2416505_en-US

[#1]

wifi driver crashes- 88w8997

I am facing an intermittent Wi-Fi driver crash issue with the FN-Link L297B-SR module (Wi-Fi and Bluetooth sharing a single antenna). The issue occurs randomly, sometimes after 1 day, sometimes after 2 days, and occasionally only after 4 to 5 days of continuous operation.

please check the logs 

[64622.321614] mwifiex_sdio mmc2:0001:1: info: successfully disconnected from ca:c6:5c:cb:ad:7e: reason code 3
[64624.050010] mwifiex_sdio mmc2:0001:1: info: trying to associate to bssid ca:c6:5c:cb:ad:7e
[64624.072596] mwifiex_sdio mmc2:0001:1: event: unknown event id: 0x95
[64624.085770] mwifiex_sdio mmc2:0001:1: info: associated to bssid ca:c6:5c:cb:ad:7e successfully
[64987.640381] Bluetooth: hci0: Frame reassembly failed (-84)
[65060.466817] Bluetooth: hci0: Frame reassembly failed (-84)
[65184.303423] mwifiex_sdio mmc2:0001:1: info: successfully disconnected from ca:c6:5c:cb:ad:7e: reason code 0
[65204.712100] ieee80211 phy0: sched_scan start : n_ssids=4 n_match_sets=4
[65204.725038] ieee80211 phy0: n_channels=41 interval=10 ie_len=13
[65259.046894] ieee80211 phy0: sched scan stop!
[65259.067983] mwifiex_sdio mmc2:0001:1: info: trying to associate to bssid ca:c6:5c:cb:ad:7e
[65260.594440] mwifiex_sdio mmc2:0001:1: ASSOC_RESP: failed, status code=2 err=0xfffa a_id=0x3fff
[65260.611662] mwifiex_sdio mmc2:0001:1: assoc failure: reason Unknown connect failure
[65260.624191] mwifiex_sdio mmc2:0001:1: info: association to bssid ca:c6:5c:cb:ad:7e failed
[65260.636278] ieee80211 phy0: sched_scan start : n_ssids=4 n_match_sets=4
[65260.645499] ieee80211 phy0: n_channels=41 interval=10 ie_len=13
[65271.191030] mwifiex_sdio mmc2:0001:1: mwifiex_cmd_timeout_func: Timeout cmd id = 0x6b, act = 0x1
[65271.199985] mwifiex_sdio mmc2:0001:1: num_data_h2c_failure = 0
[65271.205896] mwifiex_sdio mmc2:0001:1: num_cmd_h2c_failure = 0
[65271.211654] mwifiex_sdio mmc2:0001:1: is_cmd_timedout = 1
[65271.217064] mwifiex_sdio mmc2:0001:1: num_tx_timeout = 0
[65271.222454] mwifiex_sdio mmc2:0001:1: last_cmd_index = 0
[65271.227893] mwifiex_sdio mmc2:0001:1: last_cmd_id: 6b 00 28 00 16 00 12 00 6b 00
[65271.235303] mwifiex_sdio mmc2:0001:1: last_cmd_act: 01 00 13 00 01 00 ca c6 01 00
[65271.242862] mwifiex_sdio mmc2:0001:1: last_cmd_resp_index = 4
[65271.248670] mwifiex_sdio mmc2:0001:1: last_cmd_resp_id: 0c 81 28 80 16 80 12 80 6b 80
[65271.256568] mwifiex_sdio mmc2:0001:1: last_event_index = 3
[65271.262131] mwifiex_sdio mmc2:0001:1: last_event: 18 00 0b 00 0a 00 65 00 0a 00
[65271.269514] mwifiex_sdio mmc2:0001:1: data_sent=0 cmd_sent=1
[65271.275248] mwifiex_sdio mmc2:0001:1: ps_mode=1 ps_state=0
[65271.281497] mwifiex_sdio mmc2:0001:1: Ignore scan. Card removed or firmware in bad state
[65271.290880] mwifiex_sdio mmc2:0001:1: ===mwifiex driverinfo dump start===
[65271.317907] mwifiex_sdio mmc2:0001:1: info: MWIFIEX VERSION: mwifiex 1.0 (16.92.21.p76)
[65271.326650] mwifiex_sdio mmc2:0001:1: scan failed: -14
[65271.350746] mwifiex_sdio mmc2:0001:1: SDIO register dump start
[65271.369462] mwifiex_sdio mmc2:0001:1: SDIO Func0 (0x0-0x9): 43 03 02 02 03 02 00 02 03 00
[65271.385505] mwifiex_sdio mmc2:0001:1: SDIO Func1 (0x10-0x17): 00 00 00 00 00 00 e0 ff
[65271.396619] mwifiex_sdio mmc2:0001:1: SDIO Func1: (0x8) c3 (0x58) 00 (0x5c) 48 (0x5d) 00 (0x60) 07 (0x61) 0c (0x62) 00 (0x64) 10 (0x65) 00 (0x66) 00 (0x68) 00 (0x69) 00 (0x6a) 00
[65271.416154] mwifiex_sdio mmc2:0001:1: SDIO Func1 (0xe8-0xf2): dc fe 7e 00 62 00 3f a7 24 14 70
[65271.580586] mwifiex_sdio mmc2:0001:1: SDIO Func1 (0xe8-0xf2): dc fe 8f 00 73 00 3f a7 24 14 70
[65271.594858] mwifiex_sdio mmc2:0001:1: SDIO register dump end
[65271.610712] mwifiex_sdio mmc2:0001:1: ===mwifiex driverinfo dump end===
[65271.628592] mwifiex_sdio mmc2:0001:1: == mwifiex firmware dump start ==
[65271.666427] mwifiex_sdio mmc2:0001:1: Fail to pull ctrl_data
[65271.676062] mwifiex_sdio mmc2:0001:1: firmware dump failed
[65271.693018] mwifiex_sdio mmc2:0001:1: == mwifiex dump information to /sys/class/devcoredump start
[65271.710201] mwifiex_sdio mmc2:0001:1: == mwifiex dump information to /sys/class/devcoredump end
[65271.723737] mwifiex_sdio mmc2:0001:1: PREP_CMD: FW is in bad state
[65271.735173] mwifiex_sdio mmc2:0001:1: info: shutdown mwifiex...
[65271.769056] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[65271.812192] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[65271.855652] Bluetooth: hci0: Frame reassembly failed (-84)
[65271.870925] Bluetooth: hci0: Frame reassembly failed (-84)
[65271.967852] Bluetooth: hci0: Frame reassembly failed (-84)
[65272.068050] Bluetooth: hci0: Frame reassembly failed (-84)
[65272.168010] Bluetooth: hci0: Frame reassembly failed (-84)
[65272.268029] Bluetooth: hci0: Frame reassembly failed (-84)
[65272.368215] Bluetooth: hci0: Frame reassembly failed (-84)
[65272.468007] Bluetooth: hci0: Frame reassembly failed (-84)
[65272.567994] Bluetooth: hci0: Frame reassembly failed (-84)
[65272.668015] Bluetooth: hci0: Frame reassembly failed (-84)
[65272.768055] Bluetooth: hci0: Frame reassembly failed (-84)
[65272.839448] mwifiex_sdio mmc2:0001:1: info: FW download over, size 622240 bytes
[65273.607175] mwifiex_sdio mmc2:0001:1: WLAN FW is active
[65273.641454] mwifiex_sdio mmc2:0001:1: Unknown api_id: 5
[65273.687228] mwifiex_sdio mmc2:0001:1: info: MWIFIEX VERSION: mwifiex 1.0 (16.92.21.p76)
[65273.713221] mwifiex_sdio mmc2:0001:1: driver_version = mwifiex 1.0 (16.92.21.p76)
[65277.145122] mwifiex_sdio mmc2:0001:1: info: trying to associate to bssid ca:39:a3:cb:ad:7e
[65278.668157] mwifiex_sdio mmc2:0001:1: ASSOC_RESP: failed, status code=2 err=0xfffc a_id=0x3fff
[65278.677711] mwifiex_sdio mmc2:0001:1: assoc failure: reason CONNECT_ERR_ASSOC_ERR_TIMEOUT
[65278.691251] mwifiex_sdio mmc2:0001:1: ASSOC_RESP: AUTH timeout
[65278.710528] mwifiex_sdio mmc2:0001:1: info: association to bssid ca:39:a3:cb:ad:7e failed
[65279.781236] mwifiex_sdio mmc2:0001:1: info: trying to associate to bssid ca:c6:5c:cb:ad:7e
[65281.310722] mwifiex_sdio mmc2:0001:1: ASSOC_RESP: failed, status code=2 err=0xfffa a_id=0x3fff
[65281.320307] mwifiex_sdio mmc2:0001:1: assoc failure: reason Unknown connect failure

I found same issue on below github link but it show it is still open
https://www.bing.com/ck/a?!&&p=6f8995a9ee8bc78d51549c45a34f5deee2c26e49fb129fa9306c277b1df3c48cJmltd...

thanks in advance

Re: wifi driver crashes- 88w8997

Hi,

Thank you for the detailed logs. Based on the crash information, we can see you are running firmware version 16.92.21.p76.

Please note that the 88W8997 is no longer included in the standard imx-firmware releases. However, we have a dedicated hotfix branch with the latest firmware available here:

https://github.com/nxp-imx/mwifiex/tree/hotfix/lf-6.12.49_2.2.0_hotfix_w8997
https://github.com/nxp-imx/imx-firmware/tree/hotfix/lf-6.12.49_2.2.0_hotfix_w8997

We recommend upgrading to the firmware available in that branch, which is significantly newer than your current version and includes stability fixes that may address the command timeout and firmware bad state issue you are experiencing.

Regards,
Daniel.