I'm experiencing this problem as well, machine is running xen, on 3.0.0-3

everything worked fine (with xen as well).

Best Regards

Krzysztof Cybulski

-- Package-specific info:

** Version:

Linux version 3.1.0-1-amd64 (Debian 3.1.1-1) (ben_at_decadent.org.uk) (gcc

version 4.6.2 (Debian 4.6.2-4) ) #1 SMP Mon Nov 14 08:02:25 UTC 2011

** Command line:

placeholder root=UUID=28ddd811-92e6-41c7-9711-9f951b73bce2 ro quiet

** Tainted: PO (4097)

 * Proprietary module has been loaded.

 * Out-of-tree module has been loaded.

** Kernel log:

[36080.362239]  [<ffffffff81270ab0>] ? netif_receive_skb+0x63/0x69

[36080.362243]  [<ffffffff81270f16>] ? napi_gro_receive+0x1d/0x2b

[36080.362247]  [<ffffffff81270b2c>] ? napi_skb_finish+0x1c/0x31

[36080.362254]  [<ffffffffa004cd97>] ? sky2_poll+0x782/0x9a0 [sky2]

[36080.362259]  [<ffffffff81271034>] ? net_rx_action+0xa1/0x1af

[36080.362263]  [<ffffffff8104ad04>] ? __do_softirq+0xb9/0x177

[36080.362267]  [<ffffffff8109057c>] ? handle_edge_irq+0xa2/0xc9

[36080.362271]  [<ffffffff81202930>] ? __xen_evtchn_do_upcall+0x1b5/0x1f2

[36080.362276]  [<ffffffff8133452c>] ? call_softirq+0x1c/0x30

[36080.362280]  [<ffffffff8100f845>] ? do_softirq+0x3c/0x7b

[36080.362284]  [<ffffffff8104af6c>] ? irq_exit+0x3c/0x9a

[36080.362289]  [<ffffffff81203e04>] ? xen_evtchn_do_upcall+0x27/0x32

[36080.362293]  [<ffffffff8133457e>] ? xen_do_hypervisor_callback+0x1e/0x30

[36080.362295]  <EOI>

[36080.362304] eth0: hw csum failure.

[36080.362307] Pid: 24573, comm: apt-get Tainted: P           O

3.1.0-1-amd64 #1

[36080.362310] Call Trace:

[36080.362311]  <IRQ>  [<ffffffff8126f6ff>] ? netdev_rx_csum_fault+0x29/0x31

[36080.362319]  [<ffffffff81269f5a>] ?

__skb_checksum_complete_head+0x41/0x53

[36080.362326]  [<ffffffffa0e3cd0d>] ? br_multicast_rcv+0x7e8/0xca1 [bridge]

[36080.362333]  [<ffffffffa0e3633a>] ? NF_HOOK.constprop.4+0x56/0x56

[bridge]

[36080.362337]  [<ffffffff81291cf6>] ? nf_hook_slow+0x73/0x111

[36080.362343]  [<ffffffffa0e3633a>] ? NF_HOOK.constprop.4+0x56/0x56

[bridge]

[36080.362350]  [<ffffffffa0e3a2aa>] ? br_nf_forward_finish+0x95/0x95

[bridge]

[36080.362357]  [<ffffffffa0e363ca>] ? br_handle_frame_finish+0x90/0x20f

[bridge]

[36080.362363]  [<ffffffffa0e3a333>] ?

br_nf_pre_routing_finish_ipv6+0x89/0x92 [bridge]

[36080.362370]  [<ffffffffa0e39e7b>] ? setup_pre_routing+0x38/0x5d [bridge]

[36080.362376]  [<ffffffffa0e3ae65>] ? br_nf_pre_routing+0x3e8/0x3f5

[bridge]

[36080.362450]  [<ffffffffa02dcabb>] ? _nv014063rm+0x252/0x47c [nvidia]

[36080.362455]  [<ffffffff81291c4d>] ? nf_iterate+0x41/0x77

[36080.362526]  [<ffffffffa02d3e48>] ? _nv014248rm+0x2d/0x33 [nvidia]

[36080.362533]  [<ffffffffa0e3633a>] ? NF_HOOK.constprop.4+0x56/0x56

[bridge]

[36080.362539]  [<ffffffffa0e3633a>] ? NF_HOOK.constprop.4+0x56/0x56

[bridge]

[36080.362544]  [<ffffffff81291cf6>] ? nf_hook_slow+0x73/0x111

[36080.362550]  [<ffffffffa0e3633a>] ? NF_HOOK.constprop.4+0x56/0x56

[bridge]

[36080.362555]  [<ffffffff8100666c>] ? xen_force_evtchn_callback+0x9/0xa

[36080.362561]  [<ffffffffa0e3633a>] ? NF_HOOK.constprop.4+0x56/0x56

[bridge]

[36080.362567]  [<ffffffffa0e36320>] ? NF_HOOK.constprop.4+0x3c/0x56

[bridge]

[36080.362574]  [<ffffffffa0e366ed>] ? br_handle_frame+0x1a4/0x1bb [bridge]

[36080.362580]  [<ffffffffa0e36549>] ? br_handle_frame_finish+0x20f/0x20f

[bridge]

[36080.362584]  [<ffffffff8126f132>] ? __netif_receive_skb+0x2d6/0x415

[36080.362589]  [<ffffffff81270ab0>] ? netif_receive_skb+0x63/0x69

[36080.362593]  [<ffffffff81270f16>] ? napi_gro_receive+0x1d/0x2b

[36080.362597]  [<ffffffff81270b2c>] ? napi_skb_finish+0x1c/0x31

[36080.362604]  [<ffffffffa004cd97>] ? sky2_poll+0x782/0x9a0 [sky2]

[36080.362608]  [<ffffffff81271034>] ? net_rx_action+0xa1/0x1af

[36080.362613]  [<ffffffff8104ad04>] ? __do_softirq+0xb9/0x177

[36080.362617]  [<ffffffff8109057c>] ? handle_edge_irq+0xa2/0xc9

[36080.362621]  [<ffffffff81202930>] ? __xen_evtchn_do_upcall+0x1b5/0x1f2

[36080.362625]  [<ffffffff8133452c>] ? call_softirq+0x1c/0x30

[36080.362630]  [<ffffffff8100f845>] ? do_softirq+0x3c/0x7b

[36080.362634]  [<ffffffff8104af6c>] ? irq_exit+0x3c/0x9a

[36080.362638]  [<ffffffff81203e04>] ? xen_evtchn_do_upcall+0x27/0x32

[36080.362642]  [<ffffffff8133457e>] ? xen_do_hypervisor_callback+0x1e/0x30

[36080.362645]  <EOI>

[36080.485954] eth0: hw csum failure.

[36080.485961] Pid: 24573, comm: apt-get Tainted: P           O

3.1.0-1-amd64 #1

[36080.485964] Call Trace:

[36080.485967]  <IRQ>  [<ffffffff8126f6ff>] ? netdev_rx_csum_fault+0x29/0x31

[36080.485982]  [<ffffffff81269f5a>] ?

__skb_checksum_complete_head+0x41/0x53

[36080.485995]  [<ffffffffa0e3cd0d>] ? br_multicast_rcv+0x7e8/0xca1 [bridge]

[36080.486002]  [<ffffffffa0e3633a>] ? NF_HOOK.constprop.4+0x56/0x56

[bridge]

[36080.486007]  [<ffffffff81291cf6>] ? nf_hook_slow+0x73/0x111

[36080.486013]  [<ffffffffa0e3633a>] ? NF_HOOK.constprop.4+0x56/0x56

[bridge]

[36080.486020]  [<ffffffffa0e3a2aa>] ? br_nf_forward_finish+0x95/0x95

[bridge]

[36080.486027]  [<ffffffffa0e363ca>] ? br_handle_frame_finish+0x90/0x20f

[bridge]

[36080.486034]  [<ffffffffa0e3a333>] ?

br_nf_pre_routing_finish_ipv6+0x89/0x92 [bridge]

[36080.486040]  [<ffffffffa0e39e7b>] ? setup_pre_routing+0x38/0x5d [bridge]

[36080.486047]  [<ffffffffa0e3ae65>] ? br_nf_pre_routing+0x3e8/0x3f5

[bridge]

[36080.486051]  [<ffffffff81291c4d>] ? nf_iterate+0x41/0x77

[36080.486058]  [<ffffffffa0e3633a>] ? NF_HOOK.constprop.4+0x56/0x56

[bridge]

[36080.486064]  [<ffffffffa0e3633a>] ? NF_HOOK.constprop.4+0x56/0x56

[bridge]

[36080.486068]  [<ffffffff81291cf6>] ? nf_hook_slow+0x73/0x111

[36080.486074]  [<ffffffffa0e3633a>] ? NF_HOOK.constprop.4+0x56/0x56

[bridge]

[36080.486081]  [<ffffffff8100666c>] ? xen_force_evtchn_callback+0x9/0xa

[36080.486087]  [<ffffffffa0e3633a>] ? NF_HOOK.constprop.4+0x56/0x56

[bridge]

[36080.486093]  [<ffffffffa0e36320>] ? NF_HOOK.constprop.4+0x3c/0x56

[bridge]

[36080.486100]  [<ffffffffa0e366ed>] ? br_handle_frame+0x1a4/0x1bb [bridge]

[36080.486106]  [<ffffffffa0e36549>] ? br_handle_frame_finish+0x20f/0x20f

[bridge]

[36080.486110]  [<ffffffff8126f132>] ? __netif_receive_skb+0x2d6/0x415

[36080.486115]  [<ffffffff81270ab0>] ? netif_receive_skb+0x63/0x69

[36080.486119]  [<ffffffff81270f16>] ? napi_gro_receive+0x1d/0x2b

[36080.486123]  [<ffffffff81270b2c>] ? napi_skb_finish+0x1c/0x31

[36080.486140]  [<ffffffffa004cd97>] ? sky2_poll+0x782/0x9a0 [sky2]

[36080.486144]  [<ffffffff81271034>] ? net_rx_action+0xa1/0x1af

[36080.486150]  [<ffffffff8104ad04>] ? __do_softirq+0xb9/0x177

[36080.486155]  [<ffffffff8109057c>] ? handle_edge_irq+0xa2/0xc9

[36080.486160]  [<ffffffff81202930>] ? __xen_evtchn_do_upcall+0x1b5/0x1f2

[36080.486167]  [<ffffffff8133452c>] ? call_softirq+0x1c/0x30

[36080.486172]  [<ffffffff8100f845>] ? do_softirq+0x3c/0x7b

[36080.486176]  [<ffffffff8104af6c>] ? irq_exit+0x3c/0x9a

[36080.486180]  [<ffffffff81203e04>] ? xen_evtchn_do_upcall+0x27/0x32

[36080.486185]  [<ffffffff8133457e>] ? xen_do_hypervisor_callback+0x1e/0x30

[3608