From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jordi Pujol Subject: Re: overlayfs patches for ovl_copy_up & ovl_rename Date: Thu, 19 May 2011 09:47:16 +0200 Message-ID: <201105190947.17303.jordipujolp@gmail.com> References: <201105041659.38427.jordipujolp@gmail.com> <201105180944.35027.jordipujolp@gmail.com> <87zkmkmmb6.fsf@tucsk.pomaz.szeredi.hu> Mime-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: 7bit Cc: linux-fsdevel@vger.kernel.org To: Miklos Szeredi Return-path: Received: from mail-wy0-f174.google.com ([74.125.82.174]:55387 "EHLO mail-wy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755492Ab1ESHrZ (ORCPT ); Thu, 19 May 2011 03:47:25 -0400 Received: by wya21 with SMTP id 21so1758079wya.19 for ; Thu, 19 May 2011 00:47:24 -0700 (PDT) In-Reply-To: <87zkmkmmb6.fsf@tucsk.pomaz.szeredi.hu> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: A Dimecres 18 Maig 2011 10:42:53, Miklos Szeredi va escriure: > Documentation/filesystems/directory-locking > > for all the gory details. ok, i'll look this, > So, is there a minimal test case that I can try to replicate the bad > behavior? it's an occasional error, occurs when the system is occupied processing diverse tasks at the same time, for example when startpar is running in parallel the initialization of system daemons, this is detected because some changes done by the same daemon program are lost, (the case of consecutive sed instructions) or when doing a big upgrade of the system packages, some files are lost. I believe than this could be reproduced in an stress test, running a process that creates a lot of files around, deletes them and moves from tmpfs to overlays; and the system must be very busy, because this one and the others processeses are working hard. Thanks, Jordi Pujol Live never ending Tale GNU/Linux Live forever! http://livenet.selfip.com