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Date:	Thu, 16 Aug 2007 10:25:45 +0200
From:	"Michal Piotrowski" <michal.k.k.piotrowski@...il.com>
To:	"James Corey" <ploversegg@...oo.com>
Cc:	linux-kernel@...r.kernel.org, Netdev <netdev@...r.kernel.org>,
	"Stephen Hemminger" <shemminger@...ux-foundation.org>
Subject: Re: 2.6.23-rc3 and SKY2 driver issue

[Adding Stephen and netdev to CC]

On 15/08/07, James Corey <ploversegg@...oo.com> wrote:
>
> I tried running a D-link gig card on kernel 2.6.21.1
> and it came up fine, but when I did a sftp of
> an linux dvd ISO to it, the interface would lock
> up hard with the error
>
> eth1: hw csum failure.
>
> Call Trace:
>  <IRQ>  [<ffffffff804d3e31>]
> __skb_checksum_complete_head+0x46/0x5f
>  [<ffffffff804d3e56>] __skb_checksum_complete+0xc/0x11
>  [<ffffffff805046c7>] tcp_v4_rcv+0x157/0x810
>  [<ffffffff804d8a6f>] dev_queue_xmit+0x237/0x260
>  [<ffffffff80229990>] find_busiest_group+0x252/0x684
>  [<ffffffff804ead50>] ip_local_deliver+0xca/0x14c
>  [<ffffffff804eb24a>] ip_rcv+0x478/0x4ba
>  [<ffffffff803ec7d3>] sky2_poll+0x6f9/0x9b9
>  [<ffffffff8022bd5d>]
> run_rebalance_domains+0x13e/0x408
>  [<ffffffff804d877a>] net_rx_action+0xa8/0x166
>  [<ffffffff80235d62>] __do_softirq+0x55/0xc3
>  [<ffffffff8020a4ec>] call_softirq+0x1c/0x28
>  [<ffffffff8020b611>] do_softirq+0x2c/0x7d
>  [<ffffffff8020b8cf>] do_IRQ+0x13e/0x15f
>  [<ffffffff802086ce>] mwait_idle+0x0/0x46
>  [<ffffffff80209871>] ret_from_intr+0x0/0xa
>  <EOI>  [<ffffffff80208710>] mwait_idle+0x42/0x46
>  [<ffffffff80208666>] cpu_idle+0x8c/0xaf
>  [<ffffffff8078174e>] start_kernel+0x2ac/0x2b8
>  [<ffffffff80781140>] _sinittext+0x140/0x144
>
>
> So I tried running the latest snapshot 2.6.23-rc3
> and the almost the same thing happens. Only
> difference is that now the entire box locks up.
> The error is almost the same
>
> eth1: hw csum failure.
>
> Call Trace:
>  <IRQ>  [<ffffffff804779b6>]
> __skb_checksum_complete_head+0x43/0x56
>  [<ffffffff804779d5>] __skb_checksum_complete+0xc/0x11
>  [<ffffffff804a989d>] tcp_v4_rcv+0x14e/0x801
>  [<ffffffff8048ff84>] ip_local_deliver+0xca/0x14c
>  [<ffffffff80490472>] ip_rcv+0x46c/0x4ae
>  [<ffffffff880060f9>] :sky2:sky2_poll+0x72b/0x9c7
>  [<ffffffff8047c934>] net_rx_action+0xa8/0x166
>  [<ffffffff80235ced>] __do_softirq+0x55/0xc4
>  [<ffffffff8020c5cc>] call_softirq+0x1c/0x28
>  [<ffffffff8020d6fd>] do_softirq+0x2c/0x7d
>  [<ffffffff8020d9bb>] do_IRQ+0x13e/0x15f
>  [<ffffffff8020a780>] mwait_idle+0x0/0x48
>  [<ffffffff8020b951>] ret_from_intr+0x0/0xa
>  <EOI>  [<ffffffff880063e7>]
> :sky2:sky2_xmit_frame+0x0/0x41d
>  [<ffffffff8020a7c2>] mwait_idle+0x42/0x48
>  [<ffffffff8020a718>] cpu_idle+0xbd/0xe0
>  [<ffffffff80704a5a>] start_kernel+0x2ac/0x2b8
>  [<ffffffff80704140>] _sinittext+0x140/0x144
>
>
> I see that the new kernel includes some sort of
> SKY2 DEBUG stuff. I would be happy to rerun
> the test with that turned on, given some minor
> direction.
>

Regards,
Michal

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