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<DIV><FONT face=Arial size=2><SPAN class=078044014-01072011>I'm receiving the
following kernel messages when traffic flows across a server configured as
router using IPoIB between an IB fabric and 10GbE ethernet storage network. I
can succesfully mount a storage device across the router from an Ib connected
device across IPoIB, but the reponsivness suggests there is a config issue
somewhere due to intermittent hangs and poor performance.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=078044014-01072011></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=078044014-01072011>RHEl6 &
OFED1.5.3.1 and the following Mellanox HCA's</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=078044014-01072011></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2>09:00.0 Ethernet controller: Mellanox Technologies
MT26448 [ConnectX EN 10GigE, PCIe 2.0 5GT/s] (rev b0)<BR>0f:00.0 InfiniBand:
Mellanox Technologies MT26428 [ConnectX VPI PCIe 2.0 5GT/s - IB QDR / 10GigE]
(rev b0)<BR></FONT></DIV>
<DIV><SPAN class=078044014-01072011><FONT face=Arial><FONT size=2><SPAN
class=026495414-01072011><FONT
color=#0000ff> </FONT></SPAN></FONT></FONT></SPAN></DIV>
<DIV><SPAN class=078044014-01072011><FONT face=Arial><FONT size=2><SPAN
class=026495414-01072011> </SPAN>I suspect its simply a config issue but if
anyone has any ideas that would be greatfully
appreciated.</FONT></FONT></SPAN></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=078044014-01072011></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN
class=078044014-01072011>Regards</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=078044014-01072011>Wayne</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2> </DIV></FONT>
<DIV><FONT face=Arial size=2>Jul 1 15:23:16 dlonapahls52 kernel:
------------[ cut here ]------------<BR>Jul 1 15:23:16 dlonapahls52
kernel: WARNING: at net/core/dev.c:1640 skb_gso_segment+0x1e7/0x2c0() (Tainted:
G W ----------------
)<BR>Jul 1 15:23:16 dlonapahls52 kernel: Hardware name: ProLiant DL385
G7<BR>Jul 1 15:23:16 dlonapahls52 kernel: ipoib: caps=(0x8c20, 0x0)
len=1500 data_len=1388 ip_summed=1<BR>Jul 1 15:23:16 dlonapahls52 kernel:
Modules linked in: nfs lockd fscache nfs_acl auth_rpcgss sunrpc bonding
rdma_ucm(U) ib_sdp(U) rdma_cm(U) iw_cm(U) ib_addr(U) ib_ipoib(U) ib_cm(U)
ib_sa(U) ipv6 ib_uverbs(U) ib_umad(U) iw_nes(U) libcrc32c iw_cxgb3(U) cxgb3(U)
ib_qib(U) dca mlx4_ib(U) mlx4_en(U) mlx4_core(U) ib_mthca(U) ib_mad(U)
ib_core(U) dm_mirror dm_region_hash dm_log dm_round_robin scsi_dh_rdac
dm_multipath uinput power_meter hwmon serio_raw amd64_edac_mod edac_core
edac_mce_amd i2c_piix4 sg hpilo bnx2 ext4 mbcache jbd2 sr_mod cdrom sd_mod
crc_t10dif ata_generic pata_acpi pata_atiixp ahci hpsa mpt2sas
scsi_transport_sas raid_class radeon ttm drm_kms_helper drm i2c_algo_bit
i2c_core dm_mod [last unloaded: scsi_wait_scan]<BR>Jul 1 15:23:16
dlonapahls52 kernel: Pid: 0, comm: swapper Tainted:
G W ----------------
2.6.32-71.el6.x86_64 #1<BR>Jul 1 15:23:16 dlonapahls52 kernel: Call
Trace:<BR>Jul 1 15:23:16 dlonapahls52 kernel: <IRQ>
[<ffffffff8106b857>] warn_slowpath_common+0x87/0xc0<BR>Jul 1
15:23:16 dlonapahls52 kernel: [<ffffffff8106b946>]
warn_slowpath_fmt+0x46/0x50<BR>Jul 1 15:23:16 dlonapahls52 kernel:
[<ffffffff81410197>] skb_gso_segment+0x1e7/0x2c0<BR>Jul 1 15:23:16
dlonapahls52 kernel: [<ffffffff81410420>]
dev_hard_start_xmit+0x1b0/0x370<BR>Jul 1 15:23:16 dlonapahls52 kernel:
[<ffffffff814288aa>] sch_direct_xmit+0x15a/0x1c0<BR>Jul 1 15:23:16
dlonapahls52 kernel: [<ffffffff81413ab8>]
dev_queue_xmit+0x378/0x4a0<BR>Jul 1 15:23:16 dlonapahls52 kernel:
[<ffffffff81417ddd>] neigh_connected_output+0xbd/0x100<BR>Jul 1
15:23:16 dlonapahls52 kernel: [<ffffffff81446d77>]
ip_finish_output+0x237/0x310<BR>Jul 1 15:23:16 dlonapahls52 kernel:
[<ffffffff81446f08>] ip_output+0xb8/0xc0<BR>Jul 1 15:23:16
dlonapahls52 kernel: [<ffffffff8144242f>]
ip_forward_finish+0x4f/0x60<BR>Jul 1 15:23:16 dlonapahls52 kernel:
[<ffffffff81442630>] ip_forward+0x1f0/0x420<BR>Jul 1 15:23:16
dlonapahls52 kernel: [<ffffffff814407dd>]
ip_rcv_finish+0x12d/0x440<BR>Jul 1 15:23:16 dlonapahls52 kernel:
[<ffffffff81440d65>] ip_rcv+0x275/0x350<BR>Jul 1 15:23:16
dlonapahls52 kernel: [<ffffffff8140f2cb>]
netif_receive_skb+0x38b/0x670<BR>Jul 1 15:23:16 dlonapahls52 kernel:
[<ffffffff814277d0>] ? eth_type_trans+0x40/0x140<BR>Jul 1 15:23:16
dlonapahls52 kernel: [<ffffffffa03657e1>]
mlx4_en_lro_flush_single+0x1b1/0x280 [mlx4_en]<BR>Jul 1 15:23:16
dlonapahls52 kernel: [<ffffffffa036590c>] mlx4_en_lro_flush+0x5c/0x70
[mlx4_en]<BR>Jul 1 15:23:16 dlonapahls52 kernel:
[<ffffffffa035ebd0>] mlx4_en_process_rx_cq+0x370/0x4b0
[mlx4_en]<BR>Jul 1 15:23:16 dlonapahls52 kernel:
[<ffffffffa035ed6b>] mlx4_en_poll_rx_cq+0x5b/0xe0 [mlx4_en]<BR>Jul 1
15:23:16 dlonapahls52 kernel: [<ffffffffa032f5e2>] ?
mlx4_cq_completion+0x42/0x90 [mlx4_core]<BR>Jul 1 15:23:16 dlonapahls52
kernel: [<ffffffff8140fe53>] net_rx_action+0x103/0x210<BR>Jul 1
15:23:16 dlonapahls52 kernel: [<ffffffff81073bd7>]
__do_softirq+0xb7/0x1e0<BR>Jul 1 15:23:16 dlonapahls52 kernel:
[<ffffffff810d8740>] ? handle_IRQ_event+0x60/0x170<BR>Jul 1 15:23:16
dlonapahls52 kernel: [<ffffffff810142cc>]
call_softirq+0x1c/0x30<BR>Jul 1 15:23:16 dlonapahls52 kernel:
[<ffffffff81015f35>] do_softirq+0x65/0xa0<BR>Jul 1 15:23:16
dlonapahls52 kernel: [<ffffffff810739d5>] irq_exit+0x85/0x90<BR>Jul
1 15:23:16 dlonapahls52 kernel: [<ffffffff814cf915>]
do_IRQ+0x75/0xf0<BR>Jul 1 15:23:16 dlonapahls52 kernel:
[<ffffffff81013ad3>] ret_from_intr+0x0/0x11<BR>Jul 1 15:23:16
dlonapahls52 kernel: <EOI> [<ffffffff8103be8b>] ?
native_safe_halt+0xb/0x10<BR>Jul 1 15:23:16 dlonapahls52 kernel:
[<ffffffff8101bd3d>] default_idle+0x3d/0x90<BR>Jul 1 15:23:16
dlonapahls52 kernel: [<ffffffff81011e96>] cpu_idle+0xb6/0x110<BR>Jul
1 15:23:16 dlonapahls52 kernel: [<ffffffff814c17c8>]
start_secondary+0x1fc/0x23f<BR>Jul 1 15:23:16 dlonapahls52 kernel: ---[
end trace 1a39d434c2f7da4b ]---<BR></DIV></FONT>
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<TD vAlign=bottom noWrap align=left height=15><FONT
color=#666666><FONT face="Arial, Helvetica, sans-serif" size=1>Wayne
Glanfield</FONT></FONT></TD></TR>
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Infrastructure</FONT></TD></TR>
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href="mailto:wglanfield@maninvestments.com">wglanfield@maninvestments.com</A></FONT></TD></TR>
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<TD vAlign=bottom noWrap align=left height=15><FONT
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