#17556: mt7620n kernel 3.10
---------------------------------+-------------------------------------
Reporter: guozhengqian0825@… | Owner: developers
Type: defect | Status: new
Priority: high | Milestone: Barrier Breaker 14.07
Component: other | Version: Trunk
Resolution: | Keywords: mt7620n wireless driver
---------------------------------+-------------------------------------
Comment (by rklauco@…):
Hello. I have Nexx WT3020A and TP-link TL-WR3040. Both experience the same
issues when uploading larget file using wireless.
Following is the kernel trace from device log, when the bug occurred. One
or more wifi clients (n-standard usually) disconnects and is unable to
reconnect until I reboot the device. Other clients work with no issue and
continue to work further. I am usint OpenWRT build form OnionWRT (OpenWRT
r43032).
Any advice?
2014-12-04T09:37:26+01:00 gateway kernel: [54976.210000] ------------[ cut
here ]------------
2014-12-04T09:37:26+01:00 gateway kernel: [54976.210000] WARNING: CPU: 0
PID: 0 at net/core/dev.c:2245 skb_warn_bad_offload+0xbc/0xe4()
2014-12-04T09:37:26+01:00 gateway kernel: [54976.230000] rt2800_wmac:
caps=(0x0000000000006000, 0x0000000000000000) len=118 data_len=0
gso_size=52 gso_type=0 ip_summed=3
2014-12-04T09:37:26+01:00 gateway kernel: [54976.250000] Modules linked
in: rt2800soc rt2800mmio rt2800lib iptable_nat rt2x00soc rt2x00mmio
rt2x00lib nf_nat_ipv4 nf_conntrack_ipv6 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 nf_nat_irc nf_nat_ftp nf_nat nf_defrag_ipv6
nf_defrag_ipv4 nf_conntrack_irc nf_conntrack_ftp nf_conntrack iptable_raw
iptable_mangle iptable_filter ipt_REJECT ip_tables crc_itu_t crc_ccit
2014-12-04T09:37:26+01:00 gateway kernel: [54976.380000] CPU: 0 PID: 0
Comm: swapper Tainted: G W 3.14.18 #2
2014-12-04T09:37:26+01:00 gateway kernel: [54976.400000] Stack : 00000000
00000000 00000000 00000000 8031ad2e 0000003d 802be510 83247aac
2014-12-04T09:37:26+01:00 gateway kernel: [54976.400000] #011 8027b6d4
802be937 00000000 8031399c 802be510 83247aac 00000000 00000000
2014-12-04T09:37:26+01:00 gateway kernel: [54976.400000] #011 802b5120
80225228 00000003 80190ad4 000008c5 83247aac 8027e850 802b39f4
2014-12-04T09:37:26+01:00 gateway kernel: [54976.400000] #011 00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000
2014-12-04T09:37:26+01:00 gateway kernel: [54976.400000] #011 00000000
00000000 00000000 00000000 00000000 00000000 00000000 802b3980
2014-12-04T09:37:26+01:00 gateway kernel: [54976.400000] #011 ...
2014-12-04T09:37:26+01:00 gateway kernel: [54976.460000] Call Trace:
2014-12-04T09:37:26+01:00 gateway kernel: [54976.480000] [<801ccb30>]
show_stack+0x48/0x70
2014-12-04T09:37:26+01:00 gateway kernel: [54976.480000] [<8023655c>]
warn_slowpath_common+0x84/0xb4
2014-12-04T09:37:26+01:00 gateway kernel: [54976.480000] [<802365b8>]
warn_slowpath_fmt+0x2c/0x38
2014-12-04T09:37:26+01:00 gateway kernel: [54976.500000] [<80225778>]
skb_warn_bad_offload+0xbc/0xe4
2014-12-04T09:37:26+01:00 gateway kernel: [54976.510000] [<801d4384>]
skb_checksum_help+0x40/0x1c0
2014-12-04T09:37:26+01:00 gateway kernel: [54976.520000] [<800a6dc0>]
dev_hard_start_xmit+0x2dc/0x46c
2014-12-04T09:37:26+01:00 gateway kernel: [54976.540000] [<801b73fc>]
sch_direct_xmit+0x60/0x20c
2014-12-04T09:37:26+01:00 gateway kernel: [54976.540000] [<8002f8a8>]
__dev_queue_xmit+0x244/0x468
2014-12-04T09:37:26+01:00 gateway kernel: [54976.560000] [<800755b0>]
br_dev_queue_push_xmit+0x6c/0x80
2014-12-04T09:37:26+01:00 gateway kernel: [54976.560000] [<80075988>]
br_dev_xmit+0x1e0/0x218
2014-12-04T09:37:26+01:00 gateway kernel: [54976.580000] [<800a6de0>]
dev_hard_start_xmit+0x2fc/0x46c
2014-12-04T09:37:26+01:00 gateway kernel: [54976.580000] [<8002f9e8>]
__dev_queue_xmit+0x384/0x468
2014-12-04T09:37:26+01:00 gateway kernel: [54976.580000] [<8010e480>]
ip_finish_output+0x418/0x480
2014-12-04T09:37:26+01:00 gateway kernel: [54976.580000] [<80042888>]
__netif_receive_skb_core+0x47c/0x53c
2014-12-04T09:37:26+01:00 gateway kernel: [54976.580000] [<80143dec>]
lro_flush+0x170/0x1b8
2014-12-04T09:37:26+01:00 gateway kernel: [54976.580000] [<80143e78>]
lro_flush_all+0x44/0x64
2014-12-04T09:37:26+01:00 gateway kernel: [54976.580000] [<800d1eb8>]
fe_poll_rx+0x2a0/0x314
2014-12-04T09:37:26+01:00 gateway kernel: [54976.580000] [<8016117c>]
net_rx_action+0x10c/0x1e0
2014-12-04T09:37:26+01:00 gateway kernel: [54976.580000] [<80031f4c>]
__do_softirq+0xf8/0x228
2014-12-04T09:37:26+01:00 gateway kernel: [54976.580000] [<8011c368>]
irq_exit+0x54/0x70
2014-12-04T09:37:26+01:00 gateway kernel: [54976.580000] [<80004830>]
ret_from_irq+0x0/0x4
2014-12-04T09:37:26+01:00 gateway kernel: [54976.580000] [<801a1a38>]
r4k_wait_irqoff+0x18/0x1c
2014-12-04T09:37:26+01:00 gateway kernel: [54976.580000] [<80098e58>]
cpu_startup_entry+0xa4/0x104
2014-12-04T09:37:26+01:00 gateway kernel: [54976.580000] [<802d094c>]
start_kernel+0x3c8/0x3e0
2014-12-04T09:37:26+01:00 gateway kernel: [54976.580000]
2014-12-04T09:37:26+01:00 gateway kernel: [54976.580000] ---[ end trace
aeedebf680378b30 ]---
--
Ticket URL: <https://dev.openwrt.org/ticket/17556#comment:8>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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