Hello
I'm messing around with a sercomm na930. I can see that it is supported since a while, but it doesn't work on my side. The only OpenWrt versions that works are the 17-ish (), and some generic firmwares, but not the sercomm na930 specific.
Here is the stack trace when I try to flash the firmware fia TFTP :
[ 8.781486] CPU 0 Unable to handle kernel paging request at virtual address 000001d0, epc == 8037a03c, ra == 803647c8
[ 8.802622] Oops[#1]:
[ 8.807142] CPU: 0 PID: 248 Comm: kworker/0:3 Not tainted 5.10.146 #0
[ 8.819974] Workqueue: events_power_efficient 0x803618dc
[ 8.830551] $ 0 : 00000000 00000001 806c362c 80dae85c
[ 8.840965] $ 4 : 8168c800 00000000 00000000 80364790
[ 8.851378] $ 8 : 815a3a0c 815a3a0c 815a3a00 00000200
[ 8.861791] $12 : 815a3a0c 00000008 00000000 80640fc8
[ 8.872204] $16 : 00000004 8168ce0c 8168c800 0000000a
[ 8.882617] $20 : 000003e8 00000064 00000001 8168ccc0
[ 8.893032] $24 : 8063723c 00000000
[ 8.903445] $28 : 815e0000 815e1dc8 80640000 803647c8
[ 8.913859] Hi : 00133d10
[ 8.919580] Lo : 1879ac0a
[ 8.925304] epc : 8037a03c 0x8037a03c
[ 8.932932] ra : 803647c8 0x803647c8
[ 8.940559] Status: 1100a402 KERNEL EXL
[ 8.948369] Cause : 00800008 (ExcCode 02)
[ 8.956342] BadVA : 000001d0
[ 8.962064] PrId : 00019650 (MIPS 24KEc)
[ 8.970036] Modules linked in: leds_gpio gpio_button_hotplug crc32c_generic
[ 8.983915] Process kworker/0:3 (pid: 248, threadinfo=(ptrval), task=(ptrval), tls=00000000)
[ 9.000716] Stack : 8168d000 00000005 0000000a 82905ec0 fffffffb 815a3800 8168c800 815a3a70
[ 9.017376] 815a3800 8168c800 00000000 806b0000 fffffffe 803647c8 8063fc60 82905ef0
[ 9.034037] 00001200 00000000 815a3800 815a3800 00000000 8035ff6c 815a3800 8035ffa4
[ 9.050697] 814a0d1d 00000120 815a3a44 00000003 815a3a70 80361954 8063f160 82905ec0
[ 9.067357] 8142e3e0 80637260 82905ec0 0057d7fc 815a3a44 814fc380 00000000 81000600
[ 9.084018] ...
[ 9.088879] Call Trace:
[ 9.088893] [<803647c8>] 0x803647c8
[ 9.100681] [<8035ff6c>] 0x8035ff6c
[ 9.107618] [<8035ffa4>] 0x8035ffa4
[ 9.114555] [<80361954>] 0x80361954
[ 9.121492] [<8003dacc>] 0x8003dacc
[ 9.128429] [<8003debc>] 0x8003debc
[ 9.135365] [<8003dd3c>] 0x8003dd3c
[ 9.142302] [<8003dd3c>] 0x8003dd3c
[ 9.149238] [<800441c8>] 0x800441c8
[ 9.156174] [<8004408c>] 0x8004408c
[ 9.163110] [<8004408c>] 0x8004408c
[ 9.170046] [<800025f8>] 0x800025f8
[ 9.176988]
[ 9.179939] Code: 1060fff7 00000000 8c450000 <94a301d0> 30631000 1460ffe2 8ca401e0 8ca301d0 8e260000
[ 9.199380]
[ 9.202405] ---[ end trace a159549650a1e886 ]---
[ 9.211609] Kernel panic - not syncing: Fatal exception
Any help on this would be appreciated
thanks