[OpenWrt-Devel] Weird problem with WLAN on RT3662F+RT5392L and iwinfo crash
Piotr Dymacz
pepe2k at gmail.com
Tue Oct 6 07:08:40 EDT 2015
Hello,
I'm working on support for for Jensen AL3000DG v2 device (ramips
target, currently build on r47048).
The device is similar (but not exactly the same) to Edimax R-6475ND
and Asus RT-N56U.
Short specification:
- RT3662F (for 5 GHz radio)
- RT5392L (for 2,4 GHz radio)
- RTL8367R Gbps switch
- 8 MB SPI NOR FLASH
- 64 MB DDR2 RAM
- 2x PCB antennas (with 2x SE5005L PA for 5 GHz radio)
Support is mostly done, everything seems to work, but during final
tests I encountered a strange problem with WiFi.
I'm not able to use 2,4 GHz radio without enabling 5 GHz radio at the
same time (this problem doesn't exist on OFW).
If I enable both radios in configuration, both are up and I'm able to
connect and use them. The same if I enable only 5 GHz radio (inside
RT3662F) - it's visible and working.
If I enable only 2,4 GHz radio (RT5392L) - it seems to be up (at least
iwinfo and iw report that - see below), but I don't see the SSID in
the air.
I would be grateful for any advice how to debug that.
Full bootlog is available at [1], iw list output at [2] and dts file at [3].
-----
Some outputs, only 2,4 GHz radio enabled in config:
root at OpenWrt:/# iwinfo
wlan0 ESSID: "OpenWrt_2G"
Access Point: 34:21:09:xx:xx:xx
Mode: Master Channel: 11 (2.462 GHz)
Tx-Power: 20 dBm Link Quality: unknown/70
Signal: unknown Noise: unknown
Bit Rate: unknown
Encryption: none
Type: nl80211 HW Mode(s): 802.11bgn
Hardware: 1814:3091 1814:3091 [Generic MAC80211]
TX power offset: unknown
Frequency offset: unknown
Supports VAPs: yes PHY name: phy0
wlan1 ESSID: unknown
Access Point: 00:00:00:00:00:00
Mode: Client Channel: unknown (unknown)
Tx-Power: 0 dBm Link Quality: unknown/70
Signal: unknown Noise: unknown
Bit Rate: unknown
Encryption: unknown
Type: nl80211 HW Mode(s): 802.11an
Hardware: unknown [Generic MAC80211]
TX power offset: unknown
Frequency offset: unknown
Supports VAPs: yes PHY name: phy1
root at OpenWrt:/# cat /etc/config/wireless
config wifi-device radio0
option type mac80211
option channel 11
option hwmode 11g
option path 'pci0000:00/0000:00:01.0/0000:01:00.0'
option htmode HT20
config wifi-iface
option device radio0
option network lan
option mode ap
option ssid OpenWrt_2G
option encryption none
config wifi-device radio1
option type mac80211
option channel 36
option hwmode 11a
option path '10180000.wmac'
option htmode HT20
option disabled 1
config wifi-iface
option device radio1
option network lan
option mode ap
option ssid OpenWrt_5G
option encryption none
[...]
[ 15.550000] PCI: Enabling device 0000:01:00.0 (0000 -> 0002)
[ 15.560000] rt2800pci 0000:01:00.0: failed to load eeprom property
[ 15.570000] ieee80211 phy0: rt2x00lib_request_eeprom_file: Info -
Loading EEPROM data from 'rt2x00pci_1_0.eeprom'.
[ 15.640000] ieee80211 phy0: rt2x00_set_rt: Info - RT chipset 5392,
rev 0223 detected
[ 15.650000] ieee80211 phy0: rt2x00_set_rf: Info - RF chipset 5392 detected
[ 15.670000] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
[ 15.670000] ieee80211 phy1: rt2x00_set_rt: Info - RT chipset 3883,
rev 0400 detected
[ 15.690000] ieee80211 phy1: rt2x00_set_rf: Info - RF chipset 3853 detected
[ 15.700000] ieee80211 phy1: Selected rate control algorithm 'minstrel_ht'
[ 24.190000] ralink_soc_eth 10100000.ethernet eth0: link up
(1000Mbps/Full duplex)
[ 24.200000] 8021q: adding VLAN 0 to HW filter on device eth0
[ 24.220000] device eth0.1 entered promiscuous mode
[ 24.230000] device eth0 entered promiscuous mode
[ 24.250000] br-lan: port 1(eth0.1) entered forwarding state
[ 24.260000] br-lan: port 1(eth0.1) entered forwarding state
[ 26.260000] br-lan: port 1(eth0.1) entered forwarding state
[ 26.670000] ieee80211 phy0: rt2x00lib_request_firmware: Info -
Loading firmware file 'rt2860.bin'
[ 26.710000] ieee80211 phy0: rt2x00lib_request_firmware: Info -
Firmware detected - version: 0.34
[ 27.000000] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 27.010000] device wlan0 entered promiscuous mode
[ 27.050000] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 27.060000] br-lan: port 2(wlan0) entered forwarding state
[ 27.070000] br-lan: port 2(wlan0) entered forwarding state
[ 29.070000] br-lan: port 2(wlan0) entered forwarding state
[...]
What's more, if I try scan on 2,4 GHz radio... I'm getting this
(r47048), no matter if the 5 GHz radio is enabled or not and only at
first invoke:
root at OpenWrt:/# iwinfo wlan0 scan
[ 1084.500000] ------------[ cut here ]------------
[ 1084.510000] WARNING: CPU: 0 PID: 1087 at
/home/pepe2k/Projects/openwrt_mediatek/trunk/build_dir/target-mipsel_74kc+dsp2_musl-1.1.11/linux-ramips_rt3883/compat-wireless-2015-07-21/drivers/net/wireless/rt2x00/rt2800lib.c:1095
rt2800_get_txwi_rxwi_size+0x19c/0x268 [rt2800lib]()
[ 1084.560000] Modules linked in: rt2800soc rt2800pci rt2800mmio
rt2800lib pppoe ppp_async iptable_nat rt2x00soc rt2x00pci rt2x00mmio
rt2x00lib pppox ppp_generic nf_nat_ipv4 nf_conntrack_ipv6
nf_conntrack_ipv4 mac80211 ipt_REJECT 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_reject_ipv4 nf_nat_masquerade_ipv4 nf_nat_ftp nf_nat nf_log_ipv4
nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_rtcache nf_conntrack_ftp
nf_conntrack iptable_raw iptable_mangle iptable_filter ip_tables
crc_itu_t crc_ccitt compat ip6t_REJECT nf_reject_ipv6 nf_log_ipv6
nf_log_common ip6table_raw ip6table_mangle ip6table_filter ip6_tables
x_tables eeprom_93cx6 leds_gpio gpio_button_hotplug
[ 1084.690000] CPU: 0 PID: 1087 Comm: iwinfo Not tainted 3.18.21 #45
[ 1084.710000] Stack : 00000000 00000000 00000000 00000000 803941f2
00000035 0000043f 00000000
832377f0 00000001 802e7914 80347143 0000043f 80393418
832377f0 8312f940
00000008 0000001c 00000001 80047498 00000003 8002406c
00000447 8312f940
802eae38 0083f7ac 00000000 00000000 00000000 00000000
00000000 00000000
00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
...
[ 1084.780000] Call Trace:
[ 1084.780000] [<80013e88>] show_stack+0x50/0x84
[ 1084.790000] [<80024174>] warn_slowpath_common+0x84/0xb4
[ 1084.800000] [<8002422c>] warn_slowpath_null+0x18/0x24
[ 1084.810000] [<830a4134>] rt2800_get_txwi_rxwi_size+0x19c/0x268 [rt2800lib]
[ 1084.820000]
[ 1084.830000] ---[ end trace ebcac4a9a3efbf63 ]---
Scanning not possible
-----
[1] http://pastebin.com/xKsQipf9
[2] http://pastebin.com/2g76qvfZ
[3] http://pastebin.com/KAx1Xit3
Cheers,
Piotr
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