From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jarek Poplawski <jarkao2@gmail.com>
Subject: Re: panic 2.6.27-rc3-git2, qdisc_dequeue_head
Date: Sat, 16 Aug 2008 17:59:43 +0200
Message-ID: <20080816155943.GD7519@ami.dom.local>
References: <20080815190905.M56388@visp.net.lb> <200808161613.59948.denys@visp.net.lb> <20080816142706.GC7519@ami.dom.local> <200808161828.49068.denys@visp.net.lb>
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Cc: netdev@vger.kernel.org
To: Denys Fedoryshchenko <denys@visp.net.lb>
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On Sat, Aug 16, 2008 at 06:28:48PM +0300, Denys Fedoryshchenko wrote:
> Triggered panic by "batch" shaper "reapply".
> 
> Aug 16 18:26:29 192.168.20.66 [ 2920.823068] BUG: unable to handle kernel 
> Aug 16 18:26:29 192.168.20.66 NULL pointer dereference
> Aug 16 18:26:29 192.168.20.66 at 00000000
> Aug 16 18:26:29 192.168.20.66 [ 2920.823068] IP:
> Aug 16 18:26:29 192.168.20.66 [<c013c083>] find_usage_forwards+0x7e/0x92
...

This seems to be a different bug. Did you run this earlier (before the
last two patches)? I'd prefer to fix this oops from the beginning of
this thread first, so it would be better to test these patches without
changing conditions.

Jarek P.