OPi Zero: Unreliable Ethernet with 5.3.x (but 4.19.62 works)

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Using the latest Armbian release (19.11.3) on OPi Zero (512MB, board revision 1.5) I have a strange issue. On kernel 5.3.x, Ethernet connectivity drops sporadically, around once every couple of minutes, for typically 10 seconds or so and then recovers. When the drop happens, a ping from another machine on the network produces 'no route to host' - then after around 10 seconds or so the network comes back up. The OPi Zero continues running normally during the 'outage', without functional network access. There is nothing in the dmesg log when this happens.


Switching to kernel 4.19.62 from armbian-config, everything works perfectly. Back to 5.3.x, the issue starts again.


Has anyone seen a similar issue and/or has a fix? Thank you!



Board: Orangepi Zero
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Armbian is a community driven open source project. Do you like to contribute your code?

@Werner - are you saying that you get correct thermal readouts with armbianmonitor on OPi Zero LTS? I definitely don't!


Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
11:21:33:  480MHz  0.05   8%   4%   4%   0%   0%   0% -737°C  0/4
11:21:38:  480MHz  0.05   8%   4%   3%   0%   0%   0% -495°C  0/4
11:21:43:  480MHz  0.04   6%   4%   2%   0%   0%   0%  2.2°C  0/4
11:21:49:  480MHz  0.04   7%   4%   2%   0%   0%   0%  474°C  0/4
11:21:54:  480MHz  0.04   8%   4%   3%   0%   0%   0%  -11°C  0/4
11:21:59:  480MHz  0.03   7%   3%   3%   0%   0%   0%  2.4°C  0/4


Everything works fine for me with the non-LTS boards.



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