Hello! I am trying to debug a strange issue with Samsung tablets, model SMT23NU, running Android 4.4.2. When the tablet is idle (no pinging or downloading video or similar), it often disconnects from and ath10k AP running my modified CT firmware. The difference is that when my firmware uses 'htt-mgt', which puts all frames over the HTT interface, things break, but in normal wmi-mgt case, things work fine. But, when I sniff on air, I see no reason for this to cause problems. Could be this is timing related issue in the tablet. I rooted the tablet so I could run 'adb shell' and then 'su'. Looking at 'cat /proc/kmsg', I captured an instance of this issue (see below). First thing is that the tablet scans about every 10 seconds. I guess this is because of how supplicant is configured: root@degaswifiue:/ # cat /system/etc/wifi/wpa_supplicant_overlay.conf p2p_disabled=1 autoscan=samsung_exponential:8:128 update_config=1 Anyone know a way I can tweak supplicant and/or android to give me more details? I cannot install completely new software on this tablet. Anyone know what that link lost (reason 0x0) means? <6>[ 479.518859] [1: kworker/1:2: 4992] [c1] [SENSOR] bma255_work_func - x = 78, y = -46, z = 1022 (ra:0) <4>[ 482.280792] [0: ksdioirqd/mmc2: 5119] [c0] wlan: SCAN COMPLETED: scanned AP count=42 <6>[ 483.967803] [1: healthd: 136] [c1] healthd: battery l=99 v=4219 t=29.0 h=2 st=3 c=0 o=4 ca=0 ct=1 ps=0 chg=u <6>[ 485.593292] [0: kworker/0:0: 5388] [c0] sec-battery sec-battery: sec_bat_time_management: Charging Time : 481 secs <6>[ 485.594421] [0: kworker/0:0: 5388] [c0] sec_bat_swelling_check: status(1), swell_mode(0:0), cv(0x0a), temp(290) <6>[ 485.594512] [0: kworker/0:0: 5388] [c0] sec-battery sec-battery: sec_bat_fullcharged_check: Charging Mode : Normal <6>[ 485.600952] [1: healthd: 136] [c1] healthd: battery l=99 v=4219 t=29.0 h=2 st=3 c=0 o=4 ca=0 ct=1 ps=0 chg=u <1>[ 488.841430] [0: wpa_supplicant: 5127] [c0] wlan: wlan0 START SCAN <4>[ 490.183685] [0: ksdioirqd/mmc2: 5119] [c0] wlan: EVENT: Link lost (reason 0x0) <1>[ 490.183837] [0: ksdioirqd/mmc2: 5119] [c0] wlan: Disconnected from 04:XX:XX:XX:bd:e0: Reason code 3 <4>[ 492.332305] [0: ksdioirqd/mmc2: 5119] [c0] wlan: SCAN COMPLETED: scanned AP count=43 <6>[ 495.549438] [1: kworker/1:2: 4992] [c1] [SENSOR] bma255_work_func - x = 78, y = -48, z = 1021 (ra:0) <6>[ 495.601928] [1: healthd: 136] [c1] healthd: battery l=99 v=4216 t=29.0 h=2 st=3 c=0 o=4 ca=0 ct=1 ps=0 chg=u <1>[ 498.848358] [0: wpa_supplicant: 5127] [c0] wlan: wlan0 START SCAN <6>[ 501.973999] [1: watchdog: 858] [c1] !@Sync 16 <4>[ 502.924743] [0: ksdioirqd/mmc2: 5119] [c0] wlan: SCAN COMPLETED: scanned AP count=45 <1>[ 502.955230] [0: wpa_supplicant: 5127] [c0] wlan: Connected to bssid 04:XX:XX:XX:bd:e0 successfully <6>[ 502.955444] [0: kworker/0:0: 5388] [c0] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready <1>[ 503.824829] [0: wpa_supplicant: 5127] [c0] wlan: wlan0 START SCAN Thanks, Ben -- Ben Greear <greearb@xxxxxxxxxxxxxxx> Candela Technologies Inc http://www.candelatech.com _______________________________________________ Hostap mailing list Hostap@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/hostap
