linux-kernel - Re: linux-next BUG: held lock freed!

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Date:	Mon, 2 Jul 2012 13:22:41 +0800
From:	Fengguang Wu <fengguang.wu@...el.com>
To:	Feng Tang <feng.tang@...el.com>
Cc:	Christoph Lameter <cl@...ux.com>,
	Trond Myklebust <Trond.Myklebust@...app.com>,
	linux-nfs@...r.kernel.org, linux-kernel@...r.kernel.org,
	netdev <netdev@...r.kernel.org>, penberg@...nel.org,
	linux-mm@...ck.org, Stephen Rothwell <sfr@...b.auug.org.au>,
	bfields@...ldses.org
Subject: Re: linux-next BUG: held lock freed!

> --- a/mm/slab.c
> +++ b/mm/slab.c
> @@ -3890,7 +3890,7 @@ void kmem_cache_free(struct kmem_cache *cachep, void *objp)
>         unsigned long flags;
>  
>         local_irq_save(flags);
> -       debug_check_no_locks_freed(objp, cachep->size);
> +       debug_check_no_locks_freed(objp, cachep->object_size);
>         if (!(cachep->flags & SLAB_DEBUG_OBJECTS))
>                 debug_check_no_obj_freed(objp, cachep->object_size);
>         __cache_free(cachep, objp, __builtin_return_address(0));

It works! No single error after a dozen reboots :-)

Tested-by: Fengguang Wu <wfg@...ux.intel.com>

Thanks,
Fengguang
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