someya
2018年4月25日 15時33分
Armadillo-IoT G3Lで、WiFI(5GHz)＋BT通信を同時に利用していると
動作中にBTのスキャンが出来なくなる現象が発生しております。
スキャンが出来なくなった時刻のkern.logを確認すると、
以下のlogが出るようになっています。
----------
Apr 22 00:17:45 armadillo kernel: hci0: type 2 len 12
Apr 22 00:17:45 armadillo kernel: hci0: type 2 len 13
Apr 22 00:17:46 armadillo kernel: hci0: type 2 len 12
Apr 22 00:17:46 armadillo kernel: hci0: type 2 len 12
Apr 22 00:17:46 armadillo kernel: hci0: type 2 len 13
Apr 22 00:17:47 armadillo kernel: hci0: type 2 len 12
Apr 22 00:17:47 armadillo kernel: (stc): remove_channel_from_table: id 3
Apr 22 00:17:47 armadillo kernel: (stc): remove_channel_from_table: id 2
Apr 22 00:17:47 armadillo kernel: (stc): remove_channel_from_table: id 4
Apr 22 00:17:47 armadillo kernel: (stc): all chnl_ids unregistered
Apr 22 00:17:47 armadillo kernel: (stk) :ldisc_install = 0(stc): st_tty_close
Apr 22 00:17:47 armadillo kernel: hci0 b8055000
Apr 22 00:17:47 armadillo kernel: (stc): chnl_id list empty :4
Apr 22 00:17:48 armadillo kernel: (stk) : st_kim_start(stk) :ldisc_install = 1
Apr 22 00:17:49 armadillo kernel: (stk) :ldisc installation timeout(stk) :ldisc_install = 0
Apr 22 00:17:50 armadillo kernel: (stk) : timed out waiting for ldisc to be un-installed(stk) :ldisc_install = 1
Apr 22 00:17:51 armadillo kernel: (stk) :ldisc installation timeout(stk) :ldisc_install = 0
Apr 22 00:17:52 armadillo kernel: (stk) : timed out waiting for ldisc to be un-installed(stk) :ldisc_install = 1
Apr 22 00:17:53 armadillo kernel: (stk) :ldisc installation timeout(stk) :ldisc_install = 0
Apr 22 00:17:55 armadillo kernel: (stk) : timed out waiting for ldisc to be un-installed(stk) :ldisc_install = 1
Apr 22 00:17:56 armadillo kernel: (stk) :ldisc installation timeout(stk) :ldisc_install = 0
Apr 22 00:17:57 armadillo kernel: (stk) : timed out waiting for ldisc to be un-installed(stk) :ldisc_install = 1
Apr 22 00:17:58 armadillo kernel: (stk) :ldisc installation timeout(stk) :ldisc_install = 0
Apr 22 00:17:59 armadillo kernel: (stk) : timed out waiting for ldisc to be un-installed(stk) :ldisc_install = 1
Apr 22 00:18:00 armadillo kernel: (stk) :ldisc installation timeout(stk) :ldisc_install = 0
Apr 22 00:18:00 armadillo kernel: (stk) : timed out waiting for ldisc to be un-installed<3>Bluetooth: st_register failed -22
----------------
以下の修正は本件の問題の解決になりますか？
* Armadillo-IoT G3LでBT機能が利用できなくなる問題の修正
https://armadillo.atmark-techno.com/forum/armadillo/2474
* Armadillo 製品アップデートのお知らせ (2017年4月/Armadillo-IoT G3L対象)
Armadillo-IoT G3L 搭載WLAN+BT コンボモジュール(型番: WL1837MOD)のBT利用時にskb多重開放が起こる不具合を修正
以上、よろしくお願いいたします。