Ubuntu server on zero: processes stuck in D state

xxcv

Hi,

I am running "ubuntu server updated:2016-11-24" and my Orange Pi Zero always shows four process in I/O WAIT aka D state:

1. # ps aux
   
2. USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
   
3. root        35  0.0  0.0      0     0 ?        D    Dec10   0:33 [usb-hardware-sc]
   
4. root        58  0.0  0.0      0     0 ?        D    Dec10   0:00 [vsync proc 0]
   
5. root        59  0.0  0.0      0     0 ?        D    Dec10   0:00 [vsync proc 1]
   
6. root        63  0.0  0.0      0     0 ?        D    Dec10   0:00 [schw]
   
7. ... snip....
   
8. 
   
9. # uptime
   
10. 10:59:17 up 1 day, 23:14,  1 user,  load average: 4.81, 4.72, 4.69
    
11. 
    
12. # uname -a
    
13. Linux OrangePi 3.4.39 #46 SMP PREEMPT Wed Nov 9 09:50:08 CST 2016 armv7l armv7l armv7l GNU/Linux

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This is very inconvenient because of invalid load reported in uptime or top command

Is there a way to fix this?

Thanks

shooreg

Most likely it is a misconfig in platform hardware. Buggy USB otg port did the same thing on A10-A20 devices.
For H3 chips platform config is done by modifying script.bin (*.fex then fex2bin) and placing it to a boot partition.
I don't have OPI zero, so I don't know what do you have to modify for H2+ platform.
The other suggestion - maybe you should try a mainline kernel...

xxcv

Flashed Armbian Xenial - issue resolved