From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: util-linux-owner@vger.kernel.org Received: from mout.gmx.net ([212.227.17.22]:38315 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751122AbeCIPGK (ORCPT ); Fri, 9 Mar 2018 10:06:10 -0500 Received: from zappa.l.ga-group.nl ([87.128.112.108]) by mail.gmx.com (mrgmx101 [212.227.17.168]) with ESMTPSA (Nemesis) id 0Lip2P-1eOZHY1Foz-00cwWe for ; Fri, 09 Mar 2018 16:06:09 +0100 From: Ruediger Meier To: util-linux@vger.kernel.org Subject: Re: debug parallel root checks Date: Fri, 9 Mar 2018 16:06:08 +0100 References: <201803091547.40271.sweet_f_a@gmx.de> In-Reply-To: <201803091547.40271.sweet_f_a@gmx.de> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Message-Id: <201803091606.08473.sweet_f_a@gmx.de> Sender: util-linux-owner@vger.kernel.org List-ID: On Friday 09 March 2018, Ruediger Meier wrote: > Hi, > > Our parallel root checks look already nice on the first view. > On the second view they fail the stress test, at least on my > system. Just an arbitrary example. Sometimes I get this failure $ cat tests/diff/mount/uuid --- /tmp/ul2/tests/expected/mount/uuid 2018-03-09 11:04:54.992654305 +0100 +++ /tmp/ul2/tests/output/mount/uuid 2018-03-09 15:55:00.168028810 +0100 @@ -1 +1,2 @@ -Success +mount: /tmp/ul2/tests/output/mount/uuid-mnt: can't find UUID="f102445a-f6f3-4657-bc58-81ff164fc0d9". +A) Cannot find /dev/loop10 in /proc/mounts So mount can't find that UUID although it was found before by ts_uuid_by_devname, i.e. by blkid(1). What could be the problem: - another test thread removed the UUID - invalid blkid cache - a bug? cu, Rudi