Date: Wed, 5 Sep 2007 08:24:52 -0700
From: Andrew Morton <akpm@linux-foundation.org>
To: gshan <gshan@alcatel-lucent.com>
Cc: linux-kernel@vger.kernel.org, Dale Farnsworth <dale@farnsworth.org>,
       netdev@vger.kernel.org
Subject: Re: kernel crashes inside MV643xx driver
Message-Id: <20070905082452.4a20387b.akpm@linux-foundation.org>
In-Reply-To: <46C93701.7050509@alcatel-lucent.com>
References: <46C93701.7050509@alcatel-lucent.com>
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> On Mon, 20 Aug 2007 14:38:57 +0800 gshan <gshan@alcatel-lucent.com> wrote:
> Hi All,
> 
> After I started the NFS server, it crashed:
> 
> <3>Badness in local_bh_enable at 
> /home/cli4/sandbox/main/TelicaRoot/components/mvlinux/cge/devkit/lsp/7xx/linux/kernel/softirq.c:195
> Badness in local_bh_enable at 
> /home/cli4/sandbox/main/TelicaRoot/components/mvlinux/cge/devkit/lsp/7xx/linux/kernel/softirq.c:195
> Call trace:
>  [c0005340] check_bug_trap+0xbc/0x11c
>  [c0005604] ProgramCheckException+0x264/0x2bc
>  [c0004ac4] ret_from_except_full+0x0/0x4c
>  [c0022ae4] local_bh_enable+0x18/0x80
>  [c024648c] skb_copy_bits+0x168/0x3b8
>  [c024db44] __skb_linearize+0x90/0x150
>  [c020e8a4] mv643xx_eth_start_xmit+0x4c0/0x5bc
>  [c025c934] qdisc_restart+0xac/0x2bc
>  [c024de9c] dev_queue_xmit+0x298/0x34c
>  [c0269814] ip_finish_output+0x140/0x2b8
>  [c026a3ac] ip_fragment+0x3cc/0x6e0
>  [c026bac8] ip_push_pending_frames+0x3dc/0x46c
>  [c0289ec4] udp_push_pending_frames+0x10c/0x1cc
>  [c028a7c4] udp_sendpage+0x104/0x188
>  [c0292fc8] inet_sendpage+0x90/0xb8
> 
> I searched the webs and found the similar problems:
> http://www.mail-archive.com/netdev@vger.kernel.org/msg05199.html
> http://oss.sgi.com/archives/netdev/2005-09/msg00025.html
> 
> Who knew there are fixes for the problem?
> 

Well that got a tremendous response, didn't it?

What do you mean by "crashed"?  The above is a warning and the system
should have survived.

Which kernel version is being used?


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