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Date: Tue, 13 Nov 2012 15:58:34 +0200
From: Denys Fedoryshchenko <denys@visp.net.lb>
To: <jeffrey.t.kirsher@intel.com>, <jesse.brandeburg@intel.com>,
        <bruce.w.allan@intel.com>, <carolyn.wyborny@intel.com>,
        <donald.c.skidmore@intel.com>, <gregory.v.rose@intel.com>,
        <peter.p.waskiewicz.jr@intel.com>, <alexander.h.duyck@intel.com>,
        <john.ronciak@intel.com>, <e1000-devel@lists.sourceforge.net>,
        <netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: e1000e on DH55HC stalling and kernel panic in 3.6.6
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Hi

I just tried to run latest kernel on my DH55HC motherboard latest 
kernel 3.6.6 and got various network problems, such as network traffic 
are stopping, and sometimes i am getting kernel panic.
When traffic are stopping, ethtool -r eth0 sometimes helps.
When i do ethtool -G eth0 rx NNN , sometimes it will give kernel panic, 
but it is hard to reproduce.

I tried to capture panic on pictures, so will try to decode on what i 
got photo, it is a nightmare, but sadly i dont have serial in hands to 
get data over it.

skbuff: skb_over_panic: text:f86fc769 len:25807 put:25807 head:c1da1800 
data:c1da1840 tail:0xc1da7d0f end:c1da1f40 dev:eth0
kernel BUG at net/core/skbuff.c:127
opcode: 0000 [#1] SMP
Pid: 0 comm: swapper/6 Not tained 3.6.6-build-0063 #23
EIP: 0060:[<c02e7980>] EFLAGS: 00010296 CPU:6
EIP is at skb_put+0x83/0x8e

There is registers and stack, let me know if you need specific fields

Call trace:
f86fc769 ? e1000_clean_rx_irq+0x1e1/0x2af [e1000e]
f86fc769 e1000_clean_rx_irq+0x1e1/0x2af [e1000e]
f86fcc73 e1000e_poll+0x6a/0x209 [e1000e]
c02f1630 net_rx_action+0x90/0x15d
c01302d5 __do_softirq+0x8a/-x13b
c013024b ? local_bh_enable+0xd/0xd
<IRQ>
c0130504 irq_exit+0x41/0x91
c0102c37 do_IRQ+0x79/0x8d

There is also more data, let me know if you need it.


---
Denys Fedoryshchenko, Network Engineer, Virtual ISP S.A.L.

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