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Hello,
does anyone know how to setup the wlan0 port as a WiFi access point ?
Hostapd is active, the default configuration given in Armbian is used. I see the ARMBIAN network on my PC. When trying to connect, I get a lot of debug data (see below). Another post says it is wpa_suppicant which does not like the nf180211  driver.
Is there another driver to use ?
I tried stopping wpa_supplicant. Then this debug data no longer show up, but connection fails with a message :

RTL8723BS ap recv dissassoc reason code (8) sta:<mac address of the client>

Before I go further : is there any chance to setup an access point if wpa_supplicant service is disabled ?

Code:
Feb  9 18:55:06 localhost kernel: [   65.582947] ------------[ cut here ]------------
Feb  9 18:55:06 localhost kernel: [   65.594525] kernel BUG at mm/slub.c:3949!
Feb  9 18:55:06 localhost kernel: [   65.605311] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM
Feb  9 18:55:06 localhost kernel: [   65.618191] Modules linked in: nft_ct nft_masq nft_redir nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables nfnetlink_queue nfnetlink_log nfnetlink zstd snd_soc_hdmi_codec snd_soc_simple_card snd_soc_simple_card_utils syscon_reboot_mode reboot_mode dw_hdmi_i2s_audio rockchip_rga panfrost gpu_sched videobuf2_dma_sg v4l2_mem2mem videobuf2_memops videobuf2_v4l2 videobuf2_common rk_crypto snd_soc_rockchip_i2s snd_soc_rockchip_pcm snd_soc_core dw_wdt snd_pcm_dmaengine rk3288_gpiomem snd_usb_audio snd_hwdep snd_usbmidi_lib snd_rawmidi snd_seq_device snd_pcm snd_timer snd r8152 soundcore zram rockchip_thermal r8723bs(C) cpufreq_dt ip_tables gpio_keys uas realtek
Feb  9 18:55:06 localhost kernel: [   65.721267] CPU: 0 PID: 730 Comm: RTW_CMD_THREAD Tainted: G         C        5.4.14-rockchip #rc1
Feb  9 18:55:06 localhost kernel: [   65.738894] Hardware name: Rockchip (Device Tree)
Feb  9 18:55:06 localhost kernel: [   65.751844] PC is at kfree+0x2e0/0x30c
Feb  9 18:55:06 localhost kernel: [   65.763687] LR is at nl80211_send_station+0x954/0xfc4
Feb  9 18:55:06 localhost kernel: [   65.777021] pc : [<c02b7584>]    lr : [<c0e25cd8>]    psr: 40040013
Feb  9 18:55:06 localhost kernel: [   65.791827] sp : cff43d28  ip : cff43d58  fp : cff43d54
Feb  9 18:55:06 localhost kernel: [   65.805501] r10: c1606788  r9 : ea98a14c  r8 : cff43ec0
Feb  9 18:55:06 localhost kernel: [   65.819155] r7 : cff43ec0  r6 : c0e25cd8  r5 : ef03856c  r4 : 00000000
Feb  9 18:55:06 localhost kernel: [   65.834303] r3 : 00000000  r2 : 00000024  r1 : ecacde54  r0 : cff43ec0
Feb  9 18:55:06 localhost kernel: [   65.849419] Flags: nZcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
Feb  9 18:55:06 localhost kernel: [   65.865285] Control: 10c5387d  Table: 2b28006a  DAC: 00000051
Feb  9 18:55:06 localhost kernel: [   65.879603] Process RTW_CMD_THREAD (pid: 730, stack limit = 0x814e5483)
Feb  9 18:55:06 localhost kernel: [   65.894920] Stack: (0xcff43d28 to 0xcff44000)
Feb  9 18:55:06 localhost kernel: [   65.907665] 3d20:                   ecacde1c c0796938 cff43e00 cfc92540 00000011 00000000
Feb  9 18:55:06 localhost kernel: [   65.924863] 3d40: cff43ec0 ea98a14c cff43db4 cff43d58 c0e25cd8 c02b72b0 00000005 00000013
Feb  9 18:55:06 localhost kernel: [   65.942102] 3d60: c0275b30 00000000 c1606788 ea98a030 ea98a14c ea98a014 00000000 00000000
Feb  9 18:55:06 localhost kernel: [   65.959350] 3d80: 00fdc550 cf05c900 000101d8 cfe381e0 cfe38800 00000000 00000a20 ecacde0a
Feb  9 18:55:06 localhost kernel: [   65.976681] 3da0: cff43e00 cfc92540 cff43dfc cff43db8 c0e269f4 c0e25390 00000000 cfe38000
Feb  9 18:55:06 localhost kernel: [   65.994058] 3dc0: cfe38800 ecacde0a cff43e00 00000001 cff43dec c1606788 0000001c 00000000
Feb  9 18:55:06 localhost kernel: [   66.011504] 3de0: 00000000 bf080050 ea44cf40 ffff1b13 cff43eec cff43e00 bf0756bc c0e26970
Feb  9 18:55:06 localhost kernel: [   66.028999] 3e00: 00000000 00000000 00000fff cf05c900 c010d694 c1606788 cf05c900 00000006
Feb  9 18:55:06 localhost kernel: [   66.046516] 3e20: 00000000 00000000 00000000 ffff1b13 cff43e64 cff43e40 bf058230 bf057f24
Feb  9 18:55:06 localhost kernel: [   66.064023] 3e40: cff43e74 cff43e50 c010d694 c010c1b8 c1606788 00000000 c0f0e784 c1604900
Feb  9 18:55:06 localhost kernel: [   66.081592] 3e60: bf080050 ea44cf40 cff43eac c02b4e98 ecacde1c 00000038 cff43ec4 cff43e88
Feb  9 18:55:06 localhost kernel: [   66.099208] 3e80: c02b4e98 c02c3fe4 cff43ef0 c0152568 00000054 bf07bd60 ffffe000 f0fdb000
Feb  9 18:55:06 localhost kernel: [   66.116910] 3ea0: 00000054 c012beec ffffe000 00000054 cff43ed4 cff43ec0 c012beec c0151eb4
Feb  9 18:55:06 localhost kernel: [   66.134690] 3ec0: bf02cf20 f0f02f84 cff43eec cf05c900 f0fdb000 f0f02f84 00000054 ecacde00
Feb  9 18:55:06 localhost kernel: [   66.152552] 3ee0: cff43f0c cff43ef0 bf02cf38 bf075648 f0fdc000 00000000 f0fdc4b8 c1604900
Feb  9 18:55:06 localhost kernel: [   66.170407] 3f00: cff43f24 cff43f10 bf037e4c bf02cd7c f0fdc000 f0fde000 cff43f74 cff43f28
Feb  9 18:55:06 localhost kernel: [   66.188259] 3f20: bf02593c bf037dcc cff43f4c cff43f38 f0fdc49c f0fdb000 bf088000 ecbaea00
Feb  9 18:55:06 localhost kernel: [   66.206145] 3f40: cff42000 f0fdc480 c0148f30 ebe07080 ebb20240 00000000 cff42000 f0fdb000
Feb  9 18:55:06 localhost kernel: [   66.224089] 3f60: bf0257a4 eb8a57e8 cff43fac cff43f78 c014a114 bf0257b0 ebe070a8 ebe070a8
Feb  9 18:55:06 localhost kernel: [   66.242099] 3f80: 00000000 ebb20240 c0149fa4 00000000 00000000 00000000 00000000 00000000
Feb  9 18:55:06 localhost kernel: [   66.260165] 3fa0: 00000000 cff43fb0 c01010e8 c0149fb0 00000000 00000000 00000000 00000000
Feb  9 18:55:06 localhost kernel: [   66.278231] 3fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Feb  9 18:55:06 localhost kernel: [   66.296251] 3fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
Feb  9 18:55:06 localhost kernel: [   66.314184] Backtrace:
Feb  9 18:55:06 localhost kernel: [   66.325656] [<c02b72a4>] (kfree) from [<c0e25cd8>] (nl80211_send_station+0x954/0xfc4)
Feb  9 18:55:06 localhost kernel: [   66.343354]  r9:ea98a14c r8:cff43ec0 r7:00000000 r6:00000011 r5:cfc92540 r4:cff43e00
Feb  9 18:55:06 localhost kernel: [   66.360903] [<c0e25384>] (nl80211_send_station) from [<c0e269f4>] (cfg80211_new_sta+0x90/0x1cc)
Feb  9 18:55:06 localhost kernel: [   66.379505]  r10:cfc92540 r9:cff43e00 r8:ecacde0a r7:00000a20 r6:00000000 r5:cfe38800
Feb  9 18:55:06 localhost kernel: [   66.397137]  r4:cfe381e0
Feb  9 18:55:06 localhost kernel: [   66.408936] [<c0e26964>] (cfg80211_new_sta) from [<bf0756bc>] (rtw_cfg80211_indicate_sta_assoc+0x80/0x9c [r8723bs])
Feb  9 18:55:06 localhost kernel: [   66.429822]  r10:ffff1b13 r9:ea44cf40 r8:bf080050 r7:00000000 r6:00000000 r5:0000001c
Feb  9 18:55:06 localhost kernel: [   66.447821]  r4:c1606788
Feb  9 18:55:06 localhost kernel: [   66.459980] [<bf07563c>] (rtw_cfg80211_indicate_sta_assoc [r8723bs]) from [<bf02cf38>] (rtw_stassoc_event_callback+0x1c8/0x1d4 [r8723bs])
Feb  9 18:55:06 localhost kernel: [   66.483468]  r7:ecacde00 r6:00000054 r5:f0f02f84 r4:f0fdb000
Feb  9 18:55:06 localhost kernel: [   66.499623] [<bf02cd70>] (rtw_stassoc_event_callback [r8723bs]) from [<bf037e4c>] (mlme_evt_hdl+0x8c/0xb4 [r8723bs])
Feb  9 18:55:06 localhost kernel: [   66.521391]  r7:c1604900 r6:f0fdc4b8 r5:00000000 r4:f0fdc000
Feb  9 18:55:06 localhost kernel: [   66.537862] [<bf037dc0>] (mlme_evt_hdl [r8723bs]) from [<bf02593c>] (rtw_cmd_thread+0x198/0x3d8 [r8723bs])
Feb  9 18:55:06 localhost kernel: [   66.558949]  r5:f0fde000 r4:f0fdc000
Feb  9 18:55:06 localhost kernel: [   66.573231] [<bf0257a4>] (rtw_cmd_thread [r8723bs]) from [<c014a114>] (kthread+0x170/0x174)
Feb  9 18:55:06 localhost kernel: [   66.592949]  r10:eb8a57e8 r9:bf0257a4 r8:f0fdb000 r7:cff42000 r6:00000000 r5:ebb20240
Feb  9 18:55:06 localhost kernel: [   66.612109]  r4:ebe07080
Feb  9 18:55:06 localhost kernel: [   66.625316] [<c0149fa4>] (kthread) from [<c01010e8>] (ret_from_fork+0x14/0x2c)
Feb  9 18:55:06 localhost kernel: [   66.643963] Exception stack(0xcff43fb0 to 0xcff43ff8)
Feb  9 18:55:06 localhost kernel: [   66.657999] rk3x-i2c ff650000.i2c: timeout, ipd: 0x10, state: 1
Feb  9 18:55:06 localhost kernel: [   66.660149] 3fa0:                                     00000000 00000000 00000000 00000000
Feb  9 18:55:06 localhost kernel: [   66.697078] 3fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Feb  9 18:55:06 localhost kernel: [   66.716645] 3fe0: 00000000 00000000 00000000 00000000 00000013 00000000
Feb  9 18:55:06 localhost kernel: [   66.734160]  r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c0149fa4
Feb  9 18:55:06 localhost kernel: [   66.752840]  r4:ebb20240
Feb  9 18:55:06 localhost kernel: [   66.765301] Code: 1a000003 e5953004 e3130001 1a000000 (e7f001f2)
Feb  9 18:55:06 localhost kernel: [   66.781637] ---[ end trace 1a416b8f733809ad ]---

hostapd.conf is as follows :
Code:
#
# armbian hostapd configuration example
#
# nl80211 mode
#

ssid=ARMBIAN
interface=wlan0
hw_mode=g
channel=5
bridge=br0
driver=nl80211

logger_syslog=0
logger_syslog_level=0
wmm_enabled=1
wpa=2
preamble=1

wpa_psk=66eb31d2b48d19ba216f2e50c6831ee11be98e2fa3a8075e30b866f4a5ccda27
wpa_passphrase=12345678
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP
rsn_pairwise=CCMP
auth_algs=1
macaddr_acl=0

noscan=1

### IEEE 802.11n
#ieee80211n=1
#ht_capab=
country_code=FR
#ieee80211d=1
### IEEE 802.11n

### IEEE 802.11a
#hw_mode=a
### IEEE 802.11a

### IEEE 802.11ac
#ieee80211ac=1
#vht_capab=[MAX-MPDU-11454][SHORT-GI-80][TX-STBC-2BY1][RX-STBC-1][MAX-A-MPDU-LEN-EXP3]
#vht_oper_chwidth=1
#vht_oper_centr_freq_seg0_idx=42
### IEEE 802.11ac

# controlling enabled
ctrl_interface=/var/run/hostapd
ctrl_interface_group=0
> Is there another driver to use ?

Use old kernel. AP is broken on a modern kernel driver.
(02-09-2020, 06:32 PM)Dysmas Wrote: [ -> ]Hello,
does anyone know how to setup the wlan0 port as a WiFi access point ?
Hostapd is active, the default configuration given in Armbian is used. I see the ARMBIAN network on my PC. When trying to connect, I get a lot of debug data (see below). Another post says it is wpa_suppicant which does not like the nf180211  driver.
Is there another driver to use ?
I tried stopping wpa_supplicant. Then this debug data no longer show up, but connection fails with a message :

RTL8723BS ap recv dissassoc reason code (8) sta:<mac address of the client>

Before I go further : is there any chance to setup an access point if wpa_supplicant service is disabled ?

Code:
Feb  9 18:55:06 localhost kernel: [   65.582947] ------------[ cut here ]------------
Feb  9 18:55:06 localhost kernel: [   65.594525] kernel BUG at mm/slub.c:3949!
Feb  9 18:55:06 localhost kernel: [   65.605311] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM
Feb  9 18:55:06 localhost kernel: [   65.618191] Modules linked in: nft_ct nft_masq nft_redir nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables nfnetlink_queue nfnetlink_log nfnetlink zstd snd_soc_hdmi_codec snd_soc_simple_card snd_soc_simple_card_utils syscon_reboot_mode reboot_mode dw_hdmi_i2s_audio rockchip_rga panfrost gpu_sched videobuf2_dma_sg v4l2_mem2mem videobuf2_memops videobuf2_v4l2 videobuf2_common rk_crypto snd_soc_rockchip_i2s snd_soc_rockchip_pcm snd_soc_core dw_wdt snd_pcm_dmaengine rk3288_gpiomem snd_usb_audio snd_hwdep snd_usbmidi_lib snd_rawmidi snd_seq_device snd_pcm snd_timer snd r8152 soundcore zram rockchip_thermal r8723bs(C) cpufreq_dt ip_tables gpio_keys uas realtek
Feb  9 18:55:06 localhost kernel: [   65.721267] CPU: 0 PID: 730 Comm: RTW_CMD_THREAD Tainted: G         C        5.4.14-rockchip #rc1
Feb  9 18:55:06 localhost kernel: [   65.738894] Hardware name: Rockchip (Device Tree)
Feb  9 18:55:06 localhost kernel: [   65.751844] PC is at kfree+0x2e0/0x30c
Feb  9 18:55:06 localhost kernel: [   65.763687] LR is at nl80211_send_station+0x954/0xfc4
Feb  9 18:55:06 localhost kernel: [   65.777021] pc : [<c02b7584>]    lr : [<c0e25cd8>]    psr: 40040013
Feb  9 18:55:06 localhost kernel: [   65.791827] sp : cff43d28  ip : cff43d58  fp : cff43d54
Feb  9 18:55:06 localhost kernel: [   65.805501] r10: c1606788  r9 : ea98a14c  r8 : cff43ec0
Feb  9 18:55:06 localhost kernel: [   65.819155] r7 : cff43ec0  r6 : c0e25cd8  r5 : ef03856c  r4 : 00000000
Feb  9 18:55:06 localhost kernel: [   65.834303] r3 : 00000000  r2 : 00000024  r1 : ecacde54  r0 : cff43ec0
Feb  9 18:55:06 localhost kernel: [   65.849419] Flags: nZcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
Feb  9 18:55:06 localhost kernel: [   65.865285] Control: 10c5387d  Table: 2b28006a  DAC: 00000051
Feb  9 18:55:06 localhost kernel: [   65.879603] Process RTW_CMD_THREAD (pid: 730, stack limit = 0x814e5483)
Feb  9 18:55:06 localhost kernel: [   65.894920] Stack: (0xcff43d28 to 0xcff44000)
Feb  9 18:55:06 localhost kernel: [   65.907665] 3d20:                   ecacde1c c0796938 cff43e00 cfc92540 00000011 00000000
Feb  9 18:55:06 localhost kernel: [   65.924863] 3d40: cff43ec0 ea98a14c cff43db4 cff43d58 c0e25cd8 c02b72b0 00000005 00000013
Feb  9 18:55:06 localhost kernel: [   65.942102] 3d60: c0275b30 00000000 c1606788 ea98a030 ea98a14c ea98a014 00000000 00000000
Feb  9 18:55:06 localhost kernel: [   65.959350] 3d80: 00fdc550 cf05c900 000101d8 cfe381e0 cfe38800 00000000 00000a20 ecacde0a
Feb  9 18:55:06 localhost kernel: [   65.976681] 3da0: cff43e00 cfc92540 cff43dfc cff43db8 c0e269f4 c0e25390 00000000 cfe38000
Feb  9 18:55:06 localhost kernel: [   65.994058] 3dc0: cfe38800 ecacde0a cff43e00 00000001 cff43dec c1606788 0000001c 00000000
Feb  9 18:55:06 localhost kernel: [   66.011504] 3de0: 00000000 bf080050 ea44cf40 ffff1b13 cff43eec cff43e00 bf0756bc c0e26970
Feb  9 18:55:06 localhost kernel: [   66.028999] 3e00: 00000000 00000000 00000fff cf05c900 c010d694 c1606788 cf05c900 00000006
Feb  9 18:55:06 localhost kernel: [   66.046516] 3e20: 00000000 00000000 00000000 ffff1b13 cff43e64 cff43e40 bf058230 bf057f24
Feb  9 18:55:06 localhost kernel: [   66.064023] 3e40: cff43e74 cff43e50 c010d694 c010c1b8 c1606788 00000000 c0f0e784 c1604900
Feb  9 18:55:06 localhost kernel: [   66.081592] 3e60: bf080050 ea44cf40 cff43eac c02b4e98 ecacde1c 00000038 cff43ec4 cff43e88
Feb  9 18:55:06 localhost kernel: [   66.099208] 3e80: c02b4e98 c02c3fe4 cff43ef0 c0152568 00000054 bf07bd60 ffffe000 f0fdb000
Feb  9 18:55:06 localhost kernel: [   66.116910] 3ea0: 00000054 c012beec ffffe000 00000054 cff43ed4 cff43ec0 c012beec c0151eb4
Feb  9 18:55:06 localhost kernel: [   66.134690] 3ec0: bf02cf20 f0f02f84 cff43eec cf05c900 f0fdb000 f0f02f84 00000054 ecacde00
Feb  9 18:55:06 localhost kernel: [   66.152552] 3ee0: cff43f0c cff43ef0 bf02cf38 bf075648 f0fdc000 00000000 f0fdc4b8 c1604900
Feb  9 18:55:06 localhost kernel: [   66.170407] 3f00: cff43f24 cff43f10 bf037e4c bf02cd7c f0fdc000 f0fde000 cff43f74 cff43f28
Feb  9 18:55:06 localhost kernel: [   66.188259] 3f20: bf02593c bf037dcc cff43f4c cff43f38 f0fdc49c f0fdb000 bf088000 ecbaea00
Feb  9 18:55:06 localhost kernel: [   66.206145] 3f40: cff42000 f0fdc480 c0148f30 ebe07080 ebb20240 00000000 cff42000 f0fdb000
Feb  9 18:55:06 localhost kernel: [   66.224089] 3f60: bf0257a4 eb8a57e8 cff43fac cff43f78 c014a114 bf0257b0 ebe070a8 ebe070a8
Feb  9 18:55:06 localhost kernel: [   66.242099] 3f80: 00000000 ebb20240 c0149fa4 00000000 00000000 00000000 00000000 00000000
Feb  9 18:55:06 localhost kernel: [   66.260165] 3fa0: 00000000 cff43fb0 c01010e8 c0149fb0 00000000 00000000 00000000 00000000
Feb  9 18:55:06 localhost kernel: [   66.278231] 3fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Feb  9 18:55:06 localhost kernel: [   66.296251] 3fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
Feb  9 18:55:06 localhost kernel: [   66.314184] Backtrace:
Feb  9 18:55:06 localhost kernel: [   66.325656] [<c02b72a4>] (kfree) from [<c0e25cd8>] (nl80211_send_station+0x954/0xfc4)
Feb  9 18:55:06 localhost kernel: [   66.343354]  r9:ea98a14c r8:cff43ec0 r7:00000000 r6:00000011 r5:cfc92540 r4:cff43e00
Feb  9 18:55:06 localhost kernel: [   66.360903] [<c0e25384>] (nl80211_send_station) from [<c0e269f4>] (cfg80211_new_sta+0x90/0x1cc)
Feb  9 18:55:06 localhost kernel: [   66.379505]  r10:cfc92540 r9:cff43e00 r8:ecacde0a r7:00000a20 r6:00000000 r5:cfe38800
Feb  9 18:55:06 localhost kernel: [   66.397137]  r4:cfe381e0
Feb  9 18:55:06 localhost kernel: [   66.408936] [<c0e26964>] (cfg80211_new_sta) from [<bf0756bc>] (rtw_cfg80211_indicate_sta_assoc+0x80/0x9c [r8723bs])
Feb  9 18:55:06 localhost kernel: [   66.429822]  r10:ffff1b13 r9:ea44cf40 r8:bf080050 r7:00000000 r6:00000000 r5:0000001c
Feb  9 18:55:06 localhost kernel: [   66.447821]  r4:c1606788
Feb  9 18:55:06 localhost kernel: [   66.459980] [<bf07563c>] (rtw_cfg80211_indicate_sta_assoc [r8723bs]) from [<bf02cf38>] (rtw_stassoc_event_callback+0x1c8/0x1d4 [r8723bs])
Feb  9 18:55:06 localhost kernel: [   66.483468]  r7:ecacde00 r6:00000054 r5:f0f02f84 r4:f0fdb000
Feb  9 18:55:06 localhost kernel: [   66.499623] [<bf02cd70>] (rtw_stassoc_event_callback [r8723bs]) from [<bf037e4c>] (mlme_evt_hdl+0x8c/0xb4 [r8723bs])
Feb  9 18:55:06 localhost kernel: [   66.521391]  r7:c1604900 r6:f0fdc4b8 r5:00000000 r4:f0fdc000
Feb  9 18:55:06 localhost kernel: [   66.537862] [<bf037dc0>] (mlme_evt_hdl [r8723bs]) from [<bf02593c>] (rtw_cmd_thread+0x198/0x3d8 [r8723bs])
Feb  9 18:55:06 localhost kernel: [   66.558949]  r5:f0fde000 r4:f0fdc000
Feb  9 18:55:06 localhost kernel: [   66.573231] [<bf0257a4>] (rtw_cmd_thread [r8723bs]) from [<c014a114>] (kthread+0x170/0x174)
Feb  9 18:55:06 localhost kernel: [   66.592949]  r10:eb8a57e8 r9:bf0257a4 r8:f0fdb000 r7:cff42000 r6:00000000 r5:ebb20240
Feb  9 18:55:06 localhost kernel: [   66.612109]  r4:ebe07080
Feb  9 18:55:06 localhost kernel: [   66.625316] [<c0149fa4>] (kthread) from [<c01010e8>] (ret_from_fork+0x14/0x2c)
Feb  9 18:55:06 localhost kernel: [   66.643963] Exception stack(0xcff43fb0 to 0xcff43ff8)
Feb  9 18:55:06 localhost kernel: [   66.657999] rk3x-i2c ff650000.i2c: timeout, ipd: 0x10, state: 1
Feb  9 18:55:06 localhost kernel: [   66.660149] 3fa0:                                     00000000 00000000 00000000 00000000
Feb  9 18:55:06 localhost kernel: [   66.697078] 3fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Feb  9 18:55:06 localhost kernel: [   66.716645] 3fe0: 00000000 00000000 00000000 00000000 00000013 00000000
Feb  9 18:55:06 localhost kernel: [   66.734160]  r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c0149fa4
Feb  9 18:55:06 localhost kernel: [   66.752840]  r4:ebb20240
Feb  9 18:55:06 localhost kernel: [   66.765301] Code: 1a000003 e5953004 e3130001 1a000000 (e7f001f2)
Feb  9 18:55:06 localhost kernel: [   66.781637] ---[ end trace 1a416b8f733809ad ]---

hostapd.conf is as follows :
Code:
#
# armbian hostapd configuration example
#
# nl80211 mode
#

ssid=ARMBIAN
interface=wlan0
hw_mode=g
channel=5
bridge=br0
driver=nl80211

logger_syslog=0
logger_syslog_level=0
wmm_enabled=1
wpa=2
preamble=1

wpa_psk=66eb31d2b48d19ba216f2e50c6831ee11be98e2fa3a8075e30b866f4a5ccda27
wpa_passphrase=12345678
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP
rsn_pairwise=CCMP
auth_algs=1
macaddr_acl=0

noscan=1

### IEEE 802.11n
#ieee80211n=1
#ht_capab=
country_code=FR
#ieee80211d=1
### IEEE 802.11n

### IEEE 802.11a
#hw_mode=a
### IEEE 802.11a

### IEEE 802.11ac
#ieee80211ac=1
#vht_capab=[MAX-MPDU-11454][SHORT-GI-80][TX-STBC-2BY1][RX-STBC-1][MAX-A-MPDU-LEN-EXP3]
#vht_oper_chwidth=1
#vht_oper_centr_freq_seg0_idx=42
### IEEE 802.11ac

# controlling enabled
ctrl_interface=/var/run/hostapd
ctrl_interface_group=0