linux-kernel - Re: BUG: unable to handle kernel paging request at 00010016

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Date:	Tue, 21 Aug 2012 01:05:20 +0100
From:	Dave Haywood <tla@....selfip.net>
To:	Artem Savkov <artem.savkov@...il.com>
CC:	Shaun Ruffell <sruffell@...ium.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	linux-net@...r.kernel.org
Subject: Re: BUG: unable to handle kernel paging request at 00010016

On 19/08/2012 09:21, Artem Savkov wrote:
> On Sat, Aug 18, 2012 at 11:25:43PM -0500, Shaun Ruffell wrote:
>> Adding linux-net to the CC list.
>>
>> On Fri, Aug 17, 2012 at 11:57:56PM +0100, Dave Haywood wrote:
>>> [1.] One line summary of the problem:
>>> BUG: unable to handle kernel paging request at 00010016
>>>
>>> 	System boots then crashes a 5-10 or so seconds after getting to the login prompt
>>> 	Booting without the network cable attached prevents the crash (no evidence beyond 10 minutes after boot)
>>>
>>>    Diagnostics:
>>> 	Captured the boot and managed a login + dmesg before the crash
>>> 	Some of the log looks corrupted. Probably my crappy usb dongle serial flow control but left it in anyway
>> [snip]
>>
>> Just a note that I see this as well. It happens reliably for me after trying to
>> login to the machine via ssh.
>>
>> Here is the back trace I collected on the serial port.
> There is a patch posted on netdev that fixes this for me:
> http://patchwork.ozlabs.org/patch/178525/
>
Bisected to:

5d299f3d3c8a2fbc732b1bf03af36333ccec3130 is the first bad commit

commit 5d299f3d3c8a2fbc732b1bf03af36333ccec3130

Author: Eric Dumazet <edumazet@...gle.com>

Date:   Mon Aug 6 05:09:33 2012 +0000

     net: ipv6: fix TCP early demux

     IPv6 needs a cookie in dst_check() call.

     We need to add rx_dst_cookie and provide a family independent

     sk_rx_dst_set(sk, skb) method to properly support IPv6 TCP early demux.

     Signed-off-by: Eric Dumazet <edumazet@...gle.com>

     Signed-off-by: David S. Miller <davem@...emloft.net>

:040000 040000 96ade77f304a89c1886fbaa125b03d1f5699e418 485a021044b8f52ae8562e4e90d8f6536863f5e7 M      include

:040000 040000 1ebd6792af2014ad11979216b9a56504a28d5782 7a53fc9e7fb219c4cacb1bbb3b6867f30790dfd1 M      net




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