[OpenWrt-Devel] info about distance optimization
I found there exist distance optimization entry in Luci's wifi configure page. I think it's interesting and want to go further about it. Hardware driver programming is not too difficult for me. Anyone have any idea where should I start from? Thinks~ -- Best Regards, Zhao Zhang, Undergraduate from Dept. of Computer Science & Technology, Ocean University of China, Qingdao, China, 266100 Phone 18678430893 ___ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
[OpenWrt-Devel] mt7620n failed message
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: [ 2810.35] [ cut
here ]
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.36] WARNING: at
net/core/dev.c:2194 skb_warn_bad_offload+0xbc/0xe4()
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.37] rt2800_wmac:
caps=(0x6000, 0x) len=117 data_len=0
gso_size=51 gso_type=0 ip_summed=3
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.39] 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: [ 2810.53]
CPU: 0 PID: 0 Comm: swapper Tainted: GW3.10.49 #4
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.54] Stack :
8031a35e 003d 802b6260 83246e18
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.54] 80276544
802b668b 8031381c 802b6260 83246e18
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.54] 0001
80222e44 0003 801883a4 8028c148 83246e18 80277c04 802ab9e4
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.54]
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.54]
802ab970
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.54] ...
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.62] Call Trace:
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.62] [<801c6848>]
show_stack+0x48/0x70
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.63] [<80233b24>]
warn_slowpath_common+0x78/0xa8
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.64] [<80233b80>]
warn_slowpath_fmt+0x2c/0x38
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.65] [<80223528>]
skb_warn_bad_offload+0xbc/0xe4
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.66] [<801cf398>]
skb_checksum_help+0x40/0x1c0
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.67] [<8009e4d8>]
dev_hard_start_xmit+0x2cc/0x470
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.68] [<801afec0>]
sch_direct_xmit+0x60/0x254
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.69] [<8009fa54>]
dev_queue_xmit+0x258/0x494
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.70] [<80072a20>]
br_dev_queue_push_xmit+0x6c/0x80
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.71] [<80072df4>]
br_dev_xmit+0x1cc/0x200
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.72] [<8009e4f8>]
dev_hard_start_xmit+0x2ec/0x470
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.73] [<8009fbc4>]
dev_queue_xmit+0x3c8/0x494
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.74] [<80109638>]
ip_finish_output+0x398/0x42c
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.75] [<800414cc>]
__netif_receive_skb_core+0x5ac/0x6a4
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.76] [<8013c0a0>]
lro_flush+0x170/0x1b8
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.77] [<8013c12c>]
lro_flush_all+0x44/0x64
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.78] [<800cc0d4>]
fe_poll_rx+0x2a0/0x314
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.79] [<80159214>]
net_rx_action+0x10c/0x1e0
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.80] [<8003035c>]
__do_softirq+0xd0/0x1bc
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.81] [<800b84b0>]
do_softirq+0x48/0x68
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.82] [<801174cc>]
irq_exit+0x54/0x70
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.82] [<80004830>]
ret_from_irq+0x0/0x4
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.83] [<80199fec>]
r4k_wait_irqoff+0x18/0x1c
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.84] [<80090d60>]
cpu_startup_entry+0xa4/0x104
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.85] [<802c7910>]
start_kernel+0x38c/0x3a4
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.86]
Mon Nov 24 07:25:31 2014 kern.warn kernel: [ 2810.87] ---[ end trace
6faa69b048fb57b1 ]---
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2821.70] [ cut
here ]
Mon Nov 24 07:25:42 2014 kern.warn kernel: [ 2821.71] WARNING: at
net/core/dev.c:2194 skb_warn_bad_offload+0xbc/0xe4()
Mon Nov 24 07:25:42
[OpenWrt-Devel] system reboot command from ssh failed sometimes on my ar9344 board
It's just weird that sometimes when I perform reboot operation on my tp-link wdr6300v2(ar9344), the reboot procedure just hang up with all leds on and doesn't go any further. So I can only re-plug the power line then system boots normally. the firmware was built from there: https://github.com/981213/openwrt . This is a cloned CC version and the author added wdr6300 support. Note that this problem doesn't happen every time when I reboot, and when this happen, ssh connection is already closed. So it's difficult for me to find out where the problem is. Any one have any idea where can I go find out the problem is? Thanks ahead~ -- Best Regards, Zhao Zhang, Undergraduate from Dept. of Computer Science & Technology, Ocean University of China, Qingdao, China, 266100 Phone 18678430893 ___ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
