Hi, I am running 4G LTE (USB protocol) and WiFi on IMX6 board, the kernel is 4.19.75 LTE. It is not clear where the kernel alignment trap came from, the only thing I could see is the alignment trap message generated immediate after USB GSM communication or mwifiex_sdio. Where that the alignment trap came from? Which parts of the program could contribute the kernel alignment trap, kernel iteself, or USB GSM or mwifiex_sdio? Appreciate clues how to fix it. Nov 20 05:08:09 solar kernel: usb 1-1: GSM modem (1-port) converter now attached to ttyUSB0 Nov 20 05:08:09 solar kernel: option 1-1:1.2: GSM modem (1-port) converter detected Nov 20 05:08:09 solar kernel: usb 1-1: GSM modem (1-port) converter now attached to ttyUSB1 Nov 20 05:08:10 solar kernel: mwifiex_sdio mmc0:0001:1: info: trying to associate to 'Solar Analytics Wifi' bssid 78:8a:20:49:4b:c5 Nov 20 05:08:10 solar kernel: mwifiex_sdio mmc0:0001:1: info: associated to bssid 78:8a:20:49:4b:c5 successfully Nov 20 05:08:10 solar kernel: IPv6: ADDRCONF(NETDEV_CHANGE): mlan0: link becomes ready Nov 20 05:23:13 solar kernel: mwifiex_sdio mmc0:0001:1: info: successfully disconnected from 78:8a:20:49:4b:c5: reason code 3 Nov 20 05:23:13 solar kernel: IPv6: ADDRCONF(NETDEV_UP): mlan0: link is not ready Nov 20 05:23:18 solar kernel: Alignment trap: not handling instruction e8532f00 at [<b6c802b6>] Nov 20 05:23:18 solar kernel: Unhandled fault: alignment exception (0x001) at 0x38626667 Nov 20 05:23:18 solar kernel: pgd = 34bdb7e7 Nov 20 05:23:18 solar kernel: [38626667] *pgd=00000000 Thank you. Kind regards, - jh
