[XE303C12] linux-armv7: wireless firmware crash

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Hi,
a couple of weeks ago i installed Alarm on a Samsung ARM chromebook
and i'm fully up to date with the system.

I'm experiencing random crashes of the wireless card firmware, as
reported by the system logs, and as directly noticeable since the
wireless interface becomes permanently unaccessible until reboot and
the network connectivity is obviously compromised.
I still haven't found any sort of reproducibility, and crashes really
happen randomly, sometimes as fast as starting the first
internet-based application (may it be pacman, ssh or everything else),
some other times after a longer period of time and some networking...

Due to my recent installation, i just used the latest 3 versions of
this package (currently 4.11.2-1 at the time of this post), so i
cannot say if the wireless driver was working fine with older
releases...

These should be relevant lines from dmesg (ESSID/BSSID edited).
Thanks.

$this->bbcode_second_pass_code('', '
[ +0.000847] mwifiex: rx work enabled, cpus 2
[ +0.004548] mwifiex_sdio mmc2:0001:1: WLAN FW already running! Skip FW dnld
[ +0.000078] mwifiex_sdio mmc2:0001:1: WLAN FW is active
[ +0.057288] mwifiex_sdio mmc2:0001:1: CMD_RESP: cmd 0x242 error, result=0x2
[ +0.000056] mwifiex_sdio mmc2:0001:1: mwifiex_process_cmdresp: cmd 0x242 failed during initialization
[ +0.061907] mwifiex_sdio mmc2:0001:1: info: MWIFIEX VERSION: mwifiex 1.0 (14.66.11.p151)
[ +0.000057] mwifiex_sdio mmc2:0001:1: driver_version = mwifiex 1.0 (14.66.11.p151)
[ +4.157840] mwifiex_sdio mmc2:0001:1: info: trying to associate to 'myssid' bssid 11:22:33:44:55:66
[ +0.043215] mwifiex_sdio mmc2:0001:1: info: associated to bssid 11:22:33:44:55:66 successfully
[ +0.102794] mwifiex_sdio mmc2:0001:1: CMD_RESP: cmd 0x10f error, result=0x2
[May24 16:22] mwifiex_sdio mmc2:0001:1: Firmware wakeup failed
[ +0.000091] mwifiex_sdio mmc2:0001:1: PREP_CMD: FW in reset state
[ +0.000227] mwifiex_sdio mmc2:0001:1: info: shutdown mwifiex...
[ +0.000117] mwifiex: Have pending ack frames!
[ +0.000194] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.007921] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.000056] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.011505] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.000050] mwifiex_sdio mmc2:0001:1: deleting the crypto keys
[ +0.000034] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.000035] mwifiex_sdio mmc2:0001:1: deleting the crypto keys
[ +0.000033] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.000033] mwifiex_sdio mmc2:0001:1: deleting the crypto keys
[ +0.000034] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.000033] mwifiex_sdio mmc2:0001:1: deleting the crypto keys
[ +0.000033] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.000033] mwifiex_sdio mmc2:0001:1: deleting the crypto keys
[ +0.000033] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.000034] mwifiex_sdio mmc2:0001:1: deleting the crypto keys
[ +0.000042] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.000034] mwifiex_sdio mmc2:0001:1: deleting the crypto keys
[ +0.000034] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.000033] mwifiex_sdio mmc2:0001:1: deleting the crypto keys
[ +0.000033] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.000034] mwifiex_sdio mmc2:0001:1: deleting the crypto keys
[ +0.000033] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.000033] mwifiex_sdio mmc2:0001:1: deleting the crypto keys
[ +0.000034] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.000033] mwifiex_sdio mmc2:0001:1: deleting the crypto keys
[ +0.000033] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.000033] mwifiex_sdio mmc2:0001:1: deleting the crypto keys
[ +0.599374] mwifiex_sdio mmc2:0001:1: info: FW download over, size 458108 bytes
[ +0.323769] mwifiex_sdio mmc2:0001:1: WLAN FW is active
[ +0.116731] mwifiex_sdio mmc2:0001:1: CMD_RESP: cmd 0x242 error, result=0x2
[ +0.000051] mwifiex_sdio mmc2:0001:1: mwifiex_process_cmdresp: cmd 0x242 failed during initialization
[ +0.259914] mwifiex_sdio mmc2:0001:1: info: MWIFIEX VERSION: mwifiex 1.0 (14.66.11.p151)
[ +0.000064] mwifiex_sdio mmc2:0001:1: driver_version = mwifiex 1.0 (14.66.11.p151)
[ +4.221465] mwifiex_sdio mmc2:0001:1: info: trying to associate to 'myssid' bssid 11:22:33:44:55:66
[ +1.016803] mwifiex_sdio mmc2:0001:1: ASSOC_RESP: failed, status code=1 err=0xfffc a_id=0x3fff
[ +0.000053] mwifiex_sdio mmc2:0001:1: assoc failure: reason CONNECT_ERR_ASSOC_ERR_TIMEOUT
[ +0.000045] mwifiex_sdio mmc2:0001:1: ASSOC_RESP: UNSPECIFIED failure
[ +0.000057] mwifiex_sdio mmc2:0001:1: info: association to bssid 11:22:33:44:55:66 failed
[ +6.512193] mwifiex_sdio mmc2:0001:1: info: trying to associate to 'myssid' bssid 11:22:33:44:55:66
[ +0.052201] mwifiex_sdio mmc2:0001:1: info: associated to bssid 11:22:33:44:55:66 successfully
[May24 16:23] mwifiex_sdio mmc2:0001:1: mwifiex_cmd_timeout_func: Timeout cmd id = 0x10, act = 0x1
[ +0.000059] mwifiex_sdio mmc2:0001:1: num_data_h2c_failure = 0
[ +0.000039] mwifiex_sdio mmc2:0001:1: num_cmd_h2c_failure = 0
[ +0.000043] mwifiex_sdio mmc2:0001:1: is_cmd_timedout = 1
[ +0.000037] mwifiex_sdio mmc2:0001:1: num_tx_timeout = 0
[ +0.000036] mwifiex_sdio mmc2:0001:1: last_cmd_index = 0
[ +0.000035] mwifiex_sdio mmc2:0001:1: last_cmd_id: 10 00 0c 01 28 00 16 00 12 00
[ +0.000045] mwifiex_sdio mmc2:0001:1: last_cmd_act: 01 00 01 00 13 00 01 00 1c 49
[ +0.000044] mwifiex_sdio mmc2:0001:1: last_cmd_resp_index = 4
[ +0.000038] mwifiex_sdio mmc2:0001:1: last_cmd_resp_id: 0c 81 0c 81 28 80 16 80 12 80
[ +0.000049] mwifiex_sdio mmc2:0001:1: last_event_index = 0
[ +0.000035] mwifiex_sdio mmc2:0001:1: last_event: 58 00 58 00 58 00 58 00 58 00
[ +0.000045] mwifiex_sdio mmc2:0001:1: data_sent=0 cmd_sent=1
[ +0.000035] mwifiex_sdio mmc2:0001:1: ps_mode=1 ps_state=0
[ +0.000085] mwifiex_sdio mmc2:0001:1: ===mwifiex driverinfo dump start===
[ +0.000144] mwifiex_sdio mmc2:0001:1: info: MWIFIEX VERSION: mwifiex 1.0 (14.66.11.p151)
[ +0.000056] mwifiex_sdio mmc2:0001:1: SDIO register dump start
[ +0.000227] mwifiex_sdio mmc2:0001:1: SDIO Func0 (0x0-0x9): 43 03 02 02 03 00 00 02 03 00
[ +0.000186] mwifiex_sdio mmc2:0001:1: SDIO Func1 (0x0-0x9): 02 3f 03 00 02 00 ff ff 5c 00
[ +0.000121] mwifiex_sdio mmc2:0001:1: SDIO Func1: (0x28) 00 (0x30) 08 (0x34) 07 (0x38) 10 (0x3c) 00
[ +0.000191] mwifiex_sdio mmc2:0001:1: SDIO Func1 (0x60-0x6a): dc fe 00 05 00 00 bb 00 dc fe 20
[ +0.100215] mwifiex_sdio mmc2:0001:1: SDIO Func1 (0x60-0x6a): dc fe 00 05 00 00 bb 00 dc fe 20
[ +0.000061] mwifiex_sdio mmc2:0001:1: SDIO register dump end
[ +0.000035] mwifiex_sdio mmc2:0001:1: ===mwifiex driverinfo dump end===
[ +0.000017] mwifiex_sdio mmc2:0001:1: == mwifiex dump information to /sys/class/devcoredump start
[ +0.000830] mwifiex_sdio mmc2:0001:1: == mwifiex dump information to /sys/class/devcoredump end
[ +0.000090] mwifiex_sdio mmc2:0001:1: PREP_CMD: FW is in bad state
[ +0.000249] mwifiex_sdio mmc2:0001:1: info: shutdown mwifiex...
[ +0.000814] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.000337] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.000046] mwifiex_sdio mmc2:0001:1: deleting the crypto keys
[ +0.000036] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.000036] mwifiex_sdio mmc2:0001:1: deleting the crypto keys
[ +0.000035] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.001897] mwifiex_sdio mmc2:0001:1: deleting the crypto keys
[ +0.001958] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.001939] mwifiex_sdio mmc2:0001:1: deleting the crypto keys
[ +0.001954] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.001994] mwifiex_sdio mmc2:0001:1: deleting the crypto keys
[ +0.001937] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.001943] mwifiex_sdio mmc2:0001:1: deleting the crypto keys
[ +0.001928] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.001887] mwifiex_sdio mmc2:0001:1: deleting the crypto keys
[ +0.001867] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.001859] mwifiex_sdio mmc2:0001:1: deleting the crypto keys
[ +0.001823] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.001788] mwifiex_sdio mmc2:0001:1: deleting the crypto keys
[ +0.001779] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.001754] mwifiex_sdio mmc2:0001:1: deleting the crypto keys
[ +0.001724] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.001710] mwifiex_sdio mmc2:0001:1: deleting the crypto keys
[ +0.001685] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.001650] mwifiex_sdio mmc2:0001:1: deleting the crypto keys
[ +0.004071] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.001721] mwifiex_sdio mmc2:0001:1: PREP_CMD: card is removed
[ +0.589783] mwifiex_sdio mmc2:0001:1: info: FW download over, size 458108 bytes
[ +0.325664] mwifiex_sdio mmc2:0001:1: WLAN FW is active
[ +0.000119] mwifiex_sdio mmc2:0001:1: PREP_CMD: FW is in bad state
[ +0.000078] mwifiex_sdio mmc2:0001:1: info: mwifiex_fw_dpc: unregister device
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