12
>   [<c045535f>] look_up_lock_class+0x2d/0x9e
>   [<c0455bb7>] register_lock_class+0x17/0x2ac
>   [<c0455ed2>] ? lockdep_init_map+0x86/0xf1
>   [<c0454fbe>] ? debug_mutex_init+0x28/0x33
>   [<c0455f2c>] lockdep_init_map+0xe0/0xf1
>   [<c0686d0d>] mousedev_create+0x8d/0x196
>   [<c09b4215>] mousedev_init+0x15/0x51
>   [<c040115e>] do_one_initcall+0x71/0x121
>   [<c09b4200>] ? mousedev_init+0x0/0x51
>   [<c098838c>] kernel_init+0x126/0x1a7
>   [<c0988266>] ? kernel_init+0x0/0x1a7
>   [<c0403586>] kernel_thread_helper+0x6/0x1a
> mice: PS/2 mouse device common for all mice


Please see this reply:
http://lkml.org/lkml/2010/10/25/48

---
~Randy
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