[OpenWrt-Devel] mt7620n failed message

zhang zhao formywillcancer at gmail.com
Mon Nov 24 03:04:35 EST 2014


I'm using a 7620n router(openwrt BB14.07  r43276) with a secondary SSID
enabled, after running for sometime I found these trace information in
system log. I remember there is already a ticket
https://dev.openwrt.org/ticket/17032 , I wonder if these two problems was
caused by a same reason?

Here is the error log:
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.350000] ------------[ cut
here ]------------
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.360000] WARNING: at
net/core/dev.c:2194 skb_warn_bad_offload+0xbc/0xe4()
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.370000] rt2800_wmac:
caps=(0x0000000000006000, 0x0000000000000000) len=117 data_len=0
gso_size=51 gso_type=0 ip_summed=3
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.390000] Modules linked
in: rt2800soc rt2800mmio rt2800lib pppoe ppp_async iptable_nat rt2x00soc
rt2x00mmio rt2x00lib pppox ppp_generic nf_nat_ipv4 nf_conntrack_ipv4
mac80211 ipt_MASQUERADE cfg80211 xt_time xt_tcpudp xt_state xt_nat
xt_multiport xt_mark xt_mac xt_limit xt_id xt_conntrack xt_comment
xt_TCPMSS xt_REDIRECT xt_LOG xt_CT slhc nf_nat_irc nf_nat_ftp nf_nat
nf_defrag_ipv4 nf_conntrack_irc nf_conntrack_ftp iptable_raw iptable_mangle
iptable_filter ipMon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.530000]
CPU: 0 PID: 0 Comm: swapper Tainted: G        W    3.10.49 #4
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.540000] Stack : 00000000
00000000 00000000 00000000 8031a35e 0000003d 802b6260 83246e18
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.540000]         80276544
802b668b 00000000 8031381c 802b6260 83246e18 00000000 00000000
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.540000]         00010000
80222e44 00000003 801883a4 8028c148 83246e18 80277c04 802ab9e4
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.540000]         00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.540000]         00000000
00000000 00000000 00000000 00000000 00000000 00000000 802ab970
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.540000]         ...
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.620000] Call Trace:
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.620000] [<801c6848>]
show_stack+0x48/0x70
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.630000] [<80233b24>]
warn_slowpath_common+0x78/0xa8
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.640000] [<80233b80>]
warn_slowpath_fmt+0x2c/0x38
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.650000] [<80223528>]
skb_warn_bad_offload+0xbc/0xe4
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.660000] [<801cf398>]
skb_checksum_help+0x40/0x1c0
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.670000] [<8009e4d8>]
dev_hard_start_xmit+0x2cc/0x470
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.680000] [<801afec0>]
sch_direct_xmit+0x60/0x254
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.690000] [<8009fa54>]
dev_queue_xmit+0x258/0x494
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.700000] [<80072a20>]
br_dev_queue_push_xmit+0x6c/0x80
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.710000] [<80072df4>]
br_dev_xmit+0x1cc/0x200
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.720000] [<8009e4f8>]
dev_hard_start_xmit+0x2ec/0x470
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.730000] [<8009fbc4>]
dev_queue_xmit+0x3c8/0x494
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.740000] [<80109638>]
ip_finish_output+0x398/0x42c
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.750000] [<800414cc>]
__netif_receive_skb_core+0x5ac/0x6a4
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.760000] [<8013c0a0>]
lro_flush+0x170/0x1b8
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.770000] [<8013c12c>]
lro_flush_all+0x44/0x64
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.780000] [<800cc0d4>]
fe_poll_rx+0x2a0/0x314
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.790000] [<80159214>]
net_rx_action+0x10c/0x1e0
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.800000] [<8003035c>]
__do_softirq+0xd0/0x1bc
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.810000] [<800b84b0>]
do_softirq+0x48/0x68
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.820000] [<801174cc>]
irq_exit+0x54/0x70
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.820000] [<80004830>]
ret_from_irq+0x0/0x4
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.830000] [<80199fec>]
r4k_wait_irqoff+0x18/0x1c
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.840000] [<80090d60>]
cpu_startup_entry+0xa4/0x104
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.850000] [<802c7910>]
start_kernel+0x38c/0x3a4
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.860000]
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.870000] ---[ end trace
6faa69b048fb57b1 ]---
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2821.700000] ------------[ cut
here ]------------
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2821.710000] WARNING: at
net/core/dev.c:2194 skb_warn_bad_offload+0xbc/0xe4()
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2821.720000] rt2800_wmac:
caps=(0x0000000000006000, 0x0000000000000000) len=117 data_len=0
gso_size=51 gso_type=0 ip_summed=3
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2821.740000] Modules linked
in: rt2800soc rt2800mmio rt2800lib pppoe ppp_async iptable_nat rt2x00soc
rt2x00mmio rt2x00lib pppox ppp_generic nf_nat_ipv4 nf_conntrack_ipv4
mac80211 ipt_MASQUERADE cfg80211 xt_time xt_tcpudp xt_state xt_nat
xt_multiport xt_mark xt_mac xt_limit xt_id xt_conntrack xt_comment
xt_TCPMSS xt_REDIRECT xt_LOG xt_CT slhc nf_nat_irc nf_nat_ftp nf_nat
nf_defrag_ipv4 nf_conntrack_irc nf_conntrack_ftp iptable_raw iptable_mangle
iptable_filter ipMon Nov 24 07:25:42 2014 kern.warn kernel: [ 2821.880000]
CPU: 0 PID: 0 Comm: swapper Tainted: G        W    3.10.49 #4
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2821.900000] Stack : 00000000
00000000 00000000 00000000 8031a35e 0000003d 802b6260 83246e18
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2821.900000]         80276544
802b668b 00000000 8031381c 802b6260 83246e18 00000000 00000000
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2821.900000]         00010000
80222e44 00000003 801883a4 8028c148 83246e18 80277c04 802ab9e4
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2821.900000]         00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2821.900000]         00000000
00000000 00000000 00000000 00000000 00000000 00000000 802ab970
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2821.900000]         ...
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2821.970000] Call Trace:
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2821.970000] [<801c6848>]
show_stack+0x48/0x70
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2821.980000] [<80233b24>]
warn_slowpath_common+0x78/0xa8
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2821.990000] [<80233b80>]
warn_slowpath_fmt+0x2c/0x38
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2822.000000] [<80223528>]
skb_warn_bad_offload+0xbc/0xe4
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2822.010000] [<801cf398>]
skb_checksum_help+0x40/0x1c0
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2822.020000] [<8009e4d8>]
dev_hard_start_xmit+0x2cc/0x470
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2822.030000] [<801afec0>]
sch_direct_xmit+0x60/0x254
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2822.040000] [<8009fa54>]
dev_queue_xmit+0x258/0x494
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2822.050000] [<80072a20>]
br_dev_queue_push_xmit+0x6c/0x80
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2822.060000] [<80072df4>]
br_dev_xmit+0x1cc/0x200
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2822.070000] [<8009e4f8>]
dev_hard_start_xmit+0x2ec/0x470
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2822.080000] [<8009fbc4>]
dev_queue_xmit+0x3c8/0x494
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2822.090000] [<80109650>]
ip_finish_output+0x3b0/0x42c
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2822.100000] [<800414cc>]
__netif_receive_skb_core+0x5ac/0x6a4
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2822.110000] [<8013c0a0>]
lro_flush+0x170/0x1b8
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2822.120000] [<8013c12c>]
lro_flush_all+0x44/0x64
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2822.130000] [<800cc0d4>]
fe_poll_rx+0x2a0/0x314
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2822.140000] [<80159214>]
net_rx_action+0x10c/0x1e0
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2822.150000] [<8003035c>]
__do_softirq+0xd0/0x1bc
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2822.160000] [<800b84b0>]
do_softirq+0x48/0x68
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2822.170000] [<801174cc>]
irq_exit+0x54/0x70
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2822.180000] [<80004830>]
ret_from_irq+0x0/0x4
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2822.180000] [<80199fec>]
r4k_wait_irqoff+0x18/0x1c
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2822.190000] [<80090d60>]
cpu_startup_entry+0xa4/0x104
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2822.200000] [<802c7910>]
start_kernel+0x38c/0x3a4
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2822.210000]
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2822.220000] ---[ end trace
6faa69b048fb57b2 ]---


Thanks~

-- 
Best Regards,

Zhao Zhang,
Undergraduate from
Dept. of Computer Science & Technology,
Ocean University of China,
Qingdao, China, 266100
Phone 18678430893
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