Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757286Ab1DOViT (ORCPT ); Fri, 15 Apr 2011 17:38:19 -0400 Received: from ksp.mff.cuni.cz ([195.113.26.206]:40826 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1757123Ab1DOViS (ORCPT ); Fri, 15 Apr 2011 17:38:18 -0400 Date: Fri, 15 Apr 2011 23:38:17 +0200 From: Cyril Hrubis To: Pavel Machek Cc: rpurdie@rpsys.net, lenz@cs.wisc.edu, kernel list , arminlitzel@web.de, thommycheck@gmail.com, linux-arm-kernel , dbaryshkov@gmail.com, omegamoon@gmail.com, eric.y.miao@gmail.com, utx@penguin.cz, zaurus-devel@www.linuxtogo.org, Marek Vasut Subject: Re: Zaurus CF tests -- ok Message-ID: <20110415213817.GC4420@atrey.karlin.mff.cuni.cz> References: <20110415211822.GB21111@atrey.karlin.mff.cuni.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20110415211822.GB21111@atrey.karlin.mff.cuni.cz> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1413 Lines: 36 Hi! > After getting _good_ power supply, I was able to untar and rm ltp tree > 100 times so far. 2.6.38, ext3. (So metan no, I do not see any weird > ext3 problems). Hmm, I'm using original adapter, but who knows if it's okay to use... > Another strange thing is... I see lots of duplicated keystrokes -- > like type "pavel" but machine understands "paavel". But it only seems > to happen when I'm _not_ trying to debug it?! That seems to be side effect of machine under load (it has gpio keyboard). > ( > So... just because something needs 5V does not mean you should charge > it from USB. > > Yes, I'm talking about zaurus. I noticed that it crashed rather > quickly when connected to USB power. (For example in tar/rm test). > So I took multimeter, and there was 4.15..4.5V on USB :-(. > > With power from USB extension cable, it crashes in <5 minutes. It > seems to toggle charger a lot, as voltage on the cable is only > 4.2..4.5V. I guess it is software problem in the charging code. > ) The zaurus actually is AFAIK unable to run from battery when connected to the external power, so weak power line may explain some of the strange behaviour. -- metan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/