NANDFS eats itself up

[Ronald Klop]

On Wed, 28 Nov 2012 16:36:11 +0100, Boris Astardzhiev  
<boris.astardzhiev at 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 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>