From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ladislav Michl Subject: Re: droid 4: connection refused from voltage_now Date: Wed, 4 Jul 2018 21:45:56 +0200 Message-ID: <20180704194556.GA9189@lenoch> References: <20180704171156.GA3158@amd> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20180704171156.GA3158@amd> Sender: linux-kernel-owner@vger.kernel.org To: Pavel Machek Cc: kernel list , linux-pm@vger.kernel.org, linux-arm-kernel , linux-omap@vger.kernel.org, tony@atomide.com, sre@kernel.org, nekit1000@gmail.com, mpartap@gmx.net, merlijn@wizzup.org List-Id: linux-pm@vger.kernel.org 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@vger.kernel.org as it seems to be subsytem, specific. ladis