Hi,
Seems that it913x driver is broken on solo2. if it913x card in inserted during boot it stops booting. If it is inserted after module crashes during the attempt to attach frontend. Same device works fine under x86 linux.
usb 2-1: new high-speed USB device number 2 using ehci-brcm
it913x: Chip Version=02 Chip Type=9135
it913x: Dual mode=0 Tuner Type=38
it913x: Unknown tuner ID applying default 0x60
dvb-usb: found a 'ITE 9135 Generic' in cold state, will try to load a firmware
dvb-usb: downloading firmware from file 'dvb-usb-it9135-02.fw'
it913x: FRM Starting Firmware Download
it913x: FRM Firmware Download Completed - Resetting Device
it913x: Chip Version=02 Chip Type=9135
it913x: Firmware Version 52887808
dvb-usb: found a 'ITE 9135 Generic' in warm state.
dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer.
DVB: registering new adapter (ITE 9135 Generic)
CPU 1 Unable to handle kernel paging request at virtual address 01388004, epc == 80071250, ra == 80073de8
Oops[#1]:
Cpu 1
$ 0 : 00000000 10108b00 01388004 01388000
$ 4 : ee388480 00000000 80629ebc ffffffff
$ 8 : 00000004 81a00000 00000357 cfc3a000
$12 : 00000001 bd3af235 f7537e82 00000001
$16 : 80630000 cee0a700 00000001 cee0a724
$20 : ee3884c8 000003e8 00000124 ee388480
$24 : 5c2728ea 80056070
$28 : c7514000 c7515e78 80071540 80073de8
Hi : 00000008
Lo : c2fb7dc0
epc : 80071250 module_put+0x30/0x5c
Tainted: P O
ra : 80073de8 sys_init_module+0x10e4/0x1db4
Status: 10108b03 KERNEL EXL IE
Cause : 00800008
BadVA : 01388004
PrId : 00025a11 (Brcm4380)
Modules linked in: it913x_fe dvb_usb_it913x(+) ipv6 dvb_usb_rtl2832 dvb_usb fpga_directc(PO) brcmfb(O) dvb_bcm7356(PO) procmk(O)
Process modprobe (pid: 526, threadinfo=c7514000, task=ceb491f8, tls=7731c910)
Stack : ee38848c 00000008 cedc3880 ced45d4c ee38848c 800aa63c ee376000 000095b4
ee37da54 ee37d970 ee37e4cc 000075b0 000076f0 00000000 00000000 00000017
00000018 00000010 00000000 0000000a 00000000 ee382fc4 00000001 00000000
00000000 00000000 00000000 77110000 8062582c 00000006 805a67a4 8052d050
805a66c4 00000014 00000006 00000000 00424e18 00424e40 00424f50 772d55ac
...
Call Trace:
[<80071250>] module_put+0x30/0x5c
[<80073de8>] sys_init_module+0x10e4/0x1db4
[<8000d7e8>] stack_done+0x20/0x44
Code: 8c820138 24420004 00431021 <8c430000> 24630001 ac430000 8c830000 24020002 10620003
---[ end trace 9f74773b4936e3ad ]---
CPU 1 Unable to handle kernel paging request at virtual address 01388000, epc == 80071b40, ra == ee23de98
Oops[#2]:
Cpu 1
$ 0 : 00000000 00000000 ee382fc4 01388000
$ 4 : 01388000 00000004 00000001 00000008
$ 8 : ceec1fe0 00008b00 00000000 c7512000
$12 : 000000e5 00000000 00000000 00000001
$16 : cedea400 cee1e974 cef45580 00000080
$20 : 00003fe4 ee240000 00003fe4 80071ae0
$24 : 00000000 80056070
$28 : ceec0000 ceec1bf0 00000010 ee23de98
Hi : 00000008
Lo : cbcdcac0
epc : 80071b40 __symbol_get+0x60/0x8c
Tainted: P D O
ra : ee23de98 it913x_frontend_attach+0x28c/0x3dc [dvb_usb_it913x]
Status: 10108b03 KERNEL EXL IE
Cause : 00800008
BadVA : 01388000
PrId : 00025a11 (Brcm4380)
Modules linked in: it913x_fe dvb_usb_it913x(+) ipv6 dvb_usb_rtl2832 dvb_usb fpga_directc(PO) brcmfb(O) dvb_bcm7356(PO) procmk(O)
Process modprobe (pid: 516, threadinfo=ceec0000, task=ceee3a98, tls=77302910)
Stack : ceec1c20 803cbd4c 805e8e6c cedea400 00000001 cef45580 ee388480 00003fe4
ee240000 ee23de98 cee1e974 00000000 00000000 00000008 cee1ea50 edc9b508
edca0000 cee1ea3c cee1e974 cee1e974 00000000 cee1e974 803d0000 edc99560
edc995e0 cee1ea3c cee1e9ac edc99a5c edca0000 cee1e974 cee1e974 8052119c
00000000 cee1e974 cee1e000 80521178 800c0000 edc9b508 edca0000 edc98b28
...
Call Trace:
[<80071b40>] __symbol_get+0x60/0x8c
[<ee23de98>] it913x_frontend_attach+0x28c/0x3dc [dvb_usb_it913x]
[<edc99a5c>] dvb_usb_adapter_frontend_init+0xe4/0x1cc [dvb_usb]
[<edc98b28>] dvb_usb_device_init+0x504/0x6cc [dvb_usb]
[<ee23d048>] it913x_probe+0x40/0x8c [dvb_usb_it913x]
[<8039cc48>] usb_probe_interface+0xf8/0x228
[<802f9b30>] driver_probe_device+0xd8/0x2a4
[<802f9e1c>] __driver_attach+0xbc/0xc4
[<802f7d40>] bus_for_each_dev+0x64/0xac
[<802f91f8>] bus_add_driver+0xc8/0x2c8
[<802fa664>] driver_register+0x9c/0x1bc
[<8039b8d8>] usb_register_driver+0x88/0x1d0
[<80001574>] do_one_initcall+0x164/0x1f0
[<80073d94>] sys_init_module+0x1090/0x1db4
[<8000d7e8>] stack_done+0x20/0x44
Code: 8c840000 8c630138 00641821 <8c640000> 24840001 ac640000 8fbf0024 8c420000 03e00008
---[ end trace 9f74773b4936e3ae ]---