From mboxrd@z Thu Jan 1 00:00:00 1970 X-GM-THRID: 6680483261914808320 X-Received: by 2002:a5d:52ce:: with SMTP id r14mr26146813wrv.224.1556182361318; Thu, 25 Apr 2019 01:52:41 -0700 (PDT) X-BeenThere: isar-users@googlegroups.com Received: by 2002:a1c:f310:: with SMTP id q16ls2679855wmq.3.gmail; Thu, 25 Apr 2019 01:52:40 -0700 (PDT) X-Google-Smtp-Source: APXvYqwqjG434yloxO37PAD1BAUXFOTxnw90yCNA+e0/obi7140iYwnr1G5w+uSiyRBD7Dyi+hFP X-Received: by 2002:a05:600c:2309:: with SMTP id 9mr2708894wmo.52.1556182360794; Thu, 25 Apr 2019 01:52:40 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1556182360; cv=none; d=google.com; s=arc-20160816; b=g6VxOqFYrp0dHxoB4s3DvqhCjart3U89cFkakB7jxBCapzgN8WxtEY8yy2QKyksLOZ 8qofHs1b9eHrwOCueYhTVqepGHFQ5D+g2WBHFdInRnc+h33v69jars0as/AjLBEZfGRz Foy0/bq7aYPDTcO6/dJW73IJYAluAj0Nh0fyqIcgXp1jISoJKzgoGB7xY2hVJdsPA57D Cq2t1L26U9swVVAUL600mAArNHk/KjAk8BzjJgfJhDXvI2xmcrxg10xbLi6yDniUQYHA 68EbfRWRaPxK6jKW4BnraAPUCEVqqSgGVJhAaTwbZODPOcAI0BUUUb2+/jEiQGxSQd1L /O7A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:content-language:in-reply-to:mime-version :user-agent:date:message-id:from:references:cc:to:subject; bh=HmK52kZ3Pd2j/uNijaTa1XiyytvqZhrV06AnHUdL5Qw=; b=ojCWERCrSwQ4t+66laus9oPDBujddagrg9ACVLlEfsOxGrkjSdfQOjuWI1ozUbmwsI ggLthXv7jPLngWU/GqJOSLr441MNR+tuaGKIzb6tk6tDdiIGvdGYeLt/XjUZ5KghMhMI q2BKnrA436G/d5Ku4QVIwCjoEliRB3OAB06r0zR6DePTJ0LAAkHCU1VCX4XbZh322tFz DUslEnC3xrJ91QHvGUtI4An1XFTJbfBbqlG3UZo/f2JWmPtmKHgPyWsQlrjkc0HAv9tj vmqCdipWAk8fhZehKbY+7Y8pGwE6j/7E59NMI16DhwWusPkIlPLl8NrYQ+qm19z0B9/t rZ/g== ARC-Authentication-Results: i=1; gmr-mx.google.com; spf=pass (google.com: domain of jan.kiszka@siemens.com designates 192.35.17.2 as permitted sender) smtp.mailfrom=jan.kiszka@siemens.com Return-Path: Received: from thoth.sbs.de (thoth.sbs.de. [192.35.17.2]) by gmr-mx.google.com with ESMTPS id y130si172684wmd.2.2019.04.25.01.52.40 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 25 Apr 2019 01:52:40 -0700 (PDT) Received-SPF: pass (google.com: domain of jan.kiszka@siemens.com designates 192.35.17.2 as permitted sender) client-ip=192.35.17.2; Authentication-Results: gmr-mx.google.com; spf=pass (google.com: domain of jan.kiszka@siemens.com designates 192.35.17.2 as permitted sender) smtp.mailfrom=jan.kiszka@siemens.com Received: from mail2.sbs.de (mail2.sbs.de [192.129.41.66]) by thoth.sbs.de (8.15.2/8.15.2) with ESMTPS id x3P8qelc006536 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 25 Apr 2019 10:52:40 +0200 Received: from [139.22.38.17] ([139.22.38.17]) by mail2.sbs.de (8.15.2/8.15.2) with ESMTP id x3P8qdXJ011251; Thu, 25 Apr 2019 10:52:39 +0200 Subject: Re: [PATCH v3 0/8] Cleanup rootfs creation To: "[ext] Claudius Heine" , "Maxim Yu. Osipov" , isar-users@googlegroups.com Cc: Claudius Heine References: <20190424092734.14167-1-claudius.heine.ext@siemens.com> <33359f72-d7d0-0d41-051d-da9885bd7354@ilbers.de> <0523bc46-f96e-d4d0-1828-fc99079c938b@siemens.com> From: Jan Kiszka Message-ID: Date: Thu, 25 Apr 2019 10:52:39 +0200 User-Agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 MIME-Version: 1.0 In-Reply-To: <0523bc46-f96e-d4d0-1828-fc99079c938b@siemens.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-TUID: PuHGV+7TdWgv On 25.04.19 08:40, [ext] Claudius Heine wrote: > Hi Maxim, > > On 25/04/2019 08.03, Maxim Yu. Osipov wrote: >> >> Tried this series with fast ci build ("scripts/ci_build.sh -q -f"- >> similar problems as before. >> http://isar-build.org:8080/job/isar_mosipov_develop/98/console >> >> I observe the same errors on my host. > > So what do we do then when the CI is not reproducible? Then you likely see a race that you may only trigger by running sufficient builds in parallel, and maybe only with the "right" number of cores. Otherwise, you need to do offline analysis or push instrumented branches into the same CI system If you take the time to look at the logs, you will likely quickly spot that there is some issue with mounting /dev and possibly also /dev/pts. Dig into your changes /wrt what may have created a race here - or started to expose a sleeping one. In any case, we need to make CI a community resource. We will come up with a proposal soon. Jan -- Siemens AG, Corporate Technology, CT RDA IOT SES-DE Corporate Competence Center Embedded Linux