#17032: kernel panic on RT-N13U rev.B1, running Barrier Breaker svn41548
-------------------------------+-------------------------------------
Reporter: braveheart_leo@… | Owner: developers
Type: defect | Status: new
Priority: normal | Milestone: Barrier Breaker (trunk)
Component: kernel | Version: Trunk
Resolution: | Keywords:
-------------------------------+-------------------------------------
Comment (by yousong):
Well, looks like there is deeper cause for this WARNING. I can still
trigger it with multiple `iw dev wlan0 scan` command using the minimal
config of the following:
{{{
config wifi-device radio0
option type mac80211
option channel 11
option hwmode 11g
option path '10180000.wmac'
option htmode HT20
config wifi-iface
option device radio0
option network lan
option mode ap
option ssid OpenWrt__t
option encryption none
}}}
Below is the output from TTL serial console. I may note that `iw dev
wlan0 scan` work fine.
{{{
root@OpenWrt:/# iw dev wlan0 scan >/dev/null
root@OpenWrt:/# iw dev wlan0 scan >/dev/null
root@OpenWrt:/# iw dev wlan0 scan >/dev/null
root@OpenWrt:/# iw dev wlan0 scan >/dev/null
root@OpenWrt:/# iw dev wlan0 scan >/dev/null
root@OpenWrt:/# iw dev wlan0 scan >/dev/null
root@OpenWrt:/# iw dev wlan0 scan >/dev/null
root@OpenWrt:/# iw dev wlan0 scan >/dev/null
root@OpenWrt:/# iw dev wlan0 scan >/dev/null
root@OpenWrt:/# iw dev wlan0 scan >/dev/null
[ 237.200000] ------------[ cut here ]------------
[ 237.210000] WARNING: at /home/yousong/trunk-openwrt/build_dir/target-
mipsel_24kec+dsp_uClibc-0.9.33.2/linux-ramips_mt7620a/compat-
wireless-2014-05-22/drivers/net/wireless/rt2x00/rt2800lib.c:1092
rt2800_conf_tx+0x3c8/0x494 [rt2800lib]()
[ 237.230000] Modules linked in: rt2800soc rt2800pci rt2800mmio rt2800lib
pppoe ppp_async iptable_nat rt2x00soc rt2x00pci rt2x00mmio rt2x00lib pppox
ppp_generic nf_nat_ipv4 nf_conntrack_ipv4 mac80211 ipt_MASQUERADE cfg80211
xt_time xt_tcpudp xt_tcpmss xt_string xt_statistic xt_state xt_recent
xt_nat xt_multiport xt_mark xt_mac xt_limit xt_length xt_hl xt_helper
xt_ecn xt_dscp xt_conntrack xt_connmark xt_connlimit xt_connbytes
xt_comment xt_TCPMSS xt_REDIRECT xt_LOG xt_HL xt_DSCP xt_CT xt_CLASSIFY
ts_kmp ts_fsm ts_bm slhc nf_nat_irc nf_nat_ftp nf_nat nf_defrag_ipv4
nf_conntrack_irc nf_conntrack_ftp iptable_raw iptable_mangle
iptable_filter ipt_REJECT ipt_ECN ip_tables crc_itu_t crc_ccitt compat
act_connmark act_skbedit act_mirred em_u32 cls_u32 cls_tcindex cls_flow
cls_route cls_fw sch_hfsc sch_ingress ledtrig_usbdev ip6t_REJECT
ip6table_raw ip6table_mangle ip6table_filter ip6_tables x_tables
nf_conntrack_ipv6 nf_conntrack nf_defrag_ipv6 ifb ipv6 eeprom_93cx6 arc4
crypto_blkcipher leds_gpio gpio_button_hotplug usbcore nls_base usb_common
[ 237.320000] CPU: 0 PID: 1412 Comm: iw Not tainted 3.10.49 #3
[ 237.330000] Stack : 00000000 00000000 00000000 00000000 80322eea
00000030 871b5ef8 871f7540
80283070 802d31fb 00000584 80322694 871b5ef8 871f7540 00000008
0000001c
00000001 8001f128 00000003 8001cb94 87173bd8 871f7540 802848fc
8725578c
00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
00000000 00000000 00000000 00000000 00000000 00000000 00000000
87255718
...
[ 237.360000] Call Trace:
[ 237.360000] [<8001225c>] show_stack+0x48/0x70
[ 237.370000] [<8001cc90>] warn_slowpath_common+0x78/0xa8
[ 237.370000] [<8001cd48>] warn_slowpath_null+0x18/0x24
[ 237.380000] [<87164078>] rt2800_conf_tx+0x3c8/0x494 [rt2800lib]
[ 237.390000]
[ 237.390000] ---[ end trace ec2f2867b8b7a57e ]---
root@OpenWrt:/#
}}}
--
Ticket URL: <https://dev.openwrt.org/ticket/17032#comment:5>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
_______________________________________________
openwrt-tickets mailing list
[email protected]
https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-tickets
