Hi,
I have an issue with my 8822cu based usb device on >= 6.6 Linux with AP
mode. Using latest changes AP-mode seems to work fairly good. But when
enabling/disabling it I seems to always get below. It sometimes happens
without using AP-mode also, when for example disconnection happens due
to bad connection. Any ideas what might be causing this? Please also let
me know if you want additional debugging logs etc.
BR Petter
```
[ 1429.886683] WARNING: CPU: 0 PID: 9 at net/wireless/core.h:231
disconnect_work+0xb8/0x144 [cfg80211]
[ 1429.898367] Modules linked in: rtw88_8822cu rtw88_8822c rtw88_usb
rtw88_core mac80211 libarc4 cfg80211 btusb btrtl btintel btbcm btmtk
imx_sdma ip_tables x_tables
[ 1429.913362] CPU: 0 PID: 9 Comm: kworker/0:1 Not tainted
6.6.51-00141-ga1649b6f8ed6 #7
[ 1429.921228] Hardware name: Freescale i.MX6 SoloX (Device Tree)
[ 1429.927082] Workqueue: events disconnect_work [cfg80211]
[ 1429.933556] unwind_backtrace from show_stack+0x10/0x14
[ 1429.938833] show_stack from dump_stack_lvl+0x58/0x70
[ 1429.943922] dump_stack_lvl from __warn+0x70/0x1c0
[ 1429.948759] __warn from warn_slowpath_fmt+0x16c/0x294
[ 1429.953939] warn_slowpath_fmt from disconnect_work+0xb8/0x144
[cfg80211]
[ 1429.961935] disconnect_work [cfg80211] from
process_one_work+0x204/0x620
[ 1429.969851] process_one_work from worker_thread+0x1b0/0x474
[ 1429.975549] worker_thread from kthread+0x10c/0x12c
[ 1429.980461] kthread from ret_from_fork+0x14/0x24
[ 1429.985194] Exception stack(0xf0855fb0 to 0xf0855ff8)
[ 1429.990268] 5fa0: 00000000
00000000 00000000 00000000
[ 1429.998466] 5fc0: 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
[ 1430.006662] 5fe0: 00000000 00000000 00000000 00000000 00000013
00000000
[ 1430.014300] irq event stamp: 1984773
[ 1430.017924] hardirqs last enabled at (1984781): [<c019e8e0>]
console_unlock+0x134/0x164
[ 1430.026190] hardirqs last disabled at (1984796): [<c019e8cc>]
console_unlock+0x120/0x164
[ 1430.034412] softirqs last enabled at (1984794): [<c012f3b4>]
handle_softirqs+0x2ac/0x49c
[ 1430.042695] softirqs last disabled at (1984789): [<c012f74c>]
__irq_exit_rcu+0x154/0x194
[ 1430.050941] ---[ end trace 0000000000000000 ]---
[ 1429.881452] ------------[ cut here ]------------
[ 1429.886683] WARNING: CPU: 0 PID: 9 at net/wireless/core.h:231
disconnect_work+0xb8/0x144 [cfg80211]
[ 1429.898367] Modules linked in: rtw88_8822cu rtw88_8822c rtw88_usb
rtw88_core mac80211 libarc4 cfg80211 btusb btrtl btintel btbcm btmtk
imx_sdma ip_tables x_tables
[ 1429.913362] CPU: 0 PID: 9 Comm: kworker/0:1 Not tainted
6.6.51-00141-ga1649b6f8ed6 #7
[ 1429.921228] Hardware name: Freescale i.MX6 SoloX (Device Tree)
[ 1429.927082] Workqueue: events disconnect_work [cfg80211]
[ 1429.933556] unwind_backtrace from show_stack+0x10/0x14
[ 1429.938833] show_stack from dump_stack_lvl+0x58/0x70
[ 1429.943922] dump_stack_lvl from __warn+0x70/0x1c0
[ 1429.948759] __warn from warn_slowpath_fmt+0x16c/0x294
[ 1429.953939] warn_slowpath_fmt from disconnect_work+0xb8/0x144
[cfg80211]
[ 1429.961935] disconnect_work [cfg80211] from
process_one_work+0x204/0x620
[ 1429.969851] process_one_work from worker_thread+0x1b0/0x474
[ 1429.975549] worker_thread from kthread+0x10c/0x12c
[ 1429.980461] kthread from ret_from_fork+0x14/0x24
[ 1429.985194] Exception stack(0xf0855fb0 to 0xf0855ff8)
[ 1429.990268] 5fa0: 00000000
00000000 00000000 00000000
[ 1429.998466] 5fc0: 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
[ 1430.006662] 5fe0: 00000000 00000000 00000000 00000000 00000013
00000000
[ 1430.014300] irq event stamp: 1984773
[ 1430.017924] hardirqs last enabled at (1984781): [<c019e8e0>]
console_unlock+0x134/0x164
[ 1430.026190] hardirqs last disabled at (1984796): [<c019e8cc>]
console_unlock+0x120/0x164
[ 1430.034412] softirqs last enabled at (1984794): [<c012f3b4>]
handle_softirqs+0x2ac/0x49c
[ 1430.042695] softirqs last disabled at (1984789): [<c012f74c>]
__irq_exit_rcu+0x154/0x194
[ 1430.050941] ---[ end trace 0000000000000000 ]---
[ 1430.305675] ------------[ cut here ]------------
[ 1430.310778] WARNING: CPU: 0 PID: 9 at net/wireless/core.h:246
cfg80211_beaconing_iface_active+0x124/0x144 [cfg80211]
[ 1430.322835] Modules linked in: rtw88_8822cu rtw88_8822c rtw88_usb
rtw88_core mac80211 libarc4 cfg80211 btusb btrtl btintel btbcm btmtk
imx_sdma ip_tables x_tables
[ 1430.338134] CPU: 0 PID: 9 Comm: kworker/0:1 Tainted: G W
6.6.51-00141-ga1649b6f8ed6 #7
[ 1430.347480] Hardware name: Freescale i.MX6 SoloX (Device Tree)
[ 1430.353333] Workqueue: events disconnect_work [cfg80211]
[ 1430.359806] unwind_backtrace from show_stack+0x10/0x14
[ 1430.365085] show_stack from dump_stack_lvl+0x58/0x70
[ 1430.370173] dump_stack_lvl from __warn+0x70/0x1c0
[ 1430.375009] __warn from warn_slowpath_fmt+0x16c/0x294
[ 1430.380190] warn_slowpath_fmt from
cfg80211_beaconing_iface_active+0x124/0x144 [cfg80211]
[ 1430.389659] cfg80211_beaconing_iface_active [cfg80211] from
disconnect_work+0x100/0x144 [cfg80211]
[ 1430.400855] disconnect_work [cfg80211] from
process_one_work+0x204/0x620
[ 1430.408749] process_one_work from worker_thread+0x1b0/0x474
[ 1430.414448] worker_thread from kthread+0x10c/0x12c
[ 1430.419361] kthread from ret_from_fork+0x14/0x24
[ 1430.424099] Exception stack(0xf0855fb0 to 0xf0855ff8)
[ 1430.429173] 5fa0: 00000000
00000000 00000000 00000000
[ 1430.437373] 5fc0: 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
[ 1430.445571] 5fe0: 00000000 00000000 00000000 00000000 00000013
00000000
[ 1430.452992] irq event stamp: 1985081
[ 1430.456613] hardirqs last enabled at (1985089): [<c019e8e0>]
console_unlock+0x134/0x164
[ 1430.464878] hardirqs last disabled at (1985110): [<c019e8cc>]
console_unlock+0x120/0x164
[ 1430.473098] softirqs last enabled at (1985108): [<c012f3b4>]
handle_softirqs+0x2ac/0x49c
[ 1430.481324] softirqs last disabled at (1985097): [<c012f74c>]
__irq_exit_rcu+0x154/0x194
[ 1430.489554] ---[ end trace 0000000000000000 ]---
[ 1430.305675] ------------[ cut here ]------------
[ 1430.310778] WARNING: CPU: 0 PID: 9 at net/wireless/core.h:246
cfg80211_beaconing_iface_active+0x124/0x144 [cfg80211]
[ 1430.322835] Modules linked in: rtw88_8822cu rtw88_8822c rtw88_usb
rtw88_core mac80211 libarc4 cfg80211 btusb btrtl btintel btbcm btmtk
imx_sdma ip_tables x_tables
[ 1430.338134] CPU: 0 PID: 9 Comm: kworker/0:1 Tai[ 1430.529638]
------------[ cut here ]------------
nted: G W 6.6.51-[ 1430.536236] WARNING: CPU: 0 PID: 9
at net/wireless/core.h:239 disconnect_work+0xe4/0x144 [cfg80211]
00141-ga1649b6f8ed6 #7
[ 1430.34[ 1430.548209] Modules linked in: rtw88_8822cu rtw88_8822c
rtw88_usb rtw88_core mac80211 libarc4 cfg80211 btusb btrtl btintel btbcm
btmtk imx_sdma ip_tables x_tables
7480] Hardware name: Freescale i.[ 1430.565496] CPU: 0 PID: 9 Comm:
kworker/0:1 Tainted: G W 6.6.51-00141-ga1649b6f8ed6 #7
[ 1430.577478] Hardware name: Freescale i.MX6 SoloX (Device Tree)
[ 1430.583331] Workqueue: events disconnect_work [cfg80211]
[ 1430.589790] unwind_backtrace from show_stack+0x10/0x14
[ 1430.595069] show_stack from dump_stack_lvl+0x58/0x70
[ 1430.600157] dump_stack_lvl from __warn+0x70/0x1c0
[ 1430.604994] __warn from warn_slowpath_fmt+0x16c/0x294
[ 1430.610177] warn_slowpath_fmt from disconnect_work+0xe4/0x144
[cfg80211]
[ 1430.618095] disconnect_work [cfg80211] from
process_one_work+0x204/0x620
[ 1430.625989] process_one_work from worker_thread+0x1b0/0x474
[ 1430.631687] worker_thread from kthread+0x10c/0x12c
[ 1430.636602] kthread from ret_from_fork+0x14/0x24
[ 1430.641335] Exception stack(0xf0855fb0 to 0xf0855ff8)
[ 1430.646412] 5fa0: 00000000
00000000 00000000 00000000
[ 1430.654610] 5fc0: 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
[ 1430.662807] 5fe0: 00000000 00000000 00000000 00000000 00000013
00000000
MX6 SoloX (Device Tree)
[ 1430.3[ 1430.670230] irq event stamp: 1985387
53333] Workqueue: events disconne[ 1430.676059] hardirqs last enabled
at (1985407): [<c019e8e0>] console_unlock+0x134/0x164
ct_work [cfg80211]
[ 1430.359806[ 1430.686982] hardirqs last disabled at (1985416):
[<c019e8cc>] console_unlock+0x120/0x164
] unwind_backtrace from show_sta[ 1430.697999] softirqs last enabled
at (1985404): [<c012f3b4>] handle_softirqs+0x2ac/0x49c
ck+0x10/0x14
[ 1430.365085] sho[ 1430.709105] softirqs last disabled at (1985395):
[<c012f74c>] __irq_exit_rcu+0x154/0x194
w_stack from dump_stack_lvl+0x58/[ 1430.720445] ---[ end trace
0000000000000000 ]---
0x70
[ 1430.370173] dump_stack_lvl from __warn+0x70/0x1c0
[ 1430.375009] __warn from warn_slowpath_fmt+0x16c/0x294
[ 1430.380190] warn_slowpath_fmt from
cfg80211_beaconing_iface_active+0x124/0x144 [cfg80211]
[ 1430.389659] cfg80211_beaconing_iface_active [cfg80211] from
disconnect_work+0x100/0x144 [cfg80211]
[ 1430.400855] disconnect_work [cfg802[ 1430.757591] ------------[ cut
here ]------------
11] from process_one_work+0x204/0[ 1430.763348] WARNING: CPU: 0 PID: 9
at net/wireless/core.h:231 is_wiphy_all_set_reg_flag+0xb4/0x144
[cfg80211]
x620
[ 1430.408749] process_one[ 1430.776198] Modules linked in:
rtw88_8822cu rtw88_8822c rtw88_usb rtw88_core mac80211 libarc4 cfg80211
btusb btrtl btintel btbcm btmtk imx_sdma ip_tables x_tables
_work from worker_thread+0x1b0/0x[ 1430.793594] CPU: 0 PID: 9 Comm:
kworker/0:1 Tainted: G W 6.6.51-00141-ga1649b6f8ed6 #7
[ 1430.805471] Hardware name: Freescale i.MX6 SoloX (Device Tree)
[ 1430.811324] Workqueue: events disconnect_work [cfg80211]
[ 1430.817785] unwind_backtrace from show_stack+0x10/0x14
[ 1430.823062] show_stack from dump_stack_lvl+0x58/0x70
[ 1430.828150] dump_stack_lvl from __warn+0x70/0x1c0
[ 1430.832986] __warn from warn_slowpath_fmt+0x16c/0x294
[ 1430.838167] warn_slowpath_fmt from
is_wiphy_all_set_reg_flag+0xb4/0x144 [cfg80211]
[ 1430.846957] is_wiphy_all_set_reg_flag [cfg80211] from
regulatory_hint_disconnect+0xc/0xdc [cfg80211]
[ 1430.858313] regulatory_hint_disconnect [cfg80211] from
disconnect_work+0x130/0x144 [cfg80211]
[ 1430.869050] disconnect_work [cfg80211] from
process_one_work+0x204/0x620
[ 1430.876943] process_one_work from worker_thread+0x1b0/0x474
[ 1430.882642] worker_thread from kthread+0x10c/0x12c
[ 1430.887554] kthread from ret_from_fork+0x14/0x24
[ 1430.892290] Exception stack(0xf0855fb0 to 0xf0855ff8)
[ 1430.897364] 5fa0: 00000000
00000000 00000000 00000000
[ 1430.905561] 5fc0: 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
[ 1430.913760] 5fe0: 00000000 00000000 00000000 00000000 00000013
00000000
474
[ 1430.414448] worker_threa[ 1430.921569] irq event stamp: 1985873
d from kthread+0x10c/0x12c
[ 143[ 1430.927055] hardirqs last enabled at (1985911): [<c019e8e0>]
console_unlock+0x134/0x164
0.419361] kthread from ret_from_[ 1430.938018] hardirqs last disabled
at (1985920): [<c019e8cc>] console_unlock+0x120/0x164
fork+0x14/0x24
[ 1430.424099] Ex[ 1430.949023] softirqs last enabled at (1985908):
[<c012f3b4>] handle_softirqs+0x2ac/0x49c
ception stack(0xf0855fb0 to 0xf08[ 1430.959991] softirqs last disabled
at (1985881): [<c012f74c>] __irq_exit_rcu+0x154/0x194
55ff8)
[ 1430.429173] 5fa0: [ 1430.970888] ---[ end trace 0000000000000000
]---
00000000 00000000 00000000 00000000
[ 1430.437373] 5fc0: 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
[ 1430.445571] 5fe0: 00000000 00000000 00000000 00000000 00000013
00000000
[ 1430.452992] irq event stamp: 1985081
[ 1430.456613] hardirqs last enabled at (1985089): [<c019e8e0>]
console_unlock+0x134/0x164
[ 1430.464878] hardirqs last disabled a[ 1431.012846] ------------[ cut
here ]------------
t (1985110): [<c019e8cc>] console[ 1431.019064] WARNING: CPU: 0 PID: 9
at net/wireless/core.h:239 is_wiphy_all_set_reg_flag+0x134/0x144
[cfg80211]
_unlock+0x120/0x164
[ 1430.47309[ 1431.031956] Modules linked in: rtw88_8822cu rtw88_8822c
rtw88_usb rtw88_core mac80211 libarc4 cfg80211 btusb btrtl btintel btbcm
btmtk imx_sdma ip_tables x_tables
8] softirqs last enabled at (198[ 1431.049154] CPU: 0 PID: 9 Comm:
kworker/0:1 Tainted: G W 6.6.51-00141-ga1649b6f8ed6 #7
[ 1431.061186] Hardware name: Freescale i.MX6 SoloX (Device Tree)
[ 1431.067039] Workqueue: events disconnect_work [cfg80211]
[ 1431.073498] unwind_backtrace from show_stack+0x10/0x14
[ 1431.078776] show_stack from dump_stack_lvl+0x58/0x70
[ 1431.083865] dump_stack_lvl from __warn+0x70/0x1c0
[ 1431.088701] __warn from warn_slowpath_fmt+0x16c/0x294
[ 1431.093883] warn_slowpath_fmt from
is_wiphy_all_set_reg_flag+0x134/0x144 [cfg80211]
[ 1431.102757] is_wiphy_all_set_reg_flag [cfg80211] from
regulatory_hint_disconnect+0xc/0xdc [cfg80211]
[ 1431.114098] regulatory_hint_disconnect [cfg80211] from
disconnect_work+0x130/0x144 [cfg80211]
[ 1431.124831] disconnect_work [cfg80211] from
process_one_work+0x204/0x620
[ 1431.132724] process_one_work from worker_thread+0x1b0/0x474
[ 1431.138423] worker_thread from kthread+0x10c/0x12c
[ 1431.143335] kthread from ret_from_fork+0x14/0x24
[ 1431.148070] Exception stack(0xf0855fb0 to 0xf0855ff8)
[ 1431.153144] 5fa0: 00000000
00000000 00000000 00000000
[ 1431.161341] 5fc0: 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
[ 1431.169539] 5fe0: 00000000 00000000 00000000 00000000 00000013
00000000
5108): [<c012f3b4>] handle_softir[ 1431.176768] irq event stamp: 1986265
qs+0x2ac/0x49c
[ 1430.481324] so[ 1431.182674] hardirqs last enabled at (1986275):
[<c019e8e0>] console_unlock+0x134/0x164
ftirqs last disabled at (1985097)[ 1431.193819] hardirqs last disabled
at (1986284): [<c019e8cc>] console_unlock+0x120/0x164
: [<c012f74c>] __irq_exit_rcu+0x1[ 1431.205066] softirqs last enabled
at (1986314): [<c012f3b4>] handle_softirqs+0x2ac/0x49c
54/0x194
[ 1430.489554] ---[ end[ 1431.215769] softirqs last disabled at
(1986293): [<c012f74c>] __irq_exit_rcu+0x154/0x194
trace 0000000000000000 ]---
[ 1[ 1431.226678] ---[ end trace 0000000000000000 ]---
430.529638] ------------[ cut here ]------------
[ 1430.536236] WARNING: CPU: 0 PID: 9 at net/wireless/core.h:239
disconnect_work+0xe4/0x144 [cfg80211]
[ 1430.548209] Modules linked in: rtw88_8822cu rtw88_8822c rtw88_usb
rtw88_core mac80211 libarc4 cfg80211 btusb btrtl btintel btbcm btmtk
imx_sdma ip_tables x_tables
[ 1430.565496] CPU: 0 PID: 9 Comm: kworker/0:1 Tainted: G W
6.6.51-00141-ga1649b6f8ed6 #7
[ 1430.577478] Hardware name: Freescale i.MX6 SoloX (Device Tree)
[ 1430.583331] Workqueue: events disconnect_work [cfg80211]
[ 1430.589790] unwind_backtrace from show_stack+0x10/0x14
[ 1430.595069] show_stack from dump_stack_lvl+0x58/0x70
[ 1430.600157] dump_stack_lvl from __warn+0x70/0x1c0
[ 1430.604994] __warn from warn_slowpath_fmt+0x16c/0x294
[ 1430.610177] warn_slowpath_fmt from disconnect_work+0xe4/0x144
[cfg80211]
[ 1430.618095] disconnect_work [cfg80211] from
process_one_work+0x204/0x620
[ 1430.625989] process_one_work from worker_thread+0x1b0/0x474
[ 1430.631687] worker_thread from kthread+0x10c/0x12c
[ 1430.636602] kthread from ret_from_fork+0x14/0x24
[ 1430.641335] Exception stack(0xf0855fb0 to 0xf0855ff8)
[ 1430.646412] 5fa0: 00000000
00000000 00000000 00000000
[ 1430.654610] 5fc0: 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
[ 1430.662807] 5fe0: 00000000 00000000 00000000 00000000 00000013
00000000
[ 1430.670230] irq event stamp: 1985387
[ 1430.676059] hardirqs last enabled at (1985407): [<c019e8e0>]
console_unlock+0x134/0x164
[ 1430.686982] hardirqs last disabled at (1985416): [<c019e8cc>]
console_unlock+0x120/0x164
[ 1430.697999] softirqs last enabled at (1985404): [<c012f3b4>]
handle_softirqs+0x2ac/0x49c
[ 1430.709105] softirqs last disabled at (1985395): [<c012f74c>]
__irq_exit_rcu+0x154/0x194
[ 1430.720445] ---[ end trace 0000000000000000 ]---
[ 1430.757591] ------------[ cut here ]------------
[ 1430.763348] WARNING: CPU: 0 PID: 9 at net/wireless/core.h:231
is_wiphy_all_set_reg_flag+0xb4/0x144 [cfg80211]
[ 1430.776198] Modules linked in: rtw88_8822cu rtw88_8822c rtw88_usb
rtw88_core mac80211 libarc4 cfg80211 btusb btrtl btintel btbcm btmtk
imx_sdma ip_tables x_tables
[ 1430.793594] CPU: 0 PID: 9 Comm: kworker/0:1 Tainted: G W
6.6.51-00141-ga1649b6f8ed6 #7
[ 1430.805471] Hardware name: Freescale i.MX6 SoloX (Device Tree)
[ 1430.811324] Workqueue: events disconnect_work [cfg80211]
[ 1430.817785] unwind_backtrace from show_stack+0x10/0x14
[ 1430.823062] show_stack from dump_stack_lvl+0x58/0x70
[ 1430.828150] dump_stack_lvl from __warn+0x70/0x1c0
[ 1430.832986] __warn from warn_slowpath_fmt+0x16c/0x294
[ 1430.838167] warn_slowpath_fmt from
is_wiphy_all_set_reg_flag+0xb4/0x144 [cfg80211]
[ 1430.846957] is_wiphy_all_set_reg_flag [cfg80211] from
regulatory_hint_disconnect+0xc/0xdc [cfg80211]
[ 1430.858313] regulatory_hint_disconnect [cfg80211] from
disconnect_work+0x130/0x144 [cfg80211]
[ 1430.869050] disconnect_work [cfg80211] from
process_one_work+0x204/0x620
[ 1430.876943] process_one_work from worker_thread+0x1b0/0x474
[ 1430.882642] worker_thread from kthread+0x10c/0x12c
[ 1430.887554] kthread from ret_from_fork+0x14/0x24
[ 1430.892290] Exception stack(0xf0855fb0 to 0xf0855ff8)
[ 1430.897364] 5fa0: 00000000
00000000 00000000 00000000
[ 1430.905561] 5fc0: 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
[ 1430.913760] 5fe0: 00000000 00000000 00000000 00000000 00000013
00000000
[ 1430.921569] irq event stamp: 1985873
[ 1430.927055] hardirqs last enabled at (1985911): [<c019e8e0>]
console_unlock+0x134/0x164
[ 1430.938018] hardirqs last disabled at (1985920): [<c019e8cc>]
console_unlock+0x120/0x164
[ 1430.949023] softirqs last enabled at (1985908): [<c012f3b4>]
handle_softirqs+0x2ac/0x49c
[ 1430.959991] softirqs last disabled at (1985881): [<c012f74c>]
__irq_exit_rcu+0x154/0x194
[ 1430.970888] ---[ end trace 0000000000000000 ]---
[ 1431.012846] ------------[ cut here ]------------
[ 1431.019064] WARNING: CPU: 0 PID: 9 at net/wireless/core.h:239
is_wiphy_all_set_reg_flag+0x134/0x144 [cfg80211]
[ 1431.031956] Modules linked in: rtw88_8822cu rtw88_8822c rtw88_usb
rtw88_core mac80211 libarc4 cfg80211 btusb btrtl btintel btbcm btmtk
imx_sdma ip_tables x_tables
[ 1431.049154] CPU: 0 PID: 9 Comm: kworker/0:1 Tainted: G W
6.6.51-00141-ga1649b6f8ed6 #7
[ 1431.061186] Hardware name: Freescale i.MX6 SoloX (Device Tree)
[ 1431.067039] Workqueue: events disconnect_work [cfg80211]
[ 1431.073498] unwind_backtrace from show_stack+0x10/0x14
[ 1431.078776] show_stack from dump_stack_lvl+0x58/0x70
[ 1431.083865] dump_stack_lvl from __warn+0x70/0x1c0
[ 1431.088701] __warn from warn_slowpath_fmt+0x16c/0x294
[ 1431.093883] warn_slowpath_fmt from
is_wiphy_all_set_reg_flag+0x134/0x144 [cfg80211]
[ 1431.102757] is_wiphy_all_set_reg_flag [cfg80211] from
regulatory_hint_disconnect+0xc/0xdc [cfg80211]
[ 1431.114098] regulatory_hint_disconnect [cfg80211] from
disconnect_work+0x130/0x144 [cfg80211]
[ 1431.124831] disconnect_work [cfg80211] from
process_one_work+0x204/0x620
[ 1431.132724] process_one_work from worker_thread+0x1b0/0x474
[ 1431.138423] worker_thread from kthread+0x10c/0x12c
[ 1431.143335] kthread from ret_from_fork+0x14/0x24
[ 1431.148070] Exception stack(0xf0855fb0 to 0xf0855ff8)
[ 1431.153144] 5fa0: 00000000
00000000 00000000 00000000
[ 1431.161341] 5fc0: 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
[ 1431.169539] 5fe0: 00000000 00000000 00000000 00000000 00000013
00000000
[ 1431.176768] irq event stamp: 1986265
[ 1431.182674] hardirqs last enabled at (1986275): [<c019e8e0>]
console_unlock+0x134/0x164
[ 1431.193819] hardirqs last disabled at (1986284): [<c019e8cc>]
console_unlock+0x120/0x164
[ 1431.205066] softirqs last enabled at (1986314): [<c012f3b4>]
handle_softirqs+0x2ac/0x49c
[ 1431.215769] softirqs last disabled at (1986293): [<c012f74c>]
__irq_exit_rcu+0x154/0x194
[ 1431.226678] ---[ end trace 0000000000000000 ]---
```
