ODroid HC2 becomes unresponsive

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nz_will
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ODroid HC2 becomes unresponsive

Unread post by nz_will » Sat Jun 01, 2019 12:05 pm

I bought an ODroid HC2 about 2 weeks ago (#HK1905186380). I've noticed that after about 24 hours, the board becomes unresponsive. It doesn't respond to ping requests like usual, nor does it respond to HTTP requests or SSH.

System configuration:
  • I'm running Ubuntu 18.04.2 installed from the Hardkernel website.
  • I'm using a class 10 Samsung 32GB micro SD card
  • The connected HDD is a 500GB 3.5" Western Digital WD5000AAJS-22A8B0
Troubleshooting:
  • I've looked through the kernel logs and system logs. I can't see anything interesting, they just stop suddenly, and then show me rebooting.
  • I've cloned the 32GB micro SD card to a 64GB micro SD card (both class 10) in case that was the issue. Despite this, it happened again.
Can anyone suggest what might be wrong here? It's frustrating to have to manually toggle power every day or so.

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Re: ODroid HC2 becomes unresponsive

Unread post by nz_will » Sun Jun 02, 2019 6:08 am

Additional troubleshooting:

I wrote a script that logs the time and pings my router every 10 seconds. When the ODroid becomes unresponsive, it continues to log the time without getting ping responses. Other devices on the network are fine. Could be something to do with the network adapter :/

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tobetter
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Re: ODroid HC2 becomes unresponsive

Unread post by tobetter » Sun Jun 02, 2019 1:00 pm

nz_will wrote:
Sun Jun 02, 2019 6:08 am
Additional troubleshooting:

I wrote a script that logs the time and pings my router every 10 seconds. When the ODroid becomes unresponsive, it continues to log the time without getting ping responses. Other devices on the network are fine. Could be something to do with the network adapter :/
Do you know what color of LEDs are lit and blink when HC2 is running?
Are you able to see the IP for onboard NIC and how its name is configured?
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nz_will (Tue Jun 04, 2019 5:35 pm)

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Re: ODroid HC2 becomes unresponsive

Unread post by nz_will » Tue Jun 04, 2019 5:34 pm

tobetter:
As you can see in this video, the red power light is steady, the green light is steady, the blue light is flashing in a regular pattern of 2 flashes, and the network light is orange and steady.

The network card is configured to use the same IP every time by its MAC address from the DHCP server running on my router.
  • When I try to establish an SSH connection I get connection refused.
  • During this period I get connection refused for SSH and unable to connect for the web server.
  • When I ping it, I get destination host unreachable.
I'm going to mail the board back to Korea tomorrow for Hardkernel to take a look.

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Re: ODroid HC2 becomes unresponsive

Unread post by tobetter » Tue Jun 04, 2019 5:41 pm

nz_will wrote:
Tue Jun 04, 2019 5:34 pm
tobetter:
As you can see in this video, the red power light is steady, the green light is steady, the blue light is flashing in a regular pattern of 2 flashes, and the network light is orange and steady.

The network card is configured to use the same IP every time by its MAC address from the DHCP server running on my router.
  • When I try to establish an SSH connection I get connection refused.
  • During this period I get connection refused for SSH and unable to connect for the web server.
  • When I ping it, I get destination host unreachable.
I'm going to mail the board back to Korea tomorrow for Hardkernel to take a look.
Before you mail the board, can you please make a tarball of the directory /etc and /var in your SD card? Then let me look into the configuration and run on my HC2.

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Re: ODroid HC2 becomes unresponsive

Unread post by nz_will » Tue Jun 04, 2019 5:57 pm

Here's the tarball of /etc, but the /var one is 1GB :shock: Do you still want?
Attachments
etc.tar.gz
(568.34 KiB) Downloaded 5 times

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tobetter
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Re: ODroid HC2 becomes unresponsive

Unread post by tobetter » Tue Jun 04, 2019 5:58 pm

nz_will wrote:
Tue Jun 04, 2019 5:57 pm
Here's the tarball of /etc, but the /var one is 1GB :shock: Do you still want?
Let me see /etc first... 1GB is too huge.

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Re: ODroid HC2 becomes unresponsive

Unread post by nz_will » Tue Jun 04, 2019 6:13 pm

I uploaded my whole /var for you to download in case you decide that you want to. I think the reason it is 1GB is because /var/lib/docker is 2.4GB uncompressed.

Otherwise there's a much less intimidating 6MB tarball of /var/log as well.

P.S.
In case anyone is looking - no there isn't any useful key material in any of these tarballs. You can try find some though, I promise you disappointment.

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Re: ODroid HC2 becomes unresponsive

Unread post by tobetter » Wed Jun 05, 2019 9:04 am

@nz_will, I've tried to run my HC2 with your files but having no issue. I suspected somehow system configuration becomes wrong, I would be wrong. Do you happen to have the USB-to-Serial debugging board? If so it would be very helpful to ping from HC2 to somewhere to verify the network. One doubt in my mind is that some service running on HC2 change the network configuration, so I would suggest to boot with on clean OS plus new SD card.

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