Message-ID: <501B8792.6040605@univ-nantes.fr>
Date:	Fri, 03 Aug 2012 10:10:58 +0200
From:	Yann Dupont <Yann.Dupont@...v-nantes.fr>
To:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: skb_warn_bad_offload with kernel 3.5 (maybe gso/bridge related ?)

Hello everybody,

I have a machine using ceph rbd volume, as a client (rbd module) to 
backup data.

I was running kernel 3.2.22 ok. Tried 3.5.0 because some rbd fixes went in.

Now, shortly after the start, my logs are filled by that :

Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.780860] 
WARNING: at net/core/dev.c:1888 skb_warn_bad_offload+0xb6/0xc1()
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.780920] 
Hardware name: PowerEdge M605
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.780990] : 
caps=(0x0000000000005000, 0x0000000000000000) len=7292 data_len=5792 
gso_size=1448 gso_type=1 ip_summed=1
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.781071] 
Modules linked in: rbd libceph ipt_MASQUERADE iptable_nat nf_nat 
ipt_REJECT veth fuse xt_physdev xt_iprange xt_multiport ip6table_filter 
ip6_tables xt_LOG xt_limit xt_tcpudp xt_state iptable_filter ip_tables 
x_tables nf_conntrack_tftp nf_conntrack_ftp nf_conntrack_ipv4 
nf_defrag_ipv4 8021q bridge stp llc ext2 mbcache dm_round_robin 
dm_multipath scsi_dh nf_conntrack_ipv6 nf_conntrack nf_defrag_ipv6 ipv6 
powernow_k8 freq_table mperf kvm_amd snd_pcm kvm snd_timer snd soundcore 
snd_page_alloc tpm_tis tpm tpm_bios pcspkr evdev psmouse microcode 
joydev dcdbas shpchp i2c_nforce2 pci_hotplug serio_raw processor 
i2c_core hid_generic thermal_sys hed button xfs exportfs dm_mod ses 
enclosure usbhid hid sg sr_mod sd_mod cdrom usb_storage lpfc 
scsi_transport_fc scsi_tgt ohci_hcd bnx2x mptsas mptscsih bnx2 mptbase 
scsi_transport_sas crc32c scsi_mod libcrc32c mdio ehci_hcd [last 
unloaded: scsi_wait_scan]
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.785995] 
Pid: 0, comm: swapper/0 Not tainted 3.5.0-dsiun-120521 #5
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.786055] 
Call Trace:
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.786108]  
<IRQ>  [<ffffffff813bde00>] ? skb_warn_bad_offload+0x6f/0xc1
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.786209]  
[<ffffffff8103a109>] ? warn_slowpath_common+0x79/0xc0
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.786269]  
[<ffffffff8103a205>] ? warn_slowpath_fmt+0x45/0x50
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.786330]  
[<ffffffff81068647>] ? get_nohz_timer_target+0x57/0xd0
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.786390]  
[<ffffffff813bde47>] ? skb_warn_bad_offload+0xb6/0xc1
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.786452]  
[<ffffffff813110e7>] ? skb_gso_segment+0x207/0x280
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.786512]  
[<ffffffff81313f26>] ? dev_hard_start_xmit+0x1f6/0x620
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.786574]  
[<ffffffff8132f17d>] ? sch_direct_xmit+0xfd/0x1d0
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.786633]  
[<ffffffff813147a4>] ? dev_queue_xmit+0x454/0x610
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.786697]  
[<ffffffffa06f3c42>] ? br_dev_queue_push_xmit+0x72/0xc0 [bridge]
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.786762]  
[<ffffffffa06fa673>] ? br_nf_post_routing+0x223/0x340 [bridge]
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.786825]  
[<ffffffff8133c0c4>] ? nf_iterate+0x84/0xa0
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.786885]  
[<ffffffffa06f3bd0>] ? deliver_clone+0x60/0x60 [bridge]
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.786945]  
[<ffffffff8133c14e>] ? nf_hook_slow+0x6e/0x130
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.787005]  
[<ffffffffa06f3bd0>] ? deliver_clone+0x60/0x60 [bridge]
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.787067]  
[<ffffffffa06f3f00>] ? br_multicast_flood+0x170/0x170 [bridge]
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.787130]  
[<ffffffffa06f3f42>] ? br_forward_finish+0x42/0x50 [bridge]
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.787193]  
[<ffffffffa06f9f29>] ? br_nf_forward_finish+0xb9/0x180 [bridge]
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.787256]  
[<ffffffffa06faa21>] ? br_nf_forward_ip+0x291/0x3d0 [bridge]
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.787318]  
[<ffffffff8133c0c4>] ? nf_iterate+0x84/0xa0
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.787379]  
[<ffffffffa06a301f>] ? tcp_packet+0x82f/0xf10 [nf_conntrack]
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.787442]  
[<ffffffffa06f3f00>] ? br_multicast_flood+0x170/0x170 [bridge]
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.787503]  
[<ffffffff8133c14e>] ? nf_hook_slow+0x6e/0x130
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.787563]  
[<ffffffffa06f3f00>] ? br_multicast_flood+0x170/0x170 [bridge]
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.787626]  
[<ffffffffa06f3fe0>] ? __br_forward+0x90/0xb0 [bridge]
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.787688]  
[<ffffffffa06f4e34>] ? br_handle_frame_finish+0x214/0x2b0 [bridge]
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.787765]  
[<ffffffffa06fa2ab>] ? br_nf_pre_routing_finish+0x19b/0x340 [bridge]
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.787842]  
[<ffffffffa06fb0f2>] ? br_nf_pre_routing+0x3a2/0x650 [bridge]
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.787904]  
[<ffffffff8108b184>] ? generic_exec_single+0xb4/0xc0
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.787964]  
[<ffffffff8133c0c4>] ? nf_iterate+0x84/0xa0
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.788025]  
[<ffffffffa06f4c20>] ? br_handle_local_finish+0x50/0x50 [bridge]
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.788087]  
[<ffffffff8133c14e>] ? nf_hook_slow+0x6e/0x130
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.788147]  
[<ffffffffa06f4c20>] ? br_handle_local_finish+0x50/0x50 [bridge]
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.788210]  
[<ffffffffa06f5098>] ? br_handle_frame+0x1c8/0x260 [bridge]
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.788273]  
[<ffffffffa06f4ed0>] ? br_handle_frame_finish+0x2b0/0x2b0 [bridge]
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.788348]  
[<ffffffff813121b8>] ? __netif_receive_skb+0x418/0x5a0
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.788409]  
[<ffffffffa0736954>] ? ipt_do_table+0x344/0x5e0 [ip_tables]
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.788470]  
[<ffffffff813124ca>] ? netif_receive_skb+0x1a/0x80
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.788530]  
[<ffffffff81312620>] ? napi_skb_finish+0x50/0x70
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.788599]  
[<ffffffffa0126bc6>] ? bnx2x_rx_int+0x656/0x13d0 [bnx2x]
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.788671]  
[<ffffffffa01994ae>] ? lpfc_sli_handle_fast_ring_event+0x26e/0x5d0 [lpfc]
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.788748]  
[<ffffffffa071abf5>] ? ipv4_confirm+0x175/0x200 [nf_conntrack_ipv4]
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.788828]  
[<ffffffffa0129073>] ? bnx2x_poll+0x93/0x2b0 [bnx2x]
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.788889]  
[<ffffffff81312e98>] ? net_rx_action+0x138/0x220
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.788949]  
[<ffffffff810424ae>] ? __do_softirq+0xae/0x1c0
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.789009]  
[<ffffffff813c281c>] ? call_softirq+0x1c/0x30
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.789068]  
[<ffffffff81004b95>] ? do_softirq+0x75/0xb0
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.789127]  
[<ffffffff81042845>] ? irq_exit+0xa5/0xb0
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.789185]  
[<ffffffff8100480b>] ? do_IRQ+0x5b/0xd0
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.789243]  
[<ffffffff813c0aea>] ? common_interrupt+0x6a/0x6a
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.789301]  
<EOI>  [<ffffffff8104ac21>] ? get_next_timer_interrupt+0x1e1/0x280
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.789414]  
[<ffffffff8102ab82>] ? native_safe_halt+0x2/0x10
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.789474]  
[<ffffffff8100b847>] ? default_idle+0x47/0x190
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.789533]  
[<ffffffff8100b9e0>] ? amd_e400_idle+0x50/0x110
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.789593]  
[<ffffffff8100c466>] ? cpu_idle+0xb6/0xd0
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.789651]  
[<ffffffff8157fb77>] ? start_kernel+0x366/0x371
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.789711]  
[<ffffffff8157f627>] ? repair_env_string+0x5b/0x5b
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.789771]  
[<ffffffff8157f436>] ? x86_64_start_kernel+0x105/0x114
Jul 31 18:15:01 singleton.u06.univ-nantes.prive kernel: [ 1175.789831] 
---[ end trace ad41e3fec21667dd ]---


Shorter traces :
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.537129] 
WARNING: at net/core/dev.c:1888 skb_warn_bad_offload+0xb6/0xc1()
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.537156] 
Hardware name: PowerEdge M605
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.537178] : 
caps=(0x0000000000005000, 0x0000000000000000) len=23220 data_len=21720 
gso_size=1448 gso_type=1 ip_summed=1
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.537226] 
Modules linked in: rbd libceph ipt_MASQUERADE iptable_nat nf_nat 
ipt_REJECT veth fuse xt_physdev xt_iprange xt_multiport ip6table_filter 
ip6_tables xt_LOG xt_limit xt_tcpudp xt_state iptable_filter ip_tables 
x_tables nf_conntrack_tftp nf_conntrack_ftp nf_conntrack_ipv4 
nf_defrag_ipv4 8021q bridge stp llc ext2 mbcache dm_round_robin 
dm_multipath scsi_dh nf_conntrack_ipv6 nf_conntrack nf_defrag_ipv6 ipv6 
powernow_k8 freq_table mperf kvm_amd snd_pcm kvm snd_timer snd soundcore 
snd_page_alloc tpm_tis tpm tpm_bios pcspkr evdev psmouse microcode 
joydev dcdbas shpchp i2c_nforce2 pci_hotplug serio_raw processor 
i2c_core hid_generic thermal_sys hed button xfs exportfs dm_mod ses 
enclosure usbhid hid sg sr_mod sd_mod cdrom usb_storage lpfc 
scsi_transport_fc scsi_tgt ohci_hcd bnx2x mptsas mptscsih bnx2 mptbase 
scsi_transport_sas crc32c scsi_mod libcrc32c mdio ehci_hcd [last 
unloaded: scsi_wait_scan]
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.537632] 
Pid: 22553, comm: smtp Tainted: G        W 3.5.0-dsiun-120521 #5
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.537673] 
Call Trace:
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.537691]  
<IRQ>  [<ffffffff813bde00>] ? skb_warn_bad_offload+0x6f/0xc1
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.537720]  
[<ffffffff8103a109>] ? warn_slowpath_common+0x79/0xc0
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.537747]  
[<ffffffff8103a205>] ? warn_slowpath_fmt+0x45/0x50
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.537773]  
[<ffffffff813bde47>] ? skb_warn_bad_offload+0xb6/0xc1
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.537800]  
[<ffffffff813110e7>] ? skb_gso_segment+0x207/0x280
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.537826]  
[<ffffffff81313f26>] ? dev_hard_start_xmit+0x1f6/0x620
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.537853]  
[<ffffffff8132f17d>] ? sch_direct_xmit+0xfd/0x1d0
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.537879]  
[<ffffffff813147a4>] ? dev_queue_xmit+0x454/0x610
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.537907]  
[<ffffffffa06f3c42>] ? br_dev_queue_push_xmit+0x72/0xc0 [bridge]
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.537937]  
[<ffffffffa06fa673>] ? br_nf_post_routing+0x223/0x340 [bridge]
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.538103]  
[<ffffffffa06f3f42>] ? br_forward_finish+0x42/0x50 [bridge]
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.538132]  
[<ffffffffa06f9f29>] ? br_nf_forward_finish+0xb9/0x180 [bridge]
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.538704]  
[<ffffffff813124ca>] ? netif_receive_skb+0x1a/0x80
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.539024]  
<EOI>
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.539162] : 
caps=(0x0000000000005000, 0x0000000000000000) len=6250 data_len=4750 
gso_size=1448 gso_type=1 ip_summed=1
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.539209] 
Modules linked in: rbd libceph ipt_MASQUERADE iptable_nat nf_nat 
ipt_REJECT veth fuse xt_physdev xt_iprange xt_multiport ip6table_filter 
ip6_tables xt_LOG xt_limit xt_tcpudp xt_state iptable_filter ip_tables 
x_tables nf_conntrack_tftp nf_conntrack_ftp nf_conntrack_ipv4 
nf_defrag_ipv4 8021q bridge stp llc ext2 mbcache dm_round_robin 
dm_multipath scsi_dh nf_conntrack_ipv6 nf_conntrack nf_defrag_ipv6 ipv6 
powernow_k8 freq_table mperf kvm_amd snd_pcm kvm snd_timer snd soundcore 
snd_page_alloc tpm_tis tpm tpm_bios pcspkr evdev psmouse microcode 
joydev dcdbas shpchp i2c_nforce2 pci_hotplug serio_raw processor 
i2c_core hid_generic thermal_sys hed button xfs exportfs dm_mod ses 
enclosure usbhid hid sg sr_mod sd_mod cdrom usb_storage lpfc 
scsi_transport_fc scsi_tgt ohci_hcd bnx2x mptsas mptscsih bnx2 mptbase 
scsi_transport_sas crc32c scsi_mod libcrc32c mdio ehci_hcd [last 
unloaded: scsi_wait_scan]
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.539614] 
Pid: 22553, comm: smtp Tainted: G        W 3.5.0-dsiun-120521 #5
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.539654] 
Call Trace:
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.539673]  
<IRQ>  [<ffffffff813bde00>] ? skb_warn_bad_offload+0x6f/0xc1
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.539702]  
[<ffffffff8103a109>] ? warn_slowpath_common+0x79/0xc0
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.539728]  
[<ffffffff8103a205>] ? warn_slowpath_fmt+0x45/0x50
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.539755]  
[<ffffffff813bde47>] ? skb_warn_bad_offload+0xb6/0xc1
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.539782]  
[<ffffffff813110e7>] ? skb_gso_segment+0x207/0x280
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.539808]  
[<ffffffff81313f26>] ? dev_hard_start_xmit+0x1f6/0x620
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.540933]  
[<ffffffff81042845>] ? irq_exit+0xa5/0xb0
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.543067]  
[<ffffffff813147a4>] ? dev_queue_xmit+0x454/0x610
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.543095]  
[<ffffffffa06f3c42>] ? br_dev_queue_push_xmit+0x72/0xc0 [bridge]
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.543125]  
[<ffffffffa06fa673>] ? br_nf_post_routing+0x223/0x340 [bridge]
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.543514]  
[<ffffffffa06f3fe0>] ? __br_forward+0x90/0xb0 [bridge]
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.543585]  
[<ffffffffa06fa2ab>] ? br_nf_pre_routing_finish+0x19b/0x340 [bridge]
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.543629]  
[<ffffffffa06fb0f2>] ? br_nf_pre_routing+0x3a2/0x650 [bridge]
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.543657]  
[<ffffffff8133c0c4>] ? nf_iterate+0x84/0xa0
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.543684]  
[<ffffffffa06f4c20>] ? br_handle_local_finish+0x50/0x50 [bridge]
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.543712]  
[<ffffffff8133c14e>] ? nf_hook_slow+0x6e/0x130
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.543739]  
[<ffffffffa06f4c20>] ? br_handle_local_finish+0x50/0x50 [bridge]
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.543767]  
[<ffffffff8133c14e>] ? nf_hook_slow+0x6e/0x130
Aug  1 14:37:41 singleton.u06.univ-nantes.prive kernel: [74424.543795]  
[<ffffffffa06f5098>] ? br_handle_frame+0x1c8/0x260 [bridge]

Despite thoses messages, the machine is still running OK. It runs lxc 
instances (and so , bridge & tun/tap), only one of thoses instances uses 
rbd.

I don't think the problem is ceph related.

This machine have bnx2 (Gb) & bnx2x (10Gb) - Lots of trafic is using 
bnx2x-.

I'm running 3.5.0 on other hosts (bnx2/bnx2x or ixgbe drivers) without 
problems. But it's not the same workload.

As the problem seems more or less gso related, I've deactivated gso two 
days ago. This cure the symptom, running ok since.

Anyone here  seeing this problem ?

Cheers,

-- 
Yann Dupont - Service IRTS, DSI Université de Nantes
Tel : 02.53.48.49.20 - Mail/Jabber : Yann.Dupont@...v-nantes.fr

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