Date: Wed, 28 Nov 2012 22:06:05 +0100 From: "Ronald Klop" <ronald-freebsd8@klop.yi.org> To: "Mateusz Guzik" <mjguzik@gmail.com>, "Boris Astardzhiev" <boris.astardzhiev@gmail.com> Cc: freebsd-fs@freebsd.org, gjb@semihalf.com, Grzegorz Bernacki <gber@freebsd.org>, stanislav_galabov@smartcom.bg Subject: Re: NANDFS eats itself up Message-ID: <op.woh4wfma8527sy@212-182-167-131.ip.telfort.nl> In-Reply-To: <CAP=KkTwoa8Z3ksarZHD_k7Ye1razXzSDh=JesgVKRb4AR6U7Kg@mail.gmail.com> References: <CAP=KkTwX6t=6a_b7osbce5wLXrEEr_ryChAx-G5B24xOQw-q8g@mail.gmail.com> <20121128104218.GA17871@dft-labs.eu> <CAP=KkTwdh631nrTScuG6v4rdvk8zJMsOPKosc2-WGa3-aWp4EQ@mail.gmail.com> <20121128151336.GC17871@dft-labs.eu> <CAP=KkTwoa8Z3ksarZHD_k7Ye1razXzSDh=JesgVKRb4AR6U7Kg@mail.gmail.com>
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On Wed, 28 Nov 2012 16:36:11 +0100, Boris Astardzhiev <boris.astardzhiev@gmail.com> 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 <mjguzik@gmail.com> 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 <mjguzik gmail.com>
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