NANDFS eats itself up

[Boris Astardzhiev]

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).


On Wed, Nov 28, 2012 at 5:13 PM, Mateusz Guzik <mjguzik at 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>
>