Rock64 random freezes
#1
Hello everyone,

This is my first post, so I'll spare a couple of lines to introduce myself:
I'm a hardware enthusiast, sometimes over my possibilities and capabilities, but that is the way I learn. I like running Linux in every device I have, sometimes just because. But I am far from being a Linux-only kind of guy: there is always room for Windows, OSX and FreeBSD.

I started to be interested in the Rock64 board a couple of months ago when someone introduced me to it. After reading on the forums for a while, I decided to buy it from someone that wasn't going to use it anymore. So far I've tried Debian Stretch and Armbian Ubuntu Bionic 64 images.
I am using it to host small headless server for internal use. The resources I am using are the built-in Ethernet, the CPU, the memory and the SD-Card.

To my surprise, I've been having random freezes with both images for a while. So I decided to debug the freezes by using an external UART to see if messages were dumped to the serial console. (I followed this instructions https://forum.pine64.org/showthread.php?tid=5029 )

These freezes could happen at random times, but mostly when I was interacting with the Rock64 through SSH protocol.
I tried to force this freezes with the stress command: sudo stress -c3 -m3; and succeded.
1-4 seconds after executing the stress command, the Rock64 board would freeze. I reproduced this four times in a row.

Would you think this is a board problem? I'm asking in case I have to ask for a refund from the person I bought the board from.

I'm pasting the kernel messages below for reference.

Salutations to everyone!


Random crash at boot:
https://pastebin.com/BtwZiqXc

First crash induced by stress:
https://pastebin.com/Dxp6SKvT

Second crash induced by stress + temperatures.
https://pastebin.com/5jK74aAP



Images used:
https://github.com/ayufan-rock64/linux-b...m64.img.xz
https://github.com/ayufan-rock64/linux-b...m64.img.xz

PSU:
Original 5v 3A.
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#2
Hi, which image (exactly which version) are you running? ayufan just released new stable
You can find me on IRC, Discord and Twitter


  Reply
#3
(07-01-2019, 05:12 AM)Luke Wrote: Hi, which image (exactly which version) are you running? ayufan just released new stable

Hi Luke,

When I captured the kernel errors above I was using bionic-minimal-rock64-0.7.8-1061-arm64.img.xz .

I may give revision 0.8.3 a go tonight to see if the freezes reproduce on that version.

Regards,
BTB
  Reply
#4
0.7.8 is very old at this point, so granted the nature of the issue is not related to hw then its likely fixed.
You can find me on IRC, Discord and Twitter


  Reply


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