From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753469Ab0CUUkl (ORCPT ); Sun, 21 Mar 2010 16:40:41 -0400 Received: from ksp.mff.cuni.cz ([195.113.26.206]:48618 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752730Ab0CUUkj (ORCPT ); Sun, 21 Mar 2010 16:40:39 -0400 Date: Sun, 21 Mar 2010 21:40:32 +0100 From: Pavel Machek To: Stanislav Brabec Cc: Cyril Hrubis , Eric Miao , rpurdie@rpsys.net, lenz@cs.wisc.edu, kernel list , Dirk@opfer-online.de, arminlitzel@web.de, thommycheck@gmail.com, linux-arm-kernel , dbaryshkov@gmail.com, omegamoon@gmail.com, zaurus-devel@www.linuxtogo.org Subject: Re: bit errors on spitz Message-ID: <20100321204032.GL1933@elf.ucw.cz> References: <20100305212708.GC21773@elf.ucw.cz> <20100308072858.GA29939@atrey.karlin.mff.cuni.cz> <20100308082530.GA1982@atrey.karlin.mff.cuni.cz> <1268048916.6477.9.camel@utx.utx.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1268048916.6477.9.camel@utx.utx.cz> X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon 2010-03-08 12:48:36, Stanislav Brabec wrote: > Cyril Hrubis wrote: > > > Well I've seen empty lines when editing file with vim > > And I have seen: > > - Unreproducible SIGSEGV of gcc (while Wi-Fi connection over CF card was > running). > - Unreproducible SIGSEGV of opkg (downloading via Wi-Fi connection over > CF card). > - Unreproducible SIGSEGV of rm (called from find command launched via > ssh, networking via Wi-Fi connection over CF card). > (Hint: Tasks above are HDD-intensive.) > - Lost blocks while copying from CF to SD. > - Lost blocks while copying from HDD to SD. > - Lost blocks while copying from CF to USB flash stick. > - And I see display noise while CF Wi-Fi card is active. > > These problems appear in all kernels, at least since 2.6.26. > > There is no note in the syslog. Interesting, I get memory corruption leading to strange behaviour. Sometimes echo 3 > /proc/sys/vm/drop_caches helps... Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html