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Opened 2 years ago

Last modified 2 years ago

#21637 new defect

Brcm6358 WiFi intermittent in trunk

Reported by: anonymous Owned by: developers
Priority: normal Milestone:
Component: packages Version: Trunk
Keywords: Cc:

Description

I arrived home, sat down and switched on WiFi on my tablet. I got 2 pages up on Chrome before wifi was lost. I never left my seat and the router is 4m away.

Any idea on how to get more debugging info or how to investigate further?

From my HG556a running Trunk r48277 syslog:

Mon Jan 18 01:24:02 2016 daemon.info hostapd: wlan0-1: STA 98:52:b1:a5:09:ab IEEE 802.11: associated (aid 1)
Mon Jan 18 01:24:02 2016 daemon.info hostapd: wlan0-1: STA 98:52:b1:a5:09:ab RADIUS: starting accounting session 569B7855-00000008
Mon Jan 18 01:24:02 2016 daemon.info hostapd: wlan0-1: STA 98:52:b1:a5:09:ab WPA: pairwise key handshake completed (RSN)
Mon Jan 18 01:24:07 2016 daemon.info dnsmasq-dhcp[2710]: DHCPDISCOVER(br-lan) 98:52:b1:a5:09:ab
Mon Jan 18 01:24:07 2016 daemon.info dnsmasq-dhcp[2710]: DHCPOFFER(br-lan) 192.168.1.149 98:52:b1:a5:09:ab
Mon Jan 18 01:24:07 2016 daemon.info dnsmasq-dhcp[2710]: DHCPREQUEST(br-lan) 192.168.1.149 98:52:b1:a5:09:ab
Mon Jan 18 01:24:07 2016 daemon.info dnsmasq-dhcp[2710]: DHCPACK(br-lan) 192.168.1.149 98:52:b1:a5:09:ab android-bac8f70f88cc055a
Mon Jan 18 01:26:13 2016 daemon.info hostapd: wlan0-1: STA 98:52:b1:a5:09:ab IEEE 802.11: disassociated
Mon Jan 18 01:26:14 2016 daemon.info hostapd: wlan0-1: STA 98:52:b1:a5:09:ab IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Mon Jan 18 01:26:17 2016 daemon.info hostapd: wlan0-1: STA 98:52:b1:a5:09:ab IEEE 802.11: authenticated
Mon Jan 18 01:26:17 2016 daemon.info hostapd: wlan0-1: STA 98:52:b1:a5:09:ab IEEE 802.11: associated (aid 1)
Mon Jan 18 01:26:17 2016 kern.warn kernel: [48466.726478] ------------[ cut here ]------------
Mon Jan 18 01:26:17 2016 kern.warn kernel: [48466.731663] WARNING: CPU: 0 PID: 7567 at /home/mac/openwrt/trunk/build_dir/target-mips_mips32_musl-1.1.11/linux-brcm63xx_smp/compat-wireless-2016-01-10/net/mac80211/agg-tx.c:763 ieee80211_start_tx_ba_cb+0xac/0x120 [mac80211]()
Mon Jan 18 01:26:17 2016 kern.warn kernel: [48466.752689] Modules linked in: ath9k ath9k_htc ath9k_common rt2800usb rt2800lib rt2500usb pppoe ppp_async option ipw iptable_nat ip6table_nat cdc_mbim carl9170 ath9k_hw ath zd1211rw usb_wwan rtl8187 rt2x00usb rt2x00lib rndis_host qmi_wwan pppox ppp_generic nf_nat_ipv6 nf_nat_ipv4 nf_conntrack_ipv6 nf_conntrack_ipv4 mac80211 ipt_REJECT ipt_MASQUERADE huawei_cdc_ncm ftdi_sio cfg80211 cdc_subset cdc_ncm cdc_ether cdc_eem belkin_sa xt_time xt_tcpudp xt_tcpmss xt_stMon Jan 18 01:26:17 2016 kern.warn kernel: [48466.974902] CPU: 0 PID: 7567 Comm: kworker/u2:1 Not tainted 4.1.15 #5
Mon Jan 18 01:26:17 2016 kern.warn kernel: [48466.981761] Workqueue: phy0 ieee80211_ibss_leave [mac80211]
Mon Jan 18 01:26:17 2016 kern.warn kernel: [48466.987525] Stack : 8298e764 829c9dd8 829c9e84 83122198 00000088 80057b5c 80332090 00001d8f
Mon Jan 18 01:26:17 2016 kern.warn kernel: [48466.987525] 804f3fb0 829c9dd8 80360198 8248fd14 00000088 80056170 8033bf40 00000003
Mon Jan 18 01:26:17 2016 kern.warn kernel: [48466.987525] 8298e764 829c9dd8 8248fd14 8248fd34 00000088 80046378 00000000 8248fd20
Mon Jan 18 01:26:17 2016 kern.warn kernel: [48466.987525] 00000000 801a10d0 00000000 00000000 00000000 00000000 00000000 00000000
Mon Jan 18 01:26:17 2016 kern.warn kernel: [48466.987525] 70687930 00000000 00000000 00000000 00000000 00000000 8332a100 8382f300
Mon Jan 18 01:26:17 2016 kern.warn kernel: [48466.987525] ...
Mon Jan 18 01:26:17 2016 kern.warn kernel: [48467.024342] Call Trace:
Mon Jan 18 01:26:17 2016 kern.warn kernel: [48467.026969] [<80024d98>] show_stack+0x50/0x84
Mon Jan 18 01:26:17 2016 kern.warn kernel: [48467.031737] [<80032718>] warn_slowpath_common+0xa0/0xd0
Mon Jan 18 01:26:17 2016 kern.warn kernel: [48467.037187] [<800327d0>] warn_slowpath_null+0x18/0x24
Mon Jan 18 01:26:17 2016 kern.warn kernel: [48467.042783] [<8298e764>] ieee80211_start_tx_ba_cb+0xac/0x120 [mac80211]
Mon Jan 18 01:26:17 2016 kern.warn kernel: [48467.049796] [<82993964>] ieee80211_ibss_leave+0xc44/0x1874 [mac80211]
Mon Jan 18 01:26:17 2016 kern.warn kernel: [48467.056619] [<800507ac>] pick_next_task_fair+0xec/0x160
Mon Jan 18 01:26:17 2016 kern.warn kernel: [48467.062021]
Mon Jan 18 01:26:17 2016 kern.warn kernel: [48467.063536] ---[ end trace 853bd6ce95e2b93a ]---
Mon Jan 18 01:26:17 2016 daemon.info hostapd: wlan0-1: STA 98:52:b1:a5:09:ab RADIUS: starting accounting session 569B7855-00000009
Mon Jan 18 01:26:17 2016 daemon.info hostapd: wlan0-1: STA 98:52:b1:a5:09:ab WPA: pairwise key handshake completed (RSN)
Mon Jan 18 01:26:18 2016 daemon.info dnsmasq-dhcp[2710]: DHCPREQUEST(br-lan) 192.168.1.149 98:52:b1:a5:09:ab
Mon Jan 18 01:26:18 2016 daemon.info dnsmasq-dhcp[2710]: DHCPACK(br-lan) 192.168.1.149 98:52:b1:a5:09:ab android-bac8f70f88cc055a

Attachments (0)

Change History (2)

comment:1 Changed 2 years ago by anonymous

This problem persists and is readily reproduced. It does not always result in a Syslog call trace.

comment:2 Changed 2 years ago by anonymous

I have this problem with trunk. Your router has an Atheros AR9223 WiFi radio. It uses the Ath9k driver. There are known problems with the driver. You may do better with a rev prior to July, 2015.

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