From owner-freebsd-fs@FreeBSD.ORG Wed Nov 28 21:07:16 2012 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id C07294DD; Wed, 28 Nov 2012 21:07:16 +0000 (UTC) (envelope-from ronald-freebsd8@klop.yi.org) Received: from cpsmtpb-ews10.kpnxchange.com (cpsmtpb-ews10.kpnxchange.com [213.75.39.15]) by mx1.freebsd.org (Postfix) with ESMTP id 14EFC8FC0C; Wed, 28 Nov 2012 21:07:13 +0000 (UTC) Received: from cpsps-ews07.kpnxchange.com ([10.94.84.174]) by cpsmtpb-ews10.kpnxchange.com with Microsoft SMTPSVC(7.5.7601.17514); Wed, 28 Nov 2012 22:05:23 +0100 Received: from CPSMTPM-TLF103.kpnxchange.com ([195.121.3.6]) by cpsps-ews07.kpnxchange.com with Microsoft SMTPSVC(7.5.7601.17514); Wed, 28 Nov 2012 22:05:23 +0100 Received: from sjakie.klop.ws ([212.182.167.131]) by CPSMTPM-TLF103.kpnxchange.com with Microsoft SMTPSVC(7.5.7601.17514); Wed, 28 Nov 2012 22:06:05 +0100 Received: from 212-182-167-131.ip.telfort.nl (localhost [127.0.0.1]) by sjakie.klop.ws (Postfix) with ESMTP id 24B9C4680; Wed, 28 Nov 2012 22:06:05 +0100 (CET) Content-Type: text/plain; charset=us-ascii; format=flowed; delsp=yes To: "Mateusz Guzik" , "Boris Astardzhiev" Subject: Re: NANDFS eats itself up References: <20121128104218.GA17871@dft-labs.eu> <20121128151336.GC17871@dft-labs.eu> Date: Wed, 28 Nov 2012 22:06:05 +0100 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: "Ronald Klop" Message-ID: In-Reply-To: User-Agent: Opera Mail/12.11 (FreeBSD) X-OriginalArrivalTime: 28 Nov 2012 21:06:05.0702 (UTC) FILETIME=[2E36BA60:01CDCDAC] X-RcptDomain: freebsd.org Cc: freebsd-fs@freebsd.org, gjb@semihalf.com, Grzegorz Bernacki , stanislav_galabov@smartcom.bg X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 28 Nov 2012 21:07:17 -0000 On Wed, 28 Nov 2012 16:36:11 +0100, Boris Astardzhiev wrote: > If I do that I might be unable to set back the verbose level to 0 since > the > output is very very NOISY. This means that I will have to start again > from > the beginning if I need to reproduce it. Nevertheless here you go. Check > the attachment (OUTPUTNAND.txt.bz2). Your attachment is stripped by the mailinglist. Ronald. > On Wed, Nov 28, 2012 at 5:13 PM, Mateusz Guzik wrote: > >> On Wed, Nov 28, 2012 at 05:06:12PM +0200, Boris Astardzhiev wrote: >> > Yes, I do. I've made this to repeat via a script. The interval between >> each >> > SCP transfer is 100s. I thought it would give just enough time to the >> fs >> > for reclaiming its space back. >> > >> > Now I stopped the transfers and doubled the >> vfs.nandfs.cleaner_segments >> to >> > 10. The fs has no files in it but it reports "~9.6MB" of used space. >> 4+ >> > hours later it has NOT changed at all it still reports "~9.6MB" Used. >> > >> >> Now this indeed sounds like a bug. Can you enable debug like this: >> # sysctl vfs.nandfs.verbose=0xffffffff >> >> The kernel will start printing a lot of debugging information. With >> default configuration of syslog this will end up in /var/log/messages. >> Capture something like 30 seconds of output and post it somewhere. >> >> -- >> Mateusz Guzik