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Date:	Mon, 17 Sep 2007 18:07:15 +0400
From:	"Denis V. Lunev" <den@...ru>
To:	Dhaval Giani <dhaval@...ux.vnet.ibm.com>
CC:	ajwade+00@...rew.wade.mooo.com,
	Satyam Sharma <satyam@...radead.org>, thunder7@...all.nl,
	Jeff Garzik <jeff@...zik.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	netdev <netdev@...r.kernel.org>
Subject: Re: 2.6.23-rc4-mm1 OOPS in forcedeth?

I have also seen this OOPS on e1000 card. So, looks like driver independent.

By the way, this one has been triggered in a semi-stable way by the
'git-pull'

Regards,
	Den

Dhaval Giani wrote:
> On Thu, Sep 13, 2007 at 11:51:33PM -0400, Andrew James Wade wrote:
>> I have an Oops that may be related:
>>
>> BUG: unable to handle kernel NULL pointer dereference at virtual address 00000025
>> printing eip: c037d81b *pde = 00000000
>> Oops: 0000 [#1]
>> last sysfs file: /devices/pci0000:00/0000:00:01.0/0000:01:00.0/class
>>
>> Pid: 0, comm: swapper Not tainted (2.6.23-rc4-mm1-config2 #2)
>> EIP: 0060:[<c037d81b>] EFLAGS: 00010246 CPU: 0
>> EIP is at tcp_rto_min+0xb/0x15
>> EAX: 00000032 EBX: c4c98b68 ECX: fffffffe EDX: 00000000
>> ESI: c4c98b68 EDI: c055f600 EBP: c4432e40 ESP: c0596dec
>>  DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068
>> Process swapper (pid: 0, ti=c0596000 task=c052a340 task.ti=c0568000)
>> Stack: c037d8de c4c98b68 c4c98b68 c037e0ec 00000001 c037f879 c052a8b4 c052a340
>>        00000000 00000001 c25e1e60 00000000 00000000 00000001 8c176265 8c17678a
>>        00000000 00000001 00000001 00000000 8c17678a 86000000 ffffffff 007d8b21
>> Call Trace:
>>  [<c037d8de>] tcp_rtt_estimator+0xb9/0xfe
>>  [<c037e0ec>] tcp_ack_saw_tstamp+0x14/0x43
>>  [<c037f879>] tcp_ack+0x6b8/0x17b8
>>  [<c03833cc>] tcp_rcv_established+0x519/0x5f1
>>  [<c038838d>] tcp_v4_do_rcv+0x28/0x2f8
>>  [<c038a4ce>] tcp_v4_rcv+0x7df/0x83d
>>  [<c0372542>] ip_local_deliver+0xcc/0x148
>>  [<c0372975>] ip_rcv+0x3b7/0x3de
>>  [<c035fa0e>] netif_receive_skb+0x17a/0x1c2
>>  [<c02cc121>] rtl8139_poll+0x2d9/0x425
>>  [<c03616d7>] net_rx_action+0xa8/0xc8
>>  [<c011e8e0>] __do_softirq+0x40/0x90
>>  [<c010635d>] do_softirq+0x4d/0xb6
>>  =======================
>> INFO: lockdep is turned off.
>> Code: 24 8b 82 88 03 00 00 89 82 40 05 00 00 a1 a0 23 53 c0 89 82 44 05 00 00 83 c4 0c 5b 5e 5f 5d c3 8b 90 88 00 00 00 b8 32 00 00 00 <f6> 42 25 20 74 03 8b 42 54 c3 56
>>  85 d2 b9 01 00 00 00 0f 45 ca
>> EIP: [<c037d81b>] tcp_rto_min+0xb/0x15 SS:ESP 0068:c0596dec
>> Kernel panic - not syncing: Fatal exception in interrupt
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