On Wed, Jul 04, 2018 at 07:11:56PM +0200, Pavel Machek wrote:

Hi!

I started to use droid 4 as my primary phone... so I have battery
monitor running for hours... Once every few days it dies with
"connection refused" error reading battery's "voltage_now". I restart
it and it continues working...

Ha! What exactly that "connection refused" means? Is it ECONNREFUSED (111)?
I have custom at91 based board here with few custom power supply drivers
and it sometimes ends with voltage_now of my driver being unreadable.
(I modified userspace code and waiting what's in errno in case reading fails)

That was with v4.17; in v4.18, I'm getting "red screen" a lot.

Tests are also done v4.17.
Adding linux-pm at vger.kernel.org as it seems to be subsytem, specific.

	ladis