From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6D6CCC10F06 for ; Thu, 28 Mar 2019 20:04:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3E82D2173C for ; Thu, 28 Mar 2019 20:04:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1553803477; bh=rLNyC3bikETWFYgDZih39XlXJb2rdBk7aUBhoO1YTN8=; h=Date:From:To:Cc:Subject:In-Reply-To:References:List-ID:From; b=y08yidfZi3dtJRScm/YxLZ5qkGD1RdZTs+sK8nDtEvf1OVVZKmSgW7nmaIFoEZkEL 44fNPc4LHwrM+x5kl1NamchKmwSkqlKMcA+/gEliebZz94dkyeZFKwnl/z24Tm9IsD L1UgcqK8xNzcAgqIdYRr1NEJDiRogrp5KQv+lN5A= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726180AbfC1UEg (ORCPT ); Thu, 28 Mar 2019 16:04:36 -0400 Received: from casper.infradead.org ([85.118.1.10]:60696 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726136AbfC1UEf (ORCPT ); Thu, 28 Mar 2019 16:04:35 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:Content-Type: MIME-Version:References:In-Reply-To:Message-ID:Subject:Cc:To:From:Date:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=2+elwt3uF+8XIr2FWOchhqe0TNM8KMg7cs9XRwNSTwE=; b=X00z0qmevLS4rUwF0A+ai2jXT3 XqLLeBB758r5ghlrhn+IAMX6Q7ezbvg1GS4JGtgFLq/wrXbOVwbYb7AkdCeUnbAovUWu5pcmAOgxi DKsEjNM31FNRyl4khh/9MaXqIQ0vyMPDBkZjICq46NgX5skEK3gl/C2FkEkfs/yBT6IfwwksFvTap gWVF4Yy64oI4tA6H1RLktTYMYnXw1sAwKOb2BcC3ZXbSkGKhsnZ5Sq9yINYKGmL0+OLRpYOr9eNwm 5mK2xS2dskNWrRjkxzY2YCWPNJCUO2rUNywPrccrBaiQoJmV9CKADy/mHiLfefRIegkjGFaIxUJ7X l2QZFOIQ==; Received: from [179.183.99.176] (helo=coco.lan) by casper.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1h9bGL-0004mA-4P; Thu, 28 Mar 2019 20:04:33 +0000 Date: Thu, 28 Mar 2019 17:04:29 -0300 From: Mauro Carvalho Chehab To: Gregor Jasny Cc: Samuel CHEMLA , Sean Young , Linux Media Mailing List , Mauro Carvalho Chehab Subject: Re: [Bug report] dvbv5-zap crash dvb-tool ARMHF builds Message-ID: <20190328170429.2ad3a7f4@coco.lan> In-Reply-To: <62429f4e-eabb-8ee9-4137-47540e8131ef@googlemail.com> References: <20190315223425.hiq3qcjhjnirsizh@gofer.mess.org> <20190317065242.137cb095@coco.lan> <20190319164507.7f95af89@coco.lan> <20190321094127.ysurm4u26zugmnmv@gofer.mess.org> <20190321083044.621f1922@coco.lan> <35ba4e81-fc2a-87ed-8da7-43cc4543de51@googlemail.com> <20190325140838.71f88eac@coco.lan> <20190326132643.r3svehoa764xagje@gofer.mess.org> <20190326123115.5d83f450@coco.lan> <20190328161758.2da2bf4e@coco.lan> <62429f4e-eabb-8ee9-4137-47540e8131ef@googlemail.com> X-Mailer: Claws Mail 3.17.3 (GTK+ 2.24.32; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Em Thu, 28 Mar 2019 20:48:34 +0100 Gregor Jasny escreveu: > Hello, > > On 28.03.19 20:17, Mauro Carvalho Chehab wrote: > > Em Thu, 28 Mar 2019 19:48:35 +0100 > > Samuel CHEMLA escreveu: > >> 1) I did reproduce the bug with a serial console, but the serial > >> console was also frozen, and there was no message before freeze. > > > > The only way for a machine to freeze even on serial console is due to > > a very serious Kernel or hardware bug, like a bad lock/semaphore. > > Does anything speak against upgrading Debian to latest 1.16.5 release? I don't think so. The changes we did were just at memory allocation/free with standard glibc malloc()/calloc()/free() functions. The kind of errors Samuel are experiencing are machine freezes. dvbv5-utils can't cause such kind of errors, as it doesn't run in privileged mode, nor do anything potentially harmful. So, even the most serious issue there won't cause a machine crash. For a machine to crash, it has to be triggering a Kernel bug or some memory corruption outside its memory space (e.g. triggering some glibc bug - with also seems very unlikely). Thanks, Mauro