I've had the Ubuntu version of Armbian 4.3 running for more than two years 24/7 on my Banana Pi without any flaws (thanks to the Armbian team for their great work). Latest kernel version was 4.8.4.
I'm using the Banana Pi mainly as a file server plus running the great little utily "udpxy" (multicast to unicast converter for IP-TV). udpxy took normally about 8% of the CPU, the rest was negligible, except during intense network traffic via samba.
A few days ago I decided to give Debian mainline a try.
The fresh setup of version 5.38 was immediately upgraded to 5.41. Running "top" I discovered, that kworker processes used up to 20% of the CPU and a relative high CPU temperature (about 48°C); after less than an hour the TV screen froze and the box needed a hard reset.
I found this thread and tried a downgrade to version 5.35. The CPU usage of kworkers appeared to be a bit lower, but there was still the high CPU temperature, CPU freq constantly at 960MHz, and after half an hour the dreaded freeze occurred again.
So I took the next step down to version 5.31. Apparently the issues are gone now. No bloated kworker processes, low CPU temperature, lower CPU idle frequency (528MHz), no freeze. Looks good, the box is up for several day now without a problem.
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In short: 5.31 (with Kernel 4.11.5-sunxi) works fine for me, so something bad might have happened on the way to 5.35.
