Hi Amitkumar, I'm seeing quite a strange behavior of RedPine RS9113SB module. I tried to use it as wifi hotspot, and sometimes I fail to connect to it. Moreover after that failure RSI driver starts to flood me with following messages: Issue 1: --------------------->8-------------------- rsi_91x: rsi_handle_card_ready: card ready indication in invalid state 9. rsi_91x: rsi_interrupt_handler: ==> FIRMWARE Assert <== rsi_91x: rsi_interrupt_handler: Firmware Status is 0x79 rsi_91x: rsi_core_xmit: FSM state not open rsi_91x: rsi_core_xmit: Failed to queue packet rsi_91x: rsi_core_xmit: FSM state not open rsi_91x: rsi_core_xmit: Failed to queue packet --------------------->8-------------------- Sometimes messages in same situation can be different (Issue 2): --------------------->8-------------------- rsi_91x: rsi_read_pkt: pkt from invalid queue: 2 rsi_91x: Failed to read the packet rsi_91x: rsi_sdio_write_register_multiple: Synch Cmd53 write failed -16 rsi_91x: rsi_sdio_host_intf_write_pkt: Unable to write onto the card: -16 rsi_91x: rsi_send_data_pkt: Failed to write pkt rsi_91x: rsi_sdio_check_buffer_status: Failed to read status register rsi_91x: rsi_sdio_check_buffer_status: Failed to read status register --------------------->8-------------------- NOTE: I use vanilla Linux kernel v4.17-rc2 rsi_91x: FW Version : 1.6.1 rsi_91x: Firmware file : rsi/rs9113_wlan_bt_dual_mode.rps Also these issues reproduce on vanilla v4.16 Linux kernel rsi_91x: FW Version : 1.5.3 rsi_91x: Firmware file : rsi/rs9113_wlan_qspi.rps Wifi hotspot is started with next commands: --------------------->8-------------------- # echo 1 > /proc/sys/net/ipv4/ip_forward # iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE # iptables -A FORWARD -i eth0 -o wlan0 -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT # iptables -A FORWARD -i wlan0 -o eth0 -j ACCEPT # hostapd -B /etc/hostapd.conf # cat /etc/hostapd.conf interface=wlan0 logger_syslog=-1 logger_syslog_level=2 logger_stdout=-1 logger_stdout_level=2 ctrl_interface=/var/run/hostapd ctrl_interface_group=0 ssid=HSDK_wifi hw_mode=g channel=1 beacon_int=100 dtim_period=2 max_num_sta=255 rts_threshold=-1 fragm_threshold=-1 macaddr_acl=0 auth_algs=3 ignore_broadcast_ssid=0 wmm_enabled=1 wmm_ac_bk_cwmin=4 wmm_ac_bk_cwmax=10 wmm_ac_bk_aifs=7 wmm_ac_bk_txop_limit=0 wmm_ac_bk_acm=0 wmm_ac_be_aifs=3 wmm_ac_be_cwmin=4 wmm_ac_be_cwmax=10 wmm_ac_be_txop_limit=0 wmm_ac_be_acm=0 wmm_ac_vi_aifs=2 wmm_ac_vi_cwmin=3 wmm_ac_vi_cwmax=4 wmm_ac_vi_txop_limit=94 wmm_ac_vi_acm=0 wmm_ac_vo_aifs=2 wmm_ac_vo_cwmin=2 wmm_ac_vo_cwmax=3 wmm_ac_vo_txop_limit=47 wmm_ac_vo_acm=0 eapol_key_index_workaround=0 own_ip_addr=127.0.0.1 --------------------->8-------------------- I tried to reproduce this issues with extended RSI log enabled, this is log tail for "Issue 2": --------------------->8-------------------- rsi_91x: Pkt pending interrupt rsi_91x: rsi_mgmt_pkt_recv: Msg Len: 0, Msg Type: 8 rsi_91x: rsi_sdio_host_intf_write_pkt: Successfully written onto card rsi_91x: Beacon event rsi_91x: rsi_core_qos_processor: Queue number = 4 rsi_91x: rsi_send_beacon: Added to beacon queue rsi_91x: rsi_sdio_host_intf_write_pkt: Successfully written onto card rsi_91x: rsi_core_qos_processor: Queue number = 5 rsi_91x: rsi_interrupt_handler: Intr_status = 8 8 4 rsi_91x: Pkt pending interrupt rsi_91x: rsi_mgmt_pkt_recv: Msg Len: 0, Msg Type: 1 rsi_91x: rsi_handle_ta_confirm_type: Invalid TA confirm pkt received rsi_91x: rsi_sdio_host_intf_write_pkt: Successfully written onto card rsi_91x: rsi_core_qos_processor: Queue number = 4 rsi_91x: rsi_sdio_host_intf_write_pkt: Successfully written onto card rsi_91x: rsi_core_qos_processor: Queue number = 4 rsi_91x: rsi_interrupt_handler: Intr_status = 8 8 4 rsi_91x: Pkt pending interrupt rsi_91x: rsi_read_pkt: pkt from invalid queue: 2 rsi_91x: rsi_sdio_host_intf_write_pkt: Successfully written onto card rsi_91x: Failed to read the packet rsi_91x: rsi_core_qos_processor: Queue number = 255 rsi_91x: rsi_core_qos_processor: No More Pkt rsi_91x: rsi_core_qos_processor: Queue number = 255 rsi_91x: rsi_core_qos_processor: No More Pkt rsi_91x: rsi_core_xmit: ===> Scheduling TX thead <=== rsi_91x: rsi_core_qos_processor: Queue number = 1 rsi_91x: rsi_sdio_write_register_multiple: Synch Cmd53 write failed -16 rsi_91x: rsi_sdio_host_intf_write_pkt: Unable to write onto the card: -16 rsi_91x: rsi_sdio_host_intf_write_pkt: Successfully written onto card rsi_91x: rsi_send_data_pkt: Failed to write pkt rsi_91x: rsi_core_xmit: ===> Scheduling TX thead <=== rsi_91x: rsi_core_qos_processor: Queue number = 1 rsi_91x: rsi_sdio_check_buffer_status: Failed to read status register rsi_91x: rsi_core_xmit: ===> Scheduling TX thead <=== rsi_91x: rsi_core_qos_processor: Queue number = 1 rsi_91x: rsi_sdio_check_buffer_status: Failed to read status register --------------------->8-------------------- Any ideas what could be wrong? -- Eugeniy Paltsev