Hello everyone.

 

My OP-PC is dead, with NO HDMI signal, NO console output, NO network output (LEDs off), only 1 LED is on which indicates SD card inserted (if SD card removes, it off).

when use newly created SD card with Armbian, SDcard OS partition not resized.

when connect to power supply,  I can hear current noise.

 

before it dies, it runs armbian server image with mainline kernel (4.14), it doesn't look like thermal fail, due to it runs very well during summer.

 

I guess it is shorted some place, but I can't find where!

 

so which hardware test point could I use to detects hardware failurtes.

 

 

OK, I use wrong pins for console, after use right one, I get below info from console:

 

switch to partitions #0, OK
mmc0 is current device                                                                      
Scanning mmc 0:1...                                                                         
Found U-Boot script /boot/boot.scr                                                          
3708 bytes read in 13 ms (278.3 KiB/s)                                                      
## Executing script at 43100000
U-boot loaded from SD
Boot script loaded from mmc
154 bytes read in 10 ms (14.6 KiB/s)
5218884 bytes read in 267 ms (18.6 MiB/s)
4654496 bytes read in 242 ms (18.3 MiB/s)
Found legacy kernel configuration
34984 bytes read in 42 ms (812.5 KiB/s)
## Loading init Ramdisk from Legacy Image at 43300000 ...
   Image Name:   uInitrd
   Image Type:   ARM Linux RAMDisk Image (gzip compressed)
   Data Size:    5218820 Bytes = 5 MiB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK

Starting kernel ...

[sun8i_fixup]: From boot, get meminfo:
        Start:  0x40000000
        Size:   1024MB
ion_carveout reserve: 160m@0 256m@0 130m@1 200m@1
ion_reserve_select: ion chipid  [0x2c00081!
ion_reserve_common: ion reserve: [0x50000000, 0x60000000]!
Loading, please wait...
starting version 229  <<== stopped...

 

I will try new sdcard.

It may be your power adapter is not provide enough power. You can check voltage on pin 2 (+) and pin 6 (ground) with multi-meter. Your power adapter is not good enough if voltage is below 5 volt.

thanks @tommy

 

I will try this way, but I use 5V power supply provided by Xunlong, the board maker. maybe it's broken.

 

and how could I print more logs to console? I have already modified loglevel to 7, but nothing more, I think they are printed to some other console, right?

 

 

 

On 11/26/2018 at 11:44 AM, ning said:

when connect to power supply,  I can hear current noise.

Which power port do you use? The power port beside the HDMI port or the MicroUSB-Port?

Today I reconnected my OPi PC with the Power-Port to USB-cable to a Multi-Charger where it did work many times (like now) without problems.

Did you try another power-supply?

I did compile the new DEV-image Armbian_5.67_Orangepipc_Debian_stretch_dev_4.19.4 with the armbian-build-system
and it work fine
ARMBIAN 5.67 user-built Debian GNU/Linux 9 (stretch) 4.19.4-sunxi
Linux opi-pc 4.19.4-sunxi #3 SMP Tue Nov 27 12:12:54 +03 2018 armv7l GNU/Linux

The OPi PC isnt very power hungry

 

I use this power adapter,  if it is power supply issue, can I use 2 power supply at same time? power adapter + USB supply?

 

I have tried 2 sdcards, legacy and next images. still can't more logs from console.

You may check by trying fresh install armbian. If armbian boot normally then try check your micro sd.  You can check Micro SD card by using Linux OS filesystem check ( $ e2fsck -p /dev/sda1 ). 

 

After check micro sd util sure it not micro sd problem. Then your power adapter or your board has some problems.

 

No, dont't use 2 power adapter at the same. 

finally, I can set loglevel to 7

and get detail error:

 

[    6.005126] random: systemd-udevd: uninitialized urandom read (16 bytes read)
[    6.011337] random: udevadm: uninitialized urandom read (16 bytes read)
[    6.013059] random: udevadm: uninitialized urandom read (16 bytes read)
[    6.329864] Bad mode in data abort handler detected
[    6.334753] Internal error: Oops - bad mode: 0 [#1] SMP THUMB2
[    6.340577] Modules linked in:
[    6.343634] CPU: 2

 

[    6.004762] random: systemd-udevd: uninitialized urandom read (16 bytes read)
[    6.011085] random: udevadm: uninitialized urandom read (16 bytes read)
[    6.012778] random: udevadm: uninitialized urandom read (16 bytes read)
[    6.332071] Unable to handle kernel paging request at virtual address af034574
[    6.339293] pgd = c9c68000
[    6.342013] [af034574] *pgd=00000000
[    6.345592] Internal error: Oops: 5 [#1] SMP THUMB2
[    6.350462] Modules linked in:
[    6.353518] CPU: 3 PID: 148 Comm: systemd-udevd Not tainted 4.14.78-sunxi #412
[    6.360728] Hardware name: Allwinner sun8i Family
[    6.365426] task: ef162700 task.stack: c9c64000
[    6.369959] PC is at lock_page_memcg+0x10/0x60
[    6.374401] LR is at page_add_file_rmap+0xf/0x88
[    6.379012] pc : [<c021ce1c>]    lr : [<c0206863>]    psr: 60060133
[    6.385268] sp : c9c65db8  ip : 000105df  fp : 0000000d
[    6.390484] r10: c9c65e54  r9 : 00000000  r8 : ee156000
[    6.395702] r7 : 00000000  r6 : efff5d34  r5 : c9c65e54  r4 : af034400
[    6.402218] r3 : efff5d34  r2 : 00000001  r1 : 00000000  r0 : efff5d34
[    6.408737] Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA Thumb  Segment none
[    6.416035] Control: 50c5387d  Table: 49c6806a  DAC: 00000051
[    6.421772] Process systemd-udevd (pid: 148, stack limit = 0xc9c64210)
[    6.428289] Stack: (0xc9c65db8 to 0xc9c66000)
[    6.432641] 5da0:                                                       efff5d34 c9c65e54
[    6.440810] 5dc0: efff5d34 c0206863 7fe2559f c01fffa1 ffece28c 00000000 ee8d75a0 efff5d34
[    6.448978] 5de0: c0d03f48 ee8d55f4 0000000b c9c65e54 0000000d c01d742d 0000000a ee0a40c0
[    6.457147] 5e00: effde1cc 0000000b 00000040 00000040 ee8d7560 28de9f60 00000000 0000000d
[    6.465315] 5e20: b6e98000 c0d03f48 00000040 c01d71f9 b6e9e000 c9c65e54 00000000 c02007d3
[    6.473484] 5e40: eec04770 c0a703ac 00080040 00080060 00000010 ee156000 00000054 014200c2
[    6.481652] 5e60: 00000006 b6ea3000 c9c6adb8 c9c6adb8 00000000 00000000 00000000 00000000
[    6.489821] 5e80: ffece28c effde1e8 00000000 28de9f60 b6e9e794 c9c65fb0 ef162700 ee0d5880
[    6.497990] 5ea0: 80000007 b6e9e794 00000054 ee0d58bc ee156000 c0110b75 ee4eb2c0 00000010
[    6.506158] 5ec0: 00000002 00000040 00000000 00000000 00000000 c9c65ed8 ef6d91f8 c0d03f48
[    6.514327] 5ee0: c0d096f4 00000007 c0110a9d b6e9e794 c9c65fb0 beb7f878 00461110 c01012e9
[    6.522495] 5f00: ffffffff 0137adc0 ee546000 00000000 c0d04578 00000002 ffffff9c 00000000
[    6.530664] 5f20: c9c65f58 28de9f60 0137adc0 0137adc0 beb7fe48 00000000 00000000 c9c65f68
[    6.538832] 5f40: c9c65f58 c023579f c9c65f68 c9c65f58 c0d03f48 00000000 00000000 00000000
[    6.547001] 5f60: 00000000 28de9f60 013778a0 ffffe000 00000000 c9c65fb0 c9c65f90 28de9f60
[    6.555169] 5f80: c9c64000 0137adc0 beb7fe48 28de9f60 0000000a b6e9e794 60060030 ffffffff
[    6.563338] 5fa0: 50c5387d 50c5387d 00000000 c010ac3b 0136e090 beb7fab6 beb7f878 0046195c
[    6.571506] 5fc0: beb7fab6 beb7fab6 0136fb88 beb7f8b4 00461110 00000000 beb7f878 00461110
[    6.579674] 5fe0: 00460f98 beb7f850 0043c291 b6e9e794 60060030 ffffffff 00000000 00000000
[    6.587856] [<c021ce1c>] (lock_page_memcg) from [<c0206863>] (page_add_file_rmap+0xf/0x88)
[    6.596115] [<c0206863>] (page_add_file_rmap) from [<c01fffa1>] (alloc_set_pte+0x99/0x248)
[    6.604375] [<c01fffa1>] (alloc_set_pte) from [<c01d742d>] (filemap_map_pages+0x235/0x258)
[    6.612633] [<c01d742d>] (filemap_map_pages) from [<c02007d3>] (handle_mm_fault+0x61f/0x8b4)
[    6.621063] [<c02007d3>] (handle_mm_fault) from [<c0110b75>] (do_page_fault+0xd9/0x230)
[    6.629061] [<c0110b75>] (do_page_fault) from [<c01012e9>] (do_PrefetchAbort+0x39/0x88)
[    6.637058] [<c01012e9>] (do_PrefetchAbort) from [<c010ac3b>] (__pabt_usr+0x5b/0x5c)
[    6.644788] Exception stack(0xc9c65fb0 to 0xc9c65ff8)
[    6.649834] 5fa0:                                     0136e090 beb7fab6 beb7f878 0046195c
[    6.658003] 5fc0: beb7fab6 beb7fab6 0136fb88 beb7f8b4 00461110 00000000 beb7f878 00461110
[    6.666170] 5fe0: 00460f98 beb7f850 0043c291 b6e9e794 60060030 ffffffff
[    6.672779] Code: f3af 8000 6a04 b1cc (f8d4) 3174
[    6.677579] ---[ end trace eb14348a8ad35870 ]---

[    6.332071] Unable to handle kernel paging request at virtual address af034574

 

address lower than C0000000 is userspace virtual address, why kernel will request userspace address?

I guess memory is broken. or power supply around memory chip is not stable. still need to check power.

 

does anyone know how to check power supply for DDR?

 

@ning did you use a old armbian image or did you download a new one?

which name has it or from which url did you download the image?

@guidol new armbian image from https://www.armbian.com/download/

7 minutes ago, ning said:

@guidol new armbian image from https://www.armbian.com/download/

sure  but which one in detail?

 

when system booting to userspace, we can see a voltage drop, about 1.5V.

but when I add "rdinit=/bin/sh", system works fine.

 

next setp I will find a DC power supply, and which GPIO pin is for power supply? pin4? pin2?

 

 

done, power adapter is broken.

 

@tommy@guidol thank you.