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From: Harshal Vora <harshal@amideeptech.com>
To: ath9k-devel@lists.ath9k.org
Subject: [ath9k-devel] Adhoc mode and chip reset issue with tp link wn721n/ath9k_htc drivers
Date: Sat, 29 Mar 2014 15:47:33 +0530	[thread overview]
Message-ID: <53369DBD.4060706@amideeptech.com> (raw)

Hi,

We are running tp link wn721n usb wifi adapter with atheros 9271 chipset 
on raspberry pi using kernel version 3.6.11
We run the physical interface wlan0 in adhoc mode and also create a 
virtual interface wlan0-mon0 from wlan0 which runs in monitor mode.
The USB chipset suddenly hangs or shuts down after running for sometime. 
Sometimes it runs for few minutes, sometimes for hours before this happens.
Sometimes this happens when a new node enters the adhoc network.
We are using babel on top of ad-hoc network to create a mesh like 
functionality.

Below are the logs from one of the device. Also when I try to unload the 
driver using modprobe -r, it looks like panic mode.
We are not using power save mode.


Mar 28 15:45:45 localhost kernel: [18268.650000] ath: phy0: Unable to 
reset channel (2452 Mhz) reset status -22
Mar 28 15:45:45 localhost kernel: [18268.670000] ath: phy0: Unable to 
set channel
Mar 28 15:45:46 localhost kernel: [18269.180000] ath: phy0: timeout 
(100000 us) on reg 0x7000: 0xfffffffb & 0x00000003 != 0x00000000
Mar 28 15:45:46 localhost kernel: [18269.180000] ath: phy0: Chip reset 
failed
Mar 28 15:45:46 localhost kernel: [18269.190000] ath: phy0: Unable to 
reset channel (2457 Mhz) reset status -22
Mar 28 15:45:46 localhost kernel: [18269.210000] ath: phy0: Unable to 
set channel
Mar 28 15:45:46 localhost kernel: [18269.720000] ath: phy0: timeout 
(100000 us) on reg 0x7000: 0xfffffffb & 0x00000003 != 0x00000000
Mar 28 15:45:46 localhost kernel: [18269.720000] ath: phy0: Chip reset 
failed
Mar 28 15:45:46 localhost kernel: [18269.730000] ath: phy0: Unable to 
reset channel (2462 Mhz) reset status -22
Mar 28 15:45:46 localhost kernel: [18269.750000] ath: phy0: Unable to 
set channel
Mar 28 15:45:47 localhost kernel: [18270.250000] ath: phy0: timeout 
(100000 us) on reg 0x7000: 0xfffffffb & 0x00000003 != 0x00000000
Mar 28 15:45:47 localhost kernel: [18270.260000] ath: phy0: Chip reset 
failed
Mar 28 15:45:47 localhost kernel: [18270.270000] ath: phy0: Unable to 
reset channel (2467 Mhz) reset status -22
Mar 28 15:45:47 localhost kernel: [18270.280000] ath: phy0: Unable to 
set channel
Mar 28 15:45:47 localhost kernel: [18270.790000] ath: phy0: timeout 
(100000 us) on reg 0x7000: 0xfffffffb & 0x00000003 != 0x00000000
Mar 28 15:45:47 localhost kernel: [18270.800000] ath: phy0: Chip reset 
failed
Mar 28 15:45:48 localhost kernel: [18270.810000] ath: phy0: Unable to 
reset channel (2472 Mhz) reset status -22
Mar 28 15:45:48 localhost kernel: [18270.820000] ath: phy0: Unable to 
set channel
Mar 28 15:45:48 localhost kernel: [18271.330000] ath: phy0: timeout 
(100000 us) on reg 0x7000: 0xfffffffb & 0x00000003 != 0x00000000
Mar 28 15:45:48 localhost kernel: [18271.340000] ath: phy0: Chip reset 
failed
Mar 28 15:45:48 localhost kernel: [18271.350000] ath: phy0: Unable to 
reset channel (2484 Mhz) reset status -22
Mar 28 15:45:48 localhost kernel: [18271.360000] ath: phy0: Unable to 
set channel
Mar 28 15:45:49 localhost kernel: [18271.870000] ath: phy0: timeout 
(100000 us) on reg 0x7000: 0xfffffffb & 0x00000003 != 0x00000000
Mar 28 15:45:49 localhost kernel: [18271.880000] ath: phy0: Chip reset 
failed
Mar 28 15:45:49 localhost kernel: [18271.890000] ath: phy0: Unable to 
reset channel (2412 Mhz) reset status -22
Mar 28 15:45:49 localhost kernel: [18271.900000] ath: phy0: Unable to 
set channel
Mar 28 15:45:49 localhost kernel: [18272.080000] wlan1: expiring 
inactive STA c0:4a:00:18:db:79
Mar 28 15:45:49 localhost kernel: [18272.080000] wlan1: moving STA 
c0:4a:00:18:db:79 to state 3
Mar 28 15:45:49 localhost kernel: [18272.090000] wlan1: moving STA 
c0:4a:00:18:db:79 to state 2
Mar 28 15:45:49 localhost kernel: [18272.090000] ath: phy0: Unable to 
remove station entry for: c0:4a:00:18:db:79
Mar 28 15:45:49 localhost kernel: [18272.110000] wlan1: moving STA 
c0:4a:00:18:db:79 to state 1
Mar 28 15:45:49 localhost kernel: [18272.110000] ieee80211 phy0: Removed 
STA c0:4a:00:18:db:79
Mar 28 15:45:49 localhost kernel: [18272.120000] ieee80211 phy0: 
Destroyed STA c0:4a:00:18:db:79
Mar 28 15:45:49 localhost kernel: [18272.120000] wlan1: expiring 
inactive STA 10:fe:ed:13:f2:10
Mar 28 15:45:49 localhost kernel: [18272.130000] wlan1: moving STA 
10:fe:ed:13:f2:10 to state 3
Mar 28 15:45:49 localhost kernel: [18272.130000] wlan1: moving STA 
10:fe:ed:13:f2:10 to state 2
Mar 28 15:45:49 localhost kernel: [18272.140000] ath: phy0: Unable to 
remove station entry for: 10:fe:ed:13:f2:10
Mar 28 15:45:49 localhost kernel: [18272.150000] wlan1: moving STA 
10:fe:ed:13:f2:10 to state 1
Mar 28 15:45:49 localhost kernel: [18272.160000] ieee80211 phy0: Removed 
STA 10:fe:ed:13:f2:10
Mar 28 15:45:49 localhost kernel: [18272.160000] ieee80211 phy0: 
Destroyed STA 10:fe:ed:13:f2:10
Mar 28 15:45:49 localhost kernel: [18272.170000] wlan1: expiring 
inactive STA 64:66:b3:18:c9:79
Mar 28 15:45:49 localhost kernel: [18272.170000] wlan1: moving STA 
64:66:b3:18:c9:79 to state 3
Mar 28 15:45:49 localhost kernel: [18272.180000] wlan1: moving STA 
64:66:b3:18:c9:79 to state 2
Mar 28 15:45:49 localhost kernel: [18272.180000] ath: phy0: Unable to 
remove station entry for: 64:66:b3:18:c9:79
Mar 28 15:45:49 localhost kernel: [18272.200000] wlan1: moving STA 
64:66:b3:18:c9:79 to state 1
Mar 28 15:45:49 localhost kernel: [18272.200000] ieee80211 phy0: Removed 
STA 64:66:b3:18:c9:79
Mar 28 15:45:49 localhost kernel: [18272.210000] ieee80211 phy0: 
Destroyed STA 64:66:b3:18:c9:79
Mar 28 15:45:49 localhost kernel: [18272.210000] wlan1: expiring 
inactive STA 00:1f:3c:0b:f0:5c
Mar 28 15:45:49 localhost kernel: [18272.220000] wlan1: moving STA 
00:1f:3c:0b:f0:5c to state 3
Mar 28 15:45:49 localhost kernel: [18272.220000] wlan1: moving STA 
00:1f:3c:0b:f0:5c to state 2
Mar 28 15:45:49 localhost kernel: [18272.230000] ath: phy0: Unable to 
remove station entry for: 00:1f:3c:0b:f0:5c
Mar 28 15:45:49 localhost kernel: [18272.240000] wlan1: moving STA 
00:1f:3c:0b:f0:5c to state 1
Mar 28 15:45:49 localhost kernel: [18272.250000] ieee80211 phy0: Removed 
STA 00:1f:3c:0b:f0:5c
Mar 28 15:45:49 localhost kernel: [18272.250000] ieee80211 phy0: 
Destroyed STA 00:1f:3c:0b:f0:5c
Mar 28 15:45:49 localhost kernel: [18272.260000] wlan1: expiring 
inactive STA 10:fe:ed:14:d5:c4
Mar 28 15:45:49 localhost kernel: [18272.260000] wlan1: moving STA 
10:fe:ed:14:d5:c4 to state 3
Mar 28 15:45:49 localhost kernel: [18272.270000] wlan1: moving STA 
10:fe:ed:14:d5:c4 to state 2
Mar 28 15:45:49 localhost kernel: [18272.270000] ath: phy0: Unable to 
remove station entry for: 10:fe:ed:14:d5:c4
Mar 28 15:45:49 localhost kernel: [18272.280000] wlan1: moving STA 
10:fe:ed:14:d5:c4 to state 1
Mar 28 15:45:49 localhost kernel: [18272.290000] ieee80211 phy0: Removed 
STA 10:fe:ed:14:d5:c4
Mar 28 15:45:49 localhost kernel: [18272.290000] ieee80211 phy0: 
Destroyed STA 10:fe:ed:14:d5:c4


Mar 28 15:46:19 localhost kernel: [18302.080000] wlan1: No active IBSS 
STAs - trying to scan for other IBSS networks with same SSID (merge)
Mar 28 15:46:19 localhost kernel: [18302.770000] ath: phy0: timeout 
(100000 us) on reg 0x7000: 0xfffffffb & 0x00000003 != 0x00000000
Mar 28 15:46:19 localhost kernel: [18302.780000] ath: phy0: Chip reset 
failed
Mar 28 15:46:19 localhost kernel: [18302.780000] ath: phy0: Unable to 
reset channel (2412 Mhz) reset status -22
Mar 28 15:46:19 localhost kernel: [18302.800000] ath: phy0: Unable to 
set channel
Mar 28 15:46:20 localhost kernel: [18303.310000] ath: phy0: timeout 
(100000 us) on reg 0x7000: 0xfffffffb & 0x00000003 != 0x00000000
Mar 28 15:46:20 localhost kernel: [18303.310000] ath: phy0: Chip reset 
failed
Mar 28 15:46:20 localhost kernel: [18303.320000] ath: phy0: Unable to 
reset channel (2417 Mhz) reset status -22
Mar 28 15:46:20 localhost kernel: [18303.330000] ath: phy0: Unable to 
set channel
Mar 28 15:46:20 localhost ntpdate[12205]: adjust time server 
199.102.46.73 offset -0.001353 sec
Mar 28 15:46:21 localhost kernel: [18303.850000] ath: phy0: timeout 
(100000 us) on reg 0x7000: 0xfffffffb & 0x00000003 != 0x00000000
Mar 28 15:46:21 localhost kernel: [18303.860000] ath: phy0: Chip reset 
failed
Mar 28 15:46:21 localhost kernel: [18303.870000] ath: phy0: Unable to 
reset channel (2422 Mhz) reset status -22
Mar 28 15:46:21 localhost kernel: [18303.880000] ath: phy0: Unable to 
set channel
Mar 28 15:46:21 localhost kernel: [18304.390000] ath: phy0: timeout 
(100000 us) on reg 0x7000: 0xfffffffb & 0x00000003 != 0x00000000
Mar 28 15:46:21 localhost kernel: [18304.400000] ath: phy0: Chip reset 
failed

Logs after modprobe -r ath9k_htc


Mar 29 07:05:21 localhost kernel: [73443.950000] ath: phy0: Failed to 
wakeup in 500us
Mar 29 07:05:21 localhost kernel: [73443.960000] ------------[ cut here 
]------------
Mar 29 07:05:21 localhost kernel: [73443.970000] WARNING: at 
drivers/net/wireless/ath/ath9k/hw.c:2079 ath9k_hw_setpower+0x1fc/0x600 
[ath9k_hw]()
Mar 29 07:05:21 localhost kernel: [73443.980000] Modules linked in: 
nfnetlink_log nfnetlink xt_state iptable_filter ipt_MASQUERADE 
iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 
ip_tables x_tables ath9k_htc(-) mac80211 led_class ath9k_common ath9k_hw 
ath 8192cu
Mar 29 07:05:21 localhost kernel: [73444.000000] Backtrace:
Mar 29 07:05:21 localhost kernel: [73444.000000] [<c0012a40>] 
(dump_backtrace+0x0/0x10c) from [<c053b610>] (dump_stack+0x18/0x1c)
Mar 29 07:05:21 localhost kernel: [73444.010000]  r6:bf0bad38 
r5:00000009 r4:00000000 r3:c079a4e0
Mar 29 07:05:21 localhost kernel: [73444.010000] [<c053b5f8>] 
(dump_stack+0x0/0x1c) from [<c00307c0>] (warn_slowpath_common+0x54/0x6c)
Mar 29 07:05:21 localhost kernel: [73444.020000] [<c003076c>] 
(warn_slowpath_common+0x0/0x6c) from [<c00307fc>] 
(warn_slowpath_null+0x24/0x2c)
Mar 29 07:05:21 localhost kernel: [73444.030000]  r8:0000704c 
r7:00020044 r6:00000000 r5:00000000 r4:bf10c339
Mar 29 07:05:21 localhost kernel: [73444.030000] r3:00000009
Mar 29 07:05:21 localhost kernel: [73444.040000] [<c00307d8>] 
(warn_slowpath_null+0x0/0x2c) from [<bf0bad38>] 
(ath9k_hw_setpower+0x1fc/0x600 [ath9k_hw])
Mar 29 07:05:21 localhost kernel: [73444.050000] [<bf0bab3c>] 
(ath9k_hw_setpower+0x0/0x600 [ath9k_hw]) from [<bf18cd6c>] 
(ath9k_htc_ps_wakeup+0x4c/0x50 [ath9k_htc])
Mar 29 07:05:21 localhost kernel: [73444.060000] [<bf18cd20>] 
(ath9k_htc_ps_wakeup+0x0/0x50 [ath9k_htc]) from [<bf18d4fc>] 
(ath9k_htc_configure_filter+0x78/0xd8 [ath9k_htc])
Mar 29 07:05:21 localhost kernel: [73444.070000]  r5:ee7a18d8 r4:ee7a10a0
Mar 29 07:05:21 localhost kernel: [73444.070000] [<bf18d484>] 
(ath9k_htc_configure_filter+0x0/0xd8 [ath9k_htc]) from [<bf132048>] 
(ieee80211_configure_filter+0x158/0x1b8 [mac80211])
Mar 29 07:05:21 localhost kernel: [73444.090000]  r6:ee7a0300 
r5:00000000 r4:00000000 r3:bf18d484
Mar 29 07:05:21 localhost kernel: [73444.090000] [<bf131ef0>] 
(ieee80211_configure_filter+0x0/0x1b8 [mac80211]) from [<bf13e69c>] 
(ieee80211_do_stop+0x174/0x658 [mac80211])
Mar 29 07:05:21 localhost kernel: [73444.100000]  r8:00000001 
r7:ed64a000 r6:ee7a0300 r5:00000004 r4:000001d0
Mar 29 07:05:21 localhost kernel: [73444.110000] [<bf13e528>] 
(ieee80211_do_stop+0x0/0x658 [mac80211]) from [<bf13eb98>] 
(ieee80211_stop+0x18/0x20 [mac80211])
Mar 29 07:05:21 localhost kernel: [73444.120000] [<bf13eb80>] 
(ieee80211_stop+0x0/0x20 [mac80211]) from [<c03fd2a4>] 
(__dev_close_many+0x90/0xd4)
Mar 29 07:05:21 localhost kernel: [73444.130000] [<c03fd214>] 
(__dev_close_many+0x0/0xd4) from [<c03fd3bc>] (dev_close_many+0x8c/0xf8)
Mar 29 07:05:21 localhost kernel: [73444.140000]  r5:ed64bdc0 r4:ed64bd24
Mar 29 07:05:21 localhost kernel: [73444.140000] [<c03fd330>] 
(dev_close_many+0x0/0xf8) from [<c03fd4ec>] 
(rollback_registered_many+0xc4/0x24c)
Mar 29 07:05:21 localhost kernel: [73444.150000]  r6:ed64bdc0 
r5:ee88c000 r4:ed64bd24
Mar 29 07:05:21 localhost kernel: [73444.150000] [<c03fd428>] 
(rollback_registered_many+0x0/0x24c) from [<c03fd694>] 
(unregister_netdevice_many+0x20/0x68)
Mar 29 07:05:21 localhost kernel: [73444.160000] [<c03fd674>] 
(unregister_netdevice_many+0x0/0x68) from [<bf13e24c>] 
(ieee80211_remove_interfaces+0x98/0xd8 [mac80211])
Mar 29 07:05:21 localhost kernel: [73444.170000]  r4:ee7a0918 r3:00000001
Mar 29 07:05:21 localhost kernel: [73444.180000] [<bf13e1b4>] 
(ieee80211_remove_interfaces+0x0/0xd8 [mac80211]) from [<bf131118>] 
(ieee80211_unregister_hw+0x48/0xec [mac80211])
Mar 29 07:05:21 localhost kernel: [73444.190000] [<bf1310d0>] 
(ieee80211_unregister_hw+0x0/0xec [mac80211]) from [<bf191094>] 
(ath9k_htc_disconnect_device+0x58/0x98 [ath9k_htc])
Mar 29 07:05:21 localhost kernel: [73444.200000]  r5:ee5fcc00 r4:ee7a10a0
Mar 29 07:05:21 localhost kernel: [73444.200000] [<bf19103c>] 
(ath9k_htc_disconnect_device+0x0/0x98 [ath9k_htc]) from [<bf1877d4>] 
(ath9k_htc_hw_deinit+0x18/0x1c [ath9k_htc])
Mar 29 07:05:21 localhost kernel: [73444.220000]  r6:ef3ee468 
r5:ef3e0220 r4:ee917540 r3:ee5c1080
Mar 29 07:05:21 localhost kernel: [73444.220000] [<bf1877bc>] 
(ath9k_htc_hw_deinit+0x0/0x1c [ath9k_htc]) from [<bf188de8>] 
(ath9k_hif_usb_disconnect+0x58/0x12c [ath9k_htc])
Mar 29 07:05:21 localhost kernel: [73444.230000] [<bf188d90>] 
(ath9k_hif_usb_disconnect+0x0/0x12c [ath9k_htc]) from [<c032f188>] 
(usb_unbind_interface+0x44/0x118)
Mar 29 07:05:21 localhost kernel: [73444.240000]  r8:c000f204 
r7:ef3ee400 r6:ef3e0200 r5:bf198d3c r4:ef3e0220
Mar 29 07:05:21 localhost kernel: [73444.250000] [<c032f144>] 
(usb_unbind_interface+0x0/0x118) from [<c02c2864>] 
(__device_release_driver+0x78/0xc8)
Mar 29 07:05:21 localhost kernel: [73444.260000]  r7:bf198d3c 
r6:ef3e0254 r5:bf198d3c r4:ef3e0220
Mar 29 07:05:21 localhost kernel: [73444.260000] [<c02c27ec>] 
(__device_release_driver+0x0/0xc8) from [<c02c32ec>] 
(driver_detach+0xe4/0xf0)
Mar 29 07:05:21 localhost kernel: [73444.270000]  r5:ed64a000 r4:ef3e0220
Mar 29 07:05:21 localhost kernel: [73444.270000] [<c02c3208>] 
(driver_detach+0x0/0xf0) from [<c02c2628>] (bus_remove_driver+0x94/0xfc)
Mar 29 07:05:21 localhost kernel: [73444.280000]  r7:00000080 
r6:c07b7abc r5:bf198d3c r4:00000000
Mar 29 07:05:21 localhost kernel: [73444.290000] [<c02c2594>] 
(bus_remove_driver+0x0/0xfc) from [<c02c3908>] (driver_unregister+0x58/0x78)
Mar 29 07:05:21 localhost kernel: [73444.300000]  r6:ed64a000 
r5:bf198d3c r4:00000000 r3:00000008
Mar 29 07:05:21 localhost kernel: [73444.300000] [<c02c38b0>] 
(driver_unregister+0x0/0x78) from [<c032eba8>] (usb_deregister+0x64/0xf8)
Mar 29 07:05:21 localhost kernel: [73444.310000]  r5:bf198d0c r4:bf198d3c
Mar 29 07:05:21 localhost kernel: [73444.310000] [<c032eb44>] 
(usb_deregister+0x0/0xf8) from [<bf18971c>] 
(ath9k_hif_usb_exit+0x14/0x1c [ath9k_htc])
Mar 29 07:05:21 localhost kernel: [73444.320000]  r8:c000f204 
r7:00000080 r6:ed64a000 r5:01ccc788 r4:bf199690
Mar 29 07:05:21 localhost kernel: [73444.330000] r3:bf1961c4
Mar 29 07:05:21 localhost kernel: [73444.330000] [<bf189708>] 
(ath9k_hif_usb_exit+0x0/0x1c [ath9k_htc]) from [<bf1961d4>] 
(ath9k_htc_exit+0x10/0x20 [ath9k_htc])
Mar 29 07:05:21 localhost kernel: [73444.340000] [<bf1961c4>] 
(ath9k_htc_exit+0x0/0x20 [ath9k_htc]) from [<c00698e0>] 
(sys_delete_module+0x1e4/0x2a0)
Mar 29 07:05:21 localhost kernel: [73444.350000] [<c00696fc>] 
(sys_delete_module+0x0/0x2a0) from [<c000f080>] (ret_fast_syscall+0x0/0x30)
Mar 29 07:05:21 localhost kernel: [73444.360000]  r7:00000081 
r6:00000001 r5:beda2a48 r4:01ccc538
Mar 29 07:05:21 localhost kernel: [73444.360000] ---[ end trace 
6bff6510f53a402b ]---
Mar 29 07:05:21 localhost kernel: [73444.400000] ath: phy0: Failed to 
wakeup in 500us
Mar 29 07:05:21 localhost kernel: [73444.410000] ath: phy0: Unable to 
remove interface at idx: 0
Mar 29 07:05:21 localhost kernel: [73444.460000] ath: phy0: Failed to 
wakeup in 500us
Mar 29 07:05:21 localhost kernel: [73444.500000] ath: phy0: Failed to 
wakeup in 500us
Mar 29 07:05:21 localhost kernel: [73444.540000] ath: phy0: Failed to 
wakeup in 500us
Mar 29 07:05:22 localhost kernel: [73445.060000] ath: phy0: timeout 
(100000 us) on reg 0x7000: 0xfffffffb & 0x00000003 != 0x00000000
Mar 29 07:05:22 localhost kernel: [73445.570000] ath: phy0: timeout 
(100000 us) on reg 0x7000: 0xfffffffb & 0x00000003 != 0x00000000
Mar 29 07:05:22 localhost kernel: [73445.590000] device wlan1-mon0 left 
promiscuous mode

             reply	other threads:[~2014-03-29 10:17 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-03-29 10:17 Harshal Vora [this message]
2014-03-30  7:31 ` [ath9k-devel] Adhoc mode and chip reset issue with tp link wn721n/ath9k_htc drivers Oleksij Rempel
2014-03-31  5:41   ` Harshal Vora
2014-03-31  7:19     ` Oleksij Rempel
2014-03-31  8:06       ` Harshal Vora
2014-03-31  8:22         ` Oleksij Rempel
2014-03-31  9:10           ` Harshal Vora
2014-04-04 12:37             ` Harshal Vora
2014-04-04 12:59               ` Oleksij Rempel
2014-04-19 11:49                 ` Harshal Vora
2014-04-19 19:42                   ` Oleksij Rempel

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