Chromebit: bluetooth issues

[janeck]

Hi there,

I am running Arch on an Asus Chromebit CS10:
$this->bbcode_second_pass_code('', '# uname -a
Linux alarm 3.14.0-17-ARCH #1 SMP Wed Jan 20 13:58:00 MST 2016 armv7l GNU/Linux')
Unfortunately, I have some troubles with the bluetooth module. After reboot, bluetooth is working incl. connection to paired devices, etc. despite this:
$this->bbcode_second_pass_code('', 'Feb 02 07:45:10 alarm systemd-udevd[148]: Unload module index
Feb 02 07:45:10 alarm systemd-udevd[148]: Unloaded link configuration context.
Feb 02 07:45:59 alarm systemd-udevd[156]: Process '/usr/bin/set-wireless-regdom' failed with exit code 1.
Feb 02 07:46:57 alarm systemd-udevd[148]: seq 1137 '/devices/ff0d0000.dwmmc/mmc_host/mmc2/mmc2:0001/mmc2:0001:3' is taking a long time')
$this->bbcode_second_pass_code('', '# hciconfig -a
hci1: Type: BR/EDR Bus: UART
BD Address: 80:A5:89:0F:79:B8 ACL MTU: 1021:8 SCO MTU: 64:1
DOWN
RX bytes:675 acl:0 sco:0 events:35 errors:0
TX bytes:427 acl:0 sco:0 commands:35 errors:0
Features: 0xbf 0xfe 0xcf 0xfe 0xdb 0xff 0x7b 0x87
Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
Link policy: RSWITCH SNIFF
Link mode: SLAVE ACCEPT

hci0: Type: BR/EDR Bus: SDIO
BD Address: 00:00:00:00:00:00 ACL MTU: 0:0 SCO MTU: 0:0
DOWN
RX bytes:0 acl:0 sco:0 events:0 errors:0
TX bytes:0 acl:0 sco:0 commands:0 errors:0
Features: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
Packet type: DM1 DH1 HV1
Link policy:
Link mode: SLAVE ACCEPT
')
… but after ~2 min. this happens:
$this->bbcode_second_pass_code('', 'Feb 02 07:48:57 alarm systemd-udevd[148]: seq 1137 '/devices/ff0d0000.dwmmc/mmc_host/mmc2/mmc2:0001/mmc2:0001:3' killed
Feb 02 07:48:57 alarm systemd-udevd[148]: worker [165] terminated by signal 9 (Killed)
Feb 02 07:48:57 alarm systemd-udevd[148]: worker [165] failed while handling '/devices/ff0d0000.dwmmc/mmc_host/mmc2/mmc2:0001/mmc2:0001:3'')
The device is no more there…
$this->bbcode_second_pass_code('', '# hciconfig -a
hci0: Type: BR/EDR Bus: SDIO
BD Address: 00:00:00:00:00:00 ACL MTU: 0:0 SCO MTU: 0:0
DOWN
RX bytes:0 acl:0 sco:0 events:0 errors:0
TX bytes:0 acl:0 sco:0 commands:0 errors:0
Features: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
Packet type: DM1 DH1 HV1
Link policy:
Link mode: SLAVE ACCEPT
')
How this looks in bluetoothctl:
$this->bbcode_second_pass_code('', '# bluetoothctl
[NEW] Controller 80:A5:89:0F:79:B8 alarm [default]
[DEL] Controller 80:A5:89:0F:79:B8 alarm [default]')
Some more info:
$this->bbcode_second_pass_code('', '# systemctl status bluetooth
* bluetooth.service - Bluetooth service
Loaded: loaded (/usr/lib/systemd/system/bluetooth.service; enabled; vendor preset: disabled)
Active: active (running) since Tue 2016-02-02 08:36:15 UTC; 35s ago
Docs: man:bluetoothd(8)
Main PID: 205 (bluetoothd)
Status: "Running"
CGroup: /system.slice/bluetooth.service
`-205 /usr/lib/bluetooth/bluetoothd

Feb 02 08:36:15 alarm bluetoothd[205]: Error adding Link Loss service
Feb 02 08:36:15 alarm bluetoothd[205]: Not enough free handles to register service
Feb 02 08:36:15 alarm bluetoothd[205]: Not enough free handles to register service
Feb 02 08:36:15 alarm bluetoothd[205]: Not enough free handles to register service
Feb 02 08:36:15 alarm bluetoothd[205]: Current Time Service could not be registered
Feb 02 08:36:15 alarm bluetoothd[205]: gatt-time-server: Input/output error (5)
Feb 02 08:36:15 alarm bluetoothd[205]: Not enough free handles to register service
Feb 02 08:36:15 alarm bluetoothd[205]: Not enough free handles to register service
Feb 02 08:36:15 alarm bluetoothd[205]: Sap driver initialization failed.
Feb 02 08:36:15 alarm bluetoothd[205]: sap-server: Operation not permitted (1)
')
$this->bbcode_second_pass_code('', '# dmesg | grep Bluetooth
[ 9.850261] Bluetooth: Core ver 2.20
[ 9.850336] Bluetooth: HCI device and connection manager initialized
[ 9.850364] Bluetooth: HCI socket layer initialized
[ 9.850370] Bluetooth: L2CAP socket layer initialized
[ 9.850391] Bluetooth: SCO socket layer initialized
[ 9.856880] Bluetooth: HCI UART driver ver 2.3
[ 9.856886] Bluetooth: HCI UART protocol H4 registered
[ 9.856887] Bluetooth: HCI UART protocol BCSP registered
[ 9.856888] Bluetooth: HCI UART protocol LL registered
[ 9.856890] Bluetooth: HCI UART protocol ATH3K registered
[ 9.856892] Bluetooth: HCI UART protocol Three-wire (H5) registered
[ 9.856893] Bluetooth: HCI UART protocol BCM registered
')
$this->bbcode_second_pass_code('', '# lsmod
Module Size Used by
hci_uart 33368 0
btbcm 12890 1 hci_uart
btintel 12453 1 hci_uart
bluetooth 332906 3 btbcm,hci_uart,btintel
joydev 17227 0
hid_apple 12760 0
hid_cherry 12508 0
brcmfmac 195774 0
brcmutil 13264 1 brcmfmac
cfg80211 376411 1 brcmfmac
sch_fq_codel 17613 2
ip_tables 17506 0')

Does anyone have an idea, where this is coming from and what I can do about?

Thanks in advance for any hints.